Abstract: Methods and systems for fast convergence. One embodiment includes the following steps: extracting a digital representation of a common mode signal of a received differential signal sent by a transceiver, and generating, by a fast-adaptive mode-conversion canceller (FA-MCC), a compensation signal to mitigate differential interference; feeding the received differential signal to at least one of the following: a digital equalizer, and a digital canceller (DEDC); wherein the FA-MCC and the DEDC feed a slicer; responsive to receiving an indication that a serious differential interference has occurred, indicating the transceiver to transmit known data; and utilizing the received known data for improving the accuracy of the slicer's errors, which enables rapid adaptation of the FA-MCC to a level that mitigates the serious differential interference and enables requesting retransmission of erred packets fast enough to maintain a fixed rate of data transmission over a 2-millisecond window.

Abstract: Systems and methods for fast recovery from serious interferences using limited retransmissions. In one embodiment, a system includes a transceiver coupled to a second transceiver over a communication channel. The transceiver maintains a pre-retransmission packet loss rate below 1% when there is no serious interference. A limited resources retransmission module (LRRM) stores, for a delayed transmission, a maximum amount of erred packets that are accumulated during less than 1 ms at data rate above 500 Mbps. And within less than 1 ms from receiving an indication that the serious interference has occurred, a fast-adaptive canceller mitigates the effect of the serious interference, bringing the effect to a level that enables the communication system to successfully transmit data at a rate of above 500 Mbps.

Abstract: Methods and systems for fast recovery, such as a transceiver that assists a second transceiver to recover rapidly from quality degradation. In one embodiment, the transceiver includes a receiver and a transmitter. The receiver receives from the second transceiver an indication to transmit known data, wherein utilizing the known data enables the second transceiver to recover within less than 1 millisecond from the quality degradation. And the transmitter transmits the known data, wherein the known data comprises bitwise complement code words of an idle sequence, and each bitwise complement code word appears in the idle sequence.

Abstract: Methods and systems for calculating local latency variations in an incremental manner, including the steps of updating a first local latency variation of a first streaming session at a first output port of a first switch; identifying a relationship that the first streaming session is passing through a second output port of a second switch after passing through the first output port; wherein a second streaming session is passing through the second output port; and updating a second local latency variation of the second streaming session at the second output port, based on the relationship. Wherein the updated second local latency variation is calculated based on the updated first local latency variation.

Abstract: A transceiver and a corresponding method configured to recover within less than 1 ms from quality degradation in its operating point. The transceiver includes: a receiver analog front end (Rx AFE), an adaptive module comprising at least one of an adaptive digital equalizer and an adaptive digital canceller (ADEC), a common mode sensor AFE (CMS-AFE), a fast-adaptive mode-conversion canceller (FA-MCC), and a slicer. The Rx AFE receives signals from a second transceiver. Shortly after identifying quality degradation in the transceiver's operating point, the transceiver indicates the second transceiver to reduce the rate of the transmitted data. And within less than 1 ms, the transceiver utilizes the improved detection rate to improve the accuracy of the slicing errors, which enables fast adaptation of the ADEC, that improves the quality in the transceiver's operating point to a level that enables the transceiver to indicate the second transceiver to increase the rate.

Abstract: System and method for a resource reservation network that switches fast between bi-directional co-shared sessions having different network paths. A session creation module (SCM) creates a bi-directional parent session (Sp), between first and second session partners, by: allocating co-shared network resources over a first network hop, and allocating network resources over a second network hop. The SCM further creates a bi-directional derivative session (Sd) between the first session partner and a third session partner, by: allocating network resources to the Sd over a third network hop, and not allocating specifically for the Sd all the network resources required for the Sd over the first network hop. And the network is able to switch between the Sp and the Sd within a duration that is less than half the duration required to create the Sd.

