Patents by Inventor Gunnar Arvid Bjornstrom

Gunnar Arvid Bjornstrom 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).

  • High margin notification method and apparatus
    Patent number: 6954642
    Abstract: In a mobile communications system 10, a message is sent to a mobile terminal 16 which transmits an acknowledgement signal if the message is received. If the system 10 does not detect an acknowledgement signal, it transmits a high margin notification signal to the mobile terminal 16 to notify the terminal that an attempt was made to send the message. When the mobile terminal 16 has received a notification signal and subsequently comes within range of lower margin signals from the system, it sends a registration signal to the system. The system may then retransmit the message to the mobile terminal 16.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: October 11, 2005
    Assignee: Inmarsat, Ltd.
    Inventors: Paul Chambers, Charles Chambers, Gunnar Arvid Bjornstrom
  • High margin notification method and apparatus
    Patent number: 6763240
    Abstract: In a mobile communications system 10, a message is sent to a mobile terminal 16 which transmits an acknowledgement signal if the message is received. If the system 10 does not detect an acknowledgement signal, it transmits a high margin notification signal to the mobile terminal 16 to notify the terminal that an attempt was made to send the message. When the mobile terminal 16 has received a notification signal and subsequently comes within range of lower margin signals from the system, it sends a registration signal to the system. The system may then retransmit the message to the mobile terminal 16.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: July 13, 2004
    Assignee: Inmarsat Ltd.
    Inventors: Paul Chambers, Charles Chambers, Gunnar Arvid Bjornstrom
  • High margin notification method and apparatus
    Publication number: 20020123347
    Abstract: In a mobile communications system 10, a message is sent to a mobile terminal 16 which transmits an acknowledgement signal if the message is received. If the system 10 does not detect an acknowledgement signal, it transmits a high margin notification signal to the mobile terminal 16 to notify the terminal that an attempt was made to send the message. When the mobile terminal 16 has received a notification signal and subsequently comes within range of lower margin signals from the system, it sends a registration signal to the system. The system may then retransmit the message to the mobile terminal 16.
    Type: Application
    Filed: May 1, 2002
    Publication date: September 5, 2002
    Applicant: International Mobile Satellite Organization
    Inventors: Paul Chambers, Charles Chambers, Gunnar Arvid Bjornstrom