Device for controlling a color video display
    1.
    发明授权
    Device for controlling a color video display 失效
    用于控制彩色视频显示的设备

    公开(公告)号:US5060054A

    公开(公告)日:1991-10-22

    申请号:US278501

    申请日:1988-12-01

    CPC分类号: H04N9/68 H04N9/64

    摘要: A device for controlling a color video display which includes ladder resistor units having a plurality of taps; a clock signal generating unit for generating four-phase clock signals having the same frequency as the frequency of a sub-carrier from a clock signal having a frequency which is four times the frequency of the sub-carrier, and a color signal generating unit for receiving data corresponding to colors to be displayed and for generating color signals, by successively selecting taps of the ladder resistor units corresponding to the colors to be displayed, in synchronization with the four-phase clock signals. The generation of color signals having a precise phase angle relationships are ensured by this device.

    Bit pattern conversion system
    3.
    发明授权
    Bit pattern conversion system 失效
    位模式转换系统

    公开(公告)号:US4841298A

    公开(公告)日:1989-06-20

    申请号:US132441

    申请日:1987-12-14

    IPC分类号: G06F3/14 G06F7/76

    CPC分类号: G06F7/768 G06F3/14

    摘要: A bit pattern conversion system for converting a sequence of a bit pattern between a central processing unit and a peripheral circuit, including a data bus line connected between the central processing unit and the peripheral circuit, and a conversion circuit provided in the peripheral circuit for converting the sequence of the bit pattern from a most significant bit to a least significant bit, and vice versa, in accordance with a conversion signal.

    Operation mode setting system for a microprocessor
    5.
    发明授权
    Operation mode setting system for a microprocessor 失效
    微处理器的运行模式设定系统

    公开(公告)号:US4604692A

    公开(公告)日:1986-08-05

    申请号:US454258

    申请日:1982-12-29

    申请人: Joji Murakami

    发明人: Joji Murakami

    摘要: An operation mode setting system is provided in a microprocessor operable in a plurality of operation modes. The operation mode setting system has a signal input line through which an analog voltage corresponding to any of the respective operation modes is applied to an analog-to-digital converter circuit which is built in the microprocessor. The output signal from the analog-to-digital converter circuit is decoded by a decoder, and the microprocessor is set at the predetermined operation mode in response to the decoded output signal.

    摘要翻译: 在可操作于多种操作模式的微处理器中提供操作模式设置系统。 操作模式设置系统具有信号输入线,通过该信号输入线将对应于任一相应操作模式的模拟电压施加到内置在微处理器中的模数转换器电路。 来自模数转换器电路的输出信号由解码器解码,并且响应于解码的输出信号将微处理器设置在预定的操作模式。