公开(公告)号：US08866646B2

公开(公告)日：2014-10-21

申请号：US13743544

申请日：2013-01-17

Applicant: Apple Inc.

Inventor： Jeffrey E. Frederiksen ,  Michael Frank

IPC: H03M7/30 ,  G06K9/36 ,  G06T9/00 ,  H04N9/67 ,  H04N19/146

CPC classification number: G06K9/36 ,  G06F2212/401 ,  G06T9/007 ,  H04N9/67 ,  H04N19/146

Abstract: In an embodiment, a compression unit is provided which may perform compression of images with low latency and relatively little hardware. Similarly, a decompression unit may be provided which may decompress the images with low latency and hardware. In an embodiment, the transmission of compressed coefficients may be performed using less than two passes through the list of coefficients. During the first pass, the most significant coefficients may be transmitted and other significance groups may be identified as linked lists. The linked lists may then be traverse to send the other significance groups. In an embodiment, a color space conversion may be made to permit filtering of fewer color components than might be possible in the source color space.

Abstract translation: 在一个实施例中，提供了压缩单元，其可以执行具有低延迟和相对较少硬件的图像的压缩。 类似地，可以提供可以以低延迟和硬件解压缩图像的解压缩单元。 在一个实施例中，可以使用少于两次通过系数列表来执行压缩系数的传输。 在第一次通过期间，可以发送最重要的系数，并且可以将其他重要组识别为链表。 然后可以遍历链接列表以发送其他重要组。 在一个实施例中，可以进行颜色空间转换以允许对源颜色空间中可能的颜色分量进行滤波。

公开(公告)号：US20140169693A1

公开(公告)日：2014-06-19

申请号：US13718442

申请日：2012-12-18

Applicant: APPLE INC.

Inventor： Albert C. Kuo ,  Jeffrey E. Frederiksen ,  Michael Frank

IPC: G06T9/00

CPC classification number: H04N19/174 ,  H04N19/436 ,  H04N19/635

Abstract: In an embodiment, a compression unit is provided which may perform compression of a pixel stream. Similarly, a decompression unit may be provided which may decompress the compressed pixel stream. The compression and decompression units may include a streaming wavelet transform, which may perform the wavelet transform through a pipeline of wavelet operations. Each section of the pipeline may perform a pass of the wavelet transform on the pixel stream, and the section may provide input to another section of the pipeline that performs a next pass of the wavelet transform. The transform may thus be performed on the fly as the pixels are received.

Abstract translation: 在一个实施例中，提供了可执行像素流的压缩的压缩单元。 类似地，可以提供可以解压缩压缩像素流的解压缩单元。 压缩和解压缩单元可以包括流小波变换，其可以通过小波操作的流水线执行小波变换。 流水线的每个部分可以在像素流上执行小波变换的通过，并且该部分可以向执行小波变换的下一遍的流水线的另一部分提供输入。 因此，可以在接收到像素时在飞行中执行变换。

公开(公告)号：US20140125556A1

公开(公告)日：2014-05-08

申请号：US14153275

申请日：2014-01-13

Applicant: Apple Inc.

Inventor： Wolfgang Roethig ,  Michael Frank

IPC: G06F3/14

CPC classification number: G06F3/1423 ,  G06F3/1438 ,  G09G2360/06

Abstract: In an embodiment, a display apparatus includes multiple physical interface circuits (PHYs) couple to respective displays. In a mirror mode, the PHYs may operate as masters. A primary master PHY may control a synchronization interface to one or more secondary master PHYs. The synchronization interface may include a start of frame signal that the primary master PHY may generate to indicate the beginning of a new frame. The secondary master PHYs may be configured to generate internal start of frame signals while independently processing the same display data as the primary master. If the internally-generated start of frame and the received start of frame occur within a window of tolerance of each other, then the secondary masters may continue to process the display data stream independently. A secondary master that detects the start of frames occur outside of the window of tolerance may resynchronize.

