Patents by Inventor Alain Bert

Alain Bert has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Non-volatile long memory for fast signals
    Patent number: 4110839
    Abstract: A memory for the non-volatile, long recording of fast signals. It is formed by two memory stages:A first stage, containing in particular a capacitor (C) and a diode (D), which records the input signal (V.sub.s) by charge accumulation for a time long enough for the signal to be transferred to the second stage;A second stage, formed by an MIIS type element (E), which ensures a non-volatile, long recording of these charges and, hence, of the signal V.sub.s.
    Type: Grant
    Filed: September 20, 1977
    Date of Patent: August 29, 1978
    Assignee: Thomson-CSF
    Inventors: Alain Bert, Gerard Kantorowicz
  • Piezoelectric device for image readout
    Patent number: 4025954
    Abstract: A device which converts the spatial distribution of the received light energy into a modulation of an electric signal. It comprises: a non-piezoelectric substrate; an electro-mechanical transducer in the form of interleaved comb shaped electrodes deposited on the substrate and covered by a piezoelectric layer, and a photoconductive layer covering the piezoelectric layer. The image is projected on to the photoconductive layer and, when the transducer is short-circuited, an elastic wave modulated by the image is propagated in the substrate towards an output transducer which delivers the electric reading signal.
    Type: Grant
    Filed: March 21, 1975
    Date of Patent: May 24, 1977
    Assignee: Thomson-CSF
    Inventor: Alain Bert