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Wireless transmitter and device for mobile station

  • US 6,999,737 B2
  • Filed: 07/12/2002
  • Issued: 02/14/2006
  • Est. Priority Date: 07/12/2001
  • Status: Expired due to Fees
First Claim
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1. A wireless transmitter wherein baseband transmission signals of I- and Q-components are amplified by a plurality of variable gain amplifying means via a modulating means for effecting digital/analog conversion and quadrature modulation of the baseband transmission signals, and then, the resulting signals are transmitted from an antenna, comprising:

  • a calculation means for determining an electric power value of said baseband signals to be input to said modulating means;

    a detection means for determining a transmitting electric power value after detecting a transmitting electric power of said antenna;

    a generation means for generating target gains of said plurality of variable gain amplifying means; and

    a control means for determining observation gains from said electric power value and said transmitting electric power value to control the gains of said plurality of variable gain amplifying means in such that the observation gains come to be said target gains.

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