Patent ID: 6847632
Filing Date: 2005-01-25
Classification: H04L,H04W

Abstract:
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.