Patents by Inventor Boon Kheng Lim

Boon Kheng Lim 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: 11949827
    Abstract: Various embodiments disclose a method for operating a printer apparatus that includes a print head. The method includes causing a media hub to retract a media in a retract direction along a media path. Further, the method includes causing a first media sensor to generate a first signal during retraction of the media. Furthermore, the method includes monitoring the first signal to detect at least one of a leading edge or a trailing edge of a label of the plurality of labels. Upon detecting the at least one of the leading edge or the trailing edge of the label, causing the media hub to retract the media by at least a predetermined distance, wherein the predetermined distance is a distance between the print head and the first media sensor.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: April 2, 2024
    Assignee: Hand Held Products, Inc.
    Inventors: Ramanathan Alaganchetty, Boon Kheng Lim, Rajan Narayanaswami, Qibao Yu, Jian Zeng, Hongqiang Liu, Quanjin Shi, Zhiyong Zhu, Yun Huang, Xiaoming Yuan
  • Publication number: 20230262181
    Abstract: Various embodiments disclose a method for operating a printer apparatus that includes a print head. The method includes causing a media hub to retract a media in a retract direction along a media path. Further, the method includes causing a first media sensor to generate a first signal during retraction of the media. Furthermore, the method includes monitoring the first signal to detect at least one of a leading edge or a trailing edge of a label of the plurality of labels. Upon detecting the at least one of the leading edge or the trailing edge of the label, causing the media hub to retract the media by at least a predetermined distance, wherein the predetermined distance is a distance between the print head and the first media sensor.
    Type: Application
    Filed: April 28, 2023
    Publication date: August 17, 2023
    Inventors: Ramanathan ALAGANCHETTY, Boon Kheng LIM, Rajan NARAYANASWAMI, Qibao YU, Jian ZENG, Hongqiang LIU, Quanjin SHI, Zhiyong ZHU, Yun HUANG, Xiaoming YUAN
  • Patent number: 11665295
    Abstract: Various embodiments disclose a method for operating a printer apparatus that includes a print head. The method includes causing a media hub to retract a media in a retract direction along a media path. Further, the method includes causing a first media sensor to generate a first signal during retraction of the media. Furthermore, the method includes monitoring the first signal to detect at least one of a leading edge or a trailing edge of a label of the plurality of labels. Upon detecting the at least one of the leading edge or the trailing edge of the label, causing the media hub to retract the media by at least a predetermined distance, wherein the predetermined distance is a distance between the print head and the first media sensor.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: May 30, 2023
    Assignee: Hand Held Products, Inc.
    Inventors: Ramanathan Alaganchetty, Boon Kheng Lim, Rajan Narayanaswami, Qibao Yu, Jian Zeng, Hongqiang Liu, Quanjin Shi, Zhiyong Zhu, Yun Huang, Xiaoming Yuan
  • Publication number: 20220201140
    Abstract: Various embodiments disclose a method for operating a printer apparatus that includes a print head. The method includes causing a media hub to retract a media in a retract direction along a media path. Further, the method includes causing a first media sensor to generate a first signal during retraction of the media. Furthermore, the method includes monitoring the first signal to detect at least one of a leading edge or a trailing edge of a label of the plurality of labels. Upon detecting the at least one of the leading edge or the trailing edge of the label, causing the media hub to retract the media by at least a predetermined distance, wherein the predetermined distance is a distance between the print head and the first media sensor.
