US 2019/0377080 A1Published application

Vital sign sensor capable of resisting clutter

AssigneeNational Sun Yat-Sen University

InventorsFu-Kang Wang, Tzyy-Sheng Horng, Lih-Tyng Hwang, Chung-Yi Hsu

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Abstract

In a vital sign sensor of the present invention, an antenna assembly radiates an oscillation signal generated by a SIL oscillator to an object in a form of a wireless signal and receives a reflected signal from the object, and the reflected signal can have the SIL oscillator injection-locked. The wireless signal radiated from the antenna assembly is transmitted to a demodulator for demodulation such that the vital signs of the object can be obtained. Additionally, an isolator of the antenna assembly is provided to prevent the SIL oscillator from receiving a clutter reflected from the demodulator and an environment where the demodulator is placed. As a result, the clutter can't influence the vital sign detection of the object.

Claims10

Dependent claims

A vital sign sensor capable of resisting clutter comprising:

a self-injection-locked (SIL) oscillator configured to output a oscillation signal;
an antenna assembly configured to electrically connect with the SIL oscillator, receive the oscillation signal and radiate a wireless signal to an object, and the antenna assembly is configured to receive a reflected signal reflected from the object and transmit the reflected signal to the SIL oscillator to allow the SIL oscillator to operate in a self-injection locked state;
and
a demodulator configured to receive and demodulate the wireless signal radiated from the antenna assembly to obtain a vital signal, wherein a clutter is reflected from the demodulator and an environment where the demodulator is placed, and an isolator of the antenna assembly is configured to prevent the clutter from being transmitted to the SIL oscillator.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 16/106,285Filed 21 Aug 2018
Priority: TW 1071196767 Jun 2018
Published: 12 Dec 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

G01S 7/03
Of systems according to group G01S13/00: details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
G01S 13/449
Monopulse radar, i.e. simultaneous lobing: combined with MTI or Doppler processing circuits
G01S 7/024
Of systems according to group G01S13/00: using polarisation effects
G01S 7/354
Receivers: extracting wanted echo-signals

Family

US 10,816,656 B2Related patent
US 2019/0377080 A1This patent

From the US filing history. Foreign family members aren’t listed.

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