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| Number | Title | Issue Date |
| 8120697 | Imaging device and focusing method A hill-climbing scheme of an automatic focusing process performed in a digital video camera obtains a moving speed Vj and an AGC gain Gj of a compensator lens every time an AF evaluation value AFj is detected corresponding to the position of the compensator lens. Ad... | 02/21/2012 |
| 8077253 | Solid-state device having digital signal processing circuit An analog signal photo-electrically converted in a pixel of a light receiving area is converted to a digital signal by an ADC. The digital signal is processed by a digital signal processing circuit, and then, successively output as a digital video signal. The digita... | 12/13/2011 |
| 8077252 | Electronic camera that adjusts a distance from an optical lens to an imaging surface so as to search the focal point An electronic camera includes an image sensor having an imaging surface for capturing an object scene through a focus lens. When the object scene captured by the imaging surface includes a face portion of a human, a CPU designates, as a focal-point search area a fir... | 12/13/2011 |
| 8040429 | Electronic apparatus having autofocus camera function An electronic apparatus including a drive mechanism, a signal processing section, an image pickup lens, an image pickup device and a focus control section is described. The drive mechanism changes a position of the image pickup lens relative to the image pickup devi... | 10/18/2011 |
| 8026975 | Image capturing apparatus and control method therefor In an image capturing apparatus for carrying out TV-AF type autofocus control, a difference is provided between an AF frame set for a particular object detected in an image, for example, for a person's face, and a normal AF frame in the band of frequency components ... | 09/27/2011 |
| 7916208 | Image processor, digital camera, and method for processing image data An image processor including an object extracting device extracting an object region from original image data; an object separating device separating the object region from the other region; a first filter subjecting the object region to out-of-focus filtering proce... | 03/29/2011 |
| 7889272 | Imaging apparatus, high frequency component detection circuit, high frequency component detection method and computer program product A high frequency component detection circuit detecting a high frequency component included in a video signal is provided. The high frequency component detection circuit includes a filter acquiring a group of a predetermined number of pixels including a focused pixel... | 02/15/2011 |
| 7884878 | Lens apparatus, imaging apparatus, and automatic focusing control method A lens apparatus capable of carrying out a suitable AF control operation even when text or character information is superimposed on a video signal is provided. The lens apparatus is configured to generate first and second AF evaluation values from a video signal obt... | 02/08/2011 |
| 7880804 | High frequency information detecting device and imaging device A weighted gain generator sets a high frequency information detecting frame in an imaging screen of an image sensor, after that, sets a reference point in the high frequency information detecting frame, and sets such a weighting that has correspondence to a distance... | 02/01/2011 |
| 7773146 | Focus control apparatus and optical apparatus A focus control apparatus includes a signal generator for generating a first signal in accordance with a predetermined frequency component of an image signal obtained by photoelectrically converting an image of a subject formed by an image-taking optical system, a d... | 08/10/2010 |
| 7515201 | Focus detection method and focus detection apparatus A focus detection apparatus includes a lens drive mechanism for moving a focusing lens group, and a controller for detecting a contrast value of the object image and moving the focusing lens group. The controller calculates a difference between maximum and minimum c... | 04/07/2009 |
| 7515200 | Image sensing apparatus, focus adjustment method, and focus adjustment computer control program An apparatus configured to optimize autofocus performance in photographing a still picture includes a focus adjusting device configured to detect a position of a focus lens in accordance with movement of the focus lens, a designating device which designates still pi... | 04/07/2009 |
| 7505075 | Autofocus camera capable of calculating a focus match state A CPU calculates integrating values of image-capturing signals in band 1 obtained by removing a frequency component equal to or lower than a first cutoff frequency from an image-capturing signal output from an image-capturing element through a band pass filte... | 03/17/2009 |
| 7486331 | Auto focus methods and auto focus devices for electronic cameras using the same Auto focus methods for electronic cameras are disclosed. The method of the present invention obtains and compares evaluation values (high frequency component (HFC)) corresponding to desired image signals from left or right locations relative to a center of a zoom le... | 02/03/2009 |
| 7456898 | Video camera apparatus including automatic focusing A video camera includes a gate circuit for extracting a sharpness signal relative to an area which is set in a portion of a picture, a focus adjusting device for performing focus adjustment on the basis of the sharpness signal relative to the area, and an area selec... | 11/25/2008 |
| 7440690 | Focus detection apparatus and control method thereof An output from an auto focus sensor is converted into a digital signal by an A/D converting section, and an output from the A/C converting section is stored in a memory section. Further, a second AF arithmetic section is used to concurrently execute a plurality of f... | 10/21/2008 |
| 7421195 | Apparatus for acquiring focussing information and method of acquiring focusing information A storage unit is configured to store beforehand a table that shows a relation between spread parameters and command values supplied to a control unit to acquire a focused image of an object, and information that designates a command value corresponding to an inflec... | 09/02/2008 |
| 7420612 | Digital camera A digital camera includes a CCD imager. If brightness of an object is not enough, a frame rate of the CCD imager at a time of a focus adjustment is changed from 30 fps to 15 fps. This also lowers a reading speed of a camera signal, and reduces noise included in the ... | 09/02/2008 |
| 7388720 | Imaging apparatus A lens-controlling device controls a first lens unit which moves for zooming and a second lens unit which moves for correcting the displacement of an image plane caused by zooming and for focusing. The lens-controlling device includes a memory which stores data for ... | 06/17/2008 |
| 7365790 | Autofocus system for an image capturing apparatus A digital camera 100 includes a photographic optical system (21) for projecting an image of a subject; a CCD (24) for converting the projected image into an image signal and outputting it; a focus driving system (25) which changes a focus... | 04/29/2008 |
