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    • 1. 发明授权
    • Sampled signal generation circuit
    • 采样信号发生电路
    • US4496937A
    • 1985-01-29
    • US485135
    • 1983-04-20
    • Kazuo KitagawaKenjiro EndohHideshi Kira
    • Kazuo KitagawaKenjiro EndohHideshi Kira
    • G11C27/02H03M1/00H03K13/02
    • G11C27/02H03M1/124H03M1/48
    • A sampled data generation circuit includes a voltage controlled oscillator for producing an output signal with a frequency variable according to a control voltage, a sample and hold circuit for sampling and holding an analog input signal in response to the output signal from the voltage controlled oscillator, and a control circuit for detecting the difference between two successive sampled data generated from the sample and hold circuit and supplying the voltage controlled oscillator with an output signal corresponding to the difference as the control voltage, thereby controlling the voltage controlled oscillator so that the greater the difference, the higher the frequency of the output signal from the voltage controlled oscillator is.
    • 采样数据生成电路包括用于根据控制电压产生具有频率变化的输出信号的压控振荡器,用于响应于来自压控振荡器的输出信号采样和保持模拟输入信号的采样和保持电路, 以及控制电路,用于检测从采样和保持电路产生的两个连续采样数据之间的差异,并向压控振荡器提供对应于该差值的输出信号作为控制电压,从而控制压控振荡器, 差分,来自压控振荡器的输出信号的频率越高。
    • 2. 发明授权
    • Noise reduction system
    • 降噪系统
    • US4187477A
    • 1980-02-05
    • US844435
    • 1977-10-21
    • Kenjiro EndohMotokazu OhkawaKazuo KitagawaHideshi Kira
    • Kenjiro EndohMotokazu OhkawaKazuo KitagawaHideshi Kira
    • H04B1/62G11B20/04H03G7/00H03G9/02H04B1/64
    • H03G9/025
    • A noise reduction system including an encoder for compressing the dynamic range of an audio input signal in accordance with the amplitude thereof, a transmission medium coupled to the encoder, and a decoder having a transfer function inverse to that of the decoder. The encoder includes a first controlled amplifier circuit in which, when the input audio signal is in low- and middle- levels, sufficient emphasis is made to the signal at high frequencies, and when it is in high-level, the emphasis quantity at high frequencies is restrictive. The decoder includes a voltage-current converting circuit for converting voltage of the reproduced audio signal into current and a second controlled amplifier circuit amplifying the converted current and having a transfer function inverse to that of the first controlled amplifier circuit. The second controlled amplifier includes a variable response amplifier having a capacitor and a resistor in series circuit between the output of the voltage-current converting circuit and the output terminal of the second voltage controlled amplifier, a variable gain current amplifier connected at the input thereof to the output of the voltage-current converting circuit and the series circuit, and means for converting the output current of the variable gain current amplifier into a voltage to be directed to the decoder output terminal.
    • 一种降噪系统,包括用于根据其幅度压缩音频输入信号的动态范围的编码器,耦合到编码器的传输介质和具有与解码器的传递函数相反的传递函数的解码器。 编码器包括第一受控放大器电路,其中当输入音频信号处于低电平和中等电平时,对高频信号充分强调,当处于高电平时,高电平处的强调量 频率是限制性的。 解码器包括用于将再现的音频信号的电压转换成电流的电压 - 电流转换电路和放大转换后的电流并具有与第一受控放大器电路相反的传递函数的第二受控放大器电路。 第二受控放大器包括具有电容器的可变响应放大器和在电压 - 电流转换电路的输出与第二压控放大器的输出端之间的串联电路中的电阻器,连接在其输入端的可变增益电流放大器 电压电流转换电路和串联电路的输出,以及用于将可变增益电流放大器的输出电流转换为指向解码器输出端子的电压的装置。
    • 3. 发明授权
    • Compander system having limiter in compressor and expander
    • 压缩机系统在压缩机和膨胀机中具有限制器
    • US4224581A
    • 1980-09-23
    • US844198
    • 1977-10-21
    • Hiroshi WatanabeKenjiro EndohMotokazu OhkawaKazuo KitagawaHideshi Kira
    • Hiroshi WatanabeKenjiro EndohMotokazu OhkawaKazuo KitagawaHideshi Kira
    • H03G9/02H04B1/64H03G7/00
    • H03G9/025
    • A noise reduction system having an encoder which compresses the dynamic range of an analog audio signal, a transmission medium coupled to the encoder, and a decoder coupled to the transmission medium for expanding and thereby restoring the dynamic range of the compressed analog audio signal. The encoder includes a voltage controlled amplifier (VCA) receiving the audio signal, a high-pass filter also coupled to the analog audio signal, a circuit for obtaining a difference between the outputs of the VCA and the high-pass filter, weighting and level sensing circuits coupled to the encoder output for sensing the level of the compressed analog audio signal, and a limiter circuit coupled to the output of the weighting and level sensing circuits and producing a control voltage applied to the VCA control input in such a manner that the ratio of the gain of the VCA and the gain of the high-pass filter at the pass band thereof does not become less than one. The decoder includes circuits similar to those of the encoder and exhibits a transfer function substantially inverse to the encoder transfer function, with the controlling voltage applied to the decoder VCA such that the loop gain in the pass band of the high-pass filter does not become more than one.
