Title:
FULLY-ISOLATED LIGHT PATH STRUCTURE, AND SEAT AND TOILET LID USING FULLY-ISOLATED LIGHT PATH STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2021/213149
Kind Code:
A1
Abstract:
Disclosed are a fully-isolated light path structure, and a seat and a toilet lid using the fully-isolated light path structure. In the fully-isolated light path structure, a light blocking plate is used for blocking the propagation of light between a light emitting apparatus and a light receiving apparatus; and the light emitting apparatus and the light receiving apparatus respectively independently emit light and receive light, thereby avoiding the interference of light emitted by the light emitting apparatus in the light receiving apparatus. In the toilet lid using the fully-isolated light path structure, the seat comprises a human body signal extraction unit, wherein the fully-isolated light path structure is mounted in the human body signal extraction unit, thereby avoiding the interference of the light emitted by the light emitting apparatus in the light receiving apparatus, and improving the quality of PPG signals acquired from a part with thick fat. By means of the toilet lid on which a weak electrical signal collection circuit is mounted, when people use the toilet, electrocardiosignals of the legs of a human body can be collected, and even in the dry winter, the electrocardiosignals of the human body can still be effectively extracted.
More Like This:
| WO/2014/059754 | TOILET SEAT HAVING HUMAN-DRIVEN FLUSH FUNCTION |
| WO/2017/065814 | AUTOMATICALLY-LIFTABLE TOILET SEAT |
Inventors:
WANG PEI (CN)
LUO JINHE (CN)
LUO JINHE (CN)
Application Number:
PCT/CN2021/083997
Publication Date:
October 28, 2021
Filing Date:
March 30, 2021
Export Citation:
Assignee:
GUANGZHOU EAPHONETECH CO LTD (CN)
GUANGZHOU XINXIANGSUI TECH CO LTD (CN)
GUANGZHOU XINXIANGSUI TECH CO LTD (CN)
International Classes:
A47K13/24; A61B5/00; A61B5/1455
Foreign References:
| CN111358328A | 2020-07-03 | |||
| CN111419231A | 2020-07-17 | |||
| CN106419712A | 2017-02-22 | |||
| CN110693455A | 2020-01-17 | |||
| CN209315711U | 2019-08-30 | |||
| JP2002315690A | 2002-10-29 |
Attorney, Agent or Firm:
BEIJING UNIPAT INTELLECTUAL PROPERTY LAW FIRM (CN)
Download PDF:
Previous Patent: REFRIGERATOR
Next Patent: WEAK CURRENT SIGNAL ACQUISITION CIRCUIT, AND SEAT AND SEAT COVER HAVING SAME
Next Patent: WEAK CURRENT SIGNAL ACQUISITION CIRCUIT, AND SEAT AND SEAT COVER HAVING SAME