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公开(公告)号：JPH05109003A
公开(公告)日：1993-04-30
申请号：JP26459091
申请日：1991-10-14
Applicant: SONY CORP
Inventor： KAMIIDE KAZUYA , SHIBATA MASAHIRO , TAKAOKA HIROKAZU
Abstract: PURPOSE:To eliminate that an erroneous erasure operation or the like is caused by a method wherein a head bias voltage is applied to a ring coil, for shielding, which is installed between a ring coil on a rotary head for recording and reproduction and a ring coil on a rotary head for erase. CONSTITUTION:A recording and reproducing apparatus transmits signals, via a common rotary transformer device 5, to rotary heads 2a, 2b for recording and reproduction and to a rotary head 4 for erase. Shielding coils 7, 9 are installed between the following: ring coils 6, 10 on the rotary heads 2a, 2b for recording and reproduction at the rotary transformer device 5; and a ring coil 8 on the rotary head 4 for erase. A head bias voltage is applied to the ring coils 7, 9 for shielding. Thereby, even in an ON/OFF operation in which the level of an erase signal becomes larger than required, a beat interference and an erroneous erasure operation are not caused because the recording and reproducing apparatus is magnetically shielded effectively.
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公开(公告)号：JPH07130144A
公开(公告)日：1995-05-19
申请号：JP27977193
申请日：1993-11-09
Applicant: SONY CORP
Inventor： KAMIIDE KAZUYA , KITA YUKINORI
IPC: H04N5/7826 , G11B20/00 , G11B20/12 , G11B27/029 , G11B27/036 , H04N5/91
Abstract: PURPOSE:To eliminate the deterioration of image quality and drop-out of the central part of reproduced images by operation of an erasing head at the time of after-recording. CONSTITUTION:Signals from heads 8A, 8b are supplied through a reproduction processing circuit 14 for video signals and a mask processing circuit 15 to a field memory 16. The erasing head 8E is operated by an erasing control signal from a computer 9 for control and is supplied by the mask control signal made wider in width than the erasing control signal to a mask signal generating circuit 20. Further, a writing control signal is supplied to the field memory 16 and writing in the field where the mask control signal is not generated is executed. Reading out is executed in the field where the mask control signal is generated. As a result, the signals are directly taken out in the period when the processing by the mask processing circuit 15 is not executed and the signals read out of the field memory 16 are taken out to a video output terminal 18 in the period when the processing is executed.
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公开(公告)号：JPS637553A
公开(公告)日：1988-01-13
申请号：JP15125986
申请日：1986-06-27
Applicant: SONY CORP
Inventor： MICHIURA MINORU , KAMIIDE KAZUYA
IPC: G11B15/467
Abstract: PURPOSE:To stabilize tracking, by providing a means which samples a tracking error, and a means which expands a sampling interval to a reproducing pilot signal interval different from a reference pilot signal frequency. CONSTITUTION:By expanding a sampling interval t2 by a sampling signal SP of the period t1 side of an original (tau), the interval side of a sampling hold output SH, where an ATF error descends than ever, is sampled extra, as shown in figure K. And a voltage obtained from a low-pass filter 31 becomes a voltage ED smaller than an EO, and a tracking position is shifted in a delayed direction. Therefore, when the optimum tracking position is shifted due to a step by the mounting error of a head, or dispersion in characteristics, a shift to the optimum tracking position can be obtained by adjusting the lengths of periods t1 and t3 of the sampling signal SP corresponding to the quantity of the shift, and also, noise can be reduced. In this way, it is possible to always perform reproduction at the optimum tracking position.
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公开(公告)号：JPH06165069A
公开(公告)日：1994-06-10
申请号：JP32989492
申请日：1992-11-17
Applicant: SONY CORP
Inventor： SANO HIROMICHI , KAMIIDE KAZUYA
Abstract: PURPOSE:To always connect an FM detecting signal to an input toward a BS decoder in a satellite broadcasting reception system. CONSTITUTION:When the FM detecting signal of CS broadcasting is inputted, dispersal is reduced less than 600kHz by a dispersal removing circuit 5. Emphasis is loaded by an emphasis circuit 6, and the signal is passed through an amplifier circuit 8 and supplied from an FM detecting signal output terminal 9 to a BS decoder. When the FM detecting signal of BS broadcasting is inputted, the signal is supplied through a switching circuit 2, switching circuit 7, amplifier circuit 8 and FM detecting signal output terminal 9 to the BS decoder.
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公开(公告)号：JPH05120767A
公开(公告)日：1993-05-18
申请号：JP28320691
申请日：1991-10-29
Applicant: SONY CORP
Inventor： KAMIIDE KAZUYA
IPC: G11B15/467 , G11B5/027 , H04N5/783 , H04N5/93 , H04N5/937
Abstract: PURPOSE:To project a picture eliminating a noise by making actual speeds respectively -1+0.5 times speed, + or -3+0.5 times speed, + or -5+0.5 times speed,...+ or -n+1+0.5 times speed at the time of -1 times speed, + or -3 times speed, + or -5 times speed,...+ or -n+1 times speed. CONSTITUTION:A magnetic tape 1 recorded with a video and a sound signal so as to form an inclination track is reproduced by using magnetic heads 2, 3 with a narrower width than the width of the magnetic tape 1. This device is provided with a count down circuit 23 counting a rotary pulse from a rotary pulse generating circuit 21, a counter 24 and a read/write circuit 25 generating a read/write control signal based on the output from the circuit 23 and a memory 26 reading/writing a regenerative signal by the control signal, and reproducing is performed at a reproducing speed faster than an actual reproducing speed by 0.5 times at the time of reproducing at -1, + or -3,...+ or -n+1 times speed.
