公开(公告)号：EP0439116A2

公开(公告)日：1991-07-31

申请号：EP91100751.6

申请日：1991-01-22

申请人： NEC Corporation

发明人： Murata, Yukio

IPC分类号： H02J7/10

CPC分类号： H02J7/008 ,  Y10S320/19

摘要： In a charge device having a storage cell terminal (11) to be connected to a storage cell (12) to be charged, a trickle charge terminal (13) for receiving a trickle charge voltage, and a boost charge terminal (14) connected to the storage cell terminal for receiving a boost charge voltage and including a constant current circuit (16) for causing a constant current to flow from the trickle charge terminal to the storage cell terminal, a boost charge detector detects the boost charge voltage to produce a boost charge signal when the boost charge terminal is supplied with the boost charge voltage. An interrupting circuit interrupts the constant current when the boost charge detector circuit produces the boost charge signal. The constant current circuit may comprise a transistor (161) having a base electrode supplied with the trickle charge voltage to produce the constant current. In this event, the interrupting circuit is a conductor (191) connected between the boost charge detector and the base electrode of the transistor (161).

摘要翻译： 在具有要连接到要充电的存储单元（12）的存储单元终端（11）的充电装置中，用于接收涓流充电电压的涓流充电端子（13）和连接到 用于接收升压充电电压的存储单元端子，并且包括用于使恒定电流从涓流充电端子流向存储单元端子的恒流电路（16），升压充电检测器检测升压充电电压以产生升压 当升压充电端子被提供有升压充电电压时的充电信号。 当升压充电检测器电路产生升压充电信号时，中断电路中断恒定电流。 恒流电路可以包括具有提供有涓流充电电压的基极以产生恒定电流的晶体管（161）。 在这种情况下，中断电路是连接在升压电荷检测器和晶体管（161）的基极之间的导体（191）。

公开(公告)号：EP0272068A2

公开(公告)日：1988-06-22

申请号：EP87310974.8

申请日：1987-12-14

申请人： NEC CORPORATION

发明人： Murata, Yukio

IPC分类号： H04M1/60 ,  H04M9/08

CPC分类号： H04M1/605

摘要： A microphone circuit includes a microphone unit (27) operated by a DC bias voltage for providing a microphone output signal superposed on the DC bias voltage, a constant current source (26) connectable in parallel with the microphone unit, a first control switch for controlling the parallel connection of the constant current source to change the DC bias voltage, and a voltage comparator (24) connected in parallel with the microphone unit for comparing the bias voltage with a predetermined reference voltage to detect the status of the control switch and to provide a control signal.

摘要翻译： 麦克风电路包括由DC偏置电压操作的麦克风单元（27），用于提供叠加在DC偏置电压上的麦克风输出信号;可与麦克风单元并联连接的恒流源（26）;用于控制的第一控制开关 恒流源的并联连接以改变直流偏置电压，以及与麦克风单元并联连接的电压比较器（24），用于将偏置电压与预定参考电压进行比较，以检测控制开关的状态并提供 控制信号。

公开(公告)号：EP0439116A3

公开(公告)日：1993-04-07

申请号：EP91100751.6

申请日：1991-01-22

申请人： NEC Corporation

发明人： Murata, Yukio

IPC分类号： H02J7/10

CPC分类号： H02J7/008 ,  Y10S320/19

摘要： In a charge device having a storage cell terminal (11) to be connected to a storage cell (12) to be charged, a trickle charge terminal (13) for receiving a trickle charge voltage, and a boost charge terminal (14) connected to the storage cell terminal for receiving a boost charge voltage and including a constant current circuit (16) for causing a constant current to flow from the trickle charge terminal to the storage cell terminal, a boost charge detector detects the boost charge voltage to produce a boost charge signal when the boost charge terminal is supplied with the boost charge voltage. An interrupting circuit interrupts the constant current when the boost charge detector circuit produces the boost charge signal. The constant current circuit may comprise a transistor (161) having a base electrode supplied with the trickle charge voltage to produce the constant current. In this event, the interrupting circuit is a conductor (191) connected between the boost charge detector and the base electrode of the transistor (161).

