Patents by Inventor Jack Berens

Jack Berens 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).

  • Patent number: 4124779
    Abstract: A communication system is adapted to particularly operate in the AM (amplitude modulated) broadcast band and accommodates stereo transmission via a left and a right channel. The system includes a transmitter which provides an upper and lower sideband; each containing unique audio information definitive of a right and left channel and generated by means of a common carrier frequency. A receiver is adapted to separate the side bands and to process the same to obtain two independent audio signals indicative of an AM stereo transmission. The system as described is compatible with present day AM receiver broadcasting techniques.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: November 7, 1978
    Inventors: Stephen Berens, Jack Berens