Patents by Inventor Wayne Leung
Wayne Leung 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).
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Patent number: 11907789Abstract: A clasp device adapted for use with a wearable device including a main portion and at least one resiliently deformable arm extended from the main portion along a curvature and configured to be switchable between a normal state and a deformed state; wherein in the normal state a free end of the deformable arm is separated from an opposed end of the main portion a first distance and configured to form a first cavity or passage with the main portion for receiving or engaging with the wearable device; while in the deformed state the free end of the deformable arm is resiliently deformed to enable it to be separated from the opposed end of the main portion a second distance and configured to form a deformable second cavity or passage with the main portion for enabling insertion or removal of the wearable device into or from the clasp device.Type: GrantFiled: September 28, 2020Date of Patent: February 20, 2024Inventor: Ka Wai Wayne Leung
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Publication number: 20210256342Abstract: A clasp device adapted for use with a wearable device comprising a main portion and at least one resiliently deformable arm extended from the main portion along a curvature and configured to be switchable between a normal state and a deformed state; wherein in the normal state a free end of the deformable arm is separated from an opposed end of the main portion a first distance and configured to form a first cavity or passage with the main portion for receiving or engaging with the wearable device; while in the deformed state the free end of the deformable arm is resiliently deformed to enable it to be separated from the opposed end of the main portion a second distance and configured to form a deformable second cavity or passage with the main portion for enabling insertion or removal of the wearable device into or from the clasp device.Type: ApplicationFiled: September 28, 2020Publication date: August 19, 2021Inventor: Ka Wai Wayne Leung
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Patent number: 11017377Abstract: An apparatus and a method for wireless secure payment and data transaction with biometric enrollment and authentication including an active and passive hybrid device for secure wireless data transaction including a secure element adapted for storing at least one secure applet and at least one data segment for secure contactless data transaction and operatively connected with an active operation unit and a passive operation unit; and preferably the active operation unit is adapted to be connected removably with the secure element; and wherein the hybrid device is configured to be switchable between an active state in which the active operation unit is activated on demand to enable the hybrid device to function as an active device and adapted for provisioning various data to the secure element; and a passive state in which the active operation unit is deactivated and the passive operation unit is activated to enable the hybrid device to function as a passive device and adapted for conducting data verification aType: GrantFiled: January 14, 2019Date of Patent: May 25, 2021Inventor: Ka Wai Wayne Leung
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Publication number: 20210012319Abstract: A battery-less active and passive hybrid device for secure wireless payment comprising a secure element adapted for storing at least one secure payment applet and at least one token for secure contactless payment and operatively connected with an active operation unit and a passive operation unit; wherein the hybrid device is configured to be switchable between an active state in which the active operation unit is activated wirelessly on demand to enable the hybrid device to function as an active device and adapted for provisioning a personalization information of a payment card and/or a payment token of the device to the secure element; and a passive state in which the active operation unit is deactivated and the passive operation unit is activated to enable the hybrid device to function as a passive device and adapted for conducting payment token verification and/or contactless payment transaction operation via the secure elementType: ApplicationFiled: February 9, 2018Publication date: January 14, 2021Inventor: Ka Wai Wayne Leung
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Patent number: 10856140Abstract: A battery-less active and passive hybrid device for secure wireless payment comprising a secure element adapted for storing at least one secure applet and at least one data segment for secure contactless data transaction and operatively connected with an active operation unit and a passive operation unit; and preferably the active operation unit is adapted to be connected removably with the secure element; and wherein the hybrid device is configured to be switchable between an active state in which the active operation unit is activated on demand to enable the hybrid device to function as an active device and adapted for provisioning a personalization information and/or a token of the device to the secure element; and a passive state in which the active operation unit is deactivated and the passive operation unit is activated to enable the hybrid device to function as a passive device and adapted for conducting data verification and/or contactless data transaction operation via the secure element.Type: GrantFiled: May 1, 2018Date of Patent: December 1, 2020Inventor: Ka Wai Wayne Leung
