The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 1990
Filed:
May. 17, 1989
Ruediger Hofmann, Gilching, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
In a crosspoint matrix in which matrix input lines respectively comprising two signal conductors connected to differential outputs of differential line drivers lead to matrix output lines likewise each comprising two signal conductors and having signal outputs of a differential amplifier which has a trigger behavior connected thereto and wherein the two signal conductors of each matrix output line are respectively connectible via a pre-charging transistor to the operating voltage source, these two signal conductors also being connected to one another via a shunt transistor for an early balancing of potential. A pre-charging transistor, in addition to a sampling transistor, can be provided at a pseudo-grounded line associated to a matrix line.