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:
May. 25, 1982
Filed:
Feb. 05, 1980
Applicant:
Inventors:
Karl-Heinz Klein, Wiesbaden-Erbenheim, DE;
Reinhard Kutzner, Darmstadt, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360124 ;
Abstract
In order to eliminate crosstalk between adjacent playback and recording heads in a multi-track, multi-head magnetic tape recorder or playback apparatus, the invention provides for tapping off part of the recording current and suitably adjusting its amplitude and/or phase to define a correction current which is applied to the playback head of the apparatus. The voltage resulting from the correction current exactly compensates the voltage induced by the stray magnetic field of the recording head. The correction circuit includes frequency-dependent components which account for the frequency dependence of the crosstalk signals.