Patents by Inventor Eric Stanley Usher

Eric Stanley Usher 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).

  • Data transmission system for transmitting primary and secondary intelligence
    Patent number: 4092595
    Abstract: Data transmission in, for instance, a PCM system, is effected by translation of the binary codes into ternary combinations such that to each binary code there is provided n ternary codes with the choice of the ternary code sent being dependent on secondary intelligence, such as signalling information and/or synchronization information, to be sent. In the example described a binary bit stream is split into three bit blocks each of which is converted into a three bit ternary code.
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: May 30, 1978
    Assignee: International Standard Electric Corporation
    Inventors: Donald Adams Weir, Eric Stanley Usher