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1. 发明专利

JPH08331509A IMAGE RECORDING MEDIUM, ITS MANUFACTURE AND REPRODUCING METHOD 失效
公开(公告)号：JPH08331509A
公开(公告)日：1996-12-13
申请号：JP15518995
申请日：1995-05-30
申请人： VICTOR COMPANY OF JAPAN
发明人： MIYAZAKI TAKESHI
IPC分类号： H04N5/92 , G11B27/00 , H04N19/102 , H04N19/134 , H04N19/146 , H04N19/177 , H04N19/196 , H04N19/423 , H04N19/50 , H04N19/503 , H04N19/593 , H04N7/32
摘要： PURPOSE: To facilitate the special reproduction such as reverse reproduction and reverse slow reproduction by dividing moving image information to be recorded into plural chapters and applying coding and recording to dynamic image information in the forward direction of divided chapters and dynamic image information in the reverse direction edited in advance corresponding to the dynamic image information in the forward direction. CONSTITUTION: In the case of editing an image, the dynamic image information in a VTR tape 1a on which dynamic image information in the forward direction is recorded is divided for each chapter in response to the information content, an image in reverse direction is generated for each chapter, the dynamic images in the reverse direction are collected as required, the dynamic image information in the reverse direction is recorded on a VTR tape 1b together with the dynamic image information in the forward direction recorded on the VTR tape 1a to edit them unifiedly. In this case, after dynamic image information sets C1A, C2A,...CNA in the forward direction are recorded on the VTR tape 1b, dynamic image information sets C1B, C2B,...CNB in the reverse direction are recorded on the VTR tape 1b as required. Then the moving information recorded on the VTR tape 1b is coded by a high efficiency coder 2 to obtain compressed data and a recording device 3 records the data onto an optical disk 4.

2. 发明专利

JPH0721618A OPTICAL DISK AND PRODUCTION THEREOF 失效
公开(公告)号：JPH0721618A
公开(公告)日：1995-01-24
申请号：JP18760693
申请日：1993-06-30
申请人： VICTOR COMPANY OF JAPAN
发明人： NISHIZAWA AKIRA , KONDO TETSUYA , MIYAZAKI TAKESHI
IPC分类号： G11B13/04 , G11B5/72 , G11B11/10 , G11B11/105
摘要： PURPOSE:To obtain a high-quality low-cost optical disk having a flat contact surface with a head by superposing an optical recording film, a protective film, a magnetic film and a protective film for the magnetic film on a discoid transparent substrate. CONSTITUTION:Signal pits 2 are formed on a transparent polycarbonate resin substrate 1. A reflecting film 3 of Al is formed on the entire surface and a protective film 4 of a UV-curing resin for the reflecting film and a magnetic film 5 contg. magnetic powder dispersed in a UV-curing are superposed by spin coating. After curing with UV, a protective film 6 for the magnetic film is formed. By this structure, the flatness of the contact surface with a head is made so high that scuffing is not caused. Since production is carried out by utilizing the conventional producing process, a low-cost high-quality removable optical disk is obtd.

3. 发明专利

JPS6449181A MAGNETIC DISK DEVICE 失效
公开(公告)号：JPS6449181A
公开(公告)日：1989-02-23
申请号：JP20601187
申请日：1987-08-19
申请人： VICTOR COMPANY OF JAPAN
发明人： MIYAZAKI TAKESHI , OSADA YUTAKA
IPC分类号： G11B21/10
摘要： PURPOSE:To make data tracks high density without using a complex circuit by detecting a servo pattern recorded on a magnetic disk by a means other than a magnetic recording means and executing accurate tracking servo. CONSTITUTION:The magnetic disk 1 has the servo pattern (SP) for tracking servo concentrically or spirally formed by a means other than a magnetic recording means and two collating burst signals V1, V2 magnetically recorded in an area other than a data area A0 so as to be shifted from each other in the diameter direction on the basis of the SP. A magnetic head 4 for recording/ reproducing a data signal is provided with a sensor 2 for detecting the SP at a position separated by a prescribed distance, and when the SP is out from the detecting range, on-track is immediately executed by a tracking control circuit 4 for comparing the levels of the signals V1, V2 and detecting and collating the quantity of off-track, a head actuator driving circuit 11 and a head actuator 8. Thereby, the interval between tracks can be shortened and high density can be attained.

