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:
Sep. 10, 2002
Filed:
May. 10, 1996
Applicant:
Inventors:
Barry J. Menich, Schaumburg, IL (US);
James P. Aldrich, Glendale Heights, IL (US);
Samuel D. Fernandez, Hoffman Estates, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K 1/00 ; H04Q 7/20 ;
U.S. Cl.
CPC ...
H04K 1/00 ; H04Q 7/20 ;
Abstract
Handoff from a Code-Division, Multiple Access (CDMA) protocol to an Advanced Mobile Phone Service (AMPS) protocol occurs by comparing a remote unit's ( ) phase shift measurement to a threshold ( ) and determining a reference CDMA base station ( ) from an active set of CDMA base stations ( ). Next, corrected phase shifts are calculated for each CDMA base station in the active set ( ) and the remote unit ( ) is handed off to an AMPS base station ( ) underlying the CDMA coverage area ( ) having the smallest corrected phase shift ( ).