Search Patents
  • Optical delay unit
    Publication number: 20030170030
    Abstract: An optical delay unit comprises a periodic wavelength demultiplexer having M (M is a natural number) input ports including a signal input port, M output ports including a signal output port, and periodic input/output characteristics for wavelengths between the M input ports and the M output ports, and (M−1) optical paths to connect each of the (M−1) output ports in which the signal output port is excluded from the M output ports of the periodic wavelength demultiplexer with any of the (M−1) input ports in which the signal input port is excluded from the M input ports of the periodic wavelength demultiplexer.
    Type: Application
    Filed: February 10, 2003
    Publication date: September 11, 2003
    Inventors: Masashi Usami, Kosuke Nishimura
  • Global metadata embedding and decoding
    Patent number: 8156153
    Abstract: Global metadata, such as a document identifier, which may be a globally unique identifier, is embedded into an embedded interactive code document by combining a first m-array and a plurality of copies of the first m-array to generate a combined m-array with encoded global metadata such that respective start positions (xd, yd)i of the plurality of copies of the first m-array in the combined m-array are each shifted, by respective amounts that are based on respective portions of the global metadata, relative to a start position of the first m-array in the combined m-array. Global metadata may be decoded from the combined m-array by determining the respective amounts by which the plurality of copies of the first m-array are shifted, relative to the first m-array, in the combined m-array and by combining the respective amounts to produce a decoded value of the global metadata.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: April 10, 2012
    Assignee: Microsoft Corporation
    Inventors: Jian Wang, Zhouchen Lin, Yue Li, Chunhui Zhang, Yingnong Dang, Jiang Wu, Qiang Wang
  • Method and apparatus for reconfiguring MBMS MDT in wireless communication system
    Patent number: 10111157
    Abstract: A method and apparatus for reconfiguring multimedia broadcast multicast service (MBMS) minimization of drive test (MDT) in a wireless communication system is provided. A user equipment (UE) receives a value tag for MBMS-MDT, and determines whether to perform MBMS-MDT reconfiguration by comparing the received value tag for MBMS-MDT with a stored value tag for MBMS-MDT. If the received value tag for MBMS-MDT and the stored value tag for MBMS-MDT are different from each other, the UE performs the MBMS-MDT reconfiguration. Alternatively, if a paging message includes an indicator of modification of the MBMS-MDT configuration, the UE acquires the MBMS-MDT configuration and performs the MBMS-MDT reconfiguration.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: October 23, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Sangwon Kim, Jaewook Lee
  • Digital image attribute plane compression
    Patent number: 9860427
    Abstract: An example embodiment may involve obtaining an m×n pixel cell from an input image. Each of the m×n pixels in the m×n pixel cell may be associated with at least one color value. An m×n attribute cell may be determined, elements of which may be associated in a one-to-one fashion with respective pixels in the m×n pixel cell. The m×n pixel cell may be compressed in a lossy fashion, and the m×n attribute cell may be compressed in a lossless fashion. Compression of the m×n pixel cell may be based on at least part of the m×n attribute cell. An interleaved representation of the compressed m×n pixel cell and the compressed m×n attribute cell may be written to an output medium.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: January 2, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Michael M. Chang, Kenneth A. Schmidt, Dongpei Su, Sheng Li, Kendrick Wong, Larry Lubman, Alfred Abkarian, Stephen L. Schafer
  • METHOD, SYSTEM AND APPARATUS FOR RECEIVING MULTICAST AND BROADCAST SERVICE
    Publication number: 20070268933
    Abstract: Embodiments of the present invention provide a method for receiving Multicast and Broadcast Service (MBS), includes: adding information of a next MBS_MAP message in a current MBS_MAP message; determining receiving information of the next MBS_MAP message according to the current MBS_MAP message and the information added in the current MBS_MAP message, receiving the next MBS_MAP message according to the receiving information determined, and receiving the MBS service according to the next MBS_MAP message received. The embodiments of the present invention also provide two other methods, apparatus and a system for receiving the MBS service. The method, system and apparatus provided by the embodiments of the present invention implement the continuous receiving of the MBS service without the requirement of frequent receiving the DL_MAP message.
