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:
Oct. 11, 1994
Filed:
Jul. 27, 1992
Leonard E Nelson, Boynton Beach, FL (US);
Darrell A Pfeffer, Delray Beach, FL (US);
James A Wright, Coral Springs, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An on-site selective call receiver interacts with a wide area selective call system to increase the probability of timely message reception by a selective call receiver capable of operating in either the wide area or the on-site selective call system. A frequency shifting signal is transmitted from the wide area system in response to addition of the selective call receiver to the on-site registry or automatic detection of entry of the selective call receiver into the on-site selective call system coverage area. The selective call receiver shifts to the wide area frequency in response to detecting that the receiver is out of range of the on-site system signal or in response to a signal transmitted by the on-site system in response to deletion of the receiver from the on-site registry or detection of the exit of the receiver from the on-site coverage area. The on-site system increases message throughput by interleaving data messages with voice messages. The messages broadcast for the selective call receiver by the wide area system are rebroadcast by the on-site system. The messages broadcast by the on-site system, if data messages, are provided to the wide area system for rebroadcast or, if voice messages are stored in a voice mailbox and a 'voice message stored in mailbox' message is provided to the wide area system for transmission.