Inventor
PIOTROWSKI HERBERT
DE4 patents
Patents
4 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
US4062014ADec 6, 1977
Natural binary to logarithmic binary conversion device with means for range selection
PHILIPS CORP11 citations71
US4033443AJul 5, 1977
Logic circuit for grey-tone printer
PHILIPS CORP9 citations71