公开(公告)号：EP2980954A4

公开(公告)日：2016-11-23

申请号：EP14772691

申请日：2014-03-06

Applicant: SONY CORP

Inventor： TAKIZAWA SHUICHI ,  SUGENO NAOYUKI ,  UMETSU KOJI ,  KUMAGAI EIJI ,  SATO BUNYA ,  KHADE ANIKET ,  ADACHI TATSUYA ,  CHINEN ATSUSHI ,  ASAI HISATO ,  WATANABE KOHKI

IPC: H02J7/00 ,  H01M10/44 ,  H02J7/02

CPC classification number: H02J7/0019 ,  H01M10/441 ,  H01M10/46 ,  H01M10/482 ,  H02J7/0021 ,  H02J7/0024 ,  Y02T10/7055

Abstract: There is provided a power storage device including a plurality of modules each including secondary batteries, a charging switch that controls charging to the secondary batteries, a discharging switch that controls discharging of the secondary batteries, and a voltage measuring unit that measures a voltage of the module, and a switch control unit that controls one or both of the charging switch and the discharging switch. The modules are connected in parallel. The switch control unit maintains an on state of the discharging switch for at least one of the modules for a predetermined period, and controls the charging switch of the module in which a maximum module charging current estimated based on the voltage of the module is a predetermined value or less, to be in an on state.

公开(公告)号：EP2632020A4

公开(公告)日：2016-03-09

申请号：EP11834367

申请日：2011-10-12

Applicant: SONY CORP

Inventor： KUMAGAI EIJI

IPC: H02J7/02 ,  G01R31/36

CPC classification number: H01M10/4207 ,  B60L11/1855 ,  G01R31/3658 ,  H01M10/0525 ,  H01M10/482 ,  H01M2220/20 ,  H02J7/0014 ,  H02J7/0021 ,  H02J7/0024 ,  H02J7/0031 ,  Y02E60/122 ,  Y02T10/7005 ,  Y02T10/7011 ,  Y02T10/705

Abstract: A connection mode of a plurality of arbitrarily connected storage units is detected and the plurality of storage units is controlled according to the detected connection mode. Six storage modules MOD1 to MOD6 are connected in series. A total voltage V(Total) and individual output voltages V(1) to V(6) of respective storage modules are supplied to an output controller ICNT. A controller PR of the output controller ICNT determines the connection mode depending on whether a determination equation is satisfied. When the number of storage modules is set to N, the total output voltage is set to V(Total), the individual output voltages are set to V(1),V(2),..., and V(N), and the number of parallels of the connection mode is set to M, (determination equation: V(1) = V(2) = ... = V(N) = (1/M) x V(Total)) is used. When the determination equation is satisfied, (N/M) parallel M series is determined.

公开(公告)号：EP3029800A4

公开(公告)日：2017-03-01

申请号：EP14831708

申请日：2014-05-29

Applicant: SONY CORP

Inventor： BELLALA RAGHUNATH ,  KUMAGAI EIJI

IPC: H02J7/00 ,  H02J1/00 ,  H02J3/38 ,  H02J7/35

CPC classification number: H02J1/00 ,  H02J3/383 ,  H02J7/0065 ,  H02J7/0068 ,  H02J7/35 ,  H02J2007/0095 ,  Y02E10/563 ,  Y02E10/566

Abstract: A first power source line disposed between a positive electrode side of an electricity storage unit and a first external terminal, a second power source line disposed between a negative electrode side of the electricity storage unit and a second external terminal, a power source circuit connected to both the first and second power source lines and configured to supply an output voltage to a control circuit in an operating state, a power source control circuit configured to control an operating state and a non-operating state of the power source circuit, a first control signal generation circuit configured to supply a first control signal corresponding to transition of an external voltage applied to the first external terminal and the second external terminal to the power source control circuit to set the power source circuit in an operating state for a prescribed time, and a second control signal generation circuit configured to generate a second control signal that allows the power source circuit to be set in an operating state continuously by the control circuit to which an output voltage of the power source circuit is supplied are included.

Abstract translation: 设置在蓄电部的正极侧和第一外部端子之间的第一电源线，设置在蓄电部的负极侧的第二电源线和第二外部端子之间的电源电路， 第一和第二电源线并且被配置为在操作状态下向控制电路提供输出电压;电源控制电路，被配置为控制电源电路的操作状态和非工作状态;第一控制 信号生成电路，被配置为将施加到第一外部端子和第二外部端子的外部电压的转变对应的第一控制信号提供给电源控制电路，以将电源电路设置在规定时间的运行状态，以及 第二控制信号生成电路，被配置为产生允许电力的第二控制信号 包含供给电源电路的输出电压的控制电路连续地设定在工作状态的电路。

公开(公告)号：EP0903735A4

公开(公告)日：2000-01-05

申请号：EP98900047

申请日：1998-01-06

Applicant: SONY CORP

Inventor： KUMAGAI EIJI ,  NAGASHIMA KENJI ,  TSUKADA FUTOSHI

IPC: G11B19/12

CPC classification number: G11B19/12

Abstract: A system controller (30) discriminates the kinds of a plurality of optical disks (D) having different numbers of signal recording layers based on a focus error signal generated by means of an RF block (21) from the output of a servo processor (31), which is outputted when the processor detects the reflected light of laser light from the signal surface of the disk (D), at the time of focusing the laser light on the signal surface of the disc (D) by displacing an objective lens in the direction of optical axis, while the signal surface of the disk (D) is irradiated with the laser light through the objective lens and sets the operation mode of the disks (D) in accordance with the kinds of the disks (D).

