Marcum Enterprises Incorporated

Marcum Technologies, Inc.

Other

Nature Vision, Inc.

Duane E Cummings

Raphael J Marzean

Gregory R Johnson

Paul W Thorne

Paul Walbridge Thorne, Iii

A light pipe device for fish sonar that displays information such as depth and density of detected objects. The device includes a motor with a rotary shaft, a shaft position sensor, a light conducting pipe fixed to the rotary shaft opposite the luminous tip of the pipe, a light source, and a front panel. Using this device, when a controller detects an object the controller causes the light source to turn on and off as the luminous tip revolves beneath the front panel. Light is transferred to the tip and front panel to indicate information regarding the object.

Light pipe display for sonar

Underwater camera

The present invention separates noise from actual return echoes of ultrasonic sound waves generated by the transducer of a sonar type fish finder by comparing the timing of generated ultrasonic pulses and received signals and disregarding signals when such timing does not match.

Method for distinguishing return echoes from noise

A flasher-type fish finder is provided with a zoom feature that allows the user to select an area of interest within a body of water and then display representations of the objects located within that area of interest.

Flasher-type fish finder with zoom feature

Dash mounted sonar depth indicator

Gimbal mounted sonar depth indicator

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.

Solid state depth locator having liquid crystal display

Growing community of inventors

Monticello, MN, United States of America

Duane E Cummings