Oscillators – Ring oscillators
Reexamination Certificate
2005-06-07
2005-06-07
Pascal, Robert (Department: 2817)
Oscillators
Ring oscillators
C331S158000, C713S300000
Reexamination Certificate
active
06903616
ABSTRACT:
A method and circuit are disclosed for enabling an oscillator circuit to oscillate a predetermined period of time following completion of a power-up operation. The circuit may include a counter having a control for receiving a control signal from a system power-on-reset circuit, and a clock input. A ring oscillator has an output coupled to the clock input of the counter.
REFERENCES:
patent: 4328571 (1982-05-01), Noble
patent: 6085327 (2000-07-01), Seng et al.
patent: 6219797 (2001-04-01), Liu et al.
patent: 6670860 (2003-12-01), Kobayashi et al.
Yin Rong
Zamanian Mehdi
Chang Joseph
Jorgenson Lisa K.
Pascal Robert
STMicroelectronics Inc.
Szuwalski Andre M.
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