专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5197058A Electronic offset compensation of the continuous composite track error signal in optical recording 失效
标题翻译：光学记录中连续复合轨迹误差信号的电子偏移补偿
公开(公告)号：US5197058A
公开(公告)日：1993-03-23
申请号：US664881
申请日：1991-03-05
申请人： Bernard W. Bell, Jr. , David K. Campbell , Henryk Birecki
发明人： Bernard W. Bell, Jr. , David K. Campbell , Henryk Birecki
IPC分类号： G11B7/00 , G11B7/004 , G11B7/085 , G11B7/09 , G11B7/095
CPC分类号： G11B7/08517 , G11B7/094
摘要： When doing multitrack seek or a single track jump, the midpoint between the maximum and the minimum of a tracking error signal is determined. A peak detector detects the positive peak and the negative peak. These maximum and minimum values are stored in a sample and hold circuit. A summing circuit determines the midpoint between the maximum and the minimum of the tracking error signal. An operational amplifier provides a true error signal to the servo control system that provides the appropriate servo operating point. The invention is based on the fact that even though there is no absolute reference signal indicating the appropriate on-track position, the tracking servo system obtains the track error over the whole range of positions relative to track center when doing a multitrack seek or a single track jump. The appropriate servo operating point is the midpoint between the maximum and the minimum of the track error signal. This provides compensation for level shifts due to factors such as beam displacement, or detector mispositioning, changes in read/write beam profile, and disk tilt. The present invention solves the key disadvantage of the continuous groove tracking method by eliminating tracking offsets without adding additional information to the disk. It also avoids imposing overhead on the data channel. It compensates for effects of disk tilt, detector misalignment, detector and amplifier offsets, and beam decentration due to fine tracking.

2. 发明授权

US5070493A Wedge prism assembly for optical information storage 失效
标题翻译： WEDGE PRISM大会用于光信息存储
公开(公告)号：US5070493A
公开(公告)日：1991-12-03
申请号：US355738
申请日：1989-05-22
申请人： Daniel R. Marshall , David K. Campbell , Bernard W. Bell, Jr. , David K. Towner
发明人： Daniel R. Marshall , David K. Campbell , Bernard W. Bell, Jr. , David K. Towner
IPC分类号： G11B11/10 , G11B7/135 , G11B7/22 , G11B11/105
CPC分类号： G11B7/1356
摘要： An optical assembly incorporating a wedge-shaped optically transparent prism, a 45 degree right isosceles triangular prism which has two thin film coated surfaces, a rhomboidal prism attached to the triangular prism, a second, smaller 45 degree right isosceles triangular prism attached to one end face of the rhomboidal prism and two planoconvex lenses attached to the combination of the rhomboidal and second triangular prisms is mounted within a housing. All of the optical components are cemented to the adjacent component utilizing a transparent optical cement to form an integral unit. Data and servo detector assemblies and a diode laser light source are mounted on the external surfaces of the housing to form a stationary optical assembly which provides the following functions: generates a collimated beam of light whose power output may be modulated electronically to perform read, write and erase functions; generates an electrical data signal derived from a portion of a returning light beam; and generates suitable electrical error signals for servomechanical control of radial and axial motion of a focused light spot on information storage media.

3. 发明授权

US07298414B2 Digital camera autofocus using eye focus measurement 有权
标题翻译：使用眼睛对焦测量的数码相机自动对焦
公开(公告)号：US07298414B2
公开(公告)日：2007-11-20
申请号：US10353675
申请日：2003-01-29
申请人： Donald J. Stavely , David K. Campbell , Eric F. Aas , Gregory V. Hofer , Scott A. Woods , Dan L. Dalton , Kurt E. Spears
发明人： Donald J. Stavely , David K. Campbell , Eric F. Aas , Gregory V. Hofer , Scott A. Woods , Dan L. Dalton , Kurt E. Spears
IPC分类号： G03B13/00
CPC分类号： H04N5/23212
摘要： Viewfinder apparatus, methods, and digital cameras that provide autofocus using retroreflected eye focus measurements. When a user looks at a part of a scene that is the intended subject of the image, his or her eye is correctly focused. The present invention measures the focus distance of the eye when the eye is focused on the desired location in the scene, and then uses the measured distance to set the focus of the camera.
摘要翻译：取景器设备，方法和数码相机，使用回射眼睛聚焦测量提供自动对焦。当用户看到作为图像的预期主题的场景的一部分时，他或她的眼睛被正确地聚焦。本发明在眼睛聚焦在场景中的期望位置时测量眼睛的对焦距离，然后使用测量的距离来设置照相机的焦点。

