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1. 发明专利

DE69507080T2 未知
公开(公告)号：DE69507080T2
公开(公告)日：1999-05-27
申请号：DE69507080
申请日：1995-06-07
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MORIYA MITSUROU , HIROSE NAMIO , YAMAGUCHI OSAMU , FUKUSHIMA YOSHIHISA
IPC分类号： G11B7/007 , G11B7/013 , G11B20/10 , G11B20/12 , G11B20/18 , G11B27/30 , G11B27/32
摘要： An optical information recording medium includes a track storing information in a plurality of sectors, wherein the track is formed spirally or concentrically. One sector includes a plurality of frames and one frame includes a resync mark region, a frame address region, an information region, and a postamble region. In the information region in the first frame, identification information (sector address number) for identifying the position of the sector is stored. In the information region in each frame, information obtained as a result of scrambling performed based on a value of the identification information is stored.

2. 发明专利

DE69507080D1 未知
公开(公告)号：DE69507080D1
公开(公告)日：1999-02-18
申请号：DE69507080
申请日：1995-06-07
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MORIYA MITSUROU , HIROSE NAMIO , YAMAGUCHI OSAMU , FUKUSHIMA YOSHIHISA
IPC分类号： G11B7/007 , G11B7/013 , G11B20/10 , G11B20/12 , G11B20/18 , G11B27/30 , G11B27/32
摘要： An optical information recording medium includes a track storing information in a plurality of sectors, wherein the track is formed spirally or concentrically. One sector includes a plurality of frames and one frame includes a resync mark region, a frame address region, an information region, and a postamble region. In the information region in the first frame, identification information (sector address number) for identifying the position of the sector is stored. In the information region in each frame, information obtained as a result of scrambling performed based on a value of the identification information is stored.

3. 发明专利

DE69223108D1 未知
公开(公告)号：DE69223108D1
公开(公告)日：1997-12-18
申请号：DE69223108
申请日：1992-09-04
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NISHIDA MASAFUMI , YAMAGUCHI OSAMU , FUJIOKA SOUICHIROU , OKAMOTO HIROSHI , GOTOH YOSHIHO
IPC分类号： G11B15/43 , G11B15/46 , G11B15/54
摘要： A tape speed command signal is differentiated, and in a multiplier a torque necessary for acceleration or deceleration of a take-up reel motor is calculated depending on a moment of inertia of a take-up reel and a winding radius of the tape on the take-up reel. The calculated result is added to a torque command produced by a feedback control system.

4. 发明专利

DE69231716T2 未知
公开(公告)号：DE69231716T2
公开(公告)日：2001-06-21
申请号：DE69231716
申请日：1992-07-23
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NISHIDA MASAFUMI , YAMAGUCHI OSAMU , FUJIOKA SOUICHIROU , OKAMOTO HIROSHI , GOTOH YOSHIHO
IPC分类号： G11B15/43 , G11B15/46 , G11B15/54
摘要： A torque command given to a tape running unit for drawing out and driving a tape wound on a first reel is modulated by a torque modulator depending on a moment of inertia of the first reel, a winding radius of the tape wound in the first reel, a moment of inertia and a rotating radius of the tape running unit, which are detected by a parameter detector. The first motor is responsive to the modulated torque command for rotating the first reel, thereby keeping the tension of the tape constant.

5. 发明专利

DE69223108T2 未知
公开(公告)号：DE69223108T2
公开(公告)日：1998-05-07
申请号：DE69223108
申请日：1992-09-04
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NISHIDA MASAFUMI , YAMAGUCHI OSAMU , FUJIOKA SOUICHIROU , OKAMOTO HIROSHI , GOTOH YOSHIHO
IPC分类号： G11B15/43 , G11B15/46 , G11B15/54
摘要： A tape speed command signal is differentiated, and in a multiplier a torque necessary for acceleration or deceleration of a take-up reel motor is calculated depending on a moment of inertia of a take-up reel and a winding radius of the tape on the take-up reel. The calculated result is added to a torque command produced by a feedback control system.

6. 发明专利

DE69231716D1 未知
公开(公告)号：DE69231716D1
公开(公告)日：2001-04-12
申请号：DE69231716
申请日：1992-07-23
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NISHIDA MASAFUMI , YAMAGUCHI OSAMU , FUJIOKA SOUICHIROU , OKAMOTO HIROSHI , GOTOH YOSHIHO
IPC分类号： G11B15/43 , G11B15/46 , G11B15/54
摘要： A torque command given to a tape running unit for drawing out and driving a tape wound on a first reel is modulated by a torque modulator depending on a moment of inertia of the first reel, a winding radius of the tape wound in the first reel, a moment of inertia and a rotating radius of the tape running unit, which are detected by a parameter detector. The first motor is responsive to the modulated torque command for rotating the first reel, thereby keeping the tension of the tape constant.

