Patents by Inventor Philip Yiu Kwong Chan

Philip Yiu Kwong Chan 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: 10867150
    Abstract: Low power input object settlement detection systems and methods for operating a capacitive sensor having a plurality, M, of transmitter electrodes and a plurality, N, of receiver electrodes, wherein N and M are integer values. A plurality of input object settlement scans are captured, when a presence of an input object is detected, or in response to a presence of an input object being detected, wherein capturing each input object settlement scan includes driving all or a portion of the plurality, M, of transmitter electrodes simultaneously and detecting receiver signals from at least a subset of the plurality, N, of receiver electrodes simultaneously. When a difference between subsequent input object settlement scans is below a threshold value, a full input object image is acquired.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: December 15, 2020
    Assignee: Synaptics Incorporated
    Inventors: Guozhong Shen, Ozan Ersan Erdogan, Syed Mahmud, Philip Yiu Kwong Chan, Nan Wang
  • Patent number: 10380402
    Abstract: A system and method are disclosed for conserving power during navigation, e.g., user device pointer/cursor navigation, using a fingerprint image sensor, that may comprise processing, via a computing device, fingerprint image sensor data indicative of finger position and movement with respect to a fingerprint image sensor surface in a finger navigation mode to determine if the finger is in a first finger navigation mode; processing, via the computing device, fingerprint image sensor data indicative of finger position and movement with respect to a fingerprint image sensor surface in a finger navigation mode to determine if the finger is in a second finger navigation mode; and transitioning, via the computing device, the fingerprint image sensor from a first power consumption mode to a second power consumption mode, based on detecting a transition from the first finger navigation mode to the second finger navigation mode.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: August 13, 2019
    Assignee: Synaptics Incorporated
    Inventors: Erik Jonathon Thompson, Frank Schwab, Anthony P. Russo, Bjoren Davis, Charles Bellman, Gregory Lewis Dean, Philip Yiu Kwong Chan, Jaswinder Jandu
  • Publication number: 20190080135
    Abstract: Low power input object settlement detection systems and methods for operating a capacitive sensor having a plurality, M, of transmitter electrodes and a plurality, N, of receiver electrodes, wherein N and M are integer values. A plurality of input object settlement scans are captured, when a presence of an input object is detected, or in response to a presence of an input object being detected, wherein capturing each input object settlement scan includes driving all or a portion of the plurality, M, of transmitter electrodes simultaneously and detecting receiver signals from at least a subset of the plurality, N, of receiver electrodes simultaneously. When a difference between subsequent input object settlement scans is below a threshold value, a full input object image is acquired.
    Type: Application
    Filed: September 12, 2018
    Publication date: March 14, 2019
    Inventors: Guozhong Shen, Ozan Ersan Erdogan, Syed Mahmud, Philip Yiu Kwong Chan, Nan Wang
  • Publication number: 20180068161
    Abstract: A system and method are disclosed for conserving power during navigation, e.g., user device pointer/cursor navigation, using a fingerprint image sensor, that may comprise processing, via a computing device, fingerprint image sensor data indicative of finger position and movement with respect to a fingerprint image sensor surface in a finger navigation mode to determine if the finger is in a first finger navigation mode; processing, via the computing device, fingerprint image sensor data indicative of finger position and movement with respect to a fingerprint image sensor surface in a finger navigation mode to determine if the finger is in a second finger navigation mode; and transitioning, via the computing device, the fingerprint image sensor from a first power consumption mode to a second power consumption mode, based on detecting a transition from the first finger navigation mode to the second finger navigation mode.
