Patents by Inventor Chee Chong

Chee Chong 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: 20200203965
    Abstract: A device, battery and system to reduce battery leakage is provided. The system includes a battery, a battery-powered device, and an interface therebetween comprising cell contacts and a data interface. The battery comprises: a cell; a low-power protection circuit; and a high-power protection circuit configured to receive an indication via the data interface that disables the high-power protection circuit, leaving the low-power protection circuit enabled. The battery-powered device comprises: a high-power subsystem used when the battery-powered device is in an operating state; a switch between the cell contacts and the high-power subsystem; and one or more sensing circuits configured to, in response to determining one or more of a power-off state and a low-battery state: open the switch to the high-power subsystem; and transmit, to the battery, via the data interface, the indication.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 25, 2020
    Inventors: Mohd Faisal ABDULLAH, Wai Mun LEE, Kow Chee CHONG, Macwien KRISHNAMURHTI
  • Patent number: 10623174
    Abstract: Electrical circuits and associated methods relate to performing a phase alignment by providing N copies of clock alignment circuits, enabling and selecting different clock alignment circuits to achieve an initial phase alignment. In an illustrative example, a phase alignment circuit may include a first clock alignment circuit configured to find a first phase alignment point and a second clock alignment circuit configured to find a second phase alignment point. A control circuit may be configured to select a primary clock alignment circuit from the first clock alignment circuit and the second clock alignment circuit and generate a digital command signal to control a phase interpolator. In various embodiments, by setting the control circuit, the same phase alignment circuit may be used to perform phase alignments between clock domains with different frequencies.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: April 14, 2020
    Assignee: XILINX, INC.
    Inventors: Riyas Noorudeen Remla, Warren E. Cory, Chee Chong Chan
  • Patent number: 10528513
    Abstract: An integrated circuit comprises programmable resources; a plurality of hard blocks; and a programmable connector coupled to the programmable resources, the plurality of hard blocks; wherein the programmable connector is configurable to route signals between a first hard block and a second hard block in a first mode of operation and to route signals between the first hard and the programmable resources in a second mode of operation.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: January 7, 2020
    Assignee: Xilinx, Inc.
    Inventors: Chee Chong Chan, Warren E. Cory, Jason R. Bergendahl
  • Patent number: 10498162
    Abstract: An apparatus, device, and charging system are provided. The apparatus comprises a primary stationary receive coil and a secondary rotatable receive coil, the primary stationary receive coil being electronically coupled to the secondary rotatable receive coil. The secondary rotatable receive coil provides a charge mode position when rotated in a same plane as the primary stationary receive coil. The secondary rotatable receive coil provides non-charge mode position when retracted back against the primary stationary receive coil. The coils may be coupled is series and or parallel configurations. The primary stationary receive coil may be integrated within or appended to a housing. The secondary rotatable receive coil may be integrated within or coupled to a rotatable clip coupled to the housing. Rotation of the clip extends a charging configuration with which to charge the primary stationary receive coil and the secondary rotatable receive coil.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: December 3, 2019
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Ya Yeing Lo, Kow Chee Chong, Macwien Krishnamurthi, Swee Hak Law, Sin Keng Lee, Sue Ling Tan
  • Publication number: 20190135127
    Abstract: A method for charging a battery includes detecting, with an electronic processor, a presence of the battery coupled to a charging interface. The method includes receiving, with the electronic processor, a command, the command including a charge mode. The method includes, in response to receiving the command, controlling a charging circuit coupled to the charging interface to charge the battery to a predetermined level based on the charge mode. The method includes, when the battery reaches the predetermined charge level, sending a battery control command, based on the charge mode, to control an active limiting circuit of the battery via a single wire data line coupled to the charging interface.
    Type: Application
    Filed: November 3, 2017
    Publication date: May 9, 2019
    Inventors: Thean Song Ooi, Amy T. Herrmann, Michael D. Geren, Kow Chee Chong, Roger L. Boyer, Muhamad Ridzuan Azizan, Scott J. Arendell, John E. Herrmann, Macwien Krishnamurthi, Roy L. Kerfoot, JR., William B. Kiger
  • Publication number: 20190036368
    Abstract: An apparatus, device, and charging system are provided. The apparatus comprises a primary stationary receive coil and a secondary rotatable receive coil, the primary stationary receive coil being electronically coupled to the secondary rotatable receive coil. The secondary rotatable receive coil provides a charge mode position when rotated in a same plane as the primary stationary receive coil. The secondary rotatable receive coil provides non-charge mode position when retracted back against the primary stationary receive coil. The coils may be coupled is series and or parallel configurations. The primary stationary receive coil may be integrated within or appended to a housing. The secondary rotatable receive coil may be integrated within or coupled to a rotatable clip coupled to the housing. Rotation of the clip extends a charging configuration with which to charge the primary stationary receive coil and the secondary rotatable receive coil.
