Patents Represented by Attorney Cowan Liebowitz & Latman, P.C.

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  • Communication system, communication apparatus, and communication method to minimize interference by transmission power control
    Patent number: 8046021
    Abstract: There is provided a communication control technique in which it is possible to avoid interference with another wireless communication system. This invention is characterized by a control station which controls wireless communication of dependent stations. When a dependent station newly starts, the control station determines whether a beacon transmitted by the dependent station is received by another wireless communication network. When determining that the beacon is received by the other wireless communication network, the control station instructs the dependent station to lower the transmission power until the beacon is not received.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: October 25, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tetsuo Kanda
  • Image processing apparatus, image processing method and medium
    Patent number: 8045229
    Abstract: An image processing apparatus comprises an extraction unit configured to extract areas having predetermined attributes from image data of a document; a calculation unit configured to calculate skew angles of the areas extracted by the extraction unit; a selection unit configured to select necessary elements by determining, as unnecessary elements, the areas having the calculated skew angles not less than a threshold and by determining, as the necessary element, the areas having the calculated skew angles less than the threshold; and a processing unit configured to apply image processing to the necessary elements selected by the selection unit.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: October 25, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshinori Ohashi
  • Image processing apparatus and method for composition of real space images and virtual space images
    Patent number: 8045825
    Abstract: A left-eye color discrimination unit (1101) and right-eye color discrimination unit (1102) generate mask images from virtual space images. If an error part exists at the boundary between a chroma key region and non-chroma key region in the mask image, each of a left-eye mask correction unit (1108) and right-eye mask correction unit (1110) corrects the error part using another mask image generated based on the other virtual space image in addition to the virtual space image.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: October 25, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohiko Shimoyama, Takuya Tsujimoto, Tomohiko Takayama
  • Color processing apparatus and method
    Patent number: 8044965
    Abstract: In order to calculate the calorimetric value of a color patch under a given viewing illuminant, a plurality of colorimetric value sets obtained by measuring the colors of color patches under a plurality of illuminants are stored in a memory, the type of spectral distribution and white point information of the viewing illuminant are obtained (S12), and a calorimetric value set corresponding to the type of spectral distribution of the viewing illuminant is selected (S13). A colorimetric value set under the viewing illuminant is calculated from the selected calorimetric value set, on the basis of the white point information of the viewing illuminant and the white point information of the illuminant of the selected colorimetric value set (S14).
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: October 25, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takahiro Suzuki
  • Image playback apparatus and playback method
    Patent number: 8041191
    Abstract: When the recording format of an image recorded on a magnetic tape (709) is changed, a playback time period of an image signal by a REC review function is extended. Even when the recording format is changed during playback of an image signal by the REC review function, an image (409) recorded in the recording format after change can be displayed after a blue-backed screen (408) is displayed. Therefore, the user can determine whether the blue-backed screen (408) is displayed due to switching of the system or due to an unrecorded part of an image signal. Hence, the user can be prevented from overwriting a new image signal on the recorded region of an image signal by mistake.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: October 18, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Katsuhiro Wada
  • Analyzation apparatus and control method thereof
    Patent number: 8041549
    Abstract: An analyzation apparatus which performs an analysis simulation in accordance with analysis condition data. An analysis condition modeling unit generates an analysis condition model data by assigning an analysis condition to each region of a three-dimensional model represented with analysis object model data of the analysis simulation based on analysis condition data set for the analysis simulation. A rendering unit renders the three-dimensional model represented with the analysis condition model data and displays the three-dimensional model on a display device.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: October 18, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Dai Matsumura, Yasuo Katano
  • Image capturing apparatus and image capturing apparatus control method
    Patent number: 8040407
    Abstract: An image capturing apparatus comprises: an acquisition unit; a smear detection unit; and a smear correction unit which corrects a level of pixels in a smear region in original image data by a first correction amount obtained by multiplying a smear amount by a first coefficient, thereby generating first image data, and corrects the level of pixels in the smear region in the original image data by a second correction amount obtained by multiplying the smear amount by a second coefficient, thereby generating second image data, wherein the first image data is used for at least either of image displaying and image recording, the second image data is used for at least one of exposure control, focus adjustment, and white balance control, and the first coefficient is smaller than the second coefficient.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: October 18, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shinya Hirai
