Precision fathometer interface adaptor

Details Precision fathometer interface adaptor Precision fathometer interface adaptor

1983-04-06

1985-10-22

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

73170A, H04Q 139

Patent

active

045491771

ABSTRACT:
A precision fathometer interface adaptor for interfacing a shallow and a p water sonar with a computer operated survey system for a 20-line to 16-line data selector is coupled to a multiplexed 16-line data bus. Two sources of bathymertic data are input to the data bus. For 5-bit BCD the four MSD or LSD are selected for input. The output is selected by three operational modes: Select Source 1, Select Source 2 or Automatic. The Automatic mode selects the bathymetric data output for the computer according to the water depth. An externally activated timer generates time/event markers for external devices.

REFERENCES:
patent: 2437416 (1941-11-01), Bludworth
patent: 2759168 (1954-03-01), Fryklund
patent: 3307144 (1965-01-01), Epstein et al.
patent: 3594554 (1969-06-01), Pederson
patent: 3818523 (1971-10-01), Stillman, Jr.
patent: 3837224 (1973-07-01), Reams, Jr.
patent: 4163216 (1979-07-01), Arpino
patent: 4425643 (1984-01-01), Chapman et al.
patent: 4481514 (1984-11-01), Beukers et al.

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