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. 17, 1995
Filed:
Oct. 15, 1993
Duane E Cummings, Monticello, MN (US);
Marcum Enterprises Incorporated, Monticello, MN (US);
Abstract
A solid state depth locator comprises an LCD display having a plurality of LCD segments for providing a real time output indicative of the depth of targets in a body of water. A drive circuit drives each segment of the plurality of LCD segments. A transducer, transmitter and receiver operate together to provide a real time data signal to the drive circuit for driving each segment of the plurality of LCD segments, the real time data signal having a time period and being representative of the presence of targets in the body of water. A clock provides a clock signal to the drive circuit for clocking the real time data signal serially into the LCD drivers. The clock signal has a plurality of clock pulses within the time period of the real time data signal corresponding to the number of LCD segments. A grey scale circuit is provided for varying the intensity of each segment of the LCD display in relation to the strength of the real time data signal.