  • Image sensing apparatus and control method
    Patent number: 8040415
    Abstract: An image sensing apparatus that controls exposure includes a signal processing unit for processing the output signal of a image sensing element, an aperture control unit for controlling aperture, and an external sensor for measuring the brightness of an object. In this case, exposure is controlled using the luminance information of both the image data and the external sensor, with the sampling period of the external sensor being set to be shorter than the accumulation period of the solid-state image sensing element. At least one of the aperture and the accumulation period is then controlled, based on the luminance information measured by the external sensor during the accumulation period.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: October 18, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shinya Urisaka
  • Communication apparatus and method
    Patent number: 8037218
    Abstract: A method of communication in a communication apparatus includes steps of suppressing communication with a first communication device, which has been connected to a first communication interface, in accordance with data from the first communication device; establishing communication with a second communication device by a second communication interface; removing suppression of communication with the first communication device after communication with the second communication device has been established; and communicating data between the first and second communication devices via the first communication and second communication interfaces.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: October 11, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenichi Fujii, Takatoshi Hirose, Hidetada Nago, Takahiro Shichino
  • Head-mounted display and head-mounted video display
    Patent number: 8035576
    Abstract: To shield a frame area 203b, a frame-like shield member 501 is superimposed over an LCD 203 while being separated from the LCD 203 by a distance L. The distance L satisfies L<2×(B?A)×f/D where f is a focal length of an optical system, D is a human pupil diameter determined statistically in advance, B is a width of the frame area, and A is a value determined statistically in advance as a width which will not be able to be shielded on a side of the frame area to be shielded by a side of the shield member.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: October 11, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiki Ishino, Toshiyuki Okuma, Takaaki Nakabayashi, Yoshihiro Saito
  • Whisk, in particular for culinary use
    Patent number: 8033713
    Abstract: A whisk, in particular for culinary use, having a handle and an active part with a predominately pear-shaped general shape and that is mounted on the handle. The whisk also includes an attachment clip mounted on the handle and that has a spatula-shaped end part at its free end. The attachment clip rests on the active part of the whisk and has an angled shape with a concavity that is turned towards the inside of the whisk.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: October 11, 2011
    Assignee: Mastrad SA
    Inventor: Mathieu Lion
  • Image processing apparatus, image processing method, computer program and computer-readable recording medium
    Patent number: 8037543
    Abstract: An image processing apparatus includes an alteration unit and a control unit. The alteration unit alters a first image file stored in a removable storage medium in order to generate a second image file. The control unit controls to store the second image file in the storage medium without deleting the first image file from the storage medium, if the first image file includes authentication data that is used to authenticate whether the first image file has been altered.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: October 11, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoru Wakao, Hiroki Yamashita
  • Optical element positioning apparatus
    Patent number: 8035905
    Abstract: An optical element positioning apparatus capable of moving an optical element from a storage state to a use state and improving the accuracy of positioning the optical element to a use position on an optical path. A holding member that holds the optical element is guided by guide shafts to be movable between the storage state and the use state. The holding member is provided with guide-supporting and receiving portions through which the guide shafts are slidably inserted. The guide shafts are supported by holding portions. A degree of freedom in positioning the holding member at the use position is provided. Holding-member positioning parts of the guide-supporting and receiving portions are pressed by an urging device against ends of the holding portions, whereby the holding member is positioned and held at the use position.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: October 11, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Harushige Yamamoto, Takumi Uehara, Kazushige Ichino
  • Motor drive unit and optical apparatus
    Patent number: 8035327
    Abstract: A motor drive unit includes a controller configured to drive a motor to a target position by using a first driving mode in which a state of energization of coils of the motor is switched in accordance with outputs from rotor position detectors and a second driving mode in which a state of energization of the coils is switched on the basis of a predetermined time interval. The controller turns on the energization of the coils during a predetermined time under an energization condition at a completion of driving to the target position when the rotor position detectors detect that the rotor position shifts from the target position after turning off the energization of the coils according to the completion of driving to the target position.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: October 11, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masao Mizumaki
