Patents by Inventor Tracy Xiaoming Ma

Tracy Xiaoming Ma 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: 8205141
    Abstract: A system and method are provided for generating virtual lane (VL) forward error correction (FEC) overhead (OH) in a communication multi-lane distribution (MLD) protocol transmitter, and for recovering data words from virtual lanes with FEC OH in an MLD protocol receiver. The transmission method accepts an Optical Transport Network (OTN) frame with n consecutively ordered payload chunks of data words, at a first data rate. Each payload chunk is assigned to a virtual lane data word (VLDW) in an MLD frame of n consecutively ordered VLDWs. The assignment order of payload chunks to VLDWs is rotated at the start of each MLD frame. VLDWs are joined into VLDW groups, where each VLDW group includes at least one VLDW. FEC blocks are calculated for VLDWs, creating ordered VL codewords (VLCWs). Then, the VLCWs are multiplexed to maintain a consistent assignment of VLCW order to physical transmission lanes and transmitted.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: June 19, 2012
    Assignee: Applied Micro Circuits Corporation
    Inventors: Francesco Caggioni, Tracy Xiaoming Ma
  • Patent number: 8195049
    Abstract: System and methods are provided, in an Optical Transport Network (OTN), for communicating asynchronous Tributary Slots (TSs) via a synchronous Optical Payload Transport Unit of level k (OTUk) interface. The transmission method accepts a plurality of TSs at a corresponding plurality of asynchronous data rates. The TSs are mapped, using a tangible memory medium, into pseudo-Optical channel Data Tributary Unit (ODTU) frames synchronized to a common clock. Then, the synchronized pseudo-ODTU frames can be interleaved into an OTUk frame, without the need of a phase-locked loop (PLL) or buffering.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: June 5, 2012
    Assignee: Applied Micro Circuits Corporation
    Inventors: Glen Miller, Tracy Xiaoming Ma
  • Patent number: 8050567
    Abstract: System and methods are provided, in an Optical Transport Network (OTN), for communicating asynchronous Tributary Slots (TSs) via a synchronous Optical Payload Transport Unit of level k (OTUk) interface. The transmission method accepts a plurality of TSs at a corresponding plurality of asynchronous data rates. The TSs are mapped, using a tangible memory medium, into pseudo-Optical channel Data Tributary Unit (ODTU) frames synchronized to a common clock. Then, the synchronized pseudo-ODTU frames can be interleaved into an OTUk frame, without the need of a phase-locked loop (PLL) or buffering.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: November 1, 2011
    Assignee: Applied Micro Circuits Corporation
    Inventors: Glen Miller, Tracy Xiaoming Ma
  • Publication number: 20100281343
    Abstract: A system and method are provided for generating virtual lane (VL) forward error correction (FEC) overhead (OH) in a communication multi-lane distribution (MLD) protocol transmitter, and for recovering data words from virtual lanes with FEC OH in an MLD protocol receiver. The transmission method accepts an Optical Transport Network (OTN) frame with n consecutively ordered payload chunks of data words, at a first data rate. Each payload chunk is assigned to a virtual lane data word (VLDW) in an MLD frame of n consecutively ordered VLDWs. The assignment order of payload chunks to VLDWs is rotated at the start of each MLD frame. VLDWs are joined into VLDW groups, where each VLDW group includes at least one VLDW. FEC blocks are calculated for VLDWs, creating ordered VL codewords (VLCWs). Then, the VLCWs are multiplexed to maintain a consistent assignment of VLCW order to physical transmission lanes and transmitted.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Inventors: Francesco Caggioni, Tracy Xiaoming Ma
  • Patent number: 7817642
    Abstract: A system and method are provided for aggregating Multimedia over Coax Alliance (MoCA) Medium Access Control (MAC) frames. The method sends a Multiframe Reservation Request (MRR) requesting a transmission time slot, and receives a grant in response to the MRR. Subsequent to sending the MRR, a plurality of MoCA MAC frames are accepted and assembled into a physical layer (PHY) burst packet that is transmitted in the granted time slot. A method is also provided for bundling client data packets into a MoCA MAC frame. The method sends a Bundledpacket Reservation Request (BRR) requesting a transmission time slot, and receives a grant in response to the BRR. Subsequent to sending the BRR, a plurality of client data packets are accepted and concatenated into a bundled MoCA MAC frame. The bundled MoCA MAC frame is transmitted in a PHY packet in the granted time slot.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: October 19, 2010
    Assignee: Applied Micro Circuits Corporation
    Inventors: Tracy Xiaoming Ma, Francesco Caggioni
  • Publication number: 20100074624
    Abstract: System and methods are provided, in an Optical Transport Network (OTN), for communicating asynchronous Tributary Slots (TSs) via a synchronous Optical Payload Transport Unit of level k (OTUk) interface. The transmission method accepts a plurality of TSs at a corresponding plurality of asynchronous data rates. The TSs are mapped, using a tangible memory medium, into pseudo-Optical channel Data Tributary Unit (ODTU) frames synchronized to a common clock. Then, the synchronized pseudo-ODTU frames can be interleaved into an OTUk frame, without the need of a phase-locked loop (PLL) or buffering.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 25, 2010
    Inventors: Glen Miller, Tracy Xiaoming Ma
  • Publication number: 20090010263
    Abstract: A system and method are provided for aggregating Multimedia over Coax Alliance (MoCA) Medium Access Control (MAC) frames. The method sends a Multiframe Reservation Request (MRR) requesting a transmission time slot, and receives a grant in response to the MRR. Subsequent to sending the MRR, a plurality of MoCA MAC frames are accepted and assembled into a physical layer (PHY) burst packet that is transmitted in the granted time slot. A method is also provided for bundling client data packets into a MoCA MAC frame. The method sends a Bundledpacket Reservation Request (BRR) requesting a transmission time slot, and receives a grant in response to the BRR. Subsequent to sending the BRR, a plurality of client data packets are accepted and concatenated into a bundled MoCA MAC frame. The bundled MoCA MAC frame is transmitted in a PHY packet in the granted time slot.
    Type: Application
    Filed: July 3, 2007
    Publication date: January 8, 2009
    Inventors: Tracy Xiaoming Ma, Francesco Cappioni