公开(公告)号：US20030052741A1

公开(公告)日：2003-03-20

申请号：US10244932

申请日：2002-09-16

Applicant: Alps Electric Co., Ltd.

Inventor： Yutaka Chiba ,  Hiroki Noumi ,  Yasuhiro Ikarashi

IPC: H03B001/00

CPC classification number: H03B5/1847 ,  H03B2201/0208 ,  H03B2201/0258

Abstract: A voltage controlled oscillator comprises an oscillation transistor, a varactor diode, a resonance circuit which is coupled to the oscillation transistor, and a switching diode which changes over a resonance frequency of the resonance circuit, wherein the resonance circuit includes a first strip conductor which is served for grounding a cathode of the varactor diode in terms of direct current and a second strip conductor which is served for coupling a cathode of the varactor diode with the oscillation transistor, the switching diode is connected to the first strip conductor in parallel in terms of high frequency and has a cathode thereof grounded, and a control voltage which is served for changing a capacitive value of the varactor diode is applied to a connection point between the cathode of the varactor diode and the second strip conductor through a choke inductor.

Abstract translation: 压控振荡器包括振荡晶体管，变容二极管，耦合到振荡晶体管的谐振电路和转换谐振电路的谐振频率的开关二极管，其中谐振电路包括第一条导体， 用于将变容二极管的阴极与直流电接地，第二带状导体用于将变容二极管的阴极与振荡晶体管耦合，开关二极管与第一带状导体并联连接 高频并且其阴极接地，并且用于改变变容二极管的电容值的控制电压通过扼流电感器施加到变容二极管的阴极与第二带状导体之间的连接点。

公开(公告)号：US20020125958A1

公开(公告)日：2002-09-12

申请号：US10087313

申请日：2002-03-01

Applicant: Alps Electric Co., Ltd.

Inventor： Yasuhiro Ikarashi

IPC: H03L007/00

CPC classification number: H03B5/1841

Abstract: A dual-band oscillator includes a first oscillation circuit and a second oscillation circuit. A first emitter bias resistor for setting the emitter current of a first oscillation transistor in the first oscillation circuit is provided between the emitter of the first oscillation transistor and a second inductance element in the second oscillation circuit. A second emitter bias resistor for setting the emitter current of a second oscillation circuit in the second oscillation circuit is provided between the emitter of the second oscillation transistor and a first inductance element in the first oscillation circuit.

Abstract translation: 双频带振荡器包括第一振荡电路和第二振荡电路。 在第一振荡晶体管的发射极和第二振荡电路中的第二电感元件之间，设置用于设定第一振荡电路中的第一振荡晶体管的发射极电流的第一发射极偏置电阻。 在第二振荡晶体管的发射极和第一振荡电路中的第一电感元件之间，设置用于设定第二振荡电路中的第二振荡电路的发射极电流的第二发射极偏置电阻。

公开(公告)号：US20030056132A1

公开(公告)日：2003-03-20

申请号：US10245096

申请日：2002-09-17

Applicant: Alps Electric Co., Ltd.

Inventor： Senichiro Yatsuda ,  Yasuhiro Ikarashi ,  Yoshitaka Hirose

IPC: G06F001/26 ,  G06F001/32 ,  G06F017/50

CPC classification number: G06F1/324 ,  G06F1/06 ,  G06F1/08 ,  G06F1/3203 ,  Y02D10/126

Abstract: A computer of the present invention comprises: a CPU; plural peripheral devices controlled by the CPU; a data transmission bus between the CPU and the peripheral devices and between the peripheral devices; and a clock signal source for supplying clock signals for CPU operation and data transmission, wherein the clock signal source is constituted by a PLL synthesizer, and two clock signals (one for the CPU and the other for the bus) are outputted from the PLL synthesizer to arrest an occurrence of unnecessary signals other than the clock signals.

Abstract translation: 本发明的计算机包括：CPU; 由CPU控制的多个外围设备; 在CPU和外围设备之间以及外围设备之间的数据传输总线; 以及用于提供用于CPU操作和数据传输的时钟信号的时钟信号源，其中时钟信号源由PLL合成器构成，并且两个时钟信号（一个用于CPU，另一个用于总线）从PLL合成器输出 以阻止除了时钟信号之外的不必要的信号的发生。

公开(公告)号：US20010030583A1

公开(公告)日：2001-10-18

申请号：US09836819

申请日：2001-04-17

Applicant: Alps Electric Co., Ltd.

Inventor： Yasuhiro Ikarashi

IPC: H03B005/18

CPC classification number: H03B5/1847

Abstract: A voltage controlled oscillator includes an oscillating transistor having a collector coupled to ground at high frequencies. A first end of a microstrip is coupled to a base of the oscillating transistor by a first varactor diode. A second end of the microstrip is coupled to a second varactor diode. The length of the microstrip is about null to about null of the wavelength of an oscillation frequency.

Abstract translation: 压控振荡器包括具有以高频耦合到地的集电极的振荡晶体管。 微带的第一端通过第一变容二极管耦合到振荡晶体管的基极。 微带的第二端耦合到第二变容二极管。 微带的长度为振荡频率波长的约1/2至约3/4。

公开(公告)号：US20040130401A1

公开(公告)日：2004-07-08

申请号：US10736924

申请日：2003-12-15

Applicant: Alps Electric Co, Ltd.

