Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE39568 | Method for tracking control | Peter Mahr | 2007-04-17 |
| 7130254 | Reproduction or recording apparatus for different optical recording media | — | 2006-10-31 |
| 6621618 | Optical scanning device | Klaus Oldermann, Tsuneo Suzuki | 2003-09-16 |
| 6574064 | Tape recorder | — | 2003-06-03 |
| 6449112 | Tape recorder having a driver circuit for a matrix head | Edgar Wursthorn | 2002-09-10 |
| 6433952 | Method for tracking control | Peter Mahr | 2002-08-13 |
| 6400521 | Process for the recording of digital signals on a magnetic tape in multiple longitudinal tracks and magnetic-tape recording apparatus for carrying out the process | — | 2002-06-04 |
| 6389219 | Method and device for controlling the phase relation between a head drum and tape feed system of a magnetic tape recording device | Peter Mahr | 2002-05-14 |
| 6347181 | Time-compressed signal recording and reproducing process | Klaus Oldermann | 2002-02-12 |
| 6233212 | Monitoring and adjusting a motor current in a disk data drive to optimize a disk rotation speed | — | 2001-05-15 |
| 6191907 | Head drum for a magnetic tape recorder | Edgar Wursthorn, Klaus Oldermann | 2001-02-20 |
| 6122134 | Combined longitudinal and transversal tracking | Klaus Oldermann, Peter Mahr, Gerhard Reiner, Bruno Weihs | 2000-09-19 |
| 6078449 | Method for the control of track following in a recorder | Christof Stumpf, Edgar Wursthorn | 2000-06-20 |
| 5978188 | Multitrack tape device using a movable magnetic head with a planar surface and including a tape supporting device | Klaus Oldermann | 1999-11-02 |
| 5940449 | Signal processing system for digital signals | Dietmar Brauer, Gerhard Reiner | 1999-08-17 |
| 5875061 | Method and apparatus for the recording of signals | Klaus Oldermann | 1999-02-23 |
| 5764457 | Cassette including a recording medium for a recording apparatus | Dietmar Uhde, Jens Spille, Fritz Weisser, Hans-Joachim Platte, Ernst Schroder +2 more | 1998-06-09 |
| 5644675 | Method of helical scan magnetic tape recording | Gerhard Reiner, Peter Mahr | 1997-07-01 |
| 5471124 | Method for determining the position in a cassette recorder | Gerhard Reiner | 1995-11-28 |
| 5253130 | Head track alignment arrangement in a magnetic tape recorder | Franz Bigge, Paul A. Gillot | 1993-10-12 |
| 5113397 | Apparatus relating to the reproduction of error encoded digitally recorded signals | Dietmar Uhde, Franz Bigge | 1992-05-12 |
| 5036409 | Signal selection arrangement | Dietmar Uhde | 1991-07-30 |
| 4914531 | Videorecorder with rotating head drum and video heads | Hermann Link | 1990-04-03 |
| 4876614 | Track-readjusted magnetic-tape recorder with transverse tracking | Hartmut Schandl | 1989-10-24 |
| 4727446 | Method of determining the elapsed and/or still available playing time of a magnetic tape | — | 1988-02-23 |