Patents by Inventor Patrick Lampin

Patrick Lampin 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).

  • Patent number: 7856030
    Abstract: In a telecommunication system adapted to exchange n-bit frames according to a dynamic time division multiplexing access method for a maximum of N accessible channels, the use of a shadow time slot assignment table is eliminated by use of a circuit that includes (a) an n×p memory block to store a time slot assignment table which describes the different time slot assignments by specifying which logical channel each bit position of an n-bit frame belongs to, (b) a register having N fields with a granularity of one bit, each bit indicates the status of the corresponding logical channel associated thereto, and (c) a logic circuit connected to the memory block and register that enables or disables the transmission of the logical channel identifier to a time slot assignor depending on the status bit value.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: December 21, 2010
    Assignee: International Business Machines Corporation
    Inventors: Patrick Lampin, Catherine Godefroy, Bernard Desrosiers, Yves Langlois
  • Publication number: 20080253404
    Abstract: In a telecommunication system adapted to exchange n-bit frames according to a dynamic time division multiplexing access method for a maximum of N accessible channels, the use of a shadow time slot assignment table is eliminated by use of a circuit that includes (a) an n×p memory block to store a time slot assignment table which describes the different time slot assignments by specifying which logical channel each bit position of an n-bit frame belongs to, (b) a register having N fields with a granularity of one bit, each bit indicates the status of the corresponding logical channel associated thereto, and (c) a logic circuit connected to the memory block and register that enables or disables the transmission of the logical channel identifier to a time slot assignor depending on the status bit value.
    Type: Application
    Filed: June 25, 2008
    Publication date: October 16, 2008
    Applicant: International Business Machines Corporation
    Inventors: Patrick Lampin, Catherine Godefroy, Bernard Desrosiers, Yves Langlois
  • Patent number: 7415033
    Abstract: In a telecommunication system adapted to exchange n-bit frames according to a dynamic time division multiplexing access method for a maximum of N accessible channels, the use of a shadow time slot assignment table is eliminated by use of a circuit that includes (a) an n×p memory block to store a time slot assignment table which describes the different time slot assignments by specifying which logical channel each bit position of an n-bit frame belongs to, (b) a register having N fields with a granularity of one bit, each bit indicates the status of the corresponding logical channel associated thereto, and (c) a logic circuit connected to the memory block and register that enables or disables the transmission of the logical channel identifier to a time slot assignor depending on the status bit value.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: August 19, 2008
    Assignee: International Business Machines Corporation
    Inventors: Patrick Lampin, Catherine Godefroy, Bernard Desrosiers, Yves Langlois
  • Publication number: 20050053027
    Abstract: The invention relates to a telecommunication system split in a plurality of subsystems that is adapted to exchange n-bit frames there between according to the dynamic time division multiplexing (TDM) access method. According to that method, the time is split in time slots, each one corresponding to one among N logical channels, wherein N is the maximum number of logical channels that can be simultaneously opened. To each logical channel (X, . . . ) is associated an identifier (LC X, . . . ) coded on p bits. In accordance with the present invention, the improved circuit (30) first comprises a n×p memory block (31) to store the time slot assignment (TSA) table which describes the different time slot assignments by specifying which logical channel each bit position of the n-bit TDM frame (Bit1 to Bitn) it belongs to.
    Type: Application
    Filed: September 4, 2003
    Publication date: March 10, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Patrick Lampin, Catherine Godefroy, Bernard Desrosiers, Yves Langlois