Patents Examined by Raymond R Chai
  • Patent number: 11032886
    Abstract: The invention provides a light-emitting diode (LED) driver and a driving method thereof. The LED driver includes a brightness code calculation circuit, a driving current generation circuit and a control circuit. The brightness code calculation circuit is configured to to receive a pulse width modulation (PWM) signal and perform a calculation operation comprising calculating a duty cycle of the PWM signal with respect to a period of the PWM signal and generating a brightness code according to the duty cycle of the PWM signal. The driving current generation circuit is configured to generate a driving current according to the brightness code. The control circuit is configured to detect a plurality of brightness codes generated by the brightness code calculation circuit repeatedly performing the calculation operation and determine whether or not to adjust an execution frequency of the calculation operation of the brightness code calculation circuit according to the brightness codes.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: June 8, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Tuo-Kuang Chen, Hsiang-Yi Chiu, Chiun-He Lin, Yao-Cheng Lin
  • Patent number: 11026313
    Abstract: An illumination system includes a measurement stage, a light-providing part, a light-receiving part, and a processing part. The light-providing part includes light sources arranged in a dome shape, which irradiate incident lights to a measurement target on the measurement stage. The light-receiving part acquires reflection lights. The processing part controls the light sources to be turned on/off according to a dome-shaped sine wave pattern. The processing part controls the light sources to be sequentially turned on/off by shifting N times according to the dome-shaped sine wave pattern for a specific measurement position of the measurement target, and calculates a phase at the specific measurement position, an average of intensities of N reflection lights, and a visibility of N reflection lights, from intensities of N reflection lights. Thus, material of the measurement target may be easily determined.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: June 1, 2021
    Assignee: DEEDIIM SENSOR INC.
    Inventor: Jang-Il Ser
  • Patent number: 11019700
    Abstract: A light-emitting diode driving system including a load, a power supply circuit and a light-emitting diode driving device is provided. The load includes one or more light-emitting diode strings. The power supply circuit outputs an output voltage to drive the load according to a feedback signal. The light-emitting diode driving device includes at least one current source, at least one comparator and a control logic circuit. The current source outputs a current to drive the load. The comparator compares a first voltage from the current source to a reference voltage and outputs a second voltage according to a comparison result. The control logic circuit includes a control node. The control logic circuit receives the second voltage through the control node and converts the second voltage to a control signal to adjust a resistance value of a variable resistor circuit. A light-emitting diode driving device is also provided.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: May 25, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventor: Wei-Jen Lai
  • Patent number: 11019707
    Abstract: The application provides a smart lighting control device capable of reducing standby power consumption, wherein a control instruction is received by a control module, then an enable signal is sent by a standby processing module according to status of a flag bit signal of the control instruction to a data transmission module and a logic control module; and the data transmission module receives the control instruction according to the enable signal and transmits a sampled control instruction to the logic control module; and the logic control module controls a lamp according to the control instruction when a standby instruction bit is invalid, and sends a standby instruction to the standby processing module when the standby instruction bit is valid; and the standby processing module disable the data transmission module and the logic control module according to the standby instruction, thereby standby power consumption of the lamp is reduced.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: May 25, 2021
    Assignee: SHENZHEN SUNMOON MICROELECTRONICS CO., LTD.
    Inventor: Zhaohua Li
  • Patent number: 11006491
    Abstract: A light control device providing handsfree control of a lighting source using measures of the orientation of the lighting source is presented. The measurement of the orientation of the lighting source is monitored and while the orientation retains the light outputted by the lighting source within a designated area, the light output remains in an ON state. However, with the orientation of the lighting source indicates the light output may be outside the designated area, the light output is turned OFF. In addition, a method for calibrating the system to define the designated area is disclosed.
    Type: Grant
    Filed: March 28, 2020
    Date of Patent: May 11, 2021
    Assignee: Designs for Vision, Inc.
    Inventors: Richard E. Feinbloom, Michael D. Ross, Kenneth Koscheka, Bo Zhou, Kenneth N. Braganca
  • Patent number: 11005151
    Abstract: The radome for vehicles includes a frontal layer (1) and a rear layer (2), both made from thermoplastic material, and it also includes a heating element (3) placed on the frontal layer (1), on its face opposed to the rear layer (2). The method for manufacturing the radome includes forming the frontal layer (1) with the heating element (3) placed on a face of the frontal layer (1); placing the conductive element(s) (5) in the heating element (3) ; forming the rear layer (2); assembling the frontal and rear layers (1, 2), so that the heating element (3) is on the face of the frontal layer (1) opposite to the rear layer (2). Some embodiments provide a radome with a heating function and an outstanding appearance.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: May 11, 2021
    Assignee: Zanini Auto Grup, S.A.
