Abstract: A motorized window treatment has a headrail, a first operable rail and a second operable rail, a driving device, a distance detection circuit, a receiving circuit and a motor control circuit. The motor control circuit is coupled with the receiving circuit and the distance detection circuit for configuring the driving device to move the first operable rail and the second operable rail according to the signals received by the receiving circuit. When the receiving circuit receives a command signal to move the second operable rail towards a target position and the first operable rail locates between the second operable rail and the target position, the motor control circuit configures the driving device to move the second operable rail and the first operable rail collectively towards the target position.

Abstract: A window covering system and a calibration method therefor are provided for generating a safe distance between a middle rail and a lower rail according to status of a first lifting cord. The calibration method includes moving the middle and lower rails upwardly until reaching their initial positions, moving down the lower rail a predetermined distance and storing the detected position thereof as a first position, moving down the middle rail until a switch transmits a first signal as the first lifting cord running through the switch becomes loose, moving up the middle rail until the switch stops transmitting the first signal as the first lifting cord becomes tense, storing the detected position of the middle rail as a second position, and generating the safe distance according to the first and the second positions such that the middle rail is prevented from being pushed by the lower rail.

Abstract: A window covering includes a headrail, a covering material located below the headrail, a rotating member connected to the covering material and provided in the headrail, a motor provided in the headrail and coupled to the rotating member, and a control device provided in the headrail and electrically connected to the motor. The headrail has a longitudinal direction. The rotating member is adapted to drive the covering material to expand or collapse. The motor drives the rotating member to rotate. When a moving speed of a lower end of the covering material decreases and such a situation lasts for a predetermined time, the control device controls the motor to stop operating. Whereby, no matter whether the covering material is fully expanded, fully collapsed, or encounters resistance somewhere in between, the motor can be stopped.

Abstract: A size positioning device applied to a window covering cutting apparatus includes a manual operating member, a limit assembly and a position detecting device. The limit assembly can be driven by the manual operating member to move. The position detecting device can detect a position of the limit assembly and generate a position detecting value. According to the position detecting value, a signal processing circuit of the window covering cutting apparatus generates adjusted position information and target position information, and displays the adjusted position information on an output device. The manual operating member is adjusted according to the adjusted position information to move the limit assembly until the adjusted position information equals to the target position information, after which a cutting device cuts a first end of the window covering. Thereby, a risk of cutting the window covering to a wrong size due to miscalculation by users is reduced.

Abstract: A window covering cutting apparatus includes a supporting base, a mounting base, a cutting device, a size positioning device, an input device, an output device, a storage device and a signal processing circuit. The signal processing circuit calculates acquired information including product information, a mounting mode, cutting size information and a position detecting value to generate adjusted position information and target position information, and displays them on the output device. The size positioning device is adjusted until the adjusted position information equals to the target position information, after which the signal processing circuit sets the cutting device to cut the window covering to the required size. Since a correct cutting position of the window covering is obtained by the calculation of the signal processing circuit, a risk of cutting the window covering to a wrong size due to miscalculation by users is reduced.

Abstract: A motorized blind and a manual switching clutch structure thereof are disclosed. The motorized blind includes a blind assembly, a spring power module, an electric motor module and the manual switching clutch structure. The blind assembly includes a bottom rail which can be driven by the spring power module to move. The manual switching clutch structure is disposed between the spring power module and the electric motor module. By rotating a knob of the manual switching clutch structure, the motorized blind can be switched between a motor driving mode in which the electric motor module participates in the movement of the bottom rail by driving the spring power module, and a manual driving mode in which the spring power module individually participates in the movement of the bottom rail.

Abstract: A window covering includes a housing, a covering material, a spindle, and a driving device. The spindle and the driving device are provided at the housing. The driving device includes a motor having a shaft, and an epicyclic gearing decelerating device having an input end and an output end connected to the shaft and the spindle, respectively. Whereby, the spindle can drive the covering material to expand or to collapse. The epicyclic gearing decelerating device includes a ring portion and at least a planet gear assembly which is coupled between the input end and the output end. The planet gear assembly includes a plurality of planet gears having a Shore A durometer hardness of 45-90, which is rotatable along the fixedly provided ring portion. While being driven to move, a lower end of the covering material moves at a speed higher than 65 mm per second.

