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:
Nov. 21, 2017
Filed:
Dec. 31, 2015
Applicant:
Mediatek Singapore Pte. Ltd., Singapore, SG;
Inventors:
Yipin Wu, Singapore, SG;
Heng-Meng Liu, Jhubei, TW;
Assignee:
MEDIATEK SINGAPORE PTE. LTD., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/13 (2014.01); H03K 3/03 (2006.01); H03K 5/133 (2014.01); H03K 19/20 (2006.01); H03K 19/173 (2006.01);
U.S. Cl.
CPC ...
H03K 5/133 (2013.01); H03K 3/0315 (2013.01); H03K 19/1737 (2013.01); H03K 19/20 (2013.01);
Abstract
A tunable delay circuit includes a first multiplexer, a delay chain, and a second multiplexer. The first multiplexer selects an input signal or a feedback signal as a first output signal according to an enable signal. The delay chain delays the first output signal for different time periods so as to generate a plurality of delay signals. One of the delay signals is used as the feedback signal. The second multiplexer selects one of the delay signals as a second output signal according to a pass signal.