公开(公告)号：JPH07296526A

公开(公告)日：1995-11-10

申请号：JP11454594

申请日：1994-04-28

Applicant: SONY CORP

Inventor： KUMAGAI EIJI

IPC: G11B7/085 ,  G11B19/247 ,  G11B20/14 ,  G11B27/30 ,  H03L7/10

Abstract: PURPOSE:To expand a PLL drawing frequency range with simple constitution and to shorten the time required for PLL drawing by adding a detection signal from a CLV detector to a control voltage and sending it to a voltage control oscillator. CONSTITUTION:An RF amplifier 5 binarizes the detection signal of an optical pickup 4 and amplifies it to send out as a regenerative signal Vi. The CLV detector 11 detects a linear velocity v1 of an optical disk 2 from the regenerative signal Vi, and sends out a linear velocity detection signal Ve2 according to an error with a prescribed linear velocity v0. A clock generation means 6 is constituted of a phase locked loop(PLL) provided with a phase comparator 7, an LPF 8 and the voltage control oscillator(VCO) 9, and the linear velocity detection signal Ve2 of the CLV detector 11 is added to the control voltage Ve1 of the VCO 9, and a clock signal Vc synchronizing with the regenerative signal Vi is generated. Thus, the PLL drawing frequency range of the PLL circuit 6 is expanded by the detection range much of the linear velocity v1.

公开(公告)号：JPH06124528A

公开(公告)日：1994-05-06

申请号：JP27388092

申请日：1992-10-13

Applicant: SONY CORP

Inventor： KUMAGAI EIJI

IPC: G11B7/00 ,  G11B7/004 ,  G11B11/10 ,  G11B11/105 ,  G11B19/00 ,  G11B21/12

Abstract: PURPOSE:To reduce a signal frequency processed by a reproduction circuit and to reduce the power consumption by locating an optical head at an inside position with a low recording frequency at the time of standby of a drive. CONSTITUTION:A controller 5 displaces an optical head 6 to an objective address when the next write or read command comes in the prescribed time after reading or writing operation, executing the command. If no command comes within the time, a motor 7 for slide is driven to displace the head 6 on an innermost track where the head 6 is standing by. The controller 5 identifies the track zone, outputting control signals to a binary circuit 9 and to a reference clock generation section 11. As the circuit constant of the circuit 9 is made most suitable for the lowest frequency and the readout signal frequency is also lowest, the consumption current becomes the lowest. The writing clock of the generation section 11 becomes the lowest frequency and the consumption current also becomes a minimum.

公开(公告)号：JP2012125045A

公开(公告)日：2012-06-28

申请号：JP2010273364

申请日：2010-12-08

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KUMAGAI EIJI

IPC: H02J7/00 ,  B60L11/12 ,  B60L11/14 ,  B60L11/18 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48

CPC classification number: H02J7/0068 ,  B60L11/1805 ,  B60L11/1859 ,  H01M10/44 ,  H01M10/48 ,  H01M2220/20 ,  H02J4/00 ,  H02J7/0031 ,  H02J2007/004 ,  Y02T10/7005 ,  Y02T10/705 ,  Y10T307/328

Abstract: PROBLEM TO BE SOLVED: To suspend discharge when a battery voltage becomes smaller than a specified value, or when a battery residual capacity becomes zero, and to produce a shutdown state by automatically switching off a system power source when the system power source becomes unable to be maintained any further.SOLUTION: When a battery voltage from a battery monitor 11 or SOC is determined smaller than a specified value, a discharge control switch 22 is switched off. A voltage Vx corresponding to a voltage between terminals T1 and T2 is input into an A/D port of a controller unit 21, and a value of the voltage is monitored. When the voltage Vx input into the A/D port is determined smaller than the specified value, the controller unit 21 switches off a switch circuit 12, so that a power supply to the battery monitor 11 is suspended. Also, by a switch control signal S1, a control switch 25 is switched off. As a result, an operation of a DC-DC converter 24 is suspended so that a shutdown is carried out.

