Self-resetting, self-correcting latches

Details Self-resetting, self-correcting latches Self-resetting, self-correcting latches

2008-07-06

2010-06-08

Kerveros, James C (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital logic testing

Reexamination Certificate

active

07734970

ABSTRACT:
A latch circuit having three latch stages generates a majority output value from the stages, senses when the latch stage outputs are not all equal, and feeds the majority output value back to inputs of the latch stages to reload the latch stages. The latch circuit uses a not-equal gate whose output is an error signal that can be monitored to determine when a single-event upset has occurred. A master stage is controlled by a first multiplexer which receives one system clock signal, while a slave stage is controlled by a second multiplexer which receives another system clock signal, and the latch stage outputs are connected to respective inputs of the not-equal gate, whose output is connected to second inputs of the multiplexers. The latch circuit is part of a latch control system, and reloading of the latch stages takes less than one cycle of the system clock (less than 500 picoseconds).

REFERENCES:
patent: 4239982 (1980-12-01), Smith et al.
patent: 4375683 (1983-03-01), Wensley
patent: 5144230 (1992-09-01), Katoozi et al.
patent: 5307142 (1994-04-01), Corbett et al.
patent: 6028983 (2000-02-01), Jaber
patent: 6127864 (2000-10-01), Mavis et al.
patent: 6504410 (2003-01-01), Waldie et al.
patent: 6504411 (2003-01-01), Cartagena
patent: 6538488 (2003-03-01), Zhang et al.
patent: 6826090 (2004-11-01), Chu et al.
patent: 7071749 (2006-07-01), Gardner
patent: 7539931 (2009-05-01), Thayer

Affiliated with

Also associated with

Rating

Self-resetting, self-correcting latches does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-resetting, self-correcting latches, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-resetting, self-correcting latches will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4249517