Patents by Inventor Keith R. Edwards

Keith R. Edwards 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).

  • Receiver for receiving embedding OFDM in an CDMA systems
    Patent number: 8045936
    Abstract: Systems and methods of combining OFDM and CDMA signals are provided. An OFDM packet data channel is overlaid over CDMA transmissions. The channel is scheduled slotwise between multiple users. In some embodiments, there is a CDMA packet data channel which is scheduled together with the OFDM packet data channel.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: October 25, 2011
    Assignee: Ericsson AB
    Inventors: Shiquan Wu, Wen Tong, Peiying Zhu, Ming Jia, Hua Xu, Daniel Boudreau, Jianming Wu, Mo-Han Fong, Keith R. Edwards
  • System and method for embedding OFDM in CDMA systems
    Publication number: 20090074098
    Abstract: Systems and methods of combining OFDM and CDMA signals are provided. An OFDM packet data channel is overlaid over CDMA transmissions. The channel is scheduled slotwise between multiple users. In some embodiments, there is a CDMA packet data channel which is scheduled together with the OFDM packet data channel.
    Type: Application
    Filed: November 13, 2008
    Publication date: March 19, 2009
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: Shiquan Wu, Wen Tong, Peiying Zhu, Ming Jia, Hua Xu, Daniel Boudreau, Jianming Wu, Mo-Han Fong, Keith R. Edwards
  • Intravenous valproate for acute treatment of migraine headache
    Patent number: 7163689
    Abstract: The present invention features a novel therapy for effecting acute treatment of migraine headache. The therapy involves intravenous administration of valproate and is equal to and in some respects superior to previously-known therapies for abortive treatment of prolonged moderate to severe acute migraine headache.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: January 16, 2007
    Inventor: Keith R. Edwards
  • Intravenous valproate for acute treatment of migraine headache
    Patent number: 7141247
    Abstract: The present invention features a novel therapy for effecting acute treatment of migraine headache. The therapy involves intravenous administration of valproate and is equal to and in some respects superior to previously-known therapies for abortive treatment of prolonged moderate to severe acute migraine headache.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: November 28, 2006
    Inventor: Keith R. Edwards
  • Intravenous valproate for acute treatment of migraine headache
    Publication number: 20020156131
    Abstract: The present invention features a novel therapy for effecting acute treatment of migraine headache. The therapy involves intravenous administration of valproate and is equal to and in some respects superior to previously-known therapies for abortive treatment of prolonged moderate to severe acute migraine headache.
    Type: Application
    Filed: December 27, 2001
    Publication date: October 24, 2002
    Applicant: LAHIVE & COCKFIELD, LLP.
    Inventor: Keith R. Edwards
  • Bonding friction material to plated substrates
    Patent number: 4977986
    Abstract: A brake shoe or pad in which the back plate is zinc plated and a friction material preform is bonded directly to the zinc plated surface.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: December 18, 1990
    Assignee: Abex Corporation
    Inventor: Keith R. Edwards
  • Method of bonding friction material to plated substrates
    Patent number: 4976800
    Abstract: A method of manufacturing a brake shoe or pad in which the back plate is zinc plated and a friction material perform is bonded directly to the zinc plated surface.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: December 11, 1990
    Assignee: Abex Corporation
    Inventor: Keith R. Edwards