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Radio receiving with microprocessor control

  • US 5,483,689 A
  • Filed: 05/07/1993
  • Issued: 01/09/1996
  • Est. Priority Date: 05/07/1993
  • Status: Expired due to Term
First Claim
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1. A radio receiver comprising,a radio tuner tunable to a station frequency having a radio frequency input and an audio output for providing a radio audio signal,an audio signal amplifying system having an audio input and an electroacoustical transducing output for providing a transduced audio signal characterized by a volume level,a volume controller coupled to said radio tuner and said audio amplifying system for setting said volume level,a visible display that displays decimal numbers in a common set of digit locations representative of only one of station frequency, volume level and time, during mutually exclusive time intervals,an array of controls,a microprocessor coupled to said radio tuner, said volume controller, said display and said array of controls,said microprocessor constructed and arranged to respond to actuation of said controls to cause said radio tuner to be tuned to a selected station frequency, cause said visible display common set of digit locations to display the selected station frequency to which said radio tuner is tuned for a predetermined station display time interval, cause said volume controller to set said volume level and cause said display common set of digit locations to display a quantity representative of said volume level for a predetermined volume level display time interval and further constructed and arranged to respond to actuation of said controls to initially set said volume level to zero when said receiver turns on and gradually increasing said volume level to a predetermined volume setting during said volume level display time interval.

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