Variable delay apparatus

Details Variable delay apparatus Variable delay apparatus

2011-03-01

2011-03-01

Luu, An T (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Having specific delay in producing output waveform

C327S277000, C327S299000

Reexamination Certificate

active

07898312

ABSTRACT:
It is an object of the invention to provide a variable delay apparatus in which, even immediately after the delay amount of the variable delay apparatus is changed, a signal of a timing that is different from a set delay amount is not output. The variable delay apparatus of the invention includes: a variable delay block108having N (N is a natural number) delay elements101ato101n, and N selectors102ato102n; a variable delay block109having N delay elements103ato103n, and N selectors104ato104n; and a selector107. After selection signals105ato105nand106ato106nare changed, and after an output timing of a delay amount set by the variable delay blocks108, 109is attained, the signal to be output is switched by the selector107, thereby avoiding a situation where, immediately after the delay amount is changed, a signal of a timing that is different from the set delay amount is output as an output signal.

REFERENCES:
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patent: 06-196958 (1994-07-01), None
patent: 08-056143 (1996-02-01), None
patent: 09-093082 (1997-04-01), None
patent: 11-168376 (1999-06-01), None
International Search Report for PCT/JP2007/065442.

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