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1. 发明授权

US3914535A Receiver for a still picture broadcasting signal 失效
标题翻译：接收机用于静止图像广播信号
公开(公告)号：US3914535A
公开(公告)日：1975-10-21
申请号：US39316373
申请日：1973-08-30
申请人： HITACHI LTD
发明人： TAKEZAWA TERUHIRO , MASUDA MICHIO , NABEYAMA HIROAKI , MOHRI KATSUO , FUKUDA MASAAKI , KAYANO TATSUO , UEHARA TAKASHI , SAWABE EIICHI , YOSHINO TAKEHIKO , YAMANE HISAKICHI , YANAGIMACHI AKIO
IPC分类号： H04N7/08 , H04N1/00 , H04N7/081 , H04N7/12 , H04N5/44
CPC分类号： H04N1/00098
摘要： A receiver for receiving a composite signal including a first information signal, such as for instance, a number of video signals representing a number of still pictures, second information signal, such as for instance, pulse code modulated time division multiplex mutli-channel audio signals, control signal including information for processing above mentioned two signals in the receiver, and necessary synchronizing signals required for the reproduction of the above mentioned three signals being transmitted sequentially in a predetermined sequence, wherein during transmission period of said second information signal the signals to be reproduced in the same period are inserted in the composite signal as real signals and signals to be reproduced in the period when said second information signal is not transmitted are inserted in the composite signal as memory signals, and for continuously reproducing said second information signal which has been selected. The receiver comprises a means for selecting said control signal, a means for producing a signal for identifying real or memory of said second information signal by using the above mentioned selected control signal and for designating the same, a means for gating the real signal and the memory signal, a memory means for memorizing the memory signal, a means for supplying output signal of the designating means to said gate means, a means for storing the memory signal gated out by the gate means in the memory means and for reproducing the real signal immediately, and a means for reproducing the stored memory signal after delaying the same so as to form a continuous reproduced signal succeeding to the directly reproduced real signal.
摘要翻译：一种用于接收包括第一信息信号的复合信号的接收机，例如表示静止图像数量的视频信号的数量，第二信息信号，例如脉冲编码调制的时分复用多声道音频信号包括用于处理上述接收机中的上述两个信号的信息的控制信号和按预定顺序依次发送上述三个信号的再现所需的必要的同步信号，其中在所述第二信息信号的传输周期期间将信号在同一时期再现的复合信号被插入复合信号中，作为在不发送所述第二信息信号的时段中要再现的实信号和信号，作为存储信号插入复合信号中，并且用于连续地再现所有第二信息信号被选中。接收机包括用于选择所述控制信号的装置，用于通过使用上述所选择的控制信号产生用于识别所述第二信息信号的实际或存储器的信号的装置，并用于指定该装置，用于选通实信号和存储器信号，用于存储存储器信号的存储器装置，用于向所述门装置提供指定装置的输出信号的装置，用于将由门装置选通的存储信号存储在存储装置中并用于再现实信号的装置以及用于在延迟之后再现所存储的存储器信号以便形成直接再现的实际信号之后的连续再现信号的装置。

2. 发明授权

US3903356A Apparatus for reproducing synchronizing signals 失效
标题翻译：用于再现同步信号的装置
公开(公告)号：US3903356A
公开(公告)日：1975-09-02
申请号：US46088874
申请日：1974-04-15
申请人： HITACHI LTD
发明人： WATATANI YOSHIZUMI , MOHRI KATSUO , NABEYAMA HIROAKI , FUKUDA MASAAKI , KAYANO TATSUO , YOSHINO TAKEHIKO , SAWABE EIICHI , UEHARA TAKASHI
IPC分类号： H04N5/06 , H04J3/06 , H04N5/08 , H04N7/56
CPC分类号： H04N7/56 , H04J3/0605
摘要： An apparatus for reproducing a plurality of synchronizing signals from a composite signal including said plurality of synchronizing signals of different repetition frequencies and phases. The composite signal includes first and second synchronizing signals which are included in video and audio signals at different repetition frequencies and are necessary for reproducing the video and audio signals arranged in accordance with a predetermined sequence. These first and second synchronizing signals are so included that these phases are identical with each other at a common division frequency of these synchronizing signal frequencies. The composite signal further includes a third synchronizing signal which is included at least in boundaries between the video and audio signals. This third synchronizing signals has a frequency which is equal to said common division repetition frequency of said first and second synchronizing signals and is included at a position where the phases of the first and second synchronizing signals are identical with each other. The apparatus for reproducing the above mentioned synchronizing signals comprises means for detecting and reproducing a predetermined one of said first and second synchronizing signals from the composite signal, means for detecting and reproducing said third synchronizing signal and means for reproducing the other of said first and second synchronizing signals with using the previously reproduced two synchronizing signals.
摘要翻译：一种用于从包括不同重复频率和相位的所述多个同步信号的复合信号再现多个同步信号的装置。复合信号包括以不同重复频率包括在视频和音频信号中的第一和第二同步信号，并且对于再现根据预定顺序排列的视频和音频信号是必需的。这些第一和第二同步信号如此被包括，这些相位在这些同步信号频率的公共分频下彼此相同。复合信号还包括至少包括在视频和音频信号之间的边界中的第三同步信号。该第三同步信号具有等于所述第一和第二同步信号的所述公共分频重复频率的频率，并且被包括在第一和第二同步信号的相位彼此相同的位置处。用于再现上述同步信号的装置包括用于从复合信号检测和再现所述第一和第二同步信号中的预定一个的装置，用于检测和再现所述第三同步信号的装置和用于再现所述第一和第二同步信号中的另一个的装置使用先前再现的两个同步信号同步信号。

