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公开(公告)号：US20070233764A1
公开(公告)日：2007-10-04
申请号：US11691268
申请日：2007-03-26
申请人： Yuriy Reznik , Albert Ludwin , Hyukjune Chung , Harinath Garudadri , Naveen Srinivasamurthy , Phoom Sagetong
发明人： Yuriy Reznik , Albert Ludwin , Hyukjune Chung , Harinath Garudadri , Naveen Srinivasamurthy , Phoom Sagetong
IPC分类号： G06F17/14
CPC分类号： G06F17/14 , G06F17/147 , H04N19/42 , H04N19/61
摘要： Techniques for efficiently performing full and scaled transforms on data received via full and scaled interfaces, respectively, are described. A full transform is a transform that implements the complete mathematical description of the transform. A full transform operates on or provides full transform coefficients. A scaled transform is a transform that operates on or provides scaled transform coefficients, which are scaled versions of the full transform coefficients. The scaled transform may have lower computational complexity whereas the full transform may be simpler to use by applications. The full and scaled transforms may be for a 2D IDCT, which may be implemented in a separable manner with 1D IDCTs. The full and scaled transforms may also be for a 2D DCT, which may be implemented in a separable manner with ID DCTs. The 1D IDCTs and 1D DCTs may be implemented in a computationally efficient manner.
摘要翻译： 描述了分别对通过完整和缩放界面接收的数据进行全面和缩放变换的技术。 完全变换是实现变换的完整数学描述的变换。 全变换操作或提供全变换系数。 缩放变换是对或者提供缩放变换系数的变换，其是全变换系数的缩放版本。 缩放变换可能具有较低的计算复杂度，而全变换可能更易于由应用使用。 完整和缩放的变换可以用于2D IDCT，其可以用1D IDCT以可分离的方式实现。 完整和缩放的变换也可以用于2D DCT，其可以用ID DCT以可分离的方式实现。 1D IDCT和1D DCT可以以计算有效的方式实现。
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公开(公告)号：US20080072014A1
公开(公告)日：2008-03-20
申请号：US11946901
申请日：2007-11-29
CPC分类号： G06F1/3203 , G06F1/3293 , H04W52/028 , H04W52/0287 , Y02D10/122 , Y02D70/1222 , Y02D70/1242
摘要： A mobile computing device with multiple modes, for example, wireless communication and personal computing, has an application processor and a communication processor. In the computing mode, the application processor is the master processor. In the communication mode, the application processor is deenergized to conserve battery power, with the communication processor functioning as the master processor by accessing the device's peripheral bus using the memory interface of the communication processor.
摘要翻译： 具有多种模式（例如无线通信和个人计算）的移动计算设备具有应用处理器和通信处理器。 在计算模式下，应用处理器是主处理器。 在通信模式下，应用处理器被断电以节省电池电力，通信处理器通过使用通信处理器的存储器接口访问设备的外围总线而用作主处理器。
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公开(公告)号：US20050184993A1
公开(公告)日：2005-08-25
申请号：US10954408
申请日：2004-09-29
申请人： Albert Ludwin , Scott King
发明人： Albert Ludwin , Scott King
IPC分类号： G06F15/16 , G09G3/20 , G09G3/36 , G09G5/00 , G09G5/02 , G09G5/36 , G09G5/39 , G09G5/393 , G09G5/397 , H04M1/73
CPC分类号： G09G3/3611 , G09G5/006 , G09G5/02 , G09G5/363 , G09G5/39 , G09G5/393 , G09G5/397 , G09G2340/0407 , G09G2340/0492 , G09G2340/10 , G09G2340/125 , H04M1/72544 , H04W52/027 , Y02D70/122
摘要： A display processor includes an interface unit, an instruction processor, a synchronization unit, at least one processing unit, and a device buffer. The interface unit receives input image data (e.g., from a main memory) and provides output image data for a frame buffer. The instruction processor receives instructions (e.g., in a script or list) and directs the operation of the processing unit(s). The synchronization unit determines the location of a read pointer for the frame buffer and controls the writing of output image data to the frame buffer to avoid causing visual artifacts on an LCD screen. The processing unit(s) may perform various post-processing functions such as region flip, region rotation, color conversion between two video formats (e.g., from YCrCb to RGB), up/down image size rescaling, alpha-blending, transparency, text overlay, and so on.
摘要翻译： 显示处理器包括接口单元，指令处理器，同步单元，至少一个处理单元和设备缓冲器。 接口单元接收输入图像数据（例如，从主存储器）并提供用于帧缓冲器的输出图像数据。 指令处理器接收指令（例如，在脚本或列表中）并指示处理单元的操作。 同步单元确定帧缓冲器的读指针的位置，并控制将输出图像数据写入帧缓冲器以避免在LCD屏幕上引起视觉伪像。 处理单元可以执行各种后处理功能，例如区域翻转，区域旋转，两种视频格式（例如，从YCrCb到RGB）之间的颜色转换，上/下图像大小重新缩放，阿尔法混合，透明度，文本 覆盖，等等。
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