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Television distribution system and processing unit used in said distribution system

  • US 7,784,075 B2
  • Filed: 09/24/2002
  • Issued: 08/24/2010
  • Est. Priority Date: 09/25/2001
  • Status: Active Grant
First Claim
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1. System for the distribution of television (TV) type video signals with a frequency band of up to about 5 to 900 MHz, the said system comprising:

  • an input coaxial cable (41) adapted for connection to a TV antenna (4) or to a cable television network,an output coaxial cable (53) adapted for connection to a television set (5), characterised in that it also comprises;

    a first input processing unit (1) comprising a coaxial input terminal (10), at least one low current terminal (11) for twisted wire pairs and processing means (14) for processing TV signals output from the input coaxial cable so as to transform them into signals with substantially the same transmission characteristics on the same frequency band on a twisted wires pair,at least one second output processing unit (3) comprising a low current input port (33) for twisted wire pairs, a coaxial output terminal (31) and processing means (34) for processing signals output from a twisted wires pair (12) connected to the first input processing unit (1) so as to transform them into signals substantially identical to the signals output from the said input coaxial cable (41), andat least one connecting cable (12, 23) consisting of twisted wire pairs connecting the first processing unit (1) to the second processing unit (3),wherein the first input processing unit (1) comprises means of cutting off (16) the signal transmission in the case in which a coaxial cable (53) is not connected to the coaxial output terminal (31) of the second output processing unit (3).

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