Abstract: An optical fiber transmission device includes a substrate, a photonic integrated circuit, and an optical fiber assembly. The photonic integrated circuit is disposed on an area of the substrate. The substrate has a protruding structure at an interface with an edge of the photonic integrated circuit. The optical fiber assembly includes an optical fiber and a ferrule that sleeves the optical fiber. The protruding structure of the substrate is configured to abut against the ferrule to limit the position of the optical fiber assembly in a vertical direction of the substrate, such that the protruding structure is a stopper for the optical fiber assembly in the vertical direction.

Abstract: An optical fiber network device includes a fiber and a photonic integrated circuit. Fiber receives a first optical signal and transmits a second optical signal. A first wavelength of first optical signal is different from a second wavelength of second optical signal. Photonic integrated circuit includes a laser chip, a photodetector, a wavelength division multiplexing coupler, a first optical modulation element and a second optical modulation element. Laser chip is disposed on photonic integrated circuit, and is configured to generate first optical signal. Photodetector detects second optical signal. Wavelength division multiplexing coupler is configured to couple first optical signal to fiber, and receives second optical signal. First optical modulation element is coupled to wavelength division multiplexing coupler and laser chip, and is configured to modulate first optical signal.

Abstract: A wireless charging signal transmitting method includes continuously transmitting short beacons in a time cycle, each short beacon being used to detect a load change; and transmitting a long beacon only when the short beacons detect the load change to start detecting one or more connection broadcast signals. Moreover, a wireless power transmitting unit is also provided. Accordingly, the method and the device reduce the power consumption of a wireless charging system during the standby period.

Abstract: A cigar lighter having a wireless electricity receiving function includes a housing, a first electric-conductor, a second electric-conductor, a receive coil, a rectifier module, a voltage adjustment module, and an output end. The first electric-conductor and the second electric-conductor protrude from the housing to be in contact with a first electrode terminal and a second electrode terminal of a connector. The receive coil is located on the housing. The rectifier module is located in a chamber of the housing, and the rectifier module is electrically connected to the receive coil. The voltage adjustment module is located in the chamber and is electrically connected to the first electric-conductor, the second electric-conductor, and the rectifier module. The output end is located at one end of the housing and is electrically connected to the voltage adjustment module. In addition, a portable power supply device having a wireless electricity receiving function is also provided.

Abstract: A wireless charging converting apparatus includes a circuit board, a receive coil, a primary circuit, a transmit coil, a high-frequency magnetic isolation sheet, and a low-frequency magnetic isolation sheet. The receive coil is located on the circuit board to receive a high-frequency magnetic signal and convert the high-frequency magnetic signal into a first alternating-current signal. The primary circuit is located on the circuit board to receive the first alternating-current signal and convert the first alternating-current signal into a second alternating-current signal. The transmit coil is to convert the second alternating-current signal into a low-frequency magnetic signal. The low-frequency magnetic isolation sheet is located between the transmit coil and the circuit board. The high-frequency magnetic isolation sheet is located between the low-frequency magnetic isolation sheet and the receive coil. In addition, a protective shell having a wireless charging converting apparatus is also provided.

Abstract: One aspect of the disclosure provides an apparatus for wirelessly coupling with other devices including an antenna, wireless power circuitry configured to receive wireless power from the antenna at a first frequency, communication circuitry coupled to the antenna and configured to receive a signal from the antenna at a second frequency different from the first frequency, and a filter circuit coupled between the antenna and an input of the wireless power circuitry, the filter circuit configured to electrically connect the wireless power circuitry to the antenna at the first frequency and electrically isolate the wireless power circuitry from the communication circuitry at the second frequency.