Personal Mobile DTV Cellular Phone Terminal Developed for Digital Terrestrial Broadcasting With Internet Services
|
|
- Georgina Miles
- 6 years ago
- Views:
Transcription
1 Personal Mobile DTV Cellular Phone Terminal Developed for Digital Terrestrial Broadcasting With Internet Services ATSUSHI KOIKE, SHUICHI MATSUMOTO, AND HIDEKI KOKUBUN Invited Paper Digital terrestrial broadcasting in Japan specifies a service profile not only for fixed receivers in the home, but also for personal mobile terminals such as acellular phones and PDAs. Services for personal mobile terminals are expected to become more attractive with sufficient functionality and flexibility by utilizing the network connectivity of mobile terminals. In order to verify the possibilities of digital television broadcasting (DTV) services for personal mobile terminals and clarify technical problems at the commercial level, we developed a prototype mobile terminal capable of receiving digital terrestrial broadcasting in addition to the Internet. This paper describes the assumed DTV service for personal mobile terminals and the technical architecture of the developed mobile terminal with regard to the hardware and the software. Several experiments using the developed mobile terminal were conducted and the performance was evaluated. Keywords Cellular phone, digital terrestrial broadcasting, integrated services, Internet streaming, personal mobile terminal. I. INTRODUCTION Terrestrial digital broadcasting was launched in the Tokyo, Osaka, and Nagoya areas of Japan in December The broadcasting is composed of three different service profiles as described in the following. The first service is for home terminals. It corresponds to the high-definition television (HDTV) service for typical fixed receiver terminals. The second service is for mobile terminals. A typical mobile terminal assumed in this service is car navigation equipment. The third is for personal mobile terminals such as PDAs or cellular phones. Manuscript received February 27, 2005; revised August 23, A. Koike and S. Matsumoto are with KDDI R&D Labs., Inc., Saitama, Japan ( koike@kddilabs.jp; matsumoto@kddilabs.jp). H. Kokubun is with the Science and Technical Research Laboratories (STRL), NHK (Japan Broadcasting Corporation), Tokyo , Japan ( kokubun.h-ek@nhk.or.jp). Digital Object Identifier /JPROC Of the three services for digital television broadcasting (DTV), the service for personal mobile terminals is expected to become an attractive service with sufficient functionality and flexibility by utilizing the network connectivity of mobile terminals [1]. In order to verify the possibilities of the DTV services for personal mobile terminals and examine technical problems at the commercial level, we developed a prototype mobile terminal, which is a cellular phone type, capable of receiving digital terrestrial broadcasting in addition to the Internet service. This paper describes the assumed DTV services (so-called integrated services) for personal mobile terminals and the technical architecture of the developed mobile terminal with regard to the hardware and the software. Several experiments using the developed mobile terminal were conducted and the performance was evaluated. II. NETWORK CONFIGURATION Fig. 1 shows an assumed network configuration where the integrated services can be provided. The service network includes several items of server equipment. The main role of each server is summarized below. A. DTV Content Server The DTV content server distributes DTV contents in an MPEG-2 transport stream (TS) format. The server is located in a broadcasting station. The DTV content is transmitted based on the standard protocol stack shown in Fig. 2. Broadcasting Markup Language (BML) is used to describe a hypertext data, which is based on XHTML and several extensions specific for the DTV service. B. Internet Content Server The Internet content server provides streaming contents in video as well as typical web contents prepared for cellular /$ IEEE PROCEEDINGS OF THE IEEE, VOL. 94, NO. 1, JANUARY
2 Fig. 1. Network configuration for integrated services. Fig. 2. Transmission format of DTV contents. phone terminals. These contents can be accessed directly via an Internet connection and are also accessible from the BML in DTV contents, which includes a hyperlink to the corresponding URL. C. Program Distribution Server The program distribution server receives DTV contents and extracts MPEG-2 TS packets. These packets are converted in a streaming format preparing for the program redistribution according to user demands. D. Network Boot Controller The network boot controller manages a user profile for each mobile terminal, and sends a trigger message to an arbitrary mobile terminal. This message is utilized in order to switch the terminal operation mode (stand by mode, DTV mode, etc.) automatically based on user requests. III. PROPOSED APPLICATION MODEL A prototype terminal was developed to verify the possibilities of integrated service for personal mobile terminals and clarify technical problems at the commercial level. Fig. 3 shows the proposed GUI layout of the developed prototype terminal. The display area is divided into two areas under the TV mode operation. The top area is allocated to display the video content of a DTV program. The bottom is allocated to display the browser output. It is commonly used by BML contents in DTV and Internet web contents. The operation mode is switched by the TV button and the Internet button on the terminal. When the TV button is pressed, the TV mode 282 PROCEEDINGS OF THE IEEE, VOL. 94, NO. 1, JANUARY 2006