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Publication number: 20190147452Abstract: A biometric enabled wireless secure payment and/or data transaction apparatus including an active and passive hybrid device for secure wireless data transaction including a secure element adapted for storing at least one secure applet and at least one data segment for secure contactless data transaction and operatively connected with an active operation unit and a passive operation unit; and preferably the active operation unit is adapted to be connected removably with the secure element; and wherein the hybrid device is configured to be switchable between an active state in which the active operation unit is activated on demand to enable the hybrid device to function as an active device and adapted for provisioning various data to the secure element; and a passive state in which the active operation unit is deactivated and the passive operation unit is activated to enable the hybrid device to function as a passive device and adapted for conducting data verification and/or contactless data transaction operatiType: ApplicationFiled: January 14, 2019Publication date: May 16, 2019Inventor: Ka Wai Wayne LEUNG
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Publication number: 20190147434Abstract: An apparatus and a method for wireless secure payment and data transaction with biometric enrollment and authentication including an active and passive hybrid device for secure wireless data transaction including a secure element adapted for storing at least one secure applet and at least one data segment for secure contactless data transaction and operatively connected with an active operation unit and a passive operation unit; and preferably the active operation unit is adapted to be connected removably with the secure element; and wherein the hybrid device is configured to be switchable between an active state in which the active operation unit is activated on demand to enable the hybrid device to function as an active device and adapted for provisioning various data to the secure element; and a passive state in which the active operation unit is deactivated and the passive operation unit is activated to enable the hybrid device to function as a passive device and adapted for conducting data verification aType: ApplicationFiled: January 14, 2019Publication date: May 16, 2019Inventor: Ka Wai Wayne LEUNG
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Publication number: 20190132730Abstract: A battery-less active and passive hybrid device for secure wireless payment comprising a secure element adapted for storing at least one secure applet and at least one data segment for secure contactless data transaction and operatively connected with an active operation unit and a passive operation unit; and preferably the active operation unit is adapted to be connected removably with the secure element; and wherein the hybrid device is configured to be switchable between an active state in which the active operation unit is activated on demand to enable the hybrid device to function as an active device and adapted for provisioning a personalization information and/or a token of the device to the secure element; and a passive state in which the active operation unit is deactivated and the passive operation unit is activated to enable the hybrid device to function as a passive device and adapted for conducting data verification and/or contactless data transaction operation via the secure element.Type: ApplicationFiled: May 1, 2018Publication date: May 2, 2019Inventor: Ka Wai Wayne LEUNG
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Patent number: 8036360Abstract: In one embodiment of the invention, a method produces a hook status notification. The method comprises detecting an off-hook state, allocating a half-dialog identification, generating an off-hook notification message, and associating the half-dialog identification with the off-hook notification message. In an alternative embodiment, a communication platform is adapted to comprise a processor component operable to receive an off-hook notification message comprising a half-dialog identification, and to store the half-dialog identification. The communication platform subsequently receives a signaling protocol message initiating a dialog, wherein the signaling protocol message is associated with the half-dialog identification. The communication platform then correlates the second signaling protocol message with the stored half-dialog identification.Type: GrantFiled: April 28, 2006Date of Patent: October 11, 2011Assignee: Cisco Technology, Inc.Inventors: Surya B. Gogineni, Daniel P. Linton, Umesh P. Katapadi, Wayne Leung
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Patent number: 6847501Abstract: A method and apparatus for providing matched differential MR biasing and pre-amplification. Tightly matched and well centered low-level MR bias voltage is provided directly to the sensing element for controlled input-impedance differential pre-amplification without common-mode voltage level control with loops.Type: GrantFiled: November 6, 2002Date of Patent: January 25, 2005Assignee: International Business Machines CorporationInventors: Wayne Leung Cheung, Stephen Alan Jove, Kevin Roy Vannorsdel
