Texas Instruments Corporation

Sreenivas Kothandaraman

Thomas N Millikan

Joseph R Zbiciak

Martin Austin Wand

Charles E McCallum

Michael Andrew Hannah

Jennifer L H Webb

Paul Bastian Fernandez

Video encoding (such as H.263, MPEG-4, H.264/AVC) modifies TMN5-type rate control frame skipping and quantization parameter updating according to buffer fullness levels with I-frame initial quantization parameter values depend upon quantization parameter value of prior P-frames but also has within I-frame prediction and parameter increase to avoid excessive bits. And variable input frame rate is accommodated by adjusting buffer fullness measures. The quantization also applies to image compression.

Video coding rate control

A method to record high frame rate video, compatible with existing industry standards, that permits selecting either slow-motion playback or true speed playback with synchronized audio.

System and method for recording high frame rate video, replaying slow-motion and replaying normal speed with audio-video synchronization

Rotation in the storage domain is a one-one function with the domain equal to the range. This permits an image to be rotated in place. Each image size implies at least one garland of closed chains of pixels. Each image includes a spanning set of these garlands. Rotation in place moves each pixel to the next location on its garland. On completion of a garland by return to the initial pixel, pixels on the next garland are moved. Image rotation is complete after all the garlands have been traversed.

In place rotation of images for low memory systems

Rotation in the storage domain is a one-one function with the domain equal to the range. This permits an image to be rotated in place. Each image size implies at least one garland of closed chains of tiles. Each image includes a spanning set of these garlands. Rotation in place moves each pixel to the next location on its garland. On completion of a garland by return to the initial tile, tiles on the next garland are moved. Image rotation is complete after all the garlands have been traversed. This invention first linearized the two-dimensional tiles sliding into groups of super-pixels at contiguous locations above the image buffer. The tiles are rotated in place. The shuffled tiles are delinearized into rectangular blocks and then re-pitched if needed.

Using super-pixels for efficient in-place rotation of images

A media player permits multiple compressed media files to be concurrently stored in memory interval to the media player. By concurrently buffering more than one compressed media file at a time, any mechanical disturbance that occurs during the playing of a file or between files will not cause a cessation of audio. Further, skipping ahead or in reverse is advantageously expedited.

Shock protection for compressed audio on a CD player

A method and apparatus for playing compressed audio compact discs in a CD player is provided in which compressed audio data is cached in the local memory of the CD player. If a sufficient amount of compressed audio data is cached in the local memory of the CD player, the CD player can be placed in a reduced power state, reducing the consumption of power by the loader of the CD player. The determination of whether a sufficient amount of compressed audio data is present in the local memory of the CD player is made on the basis of a comparison of the playback time of the unaccessed cached audio and the restart time of the CD player.

Method and apparatus for the reduction of power consumption in a compact disc player

A method and apparatus for constructing a file tree in a compact disc player from the file system of a compressed audio CD is disclosed. After determining the target sector for building the file tree of the CD player, the CD player reads into the memory of the CD player the target sector and a number of contiguous sectors following the target sector. After identifying a target sector, the CD player first determines if the target sector is cached in the memory of the CD player. If the target sector is cached in the memory of the CD player, the sector is retrieved from the CD player. If the target sector is not cached in the memory of the CD player, the target sector is retrieved from the file system of the CD, together with a number of sequential contiguous sectors following the target sector.

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Richardson, TX, United States of America

Sreenivas Kothandaraman