Inventor
MAERFELD CHARLES
17 patents
⚠️ This page may combine multiple inventors who share the name “MAERFELD CHARLES”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
THOMSON CSF
14 patentsUS5022731AJun 11, 1991
Device for optical frequency translation and a modulator in which said device is employed
THOMSON CSF26 citations92
US4306456ADec 22, 1981
Elastic wave accelerometer
THOMSON CSF51 citations92
US4870972AOct 3, 1989
Multiple-frequency acoustic transducer, especially for medical imaging
THOMSON CSF27 citations86
US4314098AFeb 2, 1982
Reversible electroacoustic transducer device having a constant directivity characteristic over a wide frequency band
THOMSON CSF28 citations81
US4477784AOct 16, 1984
Surface wave dispersive acoustic delay line
THOMSON CSF22 citations78
US4134623AJan 16, 1979
System for processing an electric signal using elastic surface waves
THOMSON CSF6 citations73
US4128615ADec 5, 1978
Method for processing an electric signal using elastic surface waves
THOMSON CSF6 citations73
US3947783AMar 30, 1976
Acoustic surface wave device comprising arrays of parallel metallic strips
THOMSON CSF12 citations73
US4122495AOct 24, 1978
Method and a device for an electro-acoustic reading of an optical device image
THOMSON CSF8 citations72
US4388599AJun 14, 1983
Piezoelectric elastic-wave convolver device
THOMSON CSF10 citations71
US4547870AOct 15, 1985
Velocity hydrophone
THOMSON CSF7 citations66
US4159539AJun 26, 1979
Elastic waves device for memorizing information
THOMSON CSF3 citations62
US4281350AJul 28, 1981
Acoustoelectric device for reading or processing a two-dimensional optical image
THOMSON CSF3 citations60
US4323985AApr 6, 1982
Two dimensional acousto-electrical device for storing and processing information
THOMSON CSF0 citations39