Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2011-07-19
2011-07-19
Duong, Frank (Department: 2474)
Multiplex communications
Diagnostic testing
Determination of communication parameters
Reexamination Certificate
active
07983186
ABSTRACT:
A system identifies when received packets are lost at a node in a multi-node processing chain. The system processing chain may include a gantry interface module for receiving coincident event data from a PET (Positron Emission Tomography) detector array, a DMA (direct memory access) rebinner card, and a transmission line coupled between the gantry interface module and the DMA card. FPGA and FIFO elements in each processing portion receive packets that may be lost if there is insufficient FIFO capacity. Lost packets are marked, discarded, and counted. At specified intervals, set in accordance with a threshold number of packets received a lost tally data packet is generated that includes count information for lost packets. The lost tally data packet is forwarded downstream when sufficient storage capacity exists.
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Jones et al, PET Gantry Simulation: Concepts and Methods for Inexpensively Reproducing the PET Data Acquisition Environment Using a Single PC with the PDT Card, IEEE, 5 pages, 2007.
Breeding John E.
Casey Michael E.
Everman Jimmy
Jones William F.
Luk Wing K.
Duong Frank
Kendall Peter L.
Siemens Medical Solutions USA , Inc.
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