Trueposition, Inc.

Argyle Data, Inc.

David I Gotwisner

Matthew Rabinowitz

Ju-Yong Do

Dimitri Rubin

Andy Lee

Alka Yamarti

Myvan Quoc

Raymond J Huetter

Craig A McIntyre

David I Cracknell

Craig A Mcintyre

In general, techniques are described for parallelizing a high-volume data stream using a data structure that enables lockless access by a multi-threaded application. In some examples, a multi-core computing system includes an application that concurrently executes multiple threads on cores of the system. The multiple threads include one or more send threads each associated with a different lockless data structure that each includes both a circular buffer and a queue. One or more receive threads serially retrieve incoming data from a data stream or input buffer, copy data blocks to one of the circular buffers, and push metadata for the copied data blocks to the queue. Each of the various send threads, concurrent to the operation of the receive threads, dequeues the next metadata from its associated queue, reads respective blocks of data from its associated circular buffers based on metadata information, and offloads the block to a server.

Multi-threaded, lockless data parallelization

An apparatus for location identification using broadcast wireless signal signatures includes a receiver to receive first measurements of a plurality of wireless television signals. The first measurements are made by a remote device receiving the plurality of wireless television signals. In addition, the apparatus includes a processor to select one or more of a plurality of possible locations of the remote device based on the first measurements and a plurality of associations each associating one of the possible locations with expected values. Moreover, the receiver receives second measurements of the wireless television signals made by one or more monitor units, and the processor generates the expected values for the first measurements and the associations based on the second measurements and the locations of the one or more monitor units.

Location identification using broadcast wireless signal signatures

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Castro Valley, CA, United States of America

David I Gotwisner