    Inventors: Marçal Mascaró Hereza, Miquel Casanovas Cejuela, José Sanahuja Clot, Marc Bover Balderich, Augusto Mayer Pujadas
  • Patent number: 10998159
    Abstract: An ion generator includes a high-voltage transformer having a secondary side that is not grounded; a discharge wire-pattern; an induction wire-pattern; a discharge electrode connected to a first terminal via the discharge wire-pattern, the first terminal being disposed on the secondary side of the high-voltage transformer; and an induction electrode connected to a second terminal via the induction wire-pattern, the second terminal being disposed on the secondary side of the high-voltage transformer. The first terminal has a first width. The discharge wire-pattern includes a discharge wide region having a second width greater than the first width. The discharge wide region and the induction wire-pattern at least partly overlap each other in plan view.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: May 4, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Nobuyuki Ohe, Tetsuya Ezaki, Satoshi Okano
  • Patent number: 10986708
    Abstract: Aspects of the disclosure provide for a circuit including a binary-weighted DAC, a first transistor, a second transistor, a switch, a first current mirror, a second current mirror. The binary-weighted DAC is coupled between a first node and a second node and configured to receive a plurality of bits of a digital control signal. The first transistor has a source coupled to the first node, a drain coupled to a third node, and a gate coupled to a fourth node. The second transistor has a source coupled to the first node, a drain coupled to the third node, and a gate. The switch is coupled between the gate of the second transistor and the fourth node and configured to receive a partition control signal. The first current mirror is coupled to the third node and the second node. The second current mirror is coupled to the first current mirror.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: April 20, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Jiana Lou
  • Patent number: 10978798
    Abstract: A device includes an antenna array with at least four antennas, wherein each antenna has its own feeder line terminal, wherein the feeder line terminals of antennas arranged directly adjacent to one another are geometrically offset from one another by 90° in each case. The device further includes a control device configured to feed the individual antennas via their respective feeder line terminals such that the antenna array exhibits different radiation patterns at different points in time. A first radiation pattern shows a polarized field distribution. According to the invention, a second radiation pattern exhibits an unpolarized field distribution.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: April 13, 2021
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Peter Kuhn, Philip Schmidt, Frederic Meyer, Gerd Vom Boegel
  • Patent number: 10973108
    Abstract: A method for optimizing the area coverage of a wireless network may include a lamp to perform this method. The lamp may have an input for connecting a network, a power supply unit for supplying all components of the lamp with an electric power taken from the input, a control unit for controlling the components of the lamp, at least one light source from the power supply unit and controlled by the control unit, and a network access point for providing at least one wireless network. The lamp may include at least one antenna associated with the network access point. The light source and antenna may be arranged and designed such that the radiation characteristics of the light are congruent with the radiation characteristics of the antenna of the wireless network.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: April 6, 2021
    Assignee: Osram GmbH
    Inventors: Michael Eschey, Eberhard Hoefflin, Herbert Ernst, Holger Sacher, Bernhard Siessegger
  • Patent number: 10965213
    Abstract: A device includes a switch, a controller electrically coupled to the switch, an RC circuit, a diode and a zero current detection circuit. The controller is configured to provide a control signal to control the switch to charge and discharge an inductor between a zero current state and a peak current state to provide a light emitting diode (LED) drive current. The RC circuit includes at least a first resistive element, a second resistive element, and a capacitive element. The diode is electrically coupled in parallel with the RC circuit. The zero current detection circuit has a first input electrically coupled to the RC circuit, a second input electrically coupled to a threshold voltage, and an output electrically coupled to the controller.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: March 30, 2021
    Assignee: Lumileds LLC
    Inventor: Zhihua Song
  • Patent number: 10959300
    Abstract: A light fixture integrated disposed in an ambient environment can include at least one light source. The light fixture can also include a sensor module that measures a parameter, where the parameter is used to operate the at least one light source, where the sensor module is disposed on an exposed component, where the exposed component has a substantially unobstructed line of sight with the ambient environment, where the sensor module is used to measure the parameter in the ambient environment.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: March 23, 2021
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Matthew Alan Davis, Sridhar Reddy Nimma, John Trublowski
  • Patent number: 10959308
    Abstract: A parallel circuit for light-emitting diodes includes a first power wire, a second power wire, a first LED, a second LED, a switch, and a controller. The first LED has two ends respectively connected to the first power wire and the second power wire. The second LED and the switch are serially connected into a series circuit. One end of the series circuit is connected to the first power wire, and the other end of the series circuit is connected to the second power wire. The switch changes between a conductive state and a non-conductive state according to a switching frequency. The controller is electrically connected to the first power wire and the second power wire. The controller supplies electric power to the first power wire and the second power wire, to generate a voltage difference between the first power wire and the second power wire.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: March 23, 2021
    Assignee: Blooming International Limited
    Inventor: Shu-Fa Shao
  • Patent number: 10952293
    Abstract: The present disclosure provides a current adjustment circuit. The current adjustment circuit may include a dimming switch coupled to an inductor disposed in a lighting sub-circuit, a zero-crossing detector, and a time control sub-circuit. The dimming switch may be configured to control power supply states of the inductor. The zero-crossing detector may be configured to detect an ending time of a current of the inductor, and to generate a zero-crossing signal. The time control sub-circuit may include a first capacitor and a second capacitor and configured to receive the zero-crossing signal, and generate a control signal that is configured to control the dimming switch to initiate a switching cycle for the inductor. The switching cycle may start after a delay time and the delay time is controlled by a first charging time of the first capacitor and a second charging time of the second capacitor.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: March 16, 2021
    Assignee: MAXIC TECHNOLOGY CORPORATION
    Inventor: Zaixin Mu
  • Patent number: 10950930
    Abstract: An antenna device has a configuration in which a feeding point is located at a position that is distant from an outer periphery of a ground conductor plate to a center side and that would correspond to polarized waves parallel to the ground conductor plate. The antenna devices includes a ground conductor plate and an antenna element. The antenna element includes a first vertical portion and a second vertical portion which are erected substantially perpendicularly from the ground conductor plate and a first parallel portion, a second parallel portion, and a third parallel portion which extend substantially parallel to the ground conductor plate. An end portion, in the ?Z direction, of the first vertical portion serves as a feeding point and is located at a position that is distant from an outer periphery of the ground conductor plate to a center side.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: March 16, 2021
    Assignee: YOKOWO CO., LTD.
