Switching status determination device and method for...

Details Switching status determination device and method for... Switching status determination device and method for...

2006-10-17

2006-10-17

Deb, Anjan (Department: 2858)

Electricity: measuring and testing

Electromechanical switching device

C324S522000, C324S523000

Reexamination Certificate

active

07123018

ABSTRACT:
A sampling voltage is periodically applied between contacts of a switch of a device to determine a status of the switch. When a CPU is in a sleep state and the status of the switch is determined closed, the CPU is activated. The sampling voltage when the CPU is in the sleep state is adjusted lower than the one when the CPU is in the wakeup state. This reduces power consumption for the switch status determination. The sampling voltage adjusted at the lower level periodically adjusted to a higher level to reduce errors in the determination due to insulation films on the contacts.

REFERENCES:
patent: 3417323 (1968-12-01), Williamson
patent: 5040088 (1991-08-01), Harrington et al.
patent: 5448492 (1995-09-01), Kolomyski et al.
patent: 5581432 (1996-12-01), Wellnitz et al.
patent: 5648722 (1997-07-01), Merry et al.
patent: 6369468 (2002-04-01), Goings et al.
patent: 6371234 (2002-04-01), Yasuda
patent: 1 100-100 (2000-11-01), None
patent: 2 351 618 (2001-01-01), None
patent: A-H01-221816 (1989-09-01), None
patent: B2-4-44065 (1992-07-01), None
patent: A-H08-107339 (1996-04-01), None
patent: A-H11-001155 (1999-01-01), None
Communication from Canadian Intellectual Property Office dated Jun. 27, 2005.

Affiliated with

Also associated with

Rating

Switching status determination device and method for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Switching status determination device and method for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switching status determination device and method for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3663162