Patents Assigned to Axis AB
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Patent number: 8761164Abstract: The invention relates to a method of transmitting a first segment of data via a data network from a transmitting unit having a first data transmission rate to a first destination having a first data reception rate. Where the first data transmission rate is larger than the first data reception rate, the method comprising: effectively reducing the first transmission rate from the transmitting unit to the first destination by switching between transmitting at least a part of the first segment as one or more data packets to the first destination in a direction only from the transmitting unit to the first destination, and transmitting at least a part of second segment as one or more data packets to one or more additional destinations in a direction only from the transmitting unit to the one or more additional destinations, the switching being repeated until said first segment and/or at least said second segment has been transmitted.Type: GrantFiled: October 29, 2008Date of Patent: June 24, 2014Assignee: Axis ABInventor: Mikael Starvik
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Publication number: 20140168432Abstract: A monitoring camera arranged to monitor a scene and a method of controlling camera settings for a monitoring camera arranged to monitor a scene wherein images are captured of different parts of the scene by altering a field of view of the camera, wherein data defining a camera settings control area within the scene is accessed, and it is determined if there is an overlapping region between a current field of view of the camera and the camera settings control area, and if there is an overlapping region, camera settings are controlled based on the overlapping region.Type: ApplicationFiled: December 18, 2013Publication date: June 19, 2014Applicant: Axis ABInventor: Johan NYSTROM
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Patent number: 8754975Abstract: A digital video camera performs a method to improve the image quality of captured images in a video image stream. The method includes capturing a first subset of images, outputting the images of the first subset of images as the video image stream, moving an image sensor and/or a lens of the digital video camera from a respective normal position to a respective test position before capturing an image of a second subset of images. The digital video camera captures a second subset of images interspersed with the first subset of images, compares image quality of the first subset of images with an image of the second subset of images, and determines if the image of the second subset of images exhibits improved image quality as compared with the image of the first subset of images. If so, an image quality improvement operation is initiated.Type: GrantFiled: December 13, 2011Date of Patent: June 17, 2014Assignee: Axis ABInventors: Jonas Hjelmstrom, Jan Sonnvik
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Publication number: 20140160308Abstract: A pan-tilt camera is arranged to include a camera head, a stationary unit, an intermediate member arranged between the camera head and the stationary unit, a first rotary joint rotatably connecting the camera head to the intermediate member, and a second rotary joint, rotatably connecting the intermediate member to the stationary unit. A communication path is provided between the camera head and the stationary unit, including an optical waveguide arranged between the camera head and the stationary unit. The optical waveguide has a first end positioned at the first rotary joint to receive light from the camera head through the first rotary joint. The other end of the waveguide is positioned at the second rotary joint and is arranged to send light to the stationary unit through the second rotary joint.Type: ApplicationFiled: February 13, 2014Publication date: June 12, 2014Applicant: AXIS ABInventors: Carl-Axel ALM, Stefan LUNDBERG, Willy SAGEFALK
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Patent number: 8749702Abstract: The invention relates to a network camera comprising an image acquisition part, an image processing part, a flat cable connecting the image acquisition part with a first end of the image processing part, and an inlet for an external data cable arranged at a second end of the image processing part. The image acquisition part is tiltable around a first axis in relation to the image processing part, the image processing part and the image acquisition part in combination are rotatable around a second axis, and the first and second axes are essentially perpendicular to each other.Type: GrantFiled: November 26, 2008Date of Patent: June 10, 2014Assignee: Axis ABInventor: Carl-Axel Alm
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Publication number: 20140152892Abstract: A method for de-interlacing interlaced video includes receiving a first video field and a second video field of an interlaced video frame, generating a first video frame from the first video field and a first synthesized video field, where video data of the first synthesized video field is based exclusively on video data of the first and second video fields, generating a second video frame from the second video field and a second synthesized video field, where video data of the second synthesized video field is based exclusively on the video data of the first and second video fields, and outputting two de-interlaced video frames for every received interlaced video frame. The first (second) synthesized video field is generated by combining image data from the second (first) video field with image data from corresponding lines of an up-scaled first (second) field generated by a scaler.Type: ApplicationFiled: February 6, 2014Publication date: June 5, 2014Applicant: AXIS ABInventor: Stefan LUNDBERG
