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31. 发明授权

US5714876A In-service serial digital source signal-level and cable-length measurement 失效
标题翻译：在线串行数字源信号电平和电缆长度测量
公开(公告)号：US5714876A
公开(公告)日：1998-02-03
申请号：US639065
申请日：1996-04-24
申请人： Daniel G. Baker
发明人： Daniel G. Baker
IPC分类号： G01B21/02 , G01B7/02 , G01R19/00 , G01R27/28 , H04B3/46 , H04B17/00 , H04L29/14 , H04N7/10 , H04N17/00 , G01R23/14
CPC分类号： G01B7/02 , H04B3/466
摘要： An in-service cable length and source signal level measurement system uses a simple, zero-IF superheterodyne receiver tuned to only two reference frequencies to generate samples of a serial digital signal at each of the two frequencies. The samples at the two frequencies are input to a processor that calculates the cable length and source signal level as a function of the samples so obtained and cable dependent constants. The samples in units of decibels are subtracted to obtain a loss differential between the samples at the two reference frequencies, and then scaled by a cable dependent scale factor to obtain the length of the cable independent of source signal level and temperature. The source signal level is extrapolated from the loss differential and one of the samples based upon a nominal source amplitude and the cable dependent constants.
摘要翻译：在线电缆长度和源信号电平测量系统使用调谐到两个参考频率的简单的零中频超外差接收器，以在两个频率的每个频率上产生串行数字信号的采样。将两个频率的样本输入到一个处理器，该处理器根据如此获得的样本和电缆相关常数来计算电缆长度和源信号电平。以分贝为单位的样本被减去以获得两个参考频率处的样本之间的损耗差，然后通过电缆依赖的比例因子来缩放，以获得独立于源信号电平和温度的电缆的长度。源信号电平从损耗差异和基于标称源幅度和电缆相关常数的样本之一进行外推。

32. 发明授权

US5428349A Nondisclosing password entry system 失效
标题翻译：不透明的密码输入系统
公开(公告)号：US5428349A
公开(公告)日：1995-06-27
申请号：US955145
申请日：1992-10-01
申请人： Daniel G. Baker
发明人： Daniel G. Baker
IPC分类号： G07F7/10 , H04K1/00
CPC分类号： G07F7/1041 , G06Q20/382 , G07F7/10
摘要： A password access method/algorithm is effected by generating a pseudorandom array of each letter of the alphabet and the numerals 0 through 9 such that the password entry can be monitored without disclosing the letters or numerals contained in the password. The preferred arrangement is a square matrix of six rows and six columns of characters. The user enters the password by selecting either the row or column containing each letter of a memorized password.
摘要翻译：密码访问方法/算法通过生成字母表和数字0至9的每个字母的伪随机数组来实现，使得密码输入可以被监视而不会公开密码中包含的字母或数字。优选的布置是六行六列字符的正方形矩阵。用户通过选择包含记忆密码的每个字母的行或列来输入密码。

33. 发明授权

US5260670A Equivalent time sampler using an oscillator 失效
标题翻译：使用振荡器的等效时间采样器
公开(公告)号：US5260670A
公开(公告)日：1993-11-09
申请号：US821730
申请日：1992-01-16
申请人： Kenneth M. Ainsworth , Daniel G. Baker
发明人： Kenneth M. Ainsworth , Daniel G. Baker
IPC分类号： G01R13/32 , G01R13/34 , G01R29/02 , H04C25/06
CPC分类号： G01R13/345
摘要： An equivalent time sampler uses an oscillator for sampling an input waveform having a repetitive component. A periodic signal is derived from the input waveform, and an offset frequency is derived from the periodic signal. The periodic signal and offset frequency are input to an offset locked oscillator to generate a sampling frequency that is the combination of the periodic signal and the offset frequency. The sampling frequency is used to obtain a sample of the input waveform for each acquisition cycle of the waveform.
摘要翻译：等效时间采样器使用振荡器对具有重复分量的输入波形进行采样。从输入波形导出周期信号，并从周期信号导出偏移频率。周期信号和偏移频率被输入到偏移锁定振荡器以产生作为周期信号和偏移频率的组合的采样频率。采样频率用于获得波形的每个采集周期的输入波形的采样。

