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31. 发明授权

US5347304A Remote link adapter for use in TV broadcast data transmission system 失效
标题翻译：用于电视广播数据传输系统的远程链路适配器
公开(公告)号：US5347304A
公开(公告)日：1994-09-13
申请号：US98764
申请日：1993-07-28
申请人： Eduardo J. Moura , James C. Long
发明人： Eduardo J. Moura , James C. Long
IPC分类号： H04H20/30 , H04H60/15 , H04H60/80 , H04L12/28 , H04M11/08 , H04N1/00 , H04N7/088 , H04N7/173 , H04H1/00
CPC分类号： H04H20/30 , H04H60/15 , H04L12/2801 , H04L12/2856 , H04L12/2898 , H04M11/08 , H04N1/00098 , H04N7/088 , H04N7/173 , H04H60/80
摘要： A hybrid transmission system is provided to transmit and receive high-speed digital information in the form of variable length packets using standard television practices and components. The basic building block of this hybrid digital transmission system is the device at the remote location that receives the analog broadcast TV-like signal processed by a standard vestigial sideband video modulator. This device decodes the digital information from the signal and then passes it along as digital information to any form of a data terminal equipment or computer.
摘要翻译：提供了一种混合传输系统，用标准电视实践和组件以可变长度分组的形式发送和接收高速数字信息。该混合数字传输系统的基本构造块是远程位置处的接收由标准残留边带视频调制器处理的模拟广播TV样信号的装置。该设备从信号中解码数字信息，然后将其作为数字信息传送到任何形式的数据终端设备或计算机。

32. 发明授权

US5014125A Television system for the interactive distribution of selectable video presentations 失效
标题翻译：电视系统可互动分发可选视频演示
公开(公告)号：US5014125A
公开(公告)日：1991-05-07
申请号：US347732
申请日：1989-05-05
申请人： Terrence H. Pocock , Rick McNorgan , Peter Coumons , Allan Lodberg
发明人： Terrence H. Pocock , Rick McNorgan , Peter Coumons , Allan Lodberg
IPC分类号： G06Q30/00 , H04M3/42 , H04M11/00 , H04N1/00 , H04N1/21 , H04N7/173
CPC分类号： H04N7/17336 , H04N1/00098 , H04N1/2179 , H04N7/17318 , H04N2201/3264
摘要： An interactive television system employs a telephone connection in a two-way manner to send command signals from a viewer to a central controller to select various presentations and to send the audio portion of such presentations from a central location to individual viewers. When a connection is first established over the telephone lines between a viewer and the central controller, a transmission path identification is sent from the viewer's terminal to the central controller which indicates the particular video transmission path, e.g. trunk line and/or television channel, connecting the viewer to the central location. This path is then used to control the transmission of uniquely addressed viewo presentations from the central location to the viewer's terminal, where they are stored and retransmitted to the viewer's receiver.

33. 发明授权

US4847840A Digital data error block detection and display device 失效
标题翻译：数字数据错误块检测和显示设备
公开(公告)号：US4847840A
公开(公告)日：1989-07-11
申请号：US96760
申请日：1987-09-09
申请人： Takumi Jinguji
发明人： Takumi Jinguji
IPC分类号： G11B20/18 , H04N1/00 , H04N1/21 , H04N5/91 , H04N5/93 , H04N5/945 , H04N19/89
CPC分类号： H04N19/89 , G11B20/1833 , H04N1/00098 , H04N1/0035 , H04N5/945 , H04N2201/3264
摘要： A digital data error block detection and display device which prevents incorrect operations in a receiving section due to data errors, displays block numbers containing errors, and thereby allows the operator to easily identify error-containing blocks. It is first checked whetehr a device bebug mode has been selected, and data errors are detected in digital data while transmitting the same. Digital data transmission is terminated when a data error has been detected. Digital data blocks containing data error are identified. A decision is made whether digital data including the digital block in which data error has been detected is to be transmitted. Transmission is continued of the digital data including the digital data block in which data error was detected.
摘要翻译：一种数据数据错误块检测和显示装置，其防止由于数据错误而在接收部分中的错误操作，显示包含错误的块号，从而允许操作者容易地识别包含错误的块。首先检查是否选择了设备屏蔽模式，并在数字数据发送时检测到数据错误。当检测到数据错误时，数字数据传输被终止。识别包含数据错误的数字数据块。决定是否发送包括检测到数据错误的数字块的数字数据。包括检测到数据错误的数字数据块的数字数据继续传输。

