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公开(公告)号：US3626087A
公开(公告)日：1971-12-07
申请号：US3626087D
申请日：1969-10-07
Applicant: SONY CORP
Inventor： TOMIOKA MASAO
CPC classification number: H04N9/7921 , H04N9/83
Abstract: A magnetic-recording device for video signals has means for discriminating between a composite color video signal and a monochrome video signal and means for driving an oscillator which generates a pilot signal of a chrominance signal only when a composite color video signal is being recorded so that no pilot signal is recorded to interfere with the reproduction of a monochrome video signal.
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公开(公告)号：BR8400897A
公开(公告)日：1984-10-02
申请号：BR8400897
申请日：1984-02-27
Applicant: SONY CORP
Inventor： TOMIOKA MASAO , OKADA TAKASHI , MOGI TAKAO
IPC: H04N5/7826 , G11B15/02 , G11B31/00 , H04N5/76 , H04N5/782 , H04N5/913 , H04N7/088 , H04N7/16 , H04N7/167 , H04N21/4408
Abstract: 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.
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公开(公告)号：AU564715B2
公开(公告)日：1987-08-20
申请号：AU2512184
申请日：1984-02-28
Applicant: SONY CORP
Inventor： TOMIOKA MASAO , OKADA TAKASHI , MOGI TAKAO
IPC: H04N5/7826 , G11B15/02 , G11B31/00 , H04N5/76 , H04N5/782 , H04N5/913 , H04N7/088 , H04N7/16 , H04N7/167 , H04N21/4408 , G11B15/18 , H04N5/91
Abstract: 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.
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公开(公告)号：DE3465159D1
公开(公告)日：1987-09-03
申请号：DE3465159
申请日：1984-02-28
Applicant: SONY CORP
Inventor： TOMIOKA MASAO , OKADA TAKASHI , MOGI TAKAO
IPC: H04N5/7826 , G11B15/02 , G11B31/00 , H04N5/76 , H04N5/782 , H04N5/913 , H04N7/088 , H04N7/16 , H04N7/167 , H04N21/4408
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：CA1219060A
公开(公告)日：1987-03-10
申请号：CA448136
申请日：1984-02-23
Applicant: SONY CORP
Inventor： TOMIOKA MASAO , OKADA TAKASHI , MOGI TAKAO
IPC: H04N5/7826 , G11B15/02 , G11B31/00 , H04N5/76 , H04N5/782 , H04N5/913 , H04N7/088 , H04N7/16 , H04N7/167 , H04N21/4408
Abstract: 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.
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公开(公告)号：AU7277774A
公开(公告)日：1976-03-04
申请号：AU7277774
申请日：1974-08-29
Applicant: SONY CORP
Inventor： TOMIOKA MASAO , ORIHARA YASUNORI
IPC: G11B15/02 , G11B15/665 , H02P1/22 , G11B15/66
Abstract: In a cassette tape device having tape guide means movable around a tape guide drum, the operating time of the tape guide means is measured to actuate a protecting circuit to stop the tape drive motor if the operative time of the tape guide means exceeds the estimated operating time, as such excessive time would be indicative of trouble in the guide means.
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公开(公告)号：AU598216B2
公开(公告)日：1990-06-21
申请号：AU6652286
申请日：1986-12-15
Applicant: SONY CORP
Inventor： MITSUHASHI TAKAMICHI , TOMIOKA MASAO
Abstract: A sound field expansion system applicable to a video tape recorder includes circuitry for effectively forming two virtual comb filter characteristics by adding a first audio signal (SA) and a second audio signal (L + R) delayed by a predetermined interval of time with respect to the first audio signal (SA); the first audio signal (SA) is passed through a phase shift circuit (80) which shifts the phase of the first audio signal before addition with the second audio signal (L + R) in an adder (30) so that the reproduced sound field can be considerably expanded. A correction circuit (60,70) for providing a predetermined frequency characteristic for the first or second audio signal is included so that an acoustic image having a desired frequency band can be positioned as required. The first and second audio signals may be monaural or stereophonic and are derived from demodulation of an audio frequency-modulated (AFM) signal recorded on a common track of a magnetic tape together with a one-field video signal in a frequency division multiplex mode, and of a time-axis-compressed pulse-code-modulated (PCM) audio signal recorded on the common track together with the one-field video signal in a time share mode.
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公开(公告)号：AU6652286A
公开(公告)日：1987-06-25
申请号：AU6652286
申请日：1986-12-15
Applicant: SONY CORP
Inventor： MITSUHASHI TAKAMICHI , TOMIOKA MASAO
Abstract: A sound field expansion system applicable to a video tape recorder includes circuitry for effectively forming two virtual comb filter characteristics by adding a first audio signal (SA) and a second audio signal (L + R) delayed by a predetermined interval of time with respect to the first audio signal (SA); the first audio signal (SA) is passed through a phase shift circuit (80) which shifts the phase of the first audio signal before addition with the second audio signal (L + R) in an adder (30) so that the reproduced sound field can be considerably expanded. A correction circuit (60,70) for providing a predetermined frequency characteristic for the first or second audio signal is included so that an acoustic image having a desired frequency band can be positioned as required. The first and second audio signals may be monaural or stereophonic and are derived from demodulation of an audio frequency-modulated (AFM) signal recorded on a common track of a magnetic tape together with a one-field video signal in a frequency division multiplex mode, and of a time-axis-compressed pulse-code-modulated (PCM) audio signal recorded on the common track together with the one-field video signal in a time share mode.
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公开(公告)号：CA1310747C
公开(公告)日：1992-11-24
申请号：CA523926
申请日：1986-11-27
Applicant: SONY CORP
Inventor： MITSUHASHI TAKAMICHI , TOMIOKA MASAO
Abstract: A sound field expansion system applicable to a magnetic recording and reproducing apparatus (VTR) which can expand the sound field in a simple construction. In the sound field expansion system. a circuitry for virtually forming two comb filter characteristics is provided by adding a first audio signal and a second audio signal delayed by a predetermined interval of time with respect to the first audio signal and adding the first audio signal which is passed through a phase shift circuit which shifts the phase of the first audio signal so that the reproduced sound field can remarkably be expanded. Furthermore. a correction circuit for providing a predetermined frequency characteristic for the first or second audio signal is installed so that an acoustic image having a desired frequency band can be positioned. The first and second audio signals may be monaural or stereophonic and are derived from demodulations of audio frequency-modulated (AFM) signal recorded on a common track of a magnetic tape together with a one-field video signal in a frequency division multiplex mode and time-axis-compressed pulse-code-modulated audio (PCM) signal recorded on the common track together with the one-field video signal in a time share mode.
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