All issues
Predecessor
38.14
Displaying 1-14 of 14 articles from this issue
- |<
- <
- 1
- >
- >|
-
Article type: Cover
Pages Cover1-
Published: February 28, 2014
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (10K) -
Article type: Index
Pages Toc1-
Published: February 28, 2014
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (42K) -
Shinichi SUZUKI, Hiroyuki HAMAZUMIArticle type: Article
Session ID: BCT2014-46
Published: February 28, 2014
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe have been developing hundreds of Mbps transmission technologies using Multiple-Input Multiple-Output (MIMO) in 42-GHz band for SHV (Super Hi-Vision) transmission. In this report, we consider an application of cross-polarization to 4×4MIMO multiplexing for the purpose of downsizing the transmit device and improving the transmit performance. Computer simulations under a 4×4MIMO channel which correlation is more than 0.8 that a BER performance is improved by using cross-polarization and we have found a suitable cross polarization power ratio (XPR) to maximize the effectiveness of the improvement.View full abstractDownload PDF (556K) -
Masafumi NAGASAKA, Susumu NAKAZAWA, Shoji TANAKAArticle type: Article
Session ID: BCT2014-47
Published: February 28, 2014
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSA 12-GHz (11.7 to 12.75 GHz) band satellite service with orthogonal polarization is expected for transmission channels to deliver advanced broadcasting services such as 8K (Super Hi-Vision). A right- and left-circular polarized parabolic reflector antenna will make it possible to receive services provided over these orthogonal polarizations with a single reflector antenna. However, it is important to mitigate cross polarization interference to transmit large-capacity signals such as those for 8K programs with one transponder. To achieve sufficient cross polarization discernment throughout the 12-GHz band, we designed a dual-polarization microstrip antenna array, which we assumed would be used as a feed antenna for a 12-GHz band receiving reflector antenna. Simulation results showed the voltage standing wave ratio was less than 1.4 and the axial ratio was less than 0.6 dB throughout the 12-GHz band.View full abstractDownload PDF (694K) -
Jun TSUMOCHI, Fumiyasu SUGINOSHITA, Satoshi OKABEArticle type: Article
Session ID: BCT2014-48
Published: February 28, 2014
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe are developing a 120-GHz-band FPU that is wireless transmission system for the dual-green Super Hi-Vision (SHV) signal (24Gb/s). 120-GHz-FPU transmits uncompressed SHV signal with polarization multiplexing transmission using two pairs of 120GHz-band transmitters and receivers. We describe the influence of BER characteristics for 120-GHz-band FPU by interference of cross-polarization. We explain the link budget with the interference that is estimated from the radiation pattern of the antenna.View full abstractDownload PDF (4529K) -
Takuma Hiraiwa, Chiharu Tanaka, Nobuyuki YagiArticle type: Article
Session ID: BCT2014-49
Published: February 28, 2014
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSHybrid broadcasting started using HbbTV, YouView, and Hybridcast systems, and various new services, such as rich program-related contents distribution and catch-up service, are provided. Smart TVs connected to Internet services have been in the market, and services which use smartphone and tablet as a second screen are being provided. While these hybrid services are spread out, viewers' intention, what viewers expect for hybrid broadcasting, is not clear. Thus we had a questionnaire that collected viewers' intentions on hybrid broadcast by net research service, and reviewed direction of hybrid broadcasting.View full abstractDownload PDF (725K) -
Hisayuki OHMATA, Akitsugu BABA, Kinji MATSUMURA, Masaru TAKECHI, Keigo ...Article type: Article
Session ID: BCT2014-51
Published: February 28, 2014
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSNon-broadcast-oriented managed application is one of the important elements of advanced Hybridcast. This type of application facilitates the entry of third-party service providers into Hybridcast platform. This paper describes non-broadcast-oriented managed application services, system requirements, system modeling design and receiver architecture.View full abstractDownload PDF (4341K) -
Chigusa YAMAMURA, Yusei NISHIMOTO, Keigo MAJIMA, Toshio NAKAGAWAArticle type: Article
Session ID: BCT2014-52
Published: February 28, 2014
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSA technology of contents protection and access control which offers great flexibility and security is essential for advanced broadcasting services such as UHDTV. Especially, in order to promote a development of new business models, we need to consider a conditional access system which works in collaboration with web-services. In this paper, we discuss a license transmission scheme with communications functions for flexible conditional access. We also confirmed the feasibility of the proposed license transmission scheme with a prototype system.View full abstractDownload PDF (3568K) -
Tsukuru Kai, Kazunori Takahashi, Toru Fujihara, Yasuo Tsutsumi, Yukiko ...Article type: Article
Session ID: BCT2014-53
Published: February 28, 2014
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSThis paper describes the technique about 15.6m wide x 3.4m tall, 9,984 x 2,160 pixels, single panoramic sequence projection by synchronized triple 4K projectors lined up horizontally. Images captured with combination of synchronized quad 4K cameras lined up horizontally produce the final single images on screen through several process as panoramic composition, color grading, blending projection.View full abstractDownload PDF (7495K) -
Kazuhiro OTSUKI, Shuichi AOKI, Shinya TAKEUCHI, Shunji SUNASAKIArticle type: Article
Session ID: BCT2014-54
Published: February 28, 2014
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSAs the transport scheme on Super Hi-Vision satellite broadcasting systems, which would be launched in 2020, we have studied MPEG Media Transport (MMT), of which standardization has been finalized in MPEG, since it enables hybrid delivery using broadcasting and broadband networks. In Super Hi-Vision satellite broadcasting, it is required that transmitting data files in addition to video and audio and providing same services like the current digital broadcasting. In this report, we arrange the requirements as transport scheme from the assumed output from application layer and a necessary function as transport layer. We also study a specific method using MMT and describe the details.View full abstractDownload PDF (533K) -
Yoichi Suzuki, Kenichi Tsucnida, Yoshifumi Matsusaki, Akinori Hashimot ...Article type: Article
Session ID: BCT2014-55
Published: February 28, 2014
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSFrom May 2013, the Association of Radio Industries and Businesses (ARIB) and the Telecommunications Council have been studying a transmission system for Ultra-High Definition Television satellite broadcast according to inquiry No.2023 on the technical requirements for broadcasting systems. The proposed system is based on the TRANSMISSION SYSTEM FOR ADVANCED WIDE BAND DIGITAL SATELLITE BROADCASTING (ARIB STD-B44 Version 1.0) and improves transmission capacity by increasing symbol-rate and lowering roll-off factor. Aiming at evaluation of the proposed system, the ARIB study group for satellite digital broadcasting has conducted evaluation tests by using a prototype modem, which meets technical specification of the proposed system and can set 0.01 of roll-off factor. This paper reports the results of evaluation tests focusing on satellite transmission test via Communication Satellite (CS) and Broadcasting Satellite (BS).View full abstractDownload PDF (6512K) -
Article type: Appendix
Pages App1-
Published: February 28, 2014
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (81K) -
Article type: Appendix
Pages App2-
Published: February 28, 2014
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (81K) -
Article type: Appendix
Pages App3-
Published: February 28, 2014
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (81K)
- |<
- <
- 1
- >
- >|