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1. 发明授权

US06222945B1 Selective filtering of a dithered image for the purpose of inverse dithering 失效
标题翻译：用于反向抖动的抖动图像的选择性滤波
公开(公告)号：US06222945B1
公开(公告)日：2001-04-24
申请号：US09016317
申请日：1998-01-30
申请人： Shiufun Cheung , Robert A. Ulichney , Robert MacNamara , Giridharan Iyengar
发明人： Shiufun Cheung , Robert A. Ulichney , Robert MacNamara , Giridharan Iyengar
IPC分类号： G06K940
CPC分类号： H04N1/40075
摘要： A method for selecting a filter from among a plurality of ordered filters within an inverse dithering system is disclosed. In response to receipt of a number of filter parameters associated with the plurality of ordered filters and a selected portion of a dithered image, a determination is made of the region of support for the plurality of filters from the filter parameters. From these regions of support, a lowest ordered filter having a region of support that excludes an image edge in the selected portion of the dithered image is selected.
摘要翻译：公开了一种从逆抖动系统内的多个有序滤波器中选择滤波器的方法。响应于接收到与多个有序滤波器相关联的多个滤波器参数以及抖动图像的选定部分，从滤波器参数确定对多个滤波器的支持区域。从这些支持区域中，选择具有不包括抖动图像的所选部分中的图像边缘的支持区域的最低有序滤波器。

2. 发明授权

US06421084B1 Method for interpolating a full color image from a single sensor using multiple threshold-based gradients 失效
标题翻译：使用多个基于阈值的梯度从单个传感器内插全色图像的方法
公开(公告)号：US06421084B1
公开(公告)日：2002-07-16
申请号：US09033346
申请日：1998-03-02
申请人： Edward T. Chang , Shiufun Cheung , Davis Pan
发明人： Edward T. Chang , Shiufun Cheung , Davis Pan
IPC分类号： H04N973
CPC分类号： G06T3/4015 , G06T3/4007 , H04N9/045
摘要： A digital imaging system is provided for interpolating a full color image from a camera having an array of single color sensors. Measured color values are stored as an array of data elements in a memory of the system. Each data element corresponds to the measured color value from one sensor. A set of gradient values is determined for each data element at a specific location in the array. The gradient values correspond to color value differences in a plurality of directions from the data element. From the set of gradient values, a threshold value is determined. Using the threshold value, a subset of gradient values is selected so that the members of the subset have gradient values less than the threshold. Additional color values for each data element are interpolated according to the subset of gradient values.
摘要翻译：提供了一种用于从具有单色传感器阵列的相机内插全色图像的数字成像系统。测量的颜色值作为数据元素的数组存储在系统的存储器中。每个数据元素对应于来自一个传感器的测量颜色值。为阵列中特定位置的每个数据元素确定一组梯度值。梯度值对应于来自数据元素的多个方向上的色值差。从梯度值集合中确定阈值。使用阈值，选择梯度值的子集，使得子集的成员具有小于阈值的梯度值。每个数据元素的附加颜色值根据梯度值的子集进行内插。

3. 发明授权

US06347160B1 Increasing the bit depth of and filtering dithered images for the purpose of inverse dithering 失效
标题翻译：增加抖动抖动图像的位深度和滤波，以进行反向抖动
公开(公告)号：US06347160B1
公开(公告)日：2002-02-12
申请号：US09015935
申请日：1998-01-30
申请人： Shiufun Cheung , Robert A. Ulichney , Robert MacNamara
发明人： Shiufun Cheung , Robert A. Ulichney , Robert MacNamara
IPC分类号： G06K940
CPC分类号： H04N1/40075 , G06T5/20 , G06T7/13 , G06T2207/20012 , G06T2207/20192
摘要： A method for inverse dithering a dithered image using a filter selected from a set of filters arranged in a preselected order is disclosed. Upon receipt of a selected portion of a dithered image, the selected portion is up-multiplied from a first amplitude resolution to a second amplitude resolution. The up-multiplied dithered image at the second amplitude resolution is then filtered by the selected filter coefficients to generate the inverse dithered image.
摘要翻译：公开了一种使用从按预选顺序布置的一组滤波器中选择的滤波器来对抖动图像进行反抖动的方法。在接收到抖动图像的所选部分时，所选择的部分从第一幅度分辨率向第二幅度分辨率倍增。然后，通过所选择的滤波器系数对在第二幅度分辨率下的倍增抖动图像进行滤波，以产生逆抖动图像。