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Publication number: 20040085664Abstract: A method and apparatus for providing matched differential MR biasing and pre-amplification. Tightly matched and well centered low-level MR bias voltage is provided directly to the sensing element for controlled input-impedance differential pre-amplification without common-mode voltage level control with loops.Type: ApplicationFiled: November 6, 2002Publication date: May 6, 2004Applicant: International Business Machines CorporationInventors: Wayne Leung Cheung, Stephen Alan Jove, Kevin Roy Vannorsdel
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Patent number: 6456449Abstract: A magneto-resistive (M-R) head has a read element with a servo sensing width as wide as a data track width and a data sensing width of less than one data track width. The two read sensing widths are achieved by using a single read element having a center electrical contact from the M-R read element that effectively reduces the sensing width of the read element. In a first embodiment, the servo sensing width comprises a first portion of the read element and the data sensing width comprises a second, smaller portion of the read element. In a second embodiment, the servo sensing width comprises the entire read element width and the data sensing width comprises a portion thereof. In yet another embodiment, abutting read elements are constructed to enable separate optimization of each sensing width. The wide servo sensing width permits use of a wide servo pattern having servo bursts as wide as a data track width.Type: GrantFiled: August 7, 1997Date of Patent: September 24, 2002Assignee: International Business Machines CorporationInventors: Karl Arnold Belser, Wayne Leung Cheung, Dave Anthony Freitas, Ju-Hi John Hong, Mohamad Towfik Krounbi, Michael Paul Salo, Scott Arthur Thomas
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Patent number: 6393511Abstract: A multi-track density direct access storage device is disclosed. In accordance with a preferred embodiment of the present invention, a direct access storage device for data storage within a data processing system comprises a housing, a rotatable spindle, at least one disk, and several heads. The disk is fixedly mounted to the rotatable spindle, and the rotatable spindle is rotated by a motor within the housing. A first disk surface of the disk has a first track density and a second disk surface of the disk has a second track density; wherein the second track density is preferably greater than the first track density. Each of the several heads contains a transducer to read and write information from and to the disk during the disk rotation.Type: GrantFiled: February 9, 1999Date of Patent: May 21, 2002Assignee: International Business Machines CorporationInventors: David William Albrecht, Wayne Leung Cheung, Kok-Kia Chew, Ju-Hi Hong, John Jeffrey Stephenson
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Patent number: 6324030Abstract: A digital servo system for a disk drive provides servo information signal demodulation. The system includes a digital demodulator including a burst signal accumulator that accumulates terms according to respective burst timing intervals to produce a digital, quadrature position error signal (PES). The demodulator also can include a dibit burst filter with synchronous dibit sampling preferably implemented as a Hilbert Transform filter. Alternatively, the demodulator does not include a filter and a squarer and, instead, the squarer comprises a sum-and-squarer that sums the squares of odd and even digitized samples. In another embodiment, the system employs a digital demodulator having a digital squarer that removes any phase component of the digitized servo information signal and includes a burst signal accumulator that accumulates the squared terms according to respective burst timing intervals to produce the PES. The demodulator may include a filter comprising a harmonic notch filter.Type: GrantFiled: September 26, 1997Date of Patent: November 27, 2001Assignee: International Business Machines CorporationInventors: Wayne Leung Cheung, Thinh Huu Nguyen, Chorng-Kuang Wang
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Patent number: 5999351Abstract: A multi-track density direct access storage device is disclosed. In accordance with a preferred embodiment of the present invention, a direct access storage device for data storage within a data processing system comprises a housing, a rotatable spindle, at least one disk, and several heads. The disk is fixedly mounted to the rotatable spindle, and the rotatable spindle is rotated by a motor within the housing. A first disk surface of the disk has a first track density and a second disk surface of the disk has a second track density; wherein the second track density is preferably greater than the first track density. Each of the several heads contains a transducer to read and write information from and to the disk during the disk rotation.Type: GrantFiled: August 27, 1996Date of Patent: December 7, 1999Assignee: International Business Machines CorporationInventors: David William Albrecht, Wayne Leung Cheung, Kok-Kia Chew, Ju-Hi Hong, John Jeffrey Stephenson
