Patent Number: 7,712,120

Title: System and method for distributing DBS content to multiple receivers in the home over a single coax

Abstract: A satellite transponder switch (STS) maintains a table that maps set-top boxes (STBs) to carrier frequencies. The STS receives a first request from a first STB for a first transponder band and a second request from a second STB for a second transponder band. The STS accesses a first satellite feed and polarity based on the first request, and a second satellite feed and polarity based on the second request. The STS band-pass filters the first and second transponder bands from the first and second satellite feed and polarity, respectively. The STS frequency shifts the first transponder band to a first carrier frequency assigned to the first STB and the second transponder band to a second carrier frequency assigned to the second STB. The STS outputs a signal that comprises the frequency-shifted first and second transponder bands to the first STB and the second STB.

Inventors: Nadarajah; Dinesh (Austin, TX), Ansari; Ahmad C. (Austin, TX)

Assignee: AT&T Intellectual Property I, L.P.

International Classification: H04N 7/20 (20060101)

Expiration Date: 5/04/12018