Kenneth G Sharp

US Patent:

20050076254, Apr 7, 2005

Filed:

Oct 1, 2003

Appl. No.:

10/676523

Inventors:

Michael Robinson - Femont CA, US
Kenneth Sharp - Santa Clara CA, US

International Classification:

G06F001/32

US Classification:

713320000, 713300000

Abstract:

Systems and methods of recovering a device from a sleep mode of operation are described. In one aspect, a device includes a sleep recovery circuit that is operable to transition from a first signal detection mode to a second signal detection mode in response to detection of a first signal characteristic in an input signal. The sleep recovery circuit also is operable to transition from the second signal detection mode to a third operational mode in response to detection in the input signal of a second signal characteristic different from the first signal characteristic.

US Patent:

44778856, Oct 16, 1984

Filed:

Jan 18, 1982

Appl. No.:

6/340145

Inventors:

Kenneth P. Sharp - Palo Alto CA

Assignee:

Fairchild Camera & Instrument Corporation - Mountain CA

International Classification:

G11C 702
G11C 800

US Classification:

365204

Abstract:

Circuitry for rapidly discharging a row of RAM cells upon deselection of the word line. The word line switching transistor collector current is sensed and corresponding voltage level signals are applied to a second switching transistor between the bottom word line of the memory row and a large dump current source. The emitter of the second switching transistor is clamped at a level that will permit the switching transistor to turn on only when there is no emitter current through the word line switching transistor to thereby rapidly discharge the capacitive row of memory cells and therefore improve the operating speed of the memory.