34. 发明授权

US4680621A Method and apparatus for variable phasing of periodic signals 失效
标题翻译：周期信号可变相位的方法和装置
公开(公告)号：US4680621A
公开(公告)日：1987-07-14
申请号：US776313
申请日：1985-09-16
申请人： Daniel G. Baker , Magaret A. Feisel
发明人： Daniel G. Baker , Magaret A. Feisel
IPC分类号： H03L7/081 , H03L7/06 , H04N9/475 , H04N9/45 , H04L7/00 , H04L25/36 , H04N9/44
CPC分类号： H04N9/475
摘要： A periodic output signal is generated at a variable phase relative to a periodic input signal by comparing the input signal with a third periodic signal that has a frequency which is less than the frequency of the input signal and that has a duty cycle which is equal to one-half of the ratio of the frequency of the third periodic signal to the frequency of the input signal. The phase difference is detected between the input signal and a frequency component of the third periodic signal which has the same frequency as the input signal. The output signal is generated at a frequency to maintain a predetermined phase relationship between the periodic input signal and the frequency component of the third periodic signal, and the phase of the output signal relative to the third periodic signal is varied. A predetermined phase relationship is maintained between the output signal and a second periodic input signal by comparing the output signal and the second input signal and generating a signal having a variable that is representative of the phase difference between them. The value of the variable is compared with a reference level representative of its value when the output signal and the second input signal are in the predetermined phase relationship, and the result of the comparison is used to control the phase of the output signal through a phase shifter to maintain the predetermined phase relationship.
摘要翻译：通过将输入信号与具有小于输入信号的频率的频率的第三周期信号相比较，相对于周期性输入信号在可变相位产生周期性输出信号，并且具有等于第三周期信号的频率与输入信号的频率之比的一半。在输入信号和与输入信号具有相同频率的第三周期信号的频率分量之间检测相位差。输出信号以一定频率产生，以维持周期性输入信号和第三周期信号的频率分量之间的预定相位关系，并且改变相对于第三周期信号的输出信号的相位。通过比较输出信号和第二输入信号并产生具有代表它们之间的相位差的变量的信号，在输出信号和第二周期性输入信号之间保持预定的相位关系。当输出信号和第二输入信号处于预定的相位关系时，将变量的值与表示其值的参考电平进行比较，并且比较结果用于通过相位控制输出信号的相位移位器保持预定的相位关系。

35. 发明授权

US4677395A Digital phase shifter 失效
标题翻译：数字移相器
公开(公告)号：US4677395A
公开(公告)日：1987-06-30
申请号：US835688
申请日：1986-03-03
申请人： Daniel G. Baker
发明人： Daniel G. Baker
IPC分类号： H03H7/20 , H03C3/00 , H03H11/20 , H03H17/08 , H03L7/00
CPC分类号： H03H17/08
摘要： A digital phase shifter uses a heterodyne concept to mix a continuous wave (cw) signal with a local oscillator which is an integer multiple of the difference frequency. The difference frequency is phase-locked, and the local oscillator frequency is divided into N increments by a counter. The count of the counter is compared to a microprocessor generated phase shift value which is added to the difference frequency. The phase shifted difference frequency is then converted up to produce the phase shifted continuous wave signal.
摘要翻译：数字移相器使用外差概念将连续波（cw）信号与作为差频的整数倍的本地振荡器混合。差频被锁相，本地振荡器频率由计数器分为N个增量。将计数器的计数与添加到差分频率的微处理器产生的相移值进行比较。然后将相移的差频转换成相移的连续波信号。

36. 发明授权

US09071825B2 Tiling or blockiness detection based on spectral power signature 有权
标题翻译：基于光谱功率签名的平铺或块检测
公开(公告)号：US09071825B2
公开(公告)日：2015-06-30
申请号：US13454484
申请日：2012-04-24
申请人： Daniel G. Baker
发明人： Daniel G. Baker
IPC分类号： H04N7/12 , H04N19/86 , H04N19/40
CPC分类号： H04N19/86 , H04N19/40 , H04N19/865
摘要： Tiling or blockiness detection based on spectral power signature uses one-dimensional vectors at block edges to find a spectral signature created by the tiling or blockiness in an image. A baseband component of the image, such as luminance, is edge enhanced, and then the pixel values along each horizontal line are summed to form a one-dimensional column vector of summed edge values for the image. The power of the column vector and the power of selected frequency components within the column vector are determined. The powers are then combined and converted to dimensionless tiling or blockiness values relative to each of the selected frequencies.
摘要翻译：基于光谱功率签名的平铺或块检测使用块边缘处的一维向量来找到由图像中的平铺或块状产生的频谱。图像的基带分量（例如亮度）被边缘增强，然后将沿着每条水平线的像素值相加以形成用于图像的相加边缘值的一维列向量。确定列向量的功率和列向量内所选频率分量的功率。然后将功率组合并转换成相对于所选择的每个频率的无量纲的平铺值或阻塞值。

37. 发明授权

US08941717B2 Semi-automatic 3D stereoscopic disparity cursor 有权
标题翻译：半自动3D立体视差光标
公开(公告)号：US08941717B2
公开(公告)日：2015-01-27
申请号：US13216084
申请日：2011-08-23
申请人： Daniel G. Baker , Lakshmanan Gopishankar
发明人： Daniel G. Baker , Lakshmanan Gopishankar
IPC分类号： H04N13/00 , H04N13/02
CPC分类号： H04N13/128 , H04N13/271 , H04N2013/0081
摘要： Embodiments of the present invention provide a “disparity cursor” for easily measuring disparity within a selected region of a 3D image under test. In operation, a user places a window that defines the disparity cursor over a selected region of the 3D image under test using a mouse, keyboard, or other user-interface device. An average disparity value for the image segments contained within the window is then automatically calculated and reported to the user.
摘要翻译：本发明的实施例提供了用于容易地测量被测3D图像的选定区域内的视差的“视差光标”。在操作中，用户将使用鼠标，键盘或其他用户界面设备的视差光标定位在被测3D图像的选定区域上的窗口。然后，自动计算包含在窗口内的图像片段的平均视差值并将其报告给用户。

