Jeffrey J Todd

US Patent:

20040068759, Apr 8, 2004

Filed:

Oct 2, 2002

Appl. No.:

10/262757

Inventors:

Denis Sheehy - Shelton CT, US
Jeffrey Todd - Danbury CT, US
Larry Thomas - Newtown CT, US

Assignee:

Arion Technologies, Inc.

International Classification:

H04N007/173
H04N005/38
H04N007/16
H04N005/40

US Classification:

725/147000, 725/146000, 725/116000, 725/117000, 348/723000, 348/724000

Abstract:

An audio/visual distribution system includes head end equipment for receiving a radio frequency audio-visual (A/V) signal from an information source, and a plurality of transmitters and receivers. The transmitters are coupled to the head end equipment and tune to any of a plurality of RF channels, convert the RF signal to a baseband A/V signal and transmit the baseband signal over twisted pair cabling for a distance of up to 2000 feet. The receivers receive the baseband signal and reconvert the baseband signal to an RF signal. The transmitters utilize differential drivers which receive voltages from a filtered split supply power source in order to drive the baseband signals over twisted pairs. The receivers include equalizers utilized in conjunction with the video signal, and differential amplifiers. The receivers generate NTSC baseband (stereo) audio and video signals and/or an RF signal.