Patents by Inventor Timothy Michael Schaefer

Timothy Michael Schaefer 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).

  • Asynchronous communication system for remote monitoring of objects or an environment
    Patent number: 7830948
    Abstract: A system provides for remote monitoring using asynchronous code division multiple access (CDMA) communication techniques between a base station and one or more transponders. Each transponder is attached or otherwise associated with an object or an environment to be monitored. Upon receipt of an interrogation signal, a transponder generates and transmits a coded transponder signal containing the monitored data. The coded transponder signal is generated using a spreading code. Each transponder is associated with a unique, mutually exclusive set of spreading codes. Each spreading code is based on a unique transponder address and the monitored data to be sent. A detector asynchronously monitors received signals for any of the available spreading codes. Once the detector detects a particular spreading code, the base station can identify the source transponder and extract the monitored data.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: November 9, 2010
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Timothy Michael Schaefer, Jonathan Darrel Coker, Rick Allen Philpott, Edward Brian Welch, David R. Holmes, III
  • ASYNCHRONOUS COMMUNICATION SYSTEM FOR REMOTE MONITORING OF OBJECTS OR AN ENVIRONMENT
    Publication number: 20100066506
    Abstract: A system provides for remote monitoring using asynchronous code division multiple access (CDMA) communication techniques between a base station and one or more transponders. Each transponder is attached or otherwise associated with an object or an environment to be monitored. Upon receipt of an interrogation signal, a transponder generates and transmits a coded transponder signal containing the monitored data. The coded transponder signal is generated using a spreading code. Each transponder is associated with a unique, mutually exclusive set of spreading codes. Each spreading code is based on a unique transponder address and the monitored data to be sent. A detector asynchronously monitors received signals for any of the available spreading codes. Once the detector detects a particular spreading code, the base station can identify the source transponder and extract the monitored data.
    Type: Application
    Filed: November 20, 2009
    Publication date: March 18, 2010
    Applicant: Mayo Foundation for Medical Education and Research
    Inventors: Timothy Michael Schaefer, Jonathan Darrel Coker, Rick Allen Philpott, Edward Brian Welch, David R. Holmes, III
  • Asynchronus communication system for remote monitoring of objects or an environment
    Patent number: 7643536
    Abstract: A system provides for remote monitoring using asynchronous code division multiple access (CDMA) communication techniques between a base station and one or more transponders. Each transponder is attached or otherwise associated with an object or an environment to be monitored. Upon receipt of an interrogation signal, a transponder generates and transmits a coded transponder signal containing the monitored data. The coded transponder signal is generated using a spreading code. Each transponder is associated with a unique, mutually exclusive set of spreading codes. Each spreading code is based on a unique transponder address and the monitored data to be sent. A detector asynchronously monitors received signals for any of the available spreading codes. Once the detector detects a particular spreading code, the base station can identify the source transponder and extract the monitored data.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: January 5, 2010
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Timothy Michael Schaefer, Jonathan Darrel Coker, Rick Allen Philpott, Edward Brian Welch, David R. Holmes, III