Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Clock or pulse waveform generating
Reexamination Certificate
2007-01-04
2009-02-17
Luu, An T (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Clock or pulse waveform generating
C327S144000, C327S298000
Reexamination Certificate
active
07492205
ABSTRACT:
A clock generator includes a first circuit, a second circuit, and a third circuit. The first circuit generates a first clock signal. The second circuit divides the frequency of the first clock signal to generate a second clock signal. The third circuit generates a third clock signal from the first and second clock signals. The third clock signal has the same period as that of the second clock signal, and timing at which the third clock signal changes from a first logic level to a second logic level coincides with timing at which the first clock signal changes from a first logic level to a second logic level.
REFERENCES:
patent: 5365119 (1994-11-01), Kivari
patent: 5935257 (1999-08-01), Nishimura
patent: 6002731 (1999-12-01), Aoki et al.
patent: 6642766 (2003-11-01), Hatanaka
patent: 2007/0063756 (2007-03-01), Takano et al.
patent: 7-321208 (1995-12-01), None
Luu An T
McDermott Will & Emery LLP
Panasonic Corporation
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