    Type: Application
    Filed: May 10, 2007
    Publication date: November 22, 2007
    Inventors: Jianjun WU, Zhengfei XIAO
  • Acetylene and diacetylene compounds of transition metals
    Patent number: 8957234
    Abstract: A compound having the moiety M-[(C?C)n-M?]m. Each M and each M? is a transition metal. Each n is 1 or 2, and m is 2 or more. A method of reacting a transition metal halide with 1,2-dilithioacetylene or 1,4-dilithiodiacetylene to form a transition metal compound.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: February 17, 2015
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Manoj K. Kolel-Veetil, Teddy M. Keller
  • SYSTEM AND METHOD FOR LIMITING SPREAD OF WILDFIRE
    Publication number: 20220379149
    Abstract: The document relates to a method for limiting the spread of a wildfire, comprising: defining a fire limiting boundary (4); positioning a plurality of droplet generating units (1) along the fire limiting boundary (4); connecting said droplet generating units (1) to a liquid source (3); and activating said droplet generating units (1) so that a mist is applied to a border area (41) along said fire limiting boundary (4), said border area (41) having a width, as seen in a direction across the fire limiting boundary, which is 20-200 m, preferably 50-150 m, wherein said actuation of said droplet generating units (1) being initiated before the wildfire (5) is at least 500 m, preferably at least 1000 m, at least 2000 m, at least 5000 m, or at least 10,000 meters, from fire limiting boundary (4).
    Type: Application
    Filed: November 6, 2020
    Publication date: December 1, 2022
    Inventors: Lennart Nordlund, Johan Danielsson, Jan Ohlsson
  • Digital Image Attribute Plane Compression
    Publication number: 20160255247
    Abstract: An example embodiment may involve obtaining an m×n pixel cell from an input image. Each of the m×n pixels in the m×n pixel cell may be associated with at least one color value. An m×n attribute cell may be determined, elements of which may be associated in a one-to-one fashion with respective pixels in the m×n pixel cell. The m×n pixel cell may be compressed in a lossy fashion, and the m×n attribute cell may be compressed in a lossless fashion. Compression of the m×n pixel cell may be based on at least part of the m×n attribute cell. An interleaved representation of the compressed m×n pixel cell and the compressed m×n attribute cell may be written to an output medium.
    Type: Application
    Filed: May 10, 2016
    Publication date: September 1, 2016
    Inventors: Michael M. Chang, Kenneth A. Schmidt, Dongpei Su, Sheng Li, Kendrick Wong, Larry Lubman, Alfred Abkarian, Stephen L. Schafer
  • METHODS AND SYSTEMS FOR OPERATING A SIGNAL FILTER DEVICE
    Publication number: 20200243061
    Abstract: A method and system for operating a signal filter device are provided in the present disclosure. The signal filter device may include M adaptive filters, M first analysis filters, M second analysis filters, and a controller. M may be an integer above two. The method may include generating, by the M first analysis filters, M first sub-band signals based on an input signal. The method may also include generating, by the M second analysis filters, M second sub-band signals based on a reference signal. The method may further include adjusting, by the controller, the working states of the M adaptive filters based on correlations between the M first sub-band signals and the M second sub-band signals.
    Type: Application
    Filed: April 16, 2020
    Publication date: July 30, 2020
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Zhiyong SUN, Qi CHEN, Wei FANG
  • Uninterrupted multiple basic service set identifiers
    Patent number: 12232018
    Abstract: Systems and methods are provided for generating an MBSSID virtual access point (VAP) to facilitate an uninterrupted MBSSID. An access point (AP) can determine characteristics, or network properties, of VAPs associated with the AP. The AP can generate an MBSSID VAP based on the characteristics of the VAPs. An MBSSID beacon can be generated using the MBSSID VAP as a transmitted VAP (TX VAP) of the MBSSID beacon. The MBSSID VAP serves as a TX-VAP that is not subject to changes and does not need to be interrupted to have changes made to it. As the MBSSID VAP serves as a TX VAP that is not subject to changes or interruptions, the MBSSID based on the MBSSID VAP does not need to be interrupted for changes to be made to other VAPs associated with the MBSSID.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: February 18, 2025
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Subbiah Nagarajan Veerabudran, Andre Beaudin, Abhiruchi Dakshinkar, Omar El Ferkouss, Qiang Zhou
  • SIGNAL SEPARATION BASED ON A HYBRID SEPARATION MATRIX AND ANTENNA ARRAYS
    Publication number: 20070126631
    Abstract: A method for operating a communications device for separating M source signals provided by M signal sources includes receiving at K antenna arrays M different summations of the M source signals, where K<M. Each antenna array receives at least one different summation of the M source signals, with at least one of the antenna arrays receiving at least two different summations of the M source signals. The M different summations are used for forming a hybrid separation matrix as a function of the following: time differences between receipt of the M different summations of the M source signals by the K antenna arrays; a spatial fourth order cumulant matrix pencil based upon the time differences; a spatial correlation matrix based upon the spatial fourth order cumulant matrix; and steering vectors of the M different summations of the M source signals based upon the spatial correlation matrix.
