Apparatus and method for processing voice in mobile communication terminal

• US 20050261024A1
• Filed: 12/28/2004
• Published: 11/24/2005
• Est. Priority Date: 05/18/2004
• Status: Abandoned Application

• Current Assignee: Pantech Corporation (Ideahub, Inc.)
• Original Assignee: Pantech Corporation (Ideahub, Inc.)
• Inventors: Jin, Jong Sung
• Application Number:
  US11/024,287
• Publication Number:
  US 20050261024A1
• Time in Patent Office: Days
• US Class Current: 455/557
• CPC Class Codes: H04M 1/0214 Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position combined with translation movement H04M1/0235
• CPC Class Codes: H04M 1/0245 using open/close detection
• CPC Class Codes: H04M 1/6058 involving the use of a headset accessory device connected to the portable telephone
• CPC Class Codes: H04M 1/724 User interfaces specially adapted for cordless or mobile telephones

Abstract

Disclosed are an apparatus and a method for processing voice in a mobile communication terminal, which may prevent howling and echo between a microphone and a receiver of the mobile communication terminal. The apparatus comprises: a main chip for controlling an audio codec; a microphone; a receiver; a handsfree for performing functions of inputting and outputting the voice; an earphone jack for connecting the handsfree to the audio codec; a hall IC for generating folder on/off detecting signal by sensing whether the folder of the mobile communication terminal is opened or closed; and a switch, located in between the microphone and the audio codec, for connecting the microphone and the audio codec based on the folder on/off detecting signal generated by the hall IC and jack detecting signal indicating that the handsfree is connected to the mobile communication terminal.

Claims

1. An apparatus for processing voice in a mobile communication terminal comprising:

a main chip for controlling an audio codec;

a microphone for inputting a voice signal to the audio codec;

a receiver for outputting the voice signal processed by the audio codec;

a handsfree for performing functions of inputting and outputting the voice;

an earphone jack for connecting the handsfree to the audio codec;

a hall IC for generating folder on/off detecting signal by sensing whether the folder of the mobile communication terminal is opened or closed; and

a switch, located in between the microphone and the audio codec, for connecting the microphone and the audio codec based on the folder on/off detecting signal generated by the hall IC and jack detecting signal indicating that the handsfree is connected to the mobile communication terminal.

2. The apparatus according to claim 1, wherein the switch disconnects the microphone and the audio codec upon receiving the jack detecting signal.

3. The apparatus according to claim 2, wherein the switch maintains disconnection between the microphone and the audio codec without the jack detecting signal, while receiving the folder on/off detecting signal indicating closure of the folder.

4. The apparatus according to claim 3, wherein the switch reconnects the microphone and the audio codec upon receiving folder on/off detecting signal indicating openness of the folder.

5. The apparatus according to claim 1, wherein the switch disconnects the microphone and the audio codec upon receiving the folder on/off detecting signal indicating closure of the folder.

6. A method for processing voice in a mobile communication terminal comprising:

disconnecting microphone and audio codec to block voice signal from the microphone, on connecting handsfree and the mobile communication terminal;

maintaining call connection when the handsfree is disconnected from the mobile communication terminal; and

maintaining status of disconnection between the microphone and audio codec until a folder of the mobile communication terminal is opened.