Real time clock

Details Real time clock Real time clock

2009-02-27

2011-10-18

Auve, Glenn A (Department: 2111)

Electrical computers and digital processing systems: support

Clock, pulse, or timing signal generation or analysis

C327S160000, C327S291000

Reexamination Certificate

active

08041982

ABSTRACT:
Various apparatuses, methods and systems for a real time clock are disclosed herein. For example, some embodiments provide a real time clock including a clock generator having a first input connected to a clock signal and a second input connected to a time set signal. The clock generator produces a time change signal at an output of the clock generator. Counters, each adapted to track a different unit of time, are connected to the time change signal. The clock generator is adapted to generate a pulse on the time change signal for each pulse of the time set signal, and to generate separate pulses on the time change signal for consecutive pulses on the clock signal and the time set signal.

REFERENCES:
patent: 4191998 (1980-03-01), Carmody
patent: 5418932 (1995-05-01), Watabe et al.
patent: 7093144 (2006-08-01), Skroch
patent: 7962773 (2011-06-01), Fernald et al.
Texas Instruments Incorporated, Real-Time Clock (RTC), BQ32000 data sheet, Dec. 2008, www.ti.com, USA.

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