    Type: Application
    Filed: February 7, 2007
    Publication date: June 7, 2007
    Applicant: InterDigital Technology Corporation
    Inventor: Steven Goldberg
  • Inorganic precursors for ionic conductors
    Patent number: 11764398
    Abstract: A method of synthesizing an inorganic precursor for an ionic conductor includes mixing at least one oxide of M with at least one halide of M, heating the mixture of the at least one oxide of M and the at least one halide of M and forming an MOX inorganic oxyhalide compound, and injecting defects in the MOX inorganic oxyhalide compound and forming a defect doped (MOX)? precursor for an ionic conductor. The element or component M is selected from at least one of Fe, Al, La, and Y, the at least one halide of M is selected from at least one of a fluoride of M, a chloride of M, a bromide of M, and an iodide of M, and the element or component X is at least one of F, Cl, Br, and I.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: September 19, 2023
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Shingo Ota, Ryuta Sugiura, Timothy S. Arthur, Nikhilendra Singh
  • Method and Device for Evaluating the Efficiency of a Noise Reducing Function for Audio Signals
    Publication number: 20080255834
    Abstract: A method of evaluating the efficiency of a noise-reducing function adapted to be applied to audio signals and comprising a preliminary step of obtaining a predefined test audio signal X[m] containing a noise-free wanted signal, a noisy signal Xb[m] obtained by adding a predefined noise signal to the test signal X[m], and a processed signal Y[m], obtained by applying the noise-reducing function to the noisy signal Xb[m], is remarkable in that it includes a loudness measuring step (E3, E4) for some or all the frames m of the aforementioned signals X[m], Xb[m] and Y[m].
    Type: Application
    Filed: September 12, 2005
    Publication date: October 16, 2008
    Applicant: FRANCE TELECOM
    Inventors: Valerie Gautier-Turbin, Nicolas Le Faucheur
  • Integrated circuit having lanes interchangeable between clock and data lanes in clock forward interface receiver
    Patent number: 11055241
    Abstract: An integrated circuit in a physical layer of a receiver is provided. The integrated circuit includes a multi-lane interface, a lane selection circuit and N sampling circuits. The multi-lane interface has N lanes. N is an integer greater than one. The lane selection circuit, coupled to the multi-lane interface, is configured to select M of the N lanes as M clock lanes, and output M signals on the M clock lanes respectively. M is a positive integer less than N. Remaining (N?M) lanes serve as (N?M) data lanes. The N sampling circuits are coupled to the multi-lane interface and the lane selection circuit. (N?M) of the N sampling circuits are coupled to the (N?M) data lanes respectively. Each of the (N?M) sampling circuits is configured to sample a signal on one of the (N?M) data lanes according to one of the M signals on the M clock lanes.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: July 6, 2021
    Assignee: M31 TECHNOLOGY CORPORATION
    Inventors: Yueh-Chuan Lu, Ching-Hsiang Chang
  • Organic electroluminescence element and lighting device using same
    Patent number: 9379359
    Abstract: The present disclosure relates to an organic electroluminescence element including: a substrate having a light transmissive property; a light diffusion layer; a light transmissive electrode; a light reflective electrode; and a light emitting layer. With regard to the first light emitting layer being the first closest light emitting layer to the light reflective electrode, the relation defined by following expression (2) is satisfied, ? [ FORMULA ? ? 1 ] ? ? ( ? m ) × ? m 4 ? ? + l + 0.1 2 ? ? m ? n m ? ( ? m ) × d m ? ? ? ( ? m ) × ? m 4 ? ? + l + 0.5 2 ? ? m ( 2 ) wherein, ?m represents the weighted average emission wavelength, Ø(?m) represents the phase shift, nm(?m) represents the average refractive index of a medium filling a space between the light reflective electrode and the first light emitting layer, and dm represents the distance from the light reflective electrode to the first light emitting layer.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: June 28, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuyuki Yamae, Yasuhisa Inada, Akira Hashiya
  • Method of and arrangement for digitizing a time-discrete video signal using a picture transform coding
    Patent number: 4398217
    Abstract: A method of and arrangement for digitizing a video signal using a picture transform coding, wherein a group of N video signal samples is converted into a group of N coefficients y(m) wherein m=1, 2, 3, . . . N which are each adaptively encoded.In order to prevent a coefficient y(m) which is on average small to very small, from being insufficiently accurately encoded, or not encoded at all, when it is occasionally large, the group of coefficients is compared with a number of fixed classification groups A(j) each consisting of M elements a(j,m), wherein a(j+l,m).gtoreq.a(j,m) and j=1, 2, 3, . . . M. The j is determined in such manner that y(m)<a(j,m) for all m.A bit-assignment group B(j) having elements b(j,m) is associated with each classification group A(j) and each one of the N coefficients y(m) is now converted into a code word z(m) which contains a number of bits which is characterized by b(j,m) and which is, for example, equal to the value of b(j,m).