Abstract translation: 要解决的问题：当电池电压变得小于指定值时，或者当电池剩余容量变为零时暂停放电，并且当系统电源自动关闭系统电源时产生关闭状态 变得无法进一步维持。 解决方案：当将来自电池监视器11或SOC的电池电压确定为小于指定值时，关闭放电控制开关22。 将与端子T1和T2之间的电压相对应的电压Vx输入到控制器单元21的A / D端口，并监视电压值。 当输入到A / D端口的电压Vx被确定为小于指定值时，控制器单元21关闭开关电路12，使得电池监视器11的电源被暂停。 此外，通过开关控制信号S1，控制开关25断开。 结果，暂停DC-DC转换器24的动作，从而进行停机。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012124043A

公开(公告)日：2012-06-28

申请号：JP2010274381

申请日：2010-12-09

Applicant: Sony Corp ,  ソニー株式会社

Inventor： ADACHI TATSUYA ,  KUMAGAI EIJI

IPC: H01M10/42 ,  B60K6/34 ,  B60K6/405 ,  B60K6/46 ,  B60L3/00 ,  B60L11/18 ,  H01R31/06 ,  H02J3/32 ,  H02J7/00

CPC classification number: H01M2/34 ,  H01H1/20 ,  H01M2/1066 ,  H01M10/0525 ,  H01M10/4207 ,  H01M10/425 ,  H01M10/482 ,  H01M2010/4271 ,  H01R13/447 ,  H01R31/08 ,  Y02E60/122 ,  Y02T10/7011

Abstract: PROBLEM TO BE SOLVED: To enable electronic components used for setting addresses, etc. to be accessed from outside a case and to surely prevent potential electric shock when setting up electronic components.SOLUTION: Connectors 3a, 3b are installed upright on the inside of a window 25 of a back plate 21 of a case. A window 26 is shut by a cover 14 which is integral with a support plate 13 of a bus bar 11. On the inside of the window 26 are disposed a slide switch 28, a rotary switch 29 and a JTAG connector 30. When the bus bar 11 is inserted into the case from the window 25, plate-like projections 12a, 12b are inserted into the connectors 3a, 3b, whereby the connectors 3a, 3b are connected to each other through the bus bar 11. When the bus bar 11 is pulled out of place by a knob 15, the connectors 3a, 3b are disconnected from each other. In this disconnected state, no high voltages are output to the outside and the window 26 is released open, allowing internal electronic components to be accessed through the window 26.

Abstract translation: 要解决的问题：使得用于设置地址等的电子部件能够从壳体外部进入，并且确保在设置电子部件时防止潜在的触电。

解决方案：连接器3a，3b直立安装在壳体的后板21的窗口25的内侧。 窗口26由与汇流条11的支撑板13成一体的盖14关闭。在窗口26的内侧设置有滑动开关28，旋转开关29和JTAG连接器30.当总线 杆11从窗口25插入壳体中，板状突起12a，12b插入到连接器3a，3b中，由此连接器3a，3b通过母线11彼此连接。当母线11 通过旋钮15拉出位置，连接器3a，3b彼此断开。 在这种断开状态下，没有高电压输出到外部，并且窗口26被释放，允许通过窗口26访问内部电子部件。版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2002025199A

公开(公告)日：2002-01-25

申请号：JP2000215861

申请日：2000-07-11

Applicant: SONY CORP

Inventor： IIDA MICHIHIKO ,  HASEGAWA HIROYUKI ,  KUMAGAI EIJI

IPC: G11B7/0037 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B19/12 ,  G11B20/12

Abstract: PROBLEM TO BE SOLVED: To discriminate kinds of disks. SOLUTION: When unique ID(identification information) is recorded on a loaded disk, the unique ID is recorded (S005) in the state in which write clock is made to be 1/N-fold, in order to be recorded with linear density made to differ from other information. Otherwise, the disk speed is made to be N-fold as a write control when recording the unique ID. Then, when reproducing it, the clock is made to be 1/N-fold or the disk speed is made to be N-fold, thereby reads the unique ID, and discriminates the kind of disk based on whether or not the unique ID could be read.

