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:
Jul. 14, 2015

Filed:

Aug. 06, 2014
Applicant:

Panasonic Corporation, Osaka, JP;

Inventor:

Shiro Dosho, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/50 (2006.01); G04F 10/00 (2006.01); G04F 10/06 (2006.01); H03K 5/26 (2006.01);
U.S. Cl.
CPC ...
G04F 10/005 (2013.01); G04F 10/06 (2013.01); H03K 5/26 (2013.01);
Abstract

A time-to-digital converter includes first and second phase distribution circuits and N time-to-digital conversion circuits. The first and second phase distribution circuits each includes a plurality of frequency dividers connected in a tree structure. The first and second phase distribution circuits each divides a signal received by the frequency dividers of root nodes into N signals. The first and second phase distribution circuits each outputs the N signals each having a different phase. The N time-to-digital conversion circuits each converts a phase difference between an i-th signal (where i is an integer from 0 to N−1) that is output from the first phase distribution circuit and another i-th signal that is output from the second phase distribution circuit into a digital value.


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