公开(公告)号：US4564814A

公开(公告)日：1986-01-14

申请号：US435173

申请日：1982-10-19

申请人： Masami Miura ,  Takeshi Kuwajima

发明人： Masami Miura ,  Takeshi Kuwajima

IPC分类号： H02M7/21 ,  G06G7/25 ,  H02M7/12 ,  H03K5/00

CPC分类号： G06G7/25

摘要： A full-wave rectifier having a limited number of circuit elements comprises an amplifier, such as an operational amplifier, having an inverting input held at a reference potential, a non-inverting input receiving an input signal through a first resistor and an output, a transistor having its base connected to the output of the amplifier and its collector connected to the non-inverting input of the amplifier through a second resistor and optionally an output circuit for producing an output signal from the connection point between the collector of the transistor and the second resistor.

摘要翻译： 具有有限数量的电路元件的全波整流器包括具有保持在参考电位的反相输入的放大器，例如运算放大器，通过第一电阻和输出接收输入信号的非反相输入， 晶体管的基极连接到放大器的输出端，其集电极通过第二电阻器连接到放大器的非反相输入端，并且可选地是输出电路，用于从晶体管的集电极与晶体管的集电极之间的连接点产生输出信号 第二电阻。

公开(公告)号：US5523748A

公开(公告)日：1996-06-04

申请号：US127347

申请日：1993-09-28

申请人： Takeshi Kuwajima

发明人： Takeshi Kuwajima

IPC分类号： H04L12/18 ,  H04L29/06 ,  H04L29/08 ,  G05B23/02 ,  H01J3/24

CPC分类号： H04L12/1868 ,  H04L29/06 ,  H04L69/324

摘要： A communication control method in which a communication control unit A.sub.2 in an exclusive communication mode with a communication control unit A.sub.1 receives a requesting frame of an exclusive communication mode or broadcast communication frames from another communication control unit B. Unit B sends a communication frame for announcing an exclusive communication mode after receiving a NAK response from unit A.sub.2, sends message frames after the elapse of a predetermined time T.sub.1, and then sends a frame releasing the exclusive communication mode between Unit B and Unit A.sub.2 after sending the message frames. After receiving the announcing frame from unit B, unit A.sub.2 communicates with unit A.sub.1 to release the exclusive mode between them within the time T.sub.1, enters an exclusive mode with unit B, and then receives communication frames from unit B until it receives the frame of releasing the exclusive mode with unit B. When simultaneous broadcasting frames from unit B are detected, communication control unit A.sub.1, which is in the exclusive communication mode and transmitting message frames to unit A.sub.2, transmits a communication frame for temporarily releasing the exclusive communication mode to unit A.sub.2. The exclusive communication mode between units A.sub.1 and A.sub.2 is revived after unit A.sub.2 receives the casting frames from unit B.

摘要翻译： 一种通信控制方法，其中与通信控制单元A1以专用通信模式的通信控制单元A2从另一通信控制单元B接收专用通信模式的请求帧或广播通信帧。单元B发送通知帧 在从单元A2接收到NAK响应之后的专用通信模式，在经过预定时间T1之后发送消息帧，然后在发送消息帧之后发送在单元B和单元A2之间释放专用通信模式的帧。 从单元B接收到通知帧后，单元A2与单元A1通信，在时间T1内释放它们之间的排他模式，与单元B进入独占模式，然后从单元B接收通信帧，直到接收到释放帧 具有单元B的独占模式。当检测到来自单元B的同时广播帧时，处于专用通信模式的通信控制单元A1向单元A2发送消息帧，将用于临时释放专用通信模式的通信帧发送到单元 A2。 单元A1和A2之间的独占通信模式在单元A2从单元B接收到铸造帧之后恢复。

公开(公告)号：US5200834A

公开(公告)日：1993-04-06

申请号：US330406

申请日：1989-03-30

申请人： Kunio Iwaibana ,  Takeshi Kuwajima

发明人： Kunio Iwaibana ,  Takeshi Kuwajima

IPC分类号： H04N9/83

CPC分类号： H04N9/831 ,  H04N9/83

摘要： A digital video tape recorder. A clock is extracted from the horizontal sync signal within the luminance signal, and used in processing the luminance portion of the video signal. A clock is also extracted from a color burst within the chrominance signal and is used for processing the chrominance portion. The chrominance portion of the video signal to be recorded is converted to a low frequency band before recording. During playback, the reverse of this operation is performed, thereby producing a signal with the original color frequency.

