Patents by Inventor Daniel Forster

Daniel Forster 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).

  • High speed multiplexer and demultiplexer for pulse code channels
    Patent number: 4063040
    Abstract: For multiplexing 6 binary channels for example, two transcoders are respectively fed by the groups of input channels A, B, C and D, E, F in each of which is inserted a locking and identification word. Two three-channel frames in intermediate ternary form are thus obtained. Conversion into definitive ternary code (moment +, O, -) takes place at the same time as the interlacing, moment by moment, of the two three-channel frames. The demultiplexer groups the moments pertaining to one and the same three-channel frame for transcoding. The system allows high speed multiplexing.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: December 13, 1977
    Assignee: Compagnie Europeenne de Teletransmission (C.E.T.T.)
    Inventors: Sylvain Fontanes, Daniel Forster