摘要:
A method for recovering an OTUk frame includes: receiving an optical signal sent by using a method of multi-lane distribution from the OTUk frame to an interface of an optical module; converting the optical signal into an electrical signal, performing electrical equalization and demodulation on the electrical signal, and recovering multi-lane data from the demodulated signal; aligning and rearranging the data on each lane, according to a lane sequence identifier included in an overhead frame header of the data on each lane; and recovering the OTUk frame according to the aligned and rearranged data. According to the present invention, lane rearrangement is performed by detecting the lane sequence identifier, and the recovery of the OTUk frame is achieved. Therefore, a training sequence overhead does not need to be additionally introduced, and the influence on the system performance is avoided.
摘要:
A method for recovering an OTUk frame includes: receiving an optical signal sent by using a method of multi-lane distribution from the OTUk frame to an interface of an optical module; converting the optical signal into an electrical signal, performing electrical equalization and demodulation on the electrical signal, and recovering multi-lane data from the demodulated signal; aligning and rearranging the data on each lane, according to a lane sequence identifier included in an overhead frame header of the data on each lane; and recovering the OTUk frame according to the aligned and rearranged data. According to the present invention, lane rearrangement is performed by detecting the lane sequence identifier, and the recovery of the OTUk frame is achieved. Therefore, a training sequence overhead does not need to be additionally introduced, and the influence on the system performance is avoided.
摘要:
Use of low dose streptozocin in the preparation of an animal model for screening drugs for treatment of antoimmune type 1 diabetes is disclosed, in which streptozocin is administrated intravenously at a dose of 15-30 mg/kg per time for 5 days and administrated again on the 7th day and 14th day after last time of offering drug. A method for preparing rhesus monkey model of autoimmune type 1 diabetes and autoimmune type 1 diabetes animal model obtained are also disclosed.
摘要:
A method for implementing Polarization Division Multiplexing Binary Phase Shift Keying (PDM-BPSK) modulation and Quadrature Phase Shift Keying (QPSK) modulation in a compatible manner includes: dividing a direct current (DC) light into a first channel of light and a second channel of light with the same power; separately performing optoelectrical modulation on the first channel of light and the second channel of light and correspondingly outputting a first optical signal and a second optical signal in a Binary Phase Shift Keying (BPSK) format; performing polarization state control on the first optical signal; performing a phase shift on the first optical signal or the second optical signal; and performing optical signal combination with the polarization state preserved on the first optical signal and the second optical signal after the polarization state control and the phase shift, and outputting a PDM-BPSK modulation optical signal or a QPSK modulation optical signal.
摘要:
A method and device for protecting Ethernet Tree (E-Tree) services are disclosed. An ID is configured for each branch of the E-Tree. The method includes: determining a branch that needs to perform switching; notifying the ID of the branch that needs to perform switching to a work E-Tree through a root UNI of a protect E-Tree; and switching data over the branch that needs to perform switching from the work E-Tree to the protect E-Tree according to the ID of the branch that needs to perform switching. In the embodiments of the present invention, because an ID is configured for each branch of the E-Tree, the branch corresponding to the ID may be triggered to perform protection switching as required, thus implementing branch switching.
摘要:
The invention provides an apparatus for adjusting a working frequency of a VRD by detecting temperature. The apparatus includes a temperature control module, a load module and a controller. The temperature control module is used for detecting a temperature of a CPU, and judging an output load state of the VRD according to the detected temperature of the CPU, so as to output a control signal according the output load state. The load module is connected to the VRD, and is used for providing an external resistance to the VRD. The controller is respectively coupled to the load module and the temperature control module, and is used for receiving the control signal and adjusting a resistance of the load module according to the received control signal, so as to adjust a working frequency of the VRD. A power consumption of the VRD may be reduced based on the present invention.
摘要:
This invention discloses a ring network and a method for implementing the service thereof. The ring network includes multiple nodes in a same logic layer for accessing a service to the ring network or receiving a service from the ring network; two virtual channels of reverse directions, which connect the adjacent nodes and are utilized to bear and adapt service data; a physical link, which is utilized to bear the service data adapted to the virtual channel. The method includes the steps of configuring virtual channels at the nodes to form an eastward and westward bidirectional ring network; establishing service Label Switching Path schedules at the nodes; determining a service sink node according to the Label Switching Path schedule at a service source node; dispatching services up to the ring network according to a predetermined algorithm; multiplexing the services of different nodes in a same virtual channel for transmission in the way of Label Switching Path; dispatching the services down the ring network at the service sink node.
摘要:
Use of low dose streptozocin in the preparation of an animal model for screening drugs for treatment of antoimmune type 1 diabetes is disclosed, in which streptozocin is administrated intravenously at a dose of 15-30 mg/kg per time for 5 days and administrated again on the 7th day and 14th day after last time of offering drug. A method for preparing rhesus monkey model of autoimmune type 1 diabetes and autoimmune type 1 diabetes animal model obtained are also disclosed.
摘要:
A method, a device and a system for sending and receiving client signals are provided. The method for sending includes: distributing, in round-robin mode, OTU data frames into which client signals are encapsulated to VLs, in which the number of the VLs is a common multiple of the number of lanes of an OTN encapsulating module adaptation interface and the number of optical module adaptation lanes; inserting VL alignment identifiers that carry VL serial numbers and position information to the VLs, in which the VL alignment identifiers are adapted to compensate a transmission rate difference among the VLs; distributing, in bit-by-bit interleaving mode, the data on the VLs with the inserted VL alignment identifiers onto the OTN encapsulating module adaptation interface; converting data on the OTN encapsulating module adaptation interface by bit onto optical module adaptation lanes; modulating data on the optical module adaptation lanes and transmitting the modulated data onto an optical fiber for transmission, so as to compensate a transmission rate difference among different data lines caused by OTN long-distance transmission.
摘要:
A voltage regulating circuit including an error signal generator, a comparator, a switch unit, a low-pass filter and a modulating unit is provided. The error signal generator respectively receives a reference voltage signal and a feedback signal, and generates an error signal. The comparator respectively receives the error signal and a comparing signal, and generates a pulse width modulation signal. The switch unit regulates an input voltage signal to generate an output voltage signal according the pulse width modulation signal. The low-pass filter filters out the high frequency of the output signal and produces the feedback signal. The modulating unit is coupled to the low-pass filter and the error signal generator for regulating a transient voltage of the output voltage signal.