Patents by Inventor Kai Kei Poon
Kai Kei Poon 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: 11489523Abstract: A touch control human-machine interface for use in controlling operation of a machine, said interface including: an interface housing; a cover plate disposed on an outer-surface of the housing, said cover plate having a first electrically-conductive portion configured for touch interaction by a user's finger; a circuit assembly disposed within the housing, said circuit assembly including a circuit board having a second electrically-conductive portion and a light illumination module operably-connected thereto; a spacer element disposed between and separating the first conductive portion from the second conductive portion such that the first conductive portion, the second conductive portion and the spacer element are configured to form a capacitor device that is operably-connected with the circuit assembly; said first electrically-conductive portion being configured for deformation by the user's finger so as to cause a change in capacitance across the capacitor device, and whereby responsive to said change in cType: GrantFiled: November 13, 2019Date of Patent: November 1, 2022Assignees: DEFOND ELECTECH CO., LTD., DEFOND COMPONENTS LIMITEDInventors: Cheng Chen Nieh, Kai Kei Poon, Yiu Cho Yuen
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Patent number: 11431172Abstract: A control system for use in controlling operation of an electrical appliance, including: an electrical appliance housing having a control module; and a power source; a control knob including: an attachment element configured for releasably attaching the control knob to an outer surface of the housing; and an input/output module; a wireless power transfer system configured for wirelessly transferring power from the power source through the electrical appliance housing and to the input/output module for use in powering the input/output module; and a wireless control signaling module configured for wirelessly communicating a control signal from the control knob through the housing to the control module within the electrical appliance housing, said control signal received by the control module being indicative of an operational position/state of the control knob, and whereby said control module is configured for controlling operation of the electrical appliance by reference to the received wireless control signalType: GrantFiled: October 8, 2019Date of Patent: August 30, 2022Assignees: DEFOND ELECTECH CO., LTD, DEFOND COMPONENTS LIMITEDInventors: Cheng Chen Nieh, Kai Kei Poon, Kwok Hang Leung, Man Kit Mok, Ka Shing Anthony Yuen
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Patent number: 10852854Abstract: A control system for use in controlling operation of an electrical appliance, the system including: a processor module disposed inside of a housing of the electrical appliance, the processor module including at least one contactless-type sensor operably-connected with the processor module; an input control module including: an attachment element configured for releasably attaching the input control module to an outer surface of the housing; and at least one sensor-readable element configured for contactless-interaction with the contactless-type sensor.Type: GrantFiled: March 27, 2019Date of Patent: December 1, 2020Assignees: Defond Electech Co., Ltd, Defond Components LimitedInventors: Cheng Chen Nieh, Kai Kei Poon, Ka Leung Luk
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Publication number: 20200228118Abstract: A touch control human-machine interface for use in controlling operation of a machine, said interface including: an interface housing; a cover plate disposed on an outer-surface of the housing, said cover plate having a first electrically-conductive portion configured for touch interaction by a user's finger; a circuit assembly disposed within the housing, said circuit assembly including a circuit board having a second electrically-conductive portion and a light illumination module operably-connected thereto; a spacer element disposed between and separating the first conductive portion from the second conductive portion such that the first conductive portion, the second conductive portion and the spacer element are configured to form a capacitor device that is operably-connected with the circuit assembly; said first electrically-conductive portion being configured for deformation by the user's finger so as to cause a change in capacitance across the capacitor device, and whereby responsive to said change in cType: ApplicationFiled: November 13, 2019Publication date: July 16, 2020Inventors: CHENG CHEN NIEH, Kai Kei Poon, Yiu Cho Yuen
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Publication number: 20200119552Abstract: A control system for use in controlling operation of an electrical appliance, the control system including: an electrical appliance housing having disposed therein: a control module; and a power source; a control knob including: an attachment element configured for releasably attaching the control knob to an outer surface of the housing; and an input/output module; a wireless power transfer system configured for wirelessly transferring power from the power source through the electrical appliance housing and to the input/output module for use in powering the input/output module; and a wireless control signaling module configured for wirelessly communicating a control signal from the control knob through the housing to the control module within the electrical appliance housing, said control signal received by the control module being indicative of a an operational position or operational state of the control knob, and whereby said control module is configured for controlling operation of the electrical appliancType: ApplicationFiled: October 8, 2019Publication date: April 16, 2020Inventors: CHENG CHEN NIEH, Kai Kei POON, Kwok Hang LEUNG, Man Kit MOK, Ka Shing Anthony YUEN
