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:
Sep. 29, 2020
Filed:
Sep. 14, 2017
Japan Agency for Marine-earth Science and Technology, Yokosuka-shi, Kanagawa, JP;
Hiroshi Ochi, Yokosuka, JP;
Takuya Shimura, Yokosuka, JP;
Yoshitaka Watanabe, Yokosuka, JP;
Mitsuyasu Deguchi, Yokosuka, JP;
JAPAN AGENCY FOR MARINE-EARTH SCIENCE AND TECHNOLOGY, Yokosuka-Shi, JP;
Abstract
An acoustic communication system includes a first acoustic communication apparatus and a second acoustic communication apparatus. The first acoustic communication apparatus transmits a first acoustic wave to the second acoustic communication apparatus. The second acoustic communication apparatus transmits, as a response, a second acoustic wave to the first acoustic communication apparatus continuously in constant cycles until a next first acoustic wave is received. Each cycle includes a transmission period and a pause period. The first acoustic communication apparatus, which has received the second acoustic wave, determines a transmission timing that allows the next first acoustic wave to be received by the second acoustic communication apparatus based on a time period required from transmission of the first acoustic wave till reception of the second acoustic wave and the length of the transmission period, and transmits the next first acoustic wave to the second acoustic communication apparatus at the determined transmission timing.