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公开(公告)号:JPH05122648A
公开(公告)日:1993-05-18
申请号:JP28320391
申请日:1991-10-29
Applicant: SONY CORP
Inventor: KAMIIDE KAZUYA
IPC: G11B15/467 , G11B15/44 , H04N5/783 , H04N5/93 , H04N5/937
Abstract: PURPOSE:To accurately feed frames and to prevent an image from missing due to distorted tape caused by the switching time of a switching mechanism by setting forward the frames by the amount of the frames corresponding to the frames fed instead of an amount of the time corresponding to the switching time of the switching mechanism part in a single direction when a tape is fed in forward direction or reverse direction. CONSTITUTION:In an information reproducing device in which the running of a tape, the driving of T and S reels 5 and 4 of a magnetic tape 1 are made by a single motor 13 by means of a switching mechanism part 14 for the capstan motor 13, the frames are set forward by the amount of the frames fed instead of the amount of time corresponding to the switching time of the switching mechanism part 14 in a single direction when the tape is fed in the forward direction or the reverse direction.
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公开(公告)号:JPH05111055A
公开(公告)日:1993-04-30
申请号:JP26458991
申请日:1991-10-14
Applicant: SONY CORP
Inventor: SHIBATA MASAHIRO , KAMIIDE KAZUYA
Abstract: PURPOSE:To obtain an excellent variable-speed reproduced image without color disturbance by a VTR for obtaining a variable speed reproduced image from a variable speed reproducing signal having much noise. CONSTITUTION:This reproducing circuit has a frequency conversion circuit 7 for converting a reproduced low band chroma signal into its original frequency by means of a conversion carrier, a color shear preventing circuit 12 for varying the phase of the conversion carrier when a frequency-converted chroma signal generates a color shear and a DOC detection circuit 9 for detecting a noise section at the time of variable-speed reproducing. During the period of the noise section at the time of variable-speed reproducing, the operation of the circuit 12 is inhibited.
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公开(公告)号:JPH05109251A
公开(公告)日:1993-04-30
申请号:JP26500491
申请日:1991-10-14
Applicant: SONY CORP
Inventor: KAMIIDE KAZUYA , MOTOYOSHI NOBORU , IKEDA YUKIHISA
Abstract: PURPOSE:To enjoy video and audio signals except video and audio signals recorded by outputting signals received with a second receiving means to a first output terminal, and simultaneously, outputting signals received with a frist receiving means or an external input signals to a second output terminal when signals received with the first receiving means or the external input signals are recorded. CONSTITUTION:When information is recorded in a recording medium 10, by the first receiving means 2 and another receiving means 4 and switching means 5, 7, 13 and 18 changeovering the received signals by the means 2 and the signals by the means 4, the received signals by the means 4 are outputted from a first output terminal 13c for a monitor 17 and the received signals by the means 2 or the external input signals are outputted from an output terminal 13e when the received signals by the means 2 or the external input signals are recorded. Consequently, while the received signals by the first receiving means or the external input signals are recorded, the video and audio signals of the received signals by the second receiving means are enjoyed.
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公开(公告)号:JPH05109238A
公开(公告)日:1993-04-30
申请号:JP26500391
申请日:1991-10-14
Applicant: SONY CORP
Inventor: KAMIIDE KAZUYA , MOTOYOSHI NOBORU , HANZAWA MASANORI
IPC: G11B15/24 , G11B27/02 , G11B27/024
Abstract: PURPOSE:To enable the editing work with high accuracy without shifting an editing point by making the reproducing pausing state of a recording side VTR presently under the recording pausing state by pressing player key at the time of editing and confirming a reproducing picture of the recording side VTR without operating a shuttle key. CONSTITUTION:The subject device is capable of recording a video and audio signals in forming slant tracks on a magnetic tape 10 or reproducing the video and audio signals recorded on the magnetic tape 10. In this VTR, the recording side VTR is made to be capable of changing the recording pausing state to the reproducing pausing state by pressing only the player key 18b.
