Integrated circuit for audio enhancement system
    1.
    发明授权
    Integrated circuit for audio enhancement system 失效
    音频增强系统集成电路

    公开(公告)号:US5425106A

    公开(公告)日:1995-06-13

    申请号:US81209

    申请日:1993-06-25

    申请人: Joel Katz Miles Kath

    发明人: Joel Katz Miles Kath

    摘要: An integrated circuit for use as a building block in different embodiments of systems for enhancing audio performance by providing group delay to various frequency components of the signal. The integrated circuit includes four op amps and associated circuitry. Using external connections, the device can be configured as a two-channel stereo device, or can be cascaded for monaural applications. Two of the chips may be cascaded together for stereo applications. External capacitances and resistances are used to control the degree of group delay provided to the signal to realize desired audio enhancement.

    摘要翻译: 一种集成电路,用作系统的不同实施例中的构建块,用于通过向信号的各种频率分量提供组延迟来增强音频性能。 集成电路包括四个运算放大器和相关电路。 使用外部连接,该设备可以配置为双通道立体声设备,也可以级联用于单声道应用。 两个芯片可以级联在一起用于立体声应用。 外部电容和电阻用于控制提供给信号的群延迟的程度以实现所需的音频增强。

    Spectrum-shape discriminating on/off target indicator
    2.
    发明授权
    Spectrum-shape discriminating on/off target indicator 失效
    频谱形状区分开/关目标指标

    公开(公告)号:US3965428A

    公开(公告)日:1976-06-22

    申请号:US105748

    申请日:1971-01-04

    IPC分类号: G01S7/292 H04B1/10

    CPC分类号: G01S7/292

    摘要: A spectrum-shaped discriminating on/off target indicator which indicates if a signal simultaneously meets prescribed conditions on power level and spectrum shape. Signal power level and spectrum width are simultaneously measured and a DC logic output is obtained only for input signals which have a signal-to-noise ratio equal to, or higher than a preset minimum level though the signal "noise bandwidth" meets the prescribed conditions.

    摘要翻译: 一种光谱形状的鉴别开/关目标指示器,其指示信号是否同时满足功率水平和光谱形状的规定条件。 同时测量信号功率电平和频谱宽度,并且仅通过信号“噪声带宽”满足规定条件的信号噪声比等于或高于预设最小电平的输入信号才能获得直流逻辑输出 。

    Integrated circuit for audio enhancement system
    3.
    发明授权
    Integrated circuit for audio enhancement system 失效
    音频增强系统集成电路

    公开(公告)号:US5642427A

    公开(公告)日:1997-06-24

    申请号:US420365

    申请日:1995-04-11

    申请人: Joel Katz Miles Kath

    发明人: Joel Katz Miles Kath

    摘要: An integrated circuit for use as a building block in different embodiments of systems for enhancing audio performance by providing group delay to various frequency components of the signal. The integrated circuit includes four op amps and associated circuitry. Using external connections, the device can be configured as a two-channel stereo device, or can be cascaded for monaural applications. Two of the chips may be cascaded together for stereo applications. External capacitances and resistances are used to control the degree of group delay provided to the signal to realize desired audio enhancement.

    摘要翻译: 一种集成电路,用作系统的不同实施例中的构建块,用于通过向信号的各种频率分量提供组延迟来增强音频性能。 集成电路包括四个运算放大器和相关电路。 使用外部连接,该设备可以配置为双通道立体声设备,也可以级联用于单声道应用。 两个芯片可以级联在一起用于立体声应用。 外部电容和电阻用于控制提供给信号的群延迟的程度以实现所需的音频增强。

    Pulse duty cycle transition moderating device
    4.
    发明授权
    Pulse duty cycle transition moderating device 失效
    脉冲占空比转换调节装置

    公开(公告)号:US3946322A

    公开(公告)日:1976-03-23

    申请号:US479738

    申请日:1974-06-17

    申请人: Joel Katz

    发明人: Joel Katz

    CPC分类号: H03K5/04 G01S7/282 H03K5/1565

    摘要: A pulse width control circuit that narrows, then allows a gradual increasen the pulse width of the output pulses to the width of the input pulses that is activated as the pulse repetition rate of the input pulses increases. The pulse width control circuit will provide the turn-on transient and high voltage supply transient suppression for a pulsed transmitter by selectively interconnecting a pulse repetition detector and a variable pulse width generator with a combining logic circuit.

    摘要翻译: 脉宽控制电路变窄,然后允许输出脉冲的脉冲宽度逐渐增加到随着输入脉冲的脉冲重复率增加而被激活的输入脉冲的宽度。 脉冲宽度控制电路将通过选择性地将脉冲重复检测器和可变脉冲宽度发生器与组合逻辑电路相互连接来为脉冲发射器提供导通瞬态和高电压电源瞬态抑制。

    Modulation system
    9.
    发明授权
    Modulation system 失效
    调制系统

    公开(公告)号:US4130811A

    公开(公告)日:1978-12-19

    申请号:US864946

    申请日:1977-12-27

    IPC分类号: G01S13/32 H03C3/00 H04J1/12

    CPC分类号: H03C3/00

    摘要: A modulation system which produces a modulated carrier having a number of central sideband pairs with power closely approximating the carrier power. A signal generator produces a sinusoidal reference voltage which is applied to a plurality of conditioning channels. Amplitude, phase and frequency conditioning means within the channels produce desired modulating signal components. The components are then synthesized in a power combiner and applied as the control voltage to phase/frequency modulation means to produce the desired modulated signal.

    摘要翻译: 一种调制系统,其产生具有多个具有接近载波功率的功率的中心边带对的调制载波。 信号发生器产生施加到多个调理通道的正弦参考电压。 通道内的幅度,相位和频率调节装置产生所需的调制信号分量。 然后在功率组合器中合成组件,并将其作为控制电压施加到相位/频率调制装置以产生所需的调制信号。