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:
Nov. 28, 2000
Filed:
Sep. 28, 1998
Applicant:
Inventor:
Michael Grimm, Villingen-Schwenningen, DE;
Assignee:
Deutsche Thomson-Brandt GmbH, Villingen-Schwenningen, US;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 58 ; 36912401 ; 36912415 ;
Abstract
A device is disclosed for reading from and/or writing to optical recording media, which has a scanner whose output is connected to the input of an analogue-to-digital converter, whose output is in turn connected to the input of a mirror signal detector. The device is able to generate a reliable mirror signal even at relatively high track crossing frequencies. The mirror signal detector has at least one element which is variable as a function of frequency.