Mobile communication terminal for transmitting/receiving image data over group communication network and method for transmitting/receiving image data using the mobile communication terminal

• US 20060077996A1
• Filed: 10/04/2005
• Published: 04/13/2006
• Est. Priority Date: 10/04/2004
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Dong Cheon
• Granted Patent: US 7,683,925 B2
• Time in Patent Office: Days
• US Class Current: 370/441
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 65/4061 Push-to services, e.g. push-to-talk or push-to-video
• CPC Class Codes: H04M 1/72427 for supporting games or graphical animations
• CPC Class Codes: H04M 1/72439 for image or video messaging
• CPC Class Codes: H04W 4/10 Push-to-Talk [PTT] or Push-On-Call services
• CPC Class Codes: H04W 76/45 for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services

Abstract

A mobile communication terminal for transmitting/receiving image data over a group communication network includes: a push-to-talk (PTT) key for requesting a transmission right in a group communication mode; a vocoder for encoding a user voice signal received via a microphone; a memory for storing various image data; a controller for combining voice data received from the vocoder with the image data read from the memory to form a packet, or separating the image data from the received packet to perform an output control process; and a transceiver for transmitting packet data received from the controller to a group communication management center, or receiving the packet data from the group communication management center.

Claims

1. A method of transmitting/receiving image data over a group communication network using a mobile communication terminal, comprising the steps of:

a) establishing step to establish a call setup process for performing group communication;

b) transmitting step to transmit a packet from a caller having a transmission right to a base station, wherein the caller combining an image data with encoded voice to perform the packet; and

c) receiving step to receive the packet by a receiver a member terminal of the same network as the group communication network, wherein the receiver separating the image data from the received packet, and displaying the image data simultaneously with outputting the voice data.

2. The method according to claim 1, wherein the image data is formed by converting an image signal entered by the caller into code graphic data.

3. The method according to claim 2, wherein the code graphic data includes only data of an image changed in real time.

4. The method according to claim 2, wherein the code graphic data is indicative of a meta file configured in the form of a script.

5. The method according to claim 4, wherein the meta file represents operations to depict diagram pre-defined as an object.

6. The method according to claim 2, wherein the code graphic data is formed by combination of a Push-To-Talk (PTT) switch for the group communication and a navigation key.

7. The method according to claim 1, wherein the packet includes a Push-To-Talk (PTT) header,

wherein the PTT header comprises:

a PTT header length (PHL) value;

an image data length (IDL) value;

a voice data length (VDL) value; and

a cyclic redundancy check (CRC) value associated with all PTT data including the PTT header.

8. The method according to claim 1, wherein the packet is performed by the process comprises:

recording a header length of the packet;

recording a length of the image data;

recording the image data;

recording a length of the voice data;

recording the voice data; and

recording a cyclic redundancy check (CRC) value.

9. The method according to claim 1, wherein the image data is recorded after being divided into many sub-image data which has a predetermined length.

10. The method according to claim 1, wherein the transmitting step is implemented by a secure mode.

11. The method according to claim 1, wherein the receiving step comprises:

reading a header of the received packet;

separating the image data and the voice data from the received packet;

outputting the separated voice data via a speaker; and

displaying the separated image data on a display unit.

12. The method according to claim 11, wherein the display step displays a received image packet on the display unit in real time whenever the image packet is received.

13. The method according to claim 11, wherein the receiving step further comprises temporarily storing the separated image data.

14. The method according to claim 1, wherein the mobile communication terminal is indicative of a terminal capable of being operated in a Code Division Multiple Access (CDMA) system.

15. The method according to claim 1, wherein the mobile communication terminal is indicative of a terminal capable of being operated in a Global System for Mobile communication (GSM) system.

16. A mobile communication terminal for transmitting/receiving image data over a group communication network, comprising:

a push-to-talk (PTT) key for requesting a transmission right in a group communication mode;

a vocoder for encoding a user voice signal received via a microphone;

a memory for storing various image data;

a controller for combining voice data received from the vocoder with the image data read from the memory to form a packet, or separating the image data from the received packet to perform an output control process; and

a transceiver for transmitting packet data received from the controller to a group communication management center, or receiving the packet data from the group communication management center.

17. The mobile communication terminal according to claim 16, wherein the mobile communication terminal is indicative of a terminal capable of being operated in a Code Division Multiple Access (CDMA) system.

18. The mobile communication terminal according to claim 16, wherein the mobile communication terminal is indicative of a terminal capable of being operated in a Global System for Mobile communication (GSM) system.