4. 发明专利

JPS60140575A TRACKING CONTROLLING DEVICE 失效
公开(公告)号：JPS60140575A
公开(公告)日：1985-07-25
申请号：JP24745383
申请日：1983-12-28
申请人： VICTOR COMPANY OF JAPAN
发明人： MIYAZAKI TAKESHI , OKAZAKI SHIYOUICHI
IPC分类号： G11B21/10 , H04N5/76
摘要： PURPOSE:To simplify circuit configuration and to control stably by comparatively calculating FM signal levels during vertical fly-back period and displacing a reproducing heat in tracking direction corresponding to a judging signal according to the relation in magnitude. CONSTITUTION:The output of a video signal circuit 4 is stored in a memory 13 constituted of RAM, etc., extracting vertical fly-back period by a vertical fly- back period extracting circuit 10, holding the peak value by a holding circuit 11 and converting to a digital signal by an A/D converter 12. An arithmetic judging section 14 compares and calculates the level from the memory 13 at every specified time and outputs a judging signal according to the result. Arithmetic and judging action is made at every vertical period, and the head 3 is moved to make the output level of the memory 13 maximum. A radius difference correcting value corresponding to the position of disk 16 of the head 3 in radial direction is set, and the output of the memory 13 is corrected basing on the correcting value, and the malfunction is prevented by minimizing the width of forced displacement of the head 3.

5. 发明专利

JP2000215452A OPTICAL DISK RECORDING/REPRODUCING DEVICE AND OPTICAL DISK 失效
公开(公告)号：JP2000215452A
公开(公告)日：2000-08-04
申请号：JP1111499
申请日：1999-01-19
申请人： VICTOR COMPANY OF JAPAN
发明人： OSADA YUTAKA , HASEGAWA YUICHI , MIYAZAKI TAKESHI
IPC分类号： G11B7/09 , G11B7/00 , G11B7/0037 , G11B7/0045 , G11B7/005 , G11B20/10 , G11B20/12 , G11B20/18
摘要： PROBLEM TO BE SOLVED: To record densely the data and to effectively maximally use the capacity of an optical disk while preventing the occurrence of error during reproduction by preventing an unrecorded gap and the overwrite from occurring in a linking part when the linking is performed related to a recording type optical disk of a DVD-R, etc., and to prevent an error from occurring due to deviation of a focal point during linking and to surely record the data when the linking is performed in such a recording type optical disk. SOLUTION: A video disk recorder 100 is provided with a function performing the linking for the optical disk 1. The recorder 100 is provided with a prescribed data built-in circuit 13 (fixed data supply means) supplying the prescribed fixed data ϕ as the reproducing data, and when the linking is performed, the linking is performed in a CPM area on the optical disk 1, and the fixed data ϕ are recorded beforehand in the CPM area, and when the CPM area performed with the linking are reproduced, the fixed data ϕsupplied from the prescribed data built-in circuit 13 are read out as the reproducing data.

6. 发明专利

JPH10234003A REPRODUCING DEVICE AND REPRODUCING METHOD FOR IMAGE RECORDING MEDIUM 失效
公开(公告)号：JPH10234003A
公开(公告)日：1998-09-02
申请号：JP7342398
申请日：1998-03-06
申请人： VICTOR COMPANY OF JAPAN
发明人： MIYAZAKI TAKESHI , YOKOUCHI KENTARO
IPC分类号： H04N5/92 , H04N19/44 , H04N19/46 , H04N19/50 , H04N19/503 , H04N19/587 , H04N19/593 , H04N19/70 , H04N7/32
摘要： PROBLEM TO BE SOLVED: To easily attain special reproduction especially in the case of the reproduction method for a recording medium on which image information subject to high efficiency coding is recorded. SOLUTION: The method has a step where in the case of displaying only an image of an independent frame such as image search, a signal read from a recording medium is stored in a buffer means 5 and read control information to control an information read step in relation to the stored signal amount is fed to a read control step and a step where independent frame access information denoting a position at which independent frames before and after a current independent frame is recorded. Furthermore, in the read control step, the information read step is controlled in response to reproduction mode information, independent frame access information and read control information to reproduce the independent frame recorded on the image recording medium.

