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Electronic volume device and remote controller thereof

  • US 7,457,424 B2
  • Filed: 09/15/2003
  • Issued: 11/25/2008
  • Est. Priority Date: 09/20/2002
  • Status: Expired due to Fees
First Claim
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1. An electronic volume device remotely controlled by a remote controller, the electronic volume device comprising:

  • means for receiving an i-th common volume level Dcom[i] (i =1 to N) on a common scale of N steps;

    means for converting received Dcom[i] into a j-th unique volume level Dvol[j] on a unique scale of M steps (M<

    N); and

    means for controlling an attenuation factor based on the Dvol[j], wherein the converting means includes;

    means for storing an offset value Doffset between the Dcom[i] and the Dvol[j]; and

    means for adjusting at least one of the Dvol[j] and the Doffset such that the received Dcom[i] agrees with a sum of the Dvol[j] and the Doffset, wherein the adjusting means adjusts the Dvol[j] on a higher priority than the Doffset, wherein when the common volume level Dcom[i] is transmitted in a mute state, the saved offset value Doffset is recovered and the unique volume level Dvol[j] is set at a value obtained by subtracting the Doffset from the transmitted Dcom [i].

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