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Method and apparatus for digital cellular internet voice communications

  • US 6,847,632 B1
  • Filed: 12/22/1998
  • Issued: 01/25/2005
  • Est. Priority Date: 12/22/1998
  • Status: Expired due to Term
First Claim
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1. A digital cellular handset comprising:

  • an antenna;

    a radio transceiver connected to said antenna;

    a radio analog-to-digital converter and a radio digital-to-analog converter connected to said transceiver;

    a digital cellular processor/microcontroller connected to said radio analog-to-digital and digital-to-analog converters;

    an Internet protocol processor/microcontroller connected to said digital cellular processor/microcontroller;

    an audio analog-to-digital converter and an audio digital-to-analog converter connected to said Internet protocol processor/microcontroller; and

    a speaker connected to said audio digital-to-analog converter and a microphone connected to said audio analog-to-digital converter;

    wherein, in the receive direction the transceiver receives radio signals from said antenna and converts them into analog baseband signals, the radio analog-to-digital converter converts said analog baseband signals into raw data signals, the digital cellular processor/microcontroller processes said raw data signals into a voice over Internet Protocol packetized data stream, the Internet protocol processor/microcontroller unpacketizes and processes said voice over Internet Protocol packetized data steam into a voice data stream, the audio digital-to-analog converter converts said voice data stream into analog waveforms, and the speaker broadcasts said analog waveforms, and, in the transmit direction the microphone receives analog waveforms, the audio analog-to-digital converter converts said analog waveforms into raw data signals, the Internet protocol processor/microcontroller packetizes and processes said raw data signals into a voice over Internet protocol packetized data stream, the digital cellular processor/microcontroller processes said voice over Internet Protocol packetized data stream into a digital cellular compatible data stream, the radio digital-to-analog converter converts said digital cellular compatible data stream into analog signals, and the transceiver converts the analog signals into a modulated radio carrier signal which is forwarded to said antenna.

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