Abstract: Methods and systems to release network bandwidth for a new video stream. One method includes the following steps: receiving, by a first real-time video encoder (RT-VE), a first incoming high-definition uncompressed video (HD-UV), compressing it into a first compressed video using a first low compression ratio, and sending it over a first network path to a first real-time video decoder (RT-VD). Extracting, by the first RT-VD, an outgoing HD-UV from the first compressed video. Inferring that after establishing the first network path, and as a result of insufficient bandwidth on a common link comprised in the first network path, a second RT-VE cannot send a second compressed video to a second RT-VD over a second network path that includes the common link. And Increasing on-the-fly the first compression ratio in proportion to the insufficient bandwidth, in a manner that is visually lossless for a human viewing the outgoing HD-UV.

Abstract: Methods and systems for creating bi-directional co-shared sessions and switching between bi-directional co-shared sessions. Embodiment of one method includes the following steps: Sending a first message over a bi-directional parent session network path (Pp) to indicate allocation of network resources along the Pp, including co-shared network resources. Creating the parent session (Sp) by sending a first session creation message. Sending a second message over a bi-directional derivative session network path (Pd) to indicate allocation of non-co-shared network resources along the Pd. And creating the Sd by sending a second session creation message.

Abstract: Methods and systems for resource reservation networks configured to maintain low latency and latency variation of co-shared sessions. A session creation module (SCM) creates a bi-directional parent session (Sp), between first and second session partners, by: allocating co-shared network resources over a first network hop, and allocating network resources over a second network hop; wherein the network resources allocated to the Sp guarantee a maximum end-to-end latency variation (e2eLV) below 100 usec. The SCM further calculates a maximum e2eLV of a potential bi-directional derivative session (Sd) between the first session partner and a third session partner; wherein the potential Sd utilizes network resources over a third network hop and the co-shared network resources over the first network hop. And the SCM creates the Sd responsive to determining that the maximum e2eLV of the Sd being below 100 usec.

Abstract: Methods and systems for fast switching between bi-directional co-shared sessions having different network paths over a resource reservation network. Embodiment of one method includes: creating a bi-directional parent session (Sp) between first and second session partners, creating a bi-directional derivative session (Sd) between the first session partner and a third session partner, and reassigning a predetermined amount of co-shared network resources (PA-CSNR) assigned to the Sp using the following steps: (i) sending a first message to request the second session partner to stop using the PA-CSNR, (ii) sending a second message to register whether the PA-CSNR are assigned to the Sd, and (iii) sending a third message to allow the third session partner to utilize at least some of the PA-CSNR for the Sd.

Abstract: Methods and systems for changing topology of an asymmetric network and operating end-devices coupled to a self-configurable asymmetric network. The self-configurable asymmetric network supports at least two different network topologies and enables: displaying information regarding end-devices that may be accessed via different network topologies, selecting a network topology by setting the direction of a self-configurable asymmetric link, and indicating a subset of the end-devices that are accessible via the selected network topology.

Abstract: Systems and methods for fixed delay video switching. One embodiment of the system describes a fixed delay video communication link, which includes: a real-time video encoder (RT-VE) that receives an incoming high-definition uncompressed video (HD-UV), compresses the incoming HD-UV into first or second HD compressed video, and transmits the HD compressed video over a communication link to a real-time video decoder (RT-VD). The RT-VD decompresses the HD compressed video into an outgoing HD-UV. And wherein on-the-fly switches between the first and second compression ratios, while continuing to receive the incoming HD-UV uninterruptedly, are both visually lossless and maintain the same fixed delay between corresponding pixels of the incoming HD-UV and the outgoing HD-UV.

Abstract: System and method indicating delays added to packets due to retransmission events. The method includes the steps of receiving multiple packet streams and multiplexing them into a first multiplexed packet stream; storing in memory the first multiplexed packet stream together with time indications; receiving a retransmission request and selecting data for retransmission; multiplexing the first multiplexed packet stream and the data for retransmission into a second multiplexed packet stream; utilizing the time indications for calculating delays that were added to packets of the second multiplexed packet stream as a result of fulfilling the retransmission request; adding the calculated delays to at least some of the packets of the second multiplexed packet stream; and transmitting the second multiplexed packet stream.