    • 一种噪声降低系统,具有压缩模拟音频信号的动态范围的编码器,耦合到编码器的传输介质和耦合到传输介质的解码器,用于扩展并由此恢复压缩的模拟音频信号的动态范围。 编码器包括接收音频信号的压控放大器(VCA),还耦合到模拟音频信号的高通滤波器,用于获得VCA和高通滤波器的输出之间的差值的电路,加权和电平 耦合到编码器输出的感测电路用于感测压缩的模拟音频信号的电平;以及限制器电路,耦合到加权和电平感测电路的输出,并产生施加到VCA控制输入的控制电压, VCA的增益比和通带的高通滤波器的增益的比率不会变得小于1。 解码器包括与编码器类似的电路,并且具有与编码器传递函数基本相反的传递函数,其中控制电压施加到解码器VCA,使得高通滤波器的通带中的环路增益不会变为 超过一个。
    • 4. 发明授权
    • Noise reduction system having specific encoder circuitry
    • 具有特定编码器电路的降噪系统
    • US4187478A
    • 1980-02-05
    • US844436
    • 1977-10-21
    • Kenjiro EndohMotokazu OhkawaKazuo KitagawaHideshi Kira
    • Kenjiro EndohMotokazu OhkawaKazuo KitagawaHideshi Kira
    • H04B1/62G11B20/04H03G7/00H03G9/02H04B1/64
    • H03G9/025
    • A noise reduction system is provided with an encoder for compressing the dynamic range of an audio input signal in accordance with the amplitude of the input signal and recording the compressed one into a tape-recorder, and a decoder for expanding the dynamic range of a reproduced audio signal from the tape-recorder to the original one in accordance with the amplitude of the reproduced audio signal. The encoder includes a first controlled amplifier circuit in which, when the input audio signal is low- and middle-levels, sufficient emphasis is made to the signal at high-frequencies, and when it is in high-level, the emphasis quantity at high-frequencies is restrictive. The decoder includes a second controlled amplifier circuit having a transfer function related to the character of the first controlled amplifier circuit substantially in inverse-function manner. The first controlled amplifier includes a variable response amplifier having a first resistor connected at one end to an input terminal, a current amplifier with variable gain amplifying current extracted from the other end of the first resistor, a series circuit having a second resistor and a capacitor and connected at one end to the input terminal, and means for adding an output current of the other end of the series circuit with an output current of the current amplifier and means for converting the summed current into voltage directed to an output terminal.
    • 噪声降低系统具有:编码器,用于根据输入信号的幅度压缩音频输入信号的动态范围,并将压缩的信号记录到录音机中;解码器,用于扩展再现的动态范围 根据再现的音频信号的幅度从音频记录器到原始音频信号的音频信号。 编码器包括第一受控放大器电路,其中当输入音频信号为低电平和中等电平时,对高频信号进行充分的重视,并且当处于高电平时,高电平处的强调量 - 频率是限制性的。 解码器包括具有与第一受控放大器电路的特性相关的传递函数的第二受控放大器电路,其基本上是反向功能的。 第一受控放大器包括一个可变响应放大器,该可变响应放大器的一端连接到一个输入端;一个电流放大器,具有从第一个电阻的另一端提取的可变增益放大电流,串联电路具有一个第二电阻和一个电容 并且其一端连接到输入端子,以及用于将串联电路的另一端的输出电流与电流放大器的输出电流相加的装置和用于将求和的电流转换成指向输出端子的电压的装置。
    • 5. 发明授权
    • Noise reduction system
    • 降噪系统
    • US4162462A
    • 1979-07-24
    • US799337
    • 1977-05-23
    • Kenjiro EndohKazuo KitagawaHideshi Kira
    • Kenjiro EndohKazuo KitagawaHideshi Kira
    • H04B1/62G11B20/04H03G9/02H04B1/64
    • H04B1/64H03G9/025
    • A noise reduction system is provided with an encoder for compressing the dynamic range of an audio input signal in accordance with the amplitude of the input signal and recording the compressed one into a tape recorder, and a decoder for expanding the dynamic range of a reproduced audio signal from the tape recorder to the original one in accordance with the amplitude of the reproduced audio signal. The encoder includes a first controlled amplifier circuit in which, when the input audio signal is in low- and middle-levels, sufficient emphasis is made to the signal at high frequencies, and when it is in high-level, the emphasis quantity at high frequencies is restrictive. The decoder includes a second controlled amplifier circuit having a transfer function related to the character of the first controlled amplifier circuit substantially in inverse-function manner.
