Title:
PHOTOELECTRIC SENSOR AND LIGHT-RECEIVING UNIT
Document Type and Number:
WIPO Patent Application WO/2024/062795
Kind Code:
A1
Abstract:
This photoelectric sensor comprises a light-emitting unit which emits a pulse beam group at a predetermined period, and a light-receiving unit which receives the pulse beam group, wherein the light-receiving unit comprises: a light-receiving element which receives a pulse beam group and outputs a light-receiving signal based on the received beams; a threshold calculation circuit which calculates a threshold on the basis of the signal level of a plurality of peak signals included in the received signal and corresponding to the plurality of pulse beams; a filter circuit which performs predetermined filtering on the light-receiving signal; and a comparison circuit which compares, at a predetermined period, the signal level of the light-receiving signal output from the filter circuit and the threshold calculated by the threshold calculation circuit.
Inventors:
KATO IPPEI
KIMURA FUMITAKA
UCHIDA YUTA
KIMURA FUMITAKA
UCHIDA YUTA
Application Number:
PCT/JP2023/029282
Publication Date:
March 28, 2024
Filing Date:
August 10, 2023
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H03K17/78; G01V8/12
Foreign References:
| JP2012503402A | 2012-02-02 | |||
| US20110127415A1 | 2011-06-02 | |||
| JPH06152364A | 1994-05-31 |
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
Download PDF:
Previous Patent: ACCESS MANAGEMENT SYSTEM
Next Patent: SEMICONDUCTOR APPARATUS AND METHOD OF MANUFACTURING SEMICONDUCTOR APPARATUS
Next Patent: SEMICONDUCTOR APPARATUS AND METHOD OF MANUFACTURING SEMICONDUCTOR APPARATUS