The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 02, 2021
Filed:
Dec. 22, 2017
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Mayu Nishikawa, Osaka, JP;
Keiichi Mori, Osaka, JP;
NUVOTON TECHNOLOGY CORPORATION JAPAN, Kyoto, JP;
Abstract
A distance measuring device includes: a light emitter which emits light from a light source to a target object; a light receiver which receives reflected light in a group of pixels two-dimensionally disposed, the reflection light being generated through reflection of the light emitted from the light emitter on the target object; a synthesizer which generates a synthesized signal by synthesizing pixel signals read from pixels exposed at different exposure intervals to generate a synthesized signal; and a distance arithmetic operator which calculates a value of distance to the target object based on the synthesized signal and the difference in time between emission and reception of the light. The synthesizer generates the synthesized signal by the first synthesis processing when a pixel signal of a pixel exposed at a first exposure interval has a signal level higher than a predetermined saturation level, and generates the synthesized signal by second synthesis processing the pixel signal of the pixel exposed at the first exposure interval has a signal level lower than the predetermined saturation level.