Activevideo Networks, Inc.

Tag Networks, Inc.

Ulrich Sigmund

Robert Craig

Clifford Wayne Mercer

Stefan Herr

A method and related system of generating a frame of video is disclosed. In the method, a request is received. For instance, the request may initiate a video game. A motion search between an object in a subsequent frame of video and the object in a current frame of video is performed. A pre-determined motion vector for the object is selected. The object in the subsequent frame of video may correspond to a set of pre-encoded macro-blocks and the performing the motion search may include searching a corresponding set of macro-blocks associated with the current frame of video. The pre-encoded macro-blocks may be pre-encoded prior to the request. The motion vector may be pre-determined prior to the request.

Video game system using pre-generated motion vectors

A method and related system of generating a frame of video is disclosed. In the method, a current frame of video is transmitted. A command corresponding to an action associated with a shifting of an image in the frame of video is received. A subsequent frame of video is transmitted in accordance with the received command, including transmitting at least two slices of video information corresponding to the shifting. Each slice may include an intra-coded macro-block having additional image information at an edge of the frame of video and at least two predictive macro-blocks, and at least one of the predictive macro-blocks includes a motion vector corresponding to the shifting of the image in the frame of video.

Video game system having an infinite playing field

A method and related system of generating a frame of video is disclosed. In the method, a request is received and a frame of video is generated using a plurality of pre-encoded macro-blocks. Generating the frame of video includes assigning the plurality of pre-encoded macro-blocks to respective positions in a grid. The frame of video may be compatible with an MPEG compression standard. The plurality of pre-encoded macro-blocks are pre-encoded prior to the request.

Video game system using pre-encoded macro-blocks and a reference grid

A method and related system of encoding audio is disclosed. In the method, data representing a plurality of independent audio signals is accessed. The data representing each respective audio signal comprises a sequence of source frames. Each frame in the sequence of sources frames comprises a plurality of audio data copies. Each audio data copy has an associated quality level that is a member of a predefined range of quality levels, ranging from a highest quality level to a lowest quality level. The plurality of source frame sequences is merged into a sequence of target frames that comprise a plurality of target channels. Merging corresponding source frames into a respective target frame includes selecting a quality level and assigning the audio data copy at the selected quality level of each corresponding source frame to at least one respective target channel.

Video game system using pre-encoded digital audio mixing

A computer-implemented method of encoding audio includes accessing a plurality of independent audio source streams, each of which includes a sequence of source frames. Respective source frames of each sequence include respective pluralities of pulse-code modulated audio samples. Each of the plurality of independent audio source streams is separately encoded to generate a plurality of independent encoded streams, each of which corresponds to a respective independent audio source stream. The encoding includes, for respective source frames, converting respective pluralities of pulse-code modulated audio samples to respective pluralities of floating-point frequency samples that are divided into a plurality of frequency bands. An instruction to mix the plurality of independent encoded streams is received; in response, respective floating-point frequency samples of the independent encoded streams are combined. An output bitstream is generated that includes the combined respective floating-point frequency samples.

Video game system with mixing of independent pre-encoded digital audio bitstreams

A method and related system of generating a frame of video is disclosed. In the method, a request is received. The frame of video is generated using a plurality of pre-encoded macro-blocks. The frame of video is compatible with an MPEG compression standard. The plurality of pre-encoded macro-blocks are pre-encoded prior to the request. In some embodiments, the request initiates a video game.

Video game system using pre-encoded macro-blocks

In a method of transmitting a frame of video, a number of bits corresponding to a frame of video is determined. A length of time needed to transmit the number of bits is determined and is compared with a length of time corresponding to a frame period. A frame period may correspond to an inverse of an average frame update rate. If the length of time exceeds the length of time corresponding to the frame period, one or more P-frames including a plurality of empty macro-blocks may be transmitted and the frame of video may then be transmitted over period of time exceeding one frame period. In some cases, the transmission of the frame of video may equal two or more frame periods. The transmitting may include transmitting an instruction for setting a latency in a client device to less than 50 ms.

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Waldkirch, Germany

Ulrich Sigmund