Inventor： Yasuhiro Ikarashi

IPC: H03B001/00

CPC classification number: H03B19/12

Abstract: A signal generator according to the present invention includes a voltage controlled oscillation circuit and frequency divider circuits for frequency-dividing an oscillation signal output from the voltage controlled oscillation circuit. The signal generator also includes a control voltage input terminal and frequency division signal output terminals. The control voltage input terminal inputs an external control voltage for determining the frequency of the oscillation signal. The frequency division signal output terminals output frequency division signals output from the corresponding frequency divider circuits.

Abstract translation: 根据本发明的信号发生器包括压控振荡电路和用于对从压控振荡电路输出的振荡信号进行分频的分频器电路。 信号发生器还包括一个控制电压输入端和分频信号输出端。 控制电压输入端子输入用于确定振荡信号频率的外部控制电压。 分频信号输出端子输出从相应的分频电路输出的分频信号。

公开(公告)号：US20020125946A1

公开(公告)日：2002-09-12

申请号：US10095888

申请日：2002-03-12

Applicant: Alps Electric Co., Ltd.

Inventor： Yasuhiro Ikarashi

IPC: H03G003/20

CPC classification number: H03F3/19 ,  H03F2200/48 ,  H03F2200/75

Abstract: A buffer amplifier is provided which includes an amplifying transistor, an inductance element for feeding power to the collector of the amplifying transistor from a power supply, a resistance attenuator having an input end, an output end, and a ground end, and an output terminal connected to the resistance attenuator. The input end of the resistance attenuator is directly connected to the collector of the amplifying transistor. The ground end is connected to the power supply. The output end is connected to the output terminal through a coupling capacitor.

Abstract translation: 提供一种缓冲放大器，其包括放大晶体管，用于从电源向放大晶体管的集电极供电的电感元件，具有输入端，输出端和接地端的电阻衰减器，以及输出端 连接到电阻衰减器。 电阻衰减器的输入端直接连接到放大晶体管的集电极。 接地端连接电源。 输出端通过耦合电容连接到输出端。

公开(公告)号：US20030117203A1

公开(公告)日：2003-06-26

申请号：US10313262

申请日：2002-12-06

Applicant: Alps Electric Co., Ltd.

Inventor： Senichiro Yatsuda ,  Yasuhiro Ikarashi

IPC: G06F001/04 ,  H03K003/00

CPC classification number: G06F1/10

Abstract: A clock signal supply circuit includes a sine wave oscillator and a circuit operating with an oscillation signal, as a clock signal, outputted from the sine wave oscillator, a waveform shaping circuit is provided correspondingly to the circuit, the circuit and the waveform shaping circuit are constructed in the same circuit unit, and the oscillation signal is converted into a rectangular wave by the waveform shaping circuit in the circuit unit and is supplied to the circuit.

Abstract translation: 时钟信号供给电路包括正弦波振荡器和作为从正弦波振荡器输出的时钟信号的作为振荡信号的电路，对应于电路设置波形整形电路，电路和波形整形电路是 构成在同一电路单元中，振荡信号由电路单元中的波形整形电路转换为矩形波，并被提供给电路。

公开(公告)号：US20020005764A1

公开(公告)日：2002-01-17

申请号：US09879632

申请日：2001-06-12

Applicant: Alps Electric Co., Ltd.

Inventor： Hiroki Kobayashi ,  Yasuhiro Ikarashi ,  Yutaka Chiba

IPC: H03L007/099 ,  H03B005/08 ,  H03J003/18 ,  H03J005/24

CPC classification number: H03J5/244 ,  H03B2201/0208 ,  H03J3/185 ,  H03L7/099 ,  H03L2207/06

Abstract: In a voltage controlled oscillator for switching oscillation frequency bands by supplying a band switching signal to an LC resonator circuit that is connected in a phase locked loop having a phase comparator and a loop filter and sets oscillation frequencies, the LC resonator circuit includes at least two inductor elements the connection and non-connection of a part of which are switched in response to a band switching signal and a capacitor element in which a voltage variable capacitor element whose capacitance value is adjusted in response to the control voltage from the loop filter is connected in series to impedance elements acting as a composite element that exhibits a capacitance value in oscillation frequency ranges. With this arrangement, when an oscillation signal is selectively output in a high or low frequency band by switching the LC resonator circuit, the voltage controlled oscillator can increase the difference between the rates of change Kv in the high and low frequency bands.

Abstract translation: 在压控振荡器中，通过向连接在具有相位比较器和环路滤波器的锁相环中的LC谐振电路提供频带切换信号并设置振荡频率来切换振荡频带，LC谐振电路包括至少两个 电感器元件，其一部分的连接和非连接响应于频带切换信号而被切换，并且电容元件连接有电容值，该电容元件的电容值根据来自环路滤波器的控制电压而被调节 与作为在振荡频率范围内呈现电容值的复合元件的阻抗元件串联。 通过这种布置，当通过切换LC谐振器电路来选择性地输出振荡信号在高频或低频带时，压控振荡器可以增加高频带和低频带之间的变化率Kv之间的差异。