    • 降噪系统具有编码器,用于根据输入信号的幅度压缩音频输入信号的动态范围,并将压缩的信号记录到磁带录音机中;解码器,用于扩展再生音频的动态范围 根据再现的音频信号的幅度从磁带录音机向原始录音机发送信号。 编码器包括第一受控放大器电路,其中当输入音频信号处于低电平和中等电平时,对高频信号充分强调,当处于高电平时,高电平处的强调量 频率是限制性的。 解码器包括具有与第一受控放大器电路的特性相关的传递函数的第二受控放大器电路,其基本上是反向功能的。
    • 8. 发明授权
    • Event processor
    • 事件处理器
    • US08255927B2
    • 2012-08-28
    • US12373974
    • 2007-08-07
    • Hidehiko ShinHideaki YajimaAkiko MiyayamaKazuo Kitagawa
    • Hidehiko ShinHideaki YajimaAkiko MiyayamaKazuo Kitagawa
    • G06F9/44G06F17/00
    • G06F9/451
    • An event control section 210 receives an event notification from an input operation control section 212. If the received event is a user ordered event based on an operation by a user 215, the event control section 210 gives the received event to a GUI content reproduction section 209. On the other hand, if the received event is a logic ordered event based on an order from a logic 201, notification of future generated user ordered events are temporarily stopped and the logic ordered event is notified to GUI content reproduction section 209. The temporary stop of notification of the user ordered event is released after completion of the logic ordered event at the GUI content reproduction section 209.
    • 事件控制部分210从输入操作控制部分212接收事件通知。如果接收到的事件是基于用户215的操作的用户有序事件,则事件控制部分210将所接收的事件发送给GUI内容再现部分 另一方面,如果接收到的事件是基于来自逻辑201的命令的逻辑有序事件,则将来生成的用户有序事件的通知被暂时停止,逻辑有序事件被通知给GUI内容再现部分209。 在GUI内容再现部分209完成逻辑有序事件之后,释放用户有序事件通知的暂时停止。
    • 9. 发明授权
    • Automatic energy supply systems of the multi-rate calculating type
    • 多速率计算型自动供电系统
    • US4162530A
    • 1979-07-24
    • US861164
    • 1977-12-16
    • Shoji KusuiKazuo Kitagawa
    • Shoji KusuiKazuo Kitagawa
    • G01R21/133G07F7/00G07F7/02G07F15/00G01R11/57G01R11/24
    • G07F15/003G01R21/1333G06Q20/127G06Q20/3433G06Q50/06G07F15/08G07F17/0014G07F7/02
    • According to the supply system, a customer purchases a chip corresponding to a predetermined amount of electricity from a power company and sets the chip in a control device installed in the customer house. The supply system comprises an integrating watthour meter which integrates the power consumed by the customer and generates a pulse signal for each unit of consumed power, a timer responsive to the output of the integrating watthour meter for producing a time signal corresponding to a predetermined rate calculating interval, a multi-rate calculating unit responsive to the timer signal and the pulse signal for independently calculating a plurality of operation rate elements an electric switch for supplying power to the customer, a rate detection selection unit including a rate detection member, a multi-rate calculation function unit including a plurality of elements which are set with various parameters regarding tax and rate and adapted to be combined with the multi-rate calculating unit for calculating the rate, and a rate function unit including a rate element set with an amount of power corresponding to the amount of purchased power and adapted to be combined with the rate selection detection unit for producing a rate signal corresponding to the purchased amount of power. The switch is controlled by the rate signal for supplying to the customer a predetermined amount of power.
    • 根据供电系统,客户从电力公司购买对应于预定电量的芯片,并将芯片设置在安装在客户房屋中的控制装置中。 供电系统包括集成电度表,其集成了消费者消耗的功率,并为每个消耗功率单位产生脉冲信号,响应于积分电度表的输出产生对应于预定速率计算的时间信号的定时器 响应于定时器信号的多速率计算单元和用于独立地计算多个操作速率元件的脉冲信号,用于向客户供电的电开关;速率检测选择单元,包括速率检测构件, 速率计算功能单元,其包括多个元素,其被设置有关于税和费率的各种参数,并且适于与用于计算费率的多速率计算单元组合;以及速率函数单元,其包括以 功率对应于购买的功率量并且适于与速率选择相结合 检测单元,用于产生与购买的电量相对应的速率信号。 该开关由用于向顾客提供预定量的功率的速率信号控制。