Abstract: A method for operating a wireless power transfer system includes determining a driving signal for transfer of the AC wireless signals, the driving signals based on an operating frequency for the AC wireless signals, a power requirement for the wireless power signals, data contained in the wireless data signals, and one or more thermal mitigation features. Each of the one or more thermal mitigation features are configured to reduce temperature of at least one surface or volume of the wireless transmission system or the wireless receiver system. The method further includes providing the driving signal to an amplifier of the wireless power transmission system and driving a transmitter antenna of the wireless power transmission system, by the amplifier, based on the driving signal.

Abstract: A method for operating a wireless power transfer system includes determining a driving signal for transfer of the AC wireless signals, the driving signals based on an operating frequency for the AC wireless signals, a power requirement for the wireless power signals, data contained in the wireless data signals, and one or more thermal mitigation features. Each of the one or more thermal mitigation features are configured to reduce temperature of at least one surface or volume of the wireless transmission system or the wireless receiver system. The method further includes providing the driving signal to an amplifier of the wireless power transmission system and driving a transmitter antenna of the wireless power transmission system, by the amplifier, based on the driving signal.

Abstract: The invention provides systems and methods for processing communication content from a user device. The method performed by a computer and comprising inputting an electronic communication that includes communication content and a routing character string. The communication content constituted by data generated as a result of, and representative of, characters keyed into the user device by the user. Maintaining a bin collection including bins. Performing processing on the communication content including identifying the user and a bin collection of the user based on the routing character string; and processing the communication content including (1) mapping first data to a command; and (2) mapping second data to a bin. The command dictates particular action to be performed, and the bin identifies an identified bin upon which to perform the action; and performing the action on the identified bin.

Abstract: The invention relates to a method of initializing a communications session between a plurality of terminals. According to the invention, the initialization method is adapted, as a function of capacity data for at least one terminal, to determine a set of at least one stream transmission channel to be set up between entities of a group of entities comprising said terminals, each channel being for setting up between a first entity and a second entity of the group either directly, or indirectly via at least one third entity of said group, and to transmit at least one entity identifier to at least one first entity of the group in order to set up at least one channel of the set. The invention also relates to a method of accessing a communications session, the method being adapted to receive at least one identifier of at least one entity with which at least one channel is to be set up and to set up at least one channel with at least one entity for which said at least one identifier has been received.

Abstract: This disclosure describes systems and methods for priority flow control in a network switching device having two or more egress queue managers for managing egress queues of ports of the network switching device. A first egress queue manager determines respective fill levels of packet data that is buffered in egress queues. The first egress queue manager generates a data structure that relates a port of the egress queue manager at which selected packets are ingressed and a port or an egress queue of the egress queue manager from which the selected packets are to be egressed. The first egress queue manager signals to one or more other egress managers the respective fill levels of egress queues along with other information to enable at least one of the other egress queue managers to make a priority flow control decision for one of the ports managed by the other egress queue manager.

Abstract: Systems, methods, and circuitries are provided to perform full duplex communication using edge timing in a common signal. In one example, a method for a slave device includes receiving a common signal resulting from combination of a slave signal transmitted by the slave device on a signal line and a master signal transmitted by the master device on the signal line. The common signal includes a series of signal periods having a first edge and a second edge. The method includes, in a period of the common signal: determining slave information to be communicated; selecting a second edge timing corresponding to the slave information; detecting the first edge in the common signal; transmitting a slave signal having a first slave edge at the second edge timing after the first edge; and determining master information based on a detected level of the common signal at a check point of the signal period.

Abstract: According to one embodiment, an active cable assembly may include a cable end, a data receiver, a controller characteristic circuit, and a controller. The data receiver, operable to receive a DC-balanced data signal, can be electrically coupled to a conductive input data line of the cable end. The controller characteristic circuit can be electrically coupled to the conductive input data line. The controller can be communicatively coupled to the data receiver. The controller may include a configurable communication port electrically coupled to the controller characteristic circuit, and memory for storing a boot loader. The controller can execute the boot loader to set the configurable communication port as an output for controller data signals and as an input for the controller data signals.

Abstract: Methods, devices, and systems for information distribution in a wireless communication system is provided. In one embodiment, a method of information distribution in a wireless communication system comprises receiving an information advertisement signal by a propagator node, wherein said information advertisement signal identifies information available from a distributor node; storing said information advertisement signal by said propagator node in a distributor routing table; and forwarding said information advertisement signal by said propagator node to another propagator node, a selector node, or both.

