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.

Date of Patent:
Jun. 16, 1998

Filed:

Oct. 05, 1995
Applicant:
Inventor:

Keith I Mulford, Arlington Heights, IL (US);

Assignee:

Motorola, Inc., Schaumburg, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455 111 ; 455 15 ; 370315 ;
Abstract

A digital voice message, including a continuously embedded portable identification code, is transmitted by a portable communication unit (105) to a mobile communication unit (104) and to broadcast units (101-103). Based on the portable identification code, the mobile communication unit determines that it is associated with the portable communication unit. If, after a first predetermined period of time has elapsed, the mobile communication unit determines that the digital voice message is not being re-transmitted, in real time, by a broadcast unit (101), mobile repeater is enabled by the mobile communication unit and the digital voice message is re-transmitted as a mobile repeated message, thereby effectively extending the transmitting range of the portable communication unit.


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