With Zoom Position Detection Or Interrelated Iris Control Patents (Class 348/347)
  • Patent number: 10302764
    Abstract: An illumination module and a depth camera on a near-eye-display (NED) device used for depth tracking may be subject to strict power consumption budgets. To reduce power consumption of depth tracking, the illumination power of the illumination module is controllably varied. Such variation entails using a previous frame, or previously recorded data, to inform the illumination power used to generate a current frame. Once the NED determines the next minimum illumination power, the illumination module activates at that power level. The illumination module emits electromagnetic (EM) radiation (e.g. IR light), the EM radiation reflects off surfaces in the scene, and the reflected light is captured by the depth camera. The method repeats for subsequent frames, using contextual information from each of the previous frames to dynamically control the illumination power. Thus, the method reduces the overall power consumption of the depth camera assembly of the NED to a minimum level.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: May 28, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Raymond Kirk Price, Michael Bleyer, Denis Demandolx
  • Patent number: 10277801
    Abstract: The image capture device includes an optical system including a focus lens, a CCD that captures a subject image input via the optical system and generates an image signal, an image processor that generates image data by performing predetermined processing on the image signal generated by the CCD, and a controller. The controller performs a scan operation for detecting a focus position for each of a plurality of partial regions of image data while moving the focus lens and records a moving image by moving the focus lens while switching a moving speed of the focus lens based on information on the focus position obtained for each of the plurality of partial regions as a result of the scan operation. The plurality of partial regions is a plurality of regions obtained by dividing an image region of the image data.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: April 30, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tomohiro Oogami, Mitsuyoshi Okamoto, Kohei Fukugawa, Koji Shibuno
  • Patent number: 10156706
    Abstract: Zoom digital cameras comprising a Wide sub-camera and a folded fixed Tele sub-camera. The folded Tele sub-camera may be auto-focused by moving either its lens or a reflecting element inserted in an optical path between its lens and a respective image sensor. The folded Tele sub-camera is configured to have a low profile to enable its integration within a portable electronic device.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: December 18, 2018
    Assignee: Corephotonics Ltd.
    Inventors: Gal Shabtay, Ephraim Robert Goldenberg, Gal Avivi, Gil Bachar
  • Patent number: 10148866
    Abstract: An imaging device includes an imaging section, an image capture optical system, and a controller. The controller sets in an image a first focus adjustment region, which is a target of adjustment of focusing conditions, and a second focus adjustment region, which has a lower priority of adjustment of focusing than the first focus adjustment region. The controller performs focus adjustment based on the image data in the second focus adjustment region, if focus adjustment based on the image data in the first focus adjustment region is difficult. If the focus adjustment based on the image data in the first focus adjustment region is not difficult, while performing the focus adjustment based on the image data in the second focus adjustment region, the controller performs the focus adjustment based on the image data in the first focus adjustment region.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: December 4, 2018
    Assignee: Olympus Corporation
    Inventor: Shingo Miyazawa
  • Patent number: 10006803
    Abstract: A contact detector circuit that detects a change in a DC sensor signal based on a change in a physical amount to be detected includes: a reference signal generation circuit that generates a reference signal based on the DC sensor signal; a trigger signal output circuit that compares the DC sensor signal with the reference signal and outputs a trigger signal based on a result of the comparison; and a sampling-and-holding circuit that holds the reference signal when the trigger signal is started to be outputted and outputs the held reference signal to the trigger signal output circuit while the trigger signal is outputted. The trigger signal output circuit uses the reference signal outputted by the sampling-and-holding circuit for the comparison with the DC sensor signal while the trigger signal is outputted.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: June 26, 2018
    Assignee: Mituoyo Corporation
    Inventor: Nobuhiro Ishikawa
  • Patent number: 9992411
    Abstract: An electronic device with photographing function is provided. The electronic device includes a first image-capturing unit, a second image-capturing unit, a touch display screen and a processing unit. The first image-capturing unit includes a straight photosensitive unit. The second image-capturing unit includes a transverse photosensitive unit. The processing unit is coupled to the first image-capturing unit, the second image-capturing unit and the touch display screen. The processing unit determines, according to the user's operation of the electronic device, to use the straight photosensitive unit of the first image-capturing unit to capture a first image from a pickup target or to use the transverse photosensitive unit of the second image-capturing unit to capture a second image from the pickup target.