7. 发明专利

JPH10134380A TRACKING CONTROL DEVICE 失效
公开(公告)号：JPH10134380A
公开(公告)日：1998-05-22
申请号：JP28952396
申请日：1996-10-31
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMADA SHINICHI , EDAHIRO YASUAKI , YAMAGUCHI OSAMU
IPC分类号： G11B7/085 , G11B7/09
摘要： PROBLEM TO BE SOLVED: To enhance tracking control pull-in performance without always widening a tracking control band by raising a gain of a D signal component generating system of a PID control system during the time from immediately after operating a tracking control means to control of a tracking control system. SOLUTION: At the time of operating the tracking control, a terminal (a) of a microcomputer 201 is made to be H level to operate switches 133 and 139 to connect with their respective terminals (b) and (a). Consequently, a digital filter 204 is released from its clear state, and a focusing lens 103 is driven in accordance with a TE signal. The level change of the terminal (a) from L level to H level is detected by a timer 209 to make its terminal (b) H level during a prescribed period of time from the point of this changing time. After a lapse of the prescribed time, the gain of the D signal component generating system becomes a normal gain. Consequently, the normal tracking control is carried out. In other words, the control band is widened during the prescribed period of time, thus enhancing the tracking control pull-in performance.

8. 发明专利

JPH1083630A CARRIER AND METHOD FOR RECORDING OPTICAL INFORMATION, OPTICAL INFORMATION RECORDER AND OPTICAL INFORMATION REPRODUCING DEVICE USING THEM 失效
公开(公告)号：JPH1083630A
公开(公告)日：1998-03-31
申请号：JP26257197
申请日：1997-09-26
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MORIYA MITSURO , YAMAGUCHI OSAMU , FUKUSHIMA YOSHIHISA , HIROSE TSUNEO
IPC分类号： G11B20/12 , G11B7/00 , G11B7/004 , G11B7/007
摘要： PROBLEM TO BE SOLVED: To enable stable tracking control even when a track pitch is narrowed by reducing signal correlation between adjacent tracks and making an effect of cross talk random. SOLUTION: An address giving circuit 502 divides the user data at every 2048B, and gives respective heads information 32B of a sector address and a sub-code to send them to an ECC conversion circuit(ECC) 503. The ECC 503 converts the data to code words to send them successively from upward the first column of the patterns of the code words to a sramble circuit 504. The scramble circuit 504 is one performing scramble processing to the data to make them random, and scrambles the data excepting the 32B equivalent to the sector address and sub-code to send them to a frame formatter 506 through a modulation circuit 505. Then, the frame formatter circuit 506 performs required signal processing to output as the recording data.

9. 发明专利

JPH06274905A TRACKING ERROR DETECTING DEVICE 失效
公开(公告)号：JPH06274905A
公开(公告)日：1994-09-30
申请号：JP5986293
申请日：1993-03-19
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ISHIBASHI HIROMICHI , YAMAGUCHI OSAMU
IPC分类号： G11B7/09
摘要： PURPOSE:To enable detecting a tracking error signal to be conducted with a sufficient sensitivity even if a track pitch is narrow by making the multiplying calculations between a first and second beams and the second and a third beams with a first and second mutiplication calculating means respectively and making a difference between two outputs of the first and second multiplication calculating means. CONSTITUTION:An optical disk medium 100 is irradiated with three laser beams 5a to 5c from a laser light emitting means 1 by a diffraction grating 2 and objective lens 4, refrected beams are received by light receiving elements 6 (6a to 6c) via a half mirror. Multiplication meanses 9 and 10 make multiplying calculations between the output of the element 6a and the output of the element 6b passed through a delaying means 7 and between the output of the element 6a and the output of the element 6c passed through a delaying means 8 respectively. Next, a differential calculating means 13 makes a differential calculation between each output of multipliers 9 and 10 via respective low pass meanses 11, 12 to be a tracking error signal TE. Thus, the signal TE having an amplitude amplified with a sufficient sensitivity is detected even if the track pitch is the order of twice as many as a normal pitch.

10. 发明专利

JPH06162122A PROCESSOR FOR GENERATING COMPONENT DETAIL DATA 失效
公开(公告)号：JPH06162122A
公开(公告)日：1994-06-10
申请号：JP30747492
申请日：1992-11-18
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMAGUCHI OSAMU
IPC分类号： G06F17/50 , G06F15/60
摘要： PURPOSE:To improve the reliability of the component detail data as to the component detail data generation processor of a CAD system by providing consistency between drawing data and component detail data which are already generated. CONSTITUTION:A component detail data generating process part 40 consists of an arrangement data input part 41, an attribute data extraction part 42, a data collation and retrieval part 43, a data editing part 44, a data update part 45 which constitutes a data alteration part 45a, and a process control part 46 which controls respective processes.

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