Wireless communication device for receiving mobile broadcasting signal and transmitting/receiving bluetooth signal with single antenna

• US 7,937,046 B2
• Filed: 02/02/2007
• Issued: 05/03/2011
• Est. Priority Date: 07/27/2006
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Seong Wook, Kim, Kee Dug
• Primary Examiner(s): Dao; Minh D
• Application Number:
  US11/702,016
• Publication Number:
  US 20080025276A1
• Time in Patent Office: 1,551 Days
• Field of Search: 455/88, 455/41.2, 455/552.1, 455/553.1, 455/168.1, 455/73, 455/572, 370/276, 370/397, 333/133
• US Class Current: 455/88
• CPC Class Codes: H04B 1/18 Input circuits, e.g. for coupling to an antenna or a transmission line coupling networks between antennas or lines and receivers independent of the nature of the receiver H03H
• CPC Class Codes: H04H 40/18 Arrangements characterised by circuits or components specially adapted for receiving

Abstract

Provided is a wireless communication device for receiving a mobile broadcasting signal and transmitting/receiving a Bluetooth® signal through a single antenna, which allows separation of the two signals using a difference in their frequency bands. A diplexer separates the signals using different band-pass filters. The signals are respectively input into a mobile broadcasting module and a Bluetooth® module. The wireless communication device allows reception of mobile broadcasting and Bluetooth signals within different frequency bands through a single antenna, thus achieving a compact and thin device with a reduced antenna mounting space.

Claims

1. A wireless communication device comprising:

a single antenna for receiving a T-DMB (Terrestrial Digital Multimedia Broadcasting) signal and transmitting and receiving a Bluetooth®

signal;

a diplexer connected to the antenna and including an LPF (Low-Pass Filter) for passing the T-DMB signal and an HPF (High-Pass Filter) for passing the Bluetooth®

signal;

a T-DMB module connected to the LPF for decoding the T-DMB signal; and

a Bluetooth®

module connected to the HPF for converting the Bluetooth®

signal into data,

wherein the T-DMB signal has two different types of signals having first and second frequency bands, respectively.

2. The device of claim 1, further comprising:

a third band-pass filter connected between the LPF and the T-DMB module for passing the T-DMB signal from the first frequency band; and

a fourth band-pass filter connected between the LPF and the T-DMB module for passing the T-DMB signal from the second frequency band.

3. The device of claim 1, wherein the T-DMB signal includes a band-3 signal and an L-band signal.

4. The device of claim 3, further comprising:

a band-3 filter connected between the LPF and the T-DMB module for passing the band-3 signal of the T-DMB signal; and

an L-band filter connected between the LPF and the T-DMB module for passing the L-band signal of the T-DMB signal.

5. The device of claim 1, wherein the signal antenna receives an S-DMB (Satellite DMB) signal and an S-DMB module is connected to the LPF for decoding an S-DMB signal.

6. The device of claim 1, further comprising:

a headset for receiving the Bluetooth®

signal through the antenna.