Abstract: According to one embodiment, an active cable assembly may include a cable end, a data receiver, a controller characteristic circuit, and a controller. The data receiver, operable to receive a DC-balanced data signal, can be electrically coupled to a conductive input data line of the cable end. The controller characteristic circuit can be electrically coupled to the conductive input data line. The controller can be communicatively coupled to the data receiver. The controller may include a configurable communication port electrically coupled to the controller characteristic circuit, and memory for storing a boot loader. The controller can execute the boot loader to set the configurable communication port as an output for controller data signals and as an input for the controller data signals.

Abstract: This disclosure provides systems and methods for processing packets. A system can include first computing device, a second computing device, and a first packet forwarding device. Each of the first computing device and the second computing device can be communicatively coupled to a respective port of the first packet forwarding device. Each port of the first packet forwarding device can be assigned a unique MAC address. For a first packet received from the first computing device, the first packet forwarding device can be configured to determine that a destination MAC address of the first packet matches the MAC address assigned to the port on which the first packet was received, and to forward the first packet to the second computing device, responsive to the determination. For a second packet received from the second computing device, the first packet forwarding device can be configured to forward the second packet via the port whose MAC address matches a source MAC address of the second packet.

Abstract: Aspects of the disclosure provide a method for packet processing. The method includes receiving a plurality of packets at a port of a network device. The plurality of packets belong to a packet flow having a sequence within a stream of packets. The method then includes mapping identifications respectively allocated to the plurality of packets into a data structure of ordered identifications to maintain the sequence, and generating a new packet instance during processing of a specific packet. The specific packet has a specific identification and is one of the plurality of the packets. Then, the method includes inserting a new identification allocated to the new packet instance into the data structure of ordered identifications next to the specific identification to maintain the sequence and transmitting the plurality of packets and the new packet instance from the network device according to the sequence maintained in the data structure.

Abstract: One or a plurality of sub-networks are defined in the communications network. Each of the sub-networks includes a plurality of network nodes from the communications network. One or a plurality of the sub-networks represent pre-determined sub-networks, in which respective pre-determined network nodes have both the function of a global slave node and the function of a local master node. The one or the other network nodes of the respective pre-determined sub-networks are local slave nodes. In addition to global synchronization using the global master node and the global slave nodes, local synchronization is also performed in the pre-determined sub-networks using the local master node and the local slave nodes. Thus, in the event of an error outside a pre-determined sub-network, the local synchronization may be continued, whereas the global synchronization is aborted. It is thus avoided that an erroneous synchronization is propagated into corresponding sub-networks.

Abstract: An example method for to inter-pod traffic redirection and handling in a multi-pod network environment is provided and includes receiving a packet with an overlay header outgoing from a first pod, identifying the packet as redirected based on a source address in the overlay header indicating a second pod and a destination address in the overlay header indicating a third pod, the first pod being distinct from the second pod and the third pod, setting a redirection bit in the overlay header tagging the packet as redirected, and transmitting the packet to the third pod.

Abstract: Aspects of the disclosure provide a receiver. The receiver includes a receiving (Rx) estimation controller configured to set a bit load of a subcarrier in a bit allocation table (BAT) at a transmitter, a receiving unit configured to receive, from the transmitter, a bit sequence that is loaded to the subcarrier based on the bit load of the subcarrier in the BAT wherein the bit sequence is transmitted through a channel from the transmitter to the receiving unit, and a channel estimator configured to estimate a condition of the channel based on the bit sequence that is loaded to the subcarrier.

Abstract: A method, system, and computer-readable medium to generate time based data, including defining a time based data generation scenario, the time based data generation scenario including at least one event, the event representing an action at a specific time; a plurality of time segments, each time segment defining a particular temporal phase of the scenario and at least one time segment being embedded with the at least one event; and a time envelope to embed time segments; and generating time based data by executing the time based data generation scenario.

Abstract: Described embodiments process data packets received that include a source address and at least one destination address. If the destination address is stored in a memory of an I/O adapter, the received data packet is processed in accordance with bridging rules associated with each destination address stored in the I/O adapter memory. If the destination address is not stored in the I/O adapter memory, the I/O adapter sends a task message to a processor to determine whether the destination address is stored in an address table stored in a shared memory of the network processor. The I/O adapter memory has lower access latency than the address table. If the destination address is stored in the address table, the received data packet is processed in accordance with bridging rules stored in the address table and the bridging rules stored in the I/O adapter memory are updated.

