Image processing device, image processing chip and image processing method

1. An image processing device, configured to process an image signal, comprising:

a circuit board;

a slot, disposed on the circuit board, to be plugged in by either a first connector corresponding to a first image interface format or a second connector corresponding to a second image interface format; and

an image processing module, disposed on the circuit board and coupled to the slot, configured to detect the image signal inputted from either the first connector or the second connector to determine a target image interface format, and to process the image signal by an image processing method corresponding to the target image interface format,

wherein the first image interface format is High-Definition Multimedia Interface (HDMI) format, and the second image interface format is DisplayPort interface format, and

wherein when the image processing module detects that the image signal provides a stable voltage as a voltage source at a predetermined pin of the slot, the image processing module determines the target image interface format as HDMI format.

2. The image processing device according to claim 1 , wherein when image processing module detects that the image signal does not provide a stable voltage as a voltage source at a predetermined pin of the slot, the image processing module determines the target image interface format as DisplayPort interface format.

3. The image processing device according to claim 1 , wherein the first connector further corresponds to Mobile High-Definition Link (MHL) interface format; when the image processing module detects that the image signal does not provide a stable voltage as a voltage source at a predetermined pin, the image processing module further detects whether a predetermined reference pin of the slot is at a reference voltage level; if so, the image processing module determines the target image interface format as MHL interface format, or else the image processing module determines the target image interface format as DisplayPort interface format.

4. The image processing device according to claim 1 , wherein the first image interface format is MHL interface format, and the second image interface format is DisplayPort interface format; the image processing module detects whether a predetermined reference pin of the slot is at a reference voltage level; if so, the image processing module determines the target image interface format as MHL interface format, or else the image processing module determines the target image interface format as DisplayPort interface format.

5. The image processing device according to claim 1 , wherein the image processing module is an image scalar chip.

6. The image processing device according to claim 1 , wherein the slot has a plurality of pins, and at least one of the pins is shared by the first connector and the second connector.

7. An image processing chip, coupled to a slot receiving an image signal to process the image signal, comprising a plurality of pins, the image processing chip detecting a target image interface format and processing the image signal by an image processing method corresponding to the target image interface format, wherein each of the plurality of pins corresponds to a pin of the slot, and at least one of the plurality of pins of the slot is shared by a first connector corresponding to a first image interface format and a second connector corresponding to a second image interface format,

wherein the first image interface format is HDMI interface format, and the second image interface format is DisplayPort interface format, and

wherein when the image processing chip detects that the image signal provides a stable voltage as a voltage source at a predetermined pin of the slot, the image processing chip determines the target image interface format as HDMI format.

8. The image processing chip according to claim 7 , wherein when image processing chip detects that the image signal does not provide a stable voltage as a voltage source at a predetermined pin of the slot, the image processing chip determines the target image interface format as DisplayPort interface format.

9. The image processing chip according to claim 7 , wherein when the image processing chip detects that the image signal does not provide a stable voltage as a voltage source at a predetermined pin of the slot, the image processing chip further detects whether a predetermined reference pin of the slot is at a reference voltage level; if so, the image processing chip determines the target image interface format as MHL interface format, or else the image processing chip determines the target image interface format as DisplayPort interface format.

10. The image processing chip according to claim 7 , wherein the first image interface format is MHL interface format, and the second image interface format is DisplayPort interface format; the image processing chip detects whether a predetermined reference pin of the slot is at a reference voltage level; if so, the image processing chip determines the target image interface format as MHL interface format, or else the image processing chip determines the target image interface format as DisplayPort interface format.

11. The image processing chip according to claim 7 , wherein the image processing chip is an image scalar chip.

12. An image processing method, for processing an image signal, comprising:

receiving the image signal from either a first connector or a second connector via an image receiving interface, wherein the image receiving interface comprises a plurality of pins, at least one of the pins is shared by the first connector and the second connector, and the first connector corresponds to a first image interface format and the second connector corresponds to a second image interface format;

detecting the image signal to determine a target image interface format; and

processing the image signal by an image processing method corresponding to the target image interface format,

wherein the first image interface format is HDMI format, and the second image interface format is DisplayPort interface format,

wherein when the detecting step detects that the image signal provides a stable voltage as a voltage source at a predetermined pin of the image receiving interface, the target image interface format is determined as HDMI format.

13. The image processing method according to claim 12 , wherein when the detecting step detects that the image signal does not provide a stable voltage as a voltage source at a predetermined pin of the image receiving interface, the target image interface format is determined as DisplayPort interface format.

14. The image processing method according to claim 12 , wherein when the detecting step detects that the image signal does not provide a stable voltage as a voltage source at a predetermined pin of the image receiving interface, the detecting step further detects whether a predetermined reference pin of the image receiving interface is at a reference voltage level; if so, the target image interface format is determined as MHL interface format, or else the target image interface format is determined as DisplayPort interface format.

15. The image processing method according to claim 12 , wherein the first image interface format is MHL interface format, and the second image interface format is DisplayPort interface format; the detecting step detects whether a predetermined reference pin of the image receiving interface is at a reference voltage level; if so, the target image interface format is determined as MHL interface format, or else the target image interface format is determined as DisplayPort interface format.