Patents by Inventor Iorgny Brogardh

Iorgny Brogardh 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).

  • Circuits with electro-optical feedback for display and a digitizer application
    Patent number: 4577189
    Abstract: A device for transforming information in electrical form into optical form, where the optical information consists of light intensity, light polarization or spectral composition varying with time. The transformation of information takes place from electrical into optical form by means of optical modulators, e.g. liquid crystals, and the transformation from optical form into electrical form is arranged to be carried out with photo-detectors, the device comprising components to control or sense said optical modulators in one, two or three-dimensions with time, and to sense or control said photo-detectors.
    Type: Grant
    Filed: March 30, 1982
    Date of Patent: March 18, 1986
    Assignee: ASEA Aktiebolag
    Inventors: Morgan Adolfsson, Iorgny Brogardh, Christer Ovren