利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

391 条记录 (耗时 0.023 秒)

    Method and apparatus for recording scrambled television signals
    1.
    发明授权
    Method and apparatus for recording scrambled television signals 失效
    用于记录加扰电视信号的方法和装置

    公开(公告)号：US4635112A

    公开(公告)日：1987-01-06

    申请号：US583318

    申请日：1984-02-24

    申请人： Masao Tomioka ,  Takashi Okada ,  Takao Mogi

    发明人： Masao Tomioka ,  Takashi Okada ,  Takao Mogi

    IPC分类号： H04N5/7826 ,  G11B15/02 ,  G11B31/00 ,  H04N5/76 ,  H04N5/782 ,  H04N5/913 ,  H04N7/088 ,  H04N7/16 ,  H04N7/167 ,  H04N21/4408

    CPC分类号： H04N21/4408 ,  G11B15/02 ,  G11B15/023 ,  G11B31/006 ,  H04N19/142 ,  H04N19/179 ,  H04N19/87 ,  H04N5/782 ,  H04N5/913 ,  H04N7/0887 ,  H04N7/0888 ,  H04N7/167 ,  H04N7/1675 ,  H04N2005/91364

    摘要： A scrambled television program is received and recorded in a scrambled fashion automatically in a video tape recorder by detecting program code signals placed in vertical blanking intervals of ten fields preceding the commencement of the scrambled program signal and upon sensing such program code signals the video tape recorder is activated to record the scrambled television program. A stop code signal is arranged following the coded television program and is detected for stopping operation of the video recorder, so that the scrambled program is recorded without requiring the manual setting of automatic timers or the like. In addition to the program code, a key code, and scene change signals are transmitted and these are used to produce a descramble pattern to descramble the television program when it is reproduced by the video tape recorder. By placing the key code after the television program, the entire program must be recorded in scrambled form before it can be reproduced and descrambled for viewing, thereby automatically recording the scrambled program without requiring a timer.

    摘要翻译： 通过检测放置在加扰的程序信号开始之前的十个场的垂直消隐间隔中的程序代码信号，并且在检测到这样的程序代码信号时，录像带记录器 被激活以记录加扰的电视节目。 在编码的电视节目之后布置停止码信号，并且被检测用于停止录像机的操作，从而在不需要自动定时器等的手动设置的情况下记录加扰程序。 除了程序代码之外，还发送了一个键码和场景改变信号，并且这些信号被用于产生解扰模式，以便当电视节目被录像机再现时对其进行解扰。 通过将密钥代码放置在电视节目之后，整个节目必须以加扰形式记录，才能被再现和解扰以供观看，从而自动记录加扰的节目而不需要定时器。

    Apparatus for scrambling a television signal
    3.
    发明授权
    Apparatus for scrambling a television signal 失效
    用于扰乱电视信号的装置

    公开(公告)号：US4700388A

    公开(公告)日：1987-10-13

    申请号：US899798

    申请日：1986-08-25

    申请人： Takashi Okada ,  Takao Mogi

    发明人： Takashi Okada ,  Takao Mogi

    IPC分类号： H04N5/14 ,  H04N7/167 ,  H04N7/171 ,  H04N7/26 ,  H04L9/02

    CPC分类号： H04N7/1716 ,  H04N19/142 ,  H04N19/179 ,  H04N19/87 ,  H04N5/147 ,  H04N7/1675

    摘要： An apparatus for scrambling or encoding a television signal by inverting the latter signal in accordance with a control signal having a predetermined code pattern comprises a detector circuit for detecting a change in a picture scene of the television signal and generating an identification signal in response to detection of the scene change and code generator for generating a key code signal of specific pattern which indicates a particular program of the television signal. According to this invention, the control signal is formed in response to both the identification signal and the key code signal.

    摘要翻译： 一种用于通过根据具有预定编码模式的控制信号反相后一信号对电视信号进行加扰或编码的装置包括检测电路，用于检测电视信号的图像场景的变化并响应于检测产生识别信号 用于产生指示电视信号的特定节目的特定模式的键码信号的场景改变和码发生器。 根据本发明，响应于识别信号和键码信号两者形成控制信号。

    Video signal recording and reproducing system with automatic channel and time selection
    4.
    发明授权
    Video signal recording and reproducing system with automatic channel and time selection 失效
    具有自动频道和时间选择的视频信号记录和再现系统

    公开(公告)号：US4626909A

    公开(公告)日：1986-12-02

    申请号：US491095

    申请日：1983-05-03

    申请人： Saburo Oniki ,  Takashi Okada ,  Takao Mogi

    发明人： Saburo Oniki ,  Takashi Okada ,  Takao Mogi

    IPC分类号： H04N5/91 ,  G04G15/00 ,  G11B31/00 ,  H04B1/06 ,  H04N5/76 ,  H04N5/782 ,  H04N5/913 ,  H04N7/16 ,  G11B5/02

    CPC分类号： H04N5/913 ,  G04G15/006 ,  H04N5/782 ,  H04N2005/91364

    摘要： A video recorder for automatically recording information being broadcast on at least one predetermined channel at a predetermined time comprises a tuner which tunes to any one of a plurality of channels received thereby and includes a channel selector actuable for selecting the predetermined channel, a recorder operable to record information broadcast on the channel to which the tuner is tuned, a timer actuable to cause operation of the recorder at the predetermined time, and a single, manually operable actuating member which simultaneously actuates the channel selector and the timer so that the recorder records the information broadcast on the predetermined channel at the predetermined time.

