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11. 发明专利

JP2005333473A Radio terminal for switching transmission media, and method for switching transmission media 有权
标题翻译：用于切换传输媒体的无线电终端和用于切换传输媒体的方法
公开(公告)号：JP2005333473A
公开(公告)日：2005-12-02
申请号：JP2004150654
申请日：2004-05-20
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： ISO NAOHIKO , SAITO MASANORI
IPC分类号： H04B1/16 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To provide a radio terminal capable of selecting the optimum transmission medium in accordance with the quality of a transmission signal, being applied to a plurality of broadcasting and communication systems and improving convenience, and to provide a transmission media switching method.
SOLUTION: A received signal quality determining part 31 calculates a new received signal level on the basis of an inputted received signal level and a stored conversion value and outputs quality information being the new received signal level. A transmission medium selecting/control part 32 selects a transmission medium on the basis of inputted quality information, stored selection algorithm and reference information such as priority. In addition, the transmission medium selecting/control part 32 specifies modulation and demodulation software and downloads the modulation and demodulation software from a modulation and demodulation software storing part 33 to software radio modulating and demodulating parts 10 and 20.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够根据传输信号的质量选择最佳传输介质的无线终端，应用于多个广播和通信系统并提高方便性，并提供传输介质切换方式。解决方案：接收信号质量确定部分31基于输入的接收信号电平和存储的转换值来计算新的接收信号电平，并输出作为新的接收信号电平的质量信息。传输介质选择/控制部分32基于输入的质量信息，存储的选择算法和诸如优先级的参考信息来选择传输介质。此外，传输介质选择/控制部分32指定调制和解调软件，并将调制和解调软件从调制和解调软件存储部分33下载到软件无线电调制和解调部分10和20.版权所有（C ）2006年，日本特许厅和NCIPI

12. 发明专利

JP2975932B1 失效
公开(公告)号：JP2975932B1
公开(公告)日：1999-11-10
申请号：JP19392798
申请日：1998-07-09
申请人： NIPPON HOSO KYOKAI , JISEDAI DEJITARU TEREBIJON HOSO SHISUTEMU KENKYUSHO KK
发明人： UEHARA MICHIHIRO , TAKADA MASAYUKI , TSUCHIDA KENICHI , KURODA TOORU , IKEDA TETSUOMI , OKAMURA HIROAKI , SAITO MASANORI
IPC分类号： H04J11/00 , H04J3/00 , H04L12/70

13. 发明专利

JP2945670B2 失效
公开(公告)号：JP2945670B2
公开(公告)日：1999-09-06
申请号：JP4421888
申请日：1988-02-29
申请人： NIPPON HOSO KYOKAI
发明人： SAITO MASANORI , KIMURA TAKESHI , NANBA SEIICHI
IPC分类号： H04K1/00 , G06F9/445 , G06F13/00 , H04B1/16 , H04H20/00 , H04H20/91 , H04H60/25 , H04L1/00 , H04L9/12 , H04L9/14 , H04L9/16 , H04L9/36 , H04L29/06 , H04L29/08 , H04H1/00

14. 发明专利

JP2904986B2 失效
公开(公告)号：JP2904986B2
公开(公告)日：1999-06-14
申请号：JP1706792
申请日：1992-01-31
申请人： NIPPON HOSO KYOKAI
发明人： SAITO MASANORI , KURODA TOORU , MORYAMA SHIGEKI , SAITO TOMOHIRO , TAKADA MASAYUKI , YAMADA TSUKASA
IPC分类号： H04J1/20 , H04J11/00 , H04J99/00 , H04L27/26
摘要： A digital signal transmission using OFDM modulation scheme in which the valid transmission data can be reproduced without requiring a recovery of the carriers at a receiver side. On a transmitter side, the transmission data sequence in which predetermined reference data for each carrier are placed among valid transmission data is modulated according to an orthogonal frequency division multiplexing (OFDM) modulation scheme using a plurality of carriers and obtained OFDM transmission signals are transmitted. On a receiver side, the received OFDM transmission signals are demodulated to obtain received data sequence containing valid received data and received reference data, and the valid transmission data are estimated from the received data sequence according to the valid received data, the received reference data, and the predetermined reference data for each carrier.

