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公开(公告)号：JP2007151249A
公开(公告)日：2007-06-14
申请号：JP2005339758
申请日：2005-11-25
Inventor： NAGAI NOBUYUKI , SUDO HAJIME , TANAKA KOICHI , WATANABE YASUHIRO , TAKEDA RITSU
Abstract: PROBLEM TO BE SOLVED: To provide an actuator system which can perform linear motion or rotary motion, using a simple structure and can be employed in various applications.
SOLUTION: The actuator system comprises rectangular macromolecule actuator elements 10a-10d in an erect state from a flat plane 11 with one end thereof in the longitudinal direction that is secured thereto and bending on the application of a voltage, and a plate 12 having a plurality of claws 13, arranged on the major surface, such that the pointing direction is aligned with one of bending directions of the macromolecule actuator elements 10a-10d, where the claws 13 are arranged on the macromolecule actuator elements 10a-10d so as to touch the ends thereof, on the side opposite to the end that is secured to the flat plane 11. When the macromolecule actuator elements 10a-10d bend upon the application of a voltage, the ends of the macromolecule actuator elements 10a-10d on the side opposite to the ends thereof, secured to the flat plane 11, push the claws 13, and the plate 12 moves linearly in one direction.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：提供一种可以进行直线运动或旋转运动的致动器系统，使用简单的结构并且可以用于各种应用中。 解决方案：致动器系统包括从平面11的直立状态的矩形大分子致动器元件10a-10d，其平面11的纵向方向上的一端固定在其上并在施加电压时弯曲;板12 具有设置在主表面上的多个爪13，使得指向方向与大分子致动器元件10a-10d的弯曲方向中的一个对齐，其中爪13布置在大分子致动器元件10a-10d上，以便 在与固定在平面11上的端部相对的一侧上接触其端部。当高分子致动器元件10a-10d在施加电压时弯曲时，高分子致动器元件10a-10d的端部 一侧固定在平面11上，推动爪13，并且板12沿一个方向线性移动。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2007122870A
公开(公告)日：2007-05-17
申请号：JP2006348428
申请日：2006-12-25
Inventor： YAMAGAMI TAMOTSU , TAKEDA RITSU , KOBAYASHI SHOEI , OGIWARA KOICHIRO
IPC: G11B7/0045 , G11B7/007 , G11B7/24 , G11B7/243
Abstract: PROBLEM TO BE SOLVED: To provide a recording apparatus for recording data to a novel recording medium realizing high density and reliability in a recording/reproducing operation and facilitating the process which is performed by a drive apparatus. SOLUTION: The recording apparatus includes a recording controlling means for identifying a description of a medium, a track pitch and linear density of tracks and controlling recording operation of a recording means by reading information for identifying the description of the medium as a phase transition recording medium having the tracks wobbling based on address information and information for identifying the track pitch and linear density of the tracks when recording is performed in a recordable region. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：提供一种用于在记录/再现操作中实现高密度和可靠性的新型记录介质上记录数据的记录装置，并且便于由驱动装置执行的处理。 解决方案：记录装置包括：记录控制装置，用于识别介质的描述，轨道间距和轨道的线密度，并且通过读取用于识别介质的描述的信息作为相位来控制记录装置的记录操作 具有基于地址信息的轨道摆动的转换记录介质和用于在记录区域中执行记录时用于识别轨道的轨道间距和线密度的信息。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2004220768A
公开(公告)日：2004-08-05
申请号：JP2004072617
申请日：2004-03-15
Inventor： KOBAYASHI SHOEI , YAMAGAMI TAMOTSU , TAKEDA RITSU , SAKO YOICHIRO
IPC: G11B7/24 , G11B7/0045 , G11B7/007 , G11B20/10 , G11B20/12
Abstract: PROBLEM TO BE SOLVED: To record data in an exact position in a disk in which an address is recorded by wobbling. SOLUTION: The track of an optical disk is separated into a plurality of clusters for recording data, and a link area is formed between the clusters. The cluster and the link area are constituted by frame units in which 85 bytes constitute one frame. One cluster is constituted of 28 frames, and 16 KB. The link area is constituted of 2 frames. For both of the cluster and the cluster area, a 2-bytes FS (Frame Sync: synchronous signal) is arranged at the head of each frame. COPYRIGHT: (C)2004,JPO&NCIPI
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公开(公告)号：JPH10124877A
公开(公告)日：1998-05-15
申请号：JP27820496
申请日：1996-10-21
Applicant: SONY CORP
Inventor： TAKEDA RITSU , SHIMAZU AKIRA , YAMAMURA SHINICHI , SEO KATSUHIRO
