Mobile communication terminal supporting simultaneous GPS

• US 20060234658A1
• Filed: 10/25/2005
• Published: 10/19/2006
• Est. Priority Date: 01/04/2005
• Status: Abandoned Application

• Current Assignee: Pantech & Curitel Communications Incorporated (Pantech Incorporated)
• Original Assignee: Pantech & Curitel Communications Incorporated (Pantech Incorporated)
• Inventors: Lee, Jae-hyun, Sue, Yoon-min
• Application Number:
  US11/258,295
• Publication Number:
  US 20060234658A1
• Time in Patent Office: Days
• US Class Current: 455/133
• CPC Class Codes: G01S 19/36 relating to the receiver frond end
• CPC Class Codes: H04M 1/72403 with means for local support of applications that increase the functionality
• CPC Class Codes: H04M 2250/10 including a GPS signal receiver

Abstract

There is provided a mobile communication terminal supporting S-GPS (Simultaneous Global Positioning System) which has a controller, a keypad, a display unit, an audio processor, a memory unit, and an RF transceiver, the mobile communication terminal including: a wideband antenna which receives a CDMA-band signal, a PCS-band signal, and a GPS-band signal; a GPS antenna which receives only a GPS-band signal; and a switching unit which switches to connect the wideband antenna or the GPS antenna to a GPS receiver according to a control signal so that a GPS signal can be received via the wideband antenna or the GPS antenna.

Claims

1. A mobile communication terminal supporting S-GPS (Simultaneous Global Positioning System) which includes a controller, a keypad, a display unit, an audio processor, a memory unit, and an RF (radio frequency) transceiver, the mobile communication terminal comprising:

a wideband antenna receiving a CDMA (Code Division Multiple Access)-band signal, a PCS (Personal Communication Services)-band signal, and a GPS-band signal;

a GPS antenna receiving only a GPS-band signal; and

a switching unit switching to connect the wideband antenna or the GPS antenna to a GPS receiver according to a control signal so that a GPS signal can be received via the wideband antenna or the GPS antenna.

2. The mobile communication terminal of claim 1, wherein the switching unit switches to connect the wideband antenna to the GPS receiver upon receiving through the RF transceiver a control signal indicating that a signal is not being transmitted, and the switching unit switches to connect the GPS antenna to the GPS receiver upon receiving through the RF transceiver a control signal indicating that a signal is being transmitted.

3. The mobile communication terminal of claim 1, further comprising a triplexer which allows a CDMA signal and a PCS signal to be transmitted and received and allows a GPS signal to be received via the wideband antenna.

4. The mobile communication terminal of claim 2, further comprising a triplexer which allows a CDMA signal and a PCS signal to be transmitted and received and allows a GPS signal to be received via the wideband antenna.

5. The mobile communication terminal of claim 1, wherein the switching unit is an SPDT (Single Pole Double Throw) switch which switches so that a single input signal can be output to any one of two outputs according to a control signal.

6. The mobile communication terminal of claim 2, wherein the switching unit is an SPDT (Single Pole Double Throw) switch which switches so that a single input signal can be output to any one of two outputs according to a control signal.

7. The mobile communication terminal of claim 1, wherein the wideband antenna is an external antenna of whip type, helical type, or dual type which is a combination of the whip type and the helical type.

8. The mobile communication terminal of claim 2, wherein the wideband antenna is an external antenna of whip type, helical type, or dual type which is a combination of the whip type and the helical type.

9. The mobile communication terminal of claim 1, wherein the GPS antenna is a built-in antenna of chip type or intenna type.

10. The mobile communication terminal of claim 2, wherein the GPS antenna is a built-in antenna of chip type or intenna type.