Patents Assigned to Mitsubishi Electric Information Technology
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Patent number: 8780818Abstract: A method for allocating, by a telecommunication device, at least first and second channel elements of a group of channel elements of a channel resource to a destination. The telecommunication device: selects, for the first channel element, a first randomization function according to the position of the first channel element within the group of channel elements and according to the destination; selects, for the second channel element, a second randomization function according to the position of the second channel element within the group of channel elements and according to the destination; processes the data to be included in the first channel element by the first randomization function and processes the data to be included in the first channel element by the second randomization function; and transfers the processed data.Type: GrantFiled: April 23, 2008Date of Patent: July 15, 2014Assignees: Mitsubishi Electric Information Technology Centre Europe B.V., Mitsubishi Electric CorporationInventors: Nicolas Gresset, Loic Brunel
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Patent number: 8285320Abstract: A method for controlling operation of a first base station of a wireless cellular telecommunication network including plural base stations and a server. The first base station sets transmission power of signals transferred by the first base station at a first transmission power value, detects a predetermined signal transferred by a mobile terminal, and if a predetermined signal is detected: establishes a communication link with the server, obtains from the server information identifying each second base station that manages a cell that is neighbor of the cell managed by the first base station and that is transferring signals at a second transmission power higher than the first transmission power value, establishes a communication link with each second base station, and sets the transmission power of the signals transferred by the first base station at a second transmission power value higher than the first transmission power.Type: GrantFiled: April 22, 2008Date of Patent: October 9, 2012Assignees: Mitsubishi Electric Information Technology Centre Europe B.V., Mitsubishi Electric CorporationInventor: Nicolas Voyer
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Patent number: 8154436Abstract: An object is detected by generating a m-ary primary signal having an irregular sequence of states. Each transition results in the transmission of a pulse encoded according to the type of transition. Reflected pulses are processed with a delayed, reference version of the primary signal. The presence of an object at a range corresponding to the delay is determined from the extent to which the reflected pulses coincide with transitions in the reference signal. In one aspect, transitions between states of the primary signal occur at varying time offsets with respect to nominal regular clock pulses. In another aspect, the object-detection system is operated while inhibiting the transmission of pulses, and if a significant output is obtained, the parameters of the transmitted signal are altered.Type: GrantFiled: October 23, 2006Date of Patent: April 10, 2012Assignee: Mitsubishi Electric Information Technology Centre Europe B.V.Inventor: Wieslaw Jerzy Szajnowski
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Patent number: 7715805Abstract: The present invention relates to a method for transmitting data between a transmitter provided with at least two transmitting antennas (ta1, ta2 . . . taNt) and a receiver. The method according to the invention further includes a symbol spreading step in the course of which components Zij (for i=I to S and j=I to Nt) of a predetermined number of successive symbols ZI . . . ZS are to be spread over time before being transmitted over said transmitting antennas (ta1, ta2 . . . taNt). The data transmitted at any given moment will thus not be representative of a single symbol Zi (for i=1 to S), as is the case in known MIMO systems, but will represent a mixture between Nt components of S successive symbols, which introduces data diversity with respect to time as perceived at the receiver end.Type: GrantFiled: July 9, 2004Date of Patent: May 11, 2010Assignees: Mitsubishi Electric Information Technology Center Europe B.V., Mitsubishi Denki Kabushiki KaishaInventors: Nicolas Gresset, Loic Brunel, Joseph Boutros
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Publication number: 20080193035Abstract: A one-dimensional representation of an image is obtained using a mapping function defining a closed scanning curve. The function is decomposed into component signals which represent different parts of the bandwidth of the representation using bi-directional filters to achieve zero group delay.Type: ApplicationFiled: March 14, 2006Publication date: August 14, 2008Applicants: Mitsubishi Electric Information Technology, Mitsubishi Denki Kabushiki KaishaInventors: Wieslaw Jerzy Szajnowski, Miroslaw Bober
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Publication number: 20080192864Abstract: Candidate moments within a pulse train are selected. For each such moment, it is determined whether pulses occur at uniform intervals both before and after the moment; if so, the relevant pulses are classified as belonging to a particular group. An accurate calculation of interpulse interval is carried out by working out the repetition interval from the times of arrival of the pulses relative to the candidate moment, and then taking a weighted angular average.Type: ApplicationFiled: October 12, 2007Publication date: August 14, 2008Applicant: Mitsubishi Electric Information Technology Centre Europe B.V.Inventor: Wieslaw Jerzy Szajnowski
