Electronics and Telecommunications Research Institute

Korea Advanced Institute of Science and Technology

Xiaohua Yu

Ji-Eun Kim

Cheol Sig Pyo

Ji Eun Kim

Cheol-Sig Pyo

Nae-Soo Kim

Sang-Gug Lee

Nae Soo Kim

Sang Gug Lee

Hoyong Kang

Ho-Yong Kang

Seok-Kyun Han

Dae-Young Yoon

Dae Young Yoon

Trung-Kien Nguyen

Trung Kien Nguyen

Seok Kyun Han

Provided is a low-power wake-up receiver that is sensitive to electric waves, by which power consumed by a radio frequency (RF) transceiver of a sensor node in a ubiquitous sensor network (USN) is minimized. A wake-up receiver waking up a main transceiver includes a duty cycle signal generation unit controlling a duty cycle of a duty cycle signal; a burst signal detection unit receiving an input signal including a burst signal and a data signal based on the duty cycle signal, amplifying the input signal, and, if the amplified input signal is the burst signal, outputting a control signal; and a data signal detection unit re-amplifying the amplified input signal based on the control signal, and, if the re-amplified input signal is the data signal, outputting a wake-up signal. Power supplied to the duty cycle signal generation unit is interrupted based on the control signal and power is re-supplied to the duty cycle signal generation unit based on the wake-up signal.

Wake-up receiver and wake-up method using duty cycling and power off technique

A low power super regenerative receiver and a method of reducing the power consumption of the low power super regenerative receiver are provided. The super regenerative receiver includes: an oscillator having a start-up time period starting oscillation that varies according to an existence of an input signal; and a power controller supplying power within the start-up time period of the oscillator.

Super regenerative receiver and method of saving power of the same

Growing community of inventors

Daejeon, South Korea

Xiaohua Yu