    Type: Application
    Filed: November 7, 2017
    Publication date: March 8, 2018
    Inventors: Erik Jonathon Thompson, Frank Schwab, Anthony P. Russo, Bjoren Davis, Charles Bellman, Gregory Lewis Dean, Philip Yiu Kwong Chan, Jaswinder Jandu
  • Patent number: 9836638
    Abstract: A system and method are disclosed for conserving power during navigation, e.g., user device pointer/cursor navigation, using a fingerprint image sensor, that may comprise processing, via a computing device, fingerprint image sensor data indicative of finger position and movement with respect to a fingerprint image sensor surface in a finger navigation mode to determine if the finger is in a first finger navigation mode; processing, via the computing device, fingerprint image sensor data indicative of finger position and movement with respect to a fingerprint image sensor surface in a finger navigation mode to determine if the finger is in a second finger navigation mode; and transitioning, via the computing device, the fingerprint image sensor from a first power consumption mode to a second power consumption mode, based on detecting a transition from the first finger navigation mode to the second finger navigation mode.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: December 5, 2017
    Assignee: Synaptics Incorporated
    Inventors: Erik Jonathon Thompson, Frank Schwab, Anthony P. Russo, Bjoren Davis, Charles Bellman, Gregory Lewis Dean, Philip Yiu Kwong Chan, Jaswinder Jandu
  • Patent number: 9665762
    Abstract: A biometric authentication apparatus and method is disclosed which may comprise a biometric authentication unit which may comprise: a biometric object sensor comprising sensor elements and a sensor computing device; a wake-on-event logic controller maintaining the sensor computing device in one of a powered-off or powered down mode, and including a bulk biometric object detector configured to detect a biometric object on or in the vicinity of the sensor elements and to power-on or power-up the sensor computing device responsive to the detection of the biometric object on or in the vicinity of the sensor elements; the sensor computing device configured to analyze one or more lines of biometric object image comprising a partial biometric object image and determine if the partial biometric image belongs to a biometric object desired to be imaged to obtain a complete biometric object image, and to provide a power-on or power-up signal to a host electronic device computing device when the partial biometric image i
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: May 30, 2017
    Assignee: Synaptics Incorporated
    Inventors: Erik Jonathon Thompson, Charles Walter Bellman, Anthony P. Russo, Philip Yiu Kwong Chan, Bjoren Kurt Davis, Gregory Lewis Dean, Richard Alexander Erhart, Jaswinder Jandu, Ty Bao Lien, Frank Schwab
  • Publication number: 20160104025
    Abstract: A system and method are disclosed for conserving power during navigation, e.g., user device pointer/cursor navigation, using a fingerprint image sensor, that may comprise processing, via a computing device, fingerprint image sensor data indicative of finger position and movement with respect to a fingerprint image sensor surface in a finger navigation mode to determine if the finger is in a first finger navigation mode; processing, via the computing device, fingerprint image sensor data indicative of finger position and movement with respect to a fingerprint image sensor surface in a finger navigation mode to determine if the finger is in a second finger navigation mode; and transitioning, via the computing device, the fingerprint image sensor from a first power consumption mode to a second power consumption mode, based on detecting a transition from the first finger navigation mode to the second finger navigation mode.
    Type: Application
    Filed: December 1, 2015
    Publication date: April 14, 2016
    Inventors: Erik Jonathon Thompson, Frank Schwab, Anthony P. Russo, Bjoren Davis, Charles Bellman, Gregory Lewis Dean, Philip Yiu Kwong Chan, Jaswinder Jandu
  • Patent number: 9268991
    Abstract: A system and method is disclosed for comparing biometric image data to a stored enrollment template that may comprise collecting a set of biometric image data for a biometric object image from a biometric object imaging sensor; storing the biometric object image data in a memory as an enrollment template for further comparison to find a match with subsequently imaged biometric object image data; collecting a subsequent set of biometric image data for a biometric object image from the biometric object imaging sensor; updating the enrollment template; determining if a limited enrollment window remains open; and repeating the collecting of a subsequent set of biometric data step if the enrollment window remains open. Determining if the enrollment window remains open may be by determining the existence of one of a stability indicator and an instability indicator.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: February 23, 2016
    Assignee: Synaptics Incorporated
    Inventors: Anthony P. Russo, Larry E. Hattery, Rohini Krishnapura, Philip Yiu Kwong Chan
  • Patent number: 9208371
    Abstract: A system and method are disclosed for conserving power during navigation, e.g., user device pointer/cursor navigation, using a fingerprint image sensor, that may comprise processing, via a computing device, fingerprint image sensor data indicative of finger position and movement with respect to a fingerprint image sensor surface in a finger navigation mode to determine if the finger is in a first finger navigation mode; processing, via the computing device, fingerprint image sensor data indicative of finger position and movement with respect to a fingerprint image sensor surface in a finger navigation mode to determine if the finger is in a second finger navigation mode; and transitioning, via the computing device, the fingerprint image sensor from a first power consumption mode to a second power consumption mode, based on detecting a transition from the first finger navigation mode to the second finger navigation mode.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: December 8, 2015
