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. 11, 2003
Filed:
Nov. 19, 1999
Rajendra A. Panchal, Algonquin, IL (US);
Alex Rozenstrauch, Buffalo Grove, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
The present invention addresses the need for an apparatus and method for providing dispatch group and individual call services on a CDMA communication system. Generally, the present invention discloses modifications to the IS-95 CDMA standard such as substituting a dispatch identifier (e.g., ) for the Electronic Serial Number (ESN) used to generate CDMA long-code masks (e.g., ). In the present invention, transmitted voice information is encoded using a long-code mask thus derived. In addition, a dispatch identifier is used to determine ( and ) the appropriate paging resource for transmitting and receiving dispatch call pages.