3. 发明授权

US3865973A Still picture broadcasting receiver 失效
标题翻译：静态图像广播接收器
公开(公告)号：US3865973A
公开(公告)日：1975-02-11
申请号：US36180273
申请日：1973-05-18
申请人： HITACHI LTD
发明人： MASUDA MICHIO , MOHRI KATSUO , NABEYAMA HIROAKI , TAKEZAWA TERUHIRO , YAMANE HISAKICHI , SAWABE EIICHI , YANAGIMACHI AKIO , UEHARA TAKASHI , YOSHINO TAKEHIKO
IPC分类号： H04J3/06 , H04J3/16 , H04N1/00 , H04N5/04 , H04N5/08
CPC分类号： H04J3/06 , H04J3/1605 , H04N1/00098
摘要： A receiver for a composite signal consisting of video and audio multiplex signals intermittently transmitted in a predetermined sequence and having synchronizing signals with a blanking period and different repetition frequencies in the video signal period and the audio multiplex signal period, wherein the synchronizing signals are so composed as to have an identical mode at least for a part thereof at a common measure frequency of the two different repetition frequencies. The receiver comprises a gate circuit, a coincidence circuit for producing a coincidence signal when a signal having a mode identical with the mode of the synchronizing signal at the common measure frequency is supplied, a coincidence confirming circuit having a certain level exceeding a predetermined level when said coincidence signal is supplied regularly, a means for producing first and second signals having a phase controlled by said coincidence signal and having said two repetition frequencies respectively and a third signal having frequency of the common measure or common multiple frequency of said two repetition frequencies, and a means for operating a gate circuit by said third signal only when a coincidence confirming signal is supplied and for controlling said gate circuit to pass the composite signal during a period. The receiver further comprises means for detecting a blanking period by said third signal and a means for controlling gain of the receiver in accordance with the detected level. The receiver still further comprises means for fixing the level of the blanking period by using a part of the blanking period a predetermined fixed level.
摘要翻译：一种由视频和音频复用信号组成的复合信号的接收机，其以预定的顺序间歇地发送，并且在视频信号周期和音频多路复用信号周期中具有消隐周期和不同重复频率的同步信号，其中同步信号如此组成至少在两个不同的重复频率的公共测量频率下对其一部分具有相同的模式。接收机包括门电路，当提供具有与公共测量频率的同步信号的模式相同的模式的信号时产生符合信号的符合电路，具有一定电平超过预定电平的符合确认电路，所述符合信号被规律地提供，用于产生具有由所述符合信号控制的相位并且具有所述两个重复频率的第一和第二信号的装置以及具有所述两个重复频率的共同测量或公共多频的频率的第三信号，以及仅在提供一致性确认信号时用于通过所述第三信号操作门电路的装置，并且用于在一段时间期间控制所述门电路通过所述复合信号。接收机还包括用于通过所述第三信号检测消隐周期的装置和用于根据检测到的电平来控制接收机的增益的装置。接收器还包括用于通过使用消隐周期的一部分来固定消隐周期的电平的装置，该预定固定电平。

4. 发明授权

US3859458A Receiver for receiving a still picture broadcasting signal 失效
标题翻译：接收图像广播信号的接收器
公开(公告)号：US3859458A
公开(公告)日：1975-01-07
申请号：US39316273
申请日：1973-08-30
申请人： HITACHI LTD
发明人： TAKEZAWA TERUHIRO , MASUDA MICHIO , NABEYAMA HIROAKI , MOHRI KATSUO , FUKUDA MASAAKI , KAYANO TATSUO , YANAGIMACHI AKIO , YAMANE HISAKICHI , SAWABE EIICHI , UEHARA TAKASHI , YOSHINO TAKEHIKO
IPC分类号： H04N7/08 , G09B5/12 , H04N1/00 , H04N7/081 , H04N5/44
CPC分类号： G09B5/12 , H04N1/00098
摘要： A receiver for receiving a still picture broadcasting signal consisting of a composite signal comprising a video signal representing a plurality of still pictures, an audio signal in the form of a pulse code modulated and time division multiplexed signal representing a plurality of sounds, a control signal including information for processing said video and audio signals at a receiver end and a synchronizing signal necessary for reproducing said video, audio and control signals at the receiver end, said signals being arranged in a predetermined sequence at a period of a predetermined time interval, said receiver extracting said control signal and desired still pictures and sounds being accurately extracted and displayed with the aid of the extracted control signal. Said control signal comprises a program material identification signal consisting of a video identification number for identifying a video signal of each still picture and of an audio channel number identifying an audio signal inserted in each audio channel, a first control signal for selecting a particular combination from a number of combinations of said still pictures and sounds and controlling progress of reproduction in accordance with a predetermined rule and a second control signal for denoting a combination of a still picture and a sound inserted in a channel, which combination constitutes a set of program material.
摘要翻译：一种用于接收由包括表示多个静止图像的视频信号的复合信号组成的静止图像广播信号的接收机，以脉冲编码调制的形式的音频信号和表示多个声音的时分复用信号，控制信号包括用于在接收机端处理所述视频和音频信号的信息以及在接收机端再现所述视频，音频和控制信号所必需的同步信号，所述信号以预定的时间间隔以预定的顺序排列，所述接收器提取所述控制信号，借助所提取的控制信号精确地提取和显示期望的静止图像和声音。所述控制信号包括由用于识别每个静止图像的视频信号的视频标识号和识别插入每个音频通道中的音频信号的音频通道号组成的节目素材识别信号，用于从所述静止图像和声音的组合的数量，并且根据预定规则控制再现的进行，以及用于表示插入在频道中的静止图像和声音的组合的第二控制信号，该组合构成一组节目素材。

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