Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By presence or absence pulse detection
Patent
1996-07-18
1998-07-14
Ton, My-Trang Nu
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By presence or absence pulse detection
327 31, G01R 1900, H03K 519
Patent
active
057810370
ABSTRACT:
The present invention relates to an improvement to an address transition detection (ATD) circuit in an IC chip, a method related to the improved ATD circuit is also disclosed. The improved ATD circuit applies a transfer gate and a lot of inverters to construct a new ATD circuit. Not only reduces power dissipation while an address transition is detecting, but less consumption on transistors is achieved. Each time when the logic state of an input pin is switching, the improved ATD circuit generates an inverting phase signal based on the switching; next, a transfer gate generates a driving signal for waking up the chip from idleness; a delaying circuit then generates a regular time interval for the chip to operate the task indicated by the varied address. At the end of the regular time interval, the chip returns to idleness again to wait another job's coming.
REFERENCES:
patent: 4692637 (1987-09-01), Shoji
patent: 4728820 (1988-03-01), Lee
patent: 5424661 (1995-06-01), Lin et al.
patent: 5493538 (1996-02-01), Bergman
patent: 5604455 (1997-02-01), Bion et al.
patent: 5623218 (1997-04-01), Kim
Nu Ton My-Trang
United Microelectronics Inc.
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