    Type: Grant
    Filed: January 2, 2015
    Date of Patent: June 5, 2018
    Assignee: Wistron Corp.
    Inventors: Yung-Yen Chang, Haiyan Jiang
  • Patent number: 9883095
    Abstract: A focus adjusting device which includes an edge detection unit that detects edges of a subject image for each color component forming an image including the subject image; a distribution detection unit that detects distributions of a focalized state and an unfocused state of the image based on the edges detected by the edge detection unit; and a control unit that moves a lens based on the distributions detected by the distribution detection unit, wherein the subject image is incident from an optical system having the lens, the control unit moves the lens, and thus the subject image is focused on.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: January 30, 2018
    Assignee: NIKON CORPORATION
    Inventor: Hayato Hokoi
  • Patent number: 9829684
    Abstract: Zoom digital cameras comprising a Wide sub-camera and a folded fixed Tele sub-camera. The folded Tele sub-camera may be auto-focused by moving either its lens or a reflecting element inserted in an optical path between its lens and a respective image sensor. The folded Tele sub-camera is configured to have a low profile to enable its integration within a portable electronic device.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: November 28, 2017
    Assignee: COREPHOTONICS LTD.
    Inventors: Gal Shabtay, Ephraim Robert Goldenberg, Gal Avivi, Gil Bachar
  • Patent number: 9805566
    Abstract: A video surveillance system may include at least one sensing unit capable of being operated in a scanning mode and a video processing unit coupled to the sensing unit, the video processing unit to receive and process image data from the sensing unit and to detect scene events and target activity.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: October 31, 2017
    Assignee: AVIGILON FORTRESS CORPORATION
    Inventors: Andrew J. Chosak, Paul C. Brewer, Geoffrey Egnal, Himaanshu Gupta, Niels Haering, Alan J. Lipton, Li Yu
  • Patent number: 9772480
    Abstract: The image measurement device includes: a measurement target place specifying part that specifies a measurement target place on a workpiece image based on a user's operation; an illumination condition storage part that holds two or more illumination conditions; an imaging control part that controls a camera and an illumination device to acquire two or more of the workpiece images sequentially photographed while making the illumination condition different; a workpiece image display part that displays the acquired plurality of workpiece images; a workpiece image selecting part that selects any one of the displayed workpiece images; an illumination condition deciding part that decides the illumination condition based on the selected workpiece image; and a dimension calculating part that extracts an edge of the measurement target place based on the workpiece image photographed on the decided illumination condition, and obtains a dimension of the measurement target place based on the extracted edge.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: September 26, 2017
    Assignee: Keyence Corporation
    Inventor: Hayato Oba
  • Patent number: 9769375
    Abstract: An auto focus camera module includes a camera module housing defining an aperture and an internal cavity to accommodate camera module components, an image sensor coupled to or within the housing, a lens barrel within the housing that contains an optical train including at least one movable lens disposed relative to the aperture and image sensor to focus images of scenes onto the image sensor along an optical path, and a fast focus MEMS actuator coupled to one or more lenses of the optical train including the at least one movable lens and configured to rapidly move said at least one movable lens relative to the image sensor to provide autofocus for the camera module in each frame of a preview or video sequence or both.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: September 19, 2017
    Assignee: DigitalOptics Corporation MEMS
    Inventors: Petronel Bigioi, Peter Corcoran, Takanori Miki
  • Patent number: 9762789
    Abstract: An autofocus device includes: an imaging element; an imaging element driver; an imaging element driving controller; a detector; a focus determiner; and a speed parameter calculator. The focus determiner detects a focus position based on a contrast value. The speed parameter calculator calculates a speed parameter used to set a driving speed of the imaging element driver based on the contrast value. The imaging element driving controller performs first and second driving controls for detecting the focus position based on the speed parameter in an autofocus operation. Also, the imaging element driving controller sets, during the first driving control, a driving speed of the imaging element driver for the second driving control.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: September 12, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoshi Matsui, Masahiro Inata, Norikazu Katsuyama
  • Patent number: 9729835