Abstract: PROBLEM TO BE SOLVED: To reproduce continuous data by detecting the track jump starting position where a land part and a group part continue, and thereby continuously tracking at the next track node without passing through the end of a track. SOLUTION: The mark detecting circuit 34 of a land group switching circuit 33 detects the track jump starting position where a land part and a group part continue, from a RF signal from a RF amplifier circuit 24. In addition, rotation is detected by a rotary encoder 36 through a switch 35. Successively, a jump pulse is generated from a synchronization detecting circuit 37 and a jump pulse generating circuit 38. A tracking servo circuit 12 corrects a phase delay by an LPF and a phase compensating circuit 27 for a signal from a tracking error detecting circuit 26, and adds a jump pulse by an adder 28. After that, with the output amplified by a tracking driver 29, a track position is determined with the tracking servo signal output by a tracking coil 30 in an optical pickup 2.
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公开(公告)号：JPH103667A
公开(公告)日：1998-01-06
申请号：JP17428996
申请日：1996-06-13
Applicant: SONY CORP
Inventor： KOBAYASHI SHOEI , TAKEDA RITSU , YAMAGAMI TAMOTSU , MASUDA SHOZO
Abstract: PROBLEM TO BE SOLVED: To revise a synchronizing signal position at every recording and to prevent thermal stress from storing in a disk by selecting a value of DPS (data position shift) at random, dividing the data to a prescribed length and adding forward/backward link areas. SOLUTION: A frame address detection circuit 37 reads out an address signal from an RF signal from an optical head 32 to output it to a control circuit 38. At this time, the circuit 38 detects a position of a clock synchronous mark to read a track number. At a recording time, a recording/reproducing circuit 33 selects the value of the DPS at random, and divides the data to the blocks of the prescribed length, and adds respectively the forward/backward link areas to the front/rear of the obtained blocks to form a recording/reproducing unit. Then, the circuit 33 records the data on prescribed areas according to the detected addresses. Then, the synchronizing signal position recorded on a rewritable disk is revised at every recording. Thus, the thermal stress is prevented from storing in a recording medium due to repeated irradiation on the same position by a laser beam.
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Patent Agency Ranking
公开(公告)号：JPH09106549A
公开(公告)日：1997-04-22
申请号：JP17429096
申请日：1996-06-13
Applicant: SONY CORP
Inventor： KOBAYASHI SHOEI , YAMAGAMI TAMOTSU , TAKEDA RITSU , SAKO YOICHIRO
Abstract: PROBLEM TO BE SOLVED: To make possible precise access. SOLUTION: In the case that a track is wobbled by a prescribed carrier, and an address information is recorded, a clock synchronous mark (fine clock mark) with a frequency higher than the frequency of the carrier is multiplexed on the carrier to be recorded. The clock is generated based on the clock synchronous mark, and a position is detected.
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公开(公告)号：JPH0836725A
公开(公告)日：1996-02-06
申请号：JP17078594
申请日：1994-07-22
Applicant: SONY CORP
Inventor： SEKO SATORU , TAKEDA RITSU
Abstract: PURPOSE:To prevent a read error and a write error by bringing the track center offset close to zero and minimizing the track shift at the read time and the write time. CONSTITUTION:An offset correction value-calculating circuit 16 calculates offset correction value at an optional radial position in accordance with a track number supplied from a positional error signal-operating circuit 18. The offset correction value from the calculating circuit 16 and offset amount from an offset- detecting circuit 14 are sent to an offset-operating circuit 15. The offset- operating circuit 15 calculates offset amount of the center of an optional track. A track position-correcting circuit 13 adds the operation result of the positional error signal-operating circuit 18 to the operation result of the offset-operating circuit 15 and subjects the added value to a PID treatment. The PID output is supplied to a supporting arm-driving/controlling circuit 22 via an amplifier 21. The supporting arm-driving/controlling circuit 22 drives/controls a supporting arm having a reproducing head HR and a recording head HW not shown at its front end.