    Type: Application
    Filed: March 8, 2022
    Publication date: June 23, 2022
    Inventors: Ramanathan ALAGANCHETTY, Boon Kheng LIM, Rajan NARAYANASWAMI, Qibao YU, Jian ZENG, Hongqiang LIU, Quanjin SHI, Zhiyong ZHU, Yun HUANG, Xiaoming YUAN
  • Patent number: 11303773
    Abstract: Various embodiments disclose a method for operating a printer apparatus that includes a print head. The method includes causing a media hub to retract a media in a retract direction along a media path. Further, the method includes causing a first media sensor to generate a first signal during retraction of the media. Furthermore, the method includes monitoring the first signal to detect at least one of a leading edge or a trailing edge of a label of the plurality of labels. Upon detecting the at least one of the leading edge or the trailing edge of the label, causing the media hub to retract the media by at least a predetermined distance, wherein the predetermined distance is a distance between the print head and the first media sensor.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: April 12, 2022
    Assignee: DATAMAX-O'NEIL CORPORATION
    Inventors: Ramanathan Alaganchetty, Boon Kheng Lim, Rajan Narayanaswami, Qibao Yu, Jian Zeng, Hongqiang Liu, Quanjin Shi, Zhiyong Zhu, Yun Huang, Xiaoming Yuan
  • Publication number: 20200145546
    Abstract: Various embodiments disclose a method for operating a printer apparatus that includes a print head. The method includes causing a media hub to retract a media in a retract direction along a media path. Further, the method includes causing a first media sensor to generate a first signal during retraction of the media. Furthermore, the method includes monitoring the first signal to detect at least one of a leading edge or a trailing edge of a label of the plurality of labels. Upon detecting the at least one of the leading edge or the trailing edge of the label, causing the media hub to retract the media by at least a predetermined distance, wherein the predetermined distance is a distance between the print head and the first media sensor.
    Type: Application
    Filed: November 4, 2019
    Publication date: May 7, 2020
    Inventors: Ramanathan ALAGANCHETTY, Boon Kheng LIM, Rajan NARAYANASWAMI, Qibao YU, Jian ZENG, Hongqiang LIU, Quanjin SHI, Zhiyong ZHU, Yun HUANG, Xiaoming YUAN
  • Patent number: 10399369
    Abstract: The present invention embraces a method and apparatus for providing feedback to a user on the status of media or ribbon of a printer. The feedback may be provided by incorporating a feedback mechanism in a hanger of a printer. The printer may be a thermal printer, but may be another type of printer. The feedback mechanism of the printer may be designed to work with one or more sensors to provide a feedback loop so that without an input from a user, the printer is able to detect the presence/absence of media or ribbon, as well as determine the width of the loaded media or ribbon. In another embodiment, the feedback mechanism is able to determine the weight of the roll of media or ribbon and hence determine the quantity of media or ribbon available on the hanger.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: September 3, 2019
    Assignee: Datamax-O'Neil Corporation
    Inventors: Chin Young Wong, Yaw Horng Yap, Sébastien Michel Marie Joseph d'Armancourt, Boon Kheng Lim
  • Patent number: 10293624
    Abstract: The present invention embraces a method and apparatus for providing feedback to a user on the status of media or ribbon of a printer. The feedback may be provided by incorporating a feedback mechanism in a hanger of a printer. The printer may be a thermal printer, but may be another type of printer. The feedback mechanism of the printer may be designed to work with one or more sensors to provide a feedback loop so that without an input from a user, the printer is able to detect the presence/absence of media or ribbon, as well as determine the width of the loaded media or ribbon. In another embodiment, the feedback mechanism is able to determine the weight of the roll of media or ribbon and hence determine the quantity of media or ribbon available on the hanger.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: May 21, 2019
    Assignee: DATAMAX-O'NEIL CORPORATION
    Inventors: Chin Young Wong, Boon Kheng Lim, Yaw Horng Yap, Sébastien Michel Marie Joseph d'Armancourt
  • Publication number: 20190118529
    Abstract: The present invention embraces a method and apparatus for providing feedback to a user on the status of media or ribbon of a printer. The feedback may be provided by incorporating a feedback mechanism in a hanger of a printer. The printer may be a thermal printer, but may be another type of printer. The feedback mechanism of the printer may be designed to work with one or more sensors to provide a feedback loop so that without an input from a user, the printer is able to detect the presence/absence of media or ribbon, as well as determine the width of the loaded media or ribbon. In another embodiment, the feedback mechanism is able to determine the weight of the roll of media or ribbon and hence determine the quantity of media or ribbon available on the hanger.