    Abstract: A method is provided for switching operation of a monitoring system from a first monitoring mode to a second monitoring mode. An overview image is presented when the monitoring system is in a first monitoring mode. A direction signal is received from a control means when the monitoring system is in the first monitoring mode. A camera is directed in an absolute direction indicated by the direction signal in accordance with a first camera control scheme. The monitoring system enters into a second monitoring mode in response to receiving the direction signal presenting a detailed image view captured by the camera when directed in the direction indicated by the direction signal. When in the second monitoring mode, a camera head of the camera is moved in response to control signals from the control means in accordance with a second control scheme.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 8, 2017
    Assignee: AXIS AB
    Inventors: John Rehn, Niklas Svensson, Andreas Palsson
  • Patent number: 9638910
    Abstract: The image measurement device includes: a measurement target place specifying part that specifies a measurement target place on a workpiece image based on a user's operation; an illumination condition storage part that holds two or more illumination conditions; an imaging control part that controls a camera and an illumination device to acquire two or more of the workpiece images sequentially photographed while making the illumination condition different; a workpiece image display part that displays the acquired plurality of workpiece images; a workpiece image selecting part that selects any one of the displayed workpiece images; an illumination condition deciding part that decides the illumination condition based on the selected workpiece image; and a dimension calculating part that extracts an edge of the measurement target place based on the workpiece image photographed on the decided illumination condition, and obtains a dimension of the measurement target place based on the extracted edge.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: May 2, 2017
    Assignee: Keyence Corporation
    Inventor: Hayato Oba
  • Patent number: 9638908
    Abstract: The image measurement device includes: a side-emitting illumination device that has a light amount distribution sharply changing in a photographing axis direction of a camera, and irradiates a workpiece on a movable stage with illumination light from a side; a measurement target place specifying part that specifies a measurement target place on a workpiece image; an illumination position adjusting part that moves the side-emitting illumination device in the photographing axis direction, to adjust a relative position of the side-emitting illumination device to the movable stage; a relative position identifying part that obtains a change in luminance in the measurement target place with respect to two or more of the workpiece images photographed by making the relative position different, to identify a relative position; an imaging control part that controls the illumination position adjusting part based on the identified relative position and drives the side-emitting illumination device.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: May 2, 2017
    Assignee: Keyence Corporation
    Inventors: Hayato Oba, Koji Takahashi
  • Patent number: 9638985
    Abstract: An adjusting method and device of focusing curve of camera lens is disclosed. Steps of the adjusting method of focusing curve of camera lens includes: determining an adjustable moving range; moving the camera lens in the area of adjustable moving range, and recording a high definition of the camera lens; computing a difference value of a initial position of the camera lens and the high definition of the camera lens, and computing a focus offset; adjusting the focusing curve according to the focusing curve. Therefore, the angle of the camera lens motor can be adjusted accurately.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: May 2, 2017
    Assignees: NANNING FUGUI PRECISION INDUSTRIAL CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Cheng-Long Lin
  • Patent number: 9628704
    Abstract: An image capture accelerator performs accelerated processing of image data. In one embodiment, the image capture accelerator includes accelerator circuitry including a pre-processing engine and a compression engine. The pre-processing engine is configured to perform accelerated processing on received image data, and the compression engine is configured to compress processed image data received from the pre-processing engine. In one embodiment, the image capture accelerator further includes a demultiplexer configured to receive image data captured by an image sensor array implemented within, for example, an image sensor chip. The demultiplexer may output the received image data to an image signal processor when the image data is captured by the image sensor array in a standard capture mode, and may output the received image data to the accelerator circuitry when the image data is captured by the image sensor array in an accelerated capture mode.
    Type: Grant
    Filed: February 20, 2016
    Date of Patent: April 18, 2017
    Assignee: GoPro, Inc.
