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:
Feb. 06, 2007
Filed:
Mar. 13, 2001
Kaveh Shakeri, Atlanta, GA (US);
Alireza Mehrnia, Los Angeles, CA (US);
Ali A. Eftekhar, Tehran, IR;
Massoumeh Nassiri, Tehran, IR;
Ali Fotowat-ahmady, San Rafael, CA (US);
Kaveh Shakeri, Atlanta, GA (US);
Alireza Mehrnia, Los Angeles, CA (US);
Ali A. Eftekhar, Tehran, IR;
Massoumeh Nassiri, Tehran, IR;
Ali Fotowat-Ahmady, San Rafael, CA (US);
PRI Research & Development Corp., Torrance, CA (US);
Abstract
One embodiment of the present invention includes a first memory, an address counter, and an adder. The first memory having KN locations stores K sums of mixer samples during an epoch interval. The mixer samples are generated at a first clock frequency from a mixer for N channels corresponding to N satellites in a global positioning system (GPS) receiver. The address counter generates an address modulo-KN corresponding to a first location in the memory at the first clock frequency. The adder adds one of the mixer samples to contents of the first location to generate a sum. The sum is written into the first location.