Abstract: Method and apparatus for distributing a content stream from a headend to a subscriber terminal is described. In one example, the content stream is processed at the headend to generate a sequence of instances having successively staggered reference frames. A request for the content streams is received from the subscriber terminal at an initial time. In response to the request, an instance from the sequence of instances having the first reference frame after the initial time is selected. The selected instance is transmitted towards the subscriber terminal.

Abstract: In a broadband communication network, a method (400) for delivering content to a consumer network device. The method includes: managing (402) an original data stream carrying the content, the original data stream having original recurring access units (“RAUs”) usable by the consumer network device to acquire the content; replicating (404) the original data stream to form a replicated data stream having replicated RAUs; offsetting the replicated data stream (and the replicated RAUs) relative to the original data stream by an amount of time; and arranging (408) for communication of the amount of time to the consumer network device. The amount of time is usable (410) by the consumer network device to determine a next available RAU from among at least one of the original RAUs and at least one of the replicated RAUs, and the next available RAU is usable by the consumer network device to acquire the content.

Abstract: A method and apparatus for providing an opportunistic data capability for an existing statistical multiplexing encoder platform, such as a multi-channel video data encoder. An Opportunistic Data Processor (ODP) is provided as a plug-in card or an external device that can be interfaced with an existing multi-channel encoder. The ODP communicates with a Quantization Level Processor (QLP) and Packet Multiplexer (PM) in the multi-channel encoder as if it was just another channel encoder. The ODP implements a special rate control scheme by encoding data and sending it to the PM only when a global Quantization Level (QL) indicates that spare bandwidth is available. Spare bandwidth is assumed to be available when the global QL is less than a threshold value. Moreover, the OPD sends a bandwidth need parameter to the QLP, as do the other channel encoders.