    Inventors: Scott Patrick Campbell, Paul Mobbs, Balineedu Chowdary Adsumilli, Sumit Chawla
  • Patent number: 9621784
    Abstract: There is provided a focus control apparatus including: a first adjustment unit configured to adjust a focus distance; a second adjustment unit configured to adjust an addition amount of the focus distance adjusted with the first adjustment unit; and a focus control unit configured to control a focus based on the focus distance adjusted with the first adjustment unit and the addition amount adjusted with the second adjustment unit. Also provided are a focus control method, a camera apparatus and a focus control method in the camera apparatus.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: April 11, 2017
    Assignee: SONY CORPORATION
    Inventor: Koji Kamiya
  • Patent number: 9591195
    Abstract: Camera control architecture and methods that distribute control responsibilities across hard real-time and soft real-time parts. The operation of digital camera control algorithms can be made less sensitive to timing fluctuations among the various systems within a device platform that includes a camera module (CM) and/or image signal processing (ISP) pipeline. Real-time dispatch of control parameter values may be offloaded from a controller responsible for generating control parameter values. With relaxed timing requirements, camera control algorithm libraries may be developed independent of lower-level hardware responsible for managing the dispatch of control parameter values to the CM and/or ISP.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: March 7, 2017
    Assignee: Intel Corporation
    Inventors: Jarno Nikkanen, Liron Ain-Kedem
  • Patent number: 9584731
    Abstract: A camera system is provided that provides a smooth and centered zoom, even at high levels of magnification. The camera system corrects for misalignment between the optical axis of a lens and center of an image sensor. As a result of the misalignment, the center of an image will move during a zoom movement. The current camera system corrects for the misalignment as the zoom movement occurs. The correction is matched to the speed of the zoom in order to provide a fluid zoom movement.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: February 28, 2017
    Assignee: Avigilon Corporation
    Inventors: Peter Wai Neufeld, Sina Afrooze
  • Patent number: 9581882
    Abstract: An image capturing device and an auto-focus method thereof are provided, where the method includes the following steps. An exposure time is calculated by using an optical sensing element of the first lens. Whether the exposure time exceeds a time threshold is determined. If so, a global maximum search is concurrently performed by the first lens with a first resolution and a first step size as well as by the second lens with a second resolution and a second step size, where the first resolution is higher than the second resolution, and the first step size is less than the second step size. When a focus region in which a focus position is located is obtained by using the second lens, the focus position would be searched out from the focus region by using the first lens so as to obtain a new focus image.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: February 28, 2017
    Assignee: Acer Incorporated
    Inventors: Shih-Ting Huang, Chao-Shih Huang
  • Patent number: 9538065
    Abstract: Systems and methods for multi-focus imaging are disclosed. An imaging system may suggest multiple regions of interest to a user based on a preview mode of a scene of interest. The user may select a plurality of the suggested regions of interest for a multi-focus image. The imaging system calculates the autofocus parameters for each of the multiple regions of interest and captures single images of each of the regions of interest when the shutter button of the camera is pressed. The imaging system then generates a multi-focus image from the multiple images.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: January 3, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Adarsh Hosaagrahara Nagaraja, Weiliang Liu, Shizhong Liu
  • Patent number: 9521311
    Abstract: A method that includes: detecting, by the image acquisition apparatus, image data of a photographed subject in the case of current photographing parameters, where the photographing parameters include a photographing focal length and a focus, and the image data includes a position of the photographed subject in a formed image and an image size; adjusting the image acquisition apparatus based on the position of the photographed subject in the formed image, so that the position of the photographed subject in the formed image is a first position; determining a target value of the photographing focal length based on a photographing parameter-image data-photographing distance correspondence and according to a current photographing focal length, the image data, and a preset image size; and adjusting a photographing focal length of the image acquisition apparatus to the target value of the photographing focal length.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: December 13, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Kai Li
  • Patent number: 9503651
    Abstract: An optimal zooming speed determining device includes: a storage to store a zooming speed at each position of a zoom lens; a tracking implementer to calculate a position of the zoom lens changed in a unit time at a zooming speed at each position of the zoom lens; a moving time calculator to calculate a difference between a position of a focus lens corresponding to a position of the zoom lens before the position of the zoom lens is changed and a position of the focus lens corresponding to the changed position of the zoom lens, and calculate a focus moving time by dividing the difference between positions of the focus lens by a highest moving speed of the focus lens; and a zooming speed determiner to reduce the zooming speed at each position of the zoom lens, if the focus moving time is greater than the unit time.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: November 22, 2016
    Assignee: Hanwha Techwin Co., Ltd.