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Publication number: 20070275668Abstract: The present invention relates to a method for transmitting data between a transmitter provided with at least two transmitting antennas (ta1, ta2 . . . taNt) and a receiver. The method according to the invention further includes a symbol spreading step in the course of which components Zij (for i=I to S and j=I to Nt) of a predetermined number of successive symbols ZI . . . ZS are to be spread over time before being transmitted over said transmitting antennas (ta1, ta2 . . . taNt). The data transmitted at any given moment will thus not be representative of a single symbol Zi (for i=1 to S), as is the case in known MIMO systems, but will represent a mixture between Nt components of S successive symbols, which introduces data diversity with respect to time as perceived at the receiver end.Type: ApplicationFiled: July 9, 2004Publication date: November 29, 2007Applicants: MITSUBISHI ELECTRIC INFORMATION TECHNOLOGY CENTER, MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Nicolas Gresset, Loic Brunel, Joseph Boutros
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Patent number: 7269285Abstract: A method of representing an object appearing in an image, the method comprising deriving a plurality of view descriptors of the object, each view descriptor corresponding to a different view of the object, and associating the two or more view descriptors, the method comprising indicating for each view descriptor when the respective view corresponds to a view of the object appearing in the image.Type: GrantFiled: July 6, 2001Date of Patent: September 11, 2007Assignees: Mitsubishi Electric Information Technology Centre Europe BV, Mitsubishi Denki Kabushiki KaishaInventors: Miroslaw Bober, James Cooper
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Patent number: 7257277Abstract: A method of representing an object appearing in a still or video image, by processing signals corresponding to the image, comprises deriving the peak values in CSS space for the object outline and applying a non-linear transformation to said peak values to arrive at a representation of the outline.Type: GrantFiled: June 21, 2005Date of Patent: August 14, 2007Assignees: Mitsubishi Electric Information Technology Centre Europe B.V., Mitsubishi Denki Kabushiki KaishaInventor: Miroslaw Z. Bober
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Publication number: 20060029136Abstract: A method of encoding a sequence of frames using 3-D decomposition including temporal filtering and using intra-frame prediction/interpolation, comprises (a) a first stage of intra-prediction/interpolation in which any neighbouring blocks may be used; (b) evaluating the intra-prediction/interpolation of step (a) for each block to identify blocks for intra-frame prediction; (c) a second stage of intra-prediction/interpolation wherein blocks identified in step (b) are not used for intra-prediction/interpolation of other blocks.Type: ApplicationFiled: June 30, 2005Publication date: February 9, 2006Applicant: Mitsubishi Electric Information Technology EtalInventors: Leszek Cieplinski, Jordi Caball, Soroush Ghanbari
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Patent number: 6952427Abstract: The present invention concerns a method for terminals to have access to a common resource of a network. It is characterised in that the said network defines the access conditions of a plurality of access classes and transmits the said conditions to all the terminals liable to have access to the said resource and in that a terminal wishing to have access to the said resource determines the access class to which it belongs according to its access state and gains access to the said resource according to the access conditions of the said access class thus determined.Type: GrantFiled: April 12, 2000Date of Patent: October 4, 2005Assignees: Mitsubishi Electric Information Technology Centre Europe B.V., Mitsubishi Denki Kabushiki KaishaInventors: Laure Seguin, Bertrand Houzel
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Publication number: 20050107048Abstract: A diversity switch combiner for use in systems for receiving multi-carrier wideband signals is arranged to determine, during a guard interval, which antenna provides the strongest carrier, for each of a plurality of carrier frequencies. A switch is then operated to select, for the subsequent symbol, that antenna which provides the greatest number of strongest carriers.Type: ApplicationFiled: November 10, 2004Publication date: May 19, 2005Applicant: Mitsubishi Electric Information Technology Centre Europe B.V.Inventors: Simon Saunders, Stephen Michael Leach
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Patent number: 6717979Abstract: A method for estimating a direction of arrival of a signal transmitted by a signal source and received by an antenna array. The method estimates the covariance matrix of the signals received by the antennas of the array and derives therefrom a direction of arrival. The received signals are correlated with a reference signal transmitted by the source prior to being submitted to the covariance matrix estimation.Type: GrantFiled: April 22, 2002Date of Patent: April 6, 2004Assignee: Mitsubishi Electric Information Technology Centre Europe B.V.Inventors: Alexandre Ribeiro Dias, Loïc Brunel
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Patent number: 6704578Abstract: A telecommunication system for mobiles of the type which has a network of base stations to which the mobiles can be connected and which is designed so that a mobile connected to a base station sends to the base station, besides user signals, power control commands in order that the base station controls its own transmission power so that the power received therefrom by the mobile is equal to a predetermined value. Each base station to which the mobile is connected regularly transmits, to the base stations to which the mobile is liable to be connected during a handover phase, the mean value of its transmission power. A base station, at the moment of the start of the handover phase, deduces, from the mean value and from the power control commands it receives from the mobile, the instantaneous value of the power emitted by the initial base station or stations at this moment and initializes its transmission power to a value derived from the instantaneous power.Type: GrantFiled: November 29, 2000Date of Patent: March 9, 2004Assignee: Mitsubishi Electric Information Technology Centre Europe B.V.Inventor: Nicolas Voyer
