102 results about "Software switch" patented technology

Some embodiments provide a set of one or more network controllers that communicates with a wide range of devices, ranging from switches to appliances such as firewalls, load balancers, etc. The set of network controllers communicates with such devices to connect them to its managed virtual networks. The set of network controllers can define each virtual network through software switches and / or software appliances. To extend the control beyond software network elements, some embodiments implement a database server on each dedicated hardware. The set of network controllers accesses the database server to send management data. The hardware then translates the management data to connect to a managed virtual network.

Some embodiments provide a set of one or more network controllers that communicates with a wide range of devices, ranging from switches to appliances such as firewalls, load balancers, etc. The set of network controllers communicates with such devices to connect them to its managed virtual networks. The set of network controllers can define each virtual network through software switches and / or software appliances. To extend the control beyond software network elements, some embodiments implement a database server on each dedicated hardware. The set of network controllers accesses the database server to send management data. The hardware then translates the management data to connect to a managed virtual network.

For a host that executes one or more guest virtual machines (GVMs), some embodiments provide a novel virtualization architecture for utilizing a firewall service virtual machine (SVM) on the host to check the packets sent by and / or received for the GVMs. In some embodiments, the GVMs connect to a software forwarding element (e.g., a software switch) that executes on the host to connect to each other and to other devices operating outside of the host. Instead of connecting the firewall SVM to the host's software forwarding element that connects its GVMs, the virtualization architecture of some embodiments provides an SVM interface (SVMI) through which the firewall SVM can be accessed to check the packets sent by and / or received for the GVMs.

For a host that executes one or more guest virtual machines (GVMs), some embodiments provide a novel virtualization architecture for utilizing a firewall service virtual machine (SVM) on the host to check the packets sent by and / or received for the GVMs. In some embodiments, the GVMs connect to a software forwarding element (e.g., a software switch) that executes on the host to connect to each other and to other devices operating outside of the host. Instead of connecting the firewall SVM to the host's software forwarding element that connects its GVMs, the virtualization architecture of some embodiments provides an SVM interface (SVMI) through which the firewall SVM can be accessed to check the packets sent by and / or received for the GVMs.

A terminal is configured to switch from an unlocked mode in which a first set of user interactions can be made through a user interface to effect certain functions, to a partial lock mode in which a different set of user interactions are made available to the user in relation to the same, or substantially similar, displayed content. Switching does not cause the currently-displayed content to entirely disappear, as in a conventional transition to a lock mode, but rather the same or substantially the same content continues to be displayed. Switching between the modes can take place in response to manual selection, for example using a hardware or software switch, or can take place automatically in response to one or more sensors of the apparatus detecting a predetermined operating condition, e.g. the user being in motion.

Some embodiments provide a set of one or more network controllers that communicates with a wide range of devices, ranging from switches to appliances such as firewalls, load balancers, etc. The set of network controllers communicates with such devices to connect them to its managed virtual networks. The set of network controllers can define each virtual network through software switches and / or software appliances. To extend the control beyond software network elements, some embodiments implement a database server on each dedicated hardware. The set of network controllers accesses the database server to send management data. The hardware then translates the management data to connect to a managed virtual network.

The invention discloses a method and a system for audio frequency data stream input / output software switching without a break in operation system, wherein, the operation system consists of a local physical audio card, a short distance wireless communication module and an audio frequency switching module. When the short distance wireless communication module sets up wireless audio frequency transferring channel, the audio frequency switching module outputs the audio frequency data stream output by the audio frequency application routine to wireless audio frequency device via the wireless audio frequency transferring channel, and inputs the audio frequency data stream input by the wireless audio frequency device to the audio frequency application routine via the wireless audio frequency transferring channel, when the short distance wireless communication module cut the wireless audio frequency transferring channel, the audio frequency switching module automatically outputs the audio frequency data stream output by the audio frequency application routine to the wire audio frequency device via local physical audio card, and inputs the audio frequency data stream input by the wire audio frequency device to the audio frequency application routine via the local physical audio card.

A PBX system using an unmodified personal computer as the host server and using expansion slots to couple one or more switch cards to the system bus, and, optionally including a network interface card to couple the PBX system to other client computers running telephony enabled applications to control the PBX via a local area network. The switch card(s) are each coupled to a chain of one or more port expansion units that do not consume expansion slots. Each PEU contains a DSP and a microcontroller, an FPGA and port interface circuitry to interface to POTS CO lines, extension telephone lines, T1 lines or PRI lines. The personal computer is programmed with a PBX process that controls operations of the overall system and may also be programmed with conventional voice mail applications or integrated voice response and other applications to implement various telephony functions such as recording voice mail or prompt callers to input DTMF tones indicating what they want to do. Each chain of PEUs is coupled to the switch card and the PBX process by a TDMA bus and a packet switched bus. Distributed processing by the DSPs and microcontrollers in the PEUs to do tone generation, tone recognition, and a host of other functions offloads much of the work from the host. The packet switched bus enables easy handling of packetized data in IP packets or other packetized data.

