Abstract: A method and apparatus for rapidly downloading large files over a broadband communications link to a user segments the file into multiple segments and assigns the segments to be transmitted over a plurality of in-band or out-of-band channels. The segments are then carouseled on the assigned channels. Optionally, the segmenting algorithm may optimize the download time based on: file size, unused bandwidth per multiplex, the number of available multiplexes, or channels most viewed during the download period. The optimization program can begin the download process employing all available channels. Subsequently, based on acknowledgements regarding maximum successfully received segments, the optimization program can then reallocate the unsent segments among these channels.

Abstract: An improved electronic article security system is employed for detecting the presence of a security tag within a detection zone. The system includes a transmitter for generating electromagnetic energy and, in the disclosed embodiment, a single antenna for emitting electromagnetic energy received from the transmitter to establish an electromagnetic field within the detection zone and for sensing disturbances within the electromagnetic field, including disturbances resulting from a security tag within the detection zone. A receiver is provided for processing signals from the antenna relating to sensed disturbances and for providing output signals. A data processing and control section analyzes the output signals from the receiver and determines whether a sensed disturbance within the electromagnetic field is caused by the presence of a security tag within the detection zone.