Cheng Uei Precision Industry Co., Ltd.

Ememory Technology Inc.

Yu Yuan Wu

Kai Shih

Hsin Tsung Wu

Jia Hung Su

Wen Chun Wang

Chih-Yang Huang

Pai Hsien Su

Wei-Chiang Ong

Kuo Shing Wang

Pei Fen Wu

Hung Jen Chen

Lan Yung Hsiao

Jhao Huei Yu

Wen Chieh Yang

Ching Chi Lin

A voltage driver includes a voltage divider, a first transistor and a second transistor. The voltage divider is connected with a first voltage source and a second voltage source, and generates a first bias voltage. A drain terminal of the first transistor is connected with a third voltage source. A gate terminal of the first transistor is connected with the voltage divider to receive the first bias voltage. A drain terminal of the second transistor is connected with a source terminal of the first transistor. A gate terminal of the second transistor receives a second bias voltage. A source terminal of the second transistor is connected with a fourth voltage source. The first transistor and the second transistor are of the same conductivity type and match each other. The source terminal of the first transistor generates an output voltage.

Voltage driver for memory

The present invention relates to a document feeding structure including a feeding path; a scanning unit, said scanning unit being arranged on one side of said feeding path to scan documents passing through said feeding path; a transmitting roller, said transmitting roller arranged opposite to said scanning unit and covering the whole feeding path; and a pressing plate, said pressing plate including a fixed end, a free end disposed in said feeding path to contact with said transmitting roller and an extending portion connecting said free end and said fixed end, wherein said pressing plate covering the whole feeding path.

Document feeding structure

A test device is provided. An output terminal of an operational amplifier is coupled to a device under test. A current replication circuit copies a current flowing through a charging circuit and a discharge circuit according to voltages of control terminals of the charging circuit and the discharge circuit in the operational amplifier and outputs a test result signal.

Test device

Multi-band antenna

Double-band antenna

Antenna

An antenna structure includes an antenna portion having an antenna defining a feeding point and a grounding point, and a grounding portion electrically connecting with the grounding point of the antenna. The grounding portion defines a basic board. The basic board is bent upwardly from edges thereof to form a first extending portion. The first extending portion is bent inwardly from a top edge thereof to form a second extending portion approximately paralleling with the basic board. Through the first and second extending portions, the area of the grounding portion is extended. And the electric field is widely distributed all over the whole grounding portion including the basic board and the first and second extending portions to decrease the SAR of the antenna.

Antenna structure of mobile phone

Growing community of inventors

Tu-Cheng, Taiwan

Yu Yuan Wu