Abstract: A modular system uses point-to-point communication between field-programmable gate arrays (FPGAs) on a control module and each port module, respectively, to manage basic module functions, such as power, environmental monitoring, and health checks on the modules and their components. This allows a chassis to be managed without fully powering each card first, frees processors on the modules from having to perform health checks, allows dedicated resources to rapidly monitor the health of each card, and prevents one bad card from disabling management of all cards.

Abstract: A method for an HTTPS content filtering device includes forwarding a domain name resolution request from a client to a DNS server. One or more virtual IP addresses are generated, which correspond to one or more real IP addresses of a domain name resolution result received from the DNS server. The one or more virtual IP addresses are added to the domain name resolution result and sent to the client. When an HTTPS access request from the client is received, a real IP address corresponding to the virtual target IP address is determined, and the HTTPS access request is sent to an HTTPS server with the obtained real IP address. An HTTPS access result is received and filtered, and the virtual IP address is defined as the resource IP address for sending the filtered HTTPS access result to the client. An HTTPS content filtering device is also provided.

Abstract: Disclosed herein is a first network node and a method in the first network node and a charging node and a method in the charging node for handling dropped data packets in a communications network, comprising: obtaining information indicating dropped data packets for a wireless device served by the first network node; detecting based on the obtained information that an amount associated with the dropped data packets reaches a first threshold or that a timer associated with the dropped data packets reaches a second threshold; and transmitting a message to a policy node, which message comprises at least one of information indicating the amount associated with the dropped data packets or information indicating that the amount has reached the first threshold or indicating that the timer has reached the second threshold.

Abstract: One embodiment provides a system that facilitates an intermediate node to handle a potential timeout event. During operation, the system receives, by an intermediate node, a keep-alive control packet which indicates a name for an Interest message, an indicator to keep alive a Pending Interest Table (PIT) entry, and a time period for which to keep the PIT entry alive. The intermediate node determines whether the keep-alive control packet corresponds to the PIT entry based on the name, and, responsive to determining that the keep-alive control packet corresponds to the PIT entry, updates a timeout value of the PIT entry based on the time period indicated in the keep-alive control packet. Responsive to determining one or more interfaces specified in the PIT entry from which the Interest message is received, the intermediate node forwards the keep-alive control packet to the one or more interfaces.

Abstract: A gateway electronic control unit (ECU) includes an update condition table that indicates a vehicle load state that updates an ECU program corresponding to each of several ECUs. The gateway ECU wirelessly communicates with an external center apparatus to receive an update file. The gateway ECU uses the update condition table to determine whether the current vehicle load state equals a lightly loaded state capable of updating an ECU program or a heavily loaded state incapable of updating an ECU program. If the current vehicle load state is determined to equal the lightly loaded state, the gateway ECU updates an ECU program using the update file received from the center apparatus. If the current vehicle load state is determined to equal the heavily loaded state, the gateway ECU performs environment improvement control based on the update condition table to change the current vehicle load state to the lightly loaded state.

Abstract: A charging apparatus for recognizing an adaptor is applied to an alternating current to direct current adaptor. The charging apparatus includes an input side universal serial bus interface, a data voltage detection unit, a microcontroller and a first charging power output unit. The data voltage detection unit detects a kind of the alternating current to direct current adaptor. The microcontroller determines an overall output charging power of the charging apparatus according to the kind of the alternating current to direct current adaptor. The microcontroller is configured to control the first charging power output unit to output the overall output charging power to a first battery.

Abstract: The invention provides systems and methods for processing communication content from a user device. The method performed by a computer and comprising inputting an electronic communication that includes communication content and a routing character string. The communication content constituted by data generated as a result of, and representative of, characters keyed into the user device by the user. Maintaining a bin collection including bins. Performing processing on the communication content including identifying the user and a bin collection of the user based on the routing character string; and processing the communication content including (1) mapping first data to a command; and (2) mapping second data to a bin. The command dictates particular action to be performed, and the bin identifies an identified bin upon which to perform the action; and performing the action on the identified bin.

Abstract: A method and apparatus to monitor architecture events is disclosed. The architecture events are linked together via a push bus mechanism with each architectural event having a designated time slot. There is at least one branch of the push bus in each core. Each branch of the push bus may monitor one core with all the architectural events. All the data collected from the events by the push bus is then sent to a power control unit.

