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    • 5. 发明申请
    • Illuminating Device and Method for Driving Illuminating Device
    • US20220086981A1
    • 2022-03-17
    • US17395402
    • 2021-08-05
    • SAVANT TECHNOLOGIES LLC
    • Fanbin WangChengbin LiuWeihu ChenRuojian ZhuChunyu Guo
    • H05B45/305H05B45/34H05B45/40
    • The present application discloses an illuminating device and a method for driving the illuminating device. The illuminating device comprises: an LED illuminating module; a mains supply operation module, comprising an LED driving unit; and a ballast operation module, comprising a simulation filament unit, a first detection unit, a second detection unit, a switch unit, a first start unit and a second start unit; wherein when the illuminating device is in a mains supply operation mode, the LED driving unit is used for driving the LED illuminating module; when the illuminating device is in a magnetic ballast operation mode, the first detection unit detects a voltage signal or frequency signal of the simulation filament unit and outputs a first detection signal, and after receiving the first detection signal, the first start unit enables the switch unit to be in a conducting state and drives the LED illuminating module; and when the illuminating device is in an electronic ballast operation mode, the second detection unit detects a voltage signal or frequency signal across both ends of the illuminating device and outputs a second detection signal, and after receiving the second detection signal, the second start unit enables the switch unit to be in a conducting state and drives the LED illuminating module.
    • 8. 发明授权
    • Systems and methods for directional drilling
    • US10072461B1
    • 2018-09-11
    • US15645242
    • 2017-07-10
    • Savant Technologies, LLC
    • Thomas S. Hogan
    • E21B7/06
    • E21B7/06E21B7/04E21B17/003E21B47/09E21B47/12
    • An underground directional drilling system can comprise a plurality of elongated dual-shaft segments coupled together end-to-end and forming an inner shaft assembly independently rotatable relative to an annular outer shaft assembly. The dual-shaft drilling system can include a communication segment that comprises an outer shaft having first longitudinal portion, a second longitudinal, and a gap portion that provides electrical insulation therebetween. The communication segment can generate voltage differences between the longitudinal portions that cause electrical pulses to periodically transfer across the gap portion to wirelessly communicate drilling related data to the surface. An inner shaft of the communication segment can comprise electrical insulation to avoid creating an electrical short between the first and second longitudinal portions of the outer shaft. The inner shaft assembly can further comprise various sensors, electronics, and communication components, such as a magnetic sensor system that determines relative rotational orientations between the inner and outer shaft assemblies.
    • 10. 发明授权
    • CCT switchable illuminating device
    • US11405994B2
    • 2022-08-02
    • US17365562
    • 2021-07-01
    • SAVANT TECHNOLOGIES LLC
    • Jie GaoPan YaoZhe Wang
    • H05B45/10F21K9/23H05B45/20F21K9/232H05B45/46H05B45/345F21K9/238
    • Provided is a switchable Correlated Color Temperature (CCT) illuminating device. The device may include a CCT switching unit, forming electrical connection with a drive power source, and a bulb shell, at least one filament being arranged inside the bulb shell, the filament including a substrate, and a first light-emitting unit group and a second light-emitting unit group arranged on the substrate and forming electrical connection with the CCT switching unit. Each of the first light-emitting unit group and the second light-emitting unit group comprises one or more light-emitting unit, the first light-emitting unit group and the second light-emitting unit group are connected in parallel and conducting directions thereof are opposite, and when one of the first light-emitting unit group and the second light-emitting unit group is in a positive ON status, the other is in a negative OFF status. When the CCT switching unit is in a first operating mode, the first light-emitting unit group is in the positive ON status, and the CCT switchable illuminating device emits light with a first CCT. When the CCT switching unit is in a second operating mode, the second light-emitting unit group is in electrical conduction, and the CCT switchable illuminating device emits light with a second CCT. Therefore, the problem that the illuminating device in the prior art has a single CCT is solved.