Patents by Inventor Tom-Ivar Johansen
Tom-Ivar Johansen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11374648Abstract: Radio link coverage mapping systems and related techniques are provided to improve the operation of unmanned mobile sensor or survey platforms. A radio or communication link coverage mapping system includes a logic device configured to communicate with a communication module and a position sensor coupled to a mobile platform, where the communication module is configured to establish a wireless communication link with a base station associated with the mobile platform and the position sensor is configured to provide a position of the mobile platform as it maneuvers within a survey area. The logic device determines communication link quality data associated with the wireless communication link as the mobile platform maneuvers within the survey area, receives corresponding position data, and generates corresponding communication coverage information, which may be used to generate a radio link coverage map.Type: GrantFiled: October 23, 2020Date of Patent: June 28, 2022Inventors: Petter Muren, Tom-Ivar Johansen, Torgeir Grothe Lien, Trygve F. Marton
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Publication number: 20210058143Abstract: Radio link coverage mapping systems and related techniques are provided to improve the operation of unmanned mobile sensor or survey platforms. A radio or communication link coverage mapping system includes a logic device configured to communicate with a communication module and a position sensor coupled to a mobile platform, where the communication module is configured to establish a wireless communication link with a base station associated with the mobile platform and the position sensor is configured to provide a position of the mobile platform as it maneuvers within a survey area. The logic device determines communication link quality data associated with the wireless communication link as the mobile platform maneuvers within the survey area, receives corresponding position data, and generates corresponding communication coverage information, which may be used to generate a radio link coverage map.Type: ApplicationFiled: October 23, 2020Publication date: February 25, 2021Inventors: Petter Muren, Tom-Ivar Johansen, Torgeir Grothe Lien, Trygve F. Marton
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Patent number: 10337864Abstract: The present invention relates to a system and a method for measuring and determining the depth, offset and translation in relation to one or several features in the field of view of an image sensor equipped UAV. The UAV comprises at least an autopilot system capable of estimating rotation and translation, processing means, height measuring means and one or more imaging sensor means. Given the estimated translation provided by the autopilot system, the objective of the present invention is achieved by the following method; capturing an image, initiating a change in altitude, capturing a second image, comparing the images and the change in height provided by the sensor to produce a scale factor or depth. If depth is estimated, then calculating the scale factor from the depth, and calculating the actual translation with the resulting scale factor.Type: GrantFiled: February 17, 2016Date of Patent: July 2, 2019Assignee: FLIR Unmanned Aerial Systems ASInventors: Jorunn Helene Melby, Jorgen Syvertsen, Petter Muren, Tom-Ivar Johansen
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Publication number: 20180051986Abstract: The present invention relates to a system and a method for measuring and determining the depth, offset and translation in relation to one or several features in the field of view of an image sensor equipped UAV. The UAV comprises at least an autopilot system capable of estimating rotation and translation, processing means, height measuring means and one or more imaging sensor means. Given the estimated translation provided by the autopilot system, the objective of the present invention is achieved by the following method; capturing an image, initiating a change in altitude, capturing a second image, comparing the images and the change in height provided by the sensor to produce a scale factor or depth. If depth is estimated, then calculating the scale factor from the depth, and calculating the actual translation with the resulting scale factor.Type: ApplicationFiled: February 17, 2016Publication date: February 22, 2018Inventors: Jorunn Helene Melby, Jorgen Syvertsen, Petter Muren, Tom-Ivar Johansen
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Patent number: 9462228Abstract: A system and a method allowing simultaneous exchange of audio, video or data information between a plurality of units over a communication network, supported by a central unit, wherein the central unit is, based on knowledge regarding one or more of the units, adapted to instruct said one or more units to generate multimedia data streams adjusted to fit into certain restrictions to be presented on other units participating in a same session.Type: GrantFiled: June 5, 2014Date of Patent: October 4, 2016Assignee: Cisco Technology, Inc.Inventors: Tom-Ivar Johansen, Geir Arne Sandbakken
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Publication number: 20140354766Abstract: A system and a method allowing simultaneous exchange of audio, video or data information between a plurality of units over a communication network, supported by a central unit, wherein the central unit is, based on knowledge regarding one or more of the units, adapted to instruct said one or more units to generate multimedia data streams adjusted to fit into certain restrictions to be presented on other units participating in a same session.Type: ApplicationFiled: June 5, 2014Publication date: December 4, 2014Applicant: CISCO TECHNOLOGY, INC.Inventors: Tom-Ivar Johansen, Geir Arne Sandbakken