Abstract: Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving, at a first input line card of the network device, a message, the message including a destination address; transmitting the message, by the first input line card, to the second input line card based on the determination that the second input line card is configured with routing information related to the destination address; determining, by the second input line card and based on the routing information related to the destination address, that the message should be forwarded via a first output line card of the network device to another network device; transmitting the message, by the second input line card, to the first output line card based on the determination that the message should be forwarded; and transmitting the message, by the first output line card, to another network device.

Abstract: A system, apparatus, and method for estimating available bandwidth for transmitting a media stream over a network, the media stream having a plurality of frames. One method includes receiving some of the plurality of frames, each frame of the plurality of frames having a inter-frame size differential and an inter-arrival time differential, detecting whether at least some of the inter-arrival time differentials are outside of a steady-state range using at least some of the inter-frame size differentials, and estimating an available bandwidth based on the detected change and using a processor.

Abstract: A method and system for service clock transparent transmission in an optical transport network (OTN) are provided. The system includes a service accessing end and an OTN receiving end; the method includes the following steps: the OTN receiving end performs de-mapping operation to an OTN frame after receiving the OTN frame, and performs two-level buffering operation to the service data flow recovered therefrom, a first buffering unit performs a homogenization treatment to the service data flow and then outputs to a second buffering unit, which the second buffering unit outputs the service data flow according to the service clock after receiving the service data flow. After adopting the present invention, it is able to ensure that the quality of the recovered service clock is relatively higher, which meets the customer requirement on the related specification of the service clock.

Abstract: A field bus network adapter includes a first field bus connection configured to connect a first field bus cable, a second field bus connection configured to connect a second field bus cable, and N number of third field bus connections configured to connect a third cable each. The first field bus connection and the second field bus connection are connected to the N number of third field bus connections such that (i) data received at the first field bus connection are output at a first of the N number of third field bus connections, (ii) data received at an nth of the N number of third field bus connections are output at an (n+1)th of the N number of third field bus connections, and (iii) data received at an Nth of the N number of third field bus connections are output at the second field bus connection.

Abstract: Control devices in a motor vehicle, having first sequence-controlled control devices being connected to a first data bus and second sequence-controlled control devices being connected to a second data bus, are networked. A first control device sends a first message via the gateway device into the first and second data buses. At least a second control device receives the first message and checks whether the receiving of the first message is required for the corresponding control device. The second control device sends out a response message, which indicates whether the second control device has a corresponding need to receive the first message. In the event of such a need, a routing default is established and/or an existing routing default is changed in a gateway device.

Abstract: The present invention is directed a digital data interface device for transferring digital presentation data at a high rate over a communication link. The digital data interface device includes a message interpreter, content module and a control module. The digital data interface device may include an MDDI link controller. The digital data interface device can be used to control a peripheral device, such as a camera, bar code reader, image scanner, audio device or other sensor. In one example, a cellular telephone having a camera with an MDDI link and a digital data device interface is provided.

Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for transmitting a plurality of PUCCHs in a wireless communication system, wherein the method comprises the following steps: checking a resource for a first PUCCH among the plurality of PUCCHs; inferring, from the resource for the first PUCCH, a resource for the remaining one or more second PUCCHs excluding the first PUCCH among the plurality of PUCCHs; and transmitting the plurality of PUCCHs simultaneously via corresponding relevant resources.

Abstract: In a switching system using an N+1 switch redundancy method, a backplane connects a plurality of switch cards that are mounted in a half-slot of an upper end portion and a lower end portion of the center of a chassis and a plurality of line cards that are mounted in the half-slot of the upper end portion and the lower end portion of the chassis at both sides of the plurality of switch cards. In this case, in each line card and each switch card, a line card and a switch card of the same position are connected in the upper end portion or the lower end portion of the chassis using some connector groups, and a line card and a switch card that are disposed at the upper end portion or the lower end portion of the chassis are crossed and connected using the remaining connector groups.

Abstract: Embodiments of the present invention include network cables that include a number of inter-integrated circuit communication addressable components in the connector heads. The inter-integrated circuit communication addressable components include signal translators and switches for communicating with environmental and electrical sensors, memories, and controllers in the connector heads and the computers or network interface cards to which they are coupled. Such embodiments allow for localized monitoring of environmental and operational data as well as location or server computer specific control of networked-server operations. Such information and control is useful in reducing the cost and increasing the efficiency of server farm installation cooling, maintenance, operation, and troubleshooting.