| 7365789 | Autofocus method and apparatus An object of this invention is to provide an autofocus method and apparatus capable of always performing proper focusing operation. To achieve this object, a control device drives a focus lens in accordance with the operation of an operation device, and stores the s... | 04/29/2008 |
| 7355634 | Moving image pickup apparatus carrying out automatic focus adjustment and still image recording method therefor A moving image pickup apparatus which is capable of attaining both enhanced focusing accuracy and increased chances of snapshooting. A predetermined time period is determined according to a designated image pickup period. Responsive to designation of still image rec... | 04/08/2008 |
| 7352403 | Method for adjusting relative position of lens module by using uniform light source A method for adjusting relative position of a lens module by using a uniform light source is provided. The lens module includes a bottom board, an image sensor, an adjusting module and a lens apparatus. The image sensor is disposed on the bottom board and perpendicu... | 04/01/2008 |
| 7324150 | Imaging apparatus for determining a focused state An imaging apparatus including: an imaging device; a focusing operation control; and a decision control for comparing an evaluation value obtained from present image data with an evaluation value obtained from last image data obtained when the focus system leans was... | 01/29/2008 |
| 7319487 | Focusing apparatus, camera and focus position detecting method A focusing apparatus includes a filter unit for performing frequency filtering processing on an image pickup signal, and a focus position detecting unit for detecting a focus position based on the contrast value of the image pickup signal having undergone the freque... | 01/15/2008 |
| 7317488 | Method of and system for autofocus An image of a subject is taken by a solid image taking device including a first image taking element having a plurality of pixels and a second image taking element having a plurality of pixels smaller than those of the first image taking element. First and second ev... | 01/08/2008 |
| 7301579 | Imaging apparatus An AF controlling unit (83) starts an outside light AF operation controlled by an outside AF unit (81) by a half-pressing of a shutter release button (61), and a change over between the outside AF operation and a CCDAF operation controlled by a ... | 11/27/2007 |
| 7295243 | Autofocus apparatus having a flash synchronized to an autofocus sampling time The autofocus apparatus determines a focus position according to a result of sampling an AF evaluated value and drives a lens system to the focus position. This autofocus apparatus further performs a flash in synchronism with a sampling timing of an AF evaluated val... | 11/13/2007 |
| 7289151 | System and method for data capture In one embodiment there is shown a method for capturing data, the method comprising sensing a first signal, capturing an auto exposure (AE) image in response to a sensed first signal, the auto exposure image captured with settings based upon preestablished criterion... | 10/30/2007 |
| 7289679 | System and method for measuring image quality using compressed image data A system and method for determining image quality by analyzing DCT information. Included is a system for measuring image quality of a compressed image divided into a plurality of blocks, wherein each block has frequency domain components including a DC coefficient v... | 10/30/2007 |
| 7280149 | Method and apparatus for detecting optimum lens focus position The present invention is a technique for measuring optimum focus position of a lens to include the steps of capturing a digital image in the field of view, digitally compressing the image to provide a compressed file having a file size and providing a focus accuracy... | 10/09/2007 |
| 7262804 | Autofocus camera adjusting focus lens position based on illumination characteristics A CPU calculates integrating values of image-capturing signals in a band 1 obtained by removing through a band pass filter a low frequency component of image-capturing signal output from an image-capturing device and integrating values of the image-capturing ... | 08/28/2007 |
| 7262805 | Focus detecting system A focus detecting system for determining the focus state of an imaging lens, such as a camera lens, is disclosed. Object light not forming an image for image production is deflected along an optical axis through a relay lens to a focus state detection unit that incl... | 08/28/2007 |
| 7242434 | Imaging device, automatic focusing method and recording medium on which a program is recorded An imaging device that can shorten focus searching search times and enable correct focusing in accordance with shooting conditions. An autofocus function operates when a shutter button of a digital camera is half-pressed. At this time, a current shooting mode, which... | 07/10/2007 |
| 7224397 | AF control apparatus and AF control method A CPU performs a control for photographing a main subject in absence of auxiliary light, whereby an image signal is outputted from an analogue signal processing section. Next, the CPU performs a control for photographing the main subject in presence of the auxiliary... | 05/29/2007 |
| 7215374 | Camera module having geared lens barrel A camera having a housing, an imaging array positioned in said housing, and a lens assembly is disclosed. The lens assembly includes a fixed portion attached to the housing and a moveable portion connected to the fixed portion by a threaded coupling. The lens is pos... | 05/08/2007 |
| 7196729 | AF evaluation value calculating device The present invention provides an AF evaluation value calculating device in which speed of AF control does not deteriorate even when a number of AF areas are set. The AF evaluation value calculating device for calculating an AF evaluation value used for AF (auto-foc... | 03/27/2007 |
| 7193196 | Methods and systems for evaluating optical systems Systems and method for determining, based on a gray scale image, focus of an imaging system. A method of this invention includes the steps of: a) acquiring a gray scale image of a test target, b) binarizing the acquired gray scale image, c) analyzing the binarized a... | 03/20/2007 |
| 7184090 | Camera A camera includes: an image-capturing element that captures a subject image through a photographic lens; an evaluation value calculation unit that calculates a focus evaluation value based upon an image-capturing signal output from the image-capturing element; a foc... | 02/27/2007 |
| 7181049 | Authentication object image-pickup method and device therefor In an iris image pickup method in which an image signal picking up an iris is allowed to pass through a high-pass filter (41L) and a lens position in which an output of the high-pass filter (41L) indicates a peak value is searched by a mountaineering m... | 02/20/2007 |
