Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4903020 | Method and apparatus for digitally processing stored compressed analog signals | Heinz Gockler | 1990-02-20 |
| 4791385 | Voltage controlled amplifier for symmetrical electrical signals | — | 1988-12-13 |
| 4758797 | Amplifier with compressor and expander function for ground symmetrical electrical signals | — | 1988-07-19 |
| 4725789 | Circuit arrangement for a low-noise audio frequency source | — | 1988-02-16 |
| 4415866 | Circuit for dynamic compression and/or expansion | — | 1983-11-15 |
| 4321482 | Circuit system for the generation of a direct control voltage which is dependent on an alternating voltage | Ernst Schroder | 1982-03-23 |
| 4278945 | Circuit for the generation of a control variable for the control of the transfer constant of electronically actuable amplifying and attenuating members | Ernst Schroder | 1981-07-14 |
| 4216434 | Variable gain alternating voltage amplifier | — | 1980-08-05 |
| 4190806 | Circuit arrangement for the selective compression or expansion of the dynamic range of a signal | — | 1980-02-26 |