Time Warner Cable Enterprises LLC

Scott M Davis

Paul D Brooks

Tom Gonder

Glen Hardin

Greg Von Der Ahe

Nubia Castillo

In a switched digital video content-based network, wherein a head end obtains a first group of program streams and sends to a client only a subset of the program streams selected by subscribers in a neighborhood of the client, imminence and/or presence of a condition of inadequate bandwidth is determined. Responsive to the determining, a bit rate of at least one of the subset of the program streams selected by the subscribers in the neighborhood of the client is dynamically decreased by adjusting encoding thereof, while maintaining adequate quality for the at least one of the subset of the program streams selected by the subscribers in the neighborhood of the client, based on an objective quality measure, in order to address the imminence and/or presence of the condition of inadequate bandwidth.

Quality feedback mechanism for bandwidth allocation in a switched digital video system

Methods and apparatus for delivering emergency alert system message content to customer premise devices without requiring them to tune to an emergency message channel and having to encode information into frames of regular program content being delivered to customer premise devices, e.g., set top boxes, are described. An emergency management server receives emergency alert messages from a federal government system and generates emergency alert control messages which are sent to one or more switching devices located at one or more regional hubsites/headends to which the emergency alert message applies. The emergency alert control message instructs the switching device to output an emergency alert content stream in place of a standard program. The switching device outputs the emergency content message stream in place of the standard program content to, e.g., a QAM modulator, which modulates the content stream on the frequency being used to deliver the standard program content being replaced.

Emergency alert system methods and apparatus

A method is provided which is suitable for implementation in a switched digital video content-based network, wherein a head end obtains a first group of program streams and sends to a client only a subset of the program streams selected by subscribers in a neighborhood of the client. At least one of imminence and presence of a condition of inadequate bandwidth is determined. Responsive to the determining of the at least one of imminence and presence of the condition of inadequate bandwidth, a bit rate of at least one of the subset of the program streams selected by the subscribers in the neighborhood of the client is dynamically decreased by adjusting encoding thereof, while maintaining adequate quality for the at least one of the subset of the program streams selected by the subscribers in the neighborhood of the client, based on an objective quality measure, in order to address the at least one of imminence and presence of the condition of inadequate bandwidth.

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Tega Cay, SC, United States of America

Scott M Davis