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:
Oct. 08, 2013
Filed:
Mar. 30, 2012
Parastoo Nikaeen, Mountain View, CA (US);
Stefanos Sidiropoulos, Palo Alto, CA (US);
Marc Joseph Loinaz, Palo Alto, CA (US);
Parastoo Nikaeen, Mountain View, CA (US);
Stefanos Sidiropoulos, Palo Alto, CA (US);
Marc Joseph Loinaz, Palo Alto, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
Systems, methods, and circuits provide a digital frequency synthesizer where the output of the frequency synthesizer is a fractional factor of an input signal frequency. The digital frequency synthesizer may comprise a time to digital converter. A ramp offset signal may be added to the output of the time to digital converter. The ramp offset signal may be added to the output of a TDC until a reference dock signal reaches a value of pi. At such a point, the reference clock signal may be switched and the ramp offset signal may be restarted. As such, a frequency offset may be introduced at the input of the time to digital converter where the frequency offset may be modified by changing the slope of the ramp offset signal.