    Inventor: Takeshi Sampo
  • Patent number: 10945316
    Abstract: According to various embodiments, a control method may be provided. The control method may include: determining geometric information about respective geometries of respective housings of a plurality of light sources; determining a photographic representation of an environment in which the plurality of light sources are provided; determining spatial information about the plurality of light sources based on the geometric information and based on the photographic representation; determining control information for the plurality of light sources based on the spatial information; and controlling the plurality of light sources based on the control information.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: March 9, 2021
    Assignee: RAZER (ASIA-PACIFIC) PTE. LTD.
    Inventors: Michael Anthony Lee, Anthony P. Casano
  • Patent number: 10943767
    Abstract: A system for measuring and controlling the phase of an incoming analog waveform is disclosed. The system comprises an analog to digital converter to convert the incoming analog waveform to a digital representation. The system also includes a clock delay generator, which allows a programmable amount of delay to be introduced into the sample clock for the ADC. The system further comprises a controller to manipulate the delay used by the clock delay generator and store the outputs from the ADC. The controller can then use the digitized representation to determine the frequency of the incoming analog waveform, its phase drift and its phase relative to a master clock. The controller can then modify the output of a RF generator in response to these determinations.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: March 9, 2021
    Assignee: Applied Materials, Inc.
    Inventor: Keith E. Kowal
  • Patent number: 10938100
    Abstract: A dual-feed loop antenna structure adapted to be disposed on a substrate includes two loop antennas and two open-loop grounding radiators. Each of the loop antennas is used for resonating at a first frequency band and a second frequency band and includes a feed-in end and a ground segment. The two open-loop grounding radiators are located between the two loop antennas. Each of the open-loop grounding radiators extends from the ground segment of the corresponding loop antenna. A coupling gap is formed between the two open-loop grounding radiators. One of the loop antennas and the open-loop grounding radiator connected thereto completely overlap the other loop antenna and the other open-loop grounding radiator connected thereto after being mirrored and reversed. An electronic device is further provided.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: March 2, 2021
    Assignee: PEGATRON CORPORATION
    Inventors: Chien-Yi Wu, Chao-Hsu Wu, Shih-Keng Huang, Ching-Hsiang Ko, Sheng-Chin Hsu, Cheng-Hsiung Wu
  • Patent number: 10931032
    Abstract: An antenna system includes unit cells arranged as an array of unit cells, each unit cell including at least one dual-polarized antenna element for operation in a first radio frequency (RF) range, and least one configured as an expanded diamond antenna element with first and second pairs of co-polarized radiating elements, the first and second pairs of co-polarized radiating elements having orthogonal polarizations. The unit cell for the at least one expanded diamond antenna element may have rectangular bounds, where first and second radiating elements of the first pair of co-polarized radiating elements are disposed in first opposite corners across a first diagonal of the rectangular bounds and within the rectangular bounds, and where first and second radiating elements of the second pair of co-polarized radiating elements are disposed in second opposite corners of the four corners across a second diagonal of the rectangular bounds and within the rectangular bounds.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: February 23, 2021
    Assignee: Quintel Cayman Limited
    Inventors: Peter Chun Teck Song, David Edwin Barker, Karl Ni
  • Patent number: 10932340
    Abstract: A lighting assembly includes a lighting tower. The lighting tower includes a plurality of layers of lighting elements, where each layer of lighting elements is configured to provide a different angle of emitted light onto a parabolic reflector with respect to light emitted from another layer of lighting elements onto the parabolic reflector when activated.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: February 23, 2021
    Assignee: NBCUniversal Media, LLC
    Inventors: Charles Edwards, Richard Pierceall