Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Clock or pulse waveform generating
Reexamination Certificate
2007-06-19
2007-06-19
Wells, Kenneth B. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Clock or pulse waveform generating
C713S323000
Reexamination Certificate
active
11318228
ABSTRACT:
Methods and apparatus provide for: producing a control signal at a first substantially steady state logic level indicative of a sleep mode, and at a second substantially steady state logic level indicative of a normal mode; producing a gate signal that is at a substantially steady state null level when the control signal is at the first logic level, and that oscillates at a local clock frequency when the control signal is at the second logic level; producing a local clock signal from a system clock signal as a function of the gate signal; and interposing at least one signal propagation latch circuit between an origin of the control signal and the location at which the gate signal is produced.
REFERENCES:
patent: 6259291 (2001-07-01), Huang
Chelstrom Nathan Paul
Ferguson Steven Ross
Stasiak Daniel Lawrence
Takano Chiaki
Dernier Matthew B.
Kaplan Gilman Gibson & Dernier
Sony Computer Entertainment Inc.
Wells Kenneth B.
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