Primax Electronics Ltd.

Tsung-Wen Hsueh

Chun-Che Wu

Yi-Guang Chen

Chun-Nan Su

Sheng-An Tsai

Shi-Jie Zhang

Li-Kuei Cheng

Chien-Pang Chien

Chou-Liang Liu

Kai-Wen Lee

Chen-Wei Chan

Yu Yen Shih

Chun-Ying Chiang

Heng-Tseng Liao

A roller module includes a wheel disc, a magnetic conductor and an electro-permanent magnet assembly. The wheel disc is rotatable along a rotation axis line. The magnetic conductor is coaxially arranged and synchronously rotated with the wheel disc. The magnetic conductor includes a hub and plural spokes. The plural spokes are radially extended from the hub. The magnetic conductor is arranged between the wheel disc and the electro-permanent magnet assembly. When the electro-permanent magnet assembly is operated in the first operating status, the electro-permanent magnet assembly provides a first magnetic attraction force to at least one spoke in the axial direction. When the electro-permanent magnet assembly is operated in the second operating status, the electro-permanent magnet assembly provides a second magnetic attraction force to at least one spoke in the axial direction. The first magnetic attraction force is greater than the second magnetic attraction force.

Roller module

A keyboard device includes a membrane circuit board and a support plate. The membrane circuit board has a plurality of key regions and a peripheral region surrounding the key regions. The membrane circuit board includes: a lower membrane layer; an upper membrane layer disposed over the lower membrane layer; and a sensing circuit pattern disposed over the upper membrane layer and in the peripheral region, in which the sensing circuit pattern includes a surrounding wire and at least one connecting wire, and the surrounding wire surrounds the key regions, and the at least one connecting wire is connected between two adjacent portions of the surrounding wire. The support plate is disposed beneath the membrane circuit board.

Keyboard device

A USB interface detection module includes a detection unit and an adapting device. The adapting device is electrically connected between a first electronic device and a second electronic device. According to the interface specification of the first electronic device, the voltage value of a configuration channel pin is changeable through the use of the GND_DRAIN pin and the switching action of a field-effect transistor switch. Consequently, the interface specification of the first electronic device is acquired by the second electronic device.

USB interface detection module

A USB adapter includes a first interface connector, a second interface connector, a third interface port and a detecting module. When both of the first interface connector and the second interface connector are plugged into a first electronic device, the USB adapter can acquire higher amount of electricity. Consequently, the sufficient electricity can be provided. Moreover, the detecting module detects a connection status of at least one of the first interface connector and the second interface connector. According to the detecting result, a single default function or plural default functions are enabled.

USB adapter

The present invention provides a mouse with an electromagnetic module, including: a mouse body, a scroll wheel and an electromagnetic module. The scroll wheel is mounted in the mouse body, and the scroll wheel is provided with a mounting area. The electromagnetic module is mounted in the mouse body. The electromagnetic module includes: a metal inner ratchet, a connecting piece, an electromagnet, and a control element. The metal inner ratchet is fastened in the mounting area. The connecting piece includes a connecting section and a free section. The connecting section is connected to the mouse body, and the free section passes through the mounting area. The electromagnet is mounted on the free section. The control element is electrically connected to the electromagnet. In this way, an effect of continuous-ratcheting is achieved.

Mouse with electromagnetic module

A charging control circuit includes a charging module, a switch element, a load detecting element, and an adjusting element. According to the power consumption of a chargeable battery of an electronic device, the load detecting element issues a load range signal. According to the load range signal, the adjusting element issues a control voltage to the switch element. According to the control voltage, the switch element is turned on, and the magnitude of a control current from the switch element is correspondingly adjusted. By the charging module, a charging current corresponding to the control current is provided to charge the chargeable battery. Consequently, the magnitude of the charging current is controlled according to the operating situation of the electronic device, and the charging speed is changed.

Charging control circuit

The present invention discloses a method for pairing a computer and wireless electronic devices including searching at least one wireless electronic device adjacent to a computer; recording a media access control (MAC) address of the wireless electronic device; pairing the computer and the wireless electronic device; and generating a pairing complete message. The present invention saves time of selecting the wireless electronic device from a candidate list and also provides a convenient and easy pairing method.

Growing community of inventors

Taipei, Taiwan

Tsung-Wen Hsueh