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公开(公告)号：JPH07249269A
公开(公告)日：1995-09-26
申请号：JP29254094
申请日：1994-11-28
Applicant: SONY CORP
Inventor： TOMIZAKI TOME , TAKEDA RITSU
Abstract: PURPOSE:To quickly and surely generate a clock signal with a simple constitution. CONSTITUTION:It is discriminated by a lock detecting circuit 26 whether a PLL circuit 25 is in a lock state or not. When it is discriminated by an output of the lock detecting circuit 26 that the PLL circuit 25 is in a lock state, a CPU 30 controls a sine wave generating circuit 31 and generates a sine wave signal. This sine wave signal is supplied to a voice coil motor driving circuit 16, the voice coil motor driving circuit 16 drives a voice coil motor 15 corresponding to the sine wave signal. Consequently, a reproducing head 12 is rocked so as to cross track 3 of plural lines formed on a disk 1. Thereby, a probability that data recorded in the track 3 is erroneously detected as a clock mark, is reduced, a clock mark 2 stamped and formed on the disk 1 can be surely detected by a clock extracting circuit 20.
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公开(公告)号：JPH06236630A
公开(公告)日：1994-08-23
申请号：JP4464493
申请日：1993-02-09
Applicant: SONY CORP
Inventor： TAKEDA RITSU , HAYASHI NOBUHIRO , YAMAMOTO NORIYUKI
IPC: G11B20/10 , G11B5/012 , G11B5/48 , G11B5/596 , G11B19/02 , G11B19/04 , G11B20/12 , G11B20/18 , G11B21/00 , G11B21/10 , G11B27/30 , H03M13/23 , H03M13/12
Abstract: PURPOSE:To accurately reproduce a sector number recorded in the ID recording area of each sector even in a recording mode. CONSTITUTION:A track is devided into plural sectors and each sector is devided into a servo data recording area and a data recording area. An ID recording area 41H is arranged on the head of the data recording area. The ID recording area 41H is devided into a sector number recording area 41A and a track number recording area 41B and the sector numbers and the track numbers are respectively recorded on the areas 41H and 41A. The sector number recording area 41A is not only formed on tracks 10A to 10D but also on parts between tracks in a radial direction continuously. Thus, a specific track is traced by a recording head 31 and even in the recording mode where a position shifted from a specific track is traced by a reproducing head 30, the sector number is accurately reproduced.
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公开(公告)号：JPH06223502A
公开(公告)日：1994-08-12
申请号：JP5776493
申请日：1993-02-23
Applicant: SONY CORP
Inventor： TOMIZAKI TOME , TAKEDA RITSU , SEKO SATORU , ISHIOKA HIDEAKI
IPC: G11B20/10
Abstract: PURPOSE:To make a clock signal accurately follow the eccentricity of a disk by correcting the phase or the frequency of the clock signal in accordance with a stored disk eccentric quantity. CONSTITUTION:Eccentric quantity data inside a storage section 26 is read synchronized with the rotation of the disk, converted into a speed signal by a feed forward compensator 29 after converted by a D/A converter 28 and feed- forward impressed additionally as the control voltage of the VCO 35 of a PLL circuit 30. Thus, the VCO 35 is controlled by not only an output from a phase comparator 31 but also a track circular eccentricity display voltage arriving via a switch 34 from the storage section 26. Therefore, the VCO 35 is followed by a closed loop operation generated from the disk and an open loop operation is carried out as well by a signal from the storage section 26 for predicting a current time eccentricity quantity.
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