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:
Apr. 28, 1998
Filed:
Jun. 03, 1996
W Garland Phillips, Arlington, TX (US);
Jheroen P Dorenbosch, Paradise, TX (US);
Terence Edward Sumner, Azle, TX (US);
Motorola, Inc., , US;
Abstract
A messaging system capable of transmitting messages to receivers which roam between coverage areas. In one configuration, a coverage area (600) is divided into a plurality of zones (605, 610, 615). A single simulcast system identification (SSID) number is assigned which consists of a local identification number which identifies the coverage area (600), a zone identifier which identifies a zone (610) within the coverage area, traffic splitting flags and a frequency. For larger roaming areas, a network is defined as consisting of a plurality of service areas and is identified by network identification information (NID). NID information and/or SSID information along with a priority value is stored in a receiver according to desired coverage and like information is transmitted in the corresponding zone or service area and the roaming pager operates on the frequency having the NID or SSID having the highest priority.