    Inventors: Daebong Kim, Youngsang Kwon, Joohye Noh
  • Patent number: 9497388
    Abstract: Systems, methods, and devices are disclosed for determining a zooming factor for a camera in a pan, tilt, and zoom (PTZ) camera tracking system to enable a camera to keep an object at a constant size within the camera's viewing area, despite changes in the object's distance from the camera. This provides a complement to a camera's pan and tilt tracking of the moving object. For example, a PTZ camera tracking system that determines an object to track, utilizes information regarding images of the object of interest are used to determine a zooming factor (or other zooming value) for a camera in the PTZ camera tracking system. This information includes variables such as tilt angles of one or more cameras and a reference zooming factor.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: November 15, 2016
    Assignee: PELCO, INC.
    Inventor: Chien-Min Huang
  • Patent number: 9426374
    Abstract: An image pickup apparatus includes: an optics system that forms an optical image of a subject on an imaging surface; a variable magnification lens that is part of the optics system, that is provided to be movable in a direction of an optical axis of the optics system, and that enlarges or reduces the optical image formed on the imaging surface in association with a movement of the variable magnification lens; a position detection unit that detects a position of the variable magnification lens in the direction of the optical axis; a storage unit that stores output characteristic information about a characteristic of an output of the position detection unit according to a position of the variable magnification lens in the direction of the optical axis; and a driving control unit that performs a control for moving the variable magnification lens on the basis of the output characteristic information.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: August 23, 2016
    Assignee: Olympus Corporation
    Inventors: Masanori Gocho, Masaki Kondo, Ken Fukumoto
  • Patent number: 9420187
    Abstract: A camera system is provided that provides a smooth and centered zoom, even at high levels of magnification. The camera system corrects for misalignment between the optical axis of a lens and center of an image sensor. As a result of the misalignment, the center of an image will move during a zoom movement. The current camera system corrects for the misalignment as the zoom movement occurs. The correction is matched to the speed of the zoom in order to provide a fluid zoom movement.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: August 16, 2016
    Assignee: Avigilon Corporation
    Inventors: Peter Wai Neufeld, Sina Afrooze
  • Patent number: 9344701
    Abstract: Methods, systems, and computer program products for determining a depth map in a scene are disclosed herein. According to one aspect, a method includes collecting focus statistical information for a plurality of focus windows. The method may also include determining a focal distance for each window. Further, the method may include determining near, far, and target focus distances. The method may also include calculating a stereo-base and screen plane using the focus distances.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: May 17, 2016
    Assignee: 3DMedia Corporation
    Inventors: Tassos Markas, Michael McNamer, Marshall Robers
  • Patent number: 9300857
    Abstract: An approach for sharpening an image, a raw digitized image is provided. One or more processors receive a raw digitized image. One or more processors identify a first set of one or more focus points of the raw digitized image that are in focus, wherein the first set of one or more focus points are associated with a first area of the raw digitized image. One or more processors may cause a depth map, including the raw digitized image and a mask, to be displayed. One or more processors apply sharpening of a first sharpening strength to the first set of one or more focus points of the raw digitized image that are in focus.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: March 29, 2016
    Assignee: International Business Machines Corporation
    Inventors: John F. Kelley, Stanley B. Lyzak, Jr., Kristin S. Moore, Todd P. Seager
  • Patent number: 9285654
    Abstract: A miniature MEMS autofocus camera module includes a MEMS actuated movable lens group and at least one fixed lens group defining an optical axis within a camera module housing. Objects disposed an arbitrary distance from the camera module are automatically focused at a determined zoom to an image sensor. MEMS actuation of the movable lens group is performed to accomplish autofocus functionality.