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Publication number: 20030072482Abstract: A method models a non-rigid three-dimensional object directly from a sequence of images. A shape of the object is represented as a matrix of 3D points, and a basis of possible deformations of the object is represented as a matrix of displacements of the 3D points. The matrices of 3D points and displacements forming a model of the object. Evidence for an optical flow is determined from image intensities in a local region near each 3D point. The evidence is factored into 3D rotation, translation, and deformation coefficients of the model to track the object in the video.Type: ApplicationFiled: February 22, 2001Publication date: April 17, 2003Applicant: Mitsubishi Electric Information Technology Center America, Inc. (ITA)Inventor: Matthew Brand
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Patent number: 6505255Abstract: A method for formatting and routing data between an external network and an internal IEEE 1394 network is provided. The method comprises receiving a data packet at a gateway device, separating data information from the data packet, reformatting the separated data information from a first digital format into a second digital format, selecting a transmission mode for communicating the data information in the second digital format to a particular node residing on the internal network, preparing a portion of the data information in the second digital format for transmission in the selected transmission mode, and transmitting the portion of the data information in the second digital format to the particular node via the selected transmission mode.Type: GrantFiled: April 29, 1999Date of Patent: January 7, 2003Assignee: Mitsubishi Electric Information Technology Center America, Inc. (ITA)Inventors: Shinji Akatsu, Fernando Masami Matsubara, Shin Miura
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Publication number: 20020138624Abstract: A computerized system enables multiple users of standard Internet web browsers to collaborate by having significant states of their browser, such as which web page is currently being viewed, scrollbar positions, and form values, to be remotely controlled by users of other Internet web browsers. The system uses a monitor to poll the static and dynamic state of the selected pages, and to communicate the state with a controller executing on a web server. The content of the collaboratively viewed pages is arbitrary because viewed pages remain unmodified. Therefore, pre-existing web pages can be collaboratively browsed. Each of the users is optionally a sender or a receiver of selected web pages, and therefore is allowed to control which web pages are collaboratively viewed.Type: ApplicationFiled: March 21, 2001Publication date: September 26, 2002Applicant: Mitsubishi Electric Information Technology Center America, Inc. (ITA)Inventor: Alan W. Esenther
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Publication number: 20020113799Abstract: A method constructs a super-resolution texture from a sequence of images of a non-rigid three-dimensional object. A shape of the object is represented as a matrix of vertices, and a basis of possible deformations of the object is represented as a matrix of displacements of the 3D points, the matrices of 3D points and displacements form a model of the object in the video. A set of correspondences between the points in model and the object in the images is formed. The points in each image are connected using the set of correspondences to form a triangle texture mesh for each image. Each triangle mesh is warped to a common coordinate system while super-sampling texture in each image. The warped and super-sampled triangle meshes are averaged to produce the super-sampled texture of the object in the image.Type: ApplicationFiled: February 22, 2001Publication date: August 22, 2002Applicant: Mitsubishi Electric Information Technology Center America, Inc.Inventor: Matthew Brand
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Patent number: 6154559Abstract: A system is provided to classify the gaze direction of an individual obseng a number of surrounding objects. The system utilizes a qualitative approach in which frequently occurring head poses of the individual are automatically identified and labelled according to their association with the surrounding objects. In conjunction with processing of eye pose, this enables the classification of gaze direction. In one embodiment, each observed head pose of the individual is automatically associated with a bin in a "pose-space histogram". This histogram records the frequency of different head poses over an extended period of time. Given observations of a car driver, for example, the pose-space histogram develops peaks over time corresponding to the frequently viewed directions of toward the dashboard, toward the mirrors, toward the side window, and straight-ahead.Type: GrantFiled: October 1, 1998Date of Patent: November 28, 2000Assignee: Mitsubishi Electric Information Technology Center America, Inc. (ITA)Inventor: Paul Anthony Beardsley
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Patent number: 6144698Abstract: A digital video decoder and method therefor receives a digital video signal and performs motion compensation on the digital video signal in the frequency domain. The motion compensation is performed by forming, for each inter-coded picture in the digital video signal, a composite picture in the frequency domain representing a reference picture corresponding to the inter-coded picture, and then adding the composite picture to the corresponding inter-coded picture. Each macro block of the composite picture is formed based on corresponding macro blocks of at least one anchor picture stored in memory. The anchor pictures are stored as compressed bits via quantization and variable length coding of frequency domain blocks to reduce required memory capacity. The synthesis technique employed by the compositor to form the composite macro blocks accounts for both field and frame motion compensation with half-pel accuracy.Type: GrantFiled: October 31, 1996Date of Patent: November 7, 2000Assignee: Mitsubishi Electric Information Technology Center America, Inc. (ITA)Inventors: Tommy C. Poon, Huifang Sun, Jay Bao, Anthony Vetro