7. 发明专利

JPH1021638A OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS 失效
公开(公告)号：JPH1021638A
公开(公告)日：1998-01-23
申请号：JP18867796
申请日：1996-06-28
申请人： VICTOR COMPANY OF JAPAN
发明人： KURODA MIKIYA , MIYAZAKI TAKESHI , NAGANO HIROBUMI
IPC分类号： G11B19/12 , G11B7/00 , G11B7/004 , G11B7/125 , G11B7/135
摘要： PROBLEM TO BE SOLVED: To provide an apparatus which can discriminate between DVD-R (Digital Video Disk Recordable) and a CD-R(Compact Disk Recordable) to prevent breakdown of the dye layer of CD-R. SOLUTION: This apparatus is constituted to execute the recording and reproducing operations by loading a DVD-R. In this case, before stating the recording or reproducing operation, whether the disk loaded is the DVD-R or CD-R is detected by a color sensor 24 and a disk discriminator 25. When the disk is a DVD-R, the recording or reproducing operation is executed depending on the operation mode with an LD driver 23, a pickup 20 and a servo system 21, etc. When the disk is CD-R, CD-R is exhausted to the outside of apparatus or warning display is executed by a loading system and warning system 26.

8. 发明专利

JPH076392A DISK DEVICE 失效
公开(公告)号：JPH076392A
公开(公告)日：1995-01-10
申请号：JP17254093
申请日：1993-06-18
申请人： VICTOR COMPANY OF JAPAN
发明人： OSADA YUTAKA , MIYAZAKI TAKESHI
IPC分类号： G11B7/095 , G11B19/04 , G11B19/06
摘要： PURPOSE:To suppress the control error synchronizing with the rotation of a disk in various control of operation in a disk device by a servo mechanism. CONSTITUTION:A rotational speed of a disk is varied in accordance with a recording or reproducing position on the disk, thereby recording or reproducing of the disk is performed. And this device is provided with a control error detecting means 5 which detects a control error to be controlled, a servo amplifier 10 which amplifies an output of the control error detecting means 5 including a band amplifying filter 1 capable of externally controlling an amplifying band, and a rotational speed detecting means 6 which detects rotational speed of the disk. And rotational speed is controlled in accordance with an output of the rotational speed detecting means 6 so that the maximum frequency maximum in the amplification degree of the band amplifying filter 1 is made rotational frequency of the disk or an integral multiple thereof. Therefore, a control error caused by the eccentricity of the disk and the wobbling of surface or the like can be reduced even if secondary resonance exists in a servo mechanism.

9. 发明专利

JPH06333256A DISK DRIVING DEVICE 失效
公开(公告)号：JPH06333256A
公开(公告)日：1994-12-02
申请号：JP14017393
申请日：1993-05-19
申请人： VICTOR COMPANY OF JAPAN
发明人： IYONO TAKAHIKO , MIYAZAKI TAKESHI
IPC分类号： G11B7/095
摘要： PURPOSE:To obtain an excellent signal from a disk by detecting the inclination of the disk in a radial direction without using an optical detector different from an optical pickup. CONSTITUTION:The optical pickup 1 can control an angle of a disk D in a radial direction by an angle adjusting mechanism 6. A CPU 3 fetchs the amplitude of an emvelope of an RF signal reproduced by the optical pickup 1, and obtains the optimum angle of the optical pickup corresponding to the inclination of the disk D in the radial direction based on the amplitude information to control the angle adjusting mechanism 6 so that the angle of the optical pickup 1 in the radial direction of the disk D becomes the optimum angle.

10. 发明专利

JPS626407A DISK DRIVING DEVICE 失效
公开(公告)号：JPS626407A
公开(公告)日：1987-01-13
申请号：JP14297685
申请日：1985-06-29
申请人： VICTOR COMPANY OF JAPAN
发明人： KANEKO KEIICHI , MIYAZAKI TAKESHI
IPC分类号： G11B5/09
摘要： PURPOSE:To improve the efficiency of a format by providing a delay means for delaying an erase gate signal for turning on/off a tonnel erase head from a write gate signal for turning on/off a recording/reproducing head by a time corresponding to respective detected outputs of a detecting means. CONSTITUTION:Respective delay lines 41-4n delay a write gate signal S2 by respective inherent delay times and output erase gate signals S1. The signals S1 are supplied to an AND gate circuit 15 to control the gate of the circuit 15. On the other hand, erase current is supplied from an erasing circuit 16 to the circuit 15 and the erase current is supplied to an E head 2 only for a period that the gate is opened to executed tonnel erasing. Thereby, the erase gate signals S1 obtained by delaying the write gate signal S2 only by the delay time in each cylinder are obtained. Consequently, the efficiency of the format is improved.

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