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Patent number: 5966264Abstract: Servo pattern bursts are recorded with two frequencies that are detected using heterodyne detection with oscillators at the same frequency as the respective recorded frequencies. The two frequencies are selected to be orthogonal so the sensed servo pattern of one frequency is zero when detected with the detecting circuitry of the other frequency. The servo pattern bursts of the two frequencies are placed close together on the disk so they are sensed simultaneously so that, with orthogonality processing, a PES signal from a three phase pattern is sufficient to provide a robust linear signal, thereby eliminating one of the bursts from a quadrature pattern and reducing the disk surface area needed in each track for the servo pattern by 25% or more.Type: GrantFiled: August 7, 1997Date of Patent: October 12, 1999Assignee: International Business Machines CororationInventors: Karl Arnold Belser, Wayne Leung Cheung
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Patent number: 5825579Abstract: An apparatus, system and method are described for generating a continuous and linear position signal generated from stitched position error signal (PES) components, for use by a servo control system in positioning a transducer with respect to a storage surface. Continuity is achieved by providing a normalization stage in the servo control loop for correcting discontinuities at the stitch points with minimal impact to the PES zero-crossing points. According to a first preferred embodiment normalization is applied using an algorithm determined by the width of the read transducer. According to a second preferred embodiment, normalization is selectively applied near the stitch points of the PES components, but is not applied at their zero-crossing points. In another preferred embodiment, a first normalization algorithm is applied near the stitch points, and a second normalization algorithm is applied at the zero-crossing points.Type: GrantFiled: April 4, 1996Date of Patent: October 20, 1998Assignee: International Business Machines CorporationInventors: Wayne Leung Cheung, Donald L. Clare, Louis Joseph Serrano
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Patent number: 5818659Abstract: A digital servo control system for a disk drive provides asynchronous servo information signal demodulation. The system includes a digital demodulator having a digital squarer that removes any phase component of the digitized servo information signal and includes a burst signal accumulator that accumulates the squared terms according to respective burst timing intervals to produce a digital, quadrature position error signal (PES). The demodulator also can include a filter comprising a harmonic notch filter preferably implemented as a Hilbert Transform filter. Alternatively, the demodulator does not include a filter and squarer and, instead, the squarer comprises a sum-and-squarer that sums the squares of odd and even digitized samples. A split burst servo pattern for the servo control system is comprised of half-width transitions that can be written in a single pass of a recording head and therefore has no phase misalignment between adjacent flux patterns.Type: GrantFiled: August 26, 1997Date of Patent: October 6, 1998Assignee: International Business Machines CorporationInventors: Wayne Leung Cheung, Chung Chuan Liu, Francis Edward Mueller
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Patent number: 5774298Abstract: A digital servo control system for a disk drive provides asynchronous servo information signal demodulation. The system includes a digital demodulator having a digital squarer that removes any phase component of the digitized servo information signal and includes a burst signal accumulator that accumulates the squared terms according to respective burst timing intervals to produce a digital, quadrature position error signal (PES). The demodulator also can include a filter comprising a harmonic notch filter preferably implemented as a Hilbert Transform filter. Alternatively, the demodulator does not include a filter and squarer and, instead, the squarer comprises a sum-and-squarer that sums the squares of odd and even digitized samples. A split burst servo pattern for the servo control system is comprised of half-width transitions that can be written in a single pass of a recording head and therefore has no phase misalignment between adjacent flux patterns.Type: GrantFiled: February 6, 1996Date of Patent: June 30, 1998Assignee: International Business Machines CorporationInventors: Wayne Leung Cheung, Chung Chuan Liu, Francis Edward Mueller
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Patent number: 5717538Abstract: A servo system accurately detects and processes signals from servo patterns encoded on magnetic storage disks using weighted accumulation, for use in precisely positioning read/write heads with respect to tracks of data contained on the disks. After servo patterns are sensed by reading them from a disk, the resultant servo signals are processed by weighted accumulation circuitry to provide a position signal, which may be decoded to ascertain the positioning error of the read/write head and to apply any corrections that might be needed. In one embodiment, an amplitude position signal is generated by multiplying the servo signal by complementary quadrature weighting signals, then squaring each quadrature output signal, summing them, and taking the square root of the summed signal.Type: GrantFiled: January 20, 1995Date of Patent: February 10, 1998Assignee: International Business Machines CorporationInventors: Wayne Leung Cheung, Kok-Kia Chew, Ju-Hi John Hong