    摘要翻译： 用于自动记录在预定时间内在至少一个预定频道上广播的信息的视频记录器包括调谐器，其调谐到由此接收的多个频道中的任何一个信道，并且包括可用于选择预定频道的频道选择器， 在调谐器被调谐的频道上记录信息，一个致动的可在预定时间使记录器工作的定时器，以及一个单独的可手动操作的致动部件，其同时致动通道选择器和定时器， 在预定时间在预定频道上广播信息。

    Scrambled television signal receiver system
    5.
    发明授权
    Scrambled television signal receiver system 失效
    加扰电视信号接收系统

    公开(公告)号：US4636855A

    公开(公告)日：1987-01-13

    申请号：US585174

    申请日：1984-03-01

    申请人： Takashi Okada ,  Takao Mogi ,  Shinjiro Mino

    发明人： Takashi Okada ,  Takao Mogi ,  Shinjiro Mino

    IPC分类号： H04K1/00 ,  H04N5/913 ,  H04N7/16 ,  H04N7/167 ,  H04N7/171

    CPC分类号： H04N5/913 ,  H04N2005/91364

    摘要： A television signal receiving system for use with a scrambled television signal or a standard television signal includes a recording and reproducing circuit which records and reproduces the received television signal and a monitor for displaying the received or reproduced television signal. A descrambling circuit descrambles the scrambled television signal either as received or reproduced to generate a descrambled television signal when a detector detects the existence of a scrambled television signal and generates a control signal in response thereto. A switch responds to the control signal and automatically supplies to the monitor either the descrambled television signal or the standard television signal according to the type of television signal being received or reproduced.

    摘要翻译： 与加扰电视信号或标准电视信号一起使用的电视信号接收系统包括记录和再现接收的电视信号的记录和再现电路以及用于显示接收或再现的电视信号的监视器。 解扰电路解扰加扰的电视信号，如果接收或再现，以便当检测器检测到加扰的电视信号的存在并产生响应于此的控制信号时产生解扰的电视信号。 开关响应控制信号，并根据接收或再现的电视信号的类型自动向监视器提供解扰的电视信号或标准电视信号。

    Memory selecting system for scrambled television receiver
    6.
    发明授权
    Memory selecting system for scrambled television receiver 失效
    加扰电视接收机的存储选择系统

    公开(公告)号：US4628359A

    公开(公告)日：1986-12-09

    申请号：US592257

    申请日：1984-03-22

    申请人： Takashi Okada ,  Takao Mogi

    发明人： Takashi Okada ,  Takao Mogi

    IPC分类号： H04H20/00 ,  H04H60/13 ,  H04H60/16 ,  H04H60/27 ,  H04N5/913 ,  H04N7/167 ,  H04N7/171 ,  G11B5/02

    CPC分类号： G11B20/00086 ,  G11B20/00246 ,  G11B20/00666 ,  G11B20/00797 ,  H04H60/13 ,  H04H60/16 ,  H04H60/27 ,  H04N5/913 ,  H04N2005/91364

    摘要： A scrambled television program that is received and recorded in a scrambled fashion includes program code and corresponding key codes for use in descrambling the recorded scrambled signal. The program codes and key codes are retained in a memory so that upon reproduction the key code can be read out of the memory and fed to a descramble pattern generator for descrambling the reproduced scrambled signal. By placing the program code and key code at the end of the scrambled program the scrambled signal cannot be descrambled until the entire program has been first received. By dividing the memory into permanent and temporary memories and adding an identification code to the transmitted scrambled signal, which selects either the permanent or temporary memory, and counting the number of times that the temporary memory is read out there can be a limitation placed on the number of times that the scrambled program is reproduced and decoded for viewing. Once a selected number is reached the contents of the temporary memory are erased, thereby preventing descrambling of the reproduced signal.

    摘要翻译： 以加扰方式接收和记录的加扰电视节目包括用于解扰所记录的加扰信号的程序代码和相应的密钥码。 程序代码和密钥代码被保留在存储器中，使得在再现时，可以从存储器中读出密钥代码并将其馈送到解扰模式发生器，以对再生的加扰信号进行解扰。 通过将程序代码和密钥代码放置在加扰程序的结尾处，加扰信号不能被解扰，直到整个程序被首次接收为止。 通过将存储器划分为永久和临时存储器，并将识别码添加到发送的加扰信号（其选择永久存储器或临时存储器）以及对临时存储器读出的次数进行计数，可以限制在 加扰程序被再现和解码以供观看的次数。 一旦达到选择的数字，临时存储器的内容被擦除，从而防止再现信号的解扰。