4. 发明授权

US4389671A Digitally-controlled analog encrypton 失效
标题翻译：数字控制的模拟软件
公开(公告)号：US4389671A
公开(公告)日：1983-06-21
申请号：US191844
申请日：1980-09-29
申请人： Ronald S. Posner , Charles R. Burr, Jr. , David K. Campbell
发明人： Ronald S. Posner , Charles R. Burr, Jr. , David K. Campbell
IPC分类号： H04N7/167 , H04N7/171 , H04N7/16
CPC分类号： H04N7/171 , H04N7/1675
摘要： An apparatus for scrambling a television signal in which horizontal lines of the transmitted television picture are selectively inverted in accordance with the state of a pseudorandom noise generator. In order to permit correction of the throughput gain as well as the throughput offset at the receiving end of the communication link so as to obtain a desired level of picture quality, particularly in a satellite communication system, an analog calibration signal representing both black and white levels is inserted into a horizontal line of the vertical retrace interval at the transmission end of the link. This calibration signal is then detected at the receiving end of the link and the signal levels are adjusted as needed. In addition, a randomly-varying key code signal for resetting the pseudorandom noise generator is randomly inserted into another horizontal line of the vertical retrace period to control scrambling. The audio portion of the television signal is also scrambled by randomly shifting the audio carrier between first and second offset frequencies.
摘要翻译：一种用于对根据伪随机噪声发生器的状态选择性地反转所发送的电视图像的水平线的电视信号进行加扰的装置。为了允许校正通信链路的接收端的吞吐量增益以及吞吐量偏移，以便获得期望的图像质量水平，特别是在卫星通信系统中，表示黑色和白色的模拟校准信号电平被插入在链路的发送端的垂直回扫间隔的水平线中。然后在链路的接收端检测该校准信号，并根据需要调整信号电平。此外，用于复位伪随机噪声发生器的随机变化的键码信号被随机地插入到垂直回扫周期的另一水平线中以控制加扰。电视信号的音频部分也通过随机移动第一和第二偏移频率之间的音频载波来加扰。

5. 发明授权

US08063940B2 Image-stabilization systems and methods 有权
标题翻译：图像稳定系统和方法
公开(公告)号：US08063940B2
公开(公告)日：2011-11-22
申请号：US10842223
申请日：2004-05-10
申请人： Donald J. Stavely , Christopher A. Whitman , Gregory V. Hofer , David K. Campbell , Jason E. Yost
发明人： Donald J. Stavely , Christopher A. Whitman , Gregory V. Hofer , David K. Campbell , Jason E. Yost
IPC分类号： H04N5/228
CPC分类号： H04N5/23258 , G03B17/00 , H04N5/23287
摘要： Image stabilization systems and methods are disclosed. One embodiment of the image stabilization method, among others, includes detecting motion of a camera, and responsive to the detected motion, changing an optical filter orientation to displace an image provided on a sensor.
摘要翻译：公开了图像稳定系统和方法。图像稳定方法的一个实施例包括检测相机的运动，并且响应于检测到的运动，改变光学滤波器取向以移位设置在传感器上的图像。

6. 发明授权

US07084910B2 System and method for using multiple images in a digital image capture device 失效
公开(公告)号：US07084910B2
公开(公告)日：2006-08-01
申请号：US10071026
申请日：2002-02-08
申请人： Frederic C Amerson , Paul M. Hubel , Donald J Stavely , Charles H McConica , K Douglas Gennetten , Susan Hunter , David K. Campbell
发明人： Frederic C Amerson , Paul M. Hubel , Donald J Stavely , Charles H McConica , K Douglas Gennetten , Susan Hunter , David K. Campbell
IPC分类号： H04N5/262
CPC分类号： H04N5/357 , H04N5/23212 , H04N5/262 , H04N5/765 , H04N5/772 , H04N5/907
摘要： A digital image capture and processing system, comprising a lens coupled to a lens control element is disclosed. The image capture system includes an image sensor configured to capture images from the lens, and a memory element and a processor coupled to the lens control element. The memory element includes image capture software, where the image capture software causes the lens and the image sensor to capture at least two images, each of the at least two images captured using a varying parameter and stored as a single file where the at least two images are combined to form a new image having at least one characteristic different from corresponding characteristics of the at least two images.

