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. 13, 2004
Filed:
Feb. 28, 2002
Tore L. Kellgren, San Jose, CA (US);
George Apostol, Jr., Santa Clara, CA (US);
Harsimran S. Grewal, Los Gatos, CA (US);
Brecis Communications Corporation, San Jose, CA (US);
Abstract
A frequency rate multiplier to produce an output with an output frequency as a ratio of an input frequency is described. In one embodiment, the frequency rate multiplier includes an accumulator register to store, based upon a first clock signal having the input frequency, a binary representation of the ratio having a first most significant bit and a second most significant bit, a first adder coupled to the accumulator register in a feedback arrangement to receive the binary representation stored in the accumulator register and, based upon the first clock signal, to repeatedly add the accumulator value to a programmable parameter value representing a component of the output frequency to obtain a first result, a secondary adder coupled between the first adder and the accumulator register to receive the first result and, based upon the second most significant bit, to add a constant value to the first result forming a second result to be stored into the accumulator register.