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公开(公告)号：JPH08185663A
公开(公告)日：1996-07-16
申请号：JP33766094
申请日：1994-12-28
Applicant: SONY CORP
Inventor： KAWASHIMA TETSUJI , SATO MASASHI
IPC: G11B19/28 , G11B19/247
Abstract: PURPOSE: To shorten an access time and to reduce the power consumption by controlling the rotational speed of a spindle motor so that the rotational speed of a disk shaped storage medium become higher as compared with a speculated standard rotational speed. CONSTITUTION: Frequency-dividing ratios M and N of frequency-dividing circuits 42, 43 are set so as to correspond to laser beam irradiating positions by a system control circuit 41 and the rotational speed is changed by frequency- dividing ratios M and N recorded in a frequency-dividing ratio table 46 so as to correspond to the laser beam irradiating positions. Consequently, the rotational speed of a CD-ROM 2 is successively changed from a quadruple speed to a sextuple speed toward from an innermost peripheral to an outermost peripheral. Thus, since the variable range of the rotational speed is reduced as compared with that in the case of a CLV method and a time required for changing over the rotational speed is shortened by the amount, a seek time is shortened and also the power consumption is reduced.
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公开(公告)号：JPH05307782A
公开(公告)日：1993-11-19
申请号：JP11025792
申请日：1992-04-28
Applicant: SONY CORP
Inventor： WACHI SHIGEAKI , SATO MASASHI
IPC: G11B7/09 , G11B11/10 , G11B11/105
Abstract: PURPOSE:To obtain a head position controller holding a distance between the medium of a magneto-optical disk, etc., and a head (a driven body) constantly and applying a servo stably even when an irradiation beam from a light emitting element is made to even between the recorded area of the medium and the unrecorded area. CONSTITUTION:A pair of a light emitting and a light receiving elements 5 and 7 arranged on the driven body (head) 11 are fine-vibrated by the wobbling signal of a wobbling signal generation circuit 18 and the servo is performed by an output synchronous detecting an output signal obtained from the receiving element 7 and the distance between the magneto-optical disk 3 and the driven body 11 is held constant.
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公开(公告)号：JP2010044954A
公开(公告)日：2010-02-25
申请号：JP2008208268
申请日：2008-08-12
Inventor： SENNAMI HIROMITSU , SATO MASASHI
CPC classification number: H01M2/0275 , H01M2/0267 , H01M2/1061 , H01M2/34 , H01M10/0525 , H01M10/44
Abstract: PROBLEM TO BE SOLVED: To provide a battery pack in which ESD (electrostatic discharge) resistance can be improved without largely changing the design of the battery pack and a battery housing part of an electronic apparatus body.
SOLUTION: The battery pack is provided with an outer package material and a battery element housed in the outer package material. The outer package material is a laminated material having a conductive layer, and a positive electrode terminal or a negative electrode terminal of the battery element is electrically connected to the conductive layer. The conductive layer of the outer package material is set at the same potential as the positive electrode or the negative electrode of the battery element.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 解决的问题：提供一种电池组，其中可以改善ESD（静电放电）电阻，而不会大大改变电池组的设计和电子设备主体的电池壳体部分。 解决方案：电池组设置有外包装材料和容纳在外包装材料中的电池元件。 外包装材料是具有导电层的层叠材料，并且电池元件的正极端子或负极端子电连接到导电层。 外包装材料的导电层被设定为与电池元件的正极或负极相同的电位。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2001347338A
公开(公告)日：2001-12-18
申请号：JP2001112753
申请日：2001-04-11
Applicant: SONY CORP , SANKO SEISAKUSHO KK
Inventor： SATO MASASHI , TAWARA KOICHI
Abstract: PROBLEM TO BE SOLVED: To improve and stabilize a working precision of a shape of a coining opening part, a positioning precision and a dimension evaluation in a coining process. SOLUTION: This method has a process to form an opening 33 to a member 31 to be formed and a process to coin the member 31 to be formed by using a die 39 which has a die main body 37 deciding an opening width W11 and is integrally provided with a protrusion shaped die part 38 for an edge-dam at the outside of the die main body 37.
