公开(公告)号：US20070297513A1

公开(公告)日：2007-12-27

申请号：US11803535

申请日：2007-05-14

申请人： Mainak Biswas ,  Nikhil Balram ,  Bharat Pathak

发明人： Mainak Biswas ,  Nikhil Balram ,  Bharat Pathak

IPC分类号： H04B1/66 ,  H04N5/14 ,  H04N7/01

CPC分类号： H04N7/014

摘要： Disclosed herein are systems and methods for estimating global and local motions between a pair of temporally adjacent frames of an input signal and for applying these motion vectors to produce at least one interpolated, motion-compensated frame between the adjacent frames. In particular, the systems and methods comprise designs for a motion compensated frame rate converter including a global affine motion estimation engine, a global translation motion estimation engine, a segmentation mask generator, an object edge strength map generator and a local motion estimation engine. Combinations of these features are implemented in a motion compensated picture rate converter to accurately and efficiently provide motion estimation and compensation for a sequence of frames.

摘要翻译： 这里公开了用于估计输入信号的一对时间相邻帧之间的全局和局部运动并且用于施加这些运动矢量以在相邻帧之间产生至少一个内插运动补偿帧的系统和方法。 特别地，系统和方法包括用于包括全局仿射运动估计引擎，全局平移运动估计引擎，分割掩码生成器，对象边缘强度图生成器和局部运动估计引擎的运动补偿帧速率转换器的设计。 这些特征的组合在运动补偿图像速率转换器中实现，以准确且有效地为一系列帧提供运动估计和补偿。

公开(公告)号：US08340185B2

公开(公告)日：2012-12-25

申请号：US11803535

申请日：2007-05-14

申请人： Mainak Biswas ,  Nikhil Balram ,  Bharat Pathak

发明人： Mainak Biswas ,  Nikhil Balram ,  Bharat Pathak

IPC分类号： H04N11/04

CPC分类号： H04N7/014

摘要： Disclosed herein are systems and methods for estimating global and local motions between a pair of temporally adjacent frames of an input signal and for applying these motion vectors to produce at least one interpolated, motion-compensated frame between the adjacent frames. In particular, the systems and methods comprise designs for a motion compensated frame rate converter including a global affine motion estimation engine, a global translation motion estimation engine, a segmentation mask generator, an object edge strength map generator and a local motion estimation engine. Combinations of these features are implemented in a motion compensated picture rate converter to accurately and efficiently provide motion estimation and compensation for a sequence of frames.

摘要翻译： 这里公开了用于估计输入信号的一对时间相邻帧之间的全局和局部运动并且用于施加这些运动矢量以在相邻帧之间产生至少一个内插运动补偿帧的系统和方法。 特别地，系统和方法包括用于包括全局仿射运动估计引擎，全局平移运动估计引擎，分割掩码生成器，对象边缘强度图生成器和局部运动估计引擎的运动补偿帧速率转换器的设计。 这些特征的组合在运动补偿图像速率转换器中实现，以准确且有效地为一系列帧提供运动估计和补偿。

公开(公告)号：US20070140588A1

公开(公告)日：2007-06-21

申请号：US11313577

申请日：2005-12-20

申请人： Nikhil Balram ,  Bharat Pathak ,  Uma Jayaraman

发明人： Nikhil Balram ,  Bharat Pathak ,  Uma Jayaraman

IPC分类号： G06K9/40

CPC分类号： G06T5/002 ,  G06T2207/10016 ,  G06T2207/20204

摘要： High-frequency noise is generated that approximates the appearance of traditional “film grain” for a digital video signal. By adding a relatively small amount of film grain noise, the video can be made to look more natural and more pleasing to the human viewer. The digital film grain generation can be used to mask unnatural smooth artifacts in digital video such as “blockiness” and “contouring” in the case of compressed video and/or used to provide visual enhancements or special effects to any digital video stream. The digital film grain generator can control grain size and the amount of film grain to be added.

摘要翻译： 产生近似于数字视频信号的传统“胶片颗粒”的外观的高频噪声。 通过添加相对少量的胶片颗粒噪声，可以使视频看起来更自然，更令人欣赏。 数字胶片颗粒生成可以用于在压缩视频的情况下在数字视频中掩盖不自然的平滑伪影，例如“块状”和“轮廓”，和/或用于向任何数字视频流提供视觉增强或特殊效果。 数字胶片颗粒发生器可以控制晶粒尺寸和添加的胶片颗粒的数量。

公开(公告)号：US07889940B2

公开(公告)日：2011-02-15

申请号：US12642440

申请日：2009-12-18

申请人： Nikhil Balram ,  Bharat Pathak ,  Uma Jayaraman

发明人： Nikhil Balram ,  Bharat Pathak ,  Uma Jayaraman

IPC分类号： G06K9/40

CPC分类号： G06T5/002 ,  G06T2207/10016 ,  G06T2207/20204

摘要： High-frequency noise is generated that approximates the appearance of traditional “film grain” for a digital video signal. By adding a relatively small amount of film grain noise, the video can be made to look more natural and more pleasing to the human viewer. The digital film grain generation can be used to mask unnatural smooth artifacts in digital video such as “blockiness” and “contouring” in the case of compressed video and/or used to provide visual enhancements or special effects to any digital video stream. The digital film grain generator can control grain size and the amount of film grain to be added.

