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:
Nov. 04, 1997
Filed:
May. 01, 1995
Keith Anthony Chanroo, Boca Raton, FL (US);
Walter Lee Davis, Parkland, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A selective call system (100) has a plurality of base sites (120-124) for communicating with a plurality of selective call receivers (108) with acknowledge-back capability. A base site transmitter (210) transmits signals encoded with a stored location identifier (132), a base site receiver (241) receives acknowledge-back signals in response to the transmitted signals and a controller (206) determines when a selective call receiver (108) is authorized to receive location specific information (134). The base site transmitter (210) downloads the location specific information (134) to the selective call receiver (108) in response to verifying that the selective call receiver (108) is authorized. The selective call receiver (108) the signals having the location identifier (132) and the downloaded location specific information (134). A decoder/controller (306) compares the location identifier (132) received with the stored location identifier (132) of selective call receiver (108) to determine when the selective call receiver (108) has roamed to the new service area and stores the new location identifier (132). An acknowledge-back transmitter (334) transmits the new location identifier (132) to a home service area for enabling paging information to be routed from the home service area to the selective call receiver (108) at the new service area.