    Assignee: Synaptics Incorporated
    Inventors: Erik Jonathon Thompson, Frank Schwab, Anthony P. Russo, Bjoren Davis, Charles Bellman, Gregory Lewis Dean, Philip Yiu Kwong Chan, Jaswinder Jandu
  • Patent number: 8904495
    Abstract: A user transaction request is received at a client device. A web browser plug-in communicates the user transaction request to a server that determines whether the user transaction request is a secure transaction. Transaction data is received from the server via the web browser plug-in. If the received transaction data indicates a secure transaction, the user is prompted to provide biometric data, which is received from the user. The web browser plug-in then communicates a transaction confirmation to the server.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: December 2, 2014
    Assignee: Synaptics Incorporated
    Inventors: Davit Baghdasaryan, Ramesh Kesanupalli, Frank Schwab, Philip Yiu Kwong Chan, Larry Hattery
  • Patent number: 8799666
    Abstract: An apparatus includes a biometric sensor capable of identifying biometric information associated with a user. A storage device coupled to the biometric sensor stores user information. A biometric service is coupled to the biometric sensor and capable of communicating with the biometric sensor. A web browser application having a biometric extension communicates with the biometric sensor via the biometric service. The web browser's biometric extension is capable of communicating with multiple web servers.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: August 5, 2014
    Assignee: Synaptics Incorporated
    Inventors: Ramesh Kesanupalli, Davit Baghdasaryan, Frank Schwab, Philip Yiu Kwong Chan, Larry Hattery
  • Publication number: 20140198960
    Abstract: A biometric authentication apparatus and method is disclosed which may comprise a biometric authentication unit which may comprise: a biometric object sensor comprising sensor elements and a sensor computing device; a wake-on-event logic controller maintaining the sensor computing device in one of a powered-off or powered down mode, and including a bulk biometric object detector configured to detect a biometric object on or in the vicinity of the sensor elements and to power-on or power-up the sensor computing device responsive to the detection of the biometric object on or in the vicinity of the sensor elements; the sensor computing device configured to analyze one or more lines of biometric object image comprising a partial biometric object image and determine if the partial biometric image belongs to a biometric object desired to be imaged to obtain a complete biometric object image, and to provide a power-on or power-up signal to a host electronic device computing device when the partial biometric image i
    Type: Application
    Filed: February 13, 2013
    Publication date: July 17, 2014
    Applicant: Synaptics Incorporated
    Inventors: Erik Jonathon THOMPSON, Charles Walter BELLMAN, Anthony P. Russo, Philip Yiu Kwong CHAN, Bjoren Kurt DAVIS, Gregory Lewis DEAN, Richard Alexander ERHART, Jaswinder JANDU, Ty Bao LIEN, Frank SCHWAB
  • Publication number: 20140093143
    Abstract: A system and method are disclosed for conserving power during navigation, e.g., user device pointer/cursor navigation, using a fingerprint image sensor, that may comprise processing, via a computing device, fingerprint image sensor data indicative of finger position and movement with respect to a fingerprint image sensor surface in a finger navigation mode to determine if the finger is in a first finger navigation mode; processing, via the computing device, fingerprint image sensor data indicative of finger position and movement with respect to a fingerprint image sensor surface in a finger navigation mode to determine if the finger is in a second finger navigation mode; and transitioning, via the computing device, the fingerprint image sensor from a first power consumption mode to a second power consumption mode, based on detecting a transition from the first finger navigation mode to the second finger navigation mode.
    Type: Application
    Filed: September 26, 2013
    Publication date: April 3, 2014
    Applicant: Validity Sensors, Inc.
    Inventors: Erik Jonathon THOMPSON, Frank SCHWAB, Anthony P. RUSSO, Bjoren DAVIS, Charles BELLMAN, Gregory Lewis DEAN, Philip Yiu Kwong CHAN, Jaswinder JANDU
  • Publication number: 20130259330
    Abstract: A system and method is disclosed for comparing biometric image data to a stored enrollment template that may comprise collecting a set of biometric image data for a biometric object image from a biometric object imaging sensor; storing the biometric object image data in a memory as an enrollment template for further comparison to find a match with subsequently imaged biometric object image data; collecting a subsequent set of biometric image data for a biometric object image from the biometric object imaging sensor; updating the enrollment template; determining if a limited enrollment window remains open; and repeating the collecting of a subsequent set of biometric data step if the enrollment window remains open. Determining if the enrollment window remains open may be by determining the existence of one of a stability indicator and an instability indicator.
    Type: Application
    Filed: March 26, 2013
    Publication date: October 3, 2013
    Applicant: Validity Sensors, Inc.
