Wrist watch type receiver of fish sonar

Details Wrist watch type receiver of fish sonar Wrist watch type receiver of fish sonar

1988-02-17

1990-02-13

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

367910, 368 14, G01S 1506

Patent

active

049012916

ABSTRACT:
Fish sonar signals, temperature signals, PH signals or speed signals of a boat which are emitted from a transmitter as RF signals are respectively received in a wrist watch type receiver, and are displayed on a display device attached to a case of the wrist watch type receiver, whereby each fisherman can see the state of the sea by putting on the wrist watch type receiver to his wrist.

REFERENCES:
patent: 4079413 (1978-03-01), Yamashita
patent: 4409827 (1983-10-01), Overs
patent: 4651309 (1987-03-01), Honda
patent: 4668100 (1987-05-01), Murakami et al.
patent: 4694694 (1987-09-01), Vlakancic et al.
patent: 4757481 (1988-07-01), Orr et al.
patent: 4809242 (1989-02-01), Oka et al.

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