Bracht; Roger R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Bracht; Roger R..The latest application filed is for "offset for protection against amorphous pips".
- Bracht; Roger R. - Colorado Springs CO
| Patent | Date |
|---|---|
| Offset for protection against amorphous pips Grant 4,882,721 - Bracht , et al. November 21, 1 | 1989-11-21 |
| Method and apparatus for varying laser intensity level Grant 4,695,994 - Steenbergen , et al. September 22, 1 | 1987-09-22 |
| Single beam direct read during write and write protect system for use in an optical data storage system Grant 4,680,594 - Bracht July 14, 1 | 1987-07-14 |
| Write protection and data detection using differential detector Grant 4,606,016 - Verboom , et al. August 12, 1 | 1986-08-12 |
| Driver circuit for laser diode Grant 4,594,717 - Bracht , et al. June 10, 1 | 1986-06-10 |
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