3 Fig. 3. GUI layout of prototype terminal. is selected and DTV programs are displayed. On the other hand, pressing the Internet button initiates the Internet web access. Several examples of assumed application images are introduced in the following. A. Emergency Warning System The terminal operation mode can be switched depending on a trigger message received from a network boot controller. By using this mechanism, an emergency warning system can be implemented. This system notifies a user of special news bulletins when a disaster occurs. As a general use, this mechanism is also applicable for a TV program reservation service, where the TV play operation is automatically started in synchronization with the program situation requested by the user in advance. B. GPS Information Service By utilizing the GPS service of a cellular phone, regional information can be properly selected and provided from Internet web contents, depending on the current terminal position measured by GPS. Based on the mechanism, a weather information service for the target area is automatically determined by adapting to the terminal position. C. Assistance for Users Narration texts for the selected TV program can be obtained in many languages as Internet web contents. In the Japanese DTV service, insertion of subtitles written in Japanese is mandatory for any on-air program. However, further detailed information can be obtained with regard to the currently distributed program from the Internet web server. This application contributes to assisting users who require narration text data using appropriate languages to understand the program content. D. TV Chat Service When more than two users are watching the same TV program, the so-called TV chat services are available by mutually submitting short messages to a chat server located on the Internet. In addition to these applications, TV program navigation services such as web EPG (electric program guide) are provided. IV. DEVELOPED PROTOTYPE TERMINAL The detailed system architecture of the developed prototype cellular phone terminal is described in the following. Fig. 4 shows an outline of the prototype, while the principal system parameters are summarized in Table 1. To achieve high performance, SH-Mobile V [3] CPU is adopted. The terminal is equipped with a DTV receiver module that includes the RF antenna and the DTV tuner for the OFDM. The transport stream format and coding syntax of each medium strictly conform to the Japanese DTV standard specified in ARIB STD-B24 [4]. Fig. 5 shows the configuration of software modules embedded on the hardware described above. The meshed region in the figure corresponds to specific software modules for receiving DTV programs. The TS controller module controls each media decoder module to maintain the media synchronization. The application manager provides a user interface and controls subsidiary modules. A browser module is com- KOIKE et al.: PERSONAL MOBILE DTV CELLULAR PHONE TERMINAL DEVELOPED FOR DIGITAL TERRESTRIAL BROADCASTING 283
4 Fig. 4. Outline of prototype terminal. Table 1 System Parameters of Prototype Terminal monly used for DTV BML contents and Internet Web contents. A. Application Manager Module An application manager module controls all software tasks including low-level software engines. This main module is comprised of the tasks listed below. 1) TS Packet Manager: The TS packet manager task provides the packet scheduling mechanism for the TS control module in order to eliminate the network jitter from a received transport stream. This task also provides a buffering mechanism for Internet web content. 2) GUI Control: The GUI control task provides a GUI framework and manages user events and application status. 3) DSM-CC Manager: The DSM-CC manager task manages BML data objects according to instructions from a DSM-CC carousel decoder module. The main function is a content cache and a data delivery for the XHTML browser module by which the browsing performance improvement can be achieved. 4) Emergency Receiver: To realize the emergency warning system, a trigger message is emitted for selected terminals. An emergency receiver task receives and interprets the trigger message, and activates the appropriate DTV function. B. TS Control Module The TS control module provides MPEG-2 TS and MPEG-2 packetized elementary stream (PES) protocol stacks, and maintains media synchronization of real time contents (audio and video streams). Fig. 6 shows the employed synchronization mechanism. and indicate the buffer occupancy levels with regard to the audio presentation unit (PU) and video PU, respectively. The presentation timing for an audio frame and a video frame is managed in the following way. 284 PROCEEDINGS OF THE IEEE, VOL. 94, NO. 1, JANUARY 2006
5 Fig. 5. Software configuration embedded on prototype terminal. 1) Audio Stream: Reconstructed digital audio data are stored in an audio PU buffer. When the occupancy level reaches the threshold value TH, audio play is started and the current local system time clock (STC) time is set at the same value as the first audio presentation time stamp (PTS) value PTS. Then, STC time is adjusted based on the system clock frequency (27 MHz) calculated from the received program clock reference (PCR) value. 2) Video Stream: Video frame output is conducted by directly refreshing the VRAM when corresponding to PTS time. As long as the audio initialization process has not established local STC time, received video PES packets are discarded. C. Demuxer Module The demuxer module extracts media elementary streams (MPEG-4 Visual, MPEG-2 AAC and DSM-CC) from a transport stream received from TS control module. D. MPEG-2 AAC Decoder Module The MPEG-2 AAC decoder module reconstructs digital audio data from the MPEG-2 AAC elementary stream. E. MPEG-4 Visual Decoder Module The MPEG-4 visual decoder module reconstructs image data from the MPEG-4 visual elementary stream. F. DSM-CC Carousel Decoder Module The DSM-CC carousel decoder module extracts BML objects from the DSM-CC elementary stream and notifies the application manager of an event whereby new BML objects have been detected. G. XHTML Basic Browser Module The XHTML Basic browser module presents XHTML contents received from the application manager. This module is composed of XHTML1.1/Basic profile, CSS2 subset, and ECMA scripts. This browser conforms to the basic BML module specified in ARIB STD-B24 [3] exactly. H. TCP (UDP)/IP Control Module The TCP (UDP)/IP control module provides TCP/IP and UDP/IP protocol stacks on the network interface (CDMA 1X WIN), while extracted payload data units are delivered to the application manager module. Fig. 7 shows the receiving process for Internet streaming from the program distribution. DTV contents in MPEG-2 TS (simply called TS in the following) format are transmitted over Real-Time Transport Protocol (RTP). This protocol is a representative real-time streaming protocol over the UDP/IP protocol [6], [7]. Table 2 summarizes several parameters specifying the receiver process of streaming. can be calculated by (1) When packet loss occurs, no TS packets exist in the TS buffer even at the corresponding scheduled timing according to. In this case, a periodic input process for the TS (1) KOIKE et al.: PERSONAL MOBILE DTV CELLULAR PHONE TERMINAL DEVELOPED FOR DIGITAL TERRESTRIAL BROADCASTING 285
