Patents by Inventor Huan Wu

Huan Wu 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).

  • Patent number: 8724724
    Abstract: The present disclosure provides for the construction and use of a set of Zero-Correlation-Zone (ZCZ) Concatenated Complementary Pair (CCP) sequences with zero-correlation-zone range greater than one or with zero-correlation-zone range equal to one and the sequence set size greater than two. Complementary pair sequences A and B are selected and, for each member of the set of ZCZ CCP sequences, sign sequences pA and pB are combined with the complementary pair sequences to form a member ZCZ CCP sequence of the set. A ZCZ CCP sequence modified by propagation over a communication channel may be identified by cross-correlation with ZCZ CCP sequences of the set. A set of sign sequences may be constructed by recursive expansion from an initial set or found by a computer search. The sequences may be used in a transceiver of a portable electronic device or other communication device.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: May 13, 2014
    Assignee: BlackBerry Limited
    Inventors: Yan Xin, Yongkang Jia, Huan Wu, Shouxing Qu, Arnold Sheynman
  • Patent number: 8699712
    Abstract: The present document relates to the transmission of data in a digital cellular telecommunications network. In particular, the present document relates to the secure transmission of data over Global System for Mobile Communications (GSM) networks. A method for encoding a SACCH information block in a wireless network is described. The method comprises randomizing a plurality of randomization unit input bits derived from at least some of a plurality of payload bits of the SACCH information block using a pseudo-random bit block, thereby yielding a plurality of randomized bits; and ciphering a plurality of ciphering unit input bits derived from at least some of the plurality of randomized bits, thereby yielding an encoded data burst of a SACCH frame; wherein ciphering is based on a ciphering algorithm using a ciphering key Kc and a frame number COUNT of the SACCH frame; wherein the pseudo-random bit block is determined based on the ciphering key Kc.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: April 15, 2014
    Assignee: BlackBerry Limited
    Inventors: Yan Xin, Huan Wu, Raveendra Seetharam
  • Patent number: 8670495
    Abstract: Receivers and methods are provided that include multiple modes of processing signals from multiple antennas. These include legacy, SAIC (single antenna interference cancellation) and MSRD. Various methods are provided for selecting an appropriate receiver processing function. These include looking at correlation and gain imbalance between antennas, looking at the processing gain resulting from one or more of the receiver processing functions, and looking at the equalization quality of at least two receiver processing functions.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: March 11, 2014
    Assignee: BlackBerry Limited
    Inventors: Huan Wu, Sean Simmons
  • Publication number: 20140016721
    Abstract: A method and apparatus for peak to average power ratio reduction, the method precoding the data symbols using an inverse discrete Fourier transform (‘IDFT’), choosing, at a transmitter, a set of training sequence symbols from a plurality of sets of training sequence symbols, and creating, at the transmitter, an IDFT precoded burst by adding the IDFT of the data symbols and an IDFT of the chosen set of training sequence symbols. Further, a method and receiver, the method receiving a burst, performing a discrete Fourier transform on the burst, choosing a training sequence among a known plurality of training sequences sets, the chosen training sequence resulting in the least noise estimate among the plurality of training sequence sets, and demodulating the burst with the detected pilot burst.
    Type: Application
    Filed: February 21, 2011
    Publication date: January 16, 2014
    Inventors: Yan Xin, Shouxing Simon Qu, Huan Wu, Michael Eoin Buckley, Eswar Vutukuri
  • Publication number: 20140003474
    Abstract: The present disclosure provides for the construction and use of a set of Zero-Correlation-Zone (ZCZ) Concatenated Complementary Pair (CCP) sequences with zero-correlation-zone range greater than one or with zero-correlation-zone range equal to one and the sequence set size greater than two. Complementary pair sequences A and B are selected and, for each member of the set of ZCZ CCP sequences, sign sequences pA and pB are combined with the complementary pair sequences to form a member ZCZ CCP sequence of the set. A ZCZ CCP sequence modified by propagation over a communication channel may be identified by cross-correlation with ZCZ CCP sequences of the set. A set of sign sequences may be constructed by recursive expansion from an initial set or found by a computer search. The sequences may be used in a transceiver of a portable electronic device or other communication device.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Yan XIN, Yongkang JIA, Huan WU, Shouxing QU, Arnold SHEYNMAN
  • Publication number: 20140003557
    Abstract: The present disclosure provides for a method and apparatus for efficient cross-correlation between a reference sequence and a received sequence in a wireless communication system. The reference sequence includes a concatenation of sign-adjusted sub-sequences, the sign adjustments determined by a first sign sequence of a set of sign sequences. For example, the reference sequence may be an alternating concatenation of sign-adjusted Golay complementary pair sub-sequences. The received sequence is shifted to provide a plurality of time shifted sequences that are then cross-correlated with the sub-sequences to form a set of partial cross-correlations. The partial cross-correlations are sign-adjusted using the first sign sequence and combined to produce the cross-correlation between the reference sequence and the received sequence. The cross-correlations so produced may be used for channel signature (e.g. PHY-type) identification and/or channel impulse response estimation.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Huan WU, Yan XIN, Shouxing QU, Arnold SHEYNMAN
  • Publication number: 20140003475
