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公开(公告)号：CA1135405A
公开(公告)日：1982-11-09
申请号：CA325596
申请日：1979-04-17
Applicant: SONY CORP
Inventor： MORIO MINORU , KAMBARA MASAHIRO , KUBOTA YUKIO , YAMASHITA KEITARO
Abstract: In a recording and reproducing apparatus in which a video signal is recorded by at least one rotary head in successive parallel tracks on a recording medium while the latter is being driven at a predetermined or standard speed in a direction to which said tracks are skewed, and in which the recorded video signal is reproduced by the rotary head repeatedly scanning the recording medium while the latter is selectively driven at the standard speed, as in the normal reproducing mode, or at an arbitrary speed other than such standard speed, for example, at zero speed for the still-motion reproducing mode, or at speeds less than and greater than the standard speed for the slowmotion and quick-motion reproducing modes, respectively; a variable delay circuit is operative during reproducing with the recording medium being driven at an arbitrary speed other than standard speed for variably delaying the video signal reproduced by said rotary head, and a control circuit controls the amounts by which the variable delay circuit delays the reproduced video signal in accordance with the arbitrary speed to cause fields of the reproduced video signal which are contiguous or next adjacent in point of time to be continuous in the delayed video signal and to contain respective horizontal synchronizing signals which are in predetermined phase relationships to each other, that is, precisely in phase or out of phase by one-half horizontal period, as when even - and odd-numbered fields are to be interlaced.
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公开(公告)号：DE2712525A1
公开(公告)日：1977-10-20
申请号：DE2712525
申请日：1977-03-22
Applicant: SONY CORP
Inventor： MORIO MINORU , KAMBARA MASAHIRO
Abstract: A method of and apparatus for modifying a video signal such that a video picture can be reproduced on a television receiver in response to the modified video signal, but if the modified video signal is transmitted and then recorded on a video signal recorder, an accurate video picture cannot be reproduced if that recorded modified video signal subsequently is played back. The vertical blanking interval containing one set of equalizing pulses followed by a set of vertical synchronizing pulses followed by another set of equalizing pulses is modified by replacing a portion of the vertical synchronizing pulses and a portion of the set of equalizing pulses following the vertical synchronizing pulses with simulated equalizing pulses in at least some of the vertical blanking intervals. The amplitude and frequency of the simulated equalizing pulses are equal to that of the actual equalizing pulses.
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公开(公告)号：CA1143468A
公开(公告)日：1983-03-22
申请号：CA321514
申请日：1979-02-14
Applicant: SONY CORP
Inventor： MORIO MINORU , NAKAMURA TADAHIKO , KAMBARA MASAHIRO , KUBOTA YUKIO
Abstract: In a video signal reproducing apparatus for converting a first video signal having a first field frequency to a second video signal having a second field frequency, there are provided a tape scanning device which is made movable in a direction perpendicular to the recording track on a tape, a system for controlling the speed of the scanning device, a system for controlling the shifting amount of the scanning device in the aforesaid direction according to the difference between the first and second field frequencies, and a system for converting the number of lines contained in one field of the first video signal. In the above converting system there is included a memory, and the first video signal is written in the memory and read out therefrom so that the predetermined number of lines of the first video signal are discarded or repeated so as to have the number of lines of the second video signal.
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公开(公告)号：CA1111961A
公开(公告)日：1981-11-03
申请号：CA286258
申请日：1977-09-07
Applicant: SONY CORP
Inventor： KAMBARA MASAHIRO , MORIO MINORU , OKADA HIDEHIKO , KUBOTA YUKIO
IPC: H04N5/91 , G11B5/027 , G11B5/588 , G11B15/467 , G11B21/10
Abstract: A method and apparatus for correcting tracking errors of a transducer which scans successive, parallel, adjacent record tracks of n record medium so as to reproduce information signals therefrom. The information signals, which may comprise video signals, are recorded in the parallel record tracks, and predetermined signals also are recorded at predetermined locations in the information signals. When the information and predetermined signals are played back, at least one cross-talk predetermined signal which is recorded in at least one adjacent track also is played back. The cross-talk predetermined signal is detected and a control signal is produced response to the level of the detected cross-talk predetermined signal. The position of the transducer with respect to the track being scanned thereby is adjusted in accordance with the control signal. In one embodiment, the control signal is recorded at a predetermined location in each horizontal blanking interval of the video signals; and the horizontal blanking intervals which are recorded in one track are displaced with respect to the horizontal blanking intervals which are recorded in the adjacent track. This displacement of the horizontal blanking intervals, and thus the predetermined signals, in adjacent tracks facilitates the detection of the cross-talk predetermined signals which, for example, may comprise pilot signals. -i-
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公开(公告)号：DE2741030A1
公开(公告)日：1978-03-16
申请号：DE2741030
申请日：1977-09-12
Applicant: SONY CORP
Inventor： OKADA HIDEHIKO , MORIO MINORU , KAMBARA MASAHIRO , KUBOTA YUKIO
IPC: H04N5/7826 , G11B5/588 , G11B5/43 , H04N5/78
Abstract: Tracking control apparatus for a signal reproducing system of the type wherein at least one transducer scans successive parallel tracks on a record medium in which information signals, such as video signals, are recorded. The transducer preferably is of the rotary type so that, during its orbit, it is brought into and then out of reproducing relation with respect to the record medium. Any deviation between the scanning trace of the transducer across the medium and a given track which is being scanned is detected, and a control signal is produced as a function of this detected deviation. The transducer is supported by an adjustable support which is responsive to the control signal so as to displace the transducer transversely of the given track by an amount determined by the control signal. A predetermined sample of the control signal is produced while the transducer scans the given track, and this predetermined sample is stored. Prior to the time that the transducer moves into a reproducing relation with respect to the medium, the stored sample is supplied to the adjustable support so that the transducer is pre-displaced before signals are reproduced thereby.
