Inventor
GEPPERT RUDOLF
DE3 patents
Patents
3 patentsUS4543537ASep 24, 1985
Method of and arrangement for controlling the gain of an amplifier
PHILIPS CORP72 citations93
US4445229AApr 24, 1984
Device for adjusting a movable electro-acoustic sound transducer
PHILIPS CORP62 citations93
US4471453ASep 11, 1984
Measuring mis-match between signals
PHILIPS CORP3 citations60