公开(公告)号：EP2651147A1

公开(公告)日：2013-10-16

申请号：EP13175217.2

申请日：2007-01-26

申请人： NEC Corporation

发明人： Kuroda, Jun ,  Murata, Yukio ,  Mori, Ukyou ,  Sasaki, Yasuhiro

IPC分类号： H04R1/26 ,  H04M1/00 ,  H04M1/02 ,  H04R1/02 ,  H04R3/00 ,  H04R17/00 ,  H04R19/00

CPC分类号： H04R1/02 ,  H04M1/0214 ,  H04M1/03 ,  H04M1/04 ,  H04R17/00 ,  H04R19/00 ,  H04R2499/11

摘要： In a folding electronic device, a pair of micro-speakers is mounted in the upper housing, and a vibrating actuator is mounted in the lower housing. Both these micro-speakers and the vibrating actuator reproduce sound. The vibrating actuator causes the lower housing and external housing to vibrate, and in particular supplements the acoustic characteristics of the micro-speakers in the low-frequency region. Furthermore, in cases here sound is reproduced using the mobile terminal device constituting this electronic device, sound is reproduced by mounting the mobile terminal device in an external housing, charging device, or cradle.

摘要翻译： 在折叠电子装置中，一对微型扬声器安装在上壳体中，并且振动致动器安装在下壳体中。 这两个微型扬声器和振动执行机构都会再现声音。 振动致动器使得下壳体和外壳体振动，并且特别地补充了低频区域中的微型扬声器的声学特性。 此外，在使用构成该电子装置的移动终端装置再现声音的情况下，通过将移动终端装置安装在外部壳体，充电装置或支架中来再现声音。

公开(公告)号：EP0342049B1

公开(公告)日：1995-09-13

申请号：EP89304829.8

申请日：1989-05-12

申请人： NEC CORPORATION

发明人： Murata, Yukio

IPC分类号： H04B1/16 ,  H04Q7/32

CPC分类号： H04W52/0254 ,  Y02D70/00

摘要： A power supply control circuit for use in an automobile telephone to which power is supplied in response to a power switch signal and to an ignition voltage. The power switch signal is generated by a power switch in a handset of the telephone. The ignition voltage is produced by turning on an ignition key. The power supply control circuit comprises an emergency switch which manually produces an emergency switch signal. An emergency switch monitor circuit monitors the state of the emergency switch and produces an emergency control signal when it receives the emergency switch signal. Upon the emergency control signal, an ignition voltage control circuit produces the ignition voltage regardless of the condition of the ignition key. Upon the emergency control signal, a power switch control circuit produces the power switch signal regardless of the condition of the power switch. By receiving the ignition voltage from the ignition voltage control circuit and the power switch signal from the power switch control circuit, the automobile telephone can quickly be turned on in an emergency situation.

公开(公告)号：EP0439116B1

公开(公告)日：1995-07-26

申请号：EP91100751.6

申请日：1991-01-22

申请人： NEC Corporation

发明人： Murata, Yukio

IPC分类号： H02J7/10

CPC分类号： H02J7/008 ,  Y10S320/19

公开(公告)号：EP0272068B1

公开(公告)日：1993-03-10

申请号：EP87310974.8

申请日：1987-12-14

申请人： NEC CORPORATION

发明人： Murata, Yukio

IPC分类号： H04M1/60 ,  H04M9/08

CPC分类号： H04M1/605

公开(公告)号：EP2908554A1

公开(公告)日：2015-08-19

申请号：EP15155345.0

申请日：2012-03-08

申请人： NEC Corporation

发明人： Onishi, Yasuharu ,  Kuroda, Jun ,  Komoda, Motoyoshi ,  Kishinami, Yuichiro ,  Satou, Shigeo ,  Murata, Yukio ,  Kawashima, Nobuhiro ,  Uchikawa, Tatsuya

