The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 01, 2011

Filed:

Aug. 07, 2007
Applicants:

Hideki Aoyagi, Miyagi, JP;

Hitoshi Asano, Miyagi, JP;

Kazuya Toki, Miyagi, JP;

Michiaki Matsuo, San Jose, CA (US);

Suguru Fujita, Tokyo, JP;

Inventors:

Hideki Aoyagi, Miyagi, JP;

Hitoshi Asano, Miyagi, JP;

Kazuya Toki, Miyagi, JP;

Michiaki Matsuo, San Jose, CA (US);

Suguru Fujita, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 11/26 (2006.01);
U.S. Cl.
CPC ...
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 blockhaving N (N is a natural number) delay elementsto, and N selectorsto; a variable delay blockhaving N delay elementsto, and N selectorsto; and a selector. After selection signalstoandtoare changed, and after an output timing of a delay amount set by the variable delay blocksis attained, the signal to be output is switched by the selector, 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.


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