Patents by Inventor Thomas Zwick

Thomas Zwick 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: 20060001572
    Abstract: Printed antenna devices are provided, which can operate at RF and microwave frequencies, for example, while simultaneously providing antenna performance characteristics such as high gain/directivity/radiation efficiency, high bandwidth, hemispherical radiation patterns, impedance, etc., that render the antennas suitable for voice communication, data communication or radar applications, for example. Further, apparatus are provided for integrally packaging such printed antenna devices with IC (integrated circuit) chips (e.g., transceiver) to construct IC packages for, e.g., wireless communications applications.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 5, 2006
    Inventors: Brian Gaucher, Duixian Liu, Ullrich Pfeiffer, Thomas Zwick
  • Patent number: 6978013
    Abstract: A device for the DC-decoupled connection of a telephone line to a signal processing device at the subscriber end of the telephone line is disclosed. The device exhibits a first circuit which is connected to the telephone line, a second circuit which is connected to the signal processing device, and a transformer which exhibits a first and a second winding, the first winding being connected to the first circuit and the second winding being connected to the second circuit and the first and second winding being DC-decoupled from one another. The device is characterized by the fact that the first circuit exhibits a hybrid circuit for separating the signals of the telephone line into a first signal path which extends from the telephone line to the signal processing device, and into a second signal path which extends from the signal processing device to the telephone line.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: December 20, 2005
    Assignee: Infineon Technologies AG
    Inventor: Herm Thomas Zwick
  • Publication number: 20050122265
    Abstract: Antennas are provided which are constructed using one or more conductive via stubs as radiating elements formed in a substrate. The antennas can be integrally packaged with IC chips (e.g., IC transceivers, receivers, transmitters, etc.) to build integrated wireless or RF (radio frequency) communications systems.
    Type: Application
    Filed: December 9, 2003
    Publication date: June 9, 2005
    Applicant: International Business Machines Corporation
    Inventors: Brian Gaucher, Duixian Liu, Ullrich Rudolf Pfeiffer, Thomas Zwick
  • Publication number: 20050048943
    Abstract: An off-chip signal is provided to a differential branch-line directional coupler implemented entirely on-chip. The coupler produces differential quadrature signals, which are then buffered and applied to a quadrature mixer. The coupler is implemented entirely on-chip using microstrip transmission lines. The coupler is made up of a plurality of rings and a plurality of underpasses connecting ports of the rings, wherein each of the plurality of rings is made up of four branch lines, and each branch line having an electrical length of one-quarter wavelength at the center design frequency. Coupling between the plurality of branch lines of the rings may be varied.
    Type: Application
    Filed: September 2, 2003
    Publication date: March 3, 2005
    Applicant: International Business Machines Corporation
    Inventors: Brian Floyd, Ullrich Pfeiffer, Scott Reynolds, Thomas Zwick