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Publication number: 20190302904Abstract: A control system for use in controlling operation of an electrical appliance, the system including: a processor module disposed inside of a housing of the electrical appliance, said processor module including at least one contactless-type sensor operably-connected with the processor module; an input control module including: an attachment element configured for releasably attaching the input control module to an outer surface of the housing; and at least one sensor-readable element configured for contactless-interaction with the contactless-type sensor; wherein said at least one sensor-readable element of the input control module is configured for movement into a plurality of different positions relative to the at least one contactless-type sensor of the processor module disposed inside the housing, whereby responsive to said movement of the at least one sensor-readable element into the plurality of different positions relative to the at least one contactless-type sensor, the contactless-type sensor is configType: ApplicationFiled: March 27, 2019Publication date: October 3, 2019Inventors: Cheng Chen NIEH, Kai Kei POON, Ka Leung LUK
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Patent number: 10283291Abstract: Provided is a waterproof toggle switch, which includes a panel, a shift lever, a fixed contact and an elastic element. The panel is provided with an opening portion, with the opening portion running through the panel, between a front wall surface and a rear wall surface of the panel. The shift lever is rotatably held in the opening portion of the panel, and the shift lever includes a rotation center portion, a driving portion and an operation portion. A fit clearance between the rotation center portion and the opening portion ranges from 0.02 mm to 0.2 mm. By providing the panel with the opening portion and providing the shift lever with the rotation center portion, and by controlling the fit clearance between the opening portion and the rotation center portion, a waterproof toggle switch having superperformance and a low cost is provided.Type: GrantFiled: August 23, 2017Date of Patent: May 7, 2019Assignees: DEFOND ELECTECH CO., LTD, DEFOND COMPONENTS LIMITEDInventor: Kai Kei Poon
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Patent number: 10147567Abstract: A push-button switch capable of adjusting output power includes a housing. The housing includes a contact assembly and a power adjustment assembly therein. The contact assembly includes an upper terminal, a lower terminal and a connecting elastic plate below the upper terminal. A support seat is provided in the housing. An upper end of the support seat is provided with a first bracket. The first bracket is inserted through the connecting elastic plate. The first bracket is provided with a first slot. One end of the connecting elastic plate is fixedly connected to the upper terminal. Another end of the connecting elastic plate is engaged with the first slot. A drive mechanism is provided above the connecting elastic plate for driving the connecting elastic plate downward. The push-button switch has an ergonomic design.Type: GrantFiled: August 24, 2017Date of Patent: December 4, 2018Assignees: Defond Electech Co., Ltd., Defond Components LimitedInventor: Kai Kei Poon
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Publication number: 20180102227Abstract: Provided is a waterproof toggle switch, which includes a panel, a shift lever, a fixed contact and an elastic element. The panel is provided with an opening portion, with the opening portion running through the panel, between a front wall surface and a rear wall surface of the panel. The shift lever is rotatably held in the opening portion of the panel, and the shift lever includes a rotation center portion, a driving portion and an operation portion. A fit clearance between the rotation center portion and the opening portion ranges from 0.02 mm to 0.2 mm. By providing the panel with the opening portion and providing the shift lever with the rotation center portion, and by controlling the fit clearance between the opening portion and the rotation center portion, a waterproof toggle switch having superperformance and a low cost is provided.Type: ApplicationFiled: August 23, 2017Publication date: April 12, 2018Inventor: Kai Kei Poon
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Publication number: 20180061593Abstract: A push-button switch capable of adjusting output power includes a housing. The housing includes a contact assembly and a power adjustment assembly therein. The contact assembly includes an upper terminal, a lower terminal and a connecting elastic plate below the upper terminal. A support seat is provided in the housing. An upper end of the support seat is provided with a first bracket. The first bracket is inserted through the connecting elastic plate. The first bracket is provided with a first slot. One end of the connecting elastic plate is fixedly connected to the upper terminal. Another end of the connecting elastic plate is engaged with the first slot. A drive mechanism is provided above the connecting elastic plate for driving the connecting elastic plate downward. The push-button switch has an ergonomic design.Type: ApplicationFiled: August 24, 2017Publication date: March 1, 2018Inventor: Kai Kei Poon