Abstract: The invention relates to a system for development interface and a data transmission method for development interface. The system includes a development board and a host computer. The development board is electrically connected to the host computer by a debug interface. The data format transmitted by host computer includes a header field, an address field and a data field. When performing mass data transfer, a specific command is set in the header field to lift the restriction for the length of the data field. When the development board receives the specific command, a serial data transmission mode is switched to receive all data of the data field.

Abstract: A touch device with light frequency sensor to sense the relative position of an object to be detected includes a work area, a light source, at least two light frequency sensors, and a position computation module. The light source is arranged toward the work area for providing light with predetermined frequency. The two light frequency sensors are arranged for respectively detecting the light frequency signals entered into the lens and the optical filter. The position computation module is linked with the two light frequency sensors for signal connection and detects characteristic data by means of trigonometry to determine the position of the object to be detected. As the light frequency sensor could simple detects the signal, the position computing module with a relative low-order computing is capable of processing the signal. That means the high-order processor of the prior art is unnecessary to be used to processing the acquired image.

Abstract: A sensing structure and method for a touch spot of a resistive touch panel, includes a first conducting layer, with a frame of the first conducting layer defined as an X-axis, a plurality of parallel first resistance detecting lines designed towards Y-axis; and a second conducting layer coincident with the first conductive layer, and a plurality of second resistance detecting lines with certain slope angles on the second conducting layer. The plural second resistance detecting lines intersect plural first resistance detecting lines to form interlacing and fixed blocks. In response to a screen touch, the position of the Y-axis of the second resistance detecting line is used in a triangulation calculation.

Abstract: A device and method of identifying the position of a determinant via combining optical image with a single axis of touch panel includes sensing identification of any single axis via only one image sensor module provided at a side or outside the work area for retrieving images and combining with the identification device of the touch panel in the work area, then, calculating the relative position of the determinant through the triangulating relationship and the formula x×tan ?=y in response to retrieved images and identified information from the touch panel.