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:
Oct. 28, 2025
Filed:
Jul. 08, 2020
Nec Corporation, Tokyo, JP;
Junichi Funada, Tokyo, JP;
Hisashi Mizumoto, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A conversation surveillance apparatus () detects a plurality of persons (a human group ()) who have a conversation within a predetermined distance in a surveillance area () from video data (). The conversation surveillance apparatus () determines the duration of the conversation held by the human group () and puts the determined duration of the conversation into a storage device in association with identification information of the human group (). The conversation surveillance apparatus () determines whether the total duration of the conversations held by the human group () within a predetermined period of time is equal to or larger than a threshold using the information stored in the storage device.