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. 04, 2023
Filed:
Feb. 11, 2022
Qualcomm Incorporated, San Diego, CA (US);
Emanuele Lopelli, Laguna Niguel, CA (US);
Cheng-Han Wang, San Jose, CA (US);
Yi Zeng, San Jose, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Apparatus and methods for generating multiple oscillating signals. An example circuit generally includes a first voltage-controlled oscillator (VCO) circuit and a second VCO circuit having a differential bias input coupled to a differential output of the first VCO circuit. At least one of the first VCO circuit or the second VCO circuit generally includes: a pair of cross-coupled transistors comprising a first transistor and a second transistor, a first inductive element coupled between a first node and the drain of the first transistor, a second inductive element coupled between the first node and the drain of the second transistor, a third transistor having a drain coupled to the drain of the first transistor and having a source coupled to a second node, and a fourth transistor having a drain coupled to the drain of the second transistor and having a source coupled to the second node.