    Abstract: The present disclosure provides for the construction and use of a set of Zero-Correlation-Zone (ZCZ) Concatenated Complementary Pair (CCP) sequences with zero-correlation-zone range greater than one or with zero-correlation-zone range equal to one and the sequence set size greater than two. Complementary pair sequences A and B are selected and, for each member of the set of ZCZ CCP sequences, sign sequences pA and pB are combined with the complementary pair sequences to form a member ZCZ CCP sequence of the set. A ZCZ CCP sequence modified by propagation over a communication channel may be identified by cross-correlation with ZCZ CCP sequences of the set. A set of sign sequences may be constructed by recursive expansion from an initial set or found by a computer search. The sequences may be used in a transceiver of a portable electronic device or other communication device.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Yan Xin, Yongkang Jia, Huan Wu, Shouxing Qu, Arnold Sheynman
  • Publication number: 20140002324
    Abstract: The antenna matching circuit control device with an antenna body includes a sensing module, a processing module, a power adjusting module and a frequency adjusting module. The sensing module senses an object that approaches the antenna body and outputs a sensing signal accordingly. The processing module is coupled to the sensing module and outputs a first control signal and a second control signal according to the sensing signal. The power adjusting module is coupled to the processing module and controls a power amplifier to couple with one of a plurality of first matching circuits according to the first control signal. The frequency adjusting module is coupled to the antenna body and the power adjusting module. The frequency adjusting module controls one of a plurality of second matching circuits to couple with one of the first matching circuits according to the second control signal.
    Type: Application
    Filed: September 5, 2013
    Publication date: January 2, 2014
    Applicant: ASUSTeK COMPUTER INC.
    Inventors: Chia-Hao CHANG, Meng-Huan WU, Kuo-Chu LIAO
  • Publication number: 20130286210
    Abstract: A bird-view image capture system and a bird-view image capture method thereof. The system comprises a plurality of image capture modules, a processing module, a compositing module and a display module. Therein, each of the plurality of image capture modules captures an image respectively. The processing module analyzes the plurality of images to get a plurality of first images and a plurality of second images. The processing module converts the plurality of first images and the plurality of second images respectively to get a plurality of inboard images and a plurality of outboard images. The compositing module composes the plurality of inboard images and the plurality of outboard images as a plurality of compositing images. The compositing module composes each compositing image to produce a bird-view image. The display module displays the bird-view image.
    Type: Application
    Filed: June 8, 2012
    Publication date: October 31, 2013
    Applicant: ALTEK AUTOTRONICS CORP.
    Inventors: Chih-Huan Wu, Chung-Fang Chien, Ching-Shyang Lo
  • Patent number: 8570236
    Abstract: The antenna matching circuit control device with an antenna body includes a sensing module, a processing module, a power adjusting module and a frequency adjusting module. The sensing module senses an object that approaches the antenna body and outputs a sensing signal accordingly. The processing module is coupled to the sensing module and outputs a first control signal and a second control signal according to the sensing signal. The power adjusting module is coupled to the processing module and controls a power amplifier to couple with one of a plurality of first matching circuits according to the first control signal. The frequency adjusting module is coupled to the antenna body and the power adjusting module. The frequency adjusting module controls one of a plurality of second matching circuits to couple with one of the first matching circuits according to the second control signal.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: October 29, 2013
    Assignee: Asustek Computer Inc.
    Inventors: Chia-Hao Chang, Meng-Huan Wu, Kuo-Chu Liao
  • Patent number: 8549468
    Abstract: The present invention discloses a system for generating a software TLM model, comprising a processing unit; a compiler coupled to the processing unit to generate target binary codes of a target software; a decompiler coupled to the processing unit to decompile the target binary codes into high level codes, for example C or C++ codes, to generate a functional model of the target software, wherein the functional model includes a plurality of basic blocks; an execution time calculating module coupled to the processing unit to calculate overall execution time of the plurality of the basic blocks of the functional model; a sync point identifying module coupled to the processing unit to identify sync points of the software transaction-level modeling model; and a time annotating module coupled to the processing unit to annotate the overall execution time of the basic blocks and the sync points into the functional model to obtain the software transaction-level modeling model.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: October 1, 2013
    Assignee: National Tsing Hua University
    Inventors: Meng-Huan Wu, Ren-Song Tsay
  • Publication number: 20130234998
    Abstract: A stylus includes a conductive rod, a circuit board, and an antenna. The conductive rod has a first opening. The circuit board is disposed in the conductive rod and includes a ground portion, wherein the conductive rod is electrically connected to the ground portion. The antenna includes a radiating portion and a feeding portion. The feeding portion is electrically connected to the circuit board and extends to the outside of the conductive rod via the first opening. The radiating portion is disposed at the outside of the conductive rod and is electrically connected to the feeding portion.
    Type: Application
    Filed: February 25, 2013
    Publication date: September 12, 2013
    Applicant: ASUSTeK COMPUTER INC.
