Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1982-06-07
1985-07-09
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
34087013, G01V 122
Patent
active
045286507
ABSTRACT:
Apparatus for multiplexing ancillary devices in a streamer cable towed by a boat in ocean seismic operation, in which the cable includes a plurality of ancillary devices located throughout the cable. The apparatus includes a source providing step pulses located on the boat. Also located on the boat is a circuit providing control signals and a network providing control voltages. A plurality of series connected control pulse circuits are located in the streamer cable with the first control pulse circuit of the series being connected to the step pulse source. The control pulse circuits are responsive to the step pulses for providing a plurality of control pulses in a predetermined sequence. An energizing voltage source located on the boat provides a square wave energizing voltage. A plurality of switching networks are located throughout the cable with each switching network being connected to a corresponding ancillary device. Each switching network is also connected to a corresponding control pulse circuit and to either the control voltage source or to the energizing voltage source depending on the nature of the corresponding ancillary device. Display apparatus is connected to the plurality of switching networks and displays information from those ancillary devices that provide data signals as the data signals are provided by the plurality of switching networks.
REFERENCES:
patent: 2605360 (1952-07-01), Trevor
patent: 3103644 (1963-09-01), Burton
patent: 3189870 (1965-06-01), Roever
patent: 3444510 (1969-05-01), Tyndale et al.
patent: 3512125 (1970-05-01), Raymond
patent: 3996553 (1976-12-01), Siems et al.
patent: 4023140 (1977-05-01), Siems et al.
patent: 4398271 (1983-08-01), Cretin et al.
Howlett Donald L.
Meyer Herbert J.
Zimmer Stanley F.
Gillespie Ronald G.
Kulason Robert A.
Moskowitz Nelson
Steinberger Brian
Texaco Inc.
LandOfFree
Streamer cable multiplexing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Streamer cable multiplexing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Streamer cable multiplexing apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-913310