    Type: Application
    Filed: July 27, 2017
    Publication date: January 31, 2019
    Inventors: YA YEING LO, KOW CHEE CHONG, MACWIEN KRISHNAMURTHI, SWEE HAK LAW, SIN KENG LEE, SUE LING TAN
  • Patent number: 9906066
    Abstract: A method and apparatus for wirelessly charging a chargeable device, such as a smart phone, digital music player, or navigation device, using a wireless charger. The wireless charger includes a connector, a retainer, and a wireless power transmitter. The connector is configured to secure the wireless charger to a visor in a passenger compartment of a vehicle. The retainer is configured to selectively retain a chargeable device having a recipient coil. The wireless power transmitter includes a charging coil configured to carry a fluctuating electric current that generates a changing magnetic field for receipt by a recipient coil of the chargeable device. The changing magnetic field induces a fluctuating electric current in the recipient coil, which is used to charge a battery pack of the chargeable device.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: February 27, 2018
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Macwien Krishnamurthi, Mohd Hisham Muddin Che At, Kow Chee Chong, William Kiger
  • Publication number: 20160360022
    Abstract: A battery module for a portable communication device having a controller. In one embodiment, the battery module includes a battery accessory interface having a positive terminal, an identifying terminal, and a negative terminal. A voltage regulator is connected to the positive terminal of the battery accessory interface and configured to output a voltage on the positive terminal in response to a control signal. An addressable switch is connected to the identifying terminal of the battery accessory interface. The addressable switch is configured to communicate with the controller and generate the control signal based on input from the controller and the identifying terminal.
    Type: Application
    Filed: June 2, 2015
    Publication date: December 8, 2016
    Inventors: Macwien Krishnamurthi, Kow Chee Chong, Cheah Chan Kee, Cheah Heng Tan, Yusasmadi Yusof
  • Patent number: 9503558
    Abstract: A battery module for a portable communication device having a controller. In one embodiment, the battery module includes a battery accessory interface having a positive terminal, an identifying terminal, and a negative terminal. A voltage regulator is connected to the positive terminal of the battery accessory interface and configured to output a voltage on the positive terminal in response to a control signal. An addressable switch is connected to the identifying terminal of the battery accessory interface. The addressable switch is configured to communicate with the controller and generate the control signal based on input from the controller and the identifying terminal.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: November 22, 2016
    Assignee: Motorola Solutions, Inc.
    Inventors: Macwien Krishnamurthi, Kow Chee Chong, Cheah Chan Kee, Cheah Heng Tan, Yusasmadi Yusof
  • Publication number: 20160301236
    Abstract: A method and apparatus for wirelessly charging a chargeable device, such as a smart phone, digital music player, or navigation device, using a wireless charger. The wireless charger includes a connector, a retainer, and a wireless power transmitter. The connector is configured to secure the wireless charger to a visor in a passenger compartment of a vehicle. The retainer is configured to selectively retain a chargeable device having a recipient coil. The wireless power transmitter includes a charging coil configured to carry a fluctuating electric current that generates a changing magnetic field for receipt by a recipient coil of the chargeable device. The changing magnetic field induces a fluctuating electric current in the recipient coil, which is used to charge a battery pack of the chargeable device.
    Type: Application
    Filed: April 13, 2015
    Publication date: October 13, 2016
    Inventors: Macwien Krishnamurthi, Mohd Hisham Muddin Che At, Kow Chee Chong, William Kiger
  • Patent number: 9413177
    Abstract: A battery pack selectively coupled to a portable electronic device and/or a recharging source, and configured to inhibit corrosion with discharge blocking features, the battery pack includes a positive terminal, a negative terminal, and a data terminal accessible from a housing of the battery pack, wherein each of the positive terminal, the negative terminal, and the data terminal are coupled to a battery in the battery pack; and a discharge blocking circuit configured to allow/block voltage across the positive terminal and the negative terminal based on a presence of a steady state pull up on the data terminal, wherein the steady state pull up is based on the battery pack being coupled to the recharging source, via the positive terminal, the negative terminal, and the data terminal.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: August 9, 2016
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Soon Heng Lim, Kow Chee Chong, Premchand K Surya Narayanan, Macwien Krishnamurthi, Zanariah Mat Nor
  • Publication number: 20160126764
    Abstract: A battery pack selectively coupled to a portable electronic device and/or a recharging source, and configured to inhibit corrosion with discharge blocking features, the battery pack includes a positive terminal, a negative terminal, and a data terminal accessible from a housing of the battery pack, wherein each of the positive terminal, the negative terminal, and the data terminal are coupled to a battery in the battery pack; and a discharge blocking circuit configured to allow/block voltage across the positive terminal and the negative terminal based on a presence of a steady state pull up on the data terminal, wherein the steady state pull up is based on the battery pack being coupled to the recharging source, via the positive terminal, the negative terminal, and the data terminal.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 5, 2016
    Inventors: SOON HENG LIM, KOW CHEE CHONG, PREMCHAND K SURYA NARAYANAN, MACWIEN KRISHNAMURTHI, ZANARIAH MAT NOR
  • Patent number: 9198278
    Abstract: A printed circuit board includes at least one plated-through hole via drilled into at least one of a first layer on a first side of the printed circuit board and a second layer on a second side of the printed circuit board. The printed circuit board also includes a core section laminated between the first layer and the second layer, wherein a length of the core section is shorter than a length of the first layer and a length of the second layer. The printed circuit board further includes an open slot configured to house a connection tab of an electronic product connected to the printed circuit board, wherein the open slot is formed adjacent to the core section and between sections of the first layer and the second layer that are longer than the core section.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: November 24, 2015
    Assignee: Motorola Solutions, Inc.