    Inventors: Jen-Yu Wang, Wei-Cheng Lo, Yu-Chia Chang, Meng-Huan Wu, Chia-Hao Chang
  • Publication number: 20130179864
    Abstract: A deadlock free synchronization synthesizer for must-happen-before relations in at least two parallel programs or at least two threads each having multiple code segments has an input device to specify a synchronization point to involving code segments for each parallel program or thread and must-happen-before relations to the synchronization point, an analyzing module connected to the input device to detect existence of a deadlock in the parallel programs by using the must-happen-before relations, and a synthesizing module connected to the analyzing module to synthesize a practice code corresponding to the parallel programs if the deadlock existence detection is negative.
    Type: Application
    Filed: April 25, 2012
    Publication date: July 11, 2013
    Applicant: NATIONAL TSING HUA UNIVERSITY
    Inventors: Yi-Shan Lu, Hsien-Lun Pai, Meng-Huan Wu, Ren-Song Tsay
  • Patent number: 8438463
    Abstract: A user equipment (UE) comprising at least one component configured to decode a tail-biting convolution code (TBCC) by calculating a plurality of paths that correspond to a plurality of encoder starting states and trace back at least one of the calculated paths per at least one iteration until a trace-back convergence check (TCC) condition fails, wherein the TCC condition fails if a starting state of a first traced back path among the calculated paths is not equal to a starting state of a subsequent traced back path.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: May 7, 2013
    Assignee: Research In Motion Limited
    Inventors: Huan Wu, Sean Bartholomew Simmons
  • Patent number: 8431239
    Abstract: A article made by vacuum deposition, includes a substrate; and a color layer deposited on the substrate, wherein the color layer has an L* value between about 75 to about 80, an a* value between about ?5 to about ?10, and a b* value between about 15 to about 20 in the CIE LAB color space.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: April 30, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsin-Pei Chang, Wen-Rong Chen, Huan-Wu Chiang, Cheng-Shi Chen, Chuang Ma
  • Publication number: 20130093887
    Abstract: An obstacle detection system and a method thereof The obstacle detection system comprises an object detection module used to generate a detected distance and a detected direction of a external obstacle; a camera module used to capture a camera image including an obstacle image; a calculation module used to calculate a first region for the obstacle image in the camera image; and an object search module used to execute a first image processing on the camera image within the first region to obtain the obstacle image. If no obstacle is found within the first region, the calculation module is used to calculate a second region. The object search module is used to execute a second image processing within the second region to obtain the obstacle image.
    Type: Application
    Filed: January 11, 2012
    Publication date: April 18, 2013
    Applicant: ALTEK AUTOTRONICS CORP.
    Inventors: Chih-Huan Wu, Chung-Fang Chien
  • Patent number: 8423343
    Abstract: The present invention discloses a high-parallelism synchronization method for multi-core instruction-set simulation. The proposed method utilizes a new distributed scheduling mechanism for a parallel compiled MCISS. The proposed method can enhance the parallelism of the MCISS so that the computing power of a multi-core host machine can be effectively utilized. The distributed scheduling with the present invention's prediction method significantly shortens the waiting time which an ISS spends on synchronization.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: April 16, 2013
    Assignee: National Tsing Hua University
    Inventors: Meng-Huan Wu, Ren-Song Tsay
  • Patent number: 8401101
    Abstract: A training sequence helps optimize SNR degradation in a wireless communication. Various sets of training sequences may be stored in a repository, and transmitters and receivers encoded with such sequences transmit at least one of the sequences between them as part of the wireless transmission of data.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: March 19, 2013
    Assignee: Research In Motion Limited
    Inventors: Yan Xin, Huan Wu, Shouxing Qu
  • Patent number: 8397110
    Abstract: Apparatus, and an associated method, for estimating a bit error rate of data communicated to a receiving station of a digital communications system, such as a GSM/EDGE cellular communication system. Soft decision values, indicative of confidence levels that decided values have been correctly decided are compared with threshold values by a comparator. A count is accumulated by a counter whose counted value is representative of decided data values having low levels of confidence that the decided values are correct. The count value is used in the formulation of the BER estimation.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: March 12, 2013
    Assignee: Research In Motion Limited
    Inventors: Sean Simmons, Huan Wu
  • Publication number: 20130058485
    Abstract: The present document relates to the transmission of data in a digital cellular telecommunications network. In particular, the present document relates to the secure transmission of data over Global System for Mobile Communications (GSM) networks. A method for encoding a SACCH information block in a wireless network is described. The method comprises randomizing a plurality of randomization unit input bits derived from at least some of a plurality of payload bits of the SACCH information block using a pseudo-random bit block, thereby yielding a plurality of randomized bits; and ciphering a plurality of ciphering unit input bits derived from at least some of the plurality of randomized bits, thereby yielding an encoded data burst of a SACCH frame; wherein ciphering is based on a ciphering algorithm using a ciphering key Kc and a frame number COUNT of the SACCH frame; wherein the pseudo-random bit block is determined based on the ciphering key Kc.
    Type: Application
    Filed: September 2, 2011
    Publication date: March 7, 2013
    Inventors: Yan Xin, Huan Wu, Raveendra Seetharam