    Type: Grant
    Filed: March 10, 2013
    Date of Patent: March 15, 2016
    Assignee: DigitalOptics Corporation
    Inventors: Ariel Lipson, Uri Kinrot, Dalit Bahar, Moshe Kriman, Moshe Levy, Ocie Ward, Mark Harland
  • Patent number: 9160917
    Abstract: A handheld electronic apparatus, an image capturing apparatus and focusing method thereof are provided. The image capturing apparatus includes a main image capturer, an auxiliary image capturer and a controller. The main image capturer performs an image capturing operation on a target object according to a detection focusing distance. The auxiliary image capturer is disposed adjacent to the main image capturer. The auxiliary image capturer performs a plurality of focusing operations on the target object according to a plurality of focusing distances, and generates a plurality of image contrast values. The controller controls the main image capturer and the auxiliary image capturer. The controller selects one of the focusing distances to be the detection focusing distance according to the image contrast values.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: October 13, 2015
    Assignee: HTC CORPORATION
    Inventors: Ming-Tien Lin, Chun-Ta Lin, Chih-Jen Hu
  • Patent number: 9160931
    Abstract: An image capture system is described that includes: a first image capture device for capturing a first image, the first image capture device having a first field of view; a viewpoint assessment sensor having a second field of view. The image capture system also includes a viewpoint assessment component for determining the location of the user viewpoint in the second field of view and an image modification component for modifying the first image responsive to the user viewpoint in the second field of view.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: October 13, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ian N. Robinson, April Slayden Mitchell, Daniel G. Gelb
  • Patent number: 9152018
    Abstract: An image pickup lens includes an optical system that includes a magnification variable lens used for a magnification variation, and a focus lens configured to adjust an in-focus state, a wide attachment lens being configured to change an enlargement ratio of the image pickup lens and attachable to the optical system, and a manipulator manipulated so as to instruct driving of the magnification variable lens. A moving amount of the magnification variable lens per a predetermined manipulated amount of the manipulator when the wide attachment lens is attached is smaller than that when the wide attachment lens is not attached.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: October 6, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Daisuke Ishikawa
  • Patent number: 9097961
    Abstract: A focusing system includes a first drive unit for driving a first focus lens along the optical axis, a second drive unit for driving a second focus lens along the optical axis, a determining unit for periodically detecting a focus state of a subject image formed via the optical system and determining a focus position of the optical system based on the detected result, and a control unit for controlling the first and second drive units according to a result of determining the focus position of the optical system by the determining unit. The control unit controls the second drive unit to drive the second focus lens independently of the first focus lens, in the focus operation.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: August 4, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Naotaka Kishida, Kenji Kawazoe
  • Patent number: 9041854
    Abstract: An image pickup apparatus which can detect, when pixels have a structure in which part of electrical construction is shared therebetween, a defective pixel by taking into account a high possibility of the other pixels sharing the part of electrical construction becoming defective pixels, thereby making it possible to obtain an excellent image. A ROM stores in advance position information on each defective pixel. A defective pixel-detecting section detects a new defective pixel on which position information is not stored by the storage unit, from the pixels forming each pixel group, by performing one of different types of defective pixel detection processing. A system controller causes the defective pixel-detecting section to execute one of the different types of detection processing, according to the number of defective pixels which are included in each pixel group and on which the position information is stored in the storage unit.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: May 26, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kazuyoshi Kiyosawa, Yoshiaki Honda
  • Patent number: 9036071
    Abstract: An imaging apparatus includes a shooting lens having a focus lens for adjusting a degree of focus on an imaging plane; an image sensor converting an optical image of a photographic subject to an electric image signal and outputting it; a confirmation image creator creating a focus state confirmation image in which a part, or a whole of an image expressed by the image signal is enlarged; a display displaying the focus state confirmation image; and a focus evaluation value calculator calculating a focus evaluation value based on the image signal; wherein when a state of an inclination of change in a focus evaluation value calculated at a plurality of positions of the focus lens while moving the focus lens is different from a state of an inclination of change in a focus evaluation value calculated immediately before, the focus state confirmation image is displayed on the display.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: May 19, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Akihiro Yoshida, Noriaki Ojima