6 Fig. 6. Synchronization mechanism for audio and video presentation units. Table 2 Operation Parameters of Streaming Client Fig. 7. Receiver process for Internet streaming. decoder is maintained by feeding the dummy data whose length corresponds to the lost data. V. PERFORMANCE EVALUATION For the performance evaluation of the developed terminal, several experiments were conducted by using an actual terminal and an in-service cellular phone network. From the experimental results, the total software performance of DTV client was first evaluated, and then the performance, especially when operating as the RTP streaming client, was evaluated. A. Software Performance The software performance was evaluated under service parameters particularly for terminal operations on the TV play mode as shown in Table 3. ISDB-T means the digital terrestrial broadcasting scheme adopted in Japan [5]. Active vertical size in the video coding is smaller than the value in the table so that the aspect ratio in active video samples can be kept at 16 : 9. As experimental results, the CPU usage ratio of each internal task is summarized in Table 4. In order to obtain detailed results precisely, the experiments were conducted by 286 PROCEEDINGS OF THE IEEE, VOL. 94, NO. 1, JANUARY 2006
7 Table 3 Operation Parameters for Performance Evaluation Table 6 Condition of Transmission Experiment Table 7 Initial Buffering Level Required to Prevent TS Buffer Underflow Table 4 CPU Usage Ratio of Each Internal Task Table 5 Definition of Software Module Category from the program distribution server was observed. Table 6 shows the transmission condition. As for the mapping mechanism of TS packets into an RTP packet, was selected as an integer whose value is from three to seven so that the IP packet payload length could be kept smaller than 1500 B, accounting for preventing IP packet fragmentation. At the program distribution server, the timing for sending every RTP packet is controlled with sufficient precision to keep the interval of successive RTP packet transmission at a close value to calculated by (2) (2) using the prototype terminal formerly developed [2]. Evaluated software modules are categorized as shown in Table 5, and the CPU usage ratio is represented by a percentage. From these results, it was confirmed that the occupancy ratio using a system control task increased when initializing the receiving process of DTV programs. The result only includes the averaged value, while the result for the A/V decoder task was confirmed to have a fluctuation that depends on image characteristics such as the distribution of moving vectors. In addition, the occupancy by XHTML browser task was concentrated only for a relatively short period while BML or XHTML data objects were updated. B. Performance of Internet Streaming In order to evaluate the performance of TCP (UDP)/IP controller, packet receiving process for Internet streaming First, the arrival time of every RTP packet was observed at the terminal to evaluate the relation between the receiver performance and the RTP payload length. The arrival time is expressed by the number of elapsed seconds after the arrival of the first RTP packet. The TS buffer occupancy level is calculated by (3) where indicates the total number of received RTP packets at the time. From the result of, the initial buffering level required to prevent the TS buffer underflow was estimated. Table 7 shows the estimated initial buffering level. was set identical to in order to simplify the condition. Fig. 8 shows the buffer occupancy level observed under (, ). There was no IP packet loss detected in those experiments. (3) KOIKE et al.: PERSONAL MOBILE DTV CELLULAR PHONE TERMINAL DEVELOPED FOR DIGITAL TERRESTRIAL BROADCASTING 287
8 [3] News releases from headquarters, [Online]. Available: [4] Data Coding and Transmission Specification for Digital Broadcasting, ARIB STD-B24, Association of Radio Industries and Businesses, Feb [5] Error-correction, data framing, modulation and emission methods for digital terrestrial television broadcasting, Recommendation ITU-R BT (draft revision), Jul [6] RTP: A transport protocol for real-time applications, IETF RFC 3550, Jul [Online]. Available: [7] RTP payload format for MPEG1/MPEG2 video, IETF RFC 2250, Jan [Online]. Available: Fig. 8. TS buffer occupancy L(t) (NT =7,LS =1). From the results above, it was confirmed that the required initial buffering level was almost equivalent among evaluated parameters for. With regard to the CPU load caused by the TCP (UDP)/IP manager, the frequency of RTP packet receiving process can be decreased as the RTP payload length becomes larger. Therefore, it can be concluded that the optimal value for is given by the largest value that meets the limitation for preventing the IP fragmentation. information system. Atsushi Koike was born in He received the M.E. degree from Tohoku University in 1985 and the Ph.D. degree from Kyoto University in He has been working at KDDI, Saitama, Japan, since He is now the group leader of Visual Communications Laboratory, KDDI R&D Laboratories Inc. He has been engaged in research and development on visual communication technology such as high efficiency coding of moving images, model based image coding, and still image transmission systems, and medical VI. CONCLUSION This paper describes an assumed DTV service (so-called integrated service) for personal mobile terminals, and the technical architecture of the developed terminal with regard to the hardware and the software. We also conducted several experiments using the developed prototype terminal. From these results, the total software performance on the typical DTV operation and the receiver performance for Internet streaming from the program distribution server were evaluated. Future study includes a field trial in which the developed mobile terminal receives the DVT program transmitted from an actual broadcasting station. ACKNOWLEDGMENT The authors would like to thank the Central Research Laboratory of Hitachi Ltd., Japan, for much cooperation in developing the mobile DTV cellular phone terminal. REFERENCES [1] H. Kokubun et al., Development of a Simulator for Integrated Internet and Broadcasting Services, ITE Tech. Rep. vol. 26, no. 24, pp , Mar [2] S. Naito et al., Personal mobile DTV terminal designed for service trial of digital terrestrial broadcasting with full use of Internet connectivity, in Proc. ICMU 2004 pp Shuichi Matsumoto was born in He received the M.E. and Dr.Eng. degrees from Hokkaido University in 1979 and 1990, respectively. He has been working at KDDI, Saitama, Japan, since He is currently the executive director of KDDI R&D Laboratories Inc. He has been engaged in research and development on video transmission technology such as high efficiency compression coding of moving pictures especially for SDTV and HDTV. Hideki Kokubun was born in He received the B.S. degree from Tokyo Institute of Technology in He joined NHK (Japan Broadcasting Corporation), Tokyo, in Since 1978, he has been working at the Science and Technical Research Laboratories (STRL) of NHK and has been engaged in the research and development of very large scale integration (VLSI) for high-speed image processing, especially in the development of HDTV decoders and PDP signal processors. He joined NHK Engineering Services Inc. in He has been engaged in the research of the advanced information services research laboratory. He has been engaged in the research and development of a useful mobile receiver and new network-linked broadcasting services. He is currently a Senior Member of the research staff in Networked Broadcasting Systems, STRL. Mr. Kokubun is a member of the Image Information and Television Engineers of Japan and the Institute of Electronics, Information and Communication Engineers of Japan. 288 PROCEEDINGS OF THE IEEE, VOL. 94, NO. 1, JANUARY 2006
Transmission System for ISDB-S
Transmission System for ISDB-S HISAKAZU KATOH, SENIOR MEMBER, IEEE Invited Paper Broadcasting satellite (BS) digital broadcasting of HDTV in Japan is laid down by the ISDB-S international standard. Since
More informationPanasonic. Data Broadcasting. June 15, 2000 Matsushita Electric Industrial Co. Ltd
Data Broadcasting June 15, 2000 Matsushita Electric Industrial Co. Ltd 2 Situation of Digital Broadcasting in Japan 3 Current Situation in Japan CS digital broadcasting service SkyPerfecTV Japan provide
More informationDevelopment of Media Transport Protocol for 8K Super Hi Vision Satellite Broadcasting System Using MMT
Development of Media Transport Protocol for 8K Super Hi Vision Satellite roadcasting System Using MMT ASTRACT An ultra-high definition display for 8K Super Hi-Vision is able to present much more information
More informationDVB-S2 and DVB-RCS for VSAT and Direct Satellite TV Broadcasting
Hands-On DVB-S2 and DVB-RCS for VSAT and Direct Satellite TV Broadcasting Course Description This course will examine DVB-S2 and DVB-RCS for Digital Video Broadcast and the rather specialised application
More informationISDB-C: Cable Television Transmission for Digital Broadcasting in Japan
ISDB-C: Cable Television Transmission for Digital Broadcasting in Japan SATOSHI TAGIRI, YOSHIKI YAMAMOTO, AND ASASHI SHIMODAIRA Invited Paper Following the growing digitalization of broadcasting, Integrated
More informationInteroperability in Multimedia and Data Broadcasting
IPCableCom / MediaCom 2004 / Interactive Multimedia Workshop ITU, Geneva, 12-15 March 2002 Interoperability in Multimedia and Data Broadcasting A MediaCom 2004 Presentation by Shuji Hirakawa Media & Contents
More informationWhite Paper. Video-over-IP: Network Performance Analysis
White Paper Video-over-IP: Network Performance Analysis Video-over-IP Overview Video-over-IP delivers television content, over a managed IP network, to end user customers for personal, education, and business
More informationELEC 691X/498X Broadcast Signal Transmission Winter 2018
ELEC 691X/498X Broadcast Signal Transmission Winter 2018 Instructor: DR. Reza Soleymani, Office: EV 5.125, Telephone: 848 2424 ext.: 4103. Office Hours: Wednesday, Thursday, 14:00 15:00 Slide 1 In this
More informationSpeech Recognition and Signal Processing for Broadcast News Transcription
2.2.1 Speech Recognition and Signal Processing for Broadcast News Transcription Continued research and development of a broadcast news speech transcription system has been promoted. Universities and researchers
More informationFeatures of ISDB-T and Activities to spread watching DTV in Japan
Features of ISDB-T and Activities to spread watching DTV in Japan October 20, 2003 Jakarta, Indonesia Atsumi SUGIMOTO DiBEG DiBEG Digital Broadcasting Experts Group Contents What is DiBEG? Features of
More information1. Video Coding System
ISDB-T seminar in Brazil( 2007) in Brazil Seminar #6 Brief Presentation for Video/Audio/ data casting system in Japan Preface As you know, Brazilian source coding and middleware are not same as Japanese
More informationATSC vs NTSC Spectrum. ATSC 8VSB Data Framing
ATSC vs NTSC Spectrum ATSC 8VSB Data Framing 22 ATSC 8VSB Data Segment ATSC 8VSB Data Field 23 ATSC 8VSB (AM) Modulated Baseband ATSC 8VSB Pre-Filtered Spectrum 24 ATSC 8VSB Nyquist Filtered Spectrum ATSC
More informationTopics on Digital TV Sets in Japan. September 5, 2003 Atsumi SUGIMOTO DiBEG
Topics on Digital TV Sets in Japan September 5, 2003 Atsumi SUGIMOTO Contents Schedule of Digital Broadcasting in Japan Volume of Shipments of Digital TV Sets and Set-Top-boxes Ratios between Flat Panel
More informationRecent Topics on Digital Terrestrial TV Broadcasting in Japan
DiBEG Digital Broadcasting Experts Group Recent Topics on Digital Terrestrial TV Broadcasting in Japan Sep. 3, 2003 Makoto KAIJIMA Toshiba Corporation Chairman of DiBEG http://www.dibeg.org/ Schedule of
More informationHEVC/H.265 CODEC SYSTEM AND TRANSMISSION EXPERIMENTS AIMED AT 8K BROADCASTING
HEVC/H.265 CODEC SYSTEM AND TRANSMISSION EXPERIMENTS AIMED AT 8K BROADCASTING Y. Sugito 1, K. Iguchi 1, A. Ichigaya 1, K. Chida 1, S. Sakaida 1, H. Sakate 2, Y. Matsuda 2, Y. Kawahata 2 and N. Motoyama
More informationProposed Standard Revision of ATSC Digital Television Standard Part 5 AC-3 Audio System Characteristics (A/53, Part 5:2007)
Doc. TSG-859r6 (formerly S6-570r6) 24 May 2010 Proposed Standard Revision of ATSC Digital Television Standard Part 5 AC-3 System Characteristics (A/53, Part 5:2007) Advanced Television Systems Committee
More informationVerification Methodology for a Complex System-on-a-Chip