    Type: Application
    Filed: October 23, 2017
    Publication date: April 25, 2019
    Inventors: Chin Young Wong, Boon Kheng Lim, Yaw Horng Yap, Sébastien Michel Marie Joseph d'Armancourt
  • Publication number: 20190118528
    Abstract: The present invention embraces a method and apparatus for providing feedback to a user on the status of media or ribbon of a printer. The feedback may be provided by incorporating a feedback mechanism in a hanger of a printer. The printer may be a thermal printer, but may be another type of printer. The feedback mechanism of the printer may be designed to work with one or more sensors to provide a feedback loop so that without an input from a user, the printer is able to detect the presence/absence of media or ribbon, as well as determine the width of the loaded media or ribbon. In another embodiment, the feedback mechanism is able to determine the weight of the roll of media or ribbon and hence determine the quantity of media or ribbon available on the hanger.
    Type: Application
    Filed: October 23, 2017
    Publication date: April 25, 2019
    Inventors: Chin Young Wong, Yaw Horng Yap, Sébastien Michel Marie Joseph d'Armancourt, Boon Kheng Lim
  • Patent number: 10252874
    Abstract: A bidirectional media supporting system includes a first and second rollers configured to rotate to feed media in forward and reverse feed modes; a first clutch bearing set, and a second clutch bearing set configured to engage with the first clutch bearing set; and a gear transmission assembly configured to transfer a driving force from the first roller to the second roller. A method for reversing direction of printing media includes advancing media while maintaining a rotational speed of a platen roller assembly above that of a feeding roller assembly; receiving a signal to reverse the direction of advancing media; and adjusting operation by reversing a direction of rotation of a transmission gear coupled to the feeding and platen roller assemblies, and by rotating the roller assemblies in an opposite direction, while maintaining the rotational speed of the platen roller assembly below that of the feeding roller assembly.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: April 9, 2019
    Assignee: DATAMAX-O'NEIL CORPORATION
    Inventors: Boon Kheng Lim, Yaw Horng Yap, Chin Young Wong
  • Patent number: 10232628
    Abstract: A system for removably retaining a print head assembly includes a bracket holding a print head assembly and a shaft for receiving the bracket on the shaft. The shaft includes a retaining assembly, a first shaft section having a profile geometry to allow the bracket to be received onto the shaft, a second shaft section having a profile geometry preventing removal of the bracket from the shaft, and a positioning assembly configured to resiliently engage the bracket. When the bracket is received on the shaft at the first shaft section, the positioning assembly can engage and releasably reposition the bracket onto the second shaft section and against the retaining assembly.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: March 19, 2019
    Assignee: DATAMAX-O'NEIL CORPORATION
    Inventors: Yaw Horng Yap, Boon Kheng Lim, Florante Sumalinog Go
  • Patent number: 10071575
    Abstract: Printer is provided having support base on which print media travels. Printer includes thickness detection module and processor. Thickness detection module includes pinch arm assembly with pinch arm having first and second ends, encoder, and proximate dual channel encoder sensor. First end is biased toward support base. Encoder with number of circumferentially spaced line pairs is disposed at second end. Pinch arm and encoder configured to rotate in response to engagement of pinch arm with at least print media portion. Dual channel encoder sensor configured to detect rotation direction and encoder count and output signal representing encoder count. Encoder count is number of circumferentially spaced line pairs that pass by dual channel encoder sensor as pinch arm and encoder rotate. Processor is communicatively coupled to dual channel encoder sensor and configured to receive signal and calculate print media thickness of portion from encoder count using conversion factor.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: September 11, 2018
    Assignee: Datamax-O'Neil Corporation
    Inventors: Boon Kheng Lim, Aravindkumar Harinarayanan, Danny Lim
  • Publication number: 20180237243
    Abstract: A bidirectional media supporting system includes a first and second rollers configured to rotate to feed media in forward and reverse feed modes; a first clutch bearing set, and a second clutch bearing set configured to engage with the first clutch bearing set; and a gear transmission assembly configured to transfer a driving force from the first roller to the second roller. A method for reversing direction of printing media includes advancing media while maintaining a rotational speed of a platen roller assembly above that of a feeding roller assembly; receiving a signal to reverse the direction of advancing media; and adjusting operation by reversing a direction of rotation of a transmission gear coupled to the feeding and platen roller assemblies, and by rotating the roller assemblies in an opposite direction, while maintaining the rotational speed of the platen roller assembly below that of the feeding roller assembly.
