Title:
WAKE-UP RECEIVER
Document Type and Number:
WIPO Patent Application WO/2023/184521
Kind Code:
A1
Abstract:
The present disclosure provides a wake-up receiver. The wake-up receiver comprises: a radio frequency filter configured to filter a mixed signal comprising an input signal and a background noise signal to obtain a first filtered signal, wherein the first filtered signal comprises the input signal and a part of the background noise signal, and the input signal is a product of a modulation signal and a radio frequency carrier; a self-mixer connected to the radio frequency filter and configured to allow the first filtered signal to be self-mixed to obtain a frequency-mixed signal; an intermediate frequency filter connected to the self-mixer and configured to filter the frequency-mixed signal to remove a noise self-mixed signal in the frequency-mixed signal, so as to obtain a second filtered signal, wherein the second filtered signal comprises a modulation signal; and a wake-up signal generation module connected to the intermediate frequency filter and configured to obtain a wake-up signal according to the modulation signal.
Inventors:
ZUO CHENGJIE (CN)
LIU JINGSONG (CN)
LIN FUHONG (CN)
LONG JIALIN (CN)
WU FENG (CN)
LIU JINGSONG (CN)
LIN FUHONG (CN)
LONG JIALIN (CN)
WU FENG (CN)
Application Number:
PCT/CN2022/084984
Publication Date:
October 05, 2023
Filing Date:
April 02, 2022
Export Citation:
Assignee:
UNIV SCIENCE & TECHNOLOGY CHINA (CN)
International Classes:
H04B1/10; H04B1/16
Foreign References:
| CN113114147A | 2021-07-13 | |||
| CN110351816A | 2019-10-18 | |||
| US20150071151A1 | 2015-03-12 | |||
| US20070082647A1 | 2007-04-12 |
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
Download PDF: