Issued Patents All Time
Showing 1–25 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7433292 | Optical disk system with delay-difference detector without delay lines | Gerben Willem De Jong, Johannes Hubertus Antonius Brekelmans | 2008-10-07 |
| 7313060 | Optical disk system with non-linearly controlled amplifier | Gerben Willem De Jong, Johannes Hubertus Antonius Brekelmans | 2007-12-25 |
| 6940670 | Method of reading magnetic information which is immunized against thermal asperities | Gerben Willem De Jong, Joao N. V. L. Ramalho, Giuseppe Grillo, Hugo Veenstra | 2005-09-06 |
| 6788749 | Erasure based instantaneous loop control in a data receiver | Johannes Wilhelmus Maria Bergmans, Ho Wai Wong-Lam | 2004-09-07 |
| 6747330 | Current mirror circuit with interconnected control electrodies coupled to a bias voltage source | Gerben Willem De Jong, Rachid El Waffaoui | 2004-06-08 |
| 6515812 | Servo format for hard disks, preferably hard disks | Johannes Wilhelmus Maria Bergmans, Kofi Afolabi Anthony Makinwa | 2003-02-04 |
| 6449113 | Device for reading magnetic information | Patrick Leclerc, Eric Pieraerts, Joao N. V. L. Ramalho, Jean-Loup Barbotin | 2002-09-10 |
| 6381082 | Arrangement for reading information form a record carrier | Johannes W. M. Bergmans | 2002-04-30 |
| 6324028 | Recording apparatus provided with a write driver circuit | Joao N. V. L. Ramalho, Gerben Willem De Jong, Luan Le, Eric Pieraerts | 2001-11-27 |
| 6304396 | Arrangement for reading information from a magnetic record carrier | Joao N. V. L. Ramalho, Patrick Leclerc, Jozef A. M. Ramaekers, Marcel Lugthart, Johannes W. M. Bergmans | 2001-10-16 |
| 6288859 | Device for write compensation in magnetic-media recording | Johannes W. M. Bergmans, Steven L. Brittenham | 2001-09-11 |
| 6188250 | Peak detection apparatus | Joao N. V. L. Ramalho, Mareel L. Lugthart | 2001-02-13 |
| 6137647 | Automatic gain control circuit for use in detecting servo pulses for controlling the position of a read head in a hard disk drive | Joao N. V. L. Ramalho | 2000-10-24 |
| 6134065 | Method and device utilizing erasure information as a reliability indicator in an information medium | Johannes W. M. Bergmans, Steve Brittenham | 2000-10-17 |
| 6118833 | Fast acquisition method for obtaining data from a transmission channel and a data receiver for carrying out this method | Johannes W. M. Bergmans, Ho Wai Wong-Lam | 2000-09-12 |
| 6091558 | Device for write compensation in magnetic media recording | Johannes W. M. Bergmans, Hendrik J. Pothast | 2000-07-18 |
| 5974099 | Unreliability detector apparatus and reproduction apparatus provided with the unreliability detector apparatus | Johannes W. M. Bergmans | 1999-10-26 |
| 5952880 | Variable-gain amplifier with pseudo-logarithmic gain control for generating two control currents | H. Veenstra | 1999-09-14 |
| 5943368 | Transmission, recording and reproduction of a digital information signal | Johannes W. M. Bergmans, Hendrik D. L. Hollmann | 1999-08-24 |
| 5909024 | Integrated system for reading magnetic information | Patrick Leclerc, Fabrice Punch | 1999-06-01 |
| 5859566 | Electronic circuit comprising complementary transconductors for filters and oscillators | Hugo Veenstra | 1999-01-12 |
| 5790336 | Arrangement comprising a magnetic write head, and write amplifier with capacitive current compensation | Hendrik J. Pothast, Ho Wai Wong-Lam | 1998-08-04 |
| 5668676 | Magnetic head write amplifier including current mirrors and switchable current sources | Hendrik J. Pothast, Ho Wai Wong-Lam | 1997-09-16 |
| 5619386 | Arrangement for reading information from a track on a record carrier comprising a fast settling read amplifier for magneto-resistive heads | Joao N. V. L. Ramalho | 1997-04-08 |
| 5589777 | Circuit and method for testing a disk drive head assembly without probing | Bradley K. Davis, Joao N. V. L. Ramalho, Patrice Gamand | 1996-12-31 |