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Patent Agency Ranking
公开(公告)号：CA1116291A
公开(公告)日：1982-01-12
申请号：CA286498
申请日：1977-09-12
Applicant: SONY CORP
Inventor： KUBOTA YUKIO , MORIO MINORU , OKADA HIDEHIKO , KAMBARA MASAHIRO
IPC: H04N5/7826 , G11B5/027 , G11B5/588 , G11B15/467 , G11B5/008
Abstract: A video signal reproducing system having a magnetic head deflector for automatic head scan tracking, the deflector being displaced corresponding to an error signal obtained from crosstalk pilot signals in a reproduced video signal.
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公开(公告)号：CA1094681A
公开(公告)日：1981-01-27
申请号：CA286497
申请日：1977-09-12
Applicant: SONY CORP
Inventor： OKADA HIDEHIKO , MORIO MINORU , KAMBARA MASAHIRO , KUBOTA YUKIO
IPC: H04N5/7826 , G11B5/588 , G11B15/62
Abstract: Tracking control apparatus for a signal reproducing system of the type wherein at least one transducer scans successive parallel tracks on a record medium in which information signals, such as video signals, are recorded. The transducer preferably is of the rotary type so that, during its orbit, it is brought into and then out of reproducing relation with respect to the record medium. Any deviation between the scanning trace of the transducer across the medium and a given track which is being scanned is detected, and a control signal is produced as a function of this detection deviation. The transducer is supported by an adjustable support which is responsive to the control signal so as to displace the transducer transversely of the given track by an amount determined by the control signal, A predetermined sample of the control signal is produced while the transducer scans the given track, and this predetermined sample is stored. Prior to the time that the transducer moves into a reproducing relation with respect to the medium, the stored sample is supplied to the adjustable support so that the transducer is pre-displaced before signals are reproduced thereby.
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公开(公告)号：DE2915881A1
公开(公告)日：1979-10-31
申请号：DE2915881
申请日：1979-04-19
Applicant: SONY CORP
Inventor： MORIO MINORU , KAMBARA MASAHIRO , KUBOTA YUKIO , YAMASHITA KEITARO
Abstract: In a recording and reproducing apparatus in which a video signal is recorded by at least one rotary head in successive parallel tracks on a recording medium while the latter is being driven at a predetermined or standard speed in a direction to which said tracks are skewed, and in which the recorded video signal is reproduced by the rotary head repeatedly scanning the recording medium while the latter is selectively driven at the standard speed, as in the normal reproducing mode, or at an arbitrary speed other than such standard speed, for example, at zero speed for the still-motion reproducing mode, or at speeds less than and greater than the standard speed for the slow-motion and quick-motion reproducing modes, respectively; a variable delay circuit is operative during reproducing with the recording medium being driven at an arbitrary speed other than standard speed for variably delaying the video signal reproduced by said rotary head, and a control circuit controls the amounts by which the variable delay circuit delays the reproduced video signal in accordance with the arbitrary speed to cause fields of the reproduced video signal which are contiguous or next adjacent in point of time to be continuous in the delayed video signal and to contain respective horizontal synchronizing signals which are in predetermined phase relationships to each other, that is, precisely in phase or out of phase by one-half horizontal period, as when even- and odd-numbered fields are to be interlaced.
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公开(公告)号：DE2712844A1
公开(公告)日：1977-10-06
申请号：DE2712844
申请日：1977-03-23
Applicant: SONY CORP
Inventor： MORIO MINORU , KAMBARA MASAHIRO
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公开(公告)号：DE2700874A1
公开(公告)日：1977-07-21
申请号：DE2700874
申请日：1977-01-11
Applicant: SONY CORP
Inventor： MORIO MINORU , KAMBARA MASAHIRO , MARUNO YOSHIMARU
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