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:
Aug. 11, 2009
Filed:
Nov. 12, 2007
Anton Monk, San Diego, CA (US);
Brett Bernath, San Diego, CA (US);
Itzhak Gurantz, San Diego, CA (US);
Ladd El Wardani, La Jolla, CA (US);
Ron Porat, La Jolla, CA (US);
Anton Monk, San Diego, CA (US);
Brett Bernath, San Diego, CA (US);
Itzhak Gurantz, San Diego, CA (US);
Ladd El Wardani, La Jolla, CA (US);
Ron Porat, La Jolla, CA (US);
Entropic Communications, Inc., San Diego, CA (US);
Abstract
A broadband local area data network uses coaxial cable wiring for interconnection of terminal devices. Orthogonal frequency division multiplexing (OFDM) with bit loading is used to overcome channel impairments and provide a path for terminal devices to transmit to and receive from other terminal devices. Probe messages are sent between devices to characterize the communication channel and determine optimum bit loading. The data network shares the cable spectrum with other services and uses frequency bands not used by other services. Adaptive power control can be used to maintain signal to noise ratio in a communication between terminal devices. Frequency coordination can be used to avoid interference between the LAN communications and other services transmitted on the cable.