Centre National De La Recherche Scientifique

Supersonic Imagine

C/net, Inc.

Valpirec

Pelous, Yvan

Froyer, Gerard

Maurice, Francois

Fauvarque, Jean-francois

Petit, Michel

Francois Maurice

Bruno Vinouze

Jean-Francois Fauvarque

Michel Petit

Joseph Richard

Yvan Pelous

Gerard Froyer

Nicolas Felix

The present invention relates to an imaging method including the following steps—successively transmitting first and second waves in response to the successive application of first and second electrical excitation signals in separate first and second frequency bands contained in a range of excitation frequencies of the transmitter/receiver, receiving and converting respective first and second acoustic or electromagnetic echoes into respective first and second electrical reception signals, —digitising () the first and second electrical reception signals, —mixing () the first and second digital signals at different demodulation frequencies, —filtering () the first and second demodulated signals, —decimating () the first and second filtered signals.

Method and system for imaging a target from coherent waves

The ultrasound imaging system comprises an ultrasound probe () and computer () for controlling the ultrasound probe and for visualizing an image. The system comprises a processing device located between the probe and the computer that comprises a processing unit () to operate an imaging method and switch unit () for routing the input and output data.

Ultrasound imaging system, and a processing device used inside said ultrasound imaging system

The invention relates to a method of manufacturing a film of polyparaphenylene by electro-polymerization, the method being the type using electrochemical reduction of a monomer having the following formula: ##STR1## where n is an integer lying in the range 1 to 4, the method taking place in an electrochemical cell (1) including a reference electrode (4), a working electrode (2), and a counter electrode (3), said electrodes being immersed in an electrolyte including one or more aprotic solvents, at least one of which is bipolar, and an anhydrous background salt in the presence of an organometallic catalyst of the NiX.sub.2 L type where X is a halogen and L is a binder, the working electrode being a solid cathode and the catalyst/monomer ratio lying in the range 0.1 to 1.

Method of manufacturing a film of polyparaphenylene and applications of

An active matrix display screen which does not include a spurious transistor. The screen includes a matrix of pixels with addressing columns and rows. The addressing rows consist of a stack of semiconductive material, insulating material and conductive material. Where the addressing rows cover conductive segments, a matrix of transistors is formed.

Active matrix display screen without spurious transistor

Growing community of inventors

Draguignan, France

Francois Maurice