4. 发明授权

US06473525B1 Method for detecting an image edge within a dithered image 失效
标题翻译：用于检测抖动图像中的图像边缘的方法
公开(公告)号：US06473525B1
公开(公告)日：2002-10-29
申请号：US09657290
申请日：2000-09-07
申请人： Shiufun Cheung , Robert A. Ulichney , Robert MacNamara , Giridharan Iyengar
发明人： Shiufun Cheung , Robert A. Ulichney , Robert MacNamara , Giridharan Iyengar
IPC分类号： G06K940
CPC分类号： H04N1/40075 , G06T3/403
摘要： A method for detecting an image edge within a dithered image. A pixel within a support region is selected for processing. The differences between pixel values in the region and the selected pixel are computed to form a current difference map. Whether the selected pixel in the region differ by no more than one resolution level from any other pixel of the region is determined from the current difference map. An edge is determined not to exist within the region if the difference map for a region contains no values differing by more than one resolution level. An edge is determined to exist within a region if the difference map for the selected pixel and region contain values differing by more than one resolution level. Alternatively, a difference map for the selected region of support is determined and compared to a table of all possible valid difference maps. If a corresponding difference map is found within the table then an edge does not exist within the presently processed region of support. If no corresponding difference map is found within the table then an edge exists within the region of support. Alternatively, the number of valid difference maps to be compared for each region may be reduced by selecting only the difference maps based on the dither template as originally applied to the image. All valid difference maps which do not contain values based on the original dither template are excluded from comparison.
摘要翻译：一种用于检测抖动图像内的图像边缘的方法。选择支持区域内的像素进行处理。计算区域和所选像素中的像素值之间的差异以形成电流差分图。根据当前差异图确定该区域中所选择的像素是否与该区域的任何其他像素不同于一个分辨率水平。如果区域的差分图不包含多于一个分辨率级别的值，则确定该区域内不存在边。如果所选择的像素和区域的差分图包含多于一个分辨率水平的值，则确定边缘存在于区域内。或者，确定所选择的支持区域的差异图，并与所有可能的有效差异图表进行比较。如果在表内找到对应的差异图，则在当前处理的支持区域内不存在边缘。如果在表内没有找到对应的差异图，则在支持区域内存在边。或者，可以通过仅基于最初应用于图像的抖动模板选择差分图来减少每个区域要比较的有效差分图的数量。不包含基于原始抖动模板的值的所有有效差分图从比较中排除。

5. 发明授权

US6038576A Bit-depth increase by bit replication 失效
标题翻译：位复制增加位深度
公开(公告)号：US6038576A
公开(公告)日：2000-03-14
申请号：US982954
申请日：1997-12-02
申请人： Robert A. Ulichney , Shiufun Cheung
发明人： Robert A. Ulichney , Shiufun Cheung
IPC分类号： G06F7/00 , G06F5/00 , G09G5/36
CPC分类号： G06F5/00
摘要： A method for bit-depth increasing digital data represented by a first number of original bits which are sequentially ordered beginning with a start bit and ending with an end bit. To bit-depth increase the data, in an expanded presentation, the original bits are replicated in the sequential order starting with the start bit to form replication bits. The original bits are appended with a second number of the replication bits to form the expanded presentation of the digital data. The appended replication bits start with the start bit and are in the sequential order of the original bits.
摘要翻译：一种用于比特深度增加的数字数据的方法，其由第一数量的原始比特表示，其以起始比特开始并以结束比特结尾顺序排列。为了逐位深度增加数据，在扩展的表示中，原始位以起始位开始的顺序复制，以形成复制位。原始位附加有第二数量的复制位以形成数字数据的扩展呈现。所附的复制位以起始位开始，并且处于原始位的顺序。

