Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6330123 | Head assembly having a single pass servo writer | Theodore A. Schwarz, Hung T. Tran | 2001-12-11 |
| 6134070 | Encoded servo track configurations, servo writer and systems/method regarding same | Hung T. Tran, Theodore A. Schwarz, Alan R. Olson, Richard W. Molstad, Gary D. Moeller +2 more | 2000-10-17 |
| 6091565 | Head assembly having a single pass servo writer | Theodore A. Schwarz, Hung T. Tran | 2000-07-18 |
| 6025967 | Method of identifying magnetic tape characteristics | Leroy A. Kuta, Michael J. Kelly | 2000-02-15 |
| 5946156 | Tape servo system and methods, write/read heads, and servo track configurations regarding same | Theodore A. Schwarz, Hung T. Tran | 1999-08-31 |
| 5675448 | Track pitch error compensation system for data cartridge tape drives | Richard W. Molstad, Bennett G. Dy | 1997-10-07 |
| 5661616 | Track servo control method for data cartridge tape drives | Hung T. Tran, George Chavez | 1997-08-26 |
| 5572378 | Direct file access system for magnetic tape | Theodore A. Schwarz, Robert E. Wolff | 1996-11-05 |
| 5450257 | Head-tape alignment system and method | Hung T. Tran, James S. Anderson, Christopher L. Hill, Durkee B. Richards | 1995-09-12 |
| 5434732 | Balanced cantilevered head positioning mechanism for multitrack tape recorder | Theodore A. Schwarz, Durkee B. Richards | 1995-07-18 |
| 5426543 | Servo positioning system for magnetic recording media | Bennett G. Dy, Richard W. Molstad | 1995-06-20 |
| 5390054 | Method and system for minimizing the error rate of a digital recording system by predicting the optimal bias current | Theodore A. Schwarz, Richard W. Molstad, Tim T. Ngo | 1995-02-14 |
| 5339202 | Method and apparatus for amplitude compensated write equalization | John E. Heinz, Michael E. Hamerly, Richard W. Molstad, Theodore A. Schwarz | 1994-08-16 |
| 5280402 | Combined stepper motor and voice coil head positioning apparatus | James S. Anderson, Noel L. Allen, Durkee B. Richards, Theodore A. Schwarz, Robert W. Tapani +1 more | 1994-01-18 |
| 5229895 | Multi-track servo recording head assembly | Theodore A. Schwarz | 1993-07-20 |
| 5008765 | Method and apparatus for reading or writing on tape using a servo positioned multiple channel head | — | 1991-04-16 |
| 4791643 | Single track orthogonal error correction system | Richard W. Molstad | 1988-12-13 |
| 4473818 | Bipolar digital to analog converter | — | 1984-09-25 |
| 4351007 | Editor for combining digitally recorded audio signals | — | 1982-09-21 |
| 4292684 | Format for digital tape recorder | Michael J. Kelly | 1981-09-29 |