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Communication terminal apparatus and control method thereof

  • US 6,198,948 B1
  • Filed: 06/24/1999
  • Issued: 03/06/2001
  • Est. Priority Date: 04/20/1994
  • Status: Expired due to Term
First Claim
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1. A communication terminal apparatus, comprising:

  • a body having a principal front surface and a side surface extending in a direction substantially perpendicular to said principal front surface;

    transmitting and receiving means arranged in said body;

    selection operation means having a rotatable disc-like member partially protruding from said side surface of said body, said selection operation means being arranged to be rotated in a first direction, so that said selection operation means is actuated when pressed against said side surface;

    operation detection means for detecting operation of said selection operation means is said first direction and in said second direction;

    storage means for storing data of communicates;

    display means disposed on said principal front surface of said body for displaying a plurality of said communicatees;

    display means disposed on said principal front surface of said body for displaying a plurality of said communicatees read out of said storage means; and

    control means for controlling said display means so that one of said plurality of said communicatees is selected on said display means in response to a first detection result of said operation detection means when said selection operation means is operated in said first direction, and for controlling said transmitting and receiving means to originate a call to said one of said plurality of said communicatees selected on said display means in response to a second detection results of said operation detection means when said selection operation means is operated in said second direction, wherein said control means controls said transmitting and receiving means to adjust a reception sound volume in response to operating said selection operation means in said first direction during a communication operation.

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