Electronic filter

Details Electronic filter Electronic filter

1980-10-22

1985-04-09

Wilbur, Maynard R.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

307520, 307543, 328167, G01V 122, H03K 1716

Patent

active

045105855

ABSTRACT:
An improved duty cycle controlled filter, wherein a resistance is included in every circuit path that exists between a switch terminal and an amplifier terminal. Such improved filter produces low distortion and has been found to be especially useful in data acquisition circuits of seismic exploration systems.

REFERENCES:
patent: 3180445 (1965-04-01), Schwartz et al.
patent: 3568142 (1971-03-01), Landrum, Jr. et al.
patent: 3740588 (1973-06-01), Stratton et al.
patent: 3777178 (1973-12-01), Gratzmuller
patent: 3803423 (1974-04-01), Libby
patent: 4009400 (1977-02-01), Harris et al.
patent: 4027173 (1977-05-01), Nomiya et al.
patent: 4031506 (1977-06-01), Siems
patent: 4041443 (1977-08-01), Thigpen
patent: 4152691 (1979-05-01), Ward
"Electronic Letters", vol. 5, No. 1, pp. 12-13, (Jan. 1969).
Sun and Frisch, "Resistance Multiplication in Integrated Circuits by Means of Switching", IEEE Transactions on Circuit Theory, vol. CT-15, No. 3, pp. 184-192, (Sep. 1969).
Kaehler, "Periodic Switched Filter Networks-A Means of Amplifying and Varying Transfer Functions", IEEE Journal of Solid-State Circuits, pp. 225-230, (Aug. 1969).

Affiliated with

Also associated with

Rating

Electronic filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1173685