7. 发明授权

US5665963A Reflective color filter for color correction of photodetector filters 失效
标题翻译：用于光电检测器滤色片校正的反射滤色片
公开(公告)号：US5665963A
公开(公告)日：1997-09-09
申请号：US590539
申请日：1996-01-24
申请人： David K. Campbell
发明人： David K. Campbell
IPC分类号： G01J3/52 , G01J3/50
CPC分类号： G01J3/513
摘要： A color filter system for an optical system, applicable to optical systems in color image scanners, copiers, video cameras and digital cameras. The optical system includes a photosensor army, transmissive color filters on the photosensor array and a corrective reflective filter adjacent to the photosensor array. The transmissive color filters on the photosensor array are imperfect, transmitting too much visible red as well as infrared. The adjacent reflective filter compensates by suppressing longer visible red wavelengths and infrared wavelengths. The combination provides color precision with cost and manufacturing advantages relative to attempting to provide precise transmissive filters on the photosensor array or relative to providing compensation filters elsewhere in the system.
摘要翻译：一种用于光学系统的滤色器系统，适用于彩色图像扫描仪，复印机，摄像机和数码相机中的光学系统。光学系统包括光传感器军团，光传感器阵列上的透射滤色器和与光电传感器阵列相邻的校正反射滤光器。光传感器阵列上的透射滤色器是不完美的，透射太多的可见红光以及红外线。相邻的反射滤光器通过抑制更长的可见红色波长和红外波长来补偿。相对于在光电传感器阵列上提供精确的透射滤波器或相对于在系统中的其他地方提供补偿滤波器，该组合提供了颜色精度与成本和制造优势。

8. 发明授权

US5435611A Aluminum can handling tongs 失效
标题翻译：铝罐可以处理钳子
公开(公告)号：US5435611A
公开(公告)日：1995-07-25
申请号：US273232
申请日：1994-07-11
申请人： David K. Campbell , Charles M. Campbell
发明人： David K. Campbell , Charles M. Campbell
IPC分类号： B25B7/02 , B25B7/04 , B25B7/06 , B25B7/08 , B25B7/10 , B25J1/02
CPC分类号： B25B7/02 , B25B7/04 , B25B7/06 , B25B7/08 , B25B7/10 , Y10S294/902
摘要： First and second legs are pivotally mounted in a scissor-like relationship about an adjustable pivot axle, wherein an outermost end of the legs have cooperative first and second jaws having facing mirror image surfaces arranged to secure aluminum cans.
摘要翻译：第一和第二腿以关于可调节枢轴的剪刀状关系枢转地安装，其中腿的最外端具有配合的第一和第二钳口，其具有布置成固定铝罐的面对的镜像表面。

9. 发明授权

US4423488A Digital filter employing PROM for storing positive and negative impulse response values 失效
标题翻译：采用PROM的数字滤波器用于存储正和负脉冲响应值
公开(公告)号：US4423488A
公开(公告)日：1983-12-27
申请号：US223572
申请日：1981-01-09
申请人： David K. Campbell
发明人： David K. Campbell
IPC分类号： H03H17/06 , G06F15/31
CPC分类号： H03H17/06
摘要： A digital filter, having a raised-cosine function in the frequency domain, is implemented in the time domain. For positive and negative impulse inputs, the time domain response of the corresponding frequency domain raised cosine response is created by way of a programmable read-only memory (PROM), the contents of which are selectively addressed by the combination of the contents of a shift register and a counter. The shift register contains a prescribed number of digital samples of successive data bits to be transmitted, while the counter is employed to identify or scan a plurality of successive finite filter response values, based upon the current contents of the shift register. From the memory locations of the PROM corresponding to successively generated address, values are read out representative of the overall or accumulated filter response attributable to the data bits stored in the shift register at the successive sample points determined by the contents of the counter.
摘要翻译：在时域中实现了具有频域中的升余弦函数的数字滤波器。对于正脉冲输入和负脉冲输入，通过可编程只读存储器（PROM）创建相应频域升余弦响应的时域响应，其内容由移位内容的组合选择性地寻址注册和柜台。移位寄存器包含要发送的连续数据位的规定数量的数字样本，而根据移位寄存器的当前内容，采用计数器来识别或扫描多个连续的有限滤波器响应值。从对应于相继产生的地址的PROM的存储器位置，读出表示归因于由计数器的内容确定的连续采样点存储在移位寄存器中的数据位的总体或累积滤波器响应的值。

10. 发明授权

US07265790B2 System and method for setting an image capture device to an operational mode 失效
标题翻译：用于将图像捕获设备设置为操作模式的系统和方法
公开(公告)号：US07265790B2
公开(公告)日：2007-09-04
申请号：US10614322
申请日：2003-07-07
申请人： Amy E. Battles , David K. Campbell
发明人： Amy E. Battles , David K. Campbell
IPC分类号： H04N5/225
CPC分类号： H04N5/23245 , H04N5/232
摘要： In an embodiment, a method sets an image capture device to one of a plurality of available operational modes for the image capture device. The method comprises determining an angle of pitch orientation of the image capture device, and setting the image capture device to the one of the plurality of operational modes if the angle of pitch orientation is within a predetermined angle range associated with the one of the plurality of operational modes.
摘要翻译：在一个实施例中，一种方法将图像捕获设备设置为用于图像捕获设备的多种可用操作模式之一。该方法包括确定图像拍摄装置的俯仰方向的角度，并且如果俯仰方向的角度在与多个操作模式中的一个相关联的预定角度范围内，则将图像拍摄装置设置为多个操作模式中的一个操作模式。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式