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. 21, 1995
Filed:
Mar. 02, 1994
Luis R Ortiz Perez, Rio Piedras, PR;
Alexis T Ramos, Carolina, PR;
Telular International, Inc., Buffalo Grove, IL (US);
Abstract
A self-diagnostic system for a checking all functions of a cellular-transceiver system having a cellular-interface unit, which interface unit couples a standard telephone set to a cellular transceiver, which interface unit converts the DTMF or pulse-type of dialing signals into digital format for transmission to the cellular transceiver, whereby the dialed number made on the land-type of telephone may be used to call a number over the cellular system. The present invention not only monitors and checks the proper functioning of the transceiver and associated power supply, and the like, but will also monitor and check the interface unit.