Patents by Inventor Kathleen J. P. Philips

Kathleen J. P. Philips 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).

  • Device for amplifying digital signals
    Patent number: 6140875
    Abstract: The device for amplifying digital signals includes an input electrode (10) for receiving a digital signal. The device further includes a subtraction unit (12) for subtracting at least two signals from each other, and the input electrode (10) is coupled to a first input (11) of the subtraction unit (12). The device also includes a time-continuous loop filter (14) coupled to an output of the subtraction unit (12), and a time-continuous comparator (16) and a switching amplifier (18) which are coupled in cascade to the time-continuous loop filter. The device additionally includes an output electrode (20) which is coupled to an output (22) of the switching amplifier (18). This output (22) of the switching amplifier (18) is also coupled to a second input (13) of the subtraction unit (12).
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: October 31, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Johannes A. T. M. Van Den Homberg, Kathleen J. P. Philips