Abstract: A method of controlling multiple electric window coverings includes the following steps: A. receive a check command, which is created from an electronic device operated by the user; B. compare battery levels of batteries of the electric window coverings to at least one power threshold; C. control the electric window coverings based on a comparison result obtained in the previous step, wherein, when the battery level of the battery of any one of the electric window coverings is greater than the power threshold, said electric window covering makes a first response; when the battery level of the battery of any one of the electric window coverings is less than the power threshold, said electric window covering makes a second response. Whereby, the user could learn the battery level of the battery of each of the electric window coverings from the response it makes.

Abstract: An electric window covering has a covering material, a driving device, a microcontroller, a position detecting module and a trigger detecting module. The position detecting module detects a position of a lower end of the covering material to generate a position information. The microcontroller compares the position information with a reference position to generate a position relationship with respect to the reference position. The trigger detecting module detects whether the covering material is moved by an external force for generating a detecting result. When the microcontroller determines that a trigger event is received according to the detecting result, the microcontroller configures the driving device to move the covering material according to the position relationship and the trigger event.

Abstract: An electric window covering is disclosed, which has a motorized assembly for controlling a movement of a covering material, a rechargeable battery for providing electric power to the motorized assembly, an electric power input at an overhead frame coupled with the rechargeable battery, and a separable charging device. The separable charging device has an electrical connector, a conductor and an electric power output provided at an extension object for charging the rechargeable battery through the electric power input. The separable charging device further has a first fixing structure at the extension object adapted to engage with a second fixing structure at the overhead frame for charging the rechargeable battery. After the extension object and the overhead frame are disengaged, the rechargeable battery still provides electric power to the motorized assembly for controlling the movement of the covering material.

Abstract: A headrail, which is included in an opening covering for a building opening, includes a frame and a fixing member. The frame, by definition, has a longitudinal axis, and the frame forms a first sub-frame and a second sub-frame in a direction along the longitudinal axis. The fixing member is optionally provided at the frame. When the fixing member is provided at the frame and bridge the first sub-frame and the second sub-frame at the same time, the first sub-frame and the second sub-frame are fixedly connected to each other in an aligned manner.

Abstract: A charging system for an electric window covering, which includes a motorized assembly controlling the movement of the electric window covering, and a power supply device including a rechargeable power unit and a first remaining power detection circuit is disclosed. The charging system comprises a charging device which provides power to the power supply device, a comparison module, and a notification unit. The first remaining power detection circuit detects the potential magnitude of the power unit, and the detected value is transmitted to the comparison module to be compared. If the potential magnitude is less than a predetermined threshold, a warning is presented at a notification unit. By actively presenting the warning to the user when the power of the power unit is low, the power supply device and the charging system can achieve the objectives of providing an active notification and extending the run-time of the power unit.

Abstract: A motorized window treatment has a headrail, a first operable rail and a second operable rail, a driving device, a distance detection circuit, a receiving circuit and a motor control circuit. The motor control circuit is coupled with the receiving circuit and the distance detection circuit for configuring the driving device to move the first operable rail and the second operable rail according to the signals received by the receiving circuit. When the receiving circuit receives a command signal to move the second operable rail towards a target position and the first operable rail locates between the second operable rail and the target position, the motor control circuit configures the driving device to move the second operable rail and the first operable rail collectively towards the target position.

Abstract: A window covering includes a headrail, a covering material located below the headrail, a rotating member connected to the covering material and provided in the headrail, a motor provided in the headrail and coupled to the rotating member, and a control device provided in the headrail and electrically connected to the motor. The headrail has a longitudinal direction. The rotating member is adapted to drive the covering material to expand or collapse. The motor drives the rotating member to rotate. When a moving speed of a lower end of the covering material decreases and such situation lasts for a predetermined time, the control device controls the motor to stop operating. Whereby, no matter whether the covering material is fully expanded, fully collapsed, or encounters resistance somewhere in between, the motor could all be stopped.

