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:
Feb. 16, 1993
Filed:
Nov. 05, 1990
Michael J Thompson, Plantation, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A communication unit (114) operates in a communication system (100). The communication unit (114) communicates with a central communication controller via one of a plurality of a communication controllers (104, 108, or 112) that transmits information signals containing its identification along with other information. The communication unit (114) receives and determines the signal strength (RSS) of these information signals. A controller (412) monitors changes in the signal strength of the received information signals over time and determines whether the signal strength has fallen below a predetermined level at a rate of change higher than a predetermined rate. Such sharp fall in signal strength is communicated to a circuit which attempts to access a new channel after waiting for a random amount of time.