For a host that executes one or more guest virtual machines (GVMs), some embodiments provide a novel virtualization architecture for utilizing a firewall service virtual machine (SVM) on the host to check the packets sent by and / or received for the GVMs. In some embodiments, the GVMs connect to a software forwarding element (e.g., a software switch) that executes on the host to connect to each other and to other devices operating outside of the host. Instead of connecting the firewall SVM to the host's software forwarding element that connects its GVMs, the virtualization architecture of some embodiments provides an SVM interface (SVMI) through which the firewall SVM can be accessed to check the packets sent by and / or received for the GVMs.

The invention discloses an over-current protection circuit, including a switch control module, high and low level states, and software and hardware switch protection modules. An input end and an output end of the switch control module are respectively connected with a high level and a load, the software and hardware switch protection modules are connected with a control end of the switch control module, and the software switch protection module includes a constant current source module. In the over-current protection circuit provided by the invention, output turning-off of the switch control module can be controlled automatically either by the software switch protection module according to the practical running need of a device or by hardware through automatically detecting electric current flowing through a power driving tube. The two protection methods are integrated together, and protection will take effect if either condition is met at any time. The constant current source module will keep an output turning-off state if the load is short-circuited for a long time, and can return back to its normal state once external abnormalities are excluded. Therefore the device can be free of maintenance and manual intervention in operation, which reduces labor cost and greatly improves labor productivity.

The invention discloses a laser transceiving device, a manufacturing method thereof and a method for improving temperature operation range thereof. A low-cost laser transmitter module TOSA (transmitter optical subassembly) is utilized to broaden the temperature operation range of laser transceiving integration modules of a small form-factor pluggable transceiver (SFP) or an SFP+ and the like, and a heater and a laser diode are packaged and integrated in the TOSA of a TO-CAN. Operation temperature of the SFP+ laser transceiving module is monitored by integrating a temperature sensor on a circuit board of the SFP+, or operation temperature of a TOSA laser is calculated by detecting bias current and output power of the laser, the heater in the TOSA positioned on the laser transceiving module is controlled through a heat control circuit and software, the software starts the control circuit and supplies power to the heater to heat the laser diode if the detected temperature is lower than a set threshold, and the software switches off the control circuit to stop heating the laser diode if the detected temperature is higher than the set threshold.

The invention relates to an intelligent dual-redundant gigabit Ethernet processing board which is intelligent, can fast switch, and can reduce the load of a system. The board realizes the design and the fast switching of a redundant network and simultaneously can greatly reduce the load of the host of the system so as to enhance the real time, reliability and availability of the entire network system through introducing an intelligent network processing chip and locating a switching process on the board to carry out. Meanwhile, eight network switch ports are expanded on the board, thus the functions of networking and data exchanging can be conveniently and quickly carried out. A VxWorks operating system is operated on the board provided by the invention, thus the fast switching for a dual-redundant gigabit network is realized through a software switching technology; and the reinforced PCI (Peripheral Command Indicator) bus technology is adopted, thus the intelligent dual-redundant gigabit Ethernet processing board can be widely applied to industrial network environments which have higher requirements on reliability and real time.

A terminal is configured to switch from an unlocked mode in which a first set of user interactions can be made through a user interface to effect certain functions, to a partial lock mode in which a different set of user interactions are made available to the user in relation to the same, or substantially similar, displayed content. Switching does not cause the currently-displayed content to entirely disappear, as in a conventional transition to a lock mode, but rather the same or substantially the same content continues to be displayed. Switching between the modes can take place in response to manual selection, for example using a hardware or software switch, or can take place automatically in response to one or more sensors of the apparatus detecting a predetermined operating condition, e.g. the user being in motion.

The disclosure is related to a method and a system for extracting flow data inside a tunnel over a virtual network. The method is achieved by modifying flow tables operated in a switch. The switch extracts data of the in-tunnel flow when the data is transmitted among computers that run software switches over the virtual network. The switch conducts monitoring, metering and management of the in-tunnel flows. A virtual machine running in a computer generates a packet that is encapsulated through a tunnel protocol at a logical port. The packet is then transmitted to the switch. The switch uses the flow tables to perform packet lookups for extracting the in-tunnel flow after the packet is de-capsulated. The packet is then re-encapsulated and forwarded to a logical port of the switch that connects to a destination computer. The destination computer can acquire the original packet after de-capsulating the packet.

