Apparatus and method for implementing touch control and fingerprint identification

1. An apparatus for implementing touch control and fingerprint identification, comprising: a fingerprint identification sensor, a fingerprint identification circuit, a combination switch and a touch control circuit, wherein

the fingerprint identification sensor comprises a plurality of sub-sensors; the plurality of sub-sensors are coupled to the fingerprint identification circuit, respectively, and coupled to the combination switch, respectively; and the combination switch is coupled to the touch control circuit;

the fingerprint identification sensor is configured to transmit a signal generated by detection of the plurality of sub-sensors to the fingerprint identification circuit when the combination switch is open circuited, and to combine the signal generated by the detection of the plurality of sub-sensors into a touch signal through the combination switch and transmit the touch signal to the touch control circuit when the combination switch is closed;

the fingerprint identification circuit is configured to process the signal generated by the detection of the plurality of sub-sensors; and

the touch control circuit is configured to determine presence of a touch operation according to the combined touch signal.

2. The apparatus of claim 1 , wherein the combination switch is open circuited or closed according to an instruction from a main processor in a terminal device.

3. The apparatus of claim 1 , wherein the plurality of sub-sensors are arranged in a dot array or in a rectangular array.

4. The apparatus of claim 1 , wherein the fingerprint identification circuit comprises:

a signal processing sub-module configured to convert the signal generated by the detection of the plurality of sub-sensors into a digital signal and transmit the digital signal to a main processor in a terminal device.

5. The apparatus of claim 1 , wherein the fingerprint identification circuit comprises:

an image generation sub-module configured to generate a fingerprint image based on the signal generated by the detection of the plurality of sub-sensors and transmit the fingerprint image to a main processor in a terminal device.

6. The apparatus of claim 1 , wherein the fingerprint identification circuit comprises:

a comparison sub-module configured to generate a fingerprint image based on the signal generated by the detection of the plurality of sub-sensors, compare the fingerprint image with a sample image and transmit a comparison result to a main processor in a terminal device.

7. The apparatus of claim 1 , wherein the touch control circuit comprises:

a determination sub-module configured to determine presence of the touch operation according to the combined touch signal and transmit a determination result to a main processor in a terminal device.

8. A method for implementing touch control and fingerprint identification, which can be used in a terminal device comprising a combination switch and a fingerprint identification sensor with a plurality of sub-sensors,

wherein the method comprises:

receiving an instruction from a main processor in the terminal device, wherein the instruction indicates to switch the combination switch between an open-circuited state and a closed state; and

processing a signal generated by detection of the plurality of sub-sensors when the combination switch is open circuited; and

combining the signal generated by the detection of the plurality of sub-sensors into a touch signal through the combination switch when the combination switch is closed, and determining presence of a touch operation according to the combined touch signal.

9. The method of claim 8 , wherein the plurality of sub-sensors are arranged in a dot array or in a rectangular array.

10. The method of claim 8 , wherein processing the signal generated by the detection of the plurality of sub-sensors comprises:

converting the signal generated by the detection of the plurality of sub-sensors into a digital signal and transmitting the digital signal to a main processor in the terminal device.

11. The method of claim 8 , wherein processing the signal generated by the detection of the plurality of sub-sensors comprises:

generating a fingerprint image based on the signal generated by the detection of the plurality of sub-sensors and transmitting the fingerprint image to a main processor in the terminal device.

12. The method of claim 8 , wherein processing the signal generated by the detection of the plurality of sub-sensors comprises:

generating a fingerprint image based on the signal generated by the detection of the plurality of sub-sensors, comparing the fingerprint image with a sample image and transmitting a comparison result to a main processor in the terminal device.

13. The method of claim 8 , wherein determining presence of a touch operation according to the combined touch signal comprises:

determining presence of the touch operation according to the combined touch signal and transmitting a determination result to a main processor in the terminal device.

14. An apparatus for implementing touch control and fingerprint identification, comprising:

a fingerprint identification circuit;

a touch control circuit;

a combination switch coupled to the touch control circuit; and

a fingerprint identification sensor comprising a plurality of sub-sensors coupled to the fingerprint identification circuit, respectively and coupled to the combination switch, respectively, wherein the fingerprint identification sensor is configured to:

transmit signals generated by the plurality of sub-sensors to the fingerprint identification circuit respectively for processing when the combination switch is open circuited; and

transmit a touch signal to the touch control circuit for determining presence of a touch operation when the combination switch is closed, the touch signal being obtained by combining signals generated by the plurality of sub-sensors through the combination switch.