15. 发明专利

JP2771313B2 失效
公开(公告)号：JP2771313B2
公开(公告)日：1998-07-02
申请号：JP14607890
申请日：1990-06-06
申请人： NIPPON HOSO KYOKAI , HITACHI MAKUSERU KK
发明人： SAITO MASANORI , YOSHIMURA TOSHIRO , KIMURA TAKESHI , TAKAMORI HIROSHI , KODERA JUJI , KITSUTA KENICHI
IPC分类号： B42D15/10 , G06K17/00 , G06K19/07

16. 发明专利

JP2004158968A Receiver for receiving a plurality of media 有权
公开(公告)号：JP2004158968A
公开(公告)日：2004-06-03
申请号：JP2002321189
申请日：2002-11-05
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： SAITO MASANORI , ISO NAOHIKO
IPC分类号： H04B1/16 , H04H20/00 , H04H40/18 , H04N5/44 , H04N17/00
摘要： PROBLEM TO BE SOLVED: To provide a receiver for receiving a plurality of media, capable of improving the reliability and functions for received signals by using the plurality of media in combination.
SOLUTION: A transmission medium to be used for reception is selected on the basis of information about the result of evaluation of the quality of received signals, and about an order of reception priority of the plurality of transmission media and control information for selecting the transmission media to be used for reception according to a predetermined algorithm. By doing this, the optimum transmission medium can always be used for reception.
COPYRIGHT: (C)2004,JPO

17. 发明专利

JP2883238B2 失效
公开(公告)号：JP2883238B2
公开(公告)日：1999-04-19
申请号：JP2130592
申请日：1992-02-06
申请人： NIPPON HOSO KYOKAI
发明人： SAITO MASANORI , KURODA TOORU , MORYAMA SHIGEKI , SAITO TOMOHIRO , TAKADA MASAYUKI , YAMADA TSUKASA
IPC分类号： H04J1/00 , H04J11/00 , H04L27/20 , H04L27/22

18. 发明专利

JP2847206B2 失效
公开(公告)号：JP2847206B2
公开(公告)日：1999-01-13
申请号：JP1087992
申请日：1992-01-24
申请人： SHAAPU KK , NIPPON HOSO KYOKAI
发明人： MATSUMOTO YASUMASA , KOBAYASHI SADAO , TAKADA MASAYUKI , SAITO TOMOHIRO , KURODA TOORU , MORYAMA SHIGEKI , SAITO MASANORI , YAMADA TSUKASA , ISOBE TADASHI
IPC分类号： H04B7/08 , H04H20/00 , H04H40/18 , H04H60/11 , H04H60/32 , H04L1/00 , H04L1/06

19. 发明专利

JP2731722B2 失效
公开(公告)号：JP2731722B2
公开(公告)日：1998-03-25
申请号：JP13838694
申请日：1994-05-26
申请人： NIPPON DENKI KK , NIPPON HOSO KYOKAI
发明人： SAITO MASANORI , SATO TOORU
IPC分类号： H03L7/00 , H04J11/00 , H04L27/26
摘要： In a receiver for an OFDM modulated transmission signal including at least one synchronizing symbol in each frame, the synchronizing symbol is located by stepwise shifting a window along a reception sample sequence to make a cross-correlation calculator (55) calculate cross-correlation values between a stored pattern produced from a pattern memory (53) and sequence portions picked up by the window, a maximum selector (57, 59) select two successive maxima of the cross-correlation values at a time interval substantially equal to a frame period, and a controllable clock generator (61-65) generate a clock sequence at the time interval for use in sampling the sample sequence. On a transmitter side, the at least one synchronizing symbol may either be preceded by a null period or be a main synchronizing symbol preceded by an auxiliary synchronizing symbol for use in roughly defining ranges in which the window should be shifted.

20. 发明专利

JP2725924B2 失效
公开(公告)号：JP2725924B2
公开(公告)日：1998-03-11
申请号：JP30178091
申请日：1991-11-18
申请人： NIPPON HOSO KYOKAI
发明人： KURODA TOORU , SAITO MASANORI , MORYAMA SHIGEKI , SAITO TOMOHIRO , TAKADA MASAYUKI , YAMADA TSUKASA
IPC分类号： H04H1/00 , H04H20/47 , H04N7/08 , H04N7/081 , H04H5/00

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