  • Patent number: 9030592
    Abstract: The interchangeable lens includes a focus actuator to move a focus lens, a memory storing speed control data for the focus actuator and end position data showing infinity side and close side end positions of a movable range of the focus lens, a lens controller to control the drive speed of the focus actuator by using the speed control data. The lens controller receives, from an image pickup apparatus, timing information showing a timing relating to acquisition of focus information, performs an end reachability determination for predictively determining, by using the timing information, the speed control data and the end position data, whether or not the focus lens reaches the infinity side or close side end position by a scheduled focus information acquisition timing, and sends information showing a result of the end reachability determination to the image pickup apparatus.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: May 12, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Minoru Uchiyama
  • Patent number: 9030593
    Abstract: An imaging apparatus is capable of preventing unintended shooting setting when a through-image is displayed at a zoom position different from a field angle for reach shooting. The imaging apparatus includes a recording control unit configured to record a zoom position taken before a start of a function for temporarily changing the zoom position as a first position, a zoom control unit configured to perform control to move the zoom position from the first position to a second position when the function is started, and from the second position to the first position when the function is ended, and a control unit configured to perform control, when the zoom position is at the second position by the function, not to make any changes according to an instruction for changing specific shooting setting.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: May 12, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tetsuya Hada
  • Patent number: 9025946
    Abstract: A camera system according to the present invention, comprising: an interchangeable lens comprising: a zoom position detecting section configured to detect a zoom position corresponding to a focal length of the photographing optical system; and a lens control section configured to input the zoom position and transmit it to the camera body, and a camera body comprising: a body control section configured to communicate with the lens control section, a focus detecting section configured to detect an in-focus position of a focus lens included in the photographing optical system, and a zoom position memory section configured to memorize the zoom position which is transmitted from the lens control section and received by the body control section, wherein when transmitting the in-focus position to the lens control section, the body control section transmits the memory zoom position memorized in the zoom position memory section to the lens control section.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: May 5, 2015
    Assignee: Olympus Corporation
    Inventor: Tetsuo Kikuchi
  • Patent number: 9007513
    Abstract: A document camera has an automatic focus function, and performs the automatic focus process for automatically adjusting the focus lens to the focal position in accordance with the subject distance when the document camera is started up, or when the focus key of the input operation section is operated. Further, when performing the automatic focus process, the document camera is arranged to detect the focal position in the state in which the zoom lens is temporarily moved to the telephoto end with shallow depth of field, and then restore the position of the zoom lens to the original position.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 14, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Shinji Sakurai
  • Patent number: 9001258
    Abstract: A first state where an image is captured with a predetermined exposure in which an aperture of a diaphragm is a first aperture and a shutter speed is a first shutter speed is changed to a second state where an image is captured with the predetermined exposure in which the aperture of the diaphragm is a second aperture larger than the first aperture and the shutter speed is a second shutter speed higher than the first shutter speed, and a focal point is adjusted. The second aperture is set to be as large as possible within a range of maintaining the predetermined exposure.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: April 7, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Ryuichi Shiohara
  • Patent number: 9001263
    Abstract: A driver circuit for a camera voice coil motor (VCM) is described. A first power switch selectively conducts current from a VCM node to a power supply node, and a second power switch selectively conducts current from the VCM node to a power return node. A pulse width modulation circuit controls the first and second power switches. In another embodiment, a switch mode current control circuit sources VCM current alternately from the power supply node and the power n node, into the VCM node. Other embodiments are also described and claimed.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: April 7, 2015
    Assignee: Apple Inc.
