Patents by Inventor Eric M. Chu

Eric M. Chu 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: 8103380
    Abstract: Systems and methods for remotely managing a vending machine system are provided. A host system transmits control data to an audit system installed in a vending machine system. This control data is used to modify a data collection parameter of the audit system, such as modifying alert conditions, reporting schedules, and filter terms used to parse DEX files received from a vending machine controller.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: January 24, 2012
    Assignee: Cantaloupe Systems, Inc.
    Inventors: Fred Cheng, Mandeep S. Arora, Anant Agrawal, A. Louis Beaudoin, Eric M. Chu
  • Patent number: 7385504
    Abstract: A vending machine door monitoring system for an audit system is provided. This door monitoring system may utilize the same door switch utilized by the vending machine controller (VMC) in order to detect the state of an access door for the vending machine. This door monitoring system may have a separate power supply for applying a back-up voltage to a door circuit in the event that the VMC fails to supply the voltage. The door monitoring system may be further configured to detect a state of the door circuit regardless of the order in which the terminals from the door switch are coupled to the audit system.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: June 10, 2008
    Assignee: Cantaloupe Systems, Inc.
    Inventors: Anant Agrawal, A. Louis Beaudoin, Mandeep S. Arora, Fred Cheng, Eric M. Chu
  • Patent number: 7325728
    Abstract: An audit system for a vending machine system is provided. This audit system is configured to retrieve operational data, such as a DEX file, from a vending machine controller in the vending machine system. The audit system is further configured to store a communications log of the data transmitted between the vending machine controller and the audit system. This communications log can be used by an operator at a host system to assist in debugging communication errors between the audit system and the vending machine controller.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: February 5, 2008
    Assignee: Cantaloupe Systems, Inc.
    Inventors: Mandeep S. Arora, Fred Cheng, Anant Agrawal, A. Louis Beaudoin, Eric M. Chu
  • Patent number: D531626
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: November 7, 2006
    Assignee: Cantaloupe Systems, Inc.
    Inventors: Anant Agrawal, Mandeep S. Arora, Fred Cheng, Eric M. Chu, A. Louis Beaudoin