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. 26, 2008
Filed:
Feb. 19, 2003
Deepak Mathew, North Billerica, MA (US);
Aiguo Yan, North Andover, MA (US);
Zoran Zvonar, Boston, MA (US);
Abhay Sharma, Wakefield, MA (US);
Deepak Mathew, North Billerica, MA (US);
Aiguo Yan, North Andover, MA (US);
Zoran Zvonar, Boston, MA (US);
Abhay Sharma, Wakefield, MA (US);
Analog Devices, Inc., Norwood, MA (US);
Abstract
A system and method are provided for determining whether a chipping code from a group of codes is used in a signal. In one embodiment of the invention, a signal is received and each code from the group is correlated with the received signal. The ratio of the highest correlation value to the second highest correlation value is calculated. If the ratio exceeds a threshold, the chipping code may be determined as the chipping code used in the signal. In another embodiment, the ratio of the highest correlation value and the total received power of the signal is calculated. If the ratio exceeds a threshold, the chipping code may be determined as the chipping code used in the signal.