Improved approaches for delivering media programs to viewers (e.g., subscribers) are disclosed. The media programs are typically broadcast in accordance with a schedule. The media program can be delivered to viewers through multicast or unicast. According to one aspect, the media programs are buffered (e.g., cached) in a data packet format such that producing unicasts for particular viewers requires less computation and resources such that more concurrent unicasts are able to be effectively supported.

Method and system for providing time-shifted delivery of live media programs

The present invention is a biometric broadband gaming system and method that comprises a verification system, a broadband gaming system and a transactional system. The verification system operations include receiving a biometric input to ensure that a user is a registered player. The broadband gaming system operations include providing a game of skill or game of chance to a plurality of players communicating via different network access devices. The transactional system operations include managing transactions conducted by the verification system and the broadband gaming system.

Biometric broadband gaming system and method

Disclosed is a system for allowing on-demand delivery of data, such as MPEG-2 compressed video data, to a subscriber from a content server. The system utilizes a managed IP network that is coupled to the one or more content servers that allows the content servers to deliver data such as video, audio, and textual data with a guaranteed quality of service that is at least as good as broadcast quality service. The managed IP network is connected to a head end or other local cable service provider where video is delivered locally to subscribers. The IP transport data is translated to MPEG transport data, multiplexed onto an MPEG transport system, digitally modulated onto an rf carrier and up-converted to a specific frequency channel. The signal is then applied to the cable for delivery to the subscriber. Upstream signaling occurs through a set top box or computer that is connected to the cable and subsequently to a digital modulator/demodulator and ISP to a managed IP network 66. Low band signals can also be transmitted from the content servers back to the set top box or computer indicating confirmation of an order. Also, control signals such as stop, rewind, fast-forward, and slow can be transmitted back to the content server to control the transmission of data from the content server to the subscriber.

On-demand data system

A method for a client module to provide a channel selection request in a multimedia system begins by receiving an input signal from a client. The method continues by interpreting the input signal to determine type of signal. The method continues, when the type of signal is control information, by determining whether the control information relates to a local command or a system-level command. The method continues, when the control information relates to a system-level command, by processing the control information for conveyance to a multimedia server to produce a control message. The method continues by transmitting the control message to the multimedia server.

Channel selection in a multimedia system

A apparatus and method for effecting a distributed video on demand system is a local data network. A number of local processing units within the local network are utilized, with the local processing units being associated with system subscribers of the video on demand system. The local processing units include memories that are each configured to store video data. A database server in communication with local data network is further included for directing streamed delivery of the video data from certain ones of the local processing units storing particular video data to other local processing units in the local network that are requesting playback of the particular video data.

Distributed server video-on-demand system

An encoder to be located at the head end of a television program material distribution center. The encoder maps relatively large Ethernet addresses to smaller MPEG-2 address spaces by converting the Internet address to a number uniquely associated with program material. MPEG-2 frames created in this manner are placed in radio frequency slots within the frequency space occupied by a single analog television program. All types of Ethernet data, including Internet data, video program material from sources such as Microsoft NetShow Theater, digital audio and the like can all be converted to MPEG-2 bitstreams. This overcomes and reduces communications incompatibilities and complexities among set top boxes and existing head end because all digital set top boxes are designed to handle MPEG-2 data frames. The encoder provides the ability and necessary ingredient to provide dynamic linkage between Internet IP addresses and MPEG2 PID addresses permitting simultaneous connected operations between the Internet and Interactive TV programming accommodating interactive mediums spread across both environments. Several encoders may have radio frequency outputs stacked by a combiner and transmitted as a single wideband signal to build larger systems. The encoder can dynamically produce multiple content streams from a single stream from video servers or satellites, either time displaced or not, thereby reducing the costly bandwidth production requirements of video servers and satellites. This allows multiple threads of video program material to be transmitted simultaneously or multiple copies of the same thread to be transmitted with time delays between threads for either video-on-demand (VOD) or near-video-on-demand (NVOD) applications. The encoder dynamically balances bandwidth requirements between Internet, digital television and telephony applications by measuring actual bandwidth utilization and reallocating digital bandwidth and spectrum allocation automatically. This is implemented by the automatic spectrum allocation function and the digital multiplexing functions under firmware and software control and is facilitated by a closed loop feedback control algorithm.

Interactive digital program material encoder and system

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Interactive digital program material encoder and system