The invention belongs to the field of security and environment protection, relating to a movable communication integrative device of an emergency rescue capsule for coal mine. The device comprises a control box, a liquid crystal display station, an internal transmission interface, an external transmission interface, a main electric power source, a stand-by power and an internal capsule monitoring apparatus. The control box is internally provided with a software switch and a hardware switch, a power-on self-test function, a screen-opening Chinese language display function, an environmental parameter intensively display function, an alarm sequencing function, a menu interface with strong operability and controllability, a self-clock function, a centralized RS485 communication function and a self-power saving mode function. The invention can monitor data such as gaseous environment, temperature and humidity environment, luminous environment, and the like, for human living in the rescue capsule in real time, and alarm, so that persons in the rescue capsule can find out the living condition in the rescue capsule and can adjust the operation by the integrative communication device in real time; and can realize the integrative transmission of the video communication and the voice communication for the living condition of the persons in the rescue capsule, so that rescue workers can communicate with the persons in the rescue capsule in real time to help miners in the rescue capsule to escape.

The invention provides a startup control method for software-operated startup and shutdown in multitask systems. The method is implemented by any one of three safeguard mechanisms. The first safeguard mechanism includes: a power management and monitoring service thread is established in a kernel of the multitask system, and shutdown is controlled through the power management and monitoring service thread which detects a long-press event of a power button. The second safeguard mechanism includes: a hardware timer interrupt service is established in the multitask system, and a hardware timer is started to regularly detect the long-press event of the power button so as to control shutdown. The third safeguard mechanism includes: a hardware watchdog timer is established in the multitask system, and the watchdog times out and restores so as to control shutdown. The design of three safeguard mechanisms allows a handheld terminal system to be able to shut down or reset and restart with no need for dismantling the system to remove a battery when the whole software-operated startup and shutdown mechanism collapses abnormally; accordingly, user experience is improved greatly, and products can be more competitive.

Anomaly-driven software for capturing and automating responses to computer anomalies is disclosed. Computer anomalies are processed by identifying the occurrence of an anomaly and correcting the computer anomaly by initiating a stored corrective action based on a user's input for resolving the anomaly.

In the invention, when terminal makes software switch, the terminal decides if the destination cell base station and the original cell base station use identical HARQ mode, and according to the physical circumstance of original cell base station and destination cell base station, uses different mode to realize the software switch process. The invention can be used in the both situations; one is the terminal can learn that the HARQ modes are different in the original cell base station and in the destination cell base station, and is capable of adjusting said HARQ modes to be consistent; another one is the terminal can't learn the HARQ modes of original cell base station and destination cell base station.

The invention discloses an unlocking method for a charging electronic lock, and belongs to the field of charge control technology of new energy automobiles. The unlocking method for the charging electronic lock comprises the following steps: in the normal charging process, receiving a vehicle door-opening signal by a battery management system; when a charging gun is drawn, performing a charging electrifying process when the electronic lock is judged to be not in a locking state, and performing the charging electrifying process and driving the electronic lock to be retracted when the electroniclock is judged to be in the locking state. According to the unlocking method, a hardware switch or a software switch does not need to be added, the using cost of a user is reduced, an unlocking intention of a car owner can be identified intelligently, and the unlocking method is safe, simple and convenient, and unlocking is effective.

The invention discloses a cold reclaimer spraying control method based on fuzzy PID (Proportional-Integral-Derivative) composite control and relates to the technical field of cold reclaimer spraying control. The method comprises the following steps: installing a fuzzy PID composite controller on a road cold reclaimer, wherein the fuzzy PID composite controller is composed of a switchover judging module, a fuzzy controller module and a PID controller module; controlling the spraying water flow of a road cold reclaimer spraying system through the composite control of the fuzzy controller and the PID controller; adopting the fuzzy control under a large deviation; adopting the PID control under a small deviation; and switching over the two controllers through a software switch so as to realize good control on the spraying control system. The method has the advantages that the spraying control system can be operated on a selected objective flow well; rapid precise control of the system on the sprayed water quantity is realized; and the quality and the efficiency in road cold reclaiming construction are improved greatly.

The invention relates to a data packet forwarding method based on software table look-up. The method is based on Intel DPDK, and adopts hardware to extract a data packet header, rapid data transmission software to transmit data in batch efficiently, and software to look up table flexibly so as to realize a data packet forwarding function of a switch. A table look-up algorithm realizes the effects of storing enough items and improving table look-up speed by combining a cuckoo hash table and an open addressing method. Network equipment is allowed to have the following characteristics of multiport wire-speed forwarding, flexible high-capacity table look-up and low cost. The method combines the high-speed packet forming capability of the hardware, the mass data packet processing and forwarding capability of the rapid data transmission software and the high-speed flexible look-up capability of the software; compared with the conventional hardware switch, the method has better extendibility and programmability; and compared with a conventional software switch, the method can provide larger throughput rate and smaller time delay.

