Patent · US Expired

Device for reading a two-dimensional charge image

US4742494A · kind A · utility

5Cited by

4References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Fritz Breimesser · Nürnberg, DE
Bernd Granz · Oberasbach, DE
Bertram Sachs · Regensburg, DE

Key dates

Filing date	Aug 5, 1987
Grant date	May 3, 1988
Priority date	—
Expiry date	Aug 5, 2007

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB06B1/0629
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Stacked slab-shaped support bodies of electrically insulated material are provided with electrodes at one of their side surfaces. In the stack, the electrodes of a support body form the rows of a matrix. The support bodies are each connected detachably to a circuit board on which switchable amplifiers are arranged. In a preferred embodiment, the switchable amplifiers are dual-gate MOS-FETs, the first gate terminals of which are each connected electrically to an electrode of the support body.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.