    Type: Application
    Filed: February 20, 2017
    Publication date: August 23, 2018
    Inventors: Boon Kheng Lim, Yaw Horng Yap, Chin Young Wong
  • Publication number: 20180201035
    Abstract: Printer is provided having support base on which print media travels. Printer includes thickness detection module and processor. Thickness detection module includes pinch arm assembly with pinch arm having first and second ends, encoder, and proximate dual channel encoder sensor. First end is biased toward support base. Encoder with number of circumferentially spaced line pairs is disposed at second end. Pinch arm and encoder configured to rotate in response to engagement of pinch arm with at least print media portion. Dual channel encoder sensor configured to detect rotation direction and encoder count and output signal representing encoder count. Encoder count is number of circumferentially spaced line pairs that pass by dual channel encoder sensor as pinch arm and encoder rotate. Processor is communicatively coupled to dual channel encoder sensor and configured to receive signal and calculate print media thickness of portion from encoder count using conversion factor.
    Type: Application
    Filed: October 27, 2017
    Publication date: July 19, 2018
    Inventors: Boon Kheng Lim, Aravindkumar Harinarayanan, Danny Lim
  • Patent number: 9931867
    Abstract: A printer ribbon supply spindle assembly is provided. The ribbon spindle has multiple segments contiguous to each other. The spindle assembly includes a commutator disposed circumferentially on the first segment of the ribbon spindle and two carbon brushes connected to a voltage source and disposed generally in electrical contact with and on either side of the commutator. The voltage source, the carbon brushes, and the commutator complete an electrical circuit. C-shaped conductive springs are disposed over each of the multiple segments. The c-shaped conductive springs compress when covered by a printer ribbon and become in electrical contact with the commutator and adjacent compressed c-shaped springs, forming additional parallel circuits. An electronic element is disposed at the center of the c-shaped conductive springs. Measuring a change in the circuit due the additional parallel circuits with the electronic element indicates the printer ribbon width.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: April 3, 2018
    Assignee: Datamax-O'Neil Corporation
    Inventors: Yaw Horng Yap, Teck Siong Soh, Boon Kheng Lim, Aravindkumar Harinarayanan
  • Publication number: 20180086109
    Abstract: A printer ribbon supply spindle assembly is provided. The ribbon spindle has multiple segments contiguous to each other. The spindle assembly includes a commutator disposed circumferentially on the first segment of the ribbon spindle and two carbon brushes connected to a voltage source and disposed generally in electrical contact with and on either side of the commutator. The voltage source, the carbon brushes, and the commutator complete an electrical circuit. C-shaped conductive springs are disposed over each of the multiple segments. The c-shaped conductive springs compress when covered by a printer ribbon and become in electrical contact with the commutator and adjacent compressed c-shaped springs, forming additional parallel circuits. An electronic element is disposed at the center of the c-shaped conductive springs. Measuring a change in the circuit due the additional parallel circuits with the electronic element indicates the printer ribbon width.
    Type: Application
    Filed: September 23, 2016
    Publication date: March 29, 2018
    Inventors: Yaw Horng Yap, Teck Siong Soh, Boon Kheng Lim, Aravindkumar Harinarayanan
  • Patent number: 9802427
    Abstract: Printer is provided having support base on which print media travels. Printer includes thickness detection module and processor. Thickness detection module includes pinch arm assembly with pinch arm having first and second ends, encoder, and proximate dual channel encoder sensor. First end is biased toward support base. Encoder with number of circumferentially spaced line pairs is disposed at second end. Pinch arm and encoder configured to rotate in response to engagement of pinch arm with at least print media portion. Dual channel encoder sensor configured to detect rotation direction and encoder count and output signal representing encoder count. Encoder count is number of circumferentially spaced line pairs that pass by dual channel encoder sensor as pinch arm and encoder rotate. Processor is communicatively coupled to dual channel encoder sensor and configured to receive signal and calculate print media thickness of portion from encoder count using conversion factor.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: October 31, 2017
    Assignee: Datamax-O'Neil Corporation
    Inventors: Boon Kheng Lim, Aravindkumar Harinarayanan, Danny Lim