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: August 9, 1983
    Assignee: U.S. Philips Corporation
    Inventor: Joseph H. Peters
  • Tire tread pitch sequencing for reduced noise
    Patent number: 6363984
    Abstract: A tire tread having design cycles or pitches in which the circumferential lengths of repeated pitches are randomly modulated in certain selected sequences to reduce the amount of noise generated by the tire tread when the tire rolls on a road surface. The pitch sequences include three different circumferential pitch lengths including a group having a largest number of medium length (M) pitches, a smallest number of shortest length pitches (S) and a medium number of longest length (L) pitches. In one embodiment, the ratio of the three different pitches are 0.8 for the smallest length pitch (S), 1 for the medium length pitch (M) and 1.2 for the longest length pitch (L). 100 pitch sequences are proposed with the sequence L M S M S L M L M L M L M L M M L M L M L M L M L M being the preferred sequence which provides the most noise reduction. Ninety nine other pitches are also within a range to provide an acceptable level of noise reduction in a tire tread.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: April 2, 2002
    Assignee: Kumho & Co, INC
    Inventor: Christopher D Morgan
  • Method of Deriving a Set of Features for an Audio Input Signal
    Publication number: 20080281590
    Abstract: The invention describes a method of deriving a set of features (S) of an audio input signal (M), which method comprises identifying a number of first-order features (f1, f2, . . . , ff) of the audio input signal (M), generating a number of correlation values (?1, ?2, . . . , PI) from at least part of the first-order features (f1, f2, . . . , ff), and compiling the set of features (S) for the audio input signal (M) using the correlation values (?1, ?2, . . . , ?I). The invention further describes a method of classifying an audio input signal (M) into a group, and a method of comparing audio input signals (M, M?) to determine a degree of similarity between the audio input signals (M, M?).
    Type: Application
    Filed: October 16, 2006
    Publication date: November 13, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Dirk Jeroen Breebaart, Martin Franciscus McKinney
  • MAGNETORESISTIVE ELEMENT FOR A 2D MAGNETIC SENSOR HAVING A REDUCED HYSTERESIS RESPONSE
    Publication number: 20230296703
    Abstract: A magnetoresistive element for a 2D magnetic sensor, the magnetoresistive element including a tunnel barrier layer included between a reference layer having a reference magnetization and a sense layer having a sense magnetization. The sense layer includes a sense synthetic antiferromagnetic structure including a first sense sublayer in contact with the tunnel barrier layer and separated from a second sense sublayer by a first non-magnetic spacer layer such that the first sense sublayer is antiferromagnetically coupled to the second sense sublayer. The sense layer is configured such that a sense magnetic ratio ?M defined as: ? M = M s F M 2 t F M 2 ? M s F M 1 t F M 1 M s F M 2 t F M 2 + M s F M 1 t F M 1 wherein MSFM1 and MSFM2 are the spontaneous magnetizations of the first and second sense sublayers and tFM1 and tFM2 are the thicknesses of the first and second sense sublayers; and wherein the sense magnetic ratio is between 0.1 and 0.25.
    Type: Application
    Filed: September 14, 2021
    Publication date: September 21, 2023
    Inventors: Andrey Timopheev, Nikita Strelkov, Jeffrey Childress
  • Method, System and Devices for Reducing Interferences in OFDMA Wireless Communication Networks
    Publication number: 20160269165
    Abstract: A system and method for reducing interferences in OFDM networks comprising generating (31) a set of pseudo-random coordination patterns {kin; i=0, . . . , N?1; n=0, . . . , M?1}, wherein kin are integers from 0 to M?1, M is the number of calls in a coordination cluster, N is the number of subcarriers, n is a cell identifier within the coordination cluster, and kin?kim?n?m, i=0, . . . , N?1; generating a randomizing pattern common to all cells within the coordination cluster, comprising an invertible transformation in the time domain of the complex symbols for each subcarrier; spreading (32) the complex symbols over M TTIs: b ? [ i , m ] = M ? ? m = 0 T - 1 ? ? a ? [ i , n ] ? exp ? [ - j2? ? ( Mn + k i ) · m / ( M · T ) ] . wherein a[i,n] denotes the symbols prior to the spreading (32), b[i,m] denotes the symbols after the spreading (32), 0?k1?M?1, i=0, . . . , N?1, m=0, . . .
    Type: Application
    Filed: February 23, 2016
    Publication date: September 15, 2016
    Inventor: Javier Lorca Hernando
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