PRESS-BUTTON CIRCUIT AND DRIVING METHOD THEREOF, KEYPAD, AND DISPLAY DEVICE
First Claim
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1. A press-button circuit, comprising:
- a first sampling port;
a second sampling port;
a common terminal;
a first control device, coupled to the first sampling port and the second sampling port;
at least one first press-button sub-circuit, coupled to the first sampling port and the common terminal; and
at least one second press-button sub-circuit, coupled to the second sampling port and the common terminal.
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Abstract
Press-button circuit and a driving method thereof are provided. A press-button circuit includes a first sampling port; a second sampling port; a common terminal; a first control device, coupled to the first sampling port and the second sampling port; at least one first press-button sub-circuit, coupled to the first sampling port and the common terminal; and at least one second press-button sub-circuit, coupled to the second sampling port and the common terminal.
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20 Claims
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1. A press-button circuit, comprising:
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a first sampling port; a second sampling port; a common terminal; a first control device, coupled to the first sampling port and the second sampling port; at least one first press-button sub-circuit, coupled to the first sampling port and the common terminal; and at least one second press-button sub-circuit, coupled to the second sampling port and the common terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for driving a press-button circuit, comprising:
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providing the press-button circuit, including;
a node, coupled to a first sampling port via a first control device, and coupled to a second sampling port via the second control device;
a number of (m) first press-button sub-circuits, coupled to the first sampling port and the common terminal;
a number of (n) second press-button sub-circuits, coupled to the second sampling port and the common terminal; and
a number of (i) third press-button sub-circuits, coupled to the node and the common terminal, wherein m, n, and i are integers of 1 or greater;controlling the first and second control devices, such that the first, second, and third press-button sub-circuits form a sampling port through a circuit arrangement including (m+n+i) press-button sub-circuits; controlling the first and second control devices, such that the first sampling port uses a circuit arrangement including (m+n) press-button sub-circuits, and the second sampling port uses a circuit arrangement including (i) press-button sub-circuits; and controlling the first and second control devices, such that the first sampling port uses a circuit arrangement including (m) press-button sub-circuits, and the second sampling port uses a circuit arrangement including (n+i) press-button sub-circuits. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification