Patents by Inventor Fred D. Kedjierski

Fred D. Kedjierski 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: 4862514
    Abstract: An improved hybrid electronic radio repeater comprising an antenna means for receiving a select, narrow frequency band of radio wave signals, the radio wave signal(s) being transmitted from discrete sources wherein the radio wave signals contain source, status and control information. A radio frequency amplifier means filters and amplifies the radio signals and passes them to a mixing means. The mixing means, including a local oscillator means, combines the radio frequency signals with the local oscillator signals to produce intermediate frequency signals. The intermediate frequency signals are narrow filtered causing tuning by local oscillator tuning means. An intermediate frequency amplifier means detects and amplifies the IF signals and generates a signal strength level indication in response thereto.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: August 29, 1989
    Assignee: World Electronics, Inc.
    Inventor: Fred D. Kedjierski