Patent ID: 6768701
Filing Date: 2004-07-27
Classification: G01S

Abstract:
A flasher type depth locator that provides a real time display of targets in at least one selectable area of interest of a body of water, said flasher-type depth locator comprising:a. a transducer that transmits sound waves into a body of water, detects the return of echo signals from targets in the path of said sound waves, and provides first electrical signals in accordance with the detected echo signals; b. an oscillator circuit coupled to said transducer; c. a receiver coupled to said transducer for amplifying said first electrical signals; d. an analog-to-digital converter for converting said first electrical signals into digital signals; e. a buffer for storing said digital signals; f. memory coupled to said buffer; g. a flasher-type display coupled to said memory, said flasher-type display having a sensor for detecting the zero position; h. a controller that cooperates with said oscillator to control the transmission of sound waves by said transducer and controls the read out of digital signals from said buffer to said memory and from said memory to said flasher-type display; i. an input device coupled to the controller to define at least one selectable area of interest of a body of water by defining the depth of said selectable area of interest and the size of said selectable area of interest; and j. wherein said controller controls said buffer, said memory and said flasher-type display to display based upon signals received from said sensor the depth of targets detected in said at least one selectable area of interest.