Abstract: A method is provided for transmitting a packet including information describing a bus transaction to be executed at a remote device. A bus transaction is detected on a first bus and a network packet is generated for transmission over a network. The network packet includes an opcode describing the type of bus transaction. One or more control signals of the bus transaction map directly to one or more bits of the opcode to simplify decoding or converting of the bus transaction to the opcode. The packet is transmitted to a remote device and the bus transaction is then replayed at a second bus. In addition, the packet includes a data field having a size that is a multiple of a cache line size. The packet includes separate CRCs for the data and header. The packet also includes a transaction ID to support split transactions over the network. Also, fields in the packet header are provided in a particular order to improve switching efficiency.

Abstract: A gateway for data transfer between serial buses, including multiple communication modules that are each provided for connection of one serial bus, and that carry out a conversion between data packets and data words, a bus master that, via an internal control bus, controls a word-based transfer of data via an internal data bus between two communication modules, the bus master applying a source address via a source address bus to an internally transmitting first communication module, and a destination address via a separate destination address bus to an internally receiving second communication module, data received in data packets by the first communication module via a first serial bus connected thereto being transferred from the first communication module directly without buffering, in word-based fashion in one or more data words, via the internal data bus to the second communication module, which delivers these transferred data, in data packets, via a second serial bus connected to the second communication

Abstract: The embodiments of the present invention disclose a backplane and backplane system. The backplane includes at least two service slots with the same function and an exchange slot. Among the pins of different service slots with the same function respectively connected to the exchange slot, at least two pins are arranged to resemble a stepped form. When arranged in this manner, the distribution and orientation of the connection lines connecting the pins of the service slots with the same function to the exchange slot may be adjusted, and wiring density within a single wiring layer may be increased, which therefore enables the connection lines between the service slots and the exchange slot to be staggered from each other in less wiring layers or even one wiring layer, and as a result, decreases the number of the wiring layers to be used, and reduces the costs of the backplane.

Abstract: Delivering multicast data traffic over a communication network includes a first network node delivering multicast data traffic to second network nodes. The first and second network nodes are connected by a transmission network in a ring architecture and implement a point-to-multipoint layer 2 protocol. A method includes at the first network node: collecting alarms signals indicative of a failure along the whole ring and of the second network nodes. Based on a current state of the alarm signals, delivering the multicast data traffic either in a first delivery direction along the ring, or in a second delivery direction along the ring opposite to the first delivery direction, or in both the first and second delivery directions. At each of the second network nodes: collecting alarm signals indicative of a failure of the transmission network locally to the second network node and of the second network node.

Abstract: A telephone system comprising switching circuitry configured for coupling a call to a telephone extension coupled to the system, voice processing circuitry configured for automatically interacting with the call, a microprocessor, a first data bus connected between the microprocessor and the switching circuitry, and a second data bus connected between the microprocessor and the voice processing circuitry.

Abstract: A master node (12) sends an identification signal for designating a communication channel in an identification signal time slot. When the own node matches the node in which the communication channel designated by the identification signal sent from the master node (12) is set in the identification signal time slot, the master node (12) and slave nodes (131 to 13n) each perform data transmission via the communication channel, based on the set contents of the communication channel, in the data transmission time slot corresponding to the identification signal time slot in which the identification signal has been sent.

Abstract: The present invention enables a capability for packet-switched network service providers, e.g., VoIP network service providers, to monitor the CPE application usage of their subscriber to ensure that changes to the network do not interfere with these applications and to potentially provide changes to the network to enhance these premise based applications. Monitoring software will be installed in the CPE to monitor upgrades and features installed by the end users so that any potential impact to these applied applications can be assessed before a VoIP network upgrade is carried out.

Abstract: A bus controller includes: a data receiving section for receiving output status information from other bus controllers on transmission routes available; a route load detecting section for calculating uniformity of distribution index indicating the degree of non-uniformity in transmission flow rate between the routes based on the output status information; a routing section for determining transmission routes, of which the transmission flow rates have been adjusted by reference to the index; a packet assembling section for generating a packet; a data output section for outputting the packet through one of output ports; a header analyzing section for determining which output port is connected to a transmission route chosen by reference to information about the packet receiving end; and a data output section for outputting the packet through the output port.

