Mediatek Corporation

Yi-An Li

Chia-Hsin Wu

Chih-Hung Lee

Jui-Lin Hsu

George Chien

Tsung-Ming Chen

Chih-Hsien Shen

A signal receiving apparatus includes: a first amplifying device, a second amplifying device, a feedback device, and a mixing device, wherein the mixing device is a passive mixer, the second amplifying device is arranged to provide an input impedance looking into an input terminal of the second amplifying device to fall within a first impedance range when the second amplifying device operates in a first frequency range, the second amplifying device is arranged to provide the input impedance looking into the input terminal of the second amplifying device to fall within a second impedance range when the second amplifying device operates in a second frequency range, the second frequency range is different from the first frequency range, and the second impedance range is different from the first impedance range.

Signal receiving apparatus and signal receiving method

A radio-frequency (RF) front-end supporting at least a first and second wireless communication bands includes a mixer arranged for mixing a received signal with a first local oscillation signal when the shared receiver front-end performs the reception operation according to the first wireless communication band, and for mixing the received signal with a second local oscillation signal when the shared receiver front-end performs the reception operation according to the second wireless communication band, wherein the first and second local oscillation signals are different in frequency.

Radio-frequency front-end supporting multiple wireless communication standards

A signal transceiver includes a first power amplifier coupled to a chip output port of a chip; an impedance transforming circuit; a switching circuit arranged to selectively couple the chip output port to a first port of the impedance transforming circuit; and a receiving amplifier coupled to a second port of the impedance transforming circuit.

Growing community of inventors

Taichung, Taiwan

Yi-An Li