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Apparatus and method for setting an ID number by sound in a cordless telephone

  • US 5,581,598 A
  • Filed: 01/25/1996
  • Issued: 12/03/1996
  • Est. Priority Date: 09/24/1993
  • Status: Expired due to Fees
First Claim
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1. A cordless telephone device comprising a master telephone set connected to a telephone line and a slave telephone set mounted on a cradle of said master telephone set to be electrically charged and connected to said master telephone set through a radio system during a call, and having memory means for storing mutual ID numbers in said master telephone set and said slave telephone set respectively;

  • wherein said cradle of said master telephone set has a sound generating means, said slave telephone set has a sound receiving means located adjacent and opposing to said sound generating means when said slave telephone set is set on said cradle, and the mutual ID number read out from said memory means of said master telephone set is written via said sound generating means and said sound receiving means into said memory means of said slave telephone set for registration of said mutual ID number in said slave telephone set, wherein said sound generating means generates a pre-signal sound before an ID signal sound representing said mutual ID number, to prevent errors in establishing a mode of waiting for reception of said mutual ID number.

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