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US 2014/0198075 A1Published application
Detection method and device for touch screen
AssigneeEgalax_Empia Technology Inc.
InventorSHANG-TAI YEH
Life of this patent
Estimating the term…
Abstract
A detection method and device for a touch screen is provided. When a pen touching or approaching the touch screen is detected, only the location of the pen in a predetermined range is provided, and the locations of all other objects within the predetermined range are not provided, such as the location of a palm. Only when the pen is no longer detected over a predetermined period of time, then the locations of objects other than the pen in the predetermined range are provided again.
Claims14
A detection device for a touch screen, comprising:
- the touch screen for detecting signals for approaches or touches of external conductive objects thereon;
- a controller for, when determining at least one external conductive object is a pen based on the signals on the touch screen, recording the location of each pen and a predetermined range for the location of each pen or areas touched or approached by one or more external conductive objects other than the pen in the predetermined range;
- and
- a memory for storing a flag corresponding to each pen, each flag corresponding to the predetermined range of the corresponding pen, the flag being set to a true value when the existence of the corresponding pen is detected by the controller, and the flag being set to a false value only if the existence of the corresponding pen is not detected by the controller over a predetermined period of time,
- wherein the locations of all the external conductive objects in the predetermined range corresponding to a flag being set to the true value are not provided by the controller.
2 more elements
A detection method for a touch screen, comprising:
- providing signals for approaches or touches of external conductive objects on a touch screen;
- when determining at least one external conductive object is a pen based on the signals on the touch screen, recording the location of each pen and a predetermined range for the location of each pen or areas touched or approached by one or more external conductive objects other than the pen in the predetermined range;
- providing a flag corresponding to the location of each pen, and each flag corresponding to the predetermined range of the location of the corresponding pen;
- setting the flag to a true value when the location of the corresponding pen is detected;
- setting the flag to a false value only if the corresponding pen is not detected over a predetermined period of time;
- and
- providing the location of each pen and the location of each external conductive object in the predetermined range corresponding to each flag being set to the true value.
4 more elements
A detection device for a touch screen, comprising:
- the touch screen for detecting signals for approaches or touches of external conductive objects thereon;
- a controller for determining whether each external conductive object is a pen based on the signals of the touch screen;
- and
- a memory for storing a flag corresponding to each pen, each flag being set to a true value when the existence of the corresponding pen is detected by the controller, and the flag being set to a false value only if the existence of the corresponding pen is not detected by the controller over a predetermined period of time,
- wherein only the location of each pen is provided by the controller when at least one flag corresponding to a pen is set to the true value.
2 more elements
A detection method for a touch screen, comprising:
- providing signals for approaches or touches of external conductive objects on a touch screen;
- determining whether each external conductive object is a pen based on the signals of the touch screen;
- providing a flag corresponding to each pen;
- setting the flag to a true value when the corresponding pen is detected;
- setting the flag to a false value only if the corresponding pen is not detected over a predetermined period of time;
- and
- providing only the location of each pen when at least one flag corresponding to a pen is set to the true value.
4 more elements
Dependencies are inferred from the claim text.