Patents by Inventor Michael E. Certain

Michael E. Certain 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: 20110291894
    Abstract: A multiple-element antenna for a wireless communication device is provided. The antenna comprises a first antenna element having a first operating frequency band and a floating antenna element positioned adjacent the first antenna element to electromagnetically couple to the first antenna element. The floating antenna element is configured to operate in conjunction with the first antenna element within a second operating frequency band. A feeding port connected to the first antenna element connects the first antenna element to communications circuitry and exchanges communication signals in both the first operating frequency band and the second operating frequency band between the multiple-element antenna and the communications circuitry. In a wireless mobile communication device having a transceiver and a receiver, the feeding port is connected to both the transceiver and the receiver.
    Type: Application
    Filed: August 8, 2011
    Publication date: December 1, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Yihong Qi, Ying Tong Man, Michael E. Certain, Perry Jarmuszewski
  • Publication number: 20080246668
    Abstract: A multiple-element antenna for a wireless communication device is provided. The antenna comprises a first antenna element having a first operating frequency band and a floating antenna element positioned adjacent the first antenna element to electromagnetically couple to the first antenna element. The floating antenna element is configured to operate in conjunction with the first antenna element within a second operating frequency band. A feeding port connected to the first antenna element connects the first antenna element to communications circuitry and exchanges communication signals in both the first operating frequency band and the second operating frequency band between the multiple-element antenna and the communications circuitry. In a wireless mobile communication device having a transceiver and a receiver, the feeding port is connected to both the transceiver and the receiver.
    Type: Application
    Filed: June 13, 2008
    Publication date: October 9, 2008
    Inventors: Yihong Qi, Ying Tong Man, Michael E. Certain, Perry Jarmuszewski
  • Patent number: 7400300
    Abstract: A multiple-element antenna for a wireless communication device is provided. The antenna comprises a first antenna element having a first operating frequency band and a floating antenna element positioned adjacent the first antenna element to electromagnetically couple to the first antenna element. The floating antenna element is configured to operate in conjunction with the first antenna element within a second operating frequency band. A feeding port connected to the first antenna element connects the first antenna element to communications circuitry and exchanges communication signals in both the first operating frequency band and the second operating frequency band between the multiple-element antenna and the communications circuitry. In a wireless mobile communication device having a transceiver and a receiver, the feeding port is connected to both the transceiver and the receiver.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: July 15, 2008
    Assignee: Research In Motion Limited
    Inventors: Yihong Qi, Ying Tong Man, Michael E. Certain, Perry Jarmuszewski
  • Patent number: 7148846
    Abstract: A multiple-element antenna for a wireless communication device is provided. The antenna comprises a first antenna element having a first operating frequency band and a floating antenna element positioned adjacent the first antenna element to electromagnetically couple to the first antenna element. The floating antenna element is configured to operate in conjunction with the first antenna element within a second operating frequency band. A feeding port connected to the first antenna element connects the first antenna element to communications circuitry and exchanges communication signals in both the first operating frequency band and the second operating frequency band between the multiple-element antenna and the communications circuitry. In a wireless mobile communication device having a transceiver and a receiver, the feeding port is connected to both the transceiver and the receiver.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: December 12, 2006
    Assignee: Research In Motion Limited
    Inventors: Yihong Qi, Ying Tong Man, Michael E. Certain, Perry Jarmuszewski