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公开(公告)号：US11817037B1
公开(公告)日：2023-11-14
申请号：US17937301
申请日：2022-09-30
发明人： Gernot Unterweger , Adolfo De Cicco
CPC分类号： G09G3/2096 , G09G3/32 , H04N9/3179 , H04N9/3194 , G09G2320/0204 , G09G2320/0233 , G09G2320/0686 , G09G2340/0435 , G09G2340/0492 , G09G2380/10
摘要： A method of controlling a vehicle headlamp that includes a plurality of LEDs may comprise receiving video images at a first frame rate; storing the video images in a memory at the first frame rate; receiving offset data associated with the video images; defining sub-images based on the offset data and the video images; and driving the plurality of LEDs to present the sub-images at a second frame rate, wherein the second frame rate is faster than the first frame rate.
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2.发明申请公开(公告)号：US20200187323A1
公开(公告)日：2020-06-11
申请号：US16696356
申请日：2019-11-26
发明人： Marco Pamato , Damiano Sartori , Gernot Unterweger
摘要： A method and an electronic circuit are disclosed. The method includes detecting at least one operating parameter in an electronic circuit that includes a monitored LED string; adjusting a voltage threshold based on the at least one detected operating parameter; detecting a string voltage across the monitored LED string; comparing the string voltage with the voltage threshold; and detecting a defect in the LED string based on the comparing.
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公开(公告)号：US20200092962A1
公开(公告)日：2020-03-19
申请号：US16566768
申请日：2019-09-10
IPC分类号： H05B33/08
摘要： An electronic circuit and a method are disclosed. The electronic circuit includes an LED circuit, wherein the LED circuit (1) includes: an input (11, 12) configured to receive an input voltage (VIN); a drive circuit (2A) connected to the input (11, 12); and an LED module (3A) connected to the drive circuit (2A) and comprising an LED string (41) with at least one LED. The drive circuit (2A) is configured to monitor the LED module (3A) for the occurrence of an LED short in the LED string (41) and to change from a normal mode to a defect mode upon detection of the LED short, and the drive circuit (2A) is configured, in the defect mode, to operate the LED string (41) in at least one defect cycle that includes deactivating the LED string (41) for a deactivation period, activating the LED string for an activation period, and checking for the persistence of the LED short in the activation period.
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4.发明授权公开(公告)号：US11358518B2
公开(公告)日：2022-06-14
申请号：US17064526
申请日：2020-10-06
摘要： A vehicle headlamp control circuit may be configured to control a vehicle headlamp comprising a plurality of lighting elements. The vehicle headlamp control circuit may comprise a first communication interface configured to receive a first signal comprising a first set of values for driving the plurality of lighting elements, and a second communication interface configured to receive a second signal comprising an intensity threshold. The circuit may be configured to determine a composite intensity associated with the first set of values and drive the plurality of lighting elements using the first set of values if the composite intensity associated with the first set of values satisfies the intensity threshold.
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5.发明授权公开(公告)号：US11318878B2
公开(公告)日：2022-05-03
申请号：US16601230
申请日：2019-10-14
摘要： A circuit may be configured to control a vehicle headlamp comprising light emitting diodes (LEDs). The circuit may comprise an LED controller configured to receive video data from a video source via a first interface; an LED driver configured to drive the LEDs based at least in part on the video data; and a second interface between the LED controller and the LED driver, wherein the second interface is configured to communicate the video data from the LED controller to the LED driver and wherein the second interface communicates the video data at a slower data rate than the first interface.
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6.发明申请公开(公告)号：US20220105862A1
公开(公告)日：2022-04-07
申请号：US17064526
申请日：2020-10-06
摘要： A vehicle headlamp control circuit may be configured to control a vehicle headlamp comprising a plurality of lighting elements. The vehicle headlamp control circuit may comprise a first communication interface configured to receive a first signal comprising a first set of values for driving the plurality of lighting elements, and a second communication interface configured to receive a second signal comprising an intensity threshold. The circuit may be configured to determine a composite intensity associated with the first set of values and drive the plurality of lighting elements using the first set of values if the composite intensity associated with the first set of values satisfies the intensity threshold.
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7.发明授权公开(公告)号：US12120788B2
公开(公告)日：2024-10-15
申请号：US17228299
申请日：2021-04-12
IPC分类号： H05B45/30 , B60Q1/14 , B60Q3/80 , H05B47/125
CPC分类号： H05B45/30 , B60Q1/1415 , B60Q3/80 , H05B47/125 , B60Q2300/054
摘要： A control circuit may be configured to control light emitting diode (LED) driver circuits. The control circuit may be configured to generate a multicast of pixel intensity values based on data in memory or data received from a data source, and output the multicast on an interface, which may comprise a one-wire uni-directional interface. In some examples, a plurality of drivers may receive the multicast, and each of the plurality of drivers may drive different sets of LEDs based on the multicast.
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公开(公告)号：US11718220B2
公开(公告)日：2023-08-08
申请号：US17152519
申请日：2021-01-19
CPC分类号： B60Q1/1423 , B60Q1/08 , H05B45/12 , H05B45/44
摘要： A vehicle headlamp control circuit is configured to control a vehicle headlamp comprising a plurality of lighting elements. The vehicle headlamp control circuit may comprise a memory that stores information for controlling the plurality of lighting elements, and a driver circuit that drives the plurality of lighting elements based on the information, wherein the information compensates for one or more failed elements of the plurality of lighting elements.
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9.发明授权公开(公告)号：US11076473B2
公开(公告)日：2021-07-27
申请号：US16696356
申请日：2019-11-26
发明人： Marco Pamato , Damiano Sartori , Gernot Unterweger
摘要： A method and an electronic circuit are disclosed. The method includes detecting at least one operating parameter in an electronic circuit that includes a monitored LED string; adjusting a voltage threshold based on the at least one detected operating parameter; detecting a string voltage across the monitored LED string; comparing the string voltage with the voltage threshold; and detecting a defect in the LED string based on the comparing.
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10.发明申请公开(公告)号：US20210107397A1
公开(公告)日：2021-04-15
申请号：US16601230
申请日：2019-10-14
摘要： A circuit may be configured to control a vehicle headlamp comprising light emitting diodes (LEDs). The circuit may comprise an LED controller configured to receive video data from a video source via a first interface; an LED driver configured to drive the LEDs based at least in part on the video data; and a second interface between the LED controller and the LED driver, wherein the second interface is configured to communicate the video data from the LED controller to the LED driver and wherein the second interface communicates the video data at a slower data rate than the first interface.
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