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. 29, 2016
Filed:
Apr. 09, 2010
Yuji Kawasaki, Fukuoka, JP;
Ryosuke Kitago, Fukuoka, JP;
Hirotaka Fukutsuka, Fukuoka, JP;
Keiji Yamahai, Fukuoka, JP;
Yuji Kawasaki, Fukuoka, JP;
Ryosuke Kitago, Fukuoka, JP;
Hirotaka Fukutsuka, Fukuoka, JP;
Keiji Yamahai, Fukuoka, JP;
Abstract
A sound amplification apparatus () comprises one or more microphones () that convert collected sound into an audio signal and transmit the audio signal by radio and a sound receiving apparatus () that receives the audio signal transmitted from the microphone () and amplifies and outputs the sound based on the audio signal. The sound receiving apparatus () is configured to perform sound output control in an emergency mode upon receiving an emergency signal transmitted in response to operation of an emergency switch () of the microphone (). With this configuration, it is possible to perform appropriate sound control in a dangerous situation such as intrusion of a suspicious person.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile