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. 29, 1997
Filed:
Jan. 13, 1995
Keerthilatha Chikkaswamy, Gaithersburg, MD (US);
Harry Johnson, Springfield, VA (US);
Hughes Electronics, Los Angeles, CA (US);
Abstract
A RF sniffer module and method for detecting the availability of cellular communication channels for data transmission. The module monitors the channels used in a cellular communication network to determine when a particular channel is idle, meaning it is not being currently used for communication. The module communicates the status of the channel to an overlay system. Thus, the overlay system is informed that a particular channel is idle and thus can be used for data transmission or that the channel is not available and thus the overlay system can not use that channel without interfering with the operation of the cellular communication network.