Patents by Inventor Michael M. Mardkha

Michael M. Mardkha 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).

  • System for tracking items stored in a safe
    Patent number: 9852320
    Abstract: A radio-frequency identification (“RFID”) system for tracking items stored in a safe. The RFID safe system may include at least a safe and an RFID system. An RFID antenna may be fixed inside the safe. For example, the RFID antenna may fixed on an inner surface of a door to the safe such that the RFID antenna sends and receives signals across multiple angles as the safe door opens and closes.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: December 26, 2017
    Inventor: Michael M. Mardkha
  • SYSTEM FOR TRACKING ITEMS STORED IN A SAFE
    Publication number: 20170228569
    Abstract: A radio-frequency identification (“RFID”) system for tracking items stored in a safe. The RFID safe system may include at least a safe and an RFID system. An RFID antenna may be fixed inside the safe. For example, the RFID antenna may fixed on an inner surface of a door to the safe such that the RFID antenna sends and receives signals across multiple angles as the safe door opens and closes.
    Type: Application
    Filed: February 1, 2017
    Publication date: August 10, 2017
    Inventor: Michael M. Mardkha
  • TTL Compatible CMOS input buffer
    Patent number: 4438352
    Abstract: A circuit for converting a digital signal from TTL to CMOS levels. The circuit delay is reduced by providing a transmission gate between the P and N type transistors in the first stage. This transmission gate has a high impedance during transistions and a low impedance during steady state conditions. In operation, for a rising input signal, the first stage transistors are isolated, allowing the first stage N type transistor to pull down the first stage output line without delay.
    Type: Grant
    Filed: August 17, 1982
    Date of Patent: March 20, 1984
    Assignee: Xerox Corporation
    Inventor: Michael M. Mardkha