UDC 621.3.049.771.14.001.63 Verification Methodology for a Complex System-on-a-Chip VAkihiro Higashi VKazuhide Tamaki VTakayuki Sasaki (Manuscript received December 1, 1999) Semiconductor technology has
More informationService and Technology Overview of Multimedia Broadcasting for Mobile Terminals
: Latest Trends of Multimedia Technologies for Mobile Terminals Service and Technology Overview of Multimedia for Mobile Terminals Tomoyuki Ohya, Masayuki Ishikawa, Hideo Suzuki, Junichi Kishigami, Kenji
More informationHands-On Real Time HD and 3D IPTV Encoding and Distribution over RF and Optical Fiber
Hands-On Encoding and Distribution over RF and Optical Fiber Course Description This course provides systems engineers and integrators with a technical understanding of current state of the art technology
More informationDigitalization Process in Japan
Digitalization Process in Japan SET 2006 CONGRESS 24 th,august, 2006 DiBEG JAPAN Yasuo TAKAHASHI (Toshiba) Contents Outline of Broadcasting in Japan system Schedule and Policy for Digitalization ISDB-T
More informationMobile TV broadcasting in Japan
Mobile TV broadcasting in Japan 23 May 2011in Hanoi, Vietnam ITU-AIBD-ABU Regional Workshop on Digital Broadcasting Yasushi Furukawa, Director for International Relations, Broadcasting Technology Division
More informationReference Parameters for Digital Terrestrial Television Transmissions in the United Kingdom
Reference Parameters for Digital Terrestrial Television Transmissions in the United Kingdom DRAFT Version 7 Publication date: XX XX 2016 Contents Section Page 1 Introduction 1 2 Reference System 2 Modulation
More informationDVB-T and DVB-H: Protocols and Engineering
Hands-On DVB-T and DVB-H: Protocols and Engineering Course Description This Hands-On course provides a technical engineering study of television broadcast systems and infrastructures by examineing the
More informationAs novidades do Laboratório de Pesquisas de Ciências e de Técnicas (STRL) da NHK. Sep 2003 SET2003 9:00-11:00 Auditório B Hiroo Arata
1 As novidades do Laboratório de Pesquisas de Ciências e de Técnicas (STRL) da NHK. Sep 2003 SET2003 9:00-11:00 Auditório B Hiroo Arata 2 open house(presentation) Video(English) 20 minute HDTV Mobile reception
More informationDigital terrestrial television broadcasting Receivers
Digital terrestrial television broadcasting Receivers Televisão digital terrestre Receptores Televisión digital terrestre Receptores Digital terrestrial television broadcasting Receivers デジタル放送用受信装置 Receiver
More informationDigital Terrestrial Broadcasting in Japan (ISDB-T System)
Digital Terrestrial Broadcasting in Japan (ISDB-T System) CONTENTS 1. Outline of Digital Broadcasting in Japan 2. What is ISDB-T? 3. Comparison of 3 DTTB Systems 4. Structure of ISDB-T T Standard 5. Current
More informationA NEW METHOD FOR RECALCULATING THE PROGRAM CLOCK REFERENCE IN A PACKET-BASED TRANSMISSION NETWORK
A NEW METHOD FOR RECALCULATING THE PROGRAM CLOCK REFERENCE IN A PACKET-BASED TRANSMISSION NETWORK M. ALEXANDRU 1 G.D.M. SNAE 2 M. FIORE 3 Abstract: This paper proposes and describes a novel method to be
More informationDigital TV Broadcasting in Japan. Tetsuo YAMAKAWA
Digital TV Broadcasting in Japan 27th. Feb. 2008 Tetsuo YAMAKAWA Ministry of Internal Affairs and Communications Japan Today s s Topics Current situation of digital terrestrial TV broadcasting (DTTB) in
More information4. Producing and delivering access services the options
Tutorial on Audio Visual Media Accessibility (New Delhi, India, 14-15 March 2012) 4. Producing and delivering access services the options Dr Takebumi ITAGAKI ECE, School of Engineering & Design, Brunel
More informationA LOW COST TRANSPORT STREAM (TS) GENERATOR USED IN DIGITAL VIDEO BROADCASTING EQUIPMENT MEASUREMENTS
A LOW COST TRANSPORT STREAM (TS) GENERATOR USED IN DIGITAL VIDEO BROADCASTING EQUIPMENT MEASUREMENTS Radu Arsinte Technical University Cluj-Napoca, Faculty of Electronics and Telecommunication, Communication
More informationMultimedia Standards
Multimedia Standards SS 2012 Lecture 12 Prof. Dr.-Ing. Karlheinz Brandenburg Karlheinz.Brandenburg@tu-ilmenau.de Contact: Dipl.-Inf. Thomas Köllmer Dr.-Ing. Uwe Kühhirt thomas.koellmer@tu-ilmenau.de uwe.kuehhirt@idmt.fraunhofer.de
More informationSatellite Digital Broadcasting Systems
Technologies and Services of Digital Broadcasting (11) Satellite Digital Broadcasting Systems "Technologies and Services of Digital Broadcasting" (in Japanese, ISBN4-339-01162-2) is published by CORONA
More informationDemonstration of geolocation database and spectrum coordinator as specified in ETSI TS and TS
Demonstration of geolocation database and spectrum coordinator as specified in ETSI TS 103 143 and TS 103 145 ETSI Workshop on Reconfigurable Radio Systems - Status and Novel Standards 2014 Sony Europe
More informationTelecommunication Development Sector
Telecommunication Development Sector Study Groups ITU-D Study Group 1 Rapporteur Group Meetings Geneva, 4 15 April 2016 Document SG1RGQ/218-E 22 March 2016 English only DELAYED CONTRIBUTION Question 8/1:
More informationHands-On DVB-T2 and MPEG Essentials for Digital Terrestrial Broadcasting
Hands-On for Digital Terrestrial Broadcasting Course Description Governments everywhere are moving towards Analogue Switch Off in TV broadcasting. Digital Video Broadcasting standards for use terrestrially
More informationJoint Optimization of Source-Channel Video Coding Using the H.264/AVC encoder and FEC Codes. Digital Signal and Image Processing Lab
Joint Optimization of Source-Channel Video Coding Using the H.264/AVC encoder and FEC Codes Digital Signal and Image Processing Lab Simone Milani Ph.D. student simone.milani@dei.unipd.it, Summer School
More informationDigital Terrestrial HDTV Broadcasting in Europe
EBU TECH 3312 The data rate capacity needed (and available) for HDTV Status: Report Geneva February 2006 1 Page intentionally left blank. This document is paginated for recto-verso printing Tech 312 Contents
More informationSPR-11P Portable Transport Stream Recorder and Player
SPR-11P Portable Transport Stream Recorder and Player Scivo Technologies Co., Ltd Room 406, Tayuan building No.1, Huayuan road, Haidian District Beijing, 100083, P.R.C Tel (8610) 62013361 62050737 Fax
More informationR&S CONTEST ITS Test cases and applications
