Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Having specific delay in producing output waveform
Reexamination Certificate
2007-06-26
2007-06-26
Nguyen, Linh My (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Having specific delay in producing output waveform
C327S262000
Reexamination Certificate
active
11340755
ABSTRACT:
A system for detecting the processing speed of an integrated circuit (IC) includes a flip-flop, a delay module, and a judge unit. The flip-flop receives a clock signal as a trigger signal and generates an inverted output signal. The delay module receives the inverted output signal, adjusts the delay time of the inverted output signal according to a selection signal, and outputs a delay signal to the flip-flop to have the flip-flop generate the output signal. The judge unit receives the output signal and generates a judge signal, which is enabled when the clock period of the output signal is longer than that of the clock signal.
REFERENCES:
patent: 6891410 (2005-05-01), Sadowski
patent: 6909311 (2005-06-01), Foley et al.
Fang Chung Yin
Yeh Ying Jyh
Nguyen Linh My
Silicon Integrated Systems Corp.
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