Abstract translation: 在一个实施例中，显示装置包括耦合到各个显示器的多个物理接口电路（PHY）。 在镜像模式下，PHY可以作为主设备运行。 主主PHY可以控制到一个或多个辅助主PHY的同步接口。 同步接口可以包括主主机PHY可以生成以指示新帧的开始的帧信号的开始。 辅助主PHY可以被配置为在独立地处理与主主机相同的显示数据的同时产生帧内信号的内部起始。 如果内部产生的帧开始和帧的接收开始在彼此容忍的窗口内发生，则辅助主设备可以继续独立地处理显示数据流。 检测在容许窗口之外发生的帧起始的辅助主站可能会重新同步。

公开(公告)号：US08989509B2

公开(公告)日：2015-03-24

申请号：US13718442

申请日：2012-12-18

Applicant: Apple Inc.

Inventor： Albert C. Kuo ,  Jeffrey E. Frederiksen ,  Michael Frank

IPC: G06K9/36 ,  G06T9/00 ,  G06K9/46

CPC classification number: H04N19/174 ,  H04N19/436 ,  H04N19/635

Abstract: In an embodiment, a compression unit is provided which may perform compression of a pixel stream. Similarly, a decompression unit may be provided which may decompress the compressed pixel stream. The compression and decompression units may include a streaming wavelet transform, which may perform the wavelet transform through a pipeline of wavelet operations. Each section of the pipeline may perform a pass of the wavelet transform on the pixel stream, and the section may provide input to another section of the pipeline that performs a next pass of the wavelet transform. The transform may thus be performed on the fly as the pixels are received.

Abstract translation: 在一个实施例中，提供了可执行像素流的压缩的压缩单元。 类似地，可以提供可以解压缩压缩像素流的解压缩单元。 压缩和解压缩单元可以包括流小波变换，其可以通过小波操作的流水线执行小波变换。 流水线的每个部分可以在像素流上执行小波变换的通过，并且该部分可以向执行小波变换的下一遍的流水线的另一部分提供输入。 因此，可以在接收到像素时在飞行中执行变换。

公开(公告)号：US08754828B2

公开(公告)日：2014-06-17

申请号：US14153275

申请日：2014-01-13

Applicant: Apple Inc.

Inventor： Wolfgang Roethig ,  Michael Frank

IPC: G09G5/00

CPC classification number: G06F3/1423 ,  G06F3/1438 ,  G09G2360/06

Abstract: In an embodiment, a display apparatus includes multiple physical interface circuits (PHYs) couple to respective displays. In a mirror mode, the PHYs may operate as masters. A primary master PHY may control a synchronization interface to one or more secondary master PHYs. The synchronization interface may include a start of frame signal that the primary master PHY may generate to indicate the beginning of a new frame. The secondary master PHYs may be configured to generate internal start of frame signals while independently processing the same display data as the primary master. If the internally-generated start of frame and the received start of frame occur within a window of tolerance of each other, then the secondary masters may continue to process the display data stream independently. A secondary master that detects the start of frames occur outside of the window of tolerance may resynchronize.

公开(公告)号：US20130129246A1

公开(公告)日：2013-05-23

申请号：US13743544

申请日：2013-01-17

Applicant: Apple Inc.

Inventor： Jeffrey E. Frederiksen ,  Michael Frank

IPC: G06K9/36

CPC classification number: G06K9/36 ,  G06F2212/401 ,  G06T9/007 ,  H04N9/67 ,  H04N19/146

Abstract: In an embodiment, a compression unit is provided which may perform compression of images with low latency and relatively little hardware. Similarly, a decompression unit may be provided which may decompress the images with low latency and hardware. In an embodiment, the transmission of compressed coefficients may be performed using less than two passes through the list of coefficients. During the first pass, the most significant coefficients may be transmitted and other significance groups may be identified as linked lists. The linked lists may then be traverse to send the other significance groups. In an embodiment, a color space conversion may be made to permit filtering of fewer color components than might be possible in the source color space.

Abstract translation: 在一个实施例中，提供了压缩单元，其可以执行具有低延迟和相对较少硬件的图像的压缩。 类似地，可以提供可以以低延迟和硬件解压缩图像的解压缩单元。 在一个实施例中，可以使用少于两次通过系数列表来执行压缩系数的传输。 在第一次通过期间，可以发送最重要的系数，并且可以将其他重要组识别为链表。 然后可以遍历链接列表以发送其他重要组。 在一个实施例中，可以进行颜色空间转换以允许对源颜色空间中可能的颜色分量进行滤波。