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    • 1. 发明授权
    • Adjustable potentiometer assembly
    • 可调电位器总成
    • US4110721A
    • 1978-08-29
    • US759346
    • 1977-01-14
    • Mutsuo NakanishiHans Schmidt
    • Mutsuo NakanishiHans Schmidt
    • H01C10/08H01C10/16H01C10/32
    • H01C10/32
    • A potentiometer assembly particularly suited for supplying tuning voltages for all of the bands of signals capable of receipt by a television receiver or the like, includes three segments of resistive material arranged in a circle on a support member. Each of the segments corresponds to a different band of frequencies to which the television receiver may be tuned. Band selection is effected by comparable conductive segments on the support member.In one embodiment, a single wiper is used to sweep all of the resistive segments to supply the desired tuning voltage output. A cam arrangement is used to adjust the detented position of the wiper relative to the support member to effect fine tuning at each position. Other embodiments utilize individually adjustable wipers for each station or detent position of the tuner, with each wiper being preset to effect the fine tuning at the detented position of the potentiometer assembly. The individual contacts or wipers for each position are arranged to overlap comparable resistances on the resistive material, so that the entire range of tuning voltages which appear across the resistive material is available from the outputs of the assembly.
    • 特别适用于为能够由电视接收机等接收的所有信号频带提供调谐电压的电位器组件包括在支撑构件上以圆圈布置的三个电阻材料段。 每个段对应于可以调谐电视接收机的不同的频带。 带选择由支撑构件上的相当的导电段实现。
    • 2. 发明授权
    • Adjustable potentiometer assembly
    • 可调电位器总成
    • US4050050A
    • 1977-09-20
    • US580541
    • 1975-05-27
    • Mutsuo NakanishiHans Schmidt
    • Mutsuo NakanishiHans Schmidt
    • H01C10/08H01C10/16H01C10/32H01C10/48
    • H01C10/32
    • A potentiometer assembly particularly suited for supplying tuning voltages for all of the bands of signals capable of receipt by a television receiver or the like, includes three segments of resistive material arranged in a circle on a support member. Each of the segments corresponds to a different band of frequencies to which the television receiver may be tuned. Band selection is effected by comparable conductive segments on the support member.In one embodiment, a single wiper is used to sweep all of the resistive segments to supply the desired tuning voltage output. A cam arrangement is used to adjust the detented position of the wiper relative to the support member to effect fine tuning at each position. Other embodiments utilize individually adjustable wipers for each station or detent position of the tuner, with each wiper being preset to effect the fine tuning at the detented position of the potentiometer assembly. The individual contacts or wipers for each position are arranged to overlap comparable resistances on the resistive material, so that the entire range of tuning voltages which appear across the resistive material is available from the outputs of the assembly.
    • 特别适用于为能够由电视接收机等接收的所有信号频带提供调谐电压的电位器组件包括在支撑构件上以圆圈布置的三个电阻材料段。 每个段对应于可以调谐电视接收机的不同的频带。 带选择由支撑构件上的相当的导电段实现。
    • 3. 发明授权
    • Adapter for rendering a non-addressable CATV converter addressable
    • 用于渲染不可寻址的CATV转换器的适配器可寻址
    • US4602284A
    • 1986-07-22
    • US470881
    • 1983-02-28
    • Gordon E. KellyMutsuo Nakanishi
    • Gordon E. KellyMutsuo Nakanishi
    • H04N7/167H04N7/16
    • H04N7/1675
    • An STV system commonly transmits scrambled television signals which include encoded data reflecting subscriber address, authorization and program code information. In some STV systems the subscriber installation characteristically comprises a non-addressable converter for converting a transmitted RF signal to an output signal having the frequency of standard VHF television signal. The invention is addressed to an addressable adapter which responds to the output signal of the converter to render the subscriber installation addressable. To this end, the adapter comprises tuning means, data retrieval means and an addressable data processor for deriving, among other information, a decode enable signal. The decode enable signal is instrumental in deriving an unscrambled television signal from the converter output signal.
    • STV系统通常发送包括反映用户地址,授权和程序代码信息的编码数据的加扰电视信号。 在一些STV系统中,用户安装特征性地包括用于将发射的RF信号转换成具有标准VHF电视信号频率的输出信号的不可寻址转换器。 本发明涉及一种可寻址适配器,其可响应于转换器的输出信号以使订户安装可寻址。 为此,适配器包括调谐装置,数据检索装置和可寻址数据处理器,用于除其他信息之外导出解码使能信号。 解码使能信号有助于从转换器输出信号导出未加扰的电视信号。