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. 08, 1994
Filed:
Apr. 14, 1994
Scott O Nyhart, Algonquin, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A method of determining when a communication device (11) is out-of-range of an incoming call from a central station (25), disallows communication between them for the out-of-range condition. In the central station (25), a page signal is transmitted (20) representing a call to the communication device (11). The central station (25) is capable of receiving (12) signals transmitted by the communication device (11). Recognizing (40) a lack of response by the communication device to the page signal from the central station, the central station withholds the transmission of a call set-up grant signal. Meanwhile, in the communication device, signals transmitted by the central station are received (50). The communication device transmits a page-response signal (555) representing the reception of the page signal. Recognizing an absence of a call set-up grant signal (562), the communication device indicates (563) to the subscriber that the communication device is out-of-range of the coverage area of the central station for the call.