Digital-analog-conversion circuit having function of automatic offset adjustment
    42.
    发明授权
    Digital-analog-conversion circuit having function of automatic offset adjustment 有权
    具有自动偏移调整功能的数模转换电路

    公开(公告)号:US06819273B2

    公开(公告)日:2004-11-16

    申请号:US10367966

    申请日:2003-02-19

    IPC分类号: H03M110

    CPC分类号: H03M1/1019 H03M1/02

    摘要: An integrated circuit includes an analog signal output unit which converts a digital output signal into at least one analog output signal, and outputs the at least one analog output signal, an analog signal input unit which converts at least one analog input signal received from an exterior into a digital input signal, a switch circuit which provides at least one signal path through which the at least one analog output signal is supplied from the analog signal output unit to the analog signal input unit as the at least one analog input signal, and an offset adjustment control circuit which supplies an output offset from the analog signal output unit to the analog signal input unit via the at least one signal path so as to detect the digital input signal inclusive of the output offset and an input offset, and cancels offsets of the analog signal output unit and the analog signal input unit in response to the output offset and the input offset obtained from the detected digital input signal.

    摘要翻译: 集成电路包括模拟信号输出单元,其将数字输出信号转换为至少一个模拟输出信号,并输出至少一个模拟输出信号;模拟信号输入单元,其转换从外部接收的至少一个模拟输入信号 提供至少一个信号路径的开关电路,所述至少一个信号路径将所述至少一个模拟输出信号从所述模拟信号输出单元提供给所述模拟信号输入单元,作为所述至少一个模拟输入信号,以及 偏移调整控制电路,其经由所述至少一个信号路径将模拟信号输出单元的输出偏移提供给模拟信号输入单元,以检测包括输出偏移和输入偏移的数字输入信号,并且抵消 模拟信号输出单元和模拟信号输入单元,以响应于从检测到的数字输入信号获得的输出偏移和输入偏移 纳尔

    Current switch and PLL in which it is used
    43.
    发明授权
    Current switch and PLL in which it is used 失效
    使用电流开关和PLL

    公开(公告)号:US6064243A

    公开(公告)日:2000-05-16

    申请号:US24058

    申请日:1998-02-17

    摘要: The present invention is a current switch, which supplies a constant current to a load circuit, and comprises: a transistor, the gate of which is supplied with a predetermined constant voltage, and the drain of which is connected to the above-mentioned load circuit; and a constant voltage supply circuit, which, in response to a control signal, supplies to the source of the above-mentioned transistor a first constant voltage, or a second constant voltage that differs from the first constant voltage, wherein when the above-mentioned first constant voltage is supplied to the above-mentioned transistor source by the above-mentioned constant voltage supply circuit, the transistor is turned ON and supplies the above-mentioned constant current to the above-mentioned load circuit, and when the above-mentioned secondary constant voltage is supplied to the above-mentioned transistor source, the transistor is turned OFF and interrupts the above-mentioned constant current. With a current switch configured as described above, high-precision current can be supplied and interrupted at the start and interruption of the current supply.

    摘要翻译: 本发明是一种向负载电路提供恒定电流的电流开关,包括:晶体管,其栅极被提供预定的恒定电压,其漏极连接到上述负载电路 ; 以及恒压供给电路,其响应于控制信号向上述晶体管的源极供给不同于第一恒定电压的第一恒定电压或第二恒定电压,其中当上述 通过上述恒压供给电路将第一恒定电压提供给上述晶体管源,晶体管导通,将上述恒定电流提供给上述负载电路,当上述二次 将恒定电压提供给上述晶体管源,晶体管截止并中断上述恒定电流。 利用如上所述配置的电流开关,可以在电源的启动和中断时提供高精度电流并中断。

    Focusing operation changeover apparatus for a camera
    44.
    发明授权
    Focusing operation changeover apparatus for a camera 失效
    照相机对焦操作切换装置

    公开(公告)号:US4893145A

    公开(公告)日:1990-01-09

    申请号:US148700

    申请日:1988-01-26

    申请人: Atsushi Matsuda

    发明人: Atsushi Matsuda

    CPC分类号: G03B3/10 G02B7/10 G02B7/28

    摘要: A group of photographic lenses are disposed in a lens barrel in such a way as to be freely movable back and forth in the direction of the optical axis thereof and the group of photographic lenses are driven by an automatic focusing means in accordance with the range of a distance from an object, whereby automatic focusing is attained. In addition, a manual control device is provided for moving the photographic lenses in the direction of the optical axis thereof. Also a connection between the manual control device and the photographic lenses is cut off by controlling a changeover device.

    摘要翻译: 一组摄影镜头设置在透镜镜筒中,以便可以在其光轴的方向上来回自由移动,并且一组摄影镜头由自动对焦装置根据 距离物体的距离,从而实现自动聚焦。 此外,提供了一种手动控制装置,用于沿着其照射方向移动摄影透镜。 而且,通过控制切换装置也可以切断手动控制装置与摄影镜头之间的连接。

    Rear wheel steering device for motorcycles
    45.
    发明授权
    Rear wheel steering device for motorcycles 失效
    摩托车后轮转向装置

    公开(公告)号:US4662469A

    公开(公告)日:1987-05-05

    申请号:US834210

    申请日:1986-02-27

    CPC分类号: B62K25/005 B62K21/00

    摘要: An embodiment of steering arrangement for motorcycles wherein the rear wheel is supported for steering movement and is mechanically coupled to the mechanism for steering the front wheel so that both wheels will be steered in unison. The rear wheel is driven by means of a shaft drive.

