Samsung Electronics Co., Ltd.

Yonsei University

Hyunwoong Lim

Sanghoon Lee

Kyungtae Kim

Subhojit Chakladar

Jaegeun Lee

Yuna Kim

Junhui Kim

Taejin Lee

Eunhye Shin

Taewan Kim

Michael Choi

Taewook Kim

Hyungyu Kim

Seongsoo Park

Jooik Chung

A frequency multiplier includes a capacitor circuit having a plurality of capacitors therein, and is responsive to a differential input signal applied to an inverting input node and a non-inverting input node thereof. A frequency multiplication circuit (FMC) is provided, which has a plurality of transistors therein. The FMC is configured to receive components of the differential input signal passing through the plurality of capacitors, and multiply a frequency of the components of the differential input signal. A plurality of inductor loads are provided, which are connected to an inverting output node and a non-inverting output node of the FMC, and are configured to convert a current signal generated by the FMC into a voltage signal.

Frequency multiplier circuits having cross-coupled capacitors therein which support frequency multiplication

Provided is an electronic device that includes a first processor for receiving an audio signal, performing first voice recognition on the audio signal, and transferring a driving signal to a second processor based on a result of the first voice recognition. The second processor performs second voice recognition based on a voice signal by the first voice recognition or the audio signal, in response to the driving signal.

Electronic device and method of operating voice recognition function

Growing community of inventors

Gyeonggi-do, South Korea

Hyunwoong Lim