Patent Number: 7,085,246

Title: Method and apparatus for acquisition of a spread-spectrum signal

Abstract: An apparatus for acquiring a pseudo-random (PN) sequence timing for a code division multiple access (CDMA) radiotelephone. A buffer stores samples of representations of at least one pilot signal. A correlator coupled to the buffer is operable to correlate at least a portion of the samples with a PN sequence at each of a plurality of different PN offsets to produce corresponding correlation energies. A controller coupled to the correlator interrupts the correlator as soon as the PN sequence at a particular PN offset produces a correlation energy at least equal to an energy threshold.

Inventors: LaRosa; Christopher Peter (Lake Zurich, IL), Storm; Brian David (Round Lake Beach, IL), Carney; Michael John (Woodstock, IL), Becker; Christopher (Palatine, IL), Schirtzinger; Tracie Ann (Woodstock, IL), Steckl; Dave (Elkhorn, WI)

Assignee: Motorola, Inc.

International Classification: H04Q 7/38 (20060101)

Expiration Date: 8/01/02018