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公开(公告)号:US4849990A
公开(公告)日:1989-07-18
申请号:US30826
申请日:1987-02-04
IPC分类号: H04L1/02
CPC分类号: H04L1/02
摘要: The present invention provides two branches of a base station transmitter and a base station receiver, respectively, and inserts a delay circuit for ensuring a delay time difference between D and U waves required to obtain the best bit error rate for a DSK system, BPSK-RZ system, QPSK-RZ system or the like, into each system of the transmitter and the receiver, respectively, or into either the transmitter or the receiver of each system, thereby efficiently improving the bit error rate.
摘要翻译: PCT No.PCT / JP85 / 00513 Sec。 371日期1987年2月4日 102(e)日期1987年2月4日PCT提交1985年9月13日PCT公布。 出版物WO86 / 07514 日期:1986年12月18日。本发明分别提供基站发射机和基站接收机的两个分支,并插入一个延迟电路,用于确保获得最佳误码率所需的D波和U波之间的延迟时间差 用于DSK系统,BPSK-RZ系统,QPSK-RZ系统等,分别插入到发射机和接收机的每个系统中,或者进入每个系统的发射机或接收机,从而有效地提高误码率。
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公开(公告)号:US07526183B2
公开(公告)日:2009-04-28
申请号:US10203605
申请日:2001-02-09
IPC分类号: H04N5/91
CPC分类号: H04N5/4448 , H04N5/4401 , H04N5/45 , H04N5/76 , H04N7/0122 , H04N21/4147 , H04N21/4316 , H04N21/4325 , H04N21/4334 , H04N21/4345 , H04N21/4347 , H04N21/44016 , H04N21/440281 , H04N21/44222 , H04N21/4532 , H04N21/454 , H04N21/482 , H04N21/812 , H04N21/8455
摘要: A receiving terminal device which provides viewers with broadcasting radio waves from broadcasting stations as programs and in which, when a program switching is executed while a first program is being provided and a program is switched to a second program, the second program is provided and video recording of the first program is started, and when the program is switched back to the first program after the program is switched to the second program, the recorded first program is provided. Then, the receiving terminal device, when the first program is selected again, executes catch-up reproduction of the recorded first program in the manner that the position of recording and reproducing the first program catch up with a position in which the first program is being broadcast by the broadcasting station. Thus, even in case that a switching of a program selection is executed, a broadcasting service without failure of program contents viewing can be realized.
摘要翻译: 一种接收终端设备,其向观众提供来自广播电台的广播电波作为节目,并且其中当在提供第一节目并且将节目切换到第二节目时执行节目切换时,提供第二节目并且视频 开始第一程序的记录,并且当在程序切换到第二程序之后程序切换回第一程序时,提供所记录的第一程序。 然后,接收终端装置再次选择第一节目时,以记录和再现第一节目的位置追赶第一节目的位置的方式执行所记录的第一节目的追赶再现 广播电台播出。 因此,即使在执行节目选择的切换的情况下,也可以实现无节目内容观看的广播服务。
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