Patents by Inventor Jaspal Bharj

Jaspal Bharj 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).

  • Lineariser
    Patent number: 7057464
    Abstract: The present invention relates to a lineariser for use with an amplifier. The lineariser comprises an input means and an output means. Input matching means are provided to receive an input signal. A transistor is provided, said transistor being arranged to operate substantially close to a switched on condition. The transistor is arranged to apply a non-linear gain to said input signal. The output means output the non-linear gain signal to said amplifier. The lineariser may be used with a RF power amplifier. The lineariser may be used in elements of a communication system.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: June 6, 2006
    Assignee: Nokia Corporation
    Inventor: Jaspal Bharj
  • Amplifier linearisation
    Patent number: 6985032
    Abstract: The present invention relates to a lineariser for use with an amplifier and to a method of linearising an amplifier. The lineariser comprises an input to receive an input signal and an output for outputting an adjusted signal. A gain variations adjustment means are provided for adjusting amplitude dependent gain variations of the signal. A phase variations adjustment means are provided for adjusting amplitude dependent phase variations of the signal. Said gain and phase variations adjustment means are adapted to be individually adjustable elements on the signal path between said input and output. A variable gain amplifier is provided on the signal path between the gain variations adjustment means and phase variations adjustment means. The adjusted signal is then input to said amplifier.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: January 10, 2006
    Assignee: Nokia Corporation
    Inventors: Elias Pekonen, Andrzej Haczewski, Jaspal Bharj
  • Dual-mode transmitter
    Publication number: 20040116152
    Abstract: A method and circuitry for a transmitter is disclosed. The transmitter is adapted for transmission of signals based on at least two different transmission modes. In the method a signal to be transmitted in accordance with a selected transmission mode is input in a single path (1) comprising amplifier means (10). Based on the selected transmission mode, the waveform of the signal is shaped by combining at least two waveforms. The mode of at least one component on the signal path is switched between said at least two transmission modes by means of a switching circuit (50).
    Type: Application
    Filed: November 14, 2003
    Publication date: June 17, 2004
    Inventors: Basim Noori, Jaspal Bharj, Martin Goss
  • Lineariser
    Publication number: 20040012444
    Abstract: The present invention relates to a lineariser for use with an amplifier. The lineariser comprises an input means and an output means. Input matching means are provided to receive an input signal. A transistor is provided, said transistor being arranged to operate substantially close to a switched on condition. The transistor is arranged to apply a non-linear gain to said input signal. The output means output the non-linear gain signal to said amplifier. The lineariser may be used with a RF power amplifier. The lineariser may be used in elements of a communication system.
    Type: Application
    Filed: July 18, 2003
    Publication date: January 22, 2004
    Inventor: Jaspal Bharj