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Patent number: 8773497Abstract: A system and a method allowing simultaneous exchange of audio, video or data information between a plurality of units over a communication network, supported by a central unit, wherein the central unit is, based on knowledge regarding one or more of the units, adapted to instruct said one or more units to generate multimedia data streams adjusted to fit into certain restrictions to be presented on other units participating in a same session.Type: GrantFiled: October 12, 2012Date of Patent: July 8, 2014Assignee: Cisco Technology, Inc.Inventors: Tom-Ivar Johansen, Geir Arne Sandbakken
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Patent number: 8289369Abstract: A system and a method allowing simultaneous exchange of audio, video or data information between a plurality of units over a communication network, supported by a central unit, wherein the central unit is, based on knowledge regarding one or more of the units, adapted to instruct said one or more units to generate multimedia data streams adjusted to fit into certain restrictions to be presented on other units participating in a same session.Type: GrantFiled: July 2, 2009Date of Patent: October 16, 2012Assignee: Cisco Technology, Inc.Inventors: Tom-Ivar Johansen, Geir Arne Sandbakken
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Publication number: 20100166059Abstract: A unified solution to coding/decoding of different video formats such as 4:2:0, 4:2:2 and 4:4:4 is provided. A method of video coding includes transforming a first m×n macro block of residual chrominance pixel values of moving pictures by a first integer-transform function generating a corresponding second m×n macro block of integer-transform coefficients, further transforming DC values of the integer-transform coefficients by a second integer-transform function to generate a third block of integer-transformed DC coefficients. The method further includes generating the second m×n macro block of integer-transform coefficients by utilizing a k×k integer-transform function on each k×k sub-block of the first m×n macro block, wherein n and m are each a multiple of k, and generating the third block of coefficients by utilizing a second ixj integer-transform function on the DC values resulting in a (m/k)×(n/k) third block of integer-transformed DC coefficients.Type: ApplicationFiled: March 12, 2010Publication date: July 1, 2010Applicant: TANDBERG TELECOM ASInventors: Tom-Ivar JOHANSEN, Gisle Bjøntegaard
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Patent number: 7720157Abstract: A method for creating a coded target Continuous Presence (CP) image according to a video coding standard from a number of coded video signals including defined orders of macroblocks, each including coded video signals corresponding to a respective endpoint video image, received from endpoints participating in a multipoint video conference, the method including: decoding the coded video signals with plural decoders to generate decoded video signals; spatially mixing the decoded video signals, resulting in a number of CP images including regions respectively associated with each of the endpoint video images with a mixing unit; encoding the CP images with plural encoders; and rearranging macroblocks of the encoded CP images to create the target coded CP image with one or more re-packer units.Type: GrantFiled: February 11, 2005Date of Patent: May 18, 2010Assignee: Tandberg Telecom ASInventors: Tom Erik Lia, Tom-Ivar Johansen
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Patent number: 7684489Abstract: A unified solution to coding/decoding of different video formats such as 4:2:0, 4:2:2 and 4:4:4 is provided. A method of video coding includes transforming a first m×n macro block of residual chrominance pixel values of moving pictures by a first integer-transform function generating a corresponding second m×n macro block of integer-transform coefficients, further transforming DC values of the integer-transform coefficients by a second integer-transform function to generate a third block of integer-transformed DC coefficients. The method further includes generating the second m×n macro block of integer-transform coefficients by utilizing a k×k integer-transform function on each k×k sub-block of the first m×n macro block, wherein n and m are each a multiple of k, and generating the third block of coefficients by utilizing a second i×j integer-transform function on the DC values resulting in a (m/k)×(n/k) third block of integer-transformed DC coefficients.Type: GrantFiled: May 12, 2004Date of Patent: March 23, 2010Assignee: Tandberg Telecom ASInventors: Tom-Ivar Johansen, Gisle Bjøntegaard
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Patent number: 7679648Abstract: The present invention utilizes video compression techniques in providing multi display and user control of picture layout with a single non-mechanical camera. According to a preferred embodiment of the present invention, a subsection of interest within a general view captured by the camera is coded based on the prediction of the main picture. In one aspect of the embodiment, scaling of the predicted pixel values in the subsection to match with the corresponding raw pixel data of extended resolution is carried out before subtracting the prediction from the raw data to provide the residual in the coding process. In a second aspect, the frame rate and the number of quantization intervals are increased when coding the subsection relative to the coding of the general view.Type: GrantFiled: September 22, 2005Date of Patent: March 16, 2010Assignee: Tandberg Telecom ASInventor: Tom-Ivar Johansen
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Publication number: 20100033550Abstract: A system and a method allowing simultaneous exchange of audio, video or data information between a plurality of units over a communication network, supported by a central unit, wherein the central unit is, based on knowledge regarding one or more of the units, adapted to instruct said one or more units to generate multimedia data streams adjusted to fit into certain restrictions to be presented on other units participating in a same session.Type: ApplicationFiled: July 2, 2009Publication date: February 11, 2010Applicant: TANDBERG TELECOM ASInventors: Tom-Ivar JOHANSEN, Geir Arne Sandbakken