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公开(公告)号:JPH0567110B2
公开(公告)日:1993-09-24
申请号:JP14316485
申请日:1985-06-29
Applicant: SONY CORP
Inventor: MICHIURA MINORU , KAMIIDE KAZUYA
IPC: G11B15/467 , H04N5/783
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公开(公告)号:JPH05115074A
公开(公告)日:1993-05-07
申请号:JP27438791
申请日:1991-10-23
Applicant: SONY CORP
Inventor: SHIBATA MASAHIRO , KAMIIDE KAZUYA
Abstract: PURPOSE:To obtain an excellent variable-speed reproduction picture without disturbance of color in the VTR obtaining the variable-speed reproduction picture from a variable-speed reproduction signal with much noise. CONSTITUTION:The circuit is provided with a frequency conversion circuit 10 using a conversion carrier so as to convert a reproduced low frequency chroma signal into an original frequency signal and with a color deviation prevention circuit 13 varying the phase of the conversion carrier when color deviation takes place in the chroma signal subject to frequency conversion, and also with a synchronization pulse generating circuit 8 generating a pseudo synchronization pulse, a DOC detection circuit 12 detecting a noise period at variable-speed reproduction and a changeover switch SW controlled by an output of the DOC detection circuit 12, selecting a synchronization pulse of a reproduced video signal for a normal reproduction period and a pseudo synchronization pulse for a noise period respectively and outputting the selected signal SW to the color deviation prevention circuit 13.
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公开(公告)号:JPH05110996A
公开(公告)日:1993-04-30
申请号:JP26458891
申请日:1991-10-14
Applicant: SONY CORP
Inventor: SHIBATA MASAHIRO , KAMIIDE KAZUYA
Abstract: PURPOSE:To obtain a satisfactory variable speed reproduced picture regardless of many noise sections in a reproduced video signal in the variable speed reproducing mode. CONSTITUTION:This circuit consists of a DOC detecting circuit 6 which outputs a timing pulse corresponding to the noise section of the reproduced video signal in the variable speed reproducing mode, a signal substituting circuit 5 which substitutes the noise section of the reproduced video signal with a signal having a certain low level based on the timing pulse, a clamping circuit 7 which clamps the output video signal of the circuit 5, and a memory 9 which takes in the clamped video signal and devises read of taken-in data to complement the noise section.
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公开(公告)号:JPH05103346A
公开(公告)日:1993-04-23
申请号:JP26163391
申请日:1991-10-09
Applicant: SONY CORP
Inventor: SHIBATA MASAHIRO , KAMIIDE KAZUYA , YOSHIZU HIROYUKI
Abstract: PURPOSE:To obtain a composite output without causing resolution deterioration in a VTR having an S-terminal output. CONSTITUTION:Video signals reproduced by means of a head 1 are processed by means of a video process circuit 2 and luminance and chrominance signals outputted from the circuit 2 are respectively introduced to time base correction circuits 3a and 3b. A composite output is obtained by performing the writing and readout in and from the RAMS of the circuits 3a and 3b at the same timing and inputting the luminance and chrominance signals outputted from the circuits 3a and 3b to a mixer 9.
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公开(公告)号:JPS626454A
公开(公告)日:1987-01-13
申请号:JP14316585
申请日:1985-06-29
Applicant: SONY CORP
Inventor: MICHIURA MINORU , SUGIYAMA KATSUHIRO , KAMIIDE KAZUYA
IPC: G11B15/467 , G11B15/02 , G11B15/48 , H04N5/783
Abstract: PURPOSE:To start operation based upon a new operation mode obtained by the switching of the preceding operation mode quickly always from a specific initial status by stopping the traveling of a tape under the tracking status on a prescribed recording track to switch the current operation mode. CONSTITUTION:A tracking control means executes tracking control on the basis of a tracking error signal formed by a frequency signal component which is a difference between the frequency of a reproduced pilot signal reproduced from a recording track on a magnetic tape and that of a reference pilot signal so that a head traces the center of the objective recording track. A stop control means stops the tape traveling under the status that the head is tracked on a prescribed recording track on the basis of the operation of the tracking control means and the stop control means. Consequently, relative positional relation between the recording track on the magnetic tape and the head at the start of operation in a new operation mode is always fixed.
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公开(公告)号:JPS623576A
公开(公告)日:1987-01-09
申请号:JP14316485
申请日:1985-06-29
Applicant: SONY CORP
Inventor: MICHIURA MINORU , KAMIIDE KAZUYA
IPC: G11B15/467 , H04N5/783
Abstract: PURPOSE:To obtain a variable speed slow reproducing picture with very few noise by applying a regulated volume of brake on a tape travelling control system at a regulated timing with tracking a tape at an objected track by a control means and stopping the travel of the tape. CONSTITUTION:In a still reproducing operation mode, such as a frame feeding reproducing, a slow reproducing or a still reproducing, etc., the first switch 10A at an RF switch circuit 10 selects the third magnetic head 8A' and a gain switching circuit 16 is controlled so as to raise the gain of a tracking error signal obtained at a tracking error forming circuit 14 and to supply it to a signal mixing circuit 17. A capstan motor 5, on which a faster responding tracking survo is applied by the tracking error signal, the gain of which is raised, travels a tape 1 to an objected position where an objected recording track TR on the tape 1 is correctly traced by each of magnetic heads 8A and 8A' and stops it at the objected position by a brake signal.
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