Echo sounding device with cathode ray tube display

Details Echo sounding device with cathode ray tube display Echo sounding device with cathode ray tube display

1977-06-15

1978-09-19

Farley, Richard A.

Communications: electrical

Selective

Monitoring in addition to control

G01S 968, G01S 970, G01S 762

Patent

active

041157524

ABSTRACT:
An echo sounding device for searching and exploring the depth of a body of water is provided with a cathode ray tube (CRT) display showing the echo returns. A memory device is provided to store the electrical signal levels of the echo returns while new signal returns are being received to enable presentation of a bar-graph type of display on the CRT.

REFERENCES:
patent: 3380293 (1968-04-01), Murphy
patent: 3388377 (1968-06-01), Folsom et al.
patent: 3790925 (1974-02-01), Ahrens
patent: 3914730 (1975-10-01), Jones et al.

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