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17 条记录 (耗时 0.011 秒)

    Method of and apparatus for decoding scrambled video signals
    1.
    发明公开
    Method of and apparatus for decoding scrambled video signals 失效
    用于解码编码的视频信号的方法和装置。

    公开(公告)号：EP0120685A2

    公开(公告)日：1984-10-03

    申请号：EP84301955.5

    申请日：1984-03-22

    申请人： SONY CORPORATION

    发明人： Okada, Takashi ,  Mogi, Takao

    IPC分类号： H04N5/91 ,  H04N7/16

    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 thatthe 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.

    Digital bus control system
    4.
    发明公开
    Digital bus control system 无效
    数字总线控制系统

    公开(公告)号：EP0211554A3

    公开(公告)日：1988-08-17

    申请号：EP86305547

    申请日：1986-07-18

    申请人： SONY CORPORATION

    发明人： Mogi, Takao ,  Keiji, Yuzawa ,  Yoshinori, Komiya ,  Masayuki, Suematsu ,  Fujio, Tanoue

    IPC分类号： H04B01/20 ,  H04N05/44

    CPC分类号： H04N5/44 ,  H04B1/205

    摘要： Digitally controllable ICs 1, 2, 3 in an electronic equipment are connected through control bus lines. Switch means is provided for disconnecting one of the digitally controllable IC from the control bus. The control bus is not disabled when such IC is turned off or is not occupied when the IC is operating in its internal processing mode. The communication between the remaining ICs through the control bus can be kept enabled.

    Digital control systems for electronic apparatus
    6.
    发明公开
    Digital control systems for electronic apparatus 失效
    电子设备数字控制系统

    公开(公告)号：EP0197768A3

    公开(公告)日：1987-12-02

    申请号：EP86302473

    申请日：1986-04-03

    申请人： SONY CORPORATION

    发明人： Mogi, Takao ,  Suematsu, Masayuki

    IPC分类号： G05B19/04 ,  G05B23/02 ,  G06F11/22 ,  G06F13/42 ,  H04L25/38 ,  G05B19/403 ,  G06F13/36

    CPC分类号： G05B19/0421

    摘要： A digital control system for electronic apparatus (1) such as a television receiver, employs an internal bus (8) and includes at least one master controller (6) and a plurality of operation circuits (2 to 5) connected via control bus lines (9, 10) so that, during normal operation of the electronic apparatus (1), the master controller (6) can carry out predetermined control operations relative to the respective circuit blocks (2 to 5). During testing and/or adjustment, an auxiliary master controller (12) is connected to the control bus lines (9, 10) in order to control the operational circuits (2 to 5) in place of the master controller (6), while holding the master controller (6) in the slave mode.

    Method of and apparatus for decoding scrambled video signals
    7.
    发明公开
    Method of and apparatus for decoding scrambled video signals 失效
    解码视频信号的方法和装置

    公开(公告)号：EP0120685A3

    公开(公告)日：1986-02-19

    申请号：EP84301955

    申请日：1984-03-22

    申请人： SONY CORPORATION

    发明人： Okada, Takashi ,  Mogi, Takao

    IPC分类号： H04N05/91 ,  H04N07/16

    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 thatthe 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.

    Apparatus for viewing scrambled or unscrambled TV signals
    8.
    发明公开
    Apparatus for viewing scrambled or unscrambled TV signals 失效
    用于查看被屏蔽或未经播放的电视信号的装置

    公开(公告)号：EP0119081A3

    公开(公告)日：1986-01-22

    申请号：EP84301609

    申请日：1984-03-09

    申请人： SONY CORPORATION

    发明人： Okada, Takashi ,  Mogi, Takao ,  Mino, Shinjiro

    IPC分类号： H04N05/91

    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 exitence 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.