摘要翻译： 产生近似于数字视频信号的传统“胶片颗粒”的外观的高频噪声。 通过添加相对少量的胶片颗粒噪声，可以使视频看起来更自然，更令人欣赏。 数字胶片颗粒生成可以用于在压缩视频的情况下在数字视频中掩盖不自然的平滑伪影，例如“块状”和“轮廓”，和/或用于向任何数字视频流提供视觉增强或特殊效果。 数字胶片颗粒发生器可以控制晶粒尺寸和添加的胶片颗粒的数量。

公开(公告)号：US20100166335A1

公开(公告)日：2010-07-01

申请号：US12642440

申请日：2009-12-18

申请人： Nikhil Balram ,  Bharat Pathak ,  Uma Jayaraman

发明人： Nikhil Balram ,  Bharat Pathak ,  Uma Jayaraman

IPC分类号： G06K9/40

CPC分类号： G06T5/002 ,  G06T2207/10016 ,  G06T2207/20204

摘要： High-frequency noise is generated that approximates the appearance of traditional “film grain” for a digital video signal. By adding a relatively small amount of film grain noise, the video can be made to look more natural and more pleasing to the human viewer. The digital film grain generation can be used to mask unnatural smooth artifacts in digital video such as “blockiness” and “contouring” in the case of compressed video and/or used to provide visual enhancements or special effects to any digital video stream. The digital film grain generator can control grain size and the amount of film grain to be added.

摘要翻译： 产生近似于数字视频信号的传统“胶片颗粒”的外观的高频噪声。 通过添加相对少量的胶片颗粒噪声，可以使视频看起来更自然，更令人欣赏。 数字胶片颗粒生成可以用于在压缩视频的情况下在数字视频中掩盖不自然的平滑伪影，例如“块状”和“轮廓”，和/或用于向任何数字视频流提供视觉增强或特殊效果。 数字胶片颗粒发生器可以控制晶粒尺寸和添加的胶片颗粒的数量。

公开(公告)号：US07664337B2

公开(公告)日：2010-02-16

申请号：US11313577

申请日：2005-12-20

申请人： Nikhil Balram ,  Bharat Pathak ,  Uma Jayaraman

发明人： Nikhil Balram ,  Bharat Pathak ,  Uma Jayaraman

IPC分类号： G06K9/40

CPC分类号： G06T5/002 ,  G06T2207/10016 ,  G06T2207/20204

摘要： High-frequency noise is generated that approximates the appearance of traditional “film grain” for a digital video signal. By adding a relatively small amount of film grain noise, the video can be made to look more natural and more pleasing to the human viewer. The digital film grain generation can be used to mask unnatural smooth artifacts in digital video such as “blockiness” and “contouring” in the case of compressed video and/or used to provide visual enhancements or special effects to any digital video stream. The digital film grain generator can control grain size and the amount of film grain to be added.

摘要翻译： 产生近似于数字视频信号的传统“胶片颗粒”的外观的高频噪声。 通过添加相对少量的胶片颗粒噪声，可以使视频看起来更自然，更令人欣赏。 数字胶片颗粒生成可以用于在压缩视频的情况下在数字视频中掩盖不自然的平滑伪影，例如“块状”和“轮廓”，和/或用于向任何数字视频流提供视觉增强或特殊效果。 数字胶片颗粒发生器可以控制晶粒尺寸和添加的胶片颗粒的数量。

公开(公告)号：US07821578B2

公开(公告)日：2010-10-26

申请号：US11400505

申请日：2006-04-07

申请人： Bharat Pathak ,  Nikhil Balram

发明人： Bharat Pathak ,  Nikhil Balram

IPC分类号： H04N5/21

CPC分类号： H04N5/21 ,  G06T5/002 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/20182 ,  H04N17/00 ,  H04N17/04

摘要： A video noise reducer reduces the noise artifacts in a video signal. The video noise reducer is reconfigurable to provide spatial noise reduction and temporal noise reduction in either a parallel or cascade architecture. The video noise reducer is self-calibrating by providing estimation modules that estimate the amount of noise in the video signal and a noise injector that confirms the measurement against a known quantity of noise. The video noise reducer is adaptive to solutions in hardware or a combination of hardware and firmware. The video noise reducer is also optimized for efficient memory usage in interlaced video signal processing applications.

