Patents by Inventor Rocky Caldwell

Rocky Caldwell 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).

  • Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals
    Patent number: 6842527
    Abstract: The power voltage supply for a power amplifier is switched between an operational full power mode and a reduced power mode by the switching of a dual state impedance device connected in series between the power amplifier and the power supply. A control circuit detects the level of a signal to be amplified by that amplifier and switches the impedance states thus reducing the power output capability of the power amplifier and placing the power amplifier into a reduced power mode. In one embodiment, the signal is produced by spectrally filtering with a low pass filter, with the cross-over frequency being adjustable. Additionally, the gain of the amplifier can be reduced for high level signals.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: January 11, 2005
    Assignee: Thomson Licensing, Inc.
    Inventor: Rocky Caldwell
  • Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals
    Patent number: 6766026
    Abstract: The power voltage supply for a power amplifier is switched between an operational full power mode and a reduced power mode by the switching of a dual state impedance device connected in series between the power amplifier and the power supply. A control circuit detects the level of a signal to be amplified by that amplifier and switches the impedance states thus reducing the power output capability of the power amplifier and placing the power amplifier into a reduced power mode. In one embodiment, the signal is produced by spectrally filtering with a low pass filter, with the cross-over frequency being adjustable. Additionally, the gain of the amplifier can be reduced for high level signals.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: July 20, 2004
    Assignee: Thomson Licensing, S.A.
    Inventor: Rocky Caldwell
  • Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals
    Publication number: 20020076067
    Abstract: The power voltage supply for a power amplifier is switched between an operational full power mode and a reduced power mode by the switching of a dual state impedance device connected in series between the power amplifier and the power supply. A control circuit detects the level of a signal to be amplified by that amplifier and switches the impedance states thus reducing the power output capability of the power amplifier and placing the power amplifier into a reduced power mode. In one embodiment, the signal is produced by spectrally filtering with a low pass filter, with the cross-over frequency being adjustable. Additionally, the gain of the amplifier can be reduced for high level signals.
    Type: Application
    Filed: December 15, 2000
    Publication date: June 20, 2002
    Inventor: Rocky Caldwell
  • Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals
    Publication number: 20020076063
    Abstract: The power voltage supply for a power amplifier is switched between an operational full power mode and a reduced power mode by the switching of a dual state impedance device connected in series between the power amplifier and the power supply. A control circuit detects the level of a signal to be amplified by that amplifier and switches the impedance states thus reducing the power output capability of the power amplifier and placing the power amplifier into a reduced power mode. In one embodiment, the signal is produced by spectrally filtering with a low pass filter, with the cross-over frequency being adjustable. Additionally, the gain of the amplifier can be reduced for high level signals.
    Type: Application
    Filed: December 15, 2000
    Publication date: June 20, 2002
    Inventor: Rocky Caldwell