Inventor
BERTHET PIERRE
FR12 patents
⚠️ This page may combine multiple inventors who share the name “BERTHET PIERRE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
THOMSON CSF
5 patentsUS4562564ADec 31, 1985
Process and optical device for generating signals controlling the position of a scanning spot of the tracks of a data carrier
THOMSON CSF32 citations92
US4561082ADec 24, 1985
Process and system for optical recording and reading on a mobile data carrier
THOMSON CSF28 citations92
US4556966ADec 3, 1985
Information carrier disk with angular coding means and a system for driving said disk in rotation
THOMSON CSF27 citations89
US4553228ANov 12, 1985
Mobile pre-etched data carrier and an optical tracking device using such a carrier
THOMSON CSF26 citations80
US4669077AMay 26, 1987
Process and system for optical recording and reading on a mobile data carrier
THOMSON CSF12 citations73