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. 10, 2006
Filed:
Jan. 10, 2001
Gary Lomp, Centerpot, NY (US);
John Kowalski, Hempstead, NY (US);
Fatih Ozluturk, Port Washington, NY (US);
Avi Silverberg, Commack, NY (US);
Robert Regis, Huntington, NY (US);
Michael Luddy, Sea Cliff, NY (US);
Alexander Marra, New York, NY (US);
Alexander Jacques, Mineola, NY (US);
Gary Lomp, Centerpot, NY (US);
John Kowalski, Hempstead, NY (US);
Fatih Ozluturk, Port Washington, NY (US);
Avi Silverberg, Commack, NY (US);
Robert Regis, Huntington, NY (US);
Michael Luddy, Sea Cliff, NY (US);
Alexander Marra, New York, NY (US);
Alexander Jacques, Mineola, NY (US);
InterDigital Technology Corporation, Wilmington, DE (US);
Abstract
A method and system for rapidly acquiring a spreading code, used in a code division multiple access (CDMA) system. A first long code and a second long code, with each long code having a length of N chips, are generated. The first long code is different from the second long code. The first long code and the second long code are transmitted at a first phase angle and at a second phase angle, respectively, on a carrier signal, over a communications channel using radio waves. The first long code and the second long code may be transmitted at an in-phase (I) angle and at a quadrature-phase (Q) angle, respectively, on the carrier signal. From the communications channel, an I-phase acquisition circuit and a Q-phase acquisition circuit may acquire, in parallel, the first long code and the second long code from the I-phase angle and the Q-phase angle, respectively, of the carrier signal by searching, in parallel, N/2 chips, the first long code and the second long code.