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Method and system for controlling operation mode switching of portable television (TV) phone

  • US 6,529,742 B1
  • Filed: 12/27/1999
  • Issued: 03/04/2003
  • Est. Priority Date: 12/26/1998
  • Status: Expired
First Claim
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1. A method of controlling switching of an operation mode of a TV phone, where the TV phone includes a TV unit that reproduces and outputs a video signal and an audio signal from a selected channel, a display unit that interfaces with the TV unit and receives and displays the video signals from the TV unit while in a TV mode, a TV audio signal processor that receives the audio signal from the TV unit and outputs audible sound, a mobile radio frequency processor (MRFU) that receives data of a forward channel transmitted from a base station, and a mobile signal processor (MSP) that provides a channel selecting signal to the TV unit in the TV mode, and transmits and receives an audio signal input from the MRFU in a phone mode, the method comprising the steps of:

  • alerting a user of an incoming call in response to an incoming call signal transmitted from the base station when the TV phone is in the TV mode;

    superimposing information on the display unit about the incoming call; and

    automatically disabling the TV unit and switching directly from the TV mode to the phone mode.

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