Patent · US Expired

Magnetic reading head having a tapered reading opening and/or a tapered reading stylus

US5258603A · kind A · utility

1Cited by

3References

17Claims

0Family size

Assignee

ULTRAKUST Electronic GmbH · DE

Inventors

Alfred Böhm · Bad Kötzting, DE
Wilhelm Binder · Ramstein-Miesenbach, DE

Key dates

Filing date	Jul 5, 1991
Grant date	Nov 2, 1993
Priority date	—
Expiry date	Jul 5, 2011

Classification

Technology area (CPC G)Physics
CPC primaryG06K7/087
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The invention concerns a reading head with a tapered reading opening and/or a tapered reading stylus for reading bar-type, especially passive magnetic information on a data carrier. A high resolution in reading this information with a high output signal is obtained by tapering the reading opening in direction of the end face of the reading head. The reading head is located in a casing pot and has at least one field plate sensor, on which side remote from the face a permanent magnet is placed with a magnetic shunt to the casing pot.

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