34. 发明授权

US4045819A Video recorder and playback apparatus 失效
标题翻译：视频录像机和播放器
公开(公告)号：US4045819A
公开(公告)日：1977-08-30
申请号：US636316
申请日：1975-11-28
申请人： Peter C. Goldmark
发明人： Peter C. Goldmark
IPC分类号： H04N1/00 , H04N1/21 , H04N9/802 , H04N5/79
CPC分类号： H04N9/802 , H04N1/00098 , H04N1/2104 , H04N2201/3264
摘要： An apparatus is described for recording and playing back video frames with associated audio signals for use with a conventional television display. A magnetic loop is employed to store video frames for display with associated audio information being placed as a separate frame on another magnetic medium. A full program of video and audio frames may be received and selected from a remote transmitter and appropriately located on a magnetic medium for sequential display on the television display. A first embodiment uses a cassette tape with a video loop for storage and playback of a program. A second embodiment uses a pair of multiple track belts for program storage and playback. Pilot signals are employed to precisely store the video frames on the video loop and to automatically sequence the display and sound projection of the multiple video and associated audio frames.

35. 发明授权

US4034405A Television facsimile transmission system 失效
标题翻译：电视传真传输系统
公开(公告)号：US4034405A
公开(公告)日：1977-07-05
申请号：US628098
申请日：1975-11-03
申请人： Peter Johannes Hubertus Janssen
发明人： Peter Johannes Hubertus Janssen
IPC分类号： H04B7/02 , H04L1/08 , H04N1/00 , H04N1/41 , H04N7/025 , H04N7/03 , H04N7/035 , H04N7/088 , H04N7/12 , H04N7/08
CPC分类号： H04L1/08 , H04N1/00098 , H04N7/088
摘要： Facsimile transmission can be effected in a conventional television system by means of code words which occur in a television line period in a field blanking interval. Transmission in the UHF band does not give rise to specific problems, but transmission in the VHF band does, in particular in that pulse disturbances occur. The influence of these disturbances can be eliminated by transmitting the same facsimile information during two (or more) successive line periods. The receiver is provided with a circuit which includes three delay devices, one having a delay time equal to a line period and the other two having delay times equal to at least the duration of a facsimile code word. The pulse disturbance is detected by means of a superposition stage and a signal detector, and the undisturbed code word is supplied via a change-over stage to a storage stage.
摘要翻译：可以通过在现场消隐间隔的电视线路周期中出现的码字在传统电视系统中实现传真传输。在UHF频带中的传输不会引起具体问题，但VHF频带中的传输特别是在发生脉冲干扰的情况下。这些扰动的影响可以通过在两个（或多个）连续行期间内传送相同的传真信息来消除。该接收机设置有一个包括三个延迟装置的电路，一个具有等于行周期的延迟时间，另外两个具有等于至少传真码字持续时间的延迟时间。通过叠加级和信号检测器检测脉冲干扰，通过转换级将未受干扰的码字提供给存储级。

36. 发明授权

US3988528A Signal transmission system for transmitting a plurality of information signals through a plurality of transmission channels 失效
标题翻译：用于通过多个传输信道发送多个信息信号的信号传输系统
公开(公告)号：US3988528A
公开(公告)日：1976-10-26
申请号：US391978
申请日：1973-08-27
申请人： Akio Yanagimachi , Hisakichi Yamane , Eiichi Sawabe , Takashi Uehara , Takehiko Yoshino , Teruhiro Takezawa , Michio Masuda , Hiroaki Nabeyama , Masaaki Fukuda , Tatsuo Kayano
发明人： Akio Yanagimachi , Hisakichi Yamane , Eiichi Sawabe , Takashi Uehara , Takehiko Yoshino , Teruhiro Takezawa , Michio Masuda , Hiroaki Nabeyama , Masaaki Fukuda , Tatsuo Kayano
IPC分类号： H04J3/16 , H04N1/00 , H04N7/52 , H04N7/54 , H04N7/08
CPC分类号： H04N21/236 , H04J3/1605 , H04N1/00098 , H04N21/434 , H04N7/54
摘要： A transmission system for transmitting a plurality of information signals having arbitrary time lengths through a plurality of transmission channels, wherein at a transmitter end said plurality of information signals are allotted to said plurality of transmission channels in such a manner that in each transmission channel an information signal is followed by other information signal and a control signal comprising an index of an information composed of one or more information signals, a transmission channel or channels through which said one or more information signals are transmitted and one or more timings of transition of said one or more information signals is transmitted in addition to said information signals and at a receiver end a desired information signal is selectively extracted and reproduced under the control of said control signal.
摘要翻译：一种用于通过多个传输信道发送具有任意时间长度的多个信息信号的传输系统，其中在发射端处，所述多个信息信号被分配给所述多个传输信道，使得在每个传输信道中，信息信号之后是其他信息信号和包括由一个或多个信息信号组成的信息的索引的控制信号，传输信道或发送所述一个或多个信息信号的信道，以及所述一个或多个信号的转换定时除了所述信息信号之外还传输了更多的信息信号，并且在接收端，在所述控制信号的控制下选择性地提取和再现期望的信息信号。

