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    • 1. 发明授权
    • Variable speed tuning selector
    • 变速调速选择器
    • US4408172A
    • 1983-10-04
    • US309666
    • 1981-10-08
    • Terry A. Perdue
    • Terry A. Perdue
    • H03J1/22H03J1/14H03J3/02
    • H03J1/22
    • A touch sensitive variable speed tuning selector is disclosed. A rotary tuning selector knob includes a finger contact coupled to touch sensitive circuitry. Tuning selector rotation causes a shaft encoder to provide a first pulsed output to tuning circuitry for normal frequency change increments. When the touch sensitive circuitry detects the presence of a finger on the contact, a signal is provided to the tuning circuitry causing each pulse from the shaft encoder to change frequency in larger increments for fast, or coarse, tuning. In a preferred embodiment, a change in the capacitance of a touch sensitive capacitive network changes the timing of input pulses provided to a flip-flop which, in turn, changes the flip-flop output to the variable speed tuning circuitry resulting in an increase in frequency change increments.
    • 公开了一种触敏变频调速选择器。 旋转调谐选择器旋钮包括耦合到触敏电路的手指触点。 调谐选择器旋转使轴编码器向调谐电路提供第一个脉冲输出,用于正常的频率变化增量。 当触敏电路检测到触点上存在手指时,向调谐电路提供信号,从而使得来自轴编码器的每个脉冲以更大的增量改变频率以进行快速或粗调谐。 在优选实施例中,触敏电容网络的电容变化改变了提供给触发器的输入脉冲的定时,触发器又将触发器输出改变为可变速度调谐电路,导致增加 频率变化增量。
    • 3. 发明授权
    • Television channel selector
    • 电视频道选择器
    • US3903433A
    • 1975-09-02
    • US47231174
    • 1974-05-22
    • TEXAS INSTRUMENTS INC
    • LEUSCHNER HORST
    • H03J1/22H03J5/02H03K17/60
    • H03J5/0227H03J1/22
    • An electronic channel selector switching system for television receivers embodied in five integrated circuit devices of two types, one device of the first type providing the functions of an up-down counter, partial decoder, clock oscillator, regulated power supply, input signal latch and distributor, AFC defeatsound muting and counter preset-at-power-on, each of the other four integrated circuit devices being of a second type having four analog switching devices each operative to connect a different standard tuning voltage to a common output, four driver switches each operative in parallel with one of the analog switches to apply a driver voltage to a different channel indicator output and means to disable all of the switches of the device.
    • 一种用于电视接收机的电子频道选择器切换系统,包括两种类型的五个集成电路设备,第一类型的一个设备提供升降计数器,部分解码器,时钟振荡器,稳压电源,输入信号锁存器和分配器 ,AFC失声音静音和计数器预置电源接通,其他四个集成电路设备中的每一个是第二类型,具有四个模拟开关装置,每个操作用于将不同的标准调谐电压连接到公共输出,四个驱动器 开关每个与一个模拟开关并联操​​作,以将驱动器电压施加到不同的通道指示器输出,并且用于禁用所述装置的所有开关的装置。
    • 4. 发明授权
    • Wireless remote operation of an RF receiver
    • RF接收机的无线遥控操作
    • US3900880A
    • 1975-08-19
    • US42199373
    • 1973-12-05
    • LICENTIA GMBH
    • FLEISCHER WOLFGANGKNUTH KURT
    • H03J1/22H03J9/00H03J9/04H03J9/06H04B1/06H04N5/00H04Q9/00H04Q9/16
    • H03J9/04H03J1/22H03J9/06
    • For the wireless remote control of an RF receiver having a remote control signal processing portion, the RF receiver being capable of being switched between an off state, an on state and an enabled state in which a channel is not being received but the remote control signal processing portion is operative, the remote control processing portion includes a remote control signal receiver unit and a memory circuit connected to receive signals from the receiver unit and to convert them into voltages which operate the RF receiver, and there is provided a remote control signal transmitter having a button or key for each channel and arranged to transmit, upon actuation of a given button, a carrier signal which is pulse modulated with a number of pulses corresponding to the selected channel. The memory circuit has one location for each such channel and an additional location which can produce an output voltage to switch the receiver from its on state to its enabled state. Only one memory location can produce an output voltage at any given time.
    • 对于具有遥控信号处理部分的RF接收机的无线遥控器,RF接收机能够在关闭状态,接通状态和未被接收信道的使能状态之间进行切换,但是遥控信号 处理部分是可操作的,遥控处理部分包括遥控信号接收单元和存储电路,该存储器电路被连接以从接收器单元接收信号并将其转换成操作RF接收器的电压,并且提供了一个遥控信号发射器 具有用于每个通道的按钮或键,并且被布置成在给定按钮的致动时发送用对应于所选择的通道的多个脉冲进行脉冲调制的载波信号。 存储器电路具有用于每个这样的通道的一个位置和可以产生输出电压以将接收器从其接通状态切换到其使能状态的附加位置。 只有一个存储器位置可以在任何给定时间产生输出电压。