IPC分类号： H04R17/00 ,  H04R3/00 ,  H03B28/00

CPC分类号： H03B28/00 ,  H04R17/00 ,  H04R2217/03 ,  H04R2499/11

摘要： Provided is an oscillator (100) including a piezoelectric body (70) that has a plurality of protrusions (72) on one surface thereof, a plurality of electrodes (80) that are respectively provided on the plurality of protrusions (72) so as to be separated from each other, and a plurality of electrodes (82) that are provided on the other surface opposite to the one surface of the piezoelectric body (70) so that each of the electrodes faces only one electrode (80). Thus, it is possible to prevent variation in acoustic characteristics from occurring. Therefore, the oscillator capable of improving the acoustic characteristics of an electronic device is provided.

摘要翻译： 提供了一种振荡器（100），其包括在其一个表面上具有多个突起（72）的压电体（70），分别设置在多个突起（72）上的多个电极（80），以便 彼此分离，并且设置在与压电体（70）的一个表面相对的另一表面上，使得每个电极仅面对一个电极（80）的多个电极（82）。 因此，可以防止发生声学特性的变化。 因此，提供了能够改善电子设备的声学特性的振荡器。

公开(公告)号：EP2908554B1

公开(公告)日：2017-09-06

申请号：EP15155345.0

申请日：2012-03-08

申请人： NEC Corporation

发明人： Onishi, Yasuharu ,  Kuroda, Jun ,  Komoda, Motoyoshi ,  Kishinami, Yuichiro ,  Satou, Shigeo ,  Murata, Yukio ,  Kawashima, Nobuhiro ,  Uchikawa, Tatsuya

IPC分类号： H04R17/00 ,  H04R3/00 ,  H03B28/00

CPC分类号： H03B28/00 ,  H04R17/00 ,  H04R2217/03 ,  H04R2499/11

公开(公告)号：EP0342049A3

公开(公告)日：1991-09-18

申请号：EP89304829.8

申请日：1989-05-12

申请人： NEC CORPORATION

发明人： Murata, Yukio

IPC分类号： H04B1/16 ,  H04Q7/32

CPC分类号： H04W52/0254 ,  Y02D70/00

摘要： A power supply control circuit for use in an automobile telephone to which power is supplied in response to a power switch signal and to an ignition voltage. The power switch signal is generated by a power switch in a handset of the telephone. The ignition voltage is produced by turning on an ignition key. The power supply control circuit comprises an emergency switch which manually produces an emergency switch signal. An emergency switch monitor circuit monitors the state of the emergency switch and produces an emergency control signal when it receives the emergency switch signal. Upon the emergency control signal, an ignition voltage control circuit produces the ignition voltage regardless of the condition of the ignition key. Upon the emergency control signal, a power switch control circuit produces the power switch signal regardless of the condition of the power switch. By receiving the ignition voltage from the ignition voltage control circuit and the power switch signal from the power switch control circuit, the automobile telephone can quickly be turned on in an emergency situation.

摘要翻译： 一种在汽车电话中使用的电源控制电路，响应于电源开关信号和点火电压而供电的汽车电话。 电源开关信号由电话机的手机中的电源开关产生。 通过打开点火钥匙产生点火电压。 电源控制电路包括手动产生紧急开关信号的紧急开关。 应急开关监控电路监视紧急开关的状态，并在接收到紧急开关信号时产生应急控制信号。 在紧急控制信号中，点火电压控制电路产生点火电压，而与点火钥匙的状况无关。 在紧急控制信号时，电源开关控制电路不管电源开关的状况如何，都会产生电源开关信号。 通过从点火电压控制电路接收到点火电压和来自电源开关控制电路的电源开关信号，汽车电话在紧急情况下可以快速打开。