38. 发明申请

US20130279607A1 TILING OR BLOCKINESS DETECTION BASED ON SPECTRAL POWER SIGNATURE 有权
标题翻译：基于光谱功率签名的倾斜或阻尼检测
公开(公告)号：US20130279607A1
公开(公告)日：2013-10-24
申请号：US13454484
申请日：2012-04-24
申请人： Daniel G. BAKER
发明人： Daniel G. BAKER
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/40 , H04N19/865
摘要： Tiling or blockiness detection based on spectral power signature uses one-dimensional vectors at block edges to find a spectral signature created by the tiling or blockiness in an image. A baseband component of the image, such as luminance, is edge enhanced, and then the pixel values along each horizontal line are summed to form a one-dimensional column vector of summed edge values for the image. The power of the column vector and the power of selected frequency components within the column vector are determined. The powers are then combined and converted to dimensionless tiling or blockiness values relative to each of the selected frequencies.
摘要翻译：基于光谱功率签名的平铺或块检测使用块边缘处的一维向量来找到由图像中的平铺或块状产生的频谱。图像的基带分量（例如亮度）被边缘增强，然后将沿着每条水平线的像素值相加以形成用于图像的相加边缘值的一维列向量。确定列向量的功率和列向量内所选频率分量的功率。然后将功率组合并转换成相对于所选择的每个频率的无量纲的平铺值或阻塞值。

39. 发明申请

US20120257010A1 SEMI-AUTOMATIC 3D STEREOSCOPIC DISPARITY CURSOR 有权
标题翻译：半自动三维立体声差分光标
公开(公告)号：US20120257010A1
公开(公告)日：2012-10-11
申请号：US13216084
申请日：2011-08-23
申请人： DANIEL G. BAKER , LAKSHMANAN GOPISHANKAR
发明人： DANIEL G. BAKER , LAKSHMANAN GOPISHANKAR
IPC分类号： H04N13/00
CPC分类号： H04N13/128 , H04N13/271 , H04N2013/0081
摘要： Embodiments of the present invention provide a “disparity cursor” for easily measuring disparity within a selected region of a 3D image under test. In operation, a user places a window that defines the disparity cursor over a selected region of the 3D image under test using a mouse, keyboard, or other user-interface device. An average disparity value for the image segments contained within the window is then automatically calculated and reported to the user.
摘要翻译：本发明的实施例提供了用于容易地测量被测3D图像的选定区域内的视差的视差光标。在操作中，用户将使用鼠标，键盘或其他用户界面设备的视差光标定位在被测3D图像的选定区域上的窗口。然后，自动计算包含在窗口内的图像片段的平均视差值并将其报告给用户。

40. 发明申请

US20120162527A1 BLUR DETECTION WITH LOCAL SHARPNESS MAP 有权
标题翻译：用本地敏锐地图进行检测
公开(公告)号：US20120162527A1
公开(公告)日：2012-06-28
申请号：US12976729
申请日：2010-12-22
申请人： DANIEL G. BAKER
发明人： DANIEL G. BAKER
IPC分类号： H04N5/00 , G06K9/40
CPC分类号： H04N5/21 , G06T7/0002 , G06T7/13 , G06T2207/30168 , H04N5/14 , H04N17/004
摘要： A single-ended blur detection probe and method with a local sharpness map for analyzing a video image sequence uses two sets of edge filters, one for “fast edges” and the other for “slow edges.” Each set of edge filters includes a horizontal bandpass filter, a vertical bandpass filter and a pair of orthogonal diagonal filters where the frequency response of the fast edge filters overlap the frequency response of the slow edge filters. The video image sequence is input to each filter of each set, and the output absolute values are combined with weighting factors to produce a slow edge weighted sum array and a fast edge weighted sum arra. The respective weighted sum arrays are then decimated to produce a slow edge decimated array and a fast edge decimated array. The ratio of the maximum difference value between the decimated arrays and the maximum value from the fast edge decimated array, weighted by an appropriate factor, produces a localized maximum sharpness value, the log of which produces a dimensionless blur value.
摘要翻译：具有用于分析视频图像序列的局部锐度图的单端模糊检测探针和方法使用两组边缘滤波器，一组用于“快速边缘”，另一组用于“慢边缘”。每组边缘滤波器包括水平带通滤波器，垂直带通滤波器和一对正交对角线滤波器，其中快速边缘滤波器的频率响应与慢边滤波器的频率响应重叠。将视频图像序列输入到每一组的每个滤波器，并且将输出绝对值与加权因子组合以产生慢边加权和阵列和快速边缘加权和arra。然后将相应的加权和阵列抽取以产生慢边抽取阵列和快速边缘抽取阵列。抽取的阵列之间的最大差值与由快速边缘抽取阵列的最大值的比值由适当的因子加权，产生局部最大锐度值，其日志产生无量纲的模糊值。

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