Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Reexamination Certificate
2008-05-27
2008-05-27
Richards, N. Drew (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
C327S198000
Reexamination Certificate
active
07378886
ABSTRACT:
A supply voltage level detection circuit makes use of an additional supply already provided for power. A voltage detection circuit defines a first threshold, and a differencing circuit defines a second threshold. The output state of the differencing circuit is saved in a latch. The latch may be cross coupled gates of cross coupled inverters. When inverters are used, the differencing circuit output contends with the internal latch drive when setting or resetting the latch. The design allows the differencing circuit to overcome the inverter's internal drives to change the logic state of the latch.
REFERENCES:
patent: 4788454 (1988-11-01), Tanagawa et al.
patent: 5734280 (1998-03-01), Sato
patent: 5864247 (1999-01-01), Hirano et al.
patent: 6353355 (2002-03-01), Kato
patent: 6483357 (2002-11-01), Kato et al.
patent: 6731143 (2004-05-01), Kim
patent: 6750683 (2004-06-01), McClure et al.
patent: 6759852 (2004-07-01), Samad
patent: 6809565 (2004-10-01), Kawakubo
patent: 6822493 (2004-11-01), Hirano et al.
patent: 6873192 (2005-03-01), Kang et al.
patent: 2002/0145455 (2002-10-01), Wang
Hiltunen Thomas J
Paul Edwin H.
Richards N. Drew
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