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. 21, 2014
Filed:
Feb. 04, 2014
Timothy B. Straw, Narragansett, RI (US);
Michael J. O'bara, North Kingstown, RI (US);
Stephen A. Caldwell, Warren, RI (US);
Timothy B. Straw, Narragansett, RI (US);
Michael J. O'Bara, North Kingstown, RI (US);
Stephen A. Caldwell, Warren, RI (US);
Abstract
A sonar system is provided with the system having comparatively reduced power consumption, data bandwidth and data storage requirements. A sensor array of the system is configured to a sleep mode, low-resolution mode and high-resolution mode. In the sleep mode, all sonar sensors are configured in the mode and no acoustic signals are detected or processed. In the low-resolution mode, a limited number of sonar sensors are powered and acoustic signals received by the sensors are processed with reduced bandwidth and dynamic range, and then stored on a data storage device. In the high-resolution mode, the acoustic signals detected by the sonar sensors are processed with full signal bandwidth and dynamic range and then stored on the data storage device. A 10 bit mu-Law encoding scheme is used to reduce the amplitude scale of measurement or dynamic range of the digitized acoustic signals.