公开(公告)号：JP2001325743A

公开(公告)日：2001-11-22

申请号：JP2001067462

申请日：2001-03-09

Applicant: SONY CORP

Inventor： KUMAGAI EIJI ,  NAGASHIMA KENJI ,  MORIZUMI TOSHIO

IPC: G11B7/24 ,  G11B7/007 ,  G11B7/09 ,  G11B7/135

Abstract: PROBLEM TO BE SOLVED: To stably perform recording and/or reproduction on a high-density optical recording medium while maintaining compatibility with an optical recording medium of a different track pitch. SOLUTION: The optical recording/reproducing device is equipped with a rotary driving means for rotatably driving an information recording medium, an optical head for performing recording and/or reproduction of information signals by emitting light to the medium, and a signal processing circuit for processing signals detected by the optical head. The optical head is provided with a light source, an objective lens, and a signal detecting means. The numerical aperture NA of the objective lens is set in a range of 0.5

公开(公告)号：JP2001067674A

公开(公告)日：2001-03-16

申请号：JP24345899

申请日：1999-08-30

Applicant: SONY CORP

Inventor： KUMAGAI EIJI

IPC: G11B20/10 ,  G11B7/0045

Abstract: PROBLEM TO BE SOLVED: To attain the quick recording by recording data on an information recording medium based on a generated clock corresponding to a linear velocity signal which is generated corresponding to the linear velocity of a track to be recorded with the data of the mounted information recording medium. SOLUTION: A wobble signal of the mounted CD-R1 corresponding to the linear velocity of a pit track is generated by an RF signal processing part 43. The recording clock corresponding to the wobble signal is produced by an ATIP decoder/recording clock generating part 44. By an EFM encoder 45 and a write-in adaptive processing part 46, the data are recorded on the CD-R1 based on the recording clock.

公开(公告)号：JPH11154333A

公开(公告)日：1999-06-08

申请号：JP31965597

申请日：1997-11-20

Applicant: SONY CORP

Inventor： KUMAGAI EIJI

IPC: G11B7/085 ,  G11B7/09

Abstract: PROBLEM TO BE SOLVED: To reduce the number of parts related to focus control, particularly focus moving control with respect to an optical disk device. SOLUTION: Parts (B solid line) having positive/negative peaks generated when a reproducing laser beam is approached or alienated for L0 or L1 between focus error signals generated based on a reflection beam form a DVD (digital versatile disk) 1 having two layers of signal surfaces L0 and L1 are binarized using a prescribed threshold value (B dotted line), and a binarization focus error signal (C) is generated. By generating an actuator drive signal (D) based on such a binarization focus error signal, the focus moving control is performed. As shown by the B dotted line, two kinds of threshold values are switched, and by constituting so that a piece of comparator performs binarization processing based on these threshold values, the need of using two pieces of compactors for corresponding to two kinds of threshold valuse is eliminated.

公开(公告)号：JPH10255269A

公开(公告)日：1998-09-25

申请号：JP34982897

申请日：1997-12-18

Applicant: SONY CORP

Inventor： KUMAGAI EIJI

IPC: G11B20/10 ,  G11B7/00 ,  G11B7/005

Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for reproducing an optical disk whereby a BCA(burst cutting area) code can be correctly extracted without being adversely influenced by millor modulation to an RF signal. SOLUTION: An RF signal is, via a buffer constituted of an operational amplifier OP1, peak held in accordance with a time constant of a capacitor C1 and a resistor R1. Moreover, the signal is subjected to low pass filtration at a capacitor C2 and a resistor R2. The RF signal through the low pass filtration is binarized in a predetermined process, whereby a BCA signal is extracted from the RF signal.

公开(公告)号：JPH01194144A

公开(公告)日：1989-08-04

申请号：JP1683888

申请日：1988-01-29

Applicant: SONY CORP

Inventor： WACHI SHIGEAKI ,  KUMAGAI EIJI

IPC: G11B7/085 ,  G11B7/09

Abstract: PURPOSE:To prevent a traverse signal from contaminating a focus servo circuit and making the focus servo malfunction by inserting peak value detecting circuits and an adding circuit into the focus servo circuit. CONSTITUTION:Circuits 22A and 22B to detect and hold the positive and negative peak values of a focus error signal with a prescribed time constant and a circuit 23 to add the outputs of the hold circuits are inserted into the focus servo circuit. Consequently, when a traverse signal St by a track jump contaminates a focus error signal ef, the positive and negative peak values are detected and the respective detection values are held by the hold circuits 22A and 22B composed of the prescribed time constant, when an envelope voltages e1 and e2 are supplied to the arithmetic circuit 23, a signal which is e=e1-e2 is outputted. Consequently, the traverse signal St is removed and the focus error signal is obtained even during a traverse. Thus, the malfunction of the focus servo is eliminated.