Abstract: A pressure sensitive pen is provided. The pressure sensitive pen comprises a core body, an elastic element, a first magnetic body having one coil formed of at least a wire wound around, a second magnetic body, a sliding member, a hollow cylindrical body with an annular element formed therein and an inductance-capacitance type resonant circuit. The resonant circuit is electrically connected with the first magnetic body having the coil wound around. When a force is upward applied on the core body, the force is further applied on the sliding member through the core body such that the sliding member in conjunction with the second magnetic body move upward and make the elastic element deformed, and changing a predetermined distance between the first magnetic body and the second magnetic body, thereby changing an inductance generated by the coil, and the resonance frequency of the resonant circuit is thus changed.

Abstract: A multi-induction loop layout of an electromagnetic inductive system is disclosed. The multi-induction loop layout of the invention comprises a plurality of inductive loops, one terminal of each inductive loop connecting to a loop switch, and the other terminal connecting to the common node. Every logical inductive loop is a relative close inductive loop, the relative close inductive loop possessing a plurality of -type sections, forming a sawtooth-shaped region and corresponding to and closing each other to form a plurality of close-like regions. The form of which gradually approaches the multi-induction loop layout.

Abstract: The invention, an improved device and method for the pointer system of a digitizer tablet, is to repetitiously emit signals sequentially from a specific set of inductive loop when the position pointed by the wireless pointer device is located within a range formed by this specific set of inductive loop induced most intensively during a locally scanning process. After a transient energy storage of the wireless pointer device, corresponding resonant signals are emitted out and are received sequentially by several sets of inductive loop located on the digitizer tablet in the neighborhood of this specific set of inductive loop and, by these signals, the wireless pointer device's coordinate position on the digitizer tablet is calculated out relatively.

Abstract: A pressure sensitive pen is provided. The pressure sensitive pen comprises a core body, an elastic element, a first magnetic body having one coil formed of at least a wire wound around, a second magnetic body, a sliding member, a hollow cylindrical body with an annular element formed therein and an inductance-capacitance type resonant circuit. The resonant circuit is electrically connected with the first magnetic body having the coil wound around. When a force is upward applied on the core body, the force is further applied on the sliding member through the core body such that the sliding member in conjugation with the second magnetic body move upward and make the elastic element deformed, and changing a predetermined distance between the first magnetic body and the second magnetic body, thereby changing an inductance generated by the coil, and the resonance frequency of the resonant circuit is thus changed.

Abstract: A computer peripheral input system with two input types and a method of data communication for the same is provided. The computer peripheral input system comprises a first input module, a second input module and control means having a communication interface installed therein. The first input module is used for inputting at least a first input data and generating a first input signal corresponding thereto. The second input module is used for inputting at least a second input data and generating a second input signal corresponding thereto. Control means reads and processes the first and second input signals, and then stores a first and second information respectively corresponding thereto. The first information represents the first input data. The second information represents the second input data. The communication interface sends the first and second information stored in control means by a polling method.