6. 发明申请

US20140270242A1 Feedback Mechanism for Boost-on-demand Amplifiers 有权
标题翻译：升压放大器的反馈机制
公开(公告)号：US20140270242A1
公开(公告)日：2014-09-18
申请号：US14078613
申请日：2013-11-13
申请人： Shiufun Cheung , Jay Solomon
发明人： Shiufun Cheung , Jay Solomon
IPC分类号： H03G3/00 , H03F3/181
CPC分类号： H03F3/181 , H03F3/68 , H03F2200/435
摘要： A method and an amplifier for amplifying audio signals include a signal processor for processing incoming audio samples in preparation for amplification by an electronic amplifier circuit. A voltage is received from a power supply. Before the signal processor completes processing the incoming audio samples, an input level is estimated based on the incoming audio samples. In response to a comparison between the estimated input level and a threshold value, it is determined whether to boost the voltage received from the power supply. After the signal processor completes processing the incoming audio samples, an output level is estimated based on the processed audio samples. A determination is made, in response to the estimated output level, whether to adjust the threshold value used to determine whether to boost the voltage received from the power supply.
摘要翻译：用于放大音频信号的方法和放大器包括用于处理输入音频样本以准备由电子放大器电路进行放大的信号处理器。从电源接收电压。在信号处理器完成处理输入音频样本之前，基于输入音频样本估计输入电平。响应于估计输入电平和阈值之间的比较，确定是否升高从电源接收的电压。在信号处理器完成对输入音频样本的处理之后，基于经处理的音频样本来估计输出电平。响应于估计的输出电平，确定是否调整用于确定是否升高从电源接收的电压的阈值。

7. 发明申请

US20140270240A1 BOOST-ON-DEMAND AMPLIFIER 有权
标题翻译：升压放大器
公开(公告)号：US20140270240A1
公开(公告)日：2014-09-18
申请号：US13832837
申请日：2013-03-15
申请人： Jay Solomon , Valerie M. Mollo , Elena Acosta Antonellis , Shiufun Cheung
发明人： Jay Solomon , Valerie M. Mollo , Elena Acosta Antonellis , Shiufun Cheung
IPC分类号： H03G3/00 , H03F3/181
CPC分类号： H03G3/007 , H03F1/025 , H03F3/185 , H03F3/68 , H03F2200/321 , H03F2200/511
摘要： A method and an amplifier for amplifying audio signals receive and process an incoming audio sample in preparation for amplification by an electronic amplifier circuit. A boost supply circuit receives a voltage from a power supply. A processor system determines whether amplification of the incoming audio sample warrants more voltage than the voltage received from the power supply. Before completing the processing of the incoming audio sample, the processor system sends a signal to the boost supply circuit to boost the voltage received from the power supply and to supply the boosted voltage to the electronic amplifier circuit if the incoming audio sample warrants more voltage than the voltage received from the power supply. Otherwise, the boost supply circuit passes the voltage received from the power supply to the electronic amplifier circuit.
摘要翻译：用于放大音频信号的方法和放大器接收和处理输入音频样本以准备由电子放大器电路进行放大。升压电路从电源接收电压。处理器系统确定输入音频样本的放大是否保证比从电源接收的电压更多的电压。在完成输入音频采样的处理之前，处理器系统向升压电路发送一个信号，以提升从电源接收的电压，并将升压后的电压提供给电子放大器电路，如果输入音频样本保证更多的电压从电源接收的电压。否则，升压电路将从电源接收的电压传递到电子放大器电路。

