Local timer which is used in wireless LAN

Details Local timer which is used in wireless LAN Local timer which is used in wireless LAN

2006-08-15

2006-08-15

Lam, Tuan T. (Department: 2816)

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Measuring or testing

C377S047000, C327S146000, C327S151000, C455S502000, C455S562100, C713S400000, C713S501000, C713S502000, C713S503000

Reexamination Certificate

active

07092478

ABSTRACT:
A local timer includes a dividing counter which counts a first clock and outputs a reference counting signal divided from the first clock; a timing synchronizing timer which counts a timing synchronizing timer value in synchronization with a reference timer responsive to the reference counting signal; a first buffer which stores a counted value of the dividing counter in synchronization with a second clock, when operation is by the first clock; a second buffer which stores the timing synchronizing timer value in synchronization with the second clock, when operation is by the first clock; a first adder which adds a first or second offset value to the stored value in the first buffer in synchronization with the second clock, when the first clock is suspended; and a second adder which adds a set value to the timing synchronizing timer value responsive to a carry from the first adder.

REFERENCES:
patent: 5768627 (1998-06-01), Jones et al.
patent: 6292062 (2001-09-01), Bourk et al.
patent: 6587958 (2003-07-01), Oshins et al.
patent: 2004/0203389 (2004-10-01), Kojima et al.
patent: 2003-318771 (2003-11-01), None

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