Patents by Inventor Chee Khon Chong
Chee Khon 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).
-
Patent number: 10361586Abstract: A wireless power transfer device including a first power amplifier configured to generate a first drive signal, a second power amplifier configured to generate a second drive signal, a first transmitter coil configured to generate a first magnetic field having a first magnitude in response to receiving the first drive signal, and a second transmitter coil configured to generate a second magnetic field having a second magnitude in response to receiving the second drive signal. The wireless power transfer device also includes a repeater coil magnetically coupled to the first transmitter coil and the second transmitter coil, and configured to generate a third magnetic field having a third magnitude. The third magnitude is greater than the first magnitude and greater than the second magnitude. The repeater coil is configured to magnetically transfer power to an external device.Type: GrantFiled: December 29, 2015Date of Patent: July 23, 2019Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Chee Khon Chong, Sin Keng Lee, Teik Siew Tan
-
Patent number: 9837832Abstract: A wireless power transfer device including a first coil having a first portion, and configured to generate a magnetic field, and a second coil having a second portion. The second coil positioned with respect to the first coil such that the first portion of the first coil overlaps the second portion of the second coil in an overlap region. The wireless power transfer device also includes a power amplifier electrically coupled to one selected from a group consisting of the first coil and the second coil, and a flux concentrator aligned with the overlap region and configured to concentrate a magnetic flux of the magnetic field. The power amplifier configured to output a drive signal.Type: GrantFiled: December 29, 2015Date of Patent: December 5, 2017Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Teik Siew Tan, Chee Khon Chong, Sin Keng Lee
-
Publication number: 20170187197Abstract: A wireless power transfer device including a first coil having a first portion, and configured to generate a magnetic field, and a second coil having a second portion. The second coil positioned with respect to the first coil such that the first portion of the first coil overlaps the second portion of the second coil in an overlap region. The wireless power transfer device also includes a power amplifier electrically coupled to one selected from a group consisting of the first coil and the second coil, and a flux concentrator aligned with the overlap region and configured to concentrate a magnetic flux of the magnetic field. The power amplifier configured to output a drive signal.Type: ApplicationFiled: December 29, 2015Publication date: June 29, 2017Inventors: Teik Siew Tan, Chee Khon Chong, Sin Keng Lee
-
Publication number: 20170187238Abstract: A wireless power transfer device including a first power amplifier configured to generate a first drive signal, a second power amplifier configured to generate a second drive signal, a first transmitter coil configured to generate a first magnetic field having a first magnitude in response to receiving the first drive signal, and a second transmitter coil configured to generate a second magnetic field having a second magnitude in response to receiving the second drive signal. The wireless power transfer device also includes a repeater coil magnetically coupled to the first transmitter coil and the second transmitter coil, and configured to generate a third magnetic field having a third magnitude. The third magnitude is greater than the first magnitude and greater than the second magnitude. The repeater coil is configured to magnetically transfer power to an external device.Type: ApplicationFiled: December 29, 2015Publication date: June 29, 2017Inventors: Chee Khon Chong, Sin Keng Lee, Teik Siew Tan
-
Patent number: 9614385Abstract: An apparatus and method for full-orientation over-the-air charging includes a receiver coil associated with a portable electronic device for wireless charging; and a repeater coil associated with a device selectively configured to engage or support the portable electronic device for wireless charging, wherein the device is one of a cover, holster, or case for the portable electronic device; wherein, when the device is selectively engaged or supporting the portable electronic device, a portion of the repeater coil overlaps a portion of the receiver coil forming a magnetic coupling therebetween and supporting wireless charging of the portable electronic device in a plurality of orientations of the portable electronic device relative to a transmitter coil.Type: GrantFiled: November 14, 2014Date of Patent: April 4, 2017Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Wei Lun Oo, Chee Khon Chong, Sin Keng Lee
-
