Patents by Inventor Yosef Levi

Yosef Levi 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).

  • Independent wideband RF transmission detector for cellular telephone
    Patent number: 5678200
    Abstract: A device for controlling an accessory based on the detection of transmissions of appropriate input frequency exceeding a minimum threshold amplitude from a nearby cellular telephone. The device includes an independent receiver for directly detecting the transmissions from the nearby cellular telephone and a controller connected to the receiver for controlling the accessory device based on the detection of the transmission from the nearby cellular phone. The independent receiver includes a frequency discriminator of a totally digital design for detecting a signal which is greater than a predetermined threshold frequency and amplitude.
    Type: Grant
    Filed: June 21, 1995
    Date of Patent: October 14, 1997
    Assignee: Mercur Ltd.
    Inventor: Yosef Levi