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Direct current power system including standby for community antenna television networks

  • US 3,987,240 A
  • Filed: 06/26/1974
  • Issued: 10/19/1976
  • Est. Priority Date: 06/26/1974
  • Status: Expired due to Term
First Claim
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1. In a direct-current powered community antenna television network system for receiving and distributing video signals to a plurality of receiving subscribers, the combination comprisingmeans for receiving broadcast video signals,coaxial cable means connected to transmit video signals received by said receiving means,means connecting said receiving means to said coaxial cable means for translating all received ultra high frequency video signals to very high frequency video signals,a plurality of direct-current powered amplifiers for enhancing video frequency signals, said amplifiers spaced along and connected to said coaxial cable means,means for supplying continuous direct current power to operate said amplifiers, comprisingrectifying means selectively connected to a source of alternating current power for producing a direct current power output,rechargeable battery means, and,means directly connecting the output of said rectifying means to said battery means and to said coaxial cable means, and,a plurality of subscriber video receivers connected to said coaxial cable means for receiving said enhanced video frequency signals.

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