Receiving system of telemetering signal

Details Receiving system of telemetering signal Receiving system of telemetering signal

1976-07-22

1978-05-23

Farley, Richard A.

Communications: electrical

Selective

Intelligence comparison for controlling

340177CA, 340206, H04B 1100, G08C 1926

Patent

active

040913570

ABSTRACT:
In a telemeter system using a measuring probe for radiating a sound pulse signal the pulse spacing of which corresponds to information to be measured such as temperature or salinity of various depths in the ocean water, in order to prevent the echo noise signal there is provided an improved receiving system which comprises a one-bit delay circuit, a pair of integrating circuits, a pulse generator and a gate. One of the integrating circuits is controlled by the signal as received and the other is controlled by a one-bit delayed signal derived from the received signal. The pulse generator generates a pulse signal having a predetermined time duration at a predetermined level of the output from the integrating circuit, and that pulse drives the gate, so as to eliminate the echo unexpectedly received during the pulse spacing.

REFERENCES:
patent: 3366881 (1968-01-01), Malone et al.
patent: 3742472 (1973-06-01), Bryant et al.
patent: 3878502 (1975-04-01), Rochelle

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