    Inventors: Khai Loke Lim, Kow Chee Chong, Macwien Krishnamurthi, Swee Theam Thor
  • Publication number: 20150245467
    Abstract: A printed circuit board includes at least one plated-through hole via drilled into at least one of a first layer on a first side of the printed circuit board and a second layer on a second side of the printed circuit board. The printed circuit board also includes a core section laminated between the first layer and the second layer, wherein a length of the core section is shorter than a length of the first layer and a length of the second layer. The printed circuit board further includes an open slot configured to house a connection tab of an electronic product connected to the printed circuit board, wherein the open slot is formed adjacent to the core section and between sections of the first layer and the second layer that are longer than the core section.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 27, 2015
    Applicant: MOTOROLA SOLUTIONS, INC
    Inventors: KHAI LOKE LIM, KOW CHEE CHONG, MACWIEN KRISHNAMURTHI, SWEE THEAM THOR
  • Patent number: 8974933
    Abstract: A dual-contact battery pack comprises a housing, a plurality of battery cells located within the housing, a first set of contacts and a second set of contacts coupled to the housing and to the plurality of battery cells. The dual-contact battery further comprises a first control circuit coupled between the plurality of battery cells and the first set of contacts and a second control circuit coupled between the plurality of battery cells and the second set of contacts. The first and second sets of contacts enable the dual-contact battery pack to selectively switch from a first state which prevents current from flowing from the plurality of battery cells to the respective first and second set of contacts to a second state in which current flows from the plurality of battery cells to the respective first and second set of contacts in response to the respective first and second control circuits.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: March 10, 2015
    Assignee: Motorola Solutions, Inc.
    Inventors: Macwien Krishnamurthi, Jauhari Abd Ghafar, Kow Chee Chong, John E. Herrmann, Michael T F Loh, Poh Huat Low, Mark J. Terranova
  • Publication number: 20150017643
    Abstract: The invention relates to the identification of genetic traits in an individual. More specifically, the invention relates to identifying human leukocyte antigen (HLA) alleles and haplotypes in a potential donor sample. The invention can be used for matching a donor with a recipient for transplantation, other medical needs and high-through put screening of samples.
    Type: Application
    Filed: February 28, 2013
    Publication date: January 15, 2015
    Inventors: Cristina Navarrete, Alina Lemnrau, Winnie Pui Chee Chong
  • Patent number: 8643461
    Abstract: A device having a substrate and a dielectric layer disposed over the substrate is disclosed. The device includes a transformer layout disposed in the dielectric layer. The transformer layout includes an integrated transformer having primary and secondary coil elements. The first and second coil elements are configured to result in noise-self cancellation effect.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: February 4, 2014
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Chee Chong Lim, Johnny Kok Wai Chew, Suh Fei Lim, Wei Gao
  • Patent number: 8305725
    Abstract: A battery pack (200) includes a power limiting apparatus (230) comprising a power limiting resistor (232) in series with an overcurrent protection device (234). A switch (236) under the control of a data line (202) is placed in parallel with the series coupled power limiting resistor (232) and overcurrent protection device (234). When the switch (236) is enabled via the data line (202), current limiting is provided via the switch and a fuse. When the switch (236) is disabled via the data line (202) current limiting is provided via the overcurrent protection device (234) which limits the maximum battery system current.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: November 6, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Thean Song Ooi, Macwien Krishnamurthi, Kow Chee Chong, Poh Haut Low
  • Publication number: 20120274434
    Abstract: A device having a substrate and a dielectric layer disposed over the substrate is disclosed. The device includes a transformer layout disposed in the dielectric layer. The transformer layout includes an integrated transformer having primary and secondary coil elements. The first and second coil elements are configured to result in noise-self cancellation effect.
    Type: Application
    Filed: April 28, 2011
    Publication date: November 1, 2012
    Applicant: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Chee Chong LIM, Johnny Kok Wai CHEW, Suh Fei LIM, Wei GAO
  • Patent number: 8268733
    Abstract: A method of forming a device is presented. The method includes providing a wafer having an active surface and dividing the wafer into a plurality of portions. The wafer is selectively processed by localized heating of a first of the plurality of portions. The wafer is then repeatedly selectively processed by localized heating of a next of the plurality of portions until all plurality of portions have been selectively processed.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: September 18, 2012
    Assignees: Nanyang Technological University, National University of Singapore, Globalfoundries Singapore Pte. Ltd.
    Inventors: Dexter Tan, Chee Chong Lim, Sai Hooi Yeong, Chee Mang Ng