SIGNAL RECEIVING METHODS AND DEVICES

• US 20110216248A1
• Filed: 03/05/2010
• Published: 09/08/2011
• Est. Priority Date: 03/05/2010
• Status: Active Grant

• Current Assignee: MiTAC International Corporation (MiTAC Holdings Corp.)
• Original Assignee: MiTAC International Corporation (MiTAC Holdings Corp.)
• Inventors: CHEN, Junqin
• Granted Patent: US 8,571,503 B2
• Time in Patent Office: Days
• US Class Current: 348/731
• 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: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/4383 Accessing a communication channel
• CPC Class Codes: H04N 21/482 End-user interface for program selection broadcast systems using EPGs H04H60/72
• CPC Class Codes: H04N 21/6112 involving terrestrial transmission, e.g. DVB-T
• CPC Class Codes: H04N 5/50 Tuning indicators; Automatic tuning control

Abstract

A signal receiving method for receiving a signal within a predetermined bandwidth for a broadcasting system using an embedded antenna is provided, comprising: obtaining an antenna bandwidth of the embedded antenna; dividing the predetermined bandwidth into a plurality of subbands according to the antenna bandwidth; receiving a control signal; selecting one of the subbands according to the control signal; and receiving the signal using a match unit corresponding to the selected subband for matching the embedded antenna.

Claims

1. A signal receiving method for receiving a signal within a predetermined bandwidth for a broadcasting system using an embedded antenna, comprising:

obtaining an antenna bandwidth of the embedded antenna;

dividing the predetermined bandwidth into a plurality of subbands according to the antenna bandwidth;

receiving a control signal;

selecting one of the subbands according to the control signal; and

receiving the signal using a match unit corresponding to the selected subband for matching the embedded antenna.

2. The signal receiving method of claim 1, wherein the broadcasting system is a digital video broadcasting-terrestrial (DVB-T) system.

3. The signal receiving method of claim 2, wherein the predetermined bandwidth is from 470 MHz to 870 MHz.

4. The signal receiving method of claim 1, wherein the amount of the subbands equals to the round(x/y)+1 when (x/y) does not equal an integer, and the amount of the subbands equals to the round(x/y) when (x/y) equals an integer, wherein the parameter x represents the predetermined bandwidth and the parameter y represents the antenna bandwidth of the embedded antenna.

5. The signal receiving method of claim 1, further comprising:

generating the control signal according to channel information received from a user interface by a control central processing unit.

6. The signal receiving method of claim 5, further comprising:

generating the channel information according to a channel selected by a user.

7. The signal receiving method of claim 3, wherein the amount of the subbands equals to 4 and the antenna bandwidth is 120 MHz when the predetermined bandwidth is 430 MHz, and the subbands are non-overlop.

8. A signal receiving device for a broadcasting system, comprising:

an embedded antenna for receiving a signal within a predetermined bandwidth; and

a match device comprising a plurality of match units, selectively coupling one of the match units to the embedded antenna according to a control signal, and receiving the signal through the match unit coupled to the embedded antenna, wherein the match units are respectively corresponding to different subbands.

9. The signal receiving device of claim 8, wherein the subbands are obtained by dividing the predetermined bandwidth according to the antenna bandwidth.

10. The signal receiving device of claim 8, wherein the broadcasting system is digital video broadcasting-terrestrial (DVB-T) system.

11. The signal receiving device of claim 8, wherein the predetermined bandwidth is from 470 MHz to 870 MHz.

12. The signal receiving device of claim 8, wherein the amount of the match units equals to the round(x/y)+1 when (x/y) does not equal an integer and the amount of the match units equals to the round(x/y) when (x/y) equals an integer, wherein the parameter x represents the predetermined bandwidth and the parameter y represents the antenna bandwidth of the embedded antenna.

13. The signal receiving device of claim 8, further comprising a central processing unit for generating the control signal according to channel information from a user interface.

14. The signal receiving device of claim 8, further comprising the user interface for generating the channel information according to a channel selected by a user.

15. The signal receiving device of claim 8, wherein the match unit comprises a first switch for coupling the selected match unit to the embedded antenna according to the control signal.

16. The signal receiving device of claim 8, wherein the match unit further comprises a second switch for coupling the selected match unit to a turner.

17. The signal receiving device of claim 15, wherein the first switch is a single pole four throw (SP4T) switch.

18. The signal receiving device of claim 16, wherein the second switch is a single pole four throw (SP4T) switch.

19. The signal receiving device of claim 12, wherein the amount of the match units equals to four and the antenna bandwidth is 120 MHz when the predetermined bandwidth is 430 MHz.

20. The signal receiving device of claim 19, wherein the match device comprises a first match unit, a second match unit, a third match unit and a fourth match unit, wherein a first subband corresponding to the first match unit is from 450 MHz to 560 MHz, a second subband corresponding to the second match unit is from 560 MHz to 670 MHz, a third subband corresponding to the third match unit is from 670 MHz to 780 MHz and a fourth subband corresponding to the fourth match unit is from 780 MHz to 890 MHz, wherein the first subband, the second subband, the third subband and the fourth subband are non-overlop.