CONTEST_ITS_Test_Cases_dat-sw_en_3607-0352-22_v0200_cover.indd 1 Data Sheet 02.00 Test & Measurement R&S CONTEST ITS Test cases and applications 31.05.2016 14:03:11 CONTENTS Definitions... 3 CONTEST basic
More informationANNEX-AA. Structure of ISDB-T system and its technical features
ISDB-T technical report ANNEX-AA. Structure of ISDB-T system and its technical features As written in Section 2. of main body of ISDB-T technical report, ISDB-T has many technical advantages. These advantages
More informationIPTV delivery of media over networks managed end-to-end, usually with quality of service comparable to Broadcast TV
Page 1 of 10 1 Scope Australian free-to-air (FTA) television broadcasters () are enhancing their content offerings by implementing IP delivery to Internet Connected Television receivers aligned with open
More informationTA Document IEEE1394 Interface Implementation Guideline STB Device for Japanese BS/CS Digital Broadcasting System 1.0
TA Document 2002015 IEEE1394 Interface Implementation Guideline STB Device for Japanese BS/CS Digital Broadcasting System 1.0 December 15, 2003 Sponsored by: 1394 Trade Association Accepted for Release
More informationCurrent Status of ATSC 3.0 The Next Generation Broadcast Television System. Jim Kutzner / PBS Skip Pizzi / NAB February 20, 2013
Current Status of ATSC 3.0 The Next Generation Broadcast Television System Jim Kutzner / PBS Skip Pizzi / NAB February 20, 2013 ATSC Advanced Television Systems Committee Established in the early 1980s
More informationReal Time PQoS Enhancement of IP Multimedia Services Over Fading and Noisy DVB-T Channel
Real Time PQoS Enhancement of IP Multimedia Services Over Fading and Noisy DVB-T Channel H. Koumaras (1), E. Pallis (2), G. Gardikis (1), A. Kourtis (1) (1) Institute of Informatics and Telecommunications
More informationIEEE802.11a Based Wireless AV Module(WAVM) with Digital AV Interface. Outline
IEEE802.11a Based Wireless AV Module() with Digital AV Interface TOSHIBA Corp. T.Wakutsu, N.Shibuya, E.Kamagata, T.Matsumoto, Y.Nagahori, T.Sakamoto, Y.Unekawa, K.Tagami, M.Serizawa Outline Background
More informationATSC Digital Television Standard: Part 6 Enhanced AC-3 Audio System Characteristics
ATSC Digital Television Standard: Part 6 Enhanced AC-3 Audio System Characteristics Document A/53 Part 6:2010, 6 July 2010 Advanced Television Systems Committee, Inc. 1776 K Street, N.W., Suite 200 Washington,
More informationMOBILE DIGITAL TELEVISION. never miss a minute
MOBILE DIGITAL TELEVISION never miss a minute About Mobile DTV The Power of Local TV on the Go Mobile Digital Television (DTV) represents a significant new revenue stream for the broadcasting industry
More informationBridging the Gap Between CBR and VBR for H264 Standard
Bridging the Gap Between CBR and VBR for H264 Standard Othon Kamariotis Abstract This paper provides a flexible way of controlling Variable-Bit-Rate (VBR) of compressed digital video, applicable to the
More informationDigital Radio Status in Japan. ISDB-T: Integrated Services Digital Broadcast Terrestrial
Digital Radio Status in Japan ISDB-T: Integrated Services Digital Broadcast Terrestrial Kenwood Corporation Shoichi Suzuki Senior Specialist Advanced Technologies Development Dep. Strategic Technologies
More informationSatellite-Digital Multimedia Broadcasting (DMB) Terminal of Samsung
Satellite-Digital Multimedia Broadcasting (DMB) Terminal of Samsung 오현석삼성전자 s910.oh@samsung.com Contents Overview of DMB systems DMB Standards & Services DMB Network Satellite DMB Terrestrial DMB Satellite
More informationContents on Demand Architecture and Technologies of Lui
Contents on Demand Architecture and Technologies of Lui ISOZUMI Atsunori, KAMIMURA Tomohiko, KUROIWA Minoru, SAKAMOTO Susumu, CHIBA Taneaki Abstract has developed Home Server PC Lui SX, which is a PC incorporating
More informationRecent topics on Digital Terrestrial TV Broadcasting in Japan
Recent topics on Digital Terrestrial TV Broadcasting in Japan Atsumi SUGIMOTO Consultant@ ARIB Today s Topics What is? Update of Digital Terrestrial Television Broadcasting (DTTB) in Japan Service Features
More informationFLEXIBLE SWITCHING AND EDITING OF MPEG-2 VIDEO BITSTREAMS
ABSTRACT FLEXIBLE SWITCHING AND EDITING OF MPEG-2 VIDEO BITSTREAMS P J Brightwell, S J Dancer (BBC) and M J Knee (Snell & Wilcox Limited) This paper proposes and compares solutions for switching and editing
More informationDigital Video Engineering Professional Certification Competencies
Digital Video Engineering Professional Certification Competencies I. Engineering Management and Professionalism A. Demonstrate effective problem solving techniques B. Describe processes for ensuring realistic
More informationContent storage architectures
Content storage architectures DAS: Directly Attached Store SAN: Storage Area Network allocates storage resources only to the computer it is attached to network storage provides a common pool of storage
More informationA Modified Static Contention Free Single Phase Clocked Flip-flop Design for Low Power Applications
JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE, VOL.8, NO.5, OCTOBER, 08 ISSN(Print) 598-657 https://doi.org/57/jsts.08.8.5.640 ISSN(Online) -4866 A Modified Static Contention Free Single Phase Clocked
More informationError Resilient Video Coding Using Unequally Protected Key Pictures
Error Resilient Video Coding Using Unequally Protected Key Pictures Ye-Kui Wang 1, Miska M. Hannuksela 2, and Moncef Gabbouj 3 1 Nokia Mobile Software, Tampere, Finland 2 Nokia Research Center, Tampere,
More informationIEEE Broadband Wireless Access Working Group <http://ieee802.org/16>
2004-01-13 IEEE C802.16-03/87r1 Project Title Date Submitted Source(s) Re: Abstract Purpose Notice Release Patent Policy and Procedures IEEE 802.16 Broadband Wireless Access Working Group
More informationMicrowave PSU Broadcast DvB Streaming Network
Microwave PSU Broadcast DvB Streaming Network Teletechnika Ltd. is in the mainstream of telecommunication since 1990 Main profile of the company Development Manufacturing Maintenance Segments Microwave
More informationDTE-1000 MPEG2 SD ENCODER
DTE-1000 MPEG2 SD ENCODER MPEG2 system with IP and ASI output Technical documentation/instruction set/software manual Composed by: Merkl Tamás, Körmendi Ferenc, Gyebnár Zoltán Teletechnika Ltd. 7th Edition
More informationENGINEERING COMMITTEE Digital Video Subcommittee SCTE
