Patents by Inventor Wai-Man Tam

Wai-Man Tam 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).

  • Publication number: 20230326558
    Abstract: Peptide sequencing is important in decoding data stored in a data-encoded peptide. Tandem mass spectrometry (MS/MS) is particularly useful for peptide sequencing. In a computer-implemented method for sequencing the data-encoded peptide from an experimental spectrum, raw data of the experimental spectrum are first preprocessed to remove uninterpretable peaks to yield preprocessed data. A first set of one or more candidate sequences contending for a peptide sequence of the peptide is identified from a spectrum graph. The spectrum graph is formed according to the preprocessed data rather than the raw data for generating a fewer number of candidate sequences to thereby reduce a time cost in sequencing. The first candidate-sequence set is then processed to estimate the peptide sequence to thereby obtain a set of peptide-sequence estimate(s). Each estimate is verified whether it is invalid. The set of peptide-sequence estimate(s) is purged to remove any invalid estimate.
    Type: Application
    Filed: April 10, 2023
    Publication date: October 12, 2023
    Inventors: Zhongping YAO, Cheuk Chi NG, Francis Chung Ming LAU, Wai Man TAM
  • Patent number: 11315023
    Abstract: Methods and systems for storing digital data into peptide sequences and retrieving digital data from peptide sequences are disclosed. The method for storing digital data into peptide sequences may include: encoding the digital data into a digital code; translating the digital code into the peptide sequences; and synthesizing the translated peptide sequences. The method for retrieving digital data from peptide sequences may include: sequencing and determining an order of the peptide sequences; converting the peptide sequences with the determined order into a digital code; and decoding the digital data from the digital code. Codes with error-correction capability are developed for encoding digital data into peptide sequences, and a computational method implemented in a software is developed for sequencing the digital data bearing peptides.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: April 26, 2022
    Assignee: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Zhongping Yao, Cheuk Chi Albert Ng, Chung Ming Lau, Wai Man Tam
  • Publication number: 20190318247
    Abstract: Methods and systems for storing digital data into peptide sequences and retrieving digital data from peptide sequences are disclosed. The method for storing digital data into peptide sequences may include: encoding the digital data into a digital code; translating the digital code into the peptide sequences; and synthesizing the translated peptide sequences. The method for retrieving digital data from peptide sequences may include: sequencing and determining an order of the peptide sequences; converting the peptide sequences with the determined order into a digital code; and decoding the digital data from the digital code. Codes with error-correction capability are developed for encoding digital data into peptide sequences, and a computational method implemented in a software is developed for sequencing the digital data bearing peptides.
    Type: Application
    Filed: December 19, 2018
    Publication date: October 17, 2019
    Inventors: Zhongping YAO, Cheuk Chi Albert NG, Chung Ming LAU, Wai Man TAM
  • Patent number: 9825650
    Abstract: This invention provides a cyclically-coupled (CC-) quasi-cyclic (QC-) low-density parity-check (LDPC) code and its decoder architecture. The essence of the invention is to introduce the convolutional nature to a plurality of individual block codes internally so as to form a resultant block code with a prolonged code length while slightly increasing the hardware complexity in decoder realization. The CC-QC-LDPC code is formed by cyclically coupling a plurality of sub-codes each being a QC-LDPC code such that overlapping of some variable nodes between two consecutive sub-codes results. The decoder comprises plural sub-decoders each configured to decode the channel messages for one sub-code. The sub-decoders are arranged in a ring shape such that an individual sub-decoder is configured to communicate edge messages with two neighboring sub-decoders adjacent to said individual sub-decoder in the decoding of the channel messages.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: November 21, 2017
    Assignee: The Hong Kong Polytechnic University
    Inventors: Chiu-Wing Sham, Jianfeng Fan, Wai Man Tam, Qing Lu, Chung Ming Lau
  • Publication number: 20160142074
    Abstract: This invention provides a cyclically-coupled (CC-) quasi-cyclic (QC-) low-density parity-check (LDPC) code and its decoder architecture. The essence of the invention is to introduce the convolutional nature to a plurality of individual block codes internally so as to form a resultant block code with a prolonged code length while slightly increasing the hardware complexity in decoder realization. The CC-QC-LDPC code is formed by cyclically coupling a plurality of sub-codes each being a QC-LDPC code such that overlapping of some variable nodes between two consecutive sub-codes results. The decoder comprises plural sub-decoders each configured to decode the channel messages for one sub-code. The sub-decoders are arranged in a ring shape such that an individual sub-decoder is configured to communicate edge messages with two neighboring sub-decoders adjacent to said individual sub-decoder in the decoding of the channel messages.
