Abstract: Method and apparatus for encoding video is described. In one example, average of motion vectors for each of a plurality of blocks is maintained over a threshold number of inter-coded frames in the video. The running average of motion vectors for each of the plurality of blocks is compared to a threshold value. Each of the plurality of blocks the running average of which does not satisfy the threshold value is encoded using a first quantization parameter. Each of the plurality of blocks the running average of which satisfies the threshold value is encoded using a second quantization parameter. The second quantization parameter results in a coarser quantization of transformed coefficients than the first quantization parameter.

Abstract: Method and apparatus for encoding video is described. In one example, average of motion vectors for each of a plurality of blocks is maintained over a threshold number of inter-coded frames in the video. The running average of motion vectors for each of the plurality of blocks is compared to a threshold value. Each of the plurality of blocks the running average of which does not satisfy the threshold value is encoded using a first quantization parameter. Each of the plurality of blocks the running average of which satisfies the threshold value is encoded using a second quantization parameter. The second quantization parameter results in a coarser quantization of transformed coefficients than the first quantization parameter.

Abstract: A communication system is provided that ensures that a rich variety and complexity of network offerings may be experienced by users without overloading terminals and clients by offering user-centric network services. When a user device first registers with a network, the user device notifies the network of its client capabilities, such as video, VoIP, presence, and so on. Based on the client capabilities and further based on any user preferences, the network then announces, that is, offers to the user, a list of available services for the user to choose from. Network services and applications then may be downloaded and used only when the services and applications are needed or desired by users, thereby allowing a thin middleware layer and network customization.

Abstract: A plurality of secondary stations (10.sub.a through 10.sub.n) are coupled to a primary station (8) by way of a shared communication medium (15, 16). The secondary stations (10.sub.a through 10.sub.n) sends information to the primary channel on the upstream channel. The primary station sending information to the secondary stations (10.sub.a through 10.sub.n) on a downstream channel. The power level of a secondary station (10.sub.n) is set at the power level stored in secondary station memory (55). The secondary station (10.sub.n) transmits a message to the primary station on the upstream channel. The primary station (8) receives the message, determines the power level of the received message, and sets the power level of the secondary device to the nominal power level.