Patents Represented by Attorney James W. Rose

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  • CMOS level shift circuit with active pull-up and pull-down
    Patent number: 4980583
    Abstract: A CMOS level shift circuit with active pull-up uses a pair of pull up transistors activated during the period when an output node needs to be rapidly pulled up. The pull up transistors are activated by the outputs of a combinatorial logic or memory circuit detecting when a change of input signal has occurred and activating the respective pull up transistor to bring the output to the proper state.
    Type: Grant
    Filed: January 3, 1989
    Date of Patent: December 25, 1990
    Assignee: National Semiconductor Corporation
    Inventor: Paul H. Dietz