ENGINEERING COMMITTEE Digital Video Subcommittee SCTE 138 2009 STREAM CONDITIONING FOR SWITCHING OF ADDRESSABLE CONTENT IN DIGITAL TELEVISION RECEIVERS NOTICE The Society of Cable Telecommunications Engineers
More informationNew Standards That Will Make a Difference: HDR & All-IP. Matthew Goldman SVP Technology MediaKind (formerly Ericsson Media Solutions)
New Standards That Will Make a Difference: HDR & All-IP Matthew Goldman SVP Technology MediaKind (formerly Ericsson Media Solutions) HDR is Not About Brighter Display! SDR: Video generally 1.25x; Cinema
More informationIntroduction of Digital Data Broadcasting Service in Korea
Digital Broadcasting Research Division Broadcasting Media Research Group Introduction of Digital Data Broadcasting Service in Korea 2004. 12. 7. Gun Bang, Jin Soo Choi, YoungJu Lee, JiHoon Choi Broadcasting
More informationDTT Technology for Rural Communities Alerting
G. Rascioni g.rascioni@univpm.it E. Gambi e.gambi@univpm.it S. Spinsante s.spinsante@univpm.it D. Falcone d.falcone@univpm.it ABSTRACT The transition from analog to digital television broadcasting has
More informationSI/EPG For Digital Broadcasting Receiver. SI/EPG For Digital Broadcasting Receiver
SI/EPG For Digital Broadcasting Receiver DiBEG Digital Broadcasting Experts Group Heikan Izumi AGENDA Overview of SI ARIB SI Studio Systems Receiver Systems BS Digital Broadcasting Services Overview of
More informationNetwork Working Group Request for Comments: 3497 Category: Standards Track G. Goncher Tektronix A. Mankin Bell Labs, Lucent Corporation March 2003
Network Working Group Request for Comments: 3497 Category: Standards Track L. Gharai C. Perkins USC/ISI G. Goncher Tektronix A. Mankin Bell Labs, Lucent Corporation March 2003 RTP Payload Format for Society
More informationIssue 67 - NAB 2008 Special
Sensor NEWS FROM PIXELMETRIX Get Ready for Next Generation TV Issue 67 - NAB 2008 Special HIGHLIGHTS Danny Wilson to speak at two conferences New! DVStation-Mini Lab Environment for IP Video Delivery Satellite
More informationStructure/Features of ISDB-T
ISDB-T technical seminar(2007) in Argentina Seminar #2 Structure/Features of ISDB-T June, 2007 Digital Broadcasting Expert Group () Japan Yasuo TAKAHASHI (Toshiba) 1. Structure of ISDB-T Contents (Features
More informationProspects of Digital Broadcasting and Convergence Services. - The Essential and Expanding Role of Broadcasting September 02, 2010
Prospects of Digital Broadcasting and Convergence Services - The Essential and Expanding Role of Broadcasting September 02, 2010 Keiya Motohashi Purpose of Digitalization Japan s Nation-wide IT Promotions
More informationService feature of ISDB-T Current and Future
Service feature of ISDB-T Current and Future SET 2006 6 Congresso AUGUST 24th,2006 DiBEG Japan Yoshiki MARUYAMA tv asahi Contents Current situation of ISDB-T Current service of ISDB-T Future service of
More informationSERIES J: CABLE NETWORKS AND TRANSMISSION OF TELEVISION, SOUND PROGRAMME AND OTHER MULTIMEDIA SIGNALS Digital transmission of television signals
International Telecommunication Union ITU-T J.381 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (09/2012) SERIES J: CABLE NETWORKS AND TRANSMISSION OF TELEVISION, SOUND PROGRAMME AND OTHER MULTIMEDIA
More informationEmergency Warning System for Broadcasting
Presentation 5 Emergency Warning System for Broadcasting 28 th. February 1 st. March, 2007 Jakarta, Indonesia JAPAN Kenichi TSUCHIDA (NHK) 1 Emergency Warning System for Broadcasting Remote activation
More information4T2 Content-Analyser
4T2 Content-Analyser RF and MPEG Transport Stream analyser application for the Windows operating system Advanced Broadcast Components Ltd. Wacholderstrasse 13 23795 Bad Segeberg www.4t2.eu @2018 Advanced
More informationSection 2 Structure of ISDB-T system
ISDB-T technical seminar(2007) in Brazil A. Structure of ISDB-T Standard in Japan Section 2 Structure of ISDB-T system June, 2007 Digital Broadcasting Expert Group () Japan Yasuo TAKAHASHI (Toshiba) 1
More informationITU/NBTC Conference on Digital Broadcasting 2017
ITU/NBTC Conference on Digital Broadcasting 2017 Bangkok, Thailand Dr. AMAL Punchihewa Director of Technology & Innovation, ABU Vice-Chair of World Broadcasting Union Technical Committee (WBU-TC) Co-Chair
More informationDigiPoints Volume 2. Student Workbook. Module 5 Headend Digital Video Processing
Headend Digital Video Processing Page 5.1 DigiPoints Volume 2 Module 5 Headend Digital Video Processing Summary In this module, students learn engineering theory and operational information about Headend
More informationFLAC A/V LOSSLESS CODED SIGNALS CN /2/2019 FLAC A/V LOSSLESS CODED SIGNALS US /16/2019 FLAC A/V. AAC (ADTS Transport); DTS XLL A/V
CHOOSING BETWEEN LOSSLESS AND NOT FLAC LOSSLESS CODED SIGNALS CN99800722.6 3/2/2019 CHOOSING BETWEEN LOSSLESS AND NOT FLAC LOSSLESS CODED SIGNALS US6522695 3/16/2019 CHOOSING BETWEEN LOSSLESS AND NOT FLAC
More informationITU-T Y Functional framework and capabilities of the Internet of things
I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T Y.2068 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (03/2015) SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL
More informationMotion Video Compression
7 Motion Video Compression 7.1 Motion video Motion video contains massive amounts of redundant information. This is because each image has redundant information and also because there are very few changes
More informationPolicy and Digitalization Process in Japan
ISDB-T Seminar Session 1 Policy and Digitalization Process in Japan 28th-29th August, 2006 In Caracas JAPAN Yasuo TAKAHASHI (Toshiba) 1 Topics 1. Outline of Broadcasting in Japan 2. Schedule and Policy
More informationMetadata for Enhanced Electronic Program Guides
Metadata for Enhanced Electronic Program Guides by Gomer Thomas An increasingly popular feature for TV viewers is an on-screen, interactive, electronic program guide (EPG). The advent of digital television
More informationMyM-3S Micro Master. Installation Guide. English. design for TV
MyM-3S Micro Master Installation Guide design for TV 1 CONTENT 1. Introduction 2. Unpacking the unit 3. Connections and indications 4. IP settings 5. Menus and settings 5.1 Overview menu 5.2 Input settings
More informationB. The specified product shall be manufactured by a firm whose quality system is in compliance with the I.S./ISO 9001/EN 29001, QUALITY SYSTEM.