    Inventor: Richard H. Tsai
  • Patent number: 9001259
    Abstract: A method and apparatus for adjusting the focus of a camera. A rotatable focus member, when rotated, effects movement of an indicator element. The position of the indicator element is sensed by a sensing element and is passed to a controller within the camera. The controller prompts a motor to drive a focusing element of the camera in response to changes in the sensed position of the indicator element. The focus member effects movement of the indicator element by way of rolling resistance as opposed to sliding friction, allowing for more consistent and controlled manipulation.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 7, 2015
    Assignee: Fluke Corporation
    Inventors: Michael E. Loukusa, Justin M. Sheard, Brian R. Gattman
  • Patent number: 8982246
    Abstract: An imaging apparatus includes an obtaining unit that obtains lens information including information indicating resolution of an optical system with respect to a position of a zoom lens, an imaging sensor that captures a subject image formed through the optical system to output image information, an image processor that performs digital zoom to electronically enlarge a subject image by performing image processing on the image information outputted from an imaging sensor, and a controller that determines, based on the obtained lens information, whether the zoom lens is located in a predetermined position and controls the image processor to perform the digital zoom on the image information outputted from the imaging sensor, when the zoom lens is located in the predetermined position. The predetermined position is a position of the zoom lens where resolution of the optical system is larger than a predetermined value.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: March 17, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Koji Shibuno
  • Patent number: 8976287
    Abstract: A method and apparatus comprising a sensor array, a primary lens, and a moveable lens array. The sensor array comprises sensors arranged in an array in which the sensors are configured to generate image data. The primary lens is configured to direct light towards the sensor array. The moveable lens array comprises a number of lenses. The moveable lens array is moveable to a plurality of positions between the primary lens and the sensor array. Each lens in the number of lenses is configured to focus the light.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: March 10, 2015
    Assignee: The Boeing Company
    Inventors: Jonathan M. Saint Clair, David C. Soreide, Ordie Dean Butterfield
  • Patent number: 8970772
    Abstract: A digital photographing apparatus includes an exchangeable lens and a body unit to which the exchangeable lens is installed. The exchangeable lens includes a plurality of actuators and a storage unit that stores power consumption information related to driving of the plurality of actuators. The body unit includes an actuator controller that controls the driving of the plurality of actuators based on the power consumption information. Accordingly, the plurality of actuators included in the exchangeable lens may be stably controlled.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: March 3, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kenji Ishibashi
  • Patent number: 8970745
    Abstract: An imaging device 100 is equipped with an image acquisition unit 51, a first calculation unit 52 and a correction information calculation unit 53. The image acquisition unit 51 acquires image data including a luminance component and color components, via an optical system. The first calculation unit 52 detects shading of the luminance component included in the image data, and detects shading of the color difference components. The correction information calculation unit 53 calculates luminance shading correction coefficients and color difference shading correction coefficients. The correction information calculation unit 53 then converts the calculated color difference shading correction coefficients so as to have predetermined ratios with respect to the calculated luminance shading correction coefficients. A correction processing unit 62 corrects plural sets of image data on the basis of the converted color difference shading correction coefficients, and then performs pixel addition of the images.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: March 3, 2015
    Assignee: Casio Computer Co., Ltd.
    Inventor: Yoichi Murayama
  • Patent number: 8964102
    Abstract: Various embodiments of the present invention relate to an actuator driver in a camera module, and more particularly to methods, systems and devices of employing self-calibrated ringing compensation to improve the autofocus rate of the camera module that is driven by an actuator. Oscillation characteristics of the actuator are calibrated to control a sink current that drives the actuator during an autofocus. The actuator driver comprises a digital-to-analog converter (DAC), a filter, a current sink and a self calibration module. The self calibration module calibrates the free-oscillation frequency and damping coefficient, and accordingly, the DAC generates a voltage that may be subsequently bypassed, filtered or shaped by the filter. This voltage is further converted to the sink current by the current sink. Such self-calibrated ringing compensation allows close tracking of free oscillation, and may efficiently enhance the settling time of the lens and autofocus rate of the camera module.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: February 24, 2015
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Forrest B. Christo, Antonio Galimberti
  • Patent number: 8964101
    Abstract: An apparatus includes an imaging unit configured to photoelectrically convert an object image incident via a focus lens to acquire image data; a detection unit configured to detect a size and a position of an object based on the acquired image data; an adjustment unit configured to execute focus adjustment by acquiring a focus signal indicating a focusing state of the focus lens based on the image data while moving the focus lens, and moving the focus lens based on the focus signal; and a control unit configured to execute an operation if the detected size has changed, and to change the operation if the detected position has changed while the detected size has not changed.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: February 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Genjiro Shibagami
  • Patent number: 8947582
    Abstract: A digital photographing apparatus and a method of controlling the same. The digital photographing apparatus includes a body unit and an exchangeable lens installed to the body unit, wherein the exchangeable lens includes: a power zoom performer for performing a power zoom operation; and an iris for adjusting an amount light penetrating through an imaging lens, the body unit includes: an image pickup device for generating an image signal by capturing the light; a shutter for controlling light exposure of the image pickup device; and a release controller for controlling operations of the shutter and the iris, and the power zoom operation is prohibited when the release controller starts to drive the shutter or the iris. Accordingly, the power zoom operation is stably controlled.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: February 3, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kenji Ishibashi, Masataka Hamada