Patents by Inventor Randy Karr

Randy Karr 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: 11774200
    Abstract: A system and method for detecting the presence of firearms and metal articles adapted with embedded RFID tags is disclosed. A plurality of RFID interrogators sequentially and intermittently transmit short burst interrogating signals thereby causing RFID tags within range to transmit a responsive signal which may be used to activate alarms and other security measures. RFID tags are configured using an ASIC chip enabled for 10 Ghz wireless communication. The ASIC chip is embedded within a bolt carrier that includes a slotted antenna aperture resulting in extended range wireless communication. A plurality of RFID interrogators are installed in an detection area and transmit a radio frequency signals which excite any RFID enabled devices within range causing the devices to generate and transmit a response signal which may be used to trigger a variety of security measures such as sounding an alarm, locking doors, contacting law enforcement, etc.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: October 3, 2023
    Assignee: STOPVI, LLC
    Inventors: Donald L. Weeks, Randy Karr
  • Patent number: 11162750
    Abstract: A system and method for detecting the presence of firearms adapted with embedded RFID tags is disclosed. A plurality of RFID interrogators sequentially and intermittently transmit short burst interrogating signals thereby causing RFID tags within range to transmit a responsive signal which may be used to activate alarms and other security measures. RFID tags are configured using an ASIC chip enabled for 10 Ghz wireless communication. The ASIC chip is embedded within a bolt carrier that includes a slotted antenna aperture resulting in extended range wireless communication. A plurality of RFID interrogators are installed in an detection area and transmit a radio frequency signals which excite any RFID enabled devices within range causing the devices to generate and transmit a response signal which may be used to trigger a variety of security measures such as sounding an alarm, locking doors, contacting law enforcement, etc.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: November 2, 2021
    Inventors: Donald L. Weeks, Randy Karr
  • Patent number: 7369484
    Abstract: A radar, or other repetitive interference, detection and data flow control system and method for RF data transmissions uses an RF detector and an omni directional antenna to detect radar or similar signals. The information from the RF detector is communicated to a hub data transmission unit which processes the data about the signal provided by the detector. This information is used by the hub to schedule communications between the hub and subscriber units so that none of the communications between the hub and subscriber fall within the time period of the interfering pulses. Although there are no communications during the time periods of the pulses, the efficiency of communications is improved because collisions and retransmission of data are avoided.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: May 6, 2008
    Assignee: Adaptix, Inc.
    Inventors: Jerry Prismantas, Randy Karr, Bruce C. Rothaar, Jean-Francois Grenon, Heinz Lycklama a'Nyeholt