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:
Jan. 07, 2020
Filed:
Dec. 31, 2013
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventor:
Euhan Chong, Ottawa, CA;
Assignee:
Futurewei Technologies, Inc., Plano, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03L 7/24 (2006.01); H03K 3/03 (2006.01); H03K 3/0231 (2006.01);
U.S. Cl.
CPC ...
H03L 7/24 (2013.01);
Abstract
An apparatus comprises a ring oscillator comprising a plurality of delay stages connected in cascade and an injection apparatus comprising a plurality of injection devices, wherein the injection devices receive a reference clock from their inputs and outputs of the injection devices are coupled to respective outputs of the delay stages, and wherein each injection device comprises a polarity selection stage having inputs coupled to the reference clock and an adjustable gain stage having inputs coupled to outputs of the polarity selection stage and outputs coupled to outputs of a corresponding delay stage.