Communications: electrical – Selective – Having electron beam device
Patent
1975-12-29
1977-04-12
Moskowitz, Nelson
Communications: electrical
Selective
Having electron beam device
340 155DP, 346 33C, 325 6, G01V 122
Patent
active
040178331
ABSTRACT:
Cableless seismic recorders employ a small, mobile amplifier-recorder in which preferentially the recorder tape contains in digital form both identification information (called header data) and the response of a plurality of seismometers (seismometer group) to a seismic source, the whole arrangement requiring no cable connection between the various recorders and the control truck. Since this system is energized by a battery, it has not been previously possible to use summation techniques, as required, for example, when any repetitive seismic source is employed. Such a system is described here. Low power consumption is obtained by using a plurality of recirculating, dynamic shift registers connected in cascade. Feedback from the output of this cascade register chain under synchronized condition permits the seismometer response to the second use of the source to be additively superimposed upon the stored data from the first use of the source, and so on. Ultimately, the control truck sends commands terminating the cumulative recording and causing the summed signals, in turn, to be reproducibly recorded.
REFERENCES:
patent: 3134957 (1964-05-01), Foote et al.
patent: 3806864 (1974-04-01), Broding et al.
patent: 3881166 (1975-04-01), Fort et al.
patent: 3883725 (1975-05-01), Fort et al.
patent: 3946357 (1976-03-01), Weinstein et al.
RCA Solid State, Data Book Series, COS/MOS Digital Integrated Circuits, 1973, pp. 2-6.
McIlroy Arthur
Metrailer Albert C.
Moskowitz Nelson
Standard Oil Company (Indiana)
LandOfFree
Summer for group recorder does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Summer for group recorder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Summer for group recorder will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1284168