Patent application number | Description | Published |
20110075287 | System and method for map detector for symbol based error correction codes - A system for decoding data includes a symbol based error correction code device. The error correction code device includes a channel detector configured to generate probability mass function (PMF) information. The error correction code device further includes a decoder coupled to the channel detector. The decoder is configured to use the PMF information from the channel detector to perform an error correction code operation. The decoder also is configured to generate PMF information. The channel detector is configured to receive extrinsic PMF information in a turbo equalization scheme. | 03-31-2011 |
20110197112 | Max-log-map equivalence log likelihood ratio generation soft Viterbi architecture system and method - A modified soft output Viterbi algorithm (SOVA) detector receives a sequence of soft information values and determines a best path and an alternate path for each soft information value and further determines, when the best and alternate paths lead to the same value for a given soft information value, whether there is a third path departing from the alternate path that leads to an opposite decision with respect to the best path for a given soft information value. The SOVA detector then considers this third path when updating the reliability of the best path. The modified SOVA detector achieves max-log-map equivalence effectively through the Fossorier approach and includes modified reliability metric units for the first N stages of the SOVA detector, where N is the memory depth of a given path, and includes conventional reliability metric units for the remaining stages of the detector. | 08-11-2011 |
20120036395 | DETECTING DATA-WRITE ERRORS - An embodiment of a data read path includes recovery and decoder circuits. The recovery circuit is operable to recover coded data from a storage medium, and the decoder circuit is operable to detect, in the recovered data, a write error that occurred during a writing of the coded data to the storage medium. For example, such an embodiment may allow detection of a write error that occurred while writing data to a bit-patterned storage medium. | 02-09-2012 |
20120036414 | RENDERING DATA WRITE ERRORS DETECTABLE - An embodiment of a data write path includes encoder and write circuits. The encoder circuit is operable to code data so as to render detectable a write error that occurs during a writing of the coded data to a storage medium, and the write circuit is operable to write the coded data to the storage medium. For example, such an embodiment may allow rendering detectable a write error that occurs while writing data to a bit-patterned storage medium. | 02-09-2012 |
20140240863 | MAX-LOG-MAP EQUIVALENCE LOG LIKELIHOOD RATIO GENERATION SOFT VITERBI ARCHITECTURE SYSTEM AND METHOD - A modified soft output Viterbi algorithm (SOVA) detector receives a sequence of soft information values and determines a best path and an alternate path for each soft information value and further determines, when the best and alternate paths lead to the same value for a given soft information value, whether there is a third path departing from the alternate path that leads to an opposite decision with respect to the best path for a given soft information value. The SOVA detector then considers this third path when updating the reliability of the best path. The modified SOVA detector achieves max-log-map equivalence effectively through the Fossorier approach and includes modified reliability metric units for the first N stages of the SOVA detector, where N is the memory depth of a given path, and includes conventional reliability metric units for the remaining stages of the detector. | 08-28-2014 |
Patent application number | Description | Published |
20110060440 | METHOD AND A SYSTEM FOR PROPAGATING A SCALING MODE IN A PRODUCTION PROCESS - A method and a system propagate a scaling mode in a production process controlled and executed by a manufacturing executing system (MES). The method includes the steps of providing a production request in terms of an initial quantity of a predetermined product to be produced, identifying the predetermined product by a predetermined production rule thereby dividing the production rule in a number of segment requirements that represent production actions, and defining within the segment requirements resources required to produce the required quantity. A rescaling attribute is defined and is aligned with each of the resources in a production request tree. An interface to the MES is used to update the quantity of the predetermined product to be produced and to recalculate in response to the update, the resources required to produce the updated quantity by applying a rescaling factor calculated from the initial quantity and the updated quantity. | 03-10-2011 |
20110224814 | SYSTEM AND METHOD FOR CONTROLLING A MANUFACTURING PROCESS - A method and a system control a manufacturing process of a plant via a MES system. The MES system is provided with a catalogue of a tool model, the catalogue of the tool model contains tool entities and tool methods on the tool entities. The tool entities contain engineering-time tool entities and run-time tool entities and the tool methods contain engineering-time tool methods and run-time tool methods. At engineering time or at run time, via a tool manager, the tool model catalogue is exposed and information on the tool model data is stored in a database. At engineering time, the specific engineering-time tool entities are defined by invoking engineering-time tool methods. At run time the specific tool entities are instantiated into run-time tool objects and the manufacturing process is controlled relative to physical plant tools by invoking the run-time tool methods on the run-time tool objects. | 09-15-2011 |
20140114923 | METHOD, SYSTEM, AND COMPUTER READABLE MEDIUM FOR LONG TERM ARCHIVING OF DATA IN A MES SYSTEM - A method transfers data to be archived from a runtime database into an archive database. A temporary database acts as a buffer database for a selected data record set for archiving. For each table of the runtime table subset, the selected record subset to be archived is copied into its corresponding table of the temporary table set. For each table of the temporary table set, the selected record subset to be archived is copied into its corresponding table of the archive table subset. For each table of the temporary table set, a temporary deletion table containing a set of primary keys of the records to be deleted from the runtime database is created. In the runtime database, for each runtime table having a corresponding temporary deletion table of the set of temporary deletion tables, deleting records having a primary key matching the primary key set of its corresponding temporary table. | 04-24-2014 |