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. 18, 1995
Filed:
Aug. 11, 1992
David L Hattey, Lynchburg, VA (US);
Marc A Dissosway, Forest, VA (US);
Samuel Maedjaja, Lynchburg, VA (US);
Houston H Hughes, III, Lynchburg, VA (US);
Jeffrey S Childress, Delafield, WI (US);
Ericsson GE Mobile Communications Inc., Research Triangle Park, NC (US);
Abstract
A single channel autonomous trunking ('SCAT') RF repeater transmits and receives on a single duplex RF channel. The repeater operates alternately in a control channel mode and in an assigned channel mode. Digital control channel signalling results in temporary assignment of the single channel for assigned channel signalling (e.g., mobile generated messages). A holdover time period following reversion of the channel to control channel signalling minimizes collisions and permits priority to be given to emergency communications. Low speed data subaudible digital signalling may be used to provide late entry capabilities.