    Type: Application
    Filed: August 13, 2015
    Publication date: May 19, 2016
    Inventors: Chiu-Wing SHAM, Jianfeng FAN, Wai Man TAM, Qing LU, Chung Ming LAU
  • Patent number: 9031631
    Abstract: A head-mountable EEG electrode-containing device is provided based on radially adjustable electrodes to fit the wearer's unique head size and shape. The head-mountable device with an electrode array positioned therein includes multiple head-mountable device sections that are interconnected by mechanical fasteners to facilitate sizing and positioning of the head-mountable device. An array of resilient sleeves is positioned within each head-mountable device section. Each resilient sleeve houses an individual electrode and is deformable for self-orienting. The deformation of the sleeve is such that a central axis passing through the individual electrode housed within the resilient sleeve is maintained in a position approximately normal to a plane tangential to a scalp portion positioned beneath that electrode.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: May 12, 2015
    Assignee: The Hong Kong Polytechnic University
    Inventors: Kai Yu Tong, Bun Yu, Peter Man Kit Pang, Newmen Sze Kit Ho, Xiaoling Hu, Robert Wai Man Tam, Shu To Ng
  • Publication number: 20140213874
    Abstract: A head-mountable EEG electrode-containing device is provided based on radially adjustable electrodes to fit the wearer's unique head size and shape. The head-mountable device with an electrode array positioned therein includes multiple head-mountable device sections that are interconnected by mechanical fasteners to facilitate sizing and positioning of the head-mountable device. An array of resilient sleeves is positioned within each head-mountable device section. Each resilient sleeve houses an individual electrode and is deformable for self-orienting. The deformation of the sleeve is such that a central axis passing through the individual electrode housed within the resilient sleeve is maintained in a position approximately normal to a plane tangential to a scalp portion positioned beneath that electrode.
    Type: Application
    Filed: January 31, 2013
    Publication date: July 31, 2014
    Applicant: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Kai Yu TONG, Bun YU, Peter Man Kit PANG, Newmen Sze Kit HO, Xiaoling HU, Robert Wai Man TAM, Shu To NG
  • Patent number: 8540652
    Abstract: The present invention relates a system and method to allow users to train different joints of a limb in different planes. The rotation of the system can be driven by a motor to assist or resist the motion for training purpose. By the present invention, the user can use the device to switch training between the vertical and horizontal planes, without changing the device and any module. The system is also adjustable to meet different users' body sizes.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: September 24, 2013
    Assignee: The Hong Kong Polytechnic University
    Inventors: Kai Yu Tong, Rong Song, Chiu Hoi Lam, Wai Man Tam, Shu To Ng, Tak Chi Lee, Man Kit Peter Pang, King Lun Kwok, Yin Bonn Philip Tsui, Woon Fong Wallace Leung
  • Publication number: 20130212450
    Abstract: A Low-Density Parity-Check Convolutional Code (LPDCCC) decoder (10) for partial parallel decoding of low-density parity-check convolutional codes, the decoder comprising: a plurality of pipeline processors (11) to receive channel messages and edge-messages; each processor (11) having: a plurality of block processing units (BPUs) (13), each BPU (13) having a plurality of check node processors (CNPs) (14) to process check nodes that enter into the processor (11) and a plurality of variable node processors (VNPs) (15) to process variable nodes that are about to leave the processor (11); and a plurality of Random Access Memory (RAM) blocks (30) for dynamic message storage of the channel messages and the edge-messages; wherein in each processor (11), the VNPs (15) are directly connected to corresponding RAM blocks (30), and the CNPs (14) are directly connected to corresponding RAM blocks (30) such that the connections from the VNPs (15) and CNPs (14) to the corresponding RAM blocks (30) are pre-defined and fixed a
    Type: Application
    Filed: February 10, 2012
    Publication date: August 15, 2013
    Inventors: Chiu Wing SHAM, Xu Chen, Chung Ming Lau, Yue Zhao, Wai Man Tam
  • Patent number: 8196012
    Abstract: An approximated lower-triangle structure for the parity-check matrix of low-density parity-check (LDPC) codes which allows linear-time-encoding complexity of the codes is disclosed, and the parity part of the parity-check matrix is semi-deterministic which allows high flexibility when designing the LDPC codes in order to provide higher error-correction capabilities than a typical dual-diagonal structure.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: June 5, 2012
    Assignee: The Hong Kong Polytechnic University