公开(公告)号：US4680792A

公开(公告)日：1987-07-14

申请号：US708454

申请日：1985-03-05

申请人： Kouichi Tanaka ,  Takeshi Kuwajima ,  Kiyoshi Amazawa

发明人： Kouichi Tanaka ,  Takeshi Kuwajima ,  Kiyoshi Amazawa

IPC分类号： H03D1/22 ,  H04B1/16 ,  H04H1/00 ,  H04H40/45 ,  H04H40/81 ,  H04H5/00

CPC分类号： H04H40/45 ,  H03D1/2236 ,  H04B1/1653 ,  H04H40/81

摘要： In a demodulator comprising an indicator (31) for indicating either stereo reception or monaural reception, an indicator circuit (30) is used to cancel a pilot signal included in a stereophonic signal and to produce a drive signal for driving the indicator. The indicator circuit comprises a negative feedback loop formed by an adder circuit (41), a phase detector (43), and a cancellation circuit (45). The cancellation circuit supplies the indicator and the adder circuit with the drive signal and a cancelling signal synchronized with and approximate to the pilot signal, respectively. The adder circuit substracts the cancelling signal from the pilot signal to deliver an intermediate signal to a multiplex decoder and to the cancellation circuit through the phase detector. The cancellation circuit comprises a wave generator for generating a pair of currents proportional to an amplitude of the pilot signal and a level adjusting circuit for converting one of the currents into the cancelling signal. The other current is converted into the drive signal.

摘要翻译： 在包括用于指示立体声接收或单声道接收的指示器（31）的解调器中，使用指示器电路（30）来取消包括在立体声信号中的导频信号并产生用于驱动该指示器的驱动信号。 指示电路包括由加法器电路（41），相位检测器（43）和消除电路（45）形成的负反馈回路。 消除电路分别向指示器和加法器电路提供与导频信号同步并接近导频信号的驱动信号和抵消信号。 加法器电路从导频信号中消除抵消信号，通过相位检测器将中间信号传送到复用解码器和消除电路。 消除电路包括用于产生与导频信号的幅度成比例的一对电流的波发生器和用于将电流中的一个转换为取消信号的电平调整电路。 另一个电流被转换为驱动信号。

公开(公告)号：US4634902A

公开(公告)日：1987-01-06

申请号：US552518

申请日：1983-11-16

申请人： Kouichi Tanaka ,  Takeshi Kuwajima ,  Kiyoshi Amazawa

发明人： Kouichi Tanaka ,  Takeshi Kuwajima ,  Kiyoshi Amazawa

IPC分类号： H03G3/34 ,  H03K5/08 ,  H03K5/1252 ,  H03K5/24 ,  H03K5/153

CPC分类号： H03K5/08 ,  H03G3/345 ,  H03K5/1252 ,  H03K5/2418

摘要： In a circuit arrangement comprising a differential transistor circuit which has a threshold level and is operable in response to an input signal level and a reference signal level for producing an output signal, a resistor circuit is provided for changing the reference level. The resistor circuit comprises a resistor (30) for supplying the differential transistor circuit with the reference level and a modifying circuit coupled to the resistor for modifying the reference level by changing a current flowing through the resistor. Consequently, the threshold level can be voluntarily adjusted.

摘要翻译： 在包括具有阈值电平并且响应于输入信号电平和用于产生输出信号的参考信号电平可操作的差分晶体管电路的电路装置中，提供用于改变参考电平的电阻器电路。 电阻器电路包括用于向差分晶体管电路提供参考电平的电阻器（30）和耦合到电阻器的修改电路，用于通过改变流过电阻器的电流来修改参考电平。 因此，可以自愿调整阈值水平。

公开(公告)号：US4612662A

公开(公告)日：1986-09-16

申请号：US645124

申请日：1984-08-28

申请人： Takeshi Kuwajima ,  Kiyoshi Amazawa

发明人： Takeshi Kuwajima ,  Kiyoshi Amazawa

IPC分类号： H03G3/20 ,  H04B1/16 ,  H04H1/00 ,  H04H20/47 ,  H04H40/63 ,  H04H40/72 ,  H04H5/00

CPC分类号： H04H20/47 ,  H03G3/3052 ,  H04B1/1676 ,  H04H40/63 ,  H04H40/72

摘要： A control circuit is configured to detect by an active filter white noise levels in detection outputs from an intermediate frequency amplifier in an FM stereo demodulation circuit so as to control the separation of outputs from the stereo demodulation circuit into left and right stereo channels, responsively to the white noise level, and is characterized in provision of a current detection circuit which is actuated by the output from the active filter and responsive to a current flowing into a resistor connected between the feedback terminal of the active filter and a reference potential point to control a blend control circuit so as to change the point whereat the separation ratio begins to vary.

