Apparatus and method for transmitting and receiving data in a mobile communication terminal
AssigneeLG Electronics Inc.
InventorJae-Eung Kim
Life of this patent
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Abstract
An apparatus for transmitting data from a mobile communication terminal includes an audio codec which converts a voice signal into digital voice data, a detection unit which detects a pause in the digital voice data, and a modulator/demodulator which modulates a signal with non-voice data, converts the modulated signal into an analog non-voice signal, and outputs the analog non-voice signal to the audio codec during the pause in the digital voice data.
Claims20
An apparatus for transmitting data from a mobile communication terminal, comprising:
- an audio codec which converts a voice signal into digital voice data;
- a detection unit which detects a pause in the digital voice data;
- and
- a modulator/demodulator which modulates a signal with non-voice data, converts the modulated signal into an analog non-voice signal, and outputs the analog non-voice signal to the audio codec during the detected pause in the digital voice data, wherein the modulator/demodulator comprises:
- a modulator that modulates the signal with the non-voice data during the detected pause in the digital voice data,
- a D/A converter that converts the modulated signal into the analog non-voice signal,
- a filter that filters the analog non-voice signal, and
- a Low Pass Filter that limits a frequency band of the filtered analog non-voice signal.
An apparatus for receiving data in a mobile communication terminal, comprising:
- a detector which detects a presence of non-voice data in a received data stream;
- an audio codec which converts the non-voice data into an analog non-voice signal;
- and
- a modulator/demodulator which converts the analog non-voice signal into digital non-voice data when the presence of the non-voice data is detected in the received data stream, and demodulates the converted digital non-voice data, wherein the audio codec outputs a voice signal to a speaker.
A method for transmitting data from a mobile communication terminal, comprising:
- converting, by an audio codec of the mobile communication terminal, a voice signal into digital voice data;
- detecting, by a detector of the mobile communication terminal, a pause in the digital voice data;
- modulating a signal with non-voice data, converting the modulated signal into an analog non-voice signal, and outputting the analog non-voice signal to the audio codec during the detected pause in the digital voice data;
- and
- transmitting data from the mobile communication terminal based at least on the analog non-voice signal output to the audio codec.
A method for receiving data in a mobile communication terminal, comprising:
- receiving a data stream at the mobile communication terminal;
- detecting, by a detector of the mobile communication terminal, a presence of non-voice data in the data stream received by the mobile communication terminal;
- converting, by an audio codec of the mobile communication terminal, the non-voice data into an analog non-voice signal;
- converting, by a modulator/demodulator of the mobile communication terminal, the analog non-voice signal into digital non-voice data when the presence of the non-voice data is detected in the received stream;
- demodulating, by the modulator/demodulator of the mobile communication terminal, the converted digital non-voice;
- and
- converting voice data from the received data stream into an analog voice signal, outputting the analog voice signal to a speaker, and outputting the analog voice signal from the speaker.
A mobile communication terminal, comprising:
- a transceiver which transmits and receives voice data;
- an audio codec which processes voice data;
- and
- a processor that cooperates with the audio codec to insert non-voice data between certain portions of voice data transmitted by the transceiver and to detect non-voice data inserted between certain portions of the received voice data, such that the non-voice data is transmitted and received together with the voice data through a single voice communication channel, wherein the processor comprises:
- an input unit which receives user input, and
- a detector which detects pauses in the voice data to be transmitted, wherein the detector compares sound characteristics of a user's voice with sound characteristics of other sounds picked up by the input unit.
Dependencies are inferred from the claim text.