Patents by Inventor Jeevan G. Bank

Jeevan G. Bank 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).

  • Power amplification for parametric loudspeakers
    Publication number: 20080175404
    Abstract: A method for minimizing the reactance of a reactive load transducer at a carrier frequency in an amplifier with a power output stage for amplifying a signal, comprises: supplying a signal to the power output stage of the amplifier which includes at least one reactive component coupled to the amplifier; and counteracting transducer reactance at a carrier frequency by interacting the signal with the at least one reactive component.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 24, 2008
    Inventors: Jeevan G. Bank, James J. Croft
  • Power amplification for parametric loudspeakers
    Patent number: 7319763
    Abstract: A power amplifier for a parametric loudspeaker system which utilizes switch-mode power conversion to increase efficiency. The power amplifier is configured to coordinate the switching frequency of the amplifier with the carrier frequency of the parametric loudspeaker system, so a lower switching frequency may be used even though the power amplifier must amplify ultrasonic signals. The amplifier can be further optimized to counteract the reactance of the transducer load at the carrier frequency.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: January 15, 2008
    Assignee: American Technology Corporation
    Inventors: Jeevan G. Bank, James J. Croft, III
  • Signal derived bias supply for electrostatic loudspeakers
    Patent number: 7158646
    Abstract: An electrostatic loudspeaker requires a high voltage DC bias power supply to bias the stators and diaphragms of electrostatic speakers. A self biased power supply eliminates the need for an external power supply by deriving a high voltage bias from the stator AC signal voltages which have been rectified and run from a high voltage tap and/or through a voltage multiplier which has a voltage limiting means.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: January 2, 2007
    Assignee: American Technology Corporation
    Inventors: Jeevan G. Bank, James J. Croft, III
  • Signal derived bias supply for electrostatic loudspeakers
    Publication number: 20040066942
    Abstract: An electrostatic loudspeaker requires a high voltage DC bias power supply to bias the stators and diaphragms of electrostatic speakers. A self biased power supply eliminates the need for an external power supply by deriving a high voltage bias from the stator AC signal voltages which have been rectified and run from a high voltage tap and/or through a voltage multiplier which has a voltage limiting means.
    Type: Application
    Filed: September 26, 2003
    Publication date: April 8, 2004
    Applicant: American Technology Corporation
    Inventors: Jeevan G. Bank, James J. Croft
  • Power amplification for parametric loudspeaker
    Publication number: 20040047477
    Abstract: A power amplifier for a parametric loudspeaker system which utilizes switch-mode power conversion to increase efficiency. The power amplifier is configured to coordinate the switching frequency of the amplifier with the carrier frequency of the parametric loudspeaker system, so a lower switching frequency may be used even though the power amplifier must amplify ultrasonic signals. The amplifier can be further optimized to counteract the reactance of the transducer load at the carrier frequency.
    Type: Application
    Filed: October 3, 2003
    Publication date: March 11, 2004
    Inventors: Jeevan G. Bank, James J. Croft lll
  • Signal derived bias supply for electrostatic loudspeakers
    Patent number: 6628791
    Abstract: An electrostatic loudspeaker requires a high voltage DC bias power supply to bias the stators and diaphragms of electrostatic speakers. A self biased power supply eliminates the need for an external power supply by deriving a high voltage bias from the stator AC signal voltages which have been rectified and run from a high voltage tap and/or through a voltage multiplier which has a voltage limiting means.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: September 30, 2003
    Assignee: American Technology Corporation
    Inventors: Jeevan G. Bank, James J. Croft, III