摘要翻译： 视频降噪器减少了视频信号中的噪声伪影。 视频降噪器是可重构的，以在并行或级联架构中提供空间降噪和时间噪声降低。 通过提供估计视频信号中的噪声量的估计模块和噪声注入器，视频噪声减少器是自校准的，该噪声注射器针对已知数量的噪声确认测量。 视频降噪器适用于硬件或硬件和固件组合的解决方案。 视频降噪器还针对隔行扫描视频信号处理应用中的高效内存使用进行了优化。

公开(公告)号：US20070236609A1

公开(公告)日：2007-10-11

申请号：US11400505

申请日：2006-04-07

申请人： Bharat Pathak ,  Nikhil Balram

发明人： Bharat Pathak ,  Nikhil Balram

IPC分类号： H04N5/00

CPC分类号： H04N5/21 ,  G06T5/002 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/20182 ,  H04N17/00 ,  H04N17/04

摘要： A video noise reducer reduces the noise artifacts in a video signal. The video noise reducer is reconfigurable to provide spatial noise reduction and temporal noise reduction in either a parallel or cascade architecture. The video noise reducer is self-calibrating by providing estimation modules that estimate the amount of noise in the video signal and a noise injector that confirms the measurement against a known quantity of noise. The video noise reducer is adaptive to solutions in hardware or a combination of hardware and firmware. The video noise reducer is also optimized for efficient memory usage in interlaced video signal processing applications.

摘要翻译： 视频降噪器减少了视频信号中的噪声伪影。 视频降噪器是可重构的，以在并行或级联架构中提供空间降噪和时间噪声降低。 通过提供估计视频信号中的噪声量的估计模块和噪声注入器，视频噪声减少器是自校准的，该噪声注射器针对已知数量的噪声确认测量。 视频降噪器适用于硬件或硬件和固件组合的解决方案。 视频降噪器还针对隔行扫描视频信号处理应用中的高效内存使用进行了优化。

公开(公告)号：US20060282683A1

公开(公告)日：2006-12-14

申请号：US11152598

申请日：2005-06-13

申请人： Subramanyam Chandramouli ,  Bharat Pathak

发明人： Subramanyam Chandramouli ,  Bharat Pathak

IPC分类号： G06F12/14

CPC分类号： G06F12/1433 ,  G06F2212/2022

摘要： A method and device for providing a secret region in a flash erase block to store a key. A block of memory may only be read, programmed, or erased if a key is provided which matches the key stored in the secret region of the block.

摘要翻译： 一种用于在闪存擦除块中提供秘密区域以存储密钥的方法和设备。 如果提供与存储在块的秘密区域中的密钥相匹配的密钥，则只能读取，编程或擦除存储器块。

公开(公告)号：US06449211B1

公开(公告)日：2002-09-10

申请号：US09945021

申请日：2001-08-31

申请人： Owen W. Jungroth ,  Rajesh Sundaram ,  Mase J. Taub ,  Rupinder K. Bains ,  Raymond Zeng ,  Binh N. Ngo ,  Bharat Pathak

发明人： Owen W. Jungroth ,  Rajesh Sundaram ,  Mase J. Taub ,  Rupinder K. Bains ,  Raymond Zeng ,  Binh N. Ngo ,  Bharat Pathak

IPC分类号： G11C800

CPC分类号： G11C16/30 ,  G11C5/147 ,  G11C8/08

摘要： A circuit includes (i) an N-channel device having a gate, a source connected to low voltage, and a drain connected to a memory select gate, (ii) a P-channel device having a gate, a source, and a drain connected to the drain of the N-channel device, and (iii) a voltage supply connected to the source of the P-channel device, the voltage supply switching between a first high voltage and a first lower voltage. A gate driver supplies, to the gates of the N-channel and P-channel devices, a second high voltage, a second low voltage, or an intermediary voltage between the second high voltage and second low voltage. The gate driver supplies the intermediary voltage when the voltage supply switches between the first high voltage and first lower voltage.

摘要翻译： 电路包括（i）具有栅极，连接到低电压的源极和连接到存储器选择栅极的漏极的N沟道器件，（ii）具有栅极，源极和漏极的P沟道器件 连接到N沟道器件的漏极，以及（iii）连接到P沟道器件源极的电压源，电压源在第一高电压和第一较低电压之间切换。 栅极驱动器向N沟道和P沟道器件的栅极提供第二高电压，第二低电压或第二高电压和第二低电压之间的中间电压。 当电源在第一高电压和第一低电压之间切换时，栅极驱动器提供中间电压。