Patents by Inventor Monte Deh Lien

Monte Deh Lien 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).

  • Circuit for encoding an asynchronous binary signal into a synchronous coded signal
    Patent number: 4007421
    Abstract: Successive intervals of an asynchronous binary signal are examined for the occurrence of transitions and each transition is encoded into a 2-bit binary code word. The occurrence of two transitions within a predetermined interval of time indicates that the asynchronous signal is distorted. A first code word is generated in response to the first transition to indicate to remote decoding apparatus the occurrence of the first transition within the interval of actual ocurrence. A second code word is generated in response to the second transition to indicate to the remote decoding apparatus the occurrence of the second transition in an interval immediately subsequent to the interval in which the second transition actually occurred. Polarity information is periodically transmitted to the decoding apparatus to ensure that the polarity of the asynchronous signal reproduced by the decoding apparatus is the same as the polarity of the original asynchronous signal.
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: February 8, 1977
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: Monte Deh Lien