Patents by Inventor Jean F. Barda

Jean F. Barda 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).

  • System for digitally transmitting and displaying texts on television screen
    Patent number: 4213124
    Abstract: In the disclosed teletext system, the transmitter station broadcasts data cks data from several channels, the data packs being time multiplexed. Each data pack comprises a prefix signal for causing a teletext receiver either to accept the data packs of a selected channel or to reject data packs from other channels. In addition to the prefix, and possibly page flags followed by page numbers and row flags followed by row numbers, the sequence of eight-bit words, transmitted in a pack, may comprise escape eight-bit words which are followed by type identity eight-bit words, themselves followed by a sequence of characters to be displayed in the same type the identity of which is determined by the preceding type identity eight-bit words.
    Type: Grant
    Filed: September 14, 1977
    Date of Patent: July 15, 1980
    Assignees: Etablissement Public de Diffusion dit "Telediffusion de France", L'Etat Francais
    Inventors: Jean F. Barda, Roger Brusq, Bernard Marti, Alain Poignet
  • System for digitally transmitting and displaying texts on television screen
    Patent number: RE32187
    Abstract: In the disclosed teletext system, the transmitter station broadcasts data cks data from several channels, the data packs being time multiplexed. Each data pack comprises a prefix signal for causing a teletext receiver either to accept the data packs of a selected channel or to reject data packs from other channels. In addition to the prefix, and possibly page flags followed by page numbers and row flags followed by row numbers, the sequence of eight-bit words, transmitted in a pack, may comprise escape eight-bit words followed by type identity eight-bit words, which are themselves followed by a sequence of characters to be displayed in the same type the identity of which is determined by the preceding type identity eight-bit words.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: June 17, 1986
    Assignee: Etablissement Public de Diffusion dit "Telediffusion de France"
    Inventors: Jean F. Barda, Roger Brusq, Bernard Marti, Alain Poignet