Detection method of touch-panel device
First Claim
1. A detection method for a touch-panel device having a touch pad electrically connected to at least m×
- n equivalent capacitors, wherein m is a number of said equivalent capacitors on a specific one of rows and n is a number of said equivalent capacitors on a specific one of columns, comprising steps of;
(a) charging said m equivalent capacitors on said specific row to obtain m digital signals;
(b) comparing potentials of said m digital signals and obtaining a relatively smallest potential as a standard value;
(c) repeating said steps (a)˜
(b) to obtain n said standard values for said m ×
n equivalent capacitors;
(d) touching said touch pad;
(e) scanning said touch pad to obtain at least a potential variation value relative to said standard value for said m equivalent capacitors on said specific row; and
(f) comparing said standard value with said variation value to identify a touched point on said touch pad.
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Accused Products
Abstract
A detection method for a touch-panel device having a touch pad electrically connected to at least m×n equivalent capacitors is provided, wherein m is a number of the equivalent capacitors on a specific one of rows and n is a number of the equivalent capacitors on a specific one of columns. The method includes steps of: (a) charging the m equivalent capacitors on the specific row to obtain m digital signals; (b) comparing potentials of the m digital signals and obtaining a relatively smallest potential as a standard value; (c) repeating the steps (a)˜(b) to obtain n the standard values for the m×n equivalent capacitors; (d) touching the touch pad; (e) scanning the touch pad to obtain at least a potential variation value relative to the standard value for the m equivalent capacitors on the specific row; and (f) comparing the standard value with the variation value to identify a touched point on the touch pad.
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Citations
20 Claims
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1. A detection method for a touch-panel device having a touch pad electrically connected to at least m×
- n equivalent capacitors, wherein m is a number of said equivalent capacitors on a specific one of rows and n is a number of said equivalent capacitors on a specific one of columns, comprising steps of;
(a) charging said m equivalent capacitors on said specific row to obtain m digital signals;
(b) comparing potentials of said m digital signals and obtaining a relatively smallest potential as a standard value;
(c) repeating said steps (a)˜
(b) to obtain n said standard values for said m ×
n equivalent capacitors;
(d) touching said touch pad;
(e) scanning said touch pad to obtain at least a potential variation value relative to said standard value for said m equivalent capacitors on said specific row; and
(f) comparing said standard value with said variation value to identify a touched point on said touch pad. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- n equivalent capacitors, wherein m is a number of said equivalent capacitors on a specific one of rows and n is a number of said equivalent capacitors on a specific one of columns, comprising steps of;
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10. A detection method for a touch-panel device having a touch pad electrically connected to a plurality of equivalent capacitors, comprising steps of:
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(a) charging said equivalent capacitors to obtain digital signals;
(b) comparing potentials of said digital signals and obtaining a relatively smallest potential as a standard value;
(c) touching said touch pad;
(d) scanning said touch pad to obtain at least a variation value relative to said standard value for each of said equivalent capacitors; and
(e) comparing said standard value with said variation value to identify a touched point on said touch pad. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A detection method for a touch-panel device having m×
- pads respectively electrically connected to capacitors, wherein m is a number of said pads on a specific one of rows and n is a number of said pads on a specific one of columns, comprising steps of;
(a) charging said m capacitors on said specific row to obtain m digital signals;
(b) comparing potentials of said m digital signals and obtaining a relatively smallest potential as a standard value;
(c) repeating said steps (a)˜
(b) to obtain n said standard values for said m×
n said capacitors;
(d) touching said touch-panel device;
(e) scanning said touch-panel device to obtain at least a variation value relative to said standard value for said m capacitors on said specific row; and
(f) comparing said standard value with said variation value to identify a touched pad on said touch-panel device.
- pads respectively electrically connected to capacitors, wherein m is a number of said pads on a specific one of rows and n is a number of said pads on a specific one of columns, comprising steps of;
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20. A detection method for a touch-panel device having at least one pad electrically connected to a capacitor, comprising steps of:
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charging said capacitor to obtain a digital signal;
detecting a potential of said digital signal and obtaining a potential as a standard value;
touching said touch-panel device;
scanning said touch-panel device to obtain at least a variation value relative to said standard value for said capacitor; and
comparing said standard value with said variation value to identify a touched pad on said touch-panel device.
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Specification