公开(公告)号：US20150093023A1

公开(公告)日：2015-04-02

申请号：US14042447

申请日：2013-09-30

Applicant: Apple Inc.

Inventor： Kenneth Greenebaum ,  Ian Hendry ,  Ian Ollmann ,  David Hayward ,  Brijesh Tripathi

IPC: G06T9/00 ,  H04N19/463 ,  H04N19/85

CPC classification number: H04N19/85 ,  G06T9/00 ,  G11B27/034 ,  H04N19/186 ,  H04N19/30 ,  H04N19/33 ,  H04N19/463 ,  H04N21/234327 ,  H04N21/2662 ,  H04N21/845

Abstract: Techniques are provided for encoding an extended image such that it is backwards compatible with existing decoding devices. An extended image format is defined such that the extended image format is consistent with an existing image format over the full range of the existing image format. Because the extended image format is consistent with the existing image format over the full range of the existing image format, additional image information that is included in an extended image can be extracted from the extended image. A base version of an image (expressed using the existing image format) may be encoded in a payload portion and the extracted additional information may be stored in a metadata portion of a widely supported image file format.

Abstract translation: 提供了用于对扩展图像进行编码的技术，使得其与现有的解码装置向后兼容。 定义扩展图像格式，使得扩展图像格式与现有图像格式的全部范围内的现有图像格式一致。 由于扩展图像格式与现有图像格式的全部范围内的现有图像格式一致，所以可以从扩展图像中提取包含在扩展图像中的附加图像信息。 图像的基本版本（使用现有图像格式表示）可以被编码在有效载荷部分中，并且所提取的附加信息可以存储在广泛支持的图像文件格式的元数据部分中。

公开(公告)号：US20130283290A1

公开(公告)日：2013-10-24

申请号：US13920320

申请日：2013-06-18

Applicant: Apple Inc.

Inventor： Ian Hendry ,  Anthony G. Sumpter

IPC: G06F9/54

CPC classification number: G06F9/54 ,  G06F9/3879 ,  G06F9/4812 ,  G06F9/5027 ,  G06F2209/509 ,  Y02D10/22 ,  Y02D10/24

Abstract: A technique for processing instructions in an electronic system is provided. In one embodiment, a processor of the electronic system may submit a unit of work to a queue accessible by a coprocessor, such as a graphics processing unit. The coprocessor may process work from the queue, and write a completion record into a memory accessible by the processor. The electronic system may be configured to switch between a polling mode and an interrupt mode based on progress made by the coprocessor in processing the work. In one embodiment, the processor may switch from an interrupt mode to a polling mode upon completion of a threshold amount of work by the coprocessor. Various additional methods, systems, and computer program products are also provided.

Abstract translation: 提供了一种用于处理电子系统中的指令的技术。 在一个实施例中，电子系统的处理器可以将工作单元提交到可由诸如图形处理单元的协处理器访问的队列。 协处理器可以处理来自队列的工作，并将完成记录写入可由处理器访问的存储器中。 电子系统可以被配置为基于协处理器在处理工作中进行的进行轮询模式和中断模式之间切换。 在一个实施例中，当由协处理器完成阈值工作量时，处理器可以从中断模式切换到轮询模式。 还提供了各种附加方法，系统和计算机程序产品。