Process and device for the digitized transmission of signals

Details Process and device for the digitized transmission of signals Process and device for the digitized transmission of signals

1993-08-27

1995-11-07

Chin, Stephen

Pulse or digital communications

Pulse code modulation

375259, 375355, 375358, 341143, 3408554, 34087021, H04B 1404

Patent

active

054652707

ABSTRACT:
A device for simplifying transmission of analog signals received from sensors to a remote station in accordance with the invention includes at least one local electronic module including in combination a modulator for oversampling each analog signal and converting each oversampled analog signal into lower resolution digital words and a transmitter for transmitting the lower resolution words as a bit stream on at least one first transmission channel; at least one synchronization element producing a clock signal allowing synchronization of each modulator with the remote station; and at least one reception module in the remote station including a receiver for receiving the transmitted lower resolution words as a bit stream and a digital filter, coupled to the receiver, for converting each received bit stream received into digital words of a higher resolution (typically 16 or 24 bit words. The invention is useful for transmission of seismic data.

REFERENCES:
patent: 3350644 (1967-10-01), McNair
patent: 3370270 (1968-02-01), Cesareo
patent: 3873961 (1975-03-01), Lee et al.
patent: 4084069 (1978-04-01), Looschen
patent: 4158810 (1979-06-01), Leskovar
patent: 5051799 (1991-09-01), Paul et al.

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