Patents by Inventor Darrell Barabash

Darrell Barabash 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).

  • Publication number: 20050200418
    Abstract: The invention relates to a temperature compensating circuit for an amplifier. The circuit comprises a voltage regulator, a component arrangement and a resistor coupling of at least two resistor units. At least part of the output voltage of the temperature compensating circuit is adjustable. The component arrangement includes at least one component with a known temperature dependency of voltage. The resistor coupling forms a slope coefficient as a ratio of values of the resistors in the resistor coupling. The resistor coupling is coupled to the a component arrangement in order to provide the temperature compensating circuit with an output voltage having a temperature dependency which is a function of the slope coefficient and the known temperature dependency of the component arrangement.
    Type: Application
    Filed: March 9, 2004
    Publication date: September 15, 2005
    Inventor: Darrell Barabash
  • Patent number: 6101378
    Abstract: A cellular telephone system maintains a database of prepaid cellular telephone service accounts, including an amount of money remaining in each account. The system uses modems in a blank-and-burst mode to send data and commands over a voice channel. When a call is attempted over a mobile unit, the system sends identification information stored in the mobile unit to a debit processing unit, which then permits the call and debits the associated account if a sufficient amount of money remains in the account, otherwise it terminates the call.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: August 8, 2000
    Assignee: Japan Radio Co., Ltd.
    Inventors: Darrell Barabash, Russell Morris
  • Patent number: 6028892
    Abstract: A radiotelephone system provides a voice channel for carrying voice signals between a mobile unit and a called or calling unit. A first modem in the mobile unit and a second modem connected to a point along the voice channel employ a "blank-and-burst" method of communication to provide a data channel between a first data device connected to the mobile unit and a second data device connected to the second modem. The data channel enables the data devices to communicate with each other seemingly concurrently, and with minimal interference, with the voice signals that are being carried over the voice channel and without requiring modifications to any base station.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: February 22, 2000
    Assignee: JRC Canada
    Inventors: Darrell Barabash, Russell Morris