37. 发明授权

US3938189A System for recording and playing back individual frames of video and related audio signals 失效
标题翻译：用于录制和播放视频和相关音频信号的单个帧的系统
公开(公告)号：US3938189A
公开(公告)日：1976-02-10
申请号：US297180
申请日：1972-10-13
申请人： Peter C. Goldmark
发明人： Peter C. Goldmark
IPC分类号： H04N5/92 , G11B5/027 , H04N1/00 , H04N1/21 , H04N5/775 , H04N9/802 , H04N5/79
CPC分类号： H04N9/802 , H04N1/00098 , H04N1/2104 , H04N5/775 , H04N2201/3264
摘要： An apparatus is described for recording and playing back video frames with associated audio signals for use with a conventional television display. A magnetic loop is employed to store video frames for display with associated audio information being placed on a separate frame on another magnetic medium. A full program of video and audio frames may be received and selected from a remote transmitter and appropriately located on a magnetic medium for sequential display on the television display. A first embodiment uses a cassette tape with a video loop for storage and playback of a program. A second embodiment uses a pair of multiple track belts for program storage and playback. Pilot signals are employed to precisely store the video frames on the video loop and to automatically sequence the display and sound projection of the multiple video and associated audio frames.
摘要翻译：描述了用于记录和再现具有用于常规电视显示器的相关音频信号的视频帧的装置。使用磁环来存储用于显示的视频帧，相关联的音频信息被放置在另一个磁介质上的单独帧上。可以从远程发射机接收并选择完整的视频和音频帧节目，并且适当地位于磁性介质上，以在电视显示器上顺序显示。第一实施例使用具有用于存储和回放节目的视频循环的盒式磁带。第二实施例使用一对多轨道带用于程序存储和重放。采用导频信号将视频帧精确地存储在视频循环上，并自动对多个视频和相关音频帧的显示和声音投影进行排序。

38. 发明授权

US3928720A Synchronizing signal regenerator 失效
标题翻译：同步信号再生器
公开(公告)号：US3928720A
公开(公告)日：1975-12-23
申请号：US47182274
申请日：1974-05-20
申请人： HITACHI LTD
发明人： WATATANI YOSHIZUMI , MOHRI KATSUO , FUKUDA MASAAKI , KAYANO TATSUO , YOSHINO TAKEHIKO
IPC分类号： H04N7/025 , H04J3/00 , H04N1/00 , H04N7/03 , H04N7/035 , H04N7/56 , H04L7/00
CPC分类号： H04N1/00098 , H04N7/56
摘要： Synchronizing signal regenerator for regenerating a plurality of synchronizing signals from a composite signal including a plurality of synchronizing signals. The composite signal comprises a first synchronizing signal formed of a pulse series having a predetermined certain repetition frequency and intermittently inserted at a predetermined period for a predetermined duration, and a second synchronizing signal synchronized with the boundaries of the pulse series of the first synchronizing signal and inserted at a repetition period equal to the width of the intermittently inserted pulse series. The synchronizing signal regenerator comprises a circuit for deriving the pulse series by detecting the first synchronizing signal, a hold circuit for producing a continuous pulse when the derived pulse series has an interval less than a predetermined length, an integrator for integrating the output signal of the hold circuit, a circuit for producing a trigger pulse when the amplitude of the integrated signal reaches a predetermined value, a circuit for detecting and regenerating the second synchronizing signal, and a step down circuit for regenerating a signal synchronized with the time interval in which the pulse series of the first synchronizing signal is inserted by frequency dividing the regenerated second synchronizing signal by using the regenerated second synchronizing signal as a clock pulse and by making the trigger pulse a clear pulse.
摘要翻译：同步信号再生器，用于从包括多个同步信号的复合信号再生多个同步信号。复合信号包括由具有预定的一定重复频率的脉冲序列形成的第一同步信号，并且以预定时间段间歇地插入预定持续时间，以及与第一同步信号的脉冲序列的边界同步的第二同步信号，以及以等于间歇插入的脉冲序列的宽度的重复周期插入。同步信号再生器包括用于通过检测第一同步信号导出脉冲序列的电路，当导出的脉冲序列具有小于预定长度的间隔时产生连续脉冲的保持电路，用于将输出信号保持电路，当积分信号的幅度达到预定值时产生触发脉冲的电路，用于检测和再生第二同步信号的电路，以及用于再生与时间间隔同步的信号的降压电路，其中，通过使用再生的第二同步信号作为时钟脉冲，并且通过使触发脉冲为清除脉冲，对再生的第二同步信号进行分频来插入第一同步信号的脉冲串。

39. 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。

40. 发明授权

USB393163I5 失效
公开(公告)号：USB393163I5
公开(公告)日：1975-01-28
申请号：US39316373
申请日：1973-08-30
IPC分类号： H04N7/08 , H04N1/00 , H04N7/081 , H04N7/12
CPC分类号： H04N1/00098

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