8. 发明授权

US6163629A Method for low complexity low memory inverse dithering 失效
标题翻译：低复杂度低内存反向抖动的方法
公开(公告)号：US6163629A
公开(公告)日：2000-12-19
申请号：US16316
申请日：1998-01-30
申请人： Shiufun Cheung , Robert A. Ulichney , Robert MacNamara , Giridharan Iyengar
发明人： Shiufun Cheung , Robert A. Ulichney , Robert MacNamara , Giridharan Iyengar
IPC分类号： H04N7/30 , G06T5/00 , H04N1/40 , H04N1/405 , G06K9/40
CPC分类号： H04N1/40075
摘要： A method and apparatus for inverse dithering a dithered image is disclosed. The system includes a plurality of digital filters which are organized according to a preselected order. A selection module enables the selection of one filter from the plurality of filters according to the preselected order to filter a presently selected portion of the dithered image. The selected portion of the dithered image is then processed based upon the selected filter to generate a portion of the inverse dithered image.
摘要翻译：公开了一种用于逆抖动抖动图像的方法和装置。该系统包括根据预选顺序组织的多个数字滤波器。选择模块使得能够根据预选顺序从多个滤波器中选择一个滤波器来对当前选择的抖动图像的部分进行滤波。然后基于所选择的滤波器来处理抖动图像的所选部分，以产生逆抖动图像的一部分。

9. 发明授权

US09161151B2 Manipulating spatial processing in an audio system 有权
标题翻译：在音频系统中操纵空间处理
公开(公告)号：US09161151B2
公开(公告)日：2015-10-13
申请号：US13476383
申请日：2012-05-21
申请人： Davis Y. Pan , Shiufun Cheung , Darby Edward Hadley , Ryo Maiguma , Takao Nakayma , Bruce C. Po , Katsumi Tomida , Petr Vicherek , Tobe Z. Barksdale , Ronald A. Fowler
发明人： Davis Y. Pan , Shiufun Cheung , Darby Edward Hadley , Ryo Maiguma , Takao Nakayma , Bruce C. Po , Katsumi Tomida , Petr Vicherek , Tobe Z. Barksdale , Ronald A. Fowler
IPC分类号： H04B1/00 , H04S7/00
CPC分类号： H04S7/30 , H04R2499/13
摘要： A vehicle audio system that includes a source of audio signals, which may include both entertainment audio signals and announcement audio signals, speakers for radiating audio signals, and spatial enhancement circuitry comprising circuitry to avoid applying spatial enhancement processing to the announcement audio signals.
摘要翻译：包括音频信号源的车载音频系统，其可以包括娱乐音频信号和通告音频信号，用于辐射音频信号的扬声器，以及包括用于避免对通告音频信号应用空间增强处理的电路的空间增强电路。

10. 发明申请

US20120230534A1 MANIPULATING SPATIAL PROCESSING IN AN AUDIO SYSTEM 有权
标题翻译：在音频系统中操纵空间处理
公开(公告)号：US20120230534A1
公开(公告)日：2012-09-13
申请号：US13476383
申请日：2012-05-21
申请人： Davis Y. Pan , Shiufun Cheung , Darby Edward Hadley , Ryo Maiguma , Takao Nakayma , Bruce C. Po , Katsumi Tomida , Petr Vicherek , Tobe Z. Barksdale , Ronald A. Fowler
发明人： Davis Y. Pan , Shiufun Cheung , Darby Edward Hadley , Ryo Maiguma , Takao Nakayma , Bruce C. Po , Katsumi Tomida , Petr Vicherek , Tobe Z. Barksdale , Ronald A. Fowler
IPC分类号： H04R1/02
CPC分类号： H04S7/30 , H04R2499/13
摘要： A vehicle audio system that includes a source of audio signals, which may include both entertainment audio signals and announcement audio signals, speakers for radiating audio signals, and spatial enhancement circuitry comprising circuitry to avoid applying spatial enhancement processing to the announcement audio signals.
摘要翻译：包括音频信号源的车载音频系统，其可以包括娱乐音频信号和通告音频信号，用于辐射音频信号的扬声器，以及包括用于避免对通告音频信号应用空间增强处理的电路的空间增强电路。

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