VideoJet 8000 8-Channel, MPEG-2 Encoder ARCHITECTURAL AND ENGINEERING SPECIFICATION Section 282313 Closed Circuit Video Surveillance Systems PART 2 PRODUCTS 2.01 MANUFACTURER A. Bosch Security Systems
More informationITU-T Y.4552/Y.2078 (02/2016) Application support models of the Internet of things
I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Y.4552/Y.2078 (02/2016) SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET
More informationConfiguring the R&S BTC for ATSC 3.0 Application Note
Configuring the R&S BTC for ATSC 3.0 Application Note Products: R&S BTC R&S BTC-K20 R&S BTC-K520 R&S BTC-PK520 The R&S Broadcast Test Center BTC supports the new Next Generation Broadcast Standard ATSC
More informationATSC Standard: A/342 Part 1, Audio Common Elements
ATSC Standard: A/342 Part 1, Common Elements Doc. A/342-1:2017 24 January 2017 Advanced Television Systems Committee 1776 K Street, N.W. Washington, DC 20006 202-872-9160 i The Advanced Television Systems
More informationUncompressed 8K Video Streaming over 100Gbps Experimental Network
Uncompressed 8K Video Streaming over 100Gbps Experimental Network Hiroyuki Kimiyama NTT Network Innova on Laboratories (c) Copyright: Nippon Telegraph and Telephone, 2014 1 Outline What is 8K video? Mo
More informationENGINEERING COMMITTEE Digital Video Subcommittee AMERICAN NATIONAL STANDARD. HEVC Video Constraints for Cable Television Part 2- Transport
* ENGINEERING COMMITTEE Digital Video Subcommittee AMERICAN NATIONAL STANDARD ANSI/SCTE 215-2 2015 HEVC Video Constraints for Cable Television Part 2- Transport TABLE OF CONTENTS 1.0 SCOPE... 1 1.1 BACKGROUND
More informationIEEE Broadband Wireless Access Working Group <
2004-03-14 IEEE C802.16-04/31r1 Project Title IEEE 802.16 Broadband Wireless Access Working Group BPSK Modulation for IEEE 802.16 WirelessMAN TM OFDM Date Submitted Source(s) 2004-03-14
More informationModule 8 VIDEO CODING STANDARDS. Version 2 ECE IIT, Kharagpur
Module 8 VIDEO CODING STANDARDS Lesson 24 MPEG-2 Standards Lesson Objectives At the end of this lesson, the students should be able to: 1. State the basic objectives of MPEG-2 standard. 2. Enlist the profiles
More informationFrequently Asked Questions: Cable TV and Next Generation CAP EAS
Frequently Asked Questions: Cable TV and Next Generation CAP EAS 1. What has changed in Federal Communications Commission EAS rules, and how will that affect Cable Television Operations? On July 12, 2007,
More informationLaboratory platform DVB-T technology v1
Laboratory platform DVB-T technology v1 1. Theoretical notions Television can be defined as a set of principles, methods and techniques used for transmitting moving images. The essential steps in television
More informationMPEG-2 MPEG-2 4:2:2 Profile its use for contribution/collection and primary distribution A. Caruso L. Cheveau B. Flowers
Profile its use for contribution/collection and primary distribution A. Caruso CBC L. Cheveau EBU Technical Department B. Flowers ex. EBU Technical Department This article 1 investigates the use of technology
More informationA low-power portable H.264/AVC decoder using elastic pipeline
Chapter 3 A low-power portable H.64/AVC decoder using elastic pipeline Yoshinori Sakata, Kentaro Kawakami, Hiroshi Kawaguchi, Masahiko Graduate School, Kobe University, Kobe, Hyogo, 657-8507 Japan Email:
More informationR&D for NGTB in JPN. Kenichi Murayama. Senior Research Engineer STRL, NHK. Toward UHD broadcasting
R&D for NGTB in JPN Toward UHD broadcasting Kenichi Murayama Senior Research Engineer STRL, NHK Agenda 2 Toward UHD broadcasting UHD Satellite Broadcasting UHD Terrestrial Broadcasting Schedule Previous
More informationAn FPGA Implementation of Shift Register Using Pulsed Latches
An FPGA Implementation of Shift Register Using Pulsed Latches Shiny Panimalar.S, T.Nisha Priscilla, Associate Professor, Department of ECE, MAMCET, Tiruchirappalli, India PG Scholar, Department of ECE,
More informationR&S AVG050 DVB Satellite Receiver Specifications
AVG050-SAT_dat-sw_en_3606-8508-22_v0400_cover.indd 1 Data Sheet 04.00 Broadcast and Media R&S AVG050 DVB Satellite Receiver Specifications 14.11.2014 14:40:08 CONTENTS Definitions... 3 Specifications...
More informationENGINEERING COMMITTEE Digital Video Subcommittee. American National Standard
ENGINEERING COMMITTEE Digital Video Subcommittee American National Standard ANSI/SCTE 127 2007 Carriage of Vertical Blanking Interval (VBI) Data in North American Digital Television Bitstreams NOTICE
More informationTERRESTRIAL broadcasting of digital television (DTV)
IEEE TRANSACTIONS ON BROADCASTING, VOL 51, NO 1, MARCH 2005 133 Fast Initialization of Equalizers for VSB-Based DTV Transceivers in Multipath Channel Jong-Moon Kim and Yong-Hwan Lee Abstract This paper
More informationVideo System Characteristics of AVC in the ATSC Digital Television System
A/72 Part 1:2014 Video and Transport Subsystem Characteristics of MVC for 3D-TVError! Reference source not found. ATSC Standard A/72 Part 1 Video System Characteristics of AVC in the ATSC Digital Television
More information