Abstract:
A framing method and apparatus in a passive optical network (PON) and a system, where the method includes generating a first transmission convergence (TC) frame and a second TC frame separately, wherein a sum of frame lengths of the first and the second TC frame is 125 microseconds (μs), performing bit mapping on the second TC frame to generate a third TC frame, where the bit mapping refers to identifying each bit of the second TC frame using N bits, and sending the first and the second TC frame to an optical network unit (ONU). A line rate corresponding to the second TC frame is lower than 2.488 giga bits per second (Gbps) such that a rate of a receiver on a receiving side is decreased and a bandwidth of the receiver is narrowed, thereby decreasing an optical link loss and increasing an optical power budget.
Abstract:
The present application provides a tunable optical filter, including: a substrate, a tunable filter unit, a temperature control unit, and an enclosure, where: the substrate, the tunable filter unit, and the temperature control unit are placed inside the enclosure, where the enclosure includes a light incidence window and a light emergence window; the substrate is disposed adjacent to the light incidence window or the light emergence window, and configured to support the tunable filter unit; the temperature control unit is disposed on a surface of the tunable filter unit, and configured to adjust a channel wavelength of the tunable filter unit by means of temperature control; and optical paths of the light incidence window, the tunable filter unit and the light emergence window are aligned. The present application further provides an optical receive component, an optical transceiver component, and a multi-wavelength passive optical network system.
Abstract:
The present application provides a tunable optical filter, including: a substrate, a tunable filter unit, a temperature control unit, and an enclosure, where: the substrate, the tunable filter unit, and the temperature control unit are placed inside the enclosure, where the enclosure includes a light incidence window and a light emergence window; the substrate is disposed adjacent to the light incidence window or the light emergence window, and configured to support the tunable filter unit; the temperature control unit is disposed on a surface of the tunable filter unit, and configured to adjust a channel wavelength of the tunable filter unit by means of temperature control; and optical paths of the light incidence window, the tunable filter unit and the light emergence window are aligned. The present application further provides an optical receive component, an optical transceiver component, and a multi-wavelength passive optical network system.
Abstract:
Embodiments of this application provide an image sharing method. The method includes: establishing, by a first electronic device, a Bluetooth link to a second electronic device; establishing, by the first electronic device, a Wi-Fi link to a Wi-Fi wireless access point, and establishing, by the second electronic device, a Wi-Fi link to the Wi-Fi wireless access point; obtaining, by the first electronic device, an image, and sending the image to the second electronic device over a Wi-Fi link; and after receiving the image, determining, by the second electronic device, whether a display screen of the second electronic device is on. The second electronic device displays the image on the display screen if determining that the display screen is on. According to the method in this application, transaction processing efficiency of an electronic device can be greatly increased.
Abstract:
This application provides a display control method, an electronic device, and a computer-readable storage medium. The method includes: displaying a multi-task interface if a first touch operation event entered by a user on a touchscreen of the electronic device is detected, where the first touch operation event is used to start the multi-task interface; and displaying a one-hand operation interface on the electronic device if a second touch operation event entered by the user on the touchscreen is detected in the multi-task interface.
Abstract:
Embodiments of this application provide an image sharing method. The method includes: establishing, by a first electronic device, a Bluetooth link to a second electronic device; establishing, by the first electronic device, a Wi-Fi link to a Wi-Fi wireless access point, and establishing, by the second electronic device, a Wi-Fi link to the Wi-Fi wireless access point; obtaining, by the first electronic device, an image, and sending the image to the second electronic device over a Wi-Fi link; and after receiving the image, determining, by the second electronic device, whether a display screen of the second electronic device is on. The second electronic device displays the image on the display screen if determining that the display screen is on. According to the method in this application, transaction processing efficiency of an electronic device can be greatly increased.
Abstract:
A framing method and apparatus in a passive optical network (PON) and a system, where the method includes generating a first transmission convergence (TC) frame and a second TC frame separately, wherein a sum of frame lengths of the first and the second TC frame is 125 microseconds (μs), performing bit mapping on the second TC frame to generate a third TC frame, where the bit mapping refers to identifying each bit of the second TC frame using N bits, and sending the first and the second TC frame to an optical network unit (ONU). A line rate corresponding to the second TC frame is lower than 2.488 giga bits per second (Gbps) such that a rate of a receiver on a receiving side is decreased and a bandwidth of the receiver is narrowed, thereby decreasing an optical link loss and increasing an optical power budget.
Abstract:
A circuit of a multi-level topology includes five terminals and six switching elements. A first end of a first switching element (Q1) is connected to a first terminal (A1), and a second end of the first switching element is connected to a fifth terminal (A5); a first end of the second switching element (Q2) is connected to a second terminal (A2), and a second end of a second switching element is connected to a first end of a first branch; a second end of a third switching element (Q3) is connected to a third terminal (A3), and a first end of a third switching element is connected to the first end of the first branch; a second end of a sixth switching element (Q6) is connected to a fourth terminal (A4).
Abstract:
The present application provides a wavelength configuration method for a multi-wavelength passive optical network, which includes: scanning, by an ONU, a downstream receiving wavelength, and receiving, downstream wavelength information of each downstream wavelength channel that is broadcast by an OLT separately through each downstream wavelength channel of a multi-wavelength PON system; establishing, by the ONU, a downstream receiving wavelength mapping table, where an entry of the downstream receiving wavelength mapping table includes downstream receiving wavelength information, drive current information of a downstream optical receiver and receiving optical physical parameter information of the ONU; selecting, by the ONU, one downstream wavelength from the downstream wavelength information broadcast by the OLT, and setting, according to the drive current information of the downstream optical receiver recorded in a related entry of the downstream receiving wavelength mapping table, an operating wavelength of the downstream optical receiver to the selected downstream wavelength.
Abstract:
A coupled inductor and a power converter includes at least two input ends, an output end, a common magnetic core, at least two first windings, and at least two second windings. The common magnetic core includes at least two magnetic cylinders, and the number of the at least two magnetic cylinders corresponds to the number of the at least two input ends; and one first winding and one second winding are twined in parallel on each cylinder among the at least two magnetic cylinders, and the first windings and the second windings on the at least two magnetic cylinders are mutually connected between the at least two input ends and the output end to form mutually coupled inductances and when currents that flow into the at least two input ends are equal, make the first winding and the second winding on each cylinder generate opposite magnetic potentials.