    Inventors: Chung Ming Lau, Wai Man Tam, Chi Kong Tse
  • Publication number: 20110083052
    Abstract: A method for encoding data, the method comprising: creating m parity bits from k data bits based on a parity-check matrix (40), the parity-check matrix (40) including a data portion (41) and a parity portion (42), the parity portion (42) includes sub-block matrices, each sub-block matrix being any one from the group consisting of: zero matrix, identity matrix and permutation matrix; and forming a codeword containing the k data bits and the created m parity bits; wherein an upper diagonal is defined in the parity portion (42) starting from the first sub-block matrix in the second column extending to the second last sub-block matrix in the last column, and each sub-block matrix on the upper diagonal is an identity matrix or a permutation matrix, and the sub-block matrices (44) above the upper diagonal are zero matrices; each column from the second column to the third last column of the parity portion (42) contains one or more identity matrices or permutation matrices below the upper diagonal (45) and the remain
    Type: Application
    Filed: October 5, 2009
    Publication date: April 7, 2011
    Applicant: The Hong Kong Polytechnic University
    Inventors: Chung Ming Lau, Wai Man Tam, Chi Kong Tse
  • Patent number: 7854708
    Abstract: The present invention relates to devices and methods for a joint linkage device suitable for training multi-joints in a single limb. The joint linkage device is capable of rotation at a proximal end and a distal end. The device includes a proximal end having an upper plate, a middle plate, and a lower plate, a distal plate, a side bar, a main bar, a switch mechanism, and an extended bar. In use, a torque from a motor is applied to the upper plate to provide a user with an assistance torque, a resistance torque, or a assistance/resistance torque.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: December 21, 2010
    Inventors: Kai Yu Tong, Rong Song, Chiu Hoi Lam, Wai Man Tam, Kwok Kuen Kwong, Tak Chi Lee, Man Kit Peter Pang, King Lun Kwok, Mau Wah Chan, Woon Fong Wallace Leung
  • Publication number: 20080293551
    Abstract: The present invention relates to devices and methods for a joint linkage device suitable for training multi-joints in a single limb. The joint linkage device is capable of rotation at a proximal end and a distal end. The device includes a proximal end having an upper plate, a middle plate, and a lower plate, a distal plate, a side bar, a main bar, a switch mechanism, and an extended bar. In use, a torque from a motor is applied to the upper plate to provide a user with an assistance torque, a resistance torque, or a assistance/resistance torque.
    Type: Application
    Filed: May 22, 2007
    Publication date: November 27, 2008
    Applicant: The Hong Kong Polytechnic University
    Inventors: Kai Yu Tong, Rong Song, Chiu Hoi Lam, Wai Man Tam, Kwok Kuen Kwong, Tak Chi Lee, Man Kit Peter Pang, King Lun Kwok, Mau Wah Chan, Woon Fong Wallace Leung
  • Publication number: 20080294074
    Abstract: The present invention relates a system and method to allow users to train different joints of a limb in different planes. The rotation of the system can be driven by a motor to assist or resist the motion for training purpose. By the present invention, the user can use the device to switch training between the vertical and horizontal planes, without changing the device and any module. The system is also adjustable to meet different users' body sizes.
    Type: Application
    Filed: May 22, 2007
    Publication date: November 27, 2008
    Applicant: The Hong Kong Polytechnic University
    Inventors: Kai Yu Tong, Rong Song, Chiu Hoi Lam, Wai Man Tam, Shu To Ng, Tak Chi Lee, Man Kit Peter Pang, King Lun Kwok, Yin Bonn Philip Tsui, Woon Fong Wallace Leung
  • Patent number: 6351617
    Abstract: A method and apparatus for forming a single-exposure synthesized image on film is provided where an instantaneous image is combined with an image from a prepared picture on film. The preparation picture is reflected by a reflective mirror, and then is refracted by the objective lens of the camera to form a prepared image. The reflective mirror has a central hole that is located in front of the objective lens. The prepared picture also has a central hole, or a central transparent portion, and is located in a space between the objective lens and the reflective mirror, so that the reflecting surface of the reflective mirror faces the picture and the objective lens. Light rays from the prepared picture are reflected by the reflective mirror, pass through the central hole or the central transparent portion of the picture and through the objective lens to image the prepared picture image on the circumferential portion of the film.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: February 26, 2002
    Inventor: Wai-Man Tam