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Patent number: 7586513Abstract: An arrangement and a method of localizing active speakers in a video conference includes a localization device that locates at least one microphone relative to the camera, while the at least one microphone in turn localizes the relative positions of audio sources. As the microphones are usually positioned close to the audio source in a video conference, the ratio of the distance between microphones relative to the distance between table microphone and audio source is reduced. Thus, the microphones are able to determine the positions of the audio sources with a higher resolution than if placed close to the camera. When the respective positions of the microphones relative to the camera and the audio source are known, the position of the audio source relative to the camera is then determined by means of geometrical calculations.Type: GrantFiled: April 7, 2004Date of Patent: September 8, 2009Assignee: Tandberg Telecom ASInventors: Petter Muren, Trygve Frederik Marton, Tom-Ivar Johansen
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Patent number: 7561179Abstract: A system and a method allowing simultaneous exchange of audio, video or data information between a plurality of units over a communication network, supported by a central unit, wherein the central unit is, based on knowledge regarding one or more of the units, adapted to instruct said one or more units to generate multimedia data streams adjusted to fit into certain restrictions to be presented on other units participating in a same session.Type: GrantFiled: November 15, 2004Date of Patent: July 14, 2009Assignee: Tandberg Telecom ASInventors: Tom-Ivar Johansen, Geir Arne Sandbakken
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Patent number: 7509553Abstract: A system, apparatus, method, and computer program product for detecting and correcting packet losses that adversely affect video quality. This packet loss feature may be employed as part of the secure video conference system, method and computer program product, or be employed in a non-secure system, method and computer program product.Type: GrantFiled: November 4, 2003Date of Patent: March 24, 2009Assignee: Tandberg Telecom ASInventors: Arild Fuldseth, Tom-Ivar Johansen, Andreas Kaljord, Steinar Midtskogen
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Publication number: 20060139466Abstract: The present invention utilizes video compression techniques in providing multi display and user control of picture layout with a single non-mechanical camera. According to a preferred embodiment of the present invention, a subsection of interest within a general view captured by the camera is coded based on the prediction of the main picture. In one aspect of the embodiment, scaling of the predicted pixel values in the subsection to match with the corresponding raw pixel data of extended resolution is carried out before subtracting the prediction from the raw data to provide the residual in the coding process. In a second aspect, the frame rate and the number of quantization intervals are increased when coding the subsection relative to the coding of the general view.Type: ApplicationFiled: September 22, 2005Publication date: June 29, 2006Inventor: Tom-Ivar Johansen
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Publication number: 20060023915Abstract: THE present invention discloses a system and method for automatically detecting the presence of a user in a presence application connected to a video conference endpoint. The presence detection is provided by active detection mechanisms monitoring the localities near the endpoint or terminal connected to the application. The presence information is centrally stores in a presence server collecting the information directly from the respective user terminals. According to preferred embodiments of the present invention, presence is determined by means of radar detection, infrared light detection, motion search in the video processing to the codec in the and face detection/recognition.Type: ApplicationFiled: June 7, 2005Publication date: February 2, 2006Inventors: Lars Aalbu, Tom-Ivar Johansen
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Publication number: 20050195275Abstract: The present invention relates to generating Continuous Presence (CP) images in a Multipoint Control Unit (MCU) managing a multisite videoconference. The invention utilises the bit structure of the ITU H.26* standards to reduce the processing time and requirements in an MCU for generating CP views without self-view. By rearranging macroblocks from coded CP images, regions in a CP image may be removed so as allow transmitting CP images without self view to the participating sites. The rearranging procedure significantly reduces the requirement of encoder resources in an MCU.Type: ApplicationFiled: February 11, 2005Publication date: September 8, 2005Inventors: Tom Lia, Tom-Ivar Johansen
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Publication number: 20050122392Abstract: A system and a method allowing simultaneous exchange of audio, video or data information between a plurality of units over a communication network, supported by a central unit, wherein the central unit is, based on knowledge regarding one or more of the units, adapted to instruct said one or more units to generate multimedia data streams adjusted to fit into certain restrictions to be presented on other units participating in a same session.Type: ApplicationFiled: November 15, 2004Publication date: June 9, 2005Applicant: Tandberg Telecom ASInventors: Tom-Ivar Johansen, Geir Sandbakken