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.
Patent No.:
Date of Patent:
Jul. 28, 2020
Filed:
Dec. 02, 2019
Applicant:
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
Inventor:
Yoshihisa Fujimoto, Sakai, JP;
Assignee:
SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04F 10/00 (2006.01); H03L 7/085 (2006.01); H03M 1/00 (2006.01);
U.S. Cl.
CPC ...
G04F 10/005 (2013.01); H03L 7/085 (2013.01); H03M 1/002 (2013.01); H03L 2207/50 (2013.01);
Abstract
Time-to-digital conversion circuitry converts a time between a start time point and a stop time point, which are state-change time points of digital signals, into digital. The time-to-digital conversion circuitry comprises oscillation circuitry that outputs a plurality of phase signals having different phases, and outputs a digital value of the time based on the plurality of phase signals. The oscillation circuitry performs free-running oscillation and outputs the phase signals that do not synchronize with the start time point and the stop time point.