P

Inventor

FRUEHAUF WALDEMAR

DE5 patents
⚠️ This page may combine multiple inventors who share the name “FRUEHAUF WALDEMAR”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SIEMENS AG

3 patents
US4528667AJul 9, 1985

System for the transmission of information messages

SIEMENS AG82 citations92
US4691128ASep 1, 1987

Circuit for coupling a signal processing device to a transmission line

SIEMENS AG3 citations58
US4626790ADec 2, 1986

Demodulator for amplitude-modulated carrier frequency oscillations

SIEMENS AG0 citations48

TEKADE FELTEN & GUILLEAUME

1 patent
US4264972AApr 28, 1981

Method and circuit for detecting errors in digital signals

TEKADE FELTEN & GUILLEAUME8 citations64

BIERL RUDOLF

1 patent
US8126154B2Feb 28, 2012

Circuit arrangement for the bidirectional operation of sound transducers disposed at the ends of a measuring section

BIERL RUDOLF3 citations60