Patent number: 9537321Abstract: A power transfer interface (120) is formed of a primary repeater coil (104) and one or more secondary repeater coils (106) coupled via a wired interconnect (110), and integrated within a garment (114). The repeater coils operate as part of a wireless charging or powering system in which a transmit coil (102), located in a vehicle or a radio, is driven to magnetically couple a wireless radio frequency (RF) power signal to the primary repeater coil (104) which in turn transfers the RF power signal to the secondary repeater coil (106) via the wired interconnect (110). The system further comprises a portable electronic device (220) having a receive coil (108). The receive coil (108) wirelessly receives the RF power signal from the secondary repeater coil (106), which can in turn be used to power the portable device or charge a battery of the portable device.Type: GrantFiled: February 25, 2015Date of Patent: January 3, 2017Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Wei Lun Oo, Chee Khon Chong, Fook Teng Fam, Sin Keng Lee
-
Publication number: 20160248265Abstract: A power transfer interface (120) is formed of a primary repeater coil (104) and one or more secondary repeater coils (106) coupled via a wired interconnect (110), and integrated within a garment (114). The repeater coils operate as part of a wireless charging or powering system in which a transmit coil (102), located in a vehicle or a radio, is driven to magnetically couple a wireless radio frequency (RF) power signal to the primary repeater coil (104) which in turn transfers the RF power signal to the secondary repeater coil (106) via the wired interconnect (110). The system further comprises a portable electronic device (220) having a receive coil (108). The receive coil (108) wirelessly receives the RF power signal from the secondary repeater coil (106), which can in turn be used to power the portable device or charge a battery of the portable device.Type: ApplicationFiled: February 25, 2015Publication date: August 25, 2016Inventors: WEI LUN OO, CHEE KHON CHONG, FOOK TENG FAM, SIN KENG LEE
-
Publication number: 20160141097Abstract: A multi-plane receiving coil structure includes a receiving coil having at least a first planar section and a second planar section where the windings of the receiving coil each traverse both planar sections. The planar sections include at least two planar sections that are not parallel, and which can be “L,” “J,” or “U” shaped. The receiving coil structure is disposed in a device that includes, or is coupled to, a battery to be charged by receiving energy from a charging coil of a wireless charger via the receiving coil structure.Type: ApplicationFiled: November 14, 2014Publication date: May 19, 2016Inventors: WEI LUN OO, CHEE KHON CHONG, SIN KENG LEE
-
Publication number: 20160141899Abstract: An apparatus and method for full-orientation over-the-air charging includes a receiver coil associated with a portable electronic device for wireless charging; and a repeater coil associated with a device selectively configured to engage or support the portable electronic device for wireless charging, wherein the device is one of a cover, holster, or case for the portable electronic device; wherein, when the device is selectively engaged or supporting the portable electronic device, a portion of the repeater coil overlaps a portion of the receiver coil forming a magnetic coupling therebetween and supporting wireless charging of the portable electronic device in a plurality of orientations of the portable electronic device relative to a transmitter coil.Type: ApplicationFiled: November 14, 2014Publication date: May 19, 2016Inventors: Wei Lun OO, Chee Khon CHONG, Sin Keng LEE
-
Patent number: 6075421Abstract: A voltage controlled oscillator (1) comprising a voltage controllable variable resonant circuit (2) having a control input (Vctrl), a positive feedback input (6) and a controllable variable frequency output (7). The voltage controlled oscillator (1) also has an amplifier (3) having an amplifier input coupled to the controllable variable frequency output (7) and an oscillator output (Out). A positive feedback path (4) couples the amplifier (3) to the a positive feedback input (6) and a frequency dependent negative feedback path (5) provides increased negative feedback to the amplifier (3) as the Radio Frequency increases.Type: GrantFiled: January 30, 1998Date of Patent: June 13, 2000Assignee: Motorola, Inc.Inventor: Chee Khon Chong
-
Patent number: 5936480Abstract: A voltage controlled oscillator (1) comprising a voltage controllable variable resonant circuit (2) having a control input (Vctrl), a positive feedback input (6) and a controllable variable frequency output (7). There is an amplifier (3) having an amplifier input coupled to the controllable variable frequency output (7). A positive feedback path (4) couples the amplifier (3) to the positive feedback input (6) and there is selectable load (5) in parallel with the positive feedback path (4) for selectively reducing the SideBand Noise Ratio.Type: GrantFiled: January 30, 1998Date of Patent: August 10, 1999Assignee: Motorola, Inc.Inventor: Chee Khon Chong