公开(公告)号：CA2941349C

公开(公告)日：2021-04-27

申请号：CA2941349

申请日：2015-03-18

Applicant: SONY CORP

Inventor： SUGENO NAOYUKI ,  ASAI HISATO ,  KUMAGAI EIJI ,  IMAMURA NORITOSHI ,  UMETSU KOJI

IPC: H02J7/00 ,  B60L53/60 ,  B60L53/62

Abstract: There is provided a charging device including a charging voltage providing unit configured to provide a maximum charging voltage for an electricity storage unit, wherein the electricity storage unit includes a plurality of battery cells, and wherein the maximum charging voltage satisfies an equation (1) below: Maximum Charging Voltage = Total Battery Voltage + (Fully Charged Voltage - Maximum Cell Voltage)* n (1) wherein n represents a total number of the battery cells connected in series.

公开(公告)号：MY136886A

公开(公告)日：2008-11-28

申请号：MYPI20014445

申请日：2001-09-21

Applicant: SONY CORP

Inventor： NAGASHIMA KENJI ,  KUMAGAI EIJI ,  KUMAI SATOSHI ,  MORIZUMI TOSHIO

IPC: G11B7/0045 ,  G11B7/125 ,  G11B7/126

Abstract: AFTER THE INITIATION OF WRITING AN OUTPUT SIGNAL FROM AN LPF IS SAMPLED IN CORRESPONDENCE WITH A PORTION WITH A PREDETERMINED PULSE WIDTH OF RECORDING DATA, SO AS TO OBTAIN A PIT LEVEL. IN THE RESULTANT SIGNAL, ITS VARYING PORTIONS WHICH CORRESPOND TO THE MULTI-PULSE TRAINS OF THE WRITE SIGNAL ARE SMOOTHED. A CONTROLLER MODIFIES A LEVEL OF A TARGET LEVEL SIGNAL TO BE SUPPLIED TO AN APC CIRCUIT IN SUCH A MANNER THAT THE PIT LEVEL BECOMES AN OPTIMUM PIT LEVEL WHICH HAS BEEN OBTAINED PRIOR TO THE INITIATION OF WRITING.

公开(公告)号：DE69615599T2

公开(公告)日：2002-06-27

申请号：DE69615599

申请日：1996-04-03

Applicant: SONY CORP

Inventor： KUMAGAI EIJI

IPC: G11B20/10 ,  G11B7/00 ,  G11B7/0037 ,  G11B7/005 ,  G11B19/247 ,  G11B19/28 ,  G11B20/14

Abstract: An optical disk apparatus has an optical pickup (8), a cosine equalizer, a cosine equalizer (23) having frequency characteristics including a boosting frequency for a frequency component which has a frequency that is about twice the frequency of an RF signal reproduced from recorded data with a shortest data length, and a digital signal processor (12) for generating recorded data from the RF signal. Irrespective to the type of reproduced data from the optical pickup (8), the optical disk apparatus greatly increases the quality of the reproduced data as information transfer accuracy as compared with a conventional disk optical system.

公开(公告)号：ID20980A

公开(公告)日：1999-04-01

申请号：ID980076

申请日：1998-01-06

Applicant: SONY CORP

Inventor： KUMAGAI EIJI ,  NAGASHIMA KENJI ,  TSUKADA FUTOSHI

IPC: G11B19/12 ,  C11B19/12

Abstract: A laser light beam is illuminated via an objective lens on the signal surface of an optical disc and the objective lens is displaced by a servo processor along the optical axis for focussing search to generate focussing error signals by a RF block from a detected output of the laser light by the signal surface of the optical disc. Based on these focussing error signals, a system controller discriminates the types of the optical disc having different numbers of signal recording layers for setting an operating mode in keeping with the types of the optical disc.

公开(公告)号：SG38935A1

公开(公告)日：1997-04-17

申请号：SG1996006275

申请日：1996-04-03

Applicant: SONY CORP

Inventor： KUMAGAI EIJI

IPC: G11B20/10 ,  G11B7/00 ,  G11B7/0037 ,  G11B7/005 ,  G11B19/247 ,  G11B19/28 ,  G11B20/14 ,  G11B20/22

Abstract: An optical disk apparatus has an optical pickup (8), a cosine equalizer, a cosine equalizer (23) having frequency characteristics including a boosting frequency for a frequency component which has a frequency that is about twice the frequency of an RF signal reproduced from recorded data with a shortest data length, and a digital signal processor (12) for generating recorded data from the RF signal. Irrespective to the type of reproduced data from the optical pickup (8), the optical disk apparatus greatly increases the quality of the reproduced data as information transfer accuracy as compared with a conventional disk optical system.

公开(公告)号：CA2916170A1

公开(公告)日：2015-02-05

申请号：CA2916170

申请日：2014-05-29

Applicant: SONY CORP

Inventor： BELLALA RAGHUNATH ,  KUMAGAI EIJI

IPC: H02J7/00

Abstract: The present invention is provided with: a first power source line that is disposed between a first external terminal and the positive electrode side of an electricity storage unit; a second power source line that is disposed between a second external terminal and the negative electrode side of the electricity storage unit; a power source circuit that is connected to both the first and second power source lines, and in an operating state, supplies an output voltage to a control circuit; a power source control circuit that controls the operating state and non-operating state of the power source circuit; a first control signal generation circuit that supplies to the power source control circuit a first control signal corresponding to the transition of the external voltage imposed on the first external terminal and the second external terminal, causing the power source circuit to be an the operating state for a predetermined time; and a second control signal generation circuit that generates a second control signal that causes the power source circuit to be in a sustained operating state by means of the control circuit to which the output voltage of the power source circuit is supplied.