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. 12, 2022
Filed:
Sep. 03, 2021
Qualcomm Incorporated, San Diego, CA (US);
Alvin Siu-Chi Li, San Diego, CA (US);
Yue Chao, San Diego, CA (US);
Dongmin Park, San Diego, CA (US);
Heui In Yoon, San Diego, CA (US);
Tomas O'Sullivan, San Diego, CA (US);
Jianjun Yu, San Diego, CA (US);
Yiwu Tang, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A method of quantization noise cancellation in a phase-locked loop (PLL) is provided according to certain aspects. The PLL includes a phase detector having a first input configured to receive a reference signal and a second input configured to receive a feedback signal. The method includes delaying the reference signal by a first time delay, delaying the feedback signal by a second time delay, receiving a delta-sigma modulator (DSM) error signal, and adjusting the first time delay and the second time delay in opposite directions based on the DSM error signal.