  • Image capturing apparatus, control method therefor, and program
    Patent number: 8035699
    Abstract: An image capturing apparatus comprises an image capturing unit which has an image sensor, a storage unit which stores foreign substance information of a foreign substance adhering to an optical element arranged in front of the image sensor, a buffer unit which temporarily stores the image signal output from the image capturing unit, a correction unit which corrects, based on the foreign substance information, an image signal corresponding to a shadow of the foreign substance among image signals output from the buffer unit and outputs a corrected image signal, and a control unit which controls the buffer unit and the correction unit to change, in accordance with a free area of the buffer unit, an amount of the image signal corresponding to the shadow of the foreign substance that is to be corrected among image signals output from the image capturing unit.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: October 11, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasuyuki Ikeda
  • Information processing apparatus and method of reproducing content provided by said apparatus
    Patent number: 8032005
    Abstract: Content managed as a content directory is allowed to be selected from a playback apparatus on a network and the playback apparatus is allowed to play back the content. If playback of the content is suspended, the position at which playback was suspended is stored. This content is set in the content directory as virtual content. If this virtual content is selected, playback of the virtual content is resumed from the position at which suspension occurred.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: October 4, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Toyama, Hiroyasu Ito, Makoto Kobayashi, Kyohei Inukai
  • Brushless DC motor and image pickup apparatus
    Patent number: 8030865
    Abstract: A brushless DC motor configured to drive a driven member includes a rotor having a magnet, a stator having a coil configured to provide a rotational force to the magnet, a position detector configured to output a first signal that is periodic, in accordance with a rotating position of the rotor, a signal generator configured to generate a second signal by adding a lead angle to a phase of the first signal output from the position detector, an excitation switch configured to select an excitation to the coil in accordance with the second signal, and a phase change part configured to change the lead angle in accordance with at least one of a position and a moving direction of the driven member.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: October 4, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiromu Yasuda, Kousuke Kiyamura, Chikara Aoshima
  • Information processing apparatus, control method therefor, and program
    Patent number: 8031359
    Abstract: Job management information is analyzed to extract post printing process information on a post printing process from the job management information on the basis of the analysis result. A stylesheet corresponding to the extracted post printing process information is selected from a stylesheet storing unit which stores a stylesheet functioning as layout data for laying out and outputting post printing process information in accordance with the output form of an output destination. Work order form data of the corresponding post printing process is generated on the basis of the selected stylesheet and post printing process information.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: October 4, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiro Hino, Hiroyuki Amano, Toru Ushiku
  • Imaging apparatus, imaging method, and storage medium
    Patent number: RE42793
    Abstract: The object of this invention is to provide an imaging apparatus capable of providing a high-quality image optimum for medical diagnosis or the like by an arrangement for preventing any degradation in image quality due to the influence of electromagnetic noise and vibration caused by grid movement. In order to achieve this object, as operation control in receiving radiation transmitted through an object by an image sensing element through a movable grid and reading the accumulated signal from the image sensing element, a control device stops moving drive movement of the grid after the end of radiation irradiation for the object, and after the stop of moving drive stopping the movement, starts reading the accumulated signal from the image sensing element.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: October 4, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshikazu Tamura, Tatsuya Yamazaki, Akira Hirai
  • Imaging apparatus, imaging method, and storage medium
    Patent number: RE42852
    Abstract: The object of this invention is to provide an imaging apparatus capable of providing a high-quality image optimum for medical diagnosis or the like by an arrangement for preventing any degradation in image quality due to the influence of electromagnetic noise and vibration caused by grid movement. In order to achieve this object, as operation control in receiving radiation transmitted through an object by an image sensing element through a movable grid and reading the accumulated signal from the image sensing element, a control device stops moving drive movement of the grid after the end of radiation irradiation for the object, and after the stop of moving drive stopping the movement, starts reading the accumulated signal from the image sensing element.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: October 18, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshikazu Tamura, Tatsuya Yamazaki, Akira Hirai