    Inventors: Anthony P. RUSSO, Larry E. HATTERY, Rohini KRISHNAPURA, Philip Yiu Kwong CHAN
  • Patent number: 8204281
    Abstract: A method and device for removing common artifacts, such as stiction, from fingerprint scans created by partial fingerprint scanners. The partial fingerprint scanner data is assessed to determine if successive partial fingerprint images are overly similar to each other, which can occur during stiction. If this similarity exceeds a preset threshold, then at least some of the overly similar partial images will be removed (redacted) from the overall image dataset. The complete overall image is generated from the redacted data set. This method is particularly useful for creating “intelligent” low-cost, low power partial fingerprint scanners and scanner driver chips that can pre-process the partial fingerprint data that is generated during the course of a finger swipe, and remove stiction artifacts on a real-time or near-real time basis using relatively simple and low power on-chip processing circuits, and then send the corrected data to more sophisticated processors for subsequent fingerprint analysis.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: June 19, 2012
    Assignee: Validity Sensors, Inc.
    Inventors: Pallavi Satyan, Philip Yiu Kwong Chan
  • Publication number: 20110138450
    Abstract: A user transaction request is received at a client device. A web browser plug-in communicates the user transaction request to a server that determines whether the user transaction request is a secure transaction. Transaction data is received from the server via the web browser plug-in. If the received transaction data indicates a secure transaction, the user is prompted to provide biometric data from a user using a biometric device and related security protocols. The web browser plug-in then communicates a transaction confirmation to the server.
    Type: Application
    Filed: June 3, 2010
    Publication date: June 9, 2011
    Applicant: Validity Sensors, Inc.
    Inventors: Ramesh Kesanupalli, Davit Baghdasaryan, Frank Schwab, Philip Yiu Kwong Chan, Larry Hattery
  • Publication number: 20110082791
    Abstract: A request for a secure financial transaction is received from a user, who is authenticated with a biometric device. If the user is authenticated, an authentication token is received from the biometric device and sent to a remote device, which initiates the secure financial transaction. Upon initiation of the secure financial transaction, details related to the secure financial transaction are displayed to the user and the those details are monitored until the secure financial transaction is completed.
    Type: Application
    Filed: March 31, 2010
    Publication date: April 7, 2011
    Applicant: Validity Sensors, Inc.
    Inventors: Davit Baghdasaryan, Ramesh Kesanupalli, Frank Schwab, Philip Yiu Kwong Chan, Larry Hattery
  • Publication number: 20110083018
    Abstract: Biometric information is authenticated by a web-enabled application that identifies a biometric sensor installed in a client device. The authentication procedure reads biometric information associated with a user and compares the biometric information with a biometric template associated with that user. If the biometric information matches the biometric template, the authentication procedure retrieves credentials associated with the user and communicates those credentials to a requesting process.
    Type: Application
    Filed: March 24, 2010
    Publication date: April 7, 2011
    Applicant: Validity Sensors, Inc.
    Inventors: Ramesh Kesanupalli, Davit Baghdasaryan, Frank Schwab, Philip Yiu Kwong Chan, Larry Hattery
  • Publication number: 20110082800
    Abstract: A user request to implement a secure transaction is received and communicated to a web server. Transaction details signed with a secret key are received from the web server and displayed to the user. The user is requested to confirm the secure transaction by providing biometric data. If the user's biometric data is validated, an authentication token is received from a biometric device and the authentication token is communicated to the web server. The web server processes the secure transaction if the authentication token is confirmed as a valid authentication token.
    Type: Application
    Filed: March 31, 2010
    Publication date: April 7, 2011
    Applicant: Validity Sensors, Inc.
    Inventors: Davit Baghdasaryan, Ramesh Kesanupalli, Frank Schwab, Philip Yiu Kwong Chan, Larry Hattery
  • Publication number: 20110082801
    Abstract: A transaction request containing transaction details from a requesting device is generated by a web-enabled application executing on the requesting device. A secure signature associated with the transaction details is calculated using a secret key. The transaction details and the secure signature associated with the transaction details are communicated to the requesting device. Confirmation information is received from the requesting device and validated. If the confirmation information is valid, the requested transaction is implemented.
    Type: Application
    Filed: March 31, 2010
    Publication date: April 7, 2011
    Applicant: Validity Sensors, Inc.
    Inventors: Davit Baghdasaryan, Ramesh Kesanupalli, Frank Schwab, Philip Yiu Kwong Chan, Larry Hattery