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Publication number: 20140146185Abstract: The present invention relates to a method for generating real-time motion video. The method comprises receiving, at a video processing device, calibration data from a memory in an image sensor unit, the calibration data relating to properties of the image sensor unit. The video processing device receiving real-time raw image data from the image sensor unit via a communication cable and a communication protocol. The video processing device processing the real-time raw image data received from the image sensor unit, where the processing includes adjusting received image data based on at least part of the received calibration data and encoding the image data to a predetermined video format, and outputting the processed image data in real time.Type: ApplicationFiled: November 27, 2013Publication date: May 29, 2014Applicant: AXIS ABInventors: Per KANNERMARK, Stefan Lundberg
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Publication number: 20140132771Abstract: A method and a system is provided for monitoring an area by a monitoring camera (1). A protected zone (5) is defined within the monitored area (2) and a suspicious object (9a, 9b) is detected as an object present both inside and outside the protected zone. A key position of the suspicious object is determined, and it is determined if the key position is inside or outside the protected zone (5). If the key position is outside the protected zone a first action is triggered.Type: ApplicationFiled: November 12, 2013Publication date: May 15, 2014Applicant: Axis ABInventors: Daniel GUSTAFSSON, Willy SAGEFALK, Jonatan KAHRSTROM, Gustav TRAFF
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Publication number: 20140118571Abstract: A digital video camera that includes a photo sensor having a plurality of pixels, each pixel being arranged to obtain and output pixel data, a focusing device to set a focus of the digital video camera, a processing unit to process pixel data from a first subset of the pixels such that image frames of said video image stream are rendered based on pixel data in said first subset of pixels, and an array of micro lenses covering a second subset of the pixels, each of said micro lenses covering a number of pixels. The first subset of pixels is confined within an area and the second subset of pixels is arranged outside and adjacent to said first subset of pixels such that a frame of pixels of said second subset is formed around said first subset of pixels.Type: ApplicationFiled: October 15, 2013Publication date: May 1, 2014Applicant: Axis ABInventor: Gunnar DAHLGREN
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Patent number: 8713643Abstract: A method and apparatus are disclosed for configuring access privileges in a system of networked devices. A plurality of access identities is selected and information of access privileges of each of the selected access identities to accessible functions of networked devices is retrieved. The access privileges of the selected access identities for each one of said accessible function of each one of said networked devices is accumulated. The accumulated access privileges are presented for each one of said accessible function of each one of said networked devices in an interface allowing editing of the accumulated access privileges. Change in accumulated access privileges to a specific function in a specific networked device is indicated, and the specific function of the specific networked device is configured for allowing access by the selected users in accordance with the indicated change of accumulated access privileges.Type: GrantFiled: January 13, 2009Date of Patent: April 29, 2014Assignee: Axis ABInventors: Martin Rasmusson, John Rehn, Mattias Kindborg, Sebastian Hultqvist
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Patent number: 8706843Abstract: A network connector device and a method for making image information sent through a first digital network accessible by a second digital network. A first and a second network connector are arranged to pass on digital network traffic, a network traffic buffer buffers the digital network traffic, an image session identifier identifies a network session from the buffered digital network traffic, containing image information. An image session tracker tracks the identified network session containing image information, an image extractor extracts image information from the identified network session containing image information, and an image information buffer buffers the extracted image information. An image information arranger arranges the image information from the image information buffer into at least one image sequence of related images, and a server makes accessible the at least one image sequence via a third network connector.Type: GrantFiled: September 9, 2009Date of Patent: April 22, 2014Assignee: Axis ABInventors: Stefan Lundberg, Joacim Tullberg
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Patent number: 8699758Abstract: An object counter performs a method for counting objects that includes capturing images representing moving images of a predetermined counting view, detecting a motion region in the moving images of the predetermined counting view, calculating a motion region speed value indicating a speed of movement of the motion region. A contribution zone is repeatedly defined based on a predetermined counting boundary, the motion region speed value, and a contribution time period. A sub area value representing the size of the area of the motion region contained in the defined contribution zone is repeatedly retrieved and registered. A total area value is generated by adding a plurality of registered sub area values, and estimating the number of objects that have passed the counting boundary based on a reference object area value.Type: GrantFiled: November 15, 2011Date of Patent: April 15, 2014Assignee: Axis ABInventor: Johan Almbladh
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Publication number: 20140098286Abstract: A monitoring camera is connected to an external power source. The external power source has an external maximum power level. Image data is being processed in a first processing state. The monitoring camera detects (202) an event and determines (206) a type of the detected event. An amount of energy in an energy accumulator is determined (208) in the monitoring camera. Based on the type of the event and based on the external maximum power level and based on the determined amount of energy in the energy accumulator, a second processing state is determined (210). The second processing state requires a power level that is higher than the external maximum power level. Image data is then processed (212) in the second processing state.Type: ApplicationFiled: October 1, 2013Publication date: April 10, 2014Applicant: AXIS ABInventors: Per KANNERMARK, Andreas Nilsson