Abstract: Systems and methods for low-delay video streaming featuring multiple video compression ratios. One embodiment of the system includes: a real-time video encoder (RT-VE) that receives an incoming high-definition uncompressed video (HD-UV), processes the incoming HD-UV according to first and second compression ratios, and sends the processed video over a resource reservation communication link to a real-time video decoder (RT-VD). The compression delay added by the RT-VE is below the duration of a single video frame, and the RT-VD converts the processed video into an outgoing HD-UV. Wherein on-the-fly switches between the first and second compression ratios, while continuing to receive the incoming HD-UV uninterruptedly, are both visually lossless switches and maintain a total delay between corresponding frames of the incoming HD-UV and the outgoing HD-UV that is below duration of two video frames.

Abstract: A communication link comprising: a first transceiver configured to transmit a first set of packets at a predetermined rate with a first error resistance level, store the transmitted data in a buffer, receive a retransmission request, and retransmit the relevant data using one or more packets encoded with a second error resistance level that is higher than the first error resistance level. And a second transceiver configured to receive the first set of packets, detect an erroneous packet, request retransmission of the erroneous packet, and forward the data received in the packets according to its original order approximately after a fixed delay.

Abstract: Methods and systems for fast recovery from serious differential interferences. An exemplary method includes the following steps: transmitting, by a transmitter to a transceiver, at a fixed data rate above 100 Mbps; receiving, by a receiver from the transceiver, an indication indicating that the transceiver is experiencing a serious interference; responsive to the indication, reducing the data rate at which the transmitter transmits; storing excess data that could not be sent during the period of the reduced data rate; and increasing, within less than 1 millisecond, the data rate at which the transmitter transmits to a level that enables it to transmit both the stored excess data and the ongoing data at the fixed data rate.

Abstract: Method and network for connecting a first end device to a network. One method includes the following steps: supporting, by a common data link layer, both Ethernet protocol and time sensitive network protocol; utilizing the Ethernet protocol for discovering, by the first end device, at least one other end device that is connected to the network; and utilizing the time sensitive network protocol for sending time sensitive data by the first end device to the at least one other end device over the network.

Abstract: System and method for utilizing transmission of known sequences to indicate qualities of operating points of first and second transceivers. One method includes the following steps: transmitting a first known sequence by a first transceiver upon identifying a quality degradation in its operating point; and replying with a second known sequence by a second transceiver upon receiving the first known sequence. The method further includes the steps of transmitting the second known sequence by the second transceiver upon identifying a quality degradation in its operating point, and replying with the first known sequence by the first transceiver.

Abstract: Methods and systems for calculating latency variations in a distributed manner, including the steps of: calculating, by first and second switches, first and second local latency variations, of first and second streaming sessions, at first and second output ports of the first and second switches, respectively. Receiving, by the third switch, the first and second local latency variations; wherein a first and second paths of the first and second streaming sessions, respectively, are passing through a third output port of the third switch after passing through the first and second output ports, respectively. And calculating, by the third switch, a third local latency variation of the first streaming session at the third output port, based on the first and second local latency variations.

Abstract: A transceiver and a corresponding method configured to recover within less than 1 ms from quality degradation in its operating point. The transceiver includes: a receiver analog front end (Rx AFE), an adaptive module comprising at least one of an adaptive digital equalizer and an adaptive digital canceller (ADEC), a common mode sensor AFE (CMS-AFE), a fast-adaptive mode-conversion canceller (FA-MCC), and a slicer. The Rx AFE receives signals from a second transceiver. Shortly after identifying quality degradation in the transceiver's operating point, the transceiver indicates the second transceiver to reduce the rate of the transmitted data. And within less than 1 ms, the transceiver utilizes the improved detection rate to improve the accuracy of the slicing errors, which enables fast adaptation of the ADEC, that improves the quality in the transceiver's operating point to a level that enables the transceiver to indicate the second transceiver to increase the rate.