Pi cell drive waveform
    21.
    发明授权

    公开(公告)号:US12099264B2

    公开(公告)日:2024-09-24

    申请号:US17888804

    申请日:2022-08-16

    申请人: zSpace, Inc.

    IPC分类号: G02B30/25 G02F1/01 H05B47/10

    摘要: Systems and methods for providing an electrical waveform to a pi-cell polarization switch. The electrical waveform may reduce/limit ion accumulation in and/or light leakage associated with the polarization switch. The electrical waveform may include multiple segments, e.g., a first segment may drive the polarization switch to a first polarization state and may be defined by a first portion having a first voltage level and a first polarity and a second portion having the first voltage level and a second polarity opposite the first polarity and a second segment, occurring after the first segment, that may drive the polarization switch to the second polarization state. The second segment may be defined by a second voltage level having the first polarity. An absolute value of the first voltage level may be greater than an absolute value of the second voltage level.

    Detection of downstream smart devices

    公开(公告)号:US12027854B2

    公开(公告)日:2024-07-02

    申请号:US17977924

    申请日:2022-10-31

    申请人: ROKU, INC.

    IPC分类号: H05B47/10 H01H9/54 H02J13/00

    摘要: Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for detecting downstream devices connected to an electrical load controlling device. An example embodiment operates by detecting an association signal from a downstream smart device responsive to a downstream smart device detection signal. The example embodiment further operates by determining whether the downstream smart device is coupled to an electrical terminal of an electrical switching device and configured to receive electricity in response to an actuation of the electrical switching device. If so, the example embodiment further operates by generating a control signal configured to instruct the electrical switching device to prevent a deactuation of the electrical switching device and transmitting the control signal to the electrical switching device.

    Control attachment for a power adapter and method of implementing a control attachment

    公开(公告)号:US11990712B1

    公开(公告)日:2024-05-21

    申请号:US16560822

    申请日:2019-09-04

    申请人: John Joseph King

    发明人: John Joseph King

    摘要: A control attachment adapted to control the application of power to a load is described. The control attachment may comprise a toggle element on the control attachment, wherein the toggle element is movable in response to a manual actuation associated with the control attachment; a first interface comprising an actuator element configured to make contact with a power adapter, wherein the actuator element is adapted to engage with a switch of the power adapter in response to the manual actuation; and an attachment element adapted to attach the control attachment to the power adapter; wherein a manual actuation of the toggle element enables controlling the power applied to the load by the power adapter. A method of implementing a control attachment is also described.

    SWITCH FOR A LIGHTING SYSTEM
    28.
    发明公开

    公开(公告)号:US20240136910A1

    公开(公告)日:2024-04-25

    申请号:US18398757

    申请日:2023-12-28

    摘要: A switch includes a first terminal, a second terminal, and a third terminal. The switch includes an output node coupled to the second terminal and the third terminal. The switch includes a contactor coupled to the first terminal and movable between at least a first position and a second position. The first terminal is coupled to the second terminal when the contactor is in the first position. The first terminal is coupled to the third terminal when the contactor is in the second position. When the contactor is in the first position, the switch is configured to provide direct current power at the output node. When the contactor is in the second position, the switch is configured to provide alternating current power at the output node.

    WIRELESS LIGHTING CONTROL SYSTEM
    29.
    发明公开

    公开(公告)号:US20240093840A1

    公开(公告)日:2024-03-21

    申请号:US18519867

    申请日:2023-11-27

    发明人: Ho Lim SONG

    摘要: A wireless lighting control system is provided to create a lighting pattern by remotely controlling a plurality of lighting devices according to groups, thereby improving a lighting effect. The wireless lighting control system includes a first lighting device electrically connected with a first smart device to act as a master, and a plurality of second lighting devices electrically connected with a plurality of second smart devices to act as slaves, respectively. If a group for lighting control and control pattern information according to groups are selected from the first smart device, the first lighting device transmits the control pattern information according to the groups to the second lighting devices through a wireless communication scheme. At least one of lighting units of the second lighting devices and display units of the second smart devices is controlled based on the control pattern information according to the groups.