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公开(公告)号：JPH10125009A
公开(公告)日：1998-05-15
申请号：JP27034096
申请日：1996-10-11
Applicant: SONY CORP
Inventor： NAKAGAWA TOSHIYUKI , INO HIROYUKI , YOSHIMURA SHUNJI , KAI SHINICHI , NIIFUKU YOSHIHIDE , IIDA MICHIHIKO , KAWASHIMA TETSUJI , SATO MASASHI
Abstract: PROBLEM TO BE SOLVED: To improve a bit error rate and secure a skew margin by a method wherein channel bit data are corrected when there is a location which does not meet conditions of the minimum continuous length and the maximum continuous length within the channel bit data obtained by binarizing a signal read out of a recording medium. SOLUTION: By using an n-tuple (n: an integer of 2 of more) clock obtained by making n-tuple a channel clock of reproduced data by a bit clock generating part 2, channel bit data which do not meet conditions of the minimum continuous length d7 of the same symbol are detected by a (d'-1) detection part 4, and a correction position of the channel bit data which have the continuous length (d'-1) of the same symbol is designated by a correction bit position designation part 5, and the channel bit data are corrected so that the minimum continuous length of the same symbol is set to be d' by a data correction part 6.
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Patent Agency Ranking
公开(公告)号：JPH05313747A
公开(公告)日：1993-11-26
申请号：JP14343092
申请日：1992-05-08
Applicant: SONY CORP
Inventor： SATO MASASHI
IPC: G05D3/12 , G11B11/10 , G11B11/105 , G11B21/21
Abstract: PURPOSE:To sufficiently suppress the dynamic deviation by detecting a disturbance component from inputted data to generate an operation center signal changed in accordance with the disturbance. CONSTITUTION:An input signal I from an input terminal 1 is outputted to a subtractor 2, and a part of an output signal O from an output terminal 7 is fed back to the subtractor 2. The subtractor 2 subtracts the output signal O from the input signal I and outputs the result to an adder 3. The adder 3 adds the output from the subtractor 2 and a disturbance N (t) from an input terminal 4 and outputs the result to an adder 5. The adder 5 adds the signal inputted from a D/A converter 11 and the output of the adder 3 and outputs the result to a gain controlled amplifier 6. This amplifier 6 multiplies the output signal from the adder 5 by a gain G and outputs the output signal O. A part of the error signal from the sub-tractor 2 is multiplied in a gain controlled amplifier 8 by a gain C+1 and is converted by an A/D converter 9, and data is operated by a CPU 10 and is outputted as data which sets the operation center of automatic control.
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公开(公告)号：JPH04271041A
公开(公告)日：1992-09-28
申请号：JP7740191
申请日：1991-02-25
Applicant: SONY CORP
Inventor： SATO MASASHI
IPC: G11B7/09 , G11B11/10 , G11B11/105
Abstract: PURPOSE:To improve S/N and to realize a stable servo mechanism. CONSTITUTION:A light beam reflected by a recording medium is bisected and one beam of light is detected by a photodetector 42a and the other beam of the light is detected by the photodetector 42b respectively. A difference between the output of the photodetectors 42a and 42b is operated by a differential amplifier 59, a signal Si corresponding to a recorded signal is obtained. The difference between the sum of the outputs of the regions A and C of the photodetector 42a and the regions E and G of the photodetector 42b and between the sum of the output of the regions B and D of the photodetector 42a and the regions F and H of the photodetector 42b is operated by the differential amplifier 60, a focusing error signal Sf by a so-called astigmatic method is obtained. The difference between the sum of the output of the regions A and D of the photodetector 42a and the regions E and H of the photodetector 42b and between the sum of the output of the regions B and C of the photodetector 42a and the regions F and G of the photodetector 42b is operated by the differential amplifier 61, a tracking error signal St by a so-called push-pull method is obtained.