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Publication number: 20140093228Abstract: A method, performed by a monitoring device, may include detecting a temperature change, greater than a temperature change threshold, from a previous temperature to a current temperature; retrieving a trend-based motor position setting for a focus motor from a trend statistics memory based on the current temperature; and selecting a starting motor position setting for the focus motor based on the retrieved trend-based motor position setting or a current motor position setting. The method may further include performing a just noticeable difference modification on the focus motor using the selected starting motor position setting, wherein the just noticeable difference corresponds to a change in a motor position setting that results in a perceivable change in a focus level of the monitoring device, and selecting a temperature adjusted motor position setting for the focus motor based on a result of the just noticeable difference modification.Type: ApplicationFiled: September 28, 2012Publication date: April 3, 2014Applicant: AXIS ABInventors: Henning Gredegård, Björn Östby
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Publication number: 20140092277Abstract: An image acquisition device and a method for capturing image data is disclosed. The method comprises exposing an image sensor to light from a scene, selecting substantially all rows of sensor pixels in an image sensor in a substantially random order, starting an exposure period for each row of sensor pixels in the image sensor in the order the rows were selected, buffering the rows of sensor pixels comprised in an image frame until all rows of the image frame have registered image data for the presently captured image frame, and outputting image data representing the image frame by outputting image data from each row of sensor pixels.Type: ApplicationFiled: September 26, 2013Publication date: April 3, 2014Applicant: AXIS ABInventors: Per KANNERMARK, Anders JOHANNESSON
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Patent number: 8676027Abstract: A method and a video camera for recording an event initiated video sequence includes storing captured video frames in a video buffer, detecting a first event, and in response, initiating a video sequence recording session for recording of a video sequence in a non-volatile memory. Pre-event video frames and post-event video frames related to the first event are recorded, where the post-event time period starts at the detection of the first event. A first event delay time period is started in response to the expiration of the post-event time period. The video sequence recording session is closed if a delay period expires and no other event process is in progress.Type: GrantFiled: July 15, 2011Date of Patent: March 18, 2014Assignee: Axis ABInventor: Fredrik Hugosson
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Patent number: 8670071Abstract: A method for de-interlacing interlaced video includes receiving a first video field and a second video field, generating a first video frame by inserting the first video field in the first video frame on every second line of the first video frame, and by inserting a first synthesized video field on the lines of the first video frame not populated by the first video field. The video data of the first synthesized video field is based on video data of the first and second video fields. A second video frame is generated by inserting the second video field in the first video frame on every second line of the second video frame and by inserting a second synthesized video field on the lines of the second video frame not populated by the second video field. Two de-interlaced video frames are output for every received interlaced video frame.Type: GrantFiled: August 14, 2013Date of Patent: March 11, 2014Assignee: Axis ABInventor: Stefan Lundberg
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Patent number: 8670069Abstract: The present invention relates to a digital camera which comprises a sensor holder on which an image sensor is mounted and at least one adjustment ring. The adjustment ring is configured to rotate around an optical axis (OA) of the camera. The sensor holder and the at least one adjustment ring are configured to interact via at least one cam surface such that when the at least one adjustment ring is rotated with respect to the sensor holder, a normal direction of the sensor is adjusted in relation to a direction of the optical axis.Type: GrantFiled: January 13, 2012Date of Patent: March 11, 2014Assignee: Axis ABInventors: Magnus Sjoberg, Fredrik Sterngren
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Publication number: 20140063342Abstract: A method for de-interlacing interlaced video includes receiving a first video field and a second video field, generating a first video frame by inserting the first video field in the first video frame on every second line of the first video frame, and by inserting a first synthesized video field on the lines of the first video frame not populated by the first video field. The video data of the first synthesized video field is based on video data of the first and second video fields. A second video frame is generated by inserting the second video field in the first video frame on every second line of the second video frame and by inserting a second synthesized video field on the lines of the second video frame not populated by the second video field. Two de-interlaced video frames are output for every received interlaced video frame.Type: ApplicationFiled: August 14, 2013Publication date: March 6, 2014Applicant: AXIS ABInventor: Stefan LUNDBERG
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Patent number: D705334Type: GrantFiled: February 13, 2012Date of Patent: May 20, 2014Assignee: AXIS ABInventors: Kent Fransson, Jesper Olavi, Sven Svensson