Patents by Inventor Chandra Alifen

Chandra Alifen 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).

  • Line power failure scheme for a gaming device
    Patent number: 4782468
    Abstract: A power failure scheme for a gaming device in which, upon the detection of a failure of the line power, particular processing operations are completed before power is completely lost. A regulated D.C. power supply coupled to the line power generates an interrupt having the highest priority upon detecting a failure of the line power. The main processor of the gaming device is responsive to a power fail interrupt to complete any access to a safe memory which may have been on-going at the time the interrupt was generated or to complete any state transition which was on-going at the time the interrupt was generated.
    Type: Grant
    Filed: August 5, 1986
    Date of Patent: November 1, 1988
    Assignee: Bally Manufacturing Corporation
    Inventors: Steven W. Jones, Chandra Alifen