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Multiple zone audio system

  • US 5,182,552 A
  • Filed: 12/07/1990
  • Issued: 01/26/1993
  • Est. Priority Date: 08/24/1989
  • Status: Expired due to Term
First Claim
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1. Apparatus for controlling multiple program signals in an audio system comprising,a central unit at a central location having a plurality of program source inputs for receiving a corresponding plurality of audio input signals,said central unit having at least two central unit outputs for receiving selected ones of the audio signals applied to said program source inputs,said central unit having at least two central unit selectors for independently selecting from said program source inputs to simultaneously deliver different selected ones of audio input signals on said program source inputs to respective ones of said central unit outputs,said central unit having a central unit controller controlling said selectors,said central unit having a central unit interface to said central unit controller having at least a source selection input and at least a general functional input corresponding to control functions associated with signals delivered to said outputs,said central unit having a central unit receiver,said central unit interface being coupled to said central unit receiver for receiving signals modulated with selection and control signals for controlling said control functions,a remote interface comprising a hand-held transmitter that radiates a carrier signal to said central unit receiver modulated with said selection and control signals so that an operator in a location remote from said central location may remotely operate said control unit selectors and said control functions.

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