Device for reading out a two-dimensional charge pattern by means

Details Device for reading out a two-dimensional charge pattern by means Device for reading out a two-dimensional charge pattern by means

1985-03-28

1987-04-28

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

358213, 250578, H04Q 900, H04N 315

Patent

active

046618147

ABSTRACT:
A device for reading out two-dimensional charge patterns contains a receiver matrix (consisting of elementary transducers arranged in rows and columns) and a switching matrix (consisting of a carrier plate and electronic components in chip form) which are arranged on the long side of the carrier plate which faces away from the receiver matrix. A switchable amplifier in chip form is assigned to each of the elementary transducers connecting lines of at least approximately the same length are provided between contact lips and the corresponding switchable amplifiers, and signal output lines and ground lines run parallel to one another, while control lines run perpendicular to them. This design of the switching matrix makes the device unusually simple in its construction, with the amplifiers that are arranged on the long side of the carrier plate, which faces away from the receiver matrix, always being accessible, even after the device has been assembled. Thus, when individual image points drop out, the corresponding amplifiers can be replaced quickly and easily.

REFERENCES:
patent: 4477835 (1984-10-01), Berger et al.
patent: 4581539 (1986-04-01), Kimata
patent: 4592029 (1986-05-01), Altman et al.
Article, "State-of-the-Art in Two-Dimensional Ultrasonic Transducer Array Technology", by Maginness et al. in Medical Physics, vol. 3, No. 5, pp. 312-318 (1976).

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