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1. 发明申请

US20220417178A1 FRAME DATA PROCESSING 有权
公开(公告)号：US20220417178A1
公开(公告)日：2022-12-29
申请号：US17850107
申请日：2022-06-27
申请人： Renesas Electronics Corporation.
发明人： Christian MARDMÖLLER , Thorsten HOFFLEIT
IPC分类号： H04L49/109 , H04L69/22 , H04L49/101
摘要： A circuit for use in frame filtering is disclosed. The circuit includes a plurality of comparator units. Each comparator unit configured, in response to receiving at least a part of a data frame, to perform a determination whether data in a portion of the at least part of the data frame matches respective reference data and to provide a result to a comparator unit output based on the determination. The circuit includes a crossbar switch having crossbar inputs coupled to respective comparator unit outputs and configured to provide sets of crossbar switch outputs via configurable interconnects; and a set of result-combining logic units, each result-combining logic unit coupled to a respective set of crossbar switch outputs, and configured to provide a respective logic unit output.

2. 发明授权

US11438132B2 Systems and methods for the design and implementation of input and output ports for circuit design 有权
公开(公告)号：US11438132B2
公开(公告)日：2022-09-06
申请号：US16920203
申请日：2020-07-02
申请人： CHRONOS TECH LLC
发明人： Stefano Giaconi , Giacomo Rinaldi , Matheus Trevisan Moreira , Matthew Pryor , David Fong
IPC分类号： H04L7/00 , H04L41/06 , H04L47/24 , H04L49/90 , H04L49/101 , H04L49/00 , H04L49/25 , H04L45/74 , H04L45/302
摘要： Systems and methods for providing input and output ports to connect to channels are provided. Input and output ports are the basic building blocks to create more complex data routing IP blocks. By aggregating these modular ports in different ways, different implementations of crossbar or Network on Chip (NoC) can be implemented, allowing flexible routing structure while maintaining all the benefits of channels such as robustness against delay variation, data compression and simplified timing assumptions.

3. 发明授权

US11425039B2 Packet header field extraction 有权
公开(公告)号：US11425039B2
公开(公告)日：2022-08-23
申请号：US16695049
申请日：2019-11-25
申请人： Barefoot Networks, Inc.
发明人： Patrick Bosshart
IPC分类号： H04L12/741 , H04L12/931 , H04L45/745 , H04L45/00 , H04L49/101 , H04L45/64 , H04L49/1546 , H04L69/22 , H04L45/74 , H04L45/42
摘要： Some embodiments provide a method for processing a packet for a pipeline of a hardware switch. The pipeline, in some embodiments, includes several different stages that match against packet header fields and modify packet header fields. The method receives a packet that includes a set of packet headers. The method then populates, for each packet header in the set of packet headers, (i) a first set of registers with packet header field values of the packet header that are used in the pipeline, and (ii) a second set of registers with packet header field values of the packet header that are not used in the pipeline.

4. 发明授权

US11418442B2 Video router 有权
公开(公告)号：US11418442B2
公开(公告)日：2022-08-16
申请号：US16736861
申请日：2020-01-08
申请人： Evertz Microsystems Ltd.
发明人： Rakesh Patel
IPC分类号： H04L45/60 , H04L49/20 , H04L49/101
摘要： The embodiments described herein provide a data transmission system comprising a plurality of video routers, a supervisory system for transmitting one or more router configuration signals to one or more video routers, and a control communication network for coupling the plurality of video routers and the supervisory system. Each router in the system comprises a backplane including a plurality of backplane connections, at least one line card and at least one fabric card. Each line card comprises a plurality of input ports and output ports where each input and output port is coupled to a respective external signal through the backplane. Each line card further comprises a line card cross-point switch having a plurality of input switch terminals and a plurality of output switch terminals. Each fabric card comprises a fabric card cross-point switch having a plurality of input switch terminal and a plurality of output switch terminals. Furthermore, each line card and each fabric card comprises a card controller where the card controller selectively couples one or more input switch terminals of a cross-point switch to the output switch terminals of that cross-point switch. The cross-point switches being manipulated by the card controller may belong to one or more different cards within the same video router.

5. 发明申请

US20220124021A1 REACHABILITY MATRIX FOR NETWORK VERIFICATION SYSTEM 有权
公开(公告)号：US20220124021A1
公开(公告)日：2022-04-21
申请号：US17646336
申请日：2021-12-29
申请人： Huawei Technologies Co., Ltd.
发明人： Yan Sun , Wei Xu
IPC分类号： H04L45/02 , H04L49/101 , H04L45/745
摘要： A network verification system processes a network forwarding state into atomic predicates and compresses a network routing table into an atomic predicates indexes set. A transitive closure among all pairs of nodes in the network is calculated from the atomic predicates and atomic predicates indexes set to generate an all-pair reachability matrix Mn of the network. A reachability report for the network is recursively generated for respective nodes based on the all-pair reachability matrix. The reachability report is used to dynamically program the network.

