Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By presence or absence pulse detection
Patent
1998-04-02
2000-04-25
Nuton, My-Trang
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By presence or absence pulse detection
H03K 519
Patent
active
060548789
ABSTRACT:
An address transition detection summation circuit is provided that selectively maintains an input voltage of a pull-up circuit at an intermediate level during a pull-up time. The address transition detection summation circuit includes a pull-up circuit and an address transition detection summation unit for summing a plurality of ATD signals. A delay unit delays an address transition detection summation node signal and can determine a pulse width of the address transition detection summation signal. An input signal generation unit can maintain the input level of the pull-up circuit at an intermediate level. Thus, although a short pulse ATD signal or a standard pulse ATD signal is inputted, a width of an address transition detection summation signal is made as wide as the ATD signal. Thus, the address transition detection summation signal more rapidly responds to the short pulse, which can prevent a failure of a chip operation.
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LG Semicon Co. Ltd.
Nuton My-Trang
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