Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5081712 | Method and apparatus for obtaining phase in sensitive and/or polarization-insensitive optical heterodyne receiver for a fsk-modulated transmission signal | — | 1992-01-14 |
| 5060311 | Method and apparatus for obtaining phase or polarization insensitive optical heterodyne reception for DPSK or ASK-modulated transmission signal | Franz Auracher | 1991-10-22 |
| 5023885 | External optical resonator for a semiconductor laser | Franz Auracher, Bernd Noll, Julius Wittmann | 1991-06-11 |
| 5023949 | Apparatus for generating an FSK-modulated optical signal having two different polarization conditions for an optical transmission system having an optical two-filter FSK super-heterodyne receiver | Franz Auracher, Alfred Ebberg, Bernd Noll, Hermann Rodler | 1991-06-11 |
| 4965857 | Method for synchronized polarization switching of an optical transmission signal of an optical transmission system having superheterodyne reception and an apparatus for the implementation of said method | Franz Auracher, Alfred Ebberg, Bernd Noll, Hermann Rodler | 1990-10-23 |