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公开(公告)号：JPH11306572A
公开(公告)日：1999-11-05
申请号：JP11520298
申请日：1998-04-24
Applicant: SONY CORP
Inventor： TSUKADA HIROSHI , NAGASHIMA KENJI , SETO HIDEKAZU , SATO MASASHI
Abstract: PROBLEM TO BE SOLVED: To make it possible to achieve a high speed and stable skew servo operation by detecting a tilted state of an optical axis of a laser beam from an optical head to a disk at intervals of every n rotations of a rotating disk-like recording medium and also at a timing when a rotated angle position of the disk-like recording medium takes a specific position, and executing skew control. SOLUTION: Skew control processing is executed at every predetermined interruption timing, and as variables to be used, there are a skew error signal total value, a count value of FG pulses, and an average value of skew error signals, and an upper and an lower limit values for which an appropriate skew error range is set are used. Ordinary processing is executed once a rotation, and the skew control is executed at a timing when a rotated angle position of the disk takes a specific position. In the case of a double-speed, the processing is executed every two rotations, for a quadruple speed, every four rotations, and for an octuple speed, every eight rotations, and even if the disk speed is increased, the skew operation is properly executed.
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公开(公告)号：JPH10241302A
公开(公告)日：1998-09-11
申请号：JP4667197
申请日：1997-02-28
Applicant: SONY CORP
Inventor： IIDA MICHIHIKO , KAWASHIMA TETSUJI , SATO MASASHI , MASUDA SHOZO
Abstract: PROBLEM TO BE SOLVED: To provide a disk device capable of reproducing recorded data correctly even though an area where the reliability of data is low is generated at a specific position being on a disk where a synchronizing signal is to be recorded. SOLUTION: The comparison error signal between the reproduced RF signal read out from a disk 100 and a channel clock signal PLCK is inputted from a phase/frequency comparing part 12 to a voltage controlled oscillator(VCO) 15, which generates a PLCK with a frequency in accordance with the voltage of the comparison error signal. In a data detecting part 16, data are taken out from the reproduced RF signal. When a sync pattern is detected from the data correctly in a sync pattern detecting and interpolating part 17, the comparison error signal is inputted to the VCO 15 as it is and when it is not detected correctly, a sample-and-hold part 14 holds the voltage of the comparison error signal by a control signal from a control part 20. At this time, the sync pattern interpolating operation of the sync pattern detecting and interpolating part 17 is suspended.
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公开(公告)号：JPH0916264A
公开(公告)日：1997-01-17
申请号：JP16667995
申请日：1995-06-30
Applicant: SONY CORP
Inventor： KAWASHIMA TETSUJI , SATO MASASHI , YOSHIKAWA KAZUYUKI
Abstract: PURPOSE: To speed up seek operation when the motor controller is applied to an optical disk drive device. CONSTITUTION: The motor controller is constituted by providing a storage means 21 stored with a 1st data table constituted by arraying reference movement quantities θ(t) for acceleration of every time, an arithmetic means 23 which is activated at the time of the switching of a driving signal to a DC motor 1 and corrects a reference movement quantity θ(t) read out of the storage means 21 to convert it into a reference movement quantity θ'(t) for deceleration, and a control part 25 which outputs the reference movement quantity θ(t) for acceleration from the storage means 21 to a feedback control system 2 before the switching time of the driving signal to the DC motor 1 is elapsed and outputs the reference movement quantity θ'(t) from the arithmetic means 23 to the feedback control system 2 after the switching time is elapsed; and the respective reference movement quantities in the 1st data table stored in the storage means 21 are defined with a function based upon the function of a transient area of time variation in the angular speed of the DC motor 1.
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