6. 发明授权

US11564327B2 Connectors for a networking device with orthogonal switch bars 有权
公开(公告)号：US11564327B2
公开(公告)日：2023-01-24
申请号：US16514623
申请日：2019-07-17
申请人： Cisco Technology, Inc.
发明人： Pascal Thubert , Charles Calvin Byers
IPC分类号： H05K7/14 , H01R13/193 , H05K7/20 , H05K7/16 , G02B6/42 , H01R43/26 , G01J1/44 , H04Q11/00 , H04L49/15 , G06F1/26 , G06F1/3209 , H04L49/101 , H04B10/60 , H04B10/50
摘要： Connectors for a networking device may be provided. A networking device may comprise a first plurality of switch bars each comprising a first switch type arranged parallel to one another, a second plurality of switch bars each comprising a second switch type arranged parallel to one another, and a third plurality of switch bars each comprising a third switch type arranged parallel to one another. The first plurality of switch bars, the second plurality of switch bars, and the third plurality of switch bars may be arranged orthogonally. A first one of the first plurality of switch bars may be connected to a first one of the second plurality of switch bars via a retractable mechanical connector mechanism.

7. 发明授权

US11533276B2 Universal radio frequency router with an automatic gain control 有权
公开(公告)号：US11533276B2
公开(公告)日：2022-12-20
申请号：US17114692
申请日：2020-12-08
申请人： Evertz Microsystems Ltd.
发明人： Eric Fankhauser , Constantin Lacatus
IPC分类号： H04W56/00 , H04L49/101 , H04W52/52
摘要： Various embodiments are described herein for a radio frequency (RF) signal router. In one example embodiment, the RF router comprises a controller, an input stage, an intermediate stage and an output stage. The input stage includes RF input terminals, pre-processing circuit and input processors, where each RF input terminal receives an incoming RF signal, each pre-processing circuit processes the incoming RF signal based on its power level, and each input processor adjusts a power level of an input RF signal based on a first controller signal to generate a processed input RF signal. The intermediate stage comprises intermediate switch matrices coupled to a controller and input processors, and configured to route intermediate RF signals. The output stage comprises output processors coupled to the controller, where each output processor is configured to adjust a power level of an output RF signal based on a second controller signal and generate a processed output RF signal, and where the second controller signal corresponds to the first controller signal.

8. 发明授权

US11463378B2 Digital switch, wireless communication device, control station, and wireless communication control method for switching a route of communication data 有权
公开(公告)号：US11463378B2
公开(公告)日：2022-10-04
申请号：US16486538
申请日：2018-03-06
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Kazuyoshi Tsuji , Akinori Fujimura , Yuta Takemoto , Shinya Hirakuri , Yuichi Yamamoto
IPC分类号： H04L49/101 , H04J3/02 , H04B7/185
摘要： Provided is a digital switch including: a plurality of input-side memories, which are arranged in a one-to-one correspondence with a plurality of input ports, and are configured to accumulate time-division multiplexed data; a plurality of output-side memories, which are arranged in a one-to-one correspondence with a plurality of output ports, and are configured to accumulate time-division multiplexed data; and a switch matrix configured to receive, as input, the time-division multiplexed data read out in every cycle from each of the plurality of input-side memories, and execute routing for selecting, in accordance with a connection control signal received from outside, any one of the plurality of output-side memories such that the time-division multiplexed data read out in every cycle is output from each of the plurality of output ports without causing a difference in delay, to output the time-division multiplexed data.

9. 发明授权

US11425038B2 Packet header field extraction 有权
公开(公告)号：US11425038B2
公开(公告)日：2022-08-23
申请号：US16695044
申请日：2019-11-25
申请人： Barefoot Networks, Inc.
发明人： Patrick Bosshart
IPC分类号： H04L12/741 , H04L12/933 , H04L45/745 , H04L45/00 , H04L49/101 , H04L45/64 , H04L49/1546 , H04L69/22 , H04L45/74 , H04L45/42
摘要： Some embodiments provide a method for processing a packet for a pipeline of a hardware switch. The pipeline, in some embodiments, includes several different stages that match against packet header fields and modify packet header fields. The method receives a packet that includes a set of packet headers. The method then populates, for each packet header in the set of packet headers, (i) a first set of registers with packet header field values of the packet header that are used in the pipeline, and (ii) a second set of registers with packet header field values of the packet header that are not used in the pipeline.

10. 发明申请

US20220263774A1 HYPERSCALE SWITCH AND METHOD FOR DATA PACKET NETWORK SWITCHING 有权
公开(公告)号：US20220263774A1
公开(公告)日：2022-08-18
申请号：US17558162
申请日：2021-12-21
申请人： Brightways Corporation
发明人： Stephen DiFerdinando
IPC分类号： H04L49/101 , H04L45/00 , H04L45/745
摘要： A hyperscale switch is implemented with a plurality of semiconductor crossbar switching elements connected to one another according to a direct point-to-point electrical mesh interconnect for transceiving data packets between peripheral devices connected to the switch and utilizing a lookup table and network device addressing for reduced switching power.

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