Abstract: A surge protection system includes a receptacle body, at least one power output jack, a power obtaining device, at least one surge protection module, a microcontroller unit, and a surge detection circuit. The at least one surge protection module includes a housing, a memory element, and a surge protection circuit that includes a surge absorption element and a thermal fuse connected in series and parallel. The surge absorption element absorbs a surge inputted from an external power supply, and the memory element records a number of surges carried by the surge absorption element. When the surge enters the surge protection system from the external power supply, the surge absorption element absorbs the surge, and the surge detection circuit outputs a signal to the microcontroller unit that writes the number of surges carried by the surge absorption element into the memory element.

Abstract: A surge protection system includes a receptacle body, at least one power output jack, a power obtaining device, at least one surge protection module, a microcontroller unit, and a surge detection circuit. The at least one surge protection module includes a housing, a memory element, and a surge protection circuit that includes a surge absorption element and a thermal fuse connected in series and parallel. The surge absorption element absorbs a surge inputted from an external power supply, and the memory element records a number of surges carried by the surge absorption element. When the surge enters the surge protection system from the external power supply, the surge absorption element absorbs the surge, and the surge detection circuit outputs a signal to the microcontroller unit that writes the number of surges carried by the surge absorption element into the memory element.

Abstract: According to one embodiment an apparatus of pulse width modulation with feedback control, adapted to drive an external load, the apparatus comprising a pulse width modulator, an adjustment encoder, a power driver, and a controller, wherein the pulse width modulator transfers a pulse code modulation code into a pulse width modulation code, the adjustment encoder transfers the pulse width modulation code into an upper-driven signal and a lower-driven signal, the power driver receives the upper-driven signal and the lower-driven signal to drive the external load, the controller measures the voltage of the external load to generate a control signal according to the upper-driven signal and the lower-driven signal, and transmits the control signal to the adjustment encoder to adjust the upper-driven signal and the lower-driven signal.

Abstract: According to one embodiment of a system for measuring a load impedance, comprising: a switch module, a first reference impedance, a second reference impedance, and a control module, wherein the switch module connects the first reference impedance, the second reference impedance, and the load impedance, respectively; the control module connects the switch module; the control module connects the first reference impedance via controlling the switch module to obtain a first voltage value; the control module connects the second reference impedance via controlling the switch module to obtain a second voltage value; the control module connects the load impedance via controlling the switch module to obtain a load voltage value; and the control module calculates the measured value of the load impedance according to the first voltage value, the second voltage value, and the load voltage value.

Abstract: A convertible rocking chair can be converted to use as a rocking-bed, a chair and a rocking-horse. The convertible rocking chair has an arched base rack and a seat frame. The arched base rack has a curved downside for rocking and rolling back and forth against ground. The seat frame includes a left-side rack and a right-side rack for stretching a fabric cover therebetween to form an accommodating space. The left-side rack and right-side rack can be locked in a first position when converted to the rocking-bed or chair, and rotatable to close together in a second position for engaging with a seat board so as to convert to the rocking-horse. The seat frame may pivot to the arched base rack and adjust inclination by a lifting rack when being converted to a chair.

Abstract: A chair with a backrest adjustment mechanism includes a chair, a back support board, and a driving mechanism. The chair has a back portion and a seat portion and formed a space for accommodating an occupant. The back support board is movably mounted in front of the back portion. The driving mechanism is operatively mounted between the back support board and the back portion, and capable of moving the back support board forward to reduce a seat depth of the chair for accommodating shorter occupant, and moving the back support board backward to enlarge the seat depth of the chair for accommodating taller occupant. By manipulating the driving mechanism of the present invention, both taller and shorter occupants should be able to find a seat depth to accommodate their upper leg length, so as to help occupants maintain proper back support, distributing their weight evenly across the seat portion.

Abstract: A high chair includes a foldable support frame, a chair, and a pair of positioning mechanism. The foldable support frame has a pair of rail struts and a pair of backup struts, the pair of backup struts being pivoted to the pair of rail struts and releasably locked in a use position by a spring-biased coupling sleeve. The chair has a pair of sliding sleeves being capable of sliding alone the pair of rail struts thereby hiding the chair under a dining table. The pair of positioning mechanism are mounted on the chair and associated with a pair of locking elements mounted in the sliding sleeves for releasably locking the sliding sleeves relative to the pair of rail struts, so as to adjust and fix the chair at a selected height.

Abstract: A high chair includes a foldable support frame, a chair, and a pair of positioning mechanism. The foldable support frame has a pair of rail struts and a pair of backup struts, the pair of backup struts being pivoted to the pair of rail struts and releasably locked in a use position by a spring-biased coupling sleeve. The chair has a pair of sliding sleeves being capable of sliding alone the pair of rail struts thereby hiding the chair under a dining table. The pair of positioning mechanism are mounted on the chair and associated with a pair of locking elements mounted in the sliding sleeves for releasably locking the sliding sleeves relative to the pair of rail struts, so as to adjust and fix the chair at a selected height.

Abstract: A convertible rocking chair can be converted to use as a rocking-bed, a chair and a rocking-horse. The convertible rocking chair has an arched base rack and a seat frame. The arched base rack has a curved downside for rocking and rolling back and forth against ground. The seat frame includes a left-side rack and a right-side rack for stretching a fabric cover therebetween to form an accommodating space. The left-side rack and right-side rack can be locked in a first position when converted to the rocking-bed or chair, and rotatable to close together in a second position for engaging with a seat board so as to convert to the rocking-horse. The seat frame may pivot to the arched base rack and adjust inclination by a lifting rack when being converted to a chair.

Abstract: A method for transmitting audio data of a plurality of audio sources through a single SPDIF link, includes: sequencing and multiplexing the audio data of the plurality of audio sources to pack the audio data of the plurality of audio sources into a plurality of frames of a block; performing bi-phase mark encoding on the audio data in the frames; appending preambles Z, X, and Y of the AES3/SPDIF stream format to the frames according to the number of audio sources in a first mode, or appending preambles Z, X, and Y of the AES3/SPDIF stream format and a specific preamble differing from preambles Z, X, and Y to the frames according to the number of audio sources in a second mode; and outputting the frames carrying the audio data into the SPDIF link with a frame rate greater than an audio sampling frequency of one of the audio sources.

Abstract: A method for transmitting audio data of a plurality of audio sources through a single SPDIF link, includes: sequencing and multiplexing the audio data of the plurality of audio sources to pack the audio data of the plurality of audio sources into a plurality of frames of a block; performing bi-phase mark encoding on the audio data in the frames; appending preambles Z, X, and Y of the AES3/SPDIF stream format to the frames according to the number of audio sources in a first mode, or appending preambles Z, X, and Y of the AES3/SPDIF stream format and a specific preamble differing from preambles Z, X, and Y to the frames according to the number of audio sources in a second mode; and outputting the frames carrying the audio data into the SPDIF link with a frame rate greater than an audio sampling frequency of one of the audio sources.