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. 10, 2007
Filed:
Mar. 27, 2003
Wim Cresens, Rotselaar, BE;
Wim Cresens, Rotselaar, BE;
Agilent Technologies, Inc., Santa Clara, CA (US);
Abstract
A method for the acquisition of synchronisation signals in a spread spectrum communication system includes: Receiving a synchronisation signal, Applying to said synchronisation signal a dwelling procedure, including calculating a matched filter output, calculating the energy value of said matched filter output, and accumulating said energy values over a range equal to the slot length in a RAM, Repeating said dwelling procedure, After each dwelling procedure searching the maximum energy value and the corresponding RAM address, Comparing the address found with the address corresponding to the maximum in the previous dwelling procedure, If said address is the same, incrementing a counter that keeps the number of consecutive occurrences of a maximum at the same position, otherwise setting the counter to zero, When said counter reaches a user defined threshold value, breaking off the dwelling procedure, and Passing said RAM address to a receiver timing device.