Variable delay circuit, variable delay circuit controlling...

Details Variable delay circuit, variable delay circuit controlling... Variable delay circuit, variable delay circuit controlling...

2011-05-17

2011-05-17

Luu, An T (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Having specific delay in producing output waveform

C327S154000, C327S158000

Reexamination Certificate

active

07944264

ABSTRACT:
A variable delay circuit includes: a first delay section that changes a first drive capability or a first capacity load, receives the reference signals, and generates a first delayed signal by giving a first delay to the reference signal; a second delay section that changes a second drive capability or a second capacity load of the second delay section, receives the reference signal, and generates a second delayed signal by giving a second delay to the reference signal; a first capacity load setting section that sets at least one of the first capacity load and the second capacity load; a first phase comparing section that compares a first phase of the first delayed signal with a second phase of the second delayed signal; and a drive capability setting section that controls the first drive capability and the second drive capability.

REFERENCES:
patent: 5285122 (1994-02-01), Honda et al.
patent: 6486716 (2002-11-01), Minami et al.
patent: 6525585 (2003-02-01), Iida et al.
patent: 3-238912 (1991-10-01), None
patent: 5-14150 (1993-01-01), None
patent: 2000/201059 (2000-07-01), None
patent: 2000-315941 (2000-11-01), None
English Translation of the International Preliminary Report on Patentability issued Feb. 9, 2010 in corresponding International Patent Application PCT/JP2007/064801.
International Search Report for PCT/JP2007/064801, mailed Aug. 28, 2007.

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