公开(公告)号：US20150279319A1

公开(公告)日：2015-10-01

申请号：US14225513

申请日：2014-03-26

Applicant: ATI Technologies ULC

Inventor： Minghua Zhu

IPC: G09G5/02

CPC classification number: G09G5/026 ,  G09G5/02 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/0666 ,  G09G2340/0428 ,  G09G2340/06

Abstract: A method, a device, and a non-transitory computer readable medium for performing dithering on an L bit long input data are presented. An M bit long random data is generated, wherein M is a number of least significant bits of the input data. An M bit long frame counter value is added to the random data. The input data is rounded up to L-M most significant bits when the M least significant bits of the input data is greater than the sum of the frame counter value and the random data. The input data is truncated to the L-M most significant bits when the M least significant bits of the input data is less than or equal to the sum of the frame counter value and the random data.

Abstract translation: 呈现用于对L位长输入数据执行抖动的方法，装置和非暂时性计算机可读介质。 生成M位长的随机数据，其中M是输入数据的最低有效位数。 将M位长帧计数器值添加到随机数据。 当输入数据的M个最低有效位大于帧计数器值和随机数据的总和时，输入数据被舍入到L-M个最高有效位。 当输入数据的M个最低有效位小于或等于帧计数器值和随机数据之和时，输入数据被截断为L-M个最高有效位。

公开(公告)号：US09583072B2

公开(公告)日：2017-02-28

申请号：US14225513

申请日：2014-03-26

Applicant: ATI Technologies ULC

Inventor： Minghua Zhu

IPC: G09G5/02

CPC classification number: G09G5/026 ,  G09G5/02 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/0666 ,  G09G2340/0428 ,  G09G2340/06

Abstract: A method, a device, and a non-transitory computer readable medium for performing dithering on an L bit long input data are presented. An M bit long random data is generated, wherein M is a number of least significant bits of the input data. An M bit long frame counter value is added to the random data. The input data is rounded up to L-M most significant bits when the M least significant bits of the input data is greater than the sum of the frame counter value and the random data. The input data is truncated to the L-M most significant bits when the M least significant bits of the input data is less than or equal to the sum of the frame counter value and the random data.

Abstract translation: 呈现用于对L位长输入数据执行抖动的方法，装置和非暂时性计算机可读介质。 生成M位长的随机数据，其中M是输入数据的最低有效位数。 将M位长帧计数器值添加到随机数据。 当输入数据的M个最低有效位大于帧计数器值和随机数据的总和时，输入数据被舍入到L-M个最高有效位。 当输入数据的M个最低有效位小于或等于帧计数器值和随机数据之和时，输入数据被截断为L-M个最高有效位。

公开(公告)号：US20240114150A1

公开(公告)日：2024-04-04

申请号：US17956601

申请日：2022-09-29

Applicant: ATI TECHNOLOGIES ULC

Inventor： Wing-Chi Chow ,  Yee Shun Chan ,  Nicholas James Chorney ,  Minghua Zhu

IPC: H04N19/172 ,  H04N21/43

CPC classification number: H04N19/172 ,  H04N21/4307

Abstract: A display processing device includes a display device interface and a processing unit. The processing is configured to transition at least a first component of the display processing system into a low-power state in response to an active region of a first video frame of a plurality of video frames having completed. A second component of the display processing device is configured to maintain a temporal count value corresponding to a current frame line of the plurality of video frames, and further to generate a first signal in response to the temporal count value corresponding to a first trigger value. The first signal causes the at least first component to transition out of the low-power state.