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Patent Agency Ranking
公开(公告)号：JPH05109244A
公开(公告)日：1993-04-30
申请号：JP26500591
申请日：1991-10-14
Applicant: SONY CORP
Inventor： KAMIIDE KAZUYA , MOTOYOSHI NOBORU
Abstract: PURPOSE:To instantly discriminate index information and hence to improve operation convenience by forcibly displaying the index information during a given period of time when a cassette incapable of recording is set by an erasing preventing member. CONSTITUTION:When a tape cassette which is under the incapable state of recording is set by the erasing preventing member, and when the incapability of recording is detected by an erasing prevention detecting circuit 25 with a control of a control circuit 24, the reproducing state is automatically effected, for instance, for one sec. During this time, the index information in recorded information is read out, and data such as, for instance, the date, time and chapter, etc., is supplied via a display circuit 19 to a television monitor 20 to be displayed by an index decoder 22 at the time of operating an operating panel 23. Consequently, whether a magnetic tape 2 is recorded with the index information or not can instantly be discriminated, while the whole information can be confirmed, and hence the operation convenience is improved.
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公开(公告)号：JPH053677B2
公开(公告)日：1993-01-18
申请号：JP2148984
申请日：1984-02-08
Applicant: SONY CORP
Inventor： KAWAMATA MITSUO , KAMIIDE KAZUYA , ISHIKAWA NOBUYUKI , MATSUMOTO MASAMI
IPC: G11B20/06
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公开(公告)号：JPS60164963A
公开(公告)日：1985-08-28
申请号：JP2148984
申请日：1984-02-08
Applicant: SONY CORP
Inventor： KAWAMATA MITSUO , KAMIIDE KAZUYA , ISHIKAWA NOBUYUKI , MATSUMOTO MASAMI
IPC: G11B20/06
Abstract: PURPOSE:To reduce peripheral parts remarkably by constituting to obtain FM modulated aural signals of desired frequency without using a band pass filter for removing unnecessary side band component. CONSTITUTION:Aural signals L, R from input terminals 11, 12 are supplied to FM modulator circuits 12, 22, and aural signals RA, RB FM modulated using center frequency of F1=1.325MHz, f4=1.775MHz. FM modulated aural signals LA, LB of center frequency of f1, f4 of output of low pass filters 13, 23 are supplied to SSB modulator circuits 72, 82 through a recording side contact R of recording/reproducing change-over switches 71, 81, and SSB modulated by carrier CW of frequency f0=150kHz given from a terminal 1 and FM modulated aural signal RA of center frequency of f2, f3=f1+ or -f0=1.475MHz, 1.625MHz is obtained. Signals LA and RA, LB and RB are recorded on every other track slanted to the direction of running of the tape formed by heads Ha, Hb.
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公开(公告)号：JPH09116856A
公开(公告)日：1997-05-02
申请号：JP27297195
申请日：1995-10-20
Applicant: SONY CORP
Inventor： TAMAI HISAMI , YAZAWA YUICHI , KAMIIDE KAZUYA
IPC: H04N5/7826 , H04N5/91 , H04N5/93
Abstract: PROBLEM TO BE SOLVED: To provide a device which can obtain a synthesis video signal that does not cause synchronous disturbance without the sudden and large rise of cost in the device by providing a synchronous addition circuit and supplying a synchronizing signal from a synchronizing generator to the synchronous addition circuit. SOLUTION: Signals Y1 and C1 constituting a reproduced color video signal is transmitted to a circuit 1. When the signals Y1 and C1 are variable speed reproduced luminance signals, chroma signals C1 are collected to a memory, and the synchronizing signal is added to a signal in a picture unit or it is exchanged. The signals Y1 and C1 from the circuit 1 are supplied to a decoder 2 and are converted into blue and red color difference signals (R1-Y1) and (B1-Y1). Signals Y2 and C2 from a circuit 12P in a deck 12 are transmitted to a decoder 4 and are converted into blue and red color difference signals (R2-Y2) and (B2-Y2). The signals from the decoders 2 and 3 are transmitted to a circuit 4 and one screen is constituted by two pictures. Signals Y3 and SS are transmitted to a circuit 5 and the synchronizing signal SS for the signal Y3 is added.
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公开(公告)号：JPH0974527A
公开(公告)日：1997-03-18
申请号：JP22684095
申请日：1995-09-04
Applicant: SONY CORP
Inventor： KAMIIDE KAZUYA , YAZAWA YUICHI , TAMAI HISAMI
IPC: H04N5/45
Abstract: PROBLEM TO BE SOLVED: To provide a video signal processor which can simultaneously display the information on the images formed by two types of video signals on a monitor screen in an easy-to-see way and with no missing of those information. SOLUTION: A video signal processor consists of the 1st and 2nd input selection parts 1 and 2, a dual image compositing part 3 which composites the two images formed by the 1st and 2nd video signals that are selectively inputted via both parts 1 and 2 into one frame an output selection part 4 where the 3rd video signal obtained via the part 3 is supplied together with the 1st and 2nd video signals inputted selectively via the parts 1 and 2, and a control part 5 which controls the parts 1 to 4 respectively.
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