Abstract: A high-radix interprocessor communications system and method having a plurality of processor nodes, a plurality of first routers and a plurality of second routers. Each first router is connected to a processor node and to two or more second routers. Each first router includes input ports, output ports, row busses, columns channels and a plurality of subswitches arranged in a n x p matrix. Each row bus receives data from one of the plurality of input ports and distributes the data to two or more of the plurality of subswitches. Each column distributes data from one or more subswitches to one or more output ports. Each row bus includes a route selector, wherein the route selector includes a routing table which selects an output port for each packet and which routes the packet through one of the row busses to the selected output port.

Abstract: An adaptive service bus comprising adaptable logical components for transporting communications. A configuration of each logical component of the adaptive service bus is determined by receipt of a control message that establishes the behavior of that component. Thereafter, communications that are received by the adaptive service bus are processed in accordance with “rules” established by the configurations. The configuration of the adaptive service bus may be changed in real time to accommodate changes in communication types and/or changes in the processing rule for a particular communication type.

Abstract: A network switch fabric is provided for a clustering system to facilitate flexibility of network-related interconnection selection and system scalability. The network switch fabric includes replaceable network switch(s) and network interface(s) selectively configured on a base board. Multiple types of interconnection protocols with similar characteristics will be able to implement on a common infrastructure of network switch fabric. A pass through card operating as a network interface is also applicable on the network switch fabric to directly connect with an external network. The pass through card allows the network switch fabric supporting the clustering system to be scalable, thereby capable of supporting a large-scale cluster computing.

Abstract: A communications system for a motor vehicle, including a plurality of electrical components, a data bus structure to which the components are connected in order to transmit information among the components, and a power line structure to which the components are connected in order to be supplied with power. The information is transmitted in successive cycles over the data bus structure, each cycle including at least one time window for transmitting information at specific points in time and at least one event window for transmitting information in response to specific events. The communications system includes an arrangement for redundantly transmitting information which merely transmits the information transmitted in the at least one time window over the data bus structure at least partially over the power line structure as well.

Abstract: A data flow control method and system within a data switch. The data switch includes a plurality of input sections each having an associated input buffer and each transmitting data to an output section. In response to a detection of congestion within the output section, data transmissions from the plurality of input sections to the output section are paused. Input buffer occupancies of each of the input sections are then determined. Thereafter, and in response to a backpressure relief signal, the restart of said data transmission from each of the input sections to the output section is delayed in inverse proportion to each of the determined input buffer occupancies.

Abstract: Data transmission method for voice data packets (SDP) between at least one voice signal processor (7-i) and a network processor (3) using a voice data bus (10) in time-division multiplex data frames which each have a predetermined number of timeslots (TS), where the voice data packets (SDP) from a voice signal processor (7-i) are transmitted in split form via the voice data bus (10) in particular timeslots provided for the respective voice signal processor (7-i).

Abstract: A communication module system has an interface module for interconnection with at least one communication module, the interface module containing an input, via which the interface module receives first data and/or messages, a first transmission path and a second transmission path being provided in the interface module, a coupling element being provided in the second transmission path, which coupling element is implemented in such a way that the first data and/or messages are at least partially combined to form second data and/or messages.

Abstract: In an apparatus for generating a synchronized sub-carrier signal based on a pilot signal, a zero-crossing detector may detect a pilot signal zero-crossing in response to consecutive pilot signal samples. In response to the zero-crossing detector, a sub-carrier signal phase sampler generates a sequence of sub-carrier phase samples at a sampling frequency, inclining a first sub-carrier signal phase sample and additional sub-carrier signal phase samples at predetermined phase sample intervals. A phase sample counter counts the number of phase samples obtained by the sub-carrier signal phase sampler. A sub-carrier signal generator generates a synchronized sub-carrier signal in response to the sub-carrier signal phase samples.

Abstract: A USB-based isolator system conveys USB signals between a pair of galvanically isolated circuit systems and supports controlled enumeration by a downstream device on upstream USB signal lines. The isolator system provides a multi-mode voltage regulator to support multiple voltage supply configurations. The isolator system further provides control systems for each of the isolated circuit systems and provides robust control in a variety of start up conditions. Additionally, the isolator system includes refresh timers and watchdog mechanisms to support persistent operation but manage possible communication errors that can arise between the isolated circuit systems.