摘要翻译： 控制电路被配置为通过FM立体声解调电路中的中频放大器的检测输出中的有源滤波器白噪声电平进行检测，以便响应地响应于立体声解调电路的输出而分离成左立体声通道和右立体声通道 白噪声电平，并且其特征在于提供电流检测电路，其由有源滤波器的输出致动，并响应于流入连接在有源滤波器的反馈端子与参考电位点之间的电阻器的电流，以控制 混合控制电路，以便改变分离比开始变化的点。

公开(公告)号：US4463801A

公开(公告)日：1984-08-07

申请号：US348300

申请日：1982-02-12

申请人： Akiro Yoshimi ,  Takeshi Kuwajima ,  Fumio Ootsuka ,  Takeo Matsushima

发明人： Akiro Yoshimi ,  Takeshi Kuwajima ,  Fumio Ootsuka ,  Takeo Matsushima

IPC分类号： B60H1/00 ,  B60H3/00 ,  F25B1/00

CPC分类号： B60H1/00849

摘要： A vehicle air conditioner control apparatus for supplying into the passenger compartment of a vehicle a flow of air which is temperature controlled in accordance with air conditioner control conditions, automatically controls an air change-over damper in response to a manual setting device for selectively commanding the induction of outside air, the induction of inside air and the induction of outside and inside air into an air duct and in response to a signal indicative of an absolute temperature of air inducted into the air duct, which is computed and generated in accordance with the outputs of a plurality of sensors.

摘要翻译： 一种车辆空调控制装置，用于向车辆的乘客室供应根据空调控制条件进行温度控制的空气流，响应于手动设置装置自动控制换气阻尼器，用于选择性地命令 感应外部空气，感应内部空气以及将外部和内部空气感应到空气管道中，并且响应于指示引入空气管道的空气的绝对温度的信号，该信号是根据 多个传感器的输出。

公开(公告)号：US5557613A

公开(公告)日：1996-09-17

申请号：US438306

申请日：1995-05-10

申请人： Takeshi Kuwajima

发明人： Takeshi Kuwajima

IPC分类号： H04L12/18 ,  H04L29/06 ,  H04L29/08 ,  H04J3/02 ,  H04J3/24

CPC分类号： H04L12/1868 ,  H04L29/06 ,  H04L69/324

摘要： A method of controlling communications in response to a communication frame in a simultaneous broadcasting mode transmitted from a third communication control apparatus (CCA). The method includes a step of transmitting from a first CCA to a second CCA a communication frame for releasing the exclusive communication mode. The method also includes a step of receiving at the second CCA the communication frame in the simultaneous broadcasting mode after the second CCA has received the communication frame for releasing the exclusive communication mode. The method further includes a step of starting to transmit a communication frame of a communication message from the first CCA to the second CCA after the first CCA has detected the ending of the communication frame in the simultaneous broadcasting mode. The method lastly includes a step of receiving at the second CCA the communication frame of the communication message transmitted from the first CCA in the exclusive communication mode.

摘要翻译： 一种响应于从第三通信控制装置（CCA）发送的同时广播模式的通信帧来控制​​通信的方法。 该方法包括从第一CCA向第二CCA发送用于释放专用通信模式的通信帧的步骤。 该方法还包括在第二CCA已经接收到用于释放专用通信模式的通信帧之后，以第二CCA接收同时广播模式中的通信帧的步骤。 该方法还包括在第一CCA在同时广播模式中检测到通信帧的结束之后，开始将通信消息的通信帧从第一CCA发送到第二CCA的步骤。 该方法最后包括在第二CCA中以专用通信模式从第一CCA发送的通信消息的通信帧接收的步骤。

公开(公告)号：US4860099A

公开(公告)日：1989-08-22

申请号：US216328

申请日：1988-07-07

申请人： Takeshi Kuwajima

发明人： Takeshi Kuwajima

IPC分类号： H04N5/93

CPC分类号： H04N5/93

摘要： A video signal processing circuit for a VTR system is disclosed. In a special playback mode such as "STILL", "SLOW" and "QUICK" modes, a pseudo vertical synchronizing signal is supplied which has a train of pulses at a predetermined cycle proportional to one horizontal cycle. There are provided a detection circuit for detecting the pseudo vertical synchronizing signal to produce a detection signal and a pulse separator separating the train of pulses from the pseudo vertical synchronizing signal. When the detection signal is produced, a reproduced video signal is supplied to a clamping circuit which clamps each synchronizing signal contained in the reproduced video signal at a predetermined level. When the detection signal is not produced, on the other hand, the separated pulses are transferred to the clamping circuit, and the clamping circuit is controlled to be made inoperative during the production period of each pulse.