Method of transferring detailed data by tablet driver
AssigneeWacom Co., Ltd.
InventorTakeshi Sasaki
Life of this patent
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Abstract
When a tablet driver is used, an application program is capable of utilizing detailed data transmitted from a tablet. The application program issues a request that the tablet driver transfer detailed data only when it requires the detailed data, this transfer being performed without increasing ordinary system load.
Claims7
A method of transferring detailed data from a tablet to an application program via a tablet driver, the tablet driver including a buffer for storing detailed data derived from the tablet, the method comprising sequentially storing the tablet data in the buffer, supplying a request for detailed data from the application program to the tablet driver when the application program requires the detailed data, supplying the detailed data to the application program from the buffer in response to the request, otherwise eliminating some data points of the coordinate data having the high sampling rate to provide remaining data having a reduced sampling rate, and supplying only the remaining data having the reduced sampling rate to a window system.
A method of transferring detailed data from a tablet to an application program via a tablet driver such that data derived from the tablet which are not needed by the application program are not coupled to the application program by the tablet driver, the method being used when a mouse emulation tablet driver of a window system is created, the method comprising:
- storing coordinate data derived from the tablet in a buffer of the tablet driver, the coordinate data having a high sampling rate,
- eliminating some data points of the coordinate data having the high sampling rate to provide remaining data having a reduced sampling rate,
- supplying only the remaining data having the reduced sampling rate to the window system, the window system moving a pointer on a display in response to the remaining data having the reduced sampling rate and informing the application program of coordinate changes of an implement relative to the tablet, and
- transferring the coordinate data having the high sampling rate from the buffer to the application program in response to the application program issuing a request to the tablet driver to transfer the coordinate data having the high sampling rate.
Dependencies are inferred from the claim text.