Inventor

BRICOT CLAUDE

FR47 patents

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

BRICOT CLAUDE

THOMSON CSF

Device for optical recording and read-out of data along a prerecorded track

Calibration device of the optical power applied to an optical disc for recording of data

Process and optical device for generating signals controlling the position of a scanning spot of the tracks of a data carrier

Process and system for optical recording and reading on a mobile data carrier

Stigmatic optical device and an optical recording head equipped with said device

Optical head in a device for recording and reading a data carrier

Optical device for the recording and reading of data media and optical memory system incorporating such a device

Information carrier disk with angular coding means and a system for driving said disk in rotation

Process for acquiring fingerprints and device for implementing this process

Device for displacing the reading head of a video disc in radial and vertical directions

Optical head in a device for recording and reading a data carrier

Mobil pre-etched data carrier

Mobile pre-etched data carrier and an optical tracking device using such a carrier

Optical disc reader having diffraction minima at non-interrogated tracks

Process and system for optical recording and reading on a mobile data carrier

Optical track follower device with sampling

Semiconductor laser source optical reading head

Optical device for access to a track carried by a data carrier and optical memory system incorporating such a device

Device for molding information-carrying disks

Electrically controlled optical deflector

Device for compensating the lack of balance of a deviating mirror belonging to an optical system for illuminating a data medium

Method for the making of a secured document and secured document obtained by this method

Method and devices for the recording of pictures by laser

THOMSON BRANDT

Optical focussing sensor

Optical read-out system including asymetrical beam intensity and four detector cells

Optical projection device and an optical reader incorporating this device

Optical focussing device

Device for the optical read-out of a diffractive track belonging to a data carrier in the form of a disc or tape

Optical device for projecting a radiation beam onto a data carrier

Process for producing information carrying discs

Data carrier optically readable by transmission and method of manufacturing such a data carrier

Data carrier optically read out by transmission, and method of manufacturing said data carrier

Thermosensitive data-carrier designed for the recording of information and a method of recording information on such a data-carrier

Thermosensitive data-carrier designed for the recording of information and a method of recording information on such a data-carrier

System for the optical read-out by reflection of a data carrier using half beams

System for automatically correcting the duty factor of the carrier wave arising from reading-out a data carrier

Recording device for optically recording information on a carrier with a light spot and a positional control of the spot

Optical player with half wave plate

Device for detecting focussing error in an optical reader head

Method for protecting a flexible record disc and disc so protected

Apparatus for making video discs

Process for making video discs

THALES SA

Secured document, system for manufacturing same and system for reading this document

Secured document, system for manufacturing same and system for reading this document

Method for serial production of secure documents and machine therefor

BRICOT CLAUDE

Optical focussing device

IDMATICS S A

Flexible card with validity checking device