Detection device
According to an aspect, a detection device includes: a first detector and a second detector each configured to detect that an object is in contact therewith or in proximity thereto; a signal processor configured to perform signal processing on a detection signal output from the first detector and the second detector; and a selector configured to select one of the first detector and the second detector, and couple the selected one of the first detector and the second detector to the signal processor.
1. A detection device comprising:
a first detector and a second detector each configured to detect that an object is in contact therewith or in proximity thereto;
a signal processor configured to perform signal processing on a detection signal output from the first detector and the second detector; and
a selector configured to select one of the first detector and the second detector, and couple the selected one of the first detector and the second detector to the signal processor,
wherein
the selector comprises:
a first connector configured to couple the first detector to the signal processor;
a first controller configured to control the first connector to couple the first detector to the signal processor in accordance with a control signal supplied from outside;
a second connector configured to couple the second detector to the signal processor; and
a second controller configured to control the second connector to couple the second detector to the signal processor in accordance with the control signal,
the signal processor comprises a plurality of signal processing channels configured to input or output a plurality of signals simultaneously,
the first connector comprises a plurality of circuits each configured to couple one of a plurality of detection electrode groups of the first detector to one of the signal processing channels, the circuits coupling the respective detection electrode groups to the respective signal processing channels simultaneously, and
the second connector comprises a plurality of circuits each configured to couple one of a plurality of detection electrode groups of the second detector to one of the signal processing channels, the circuits coupling the respective detection electrode groups to the respective signal processing channels simultaneously.
2. The detection device according to claim 1 , wherein
the signal processor is provided on a printed circuit board coupled to the first detector and the second detector, and
the selector is provided on the second detector or the printed circuit board.
3. A detection device comprising:
a first detector and a second detector each configured to detect that an object is in contact therewith or in proximity thereto;
a signal processor configured to perform signal processing on a detection signal output from the first detector and the second detector;
a selector configured to select one of the first detector and the second detector, and couple the selected one of the first detector and the second detector to the signal processor; and
a mutual drive signal transmitter configured to output a mutual drive signal to the first detector for performing mutual capacitance detection when the first detector performs the mutual capacitance detection, wherein,
when a first object is in contact with or in proximity to the first detector and a second object is in contact with or in proximity to the second detector, the selector is configured to select the second detector, and output the detection signal output from a detection electrode of the second detector to the signal processor.
4. A detection device comprising:
a first detector and a second detector each configured to detect that an object is in contact therewith or in proximity thereto;
a signal processor configured to perform signal processing on a detection signal output from the first detector and the second detector;
a selector configured to select one of the first detector and the second detector, and couple the selected one of the first detector and the second detector to the signal processor,
wherein
the first detector or the second detector is configured to perform self-capacitance detection,
the signal processor comprises a self-drive signal transmitter configured to output a self-drive signal for performing the self-capacitance detection, and
when a first object is in contact with or in proximity to the first detector and a second object is in contact with or in proximity to the second detector, the selector is configured to select the first detector to output the self-drive signal to a detection electrode of the first detector, and then select the second detector to output the detection signal output from the second detector to the signal processor.
5. The detection device according to claim 3 , wherein
the selector comprises:
a first connector configured to couple the first detector to the signal processor;
a first controller configured to control the first connector to couple the first detector to the signal processor in accordance with a control signal supplied from outside;
a second connector configured to couple the second detector to the signal processor; and
a second controller configured to control the second connector to couple the second detector to the signal processor in accordance with the control signal.
6. The detection device according to claim 3 , wherein
the selector comprises:
a first connector configured to couple the first detector to the signal processor;
a second connector configured to couple the second detector to the signal processor; and
a first controller configured to control the first connector and the second connector to couple the first detector to the signal processor or couple the second detector to the signal processor in accordance with a control signal supplied from outside.
7. The detection device according to claim 3 , wherein
the signal processor is provided on a printed circuit board coupled to the first detector and the second detector, and
the selector is provided on the second detector or the printed circuit board.
8. The detection device according to claim 4 , wherein
the selector comprises:
a first connector configured to couple the first detector to the signal processor;
a first controller configured to control the first connector to couple the first detector to the signal processor in accordance with a control signal supplied from outside;
a second connector configured to couple the second detector to the signal processor; and
a second controller configured to control the second connector to couple the second detector to the signal processor in accordance with the control signal.
9. The detection device according to claim 4 , wherein
the selector comprises:
a first connector configured to couple the first detector to the signal processor;
a second connector configured to couple the second detector to the signal processor; and
a first controller configured to control the first connector and the second connector to couple the first detector to the signal processor or couple the second detector to the signal processor in accordance with a control signal supplied from outside.
10. The detection device according to claim 4 , wherein
the signal processor is provided on a printed circuit board coupled to the first detector and the second detector, and
the selector is provided on the second detector or the printed circuit board.