Abstract: A wireless presentation system includes a first wireless input element, a second wireless input element and a wireless receiving and processing host. A pairing method for use in the wireless presentation system includes the following steps. The wireless receiving and processing host generates a first identification code, and if the first wireless input element is present, issues the first identification code to the first wireless input element for storage, so that a pairing relation therebetween is established by the first identification code. The wireless receiving and processing host automatically generates a second identification code after the first identification code is issued, and if the second wireless input element is present, issues the second identification code to the second wireless input element for storage, so that the pairing relation therebetween is established by the second identification code.

Abstract: A display tilt-adjusting method is used between a pointing device and a display device. Firstly, first moving information is acquired in response to a movement of the pointing device. Then, error information is acquired according to the first moving information. According to the error information, the first moving information is transformed into second moving information. Afterwards, a moving path corresponding to the movement of the pointing device is shown on the display device according to the second moving information.

Abstract: A pointing device cooperates with a display device which shows a cursor moving in response to a movement of the pointing device. The pointing device includes a casing, a sensing unit and a modulation structure. The sensing unit senses a first movement of the pointing device to acquire first movement information when the sensing unit is arranged in a first position. The modulation structure connected with the sensing unit adjusts the sensing unit from the first position to a second position. Then, the sensing unit senses the first movement of the pointing device to acquire second movement information when the sensing unit is arranged in the second position. The moving path of the cursor is shown on the display device according to the first movement information or the second movement information.

Abstract: A mouse pen has an aspheric lens and a sensor disposed in a housing with an opening, wherein the aspheric lens is interposed between the sensor and the opening. The aspheric lens is tilted. The tilting angle and the position of the aspheric lens define the best resolution point for the sensor, which is different from the focus of the aspheric lens.

Abstract: The present invention discloses a method to define a drafting range based on a curve with a plurality of points drawn by a user. A writing character is shown in a display based on the drafting range. The method includes the following steps. The first step is to gather coordinate positions of points. Then, these coordinate positions are compared to each other to get a maximum coordinate position and a minimum coordinate position. A drafting range is generated based on the maximum coordinate position and the minimum coordinate position. Next, the drafting range is corresponded to a display range of a display to define a ratio of the drafting range to the display range. Finally, the writing character is adjusted and displays in the display based on the ratio.

Abstract: A cursor control device includes a pen-like body, a motion-detecting element, a microcontroller and a button element. The motion-detecting element is disposed at a first side of the pen-like body for generating a coordinate change signal in response to a motion of a first finger of the user. The microcontroller is disposed within the pen-like body and communicated with the motion-detecting element and the computer system. According to the coordinate change signal, the microcontroller issues a cursor control signal to the computer system. The button element is disposed at a second side of the pen-like body and communicated with the microcontroller for triggering the microcontroller to generate an object locking control signal in response to a depressing action of a second finger of the user. The object pointed by the cursor is locked according to the object locking control signal and moved according to the cursor control signal.

Abstract: A wireless control device and a multi-cursor control method for use with a computer system are provided. The application program of the computer system is executed to generate at least a first pointer and a second pointer. The wireless control device includes a first pointer controller, a second pointer controller and a wireless transceiver. The multi-cursor control method includes steps of issuing a first wireless control signal containing a first identification code in response to manipulation of a first user, issuing a second wireless control signal containing a second identification code in response to manipulation of a second user, receiving and transmitting the first wireless control signal and the second wireless control signal to the computer system, and controlling corresponding shifts of the first pointer and the second pointer defined in the application program according to the first identification code and the second identification code, respectively.

Abstract: A wireless presentation system includes a first wireless input element, a second wireless input element and a wireless receiving and processing host. A pairing method for use in the wireless presentation system includes the following steps. The wireless receiving and processing host generates a first identification code, and if the first wireless input element is present, issues the first identification code to the first wireless input element for storage, so that a pairing relation therebetween is established by the first identification code. The wireless receiving and processing host automatically generates a second identification code after the first identification code is issued, and if the second wireless input element is present, issues the second identification code to the second wireless input element for storage, so that the pairing relation therebetween is established by the second identification code.