    摘要翻译: 用于摩托车的转向装置的实施例,其中后轮被支撑用于转向运动,并且机械地联接到用于转向前轮的机构,使得两个车轮将被一致地转向。 后轮由轴驱动驱动。

    Rear wheel steering device for motorcycles
    46.
    发明授权
    Rear wheel steering device for motorcycles 失效
    摩托车后轮转向装置

    公开(公告)号:US4655311A

    公开(公告)日:1987-04-07

    申请号:US827803

    申请日:1986-02-07

    IPC分类号: B62K21/00 B62K25/00

    CPC分类号: B62K21/00 B62K25/005

    摘要: Two embodiments of steering arrangements for motorcycles wherein the rear wheel is supported for steering movement and is mechanically coupled by a positive linkage system to the mechanism for steering the front wheels so that both wheels will be steered in unison. In one embodiment of the invention, the positive linkage system includes irreversible gearing so that forces applied to the rear wheel will not effect its steering or steering of the front wheel.

    摘要翻译: 用于摩托车的转向装置的两个实施例,其中后轮被支撑用于转向运动,并且通过正连杆系统机械联接到用于转向前轮的机构,使得两个车轮将被一致转向。 在本发明的一个实施例中,正连杆系统包括不可逆的传动装置,使得施加到后轮的力不会影响其前轮的转向或转向。

    Rear wheel steering device for motorcycles
    47.
    发明授权
    Rear wheel steering device for motorcycles 失效
    摩托车后轮转向装置

    公开(公告)号:US4650024A

    公开(公告)日:1987-03-17

    申请号:US825399

    申请日:1986-02-03

    IPC分类号: B62K21/00 B62K25/00

    CPC分类号: B62K25/005 B62K21/00

    摘要: A steering mechanism for a motorcycle or the like wherein the front and rear wheels are steered in response to operator input steering of the front wheel. The steering ratio between the front and rear wheels changes in response to a vehicle condition such as the amount of steering of the front wheel.

    摘要翻译: 一种用于摩托车等的转向机构,其中响应于前轮的操作者输入转向而使前轮和后轮转向。 前轮和后轮之间的转向比响应于诸如前轮的转向量的车辆状态而变化。

    Rear wheel steering device for motorcycles
    48.
    发明授权
    Rear wheel steering device for motorcycles 失效
    摩托车后轮转向装置

    公开(公告)号:US4650022A

    公开(公告)日:1987-03-17

    申请号:US813694

    申请日:1985-12-27

    IPC分类号: B62K21/00 B62K25/00

    CPC分类号: B62K25/005 B62K21/00

    摘要: Two embodiments of steering arrangements for motorcycles wherein the rear wheel is supported for steering movement and is mechanically coupled to the mechanism for steering the front wheel so that both wheels will be steered in unison. In one embodiment, the front and rear wheels are steered in the same direction while in the other embodiment, they are steered in opposite directions.

    摘要翻译: 用于摩托车的转向装置的两个实施例,其中后轮被支撑用于转向运动,并且机械地联接到用于转向前轮的机构,使得两个车轮将被一致地转向。 在一个实施例中,前轮和后轮以相同的方向转向,而在另一个实施例中,它们以相反方向转向。

    Peripherally reinforced laminated loudspeaker diaphragm
    49.
    发明授权
    Peripherally reinforced laminated loudspeaker diaphragm 失效
    外围加强叠层扬声器隔膜

    公开(公告)号:US4198550A

    公开(公告)日:1980-04-15

    申请号:US963902

    申请日:1978-11-27

    摘要: A diaphragm for a loudspeaker includes first and second sheet members between which a core member is sandwiched and secured so that the core member has peripheral edge portions extending between the edges of the sheet members and at which the core member is of relatively low strength. A strip-like edging member, preferably of a thermosetting resin, is secured to the peripheral edge portions of the core member and to the edges of the sheet members for increasing the rigidity of the diaphragm at its periphery and preventing unwanted vibrations thereat. A damper member may be secured to the diaphragm adjacent the edging member for movably securing the diaphragm to a loudspeaker frame.

    摘要翻译: 用于扬声器的隔膜包括第一和第二片构件,芯构件夹在中间并固定在该构件之间,使得芯构件具有在片构件的边缘之间延伸并且芯构件具有相对低的强度的周边边缘部。 优选为热固性树脂的带状边缘件固定到芯部件的周缘部分和片状部件的边缘,以增加隔膜在其周边处的刚度并防止其上的不期望的振动。 阻尼器构件可以被固定到邻近边缘构件的隔膜上,用于将隔膜可移动地固定到扬声器框架。

    Power supply circuit for use with an electrostatic transducer
    50.
    发明授权
    Power supply circuit for use with an electrostatic transducer 失效
    用于静电传感器的电源电路

    公开(公告)号:US3961202A

    公开(公告)日:1976-06-01

    申请号:US523366

    申请日:1974-11-13

    摘要: A first power supply and output circuit and a second power supply and output circuit for use with a microphone unit having an electrostatic transducer and pre-amplifier transistor is disclosed. DC power to the microphone unit is supplied from the first circuit through a single core cable. An output signal from the microphone unit also passes through the cable to an output transformer in the first circuit. The first circuit has a first battery and the second circuit a DC power source which, when connected to the first circuit, stops drain on the first battery.

    摘要翻译: 公开了一种用于具有静电换能器和前置放大器晶体管的麦克风单元的第一电源和输出电路和第二电源和输出电路。 麦克风单元的直流电源通过单芯电缆从第一电路提供。 来自麦克风单元的输出信号还通过电缆到第一电路中的输出变压器。 第一电路具有第一电池,第二电路是连接到第一电路时停止在第一电池上的直流电源。