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:
Sep. 29, 2020
Filed:
Jan. 24, 2017
Applicant:
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Inventor:
Fenghao Mu, Hjarup, SE;
Assignee:
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/00 (2006.01); H03K 5/00 (2006.01); H03K 19/00 (2006.01); H03K 5/134 (2014.01); H03K 3/356 (2006.01); H03K 5/135 (2006.01); H03K 5/15 (2006.01);
U.S. Cl.
CPC ...
H03K 5/134 (2014.07); H03K 3/356 (2013.01); H03K 5/135 (2013.01); H03K 5/1504 (2013.01);
Abstract
A passable latch circuit and variable delay chains built with one or more passable latch circuits are disclosed. The passable latch circuit has a dynamic latch including a first P-transistor, a first N-transistor, a second P-transistor, a second N-transistor and a clock input circuitry. The passable latch circuit further includes a control switch connected between the gates of the second P-transistor and the second N-transistor. The control switch has an on state and an off state, and the passable latch circuit is configured to have different delays by controlling the state of the control switch.