Abstract: An electric roller shade includes a roller shade assembly, a mounting assembly, a blocking plate, and a charging assembly. The roller shade assembly includes a roller tube, a covering material connected to and wound around the roller tube, a motor, and a power supply device. The motor is adapted to be driven by the power supply device to rotate the roller tube, whereby to retract or release the covering material. The mounting assembly includes two support brackets, between which the roller tube is disposed. The blocking plate is fixedly connected to the mounting assembly. The charging assembly includes a charging connector, which is disposed on the blocking plate and electrically connected to the power supply device, and a charging unit, which is detachably and correspondingly connected to the charging connector. When connected, the charging connector transmits electric power from the charging unit to the power supply device.

Abstract: A window covering includes a housing, a covering material, a spindle, and a driving device. The spindle and the driving device are provided at the housing. The driving device includes a motor having a shaft, and an epicyclic gearing decelerating device having an input end and an output end connected to the shaft and the spindle, respectively. Whereby, the spindle can drive the covering material to expand or to collapse. The epicyclic gearing decelerating device includes a ring portion and at least a planet gear assembly which is coupled between the input end and the output end. The planet gear assembly includes a plurality of planet gears having a Shore A durometer hardness of 45-90, which is rotatable along the fixedly provided ring portion. While being driven to move, a lower end of the covering material moves at a speed higher than 65 mm per second.

Abstract: An electric window covering is disclosed, which has a motorized assembly for controlling a movement of a covering material, a rechargeable battery for providing electric power to the motorized assembly, an electric power input at an overhead frame coupled with the rechargeable battery, and a separable charging device. The separable charging device has an electrical connector, a conductor and an electric power output provided at an extension object for charging the rechargeable battery through the electric power input. The separable charging device further has a first fixing structure at the extension object adapted to engage with a second fixing structure at the overhead frame for charging the rechargeable battery. After the extension object and the overhead frame are disengaged, the rechargeable battery still provides electric power to the motorized assembly for controlling the movement of the covering material.

Abstract: A charging system and a method of charging an electric window covering are disclosed. The electric window covering includes a power supply device and an electric power input, which is provided in a frame and coupled to the power supply device. The charging system includes a charging device, which includes an extension object, an electric power output, and a power storage device which stores a power. The electric power output and the power storage device are respectively connected to the extension object, which is erectable in a longitudinal direction thereof. When the charging device is connected to the frame and suspended therefrom, the power of the power storage device is transmitted to the electric power output through the extension object, and then provided to the electric power input, whereby to charge the power supply device. Therefore, the method can be easily performed with said charging system.

Abstract: A light blocking system is disclosed, which is adapted to be used in a vertical blind which includes a headrail, a control mechanism provided in the headrail, and a covering assembly including a plurality of slats. Each of the slats is connected to the control mechanism with an end thereof, and therefore is hung below the headrail. A gap is left between the covering assembly and the headrail. The control mechanism is adapted to turn the slats in situ relative to the headrail, or to move the slats back and forth in a longitudinal direction of the headrail. The light blocking system includes a cover plate provided corresponding to the gap, wherein the cover plate covers the gap when the covering assembly is in a closed state.

Abstract: A charging system for an electric window covering, which includes a motorized assembly controlling the movement of the electric window covering, and a power supply device including a rechargeable power unit and a first remaining power detection circuit is disclosed. The charging system comprises a charging device which provides power to the power supply device, a comparison module, and a notification unit. The first remaining power detection circuit detects the potential magnitude of the power unit, and the detected value is transmitted to the comparison module to be compared. If the potential magnitude is less than a predetermined threshold, a warning is presented at a notification unit. By actively presenting the warning to the user when the power of the power unit is low, the power supply device and the charging system can achieve the objectives of providing an active notification and extending the run-time of the power unit.