Waltop International Corporation

Wacom Co., Ltd.

A-Li Wong

Ying Hwa Tang

Chia-Jui Yeh

Chih-Jen Li

Chien-Chia Lien

A capacitive stylus with a power saving apparatus is disclosed. The capacitive stylus uses a controller to output signals to control a power circuit to regulate or convert a voltage from a power source to different working voltages for the controller so as to save electrical power of the capacitive stylus.

Capacitive stylus with power saving apparatus

A capacitive stylus, as an inputting device of a touch sensitive device, comprises a control circuit for emitting signals to the touch sensitive device, a power for providing electricity to the control circuit, two charging rings electrically connecting to the power, and a first magnetic member having a first magnetic pole and a magnetic second pole. The touch sensitive device comprises a recess for placing the capacitive stylus, two charging pads arranged within the recess for connecting with the two charging rings, a charging circuit for charging the power of the capacitive stylus via the two charging pads, and a second magnetic member having a first magnetic pole and a second magnetic pole. The first magnetic member and the second magnetic member assure the charging operation can be correctly proceeded.

Magnetic attractive capacitive stylus

A capacitive stylus, as an inputting device of a touch sensitive device, comprises a pen and a detachable eraser. The pen comprises a tip for writing on a screen of the touch sensitive device, a control circuit for emitting signals to the touch sensitive device, and a battery for providing electricity to the control circuit. The eraser includes an erasing circuit and a first end to combine with the pen, so that the erasing circuit electrically connects with the control circuit. The eraser includes a second end that is compressible, so that the control circuit can emit an erasing signal to the touch sensitive device.

Capacitive stylus with eraser

An electromagnetic pressure-sensitive pointer is disclosed. The electromagnetic pointer comprises a pen core and an oscillating circuit. The pointer core has a pointer tip. The oscillating circuit comprises a plurality of conductive terminals and a conductor. A capacitance of the oscillating circuit is increased through the contact between the conductive terminals and the conductor as a force is applied upon the pointer tip. When pointer's tip is been pressed, the pointer's frequency will have an obvious transition while its pressure-sensitivity is maintained.

Pressure-sensitive electromagnetic pointer and control method thereof

An electromagnetic pointer with a new type adjustment structure is disclosed. The electromagnetic pointer comprises at least one pen tube assembly, a tuning component at one end of the pen tube assembly, a pen tip, a core holder configured in the pen tube assembly with a surrounding coil, a ferrite core, an elastomer, a touch pin configured in the core holder and the pen tube assembly and a circuit board. The tuning component is configured to move axially along the pen tube assembly to perform tuning.

Electromagnetic pointer with new type adjustment structure

A handwriting input apparatus used with an electromagnetic pen is disclosed. The handwriting input apparatus comprises a controller, an electromagnetic antenna board, a signal processing circuit and a charging circuit. The signal processing circuit processes the electromagnetic signals received by the electromagnetic antenna board. The charging circuit used to charge the electromagnetic pen includes a first device which is used to output a first voltage to charge the electromagnetic pen after a voltage of the handwriting input apparatus being inputted. The charging circuit further includes a programmable voltage device connecting to the first device. The programmable voltage device is controlled by the controller to change the first voltage according to the detection of the first voltage by the controller.

Growing community of inventors

Hsinchu, Taiwan

A-Li Wong