A network function virtualization (NFV) apparatus according to the present disclosure may include: a virtual machine which is configured to perform a first network function, generate a flow rule according to network configuration information received from a user or a result of performing the first network function, and transmit the flow rule to a software switch; and the software switch which is configured to perform a second network function, and process a packet according to the flow rule. According to the present disclosure, separate a virtual network function may be separated into a data (packet) processing function and a control function, whereby a fast processing speed provided by a software switch and virtual machine's processing capability with high complexity may be maximally utilized.

This invention provides a method and a system for realizing clicking call service, in which, the method includes: utilizing the request signaling in the SIP protocol to carry calling and called information and transmitting said request to the service server by a software exchange device and triggering the service server to set up connection between the calling and called terminals to realize triggered call service. This invention also provides a system for realizing click call service including a control terminal, a calling terminal, a called terminal, a software switch device, a service server and a media resource server, a click call request device, a click call identifying device, a call number analyzing device, a call set-up device and a call ending device. This invention applies a standard SIP protocol, which is convenient for telecommunication business runners to distribute and popularize click dialing service.

The call establishing method comprises: SIP entity sends at least a part of called number to the software switch by using INVITE message in order to send it to the called network; when confirming the called number is not a full number according to the INVITE message, the software switch sends the call progress answering for indicating the establishment of initial session to the SIP entity; according to the call progress answering, the SIP entity sends the received next called number to the called software by using INFO message, and then sends to the called network.

The embodiment of the invention discloses a data communication method and a data communication device. When the data communication method is applied to a first software switch connected to a data transmitting terminal in a data communication system, the method comprises the steps of receiving a data packet sent by a first virtual machine, acquiring a first flow table which is sent by an OpenFlow controller and matched with the data packet, processing the data packet based on processing actions included in the first flow table, forwarding the processed data packet to a second software switch so as to enable the second software switch to process the data packet based on a second flow table which is sent by the OpenFlow controller and matched with the data packet, and forwarding the processed data packet to a second virtual machine. The data communication method solves a problem that the communication resource consumption is great when virtual machines in the same segment inside tenants carry out cross-server communication in an SDN (Software Defined Network), and communication resources can be saved compared with an existing scheme.

The invention discloses a software protecting method for start short circuit of an off-line inverter. When the inverter is started, a PMW (Pulse-Width Modulation) duty ratio is set to be zero, PWM output is enabled, a PWM counting value is set to be zero, and a given sine wave amplitude value is set to be zero by software in an open-loop control way; in a start process, the change of the given sine wave amplitude value is controlled by the software to gradually increase the given sine wave amplitude value; the software judges whether the start process is in the last period of open-loop adjustment control or not according to the PWM counting value, when the open-loop adjustment control is at a zero-over point of the last period, the software switches the inversion output from the open-loop control way to a close-loop control way, and voltage is quickly adjusted to be stable at a rated value. By the software protecting method for start short circuit of the off-line inverter, at the start or in the start process, current can be prevented from being increased suddenly in case of short circuit, so that a power pipe is prevented from being damaged by over current, and the aim of protecting a power apparatus is fulfilled.

The present invention discloses an application software online payment processing method and system, said method comprising: a software-switching prevention system receives a software-switching prevention request message from a billing authentication center, wherein the information carried in the software-switching prevention request message includes: mobile terminal identifier information, the application name of application software run on the mobile terminal, and software account number information corresponding to said application name; the software-switching prevention system, when it is determined that it is not possible to complete online payment of the mobile terminal SIM card balance, verifies, in accordance with the identifier information, the application name and the software account number information and whether software-switching behavior exists in regard to the mobile terminal, and returns, to the billing authentication center, the verification results regarding whether software-switching behavior exists in regard to the mobile terminal. The technical solution of the present invention effectively reduces a carrier's legacy bad debt.

The invention provides a method for inputting number-plate number rapidly by using a tax-control cash register keyboard. The method can input number-plate number rapidly and conveniently by using software switch control method through an equipment keyboard. The method only need to add an input method state on software without changing hardware design of product, the keyboard input on the state can automatic switch input method according with number-plate number encoding rule. The method can be used in tax-control cash register, business POS machine, and also can be widely used in keyboard kind electronic product such as mobile phone, little smart, PDA and hand computer.

The embodiments of the present invention disclose a message forwarding method and apparatus applied to a software defined network (SDN), wherein the SDN comprises at least one controller and a plurality of servers. The method comprises the following steps that: link state information in the SDN is obtained; the load sharing table of the first server in the plurality of servers is generated according to the link state information and the address of the destination server of the first server in the plurality of servers; and the load sharing table is sent to a software switch on the first server so that the software switch on the first server can perform message forwarding according to the load balancing table. According to the message forwarding method and apparatus applied to the software defined network (SDN) provided by the embodiments of the present invention, the load sharing table is dynamically generated, and therefore, the forwarding efficiency of load balancing data can be improved, and the maintenance complexity of load balancing can be reduced.