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:
Apr. 29, 2008
Filed:
Aug. 10, 2006
Amr Fahim, Newport Beach, CA (US);
Amr Fahim, Newport Beach, CA (US);
Newport Media, Inc., Lake Forest, CA (US);
Abstract
A method for synthesizing frequencies with a low-jitter an all-digital fractional-N phase-locked loop (PLL) electronic circuit adapted to synthesize frequencies with low-jitter, wherein the electronic circuit comprises a digital phase-frequency detector (DPFD) operatively connected to a digital loop filter (DLF), wherein the DPFD adapted to receive a reference signal and a feedback signal; compare a phase and frequency of the reference and feedback signals to determine a phase and frequency error between the reference and feedback signals; and provide a DPFD output comprising a multi-bit output; wherein the DLF is adapted to receive and filter the DPFD output and provide a DLF output, and wherein the DLF output is updated at each reference period.