Wavelength modulation for improved optical link bit error rate

    公开(公告)号:US11552707B2

    公开(公告)日:2023-01-10

    申请号:US17302681

    申请日:2021-05-10

    Abstract: An optical transceiver module includes an optical transceiver and a controller. The optical transceiver has a ring filter configured to transmit optical signals from or receive optical signals for the optical transceiver module. The controller is configured to: detect a carrier frequency at the optical transceiver; detect a data signal frequency of data at the optical transceiver; determine a bit error rate of the data; and in response to determining that the bit error rate of the data is greater than a threshold, periodically vary a central wavelength of the ring filter at a frequency at least three orders slower than the data signal frequency.

    Managing power consumption of a network

    公开(公告)号:US11546856B2

    公开(公告)日:2023-01-03

    申请号:US17071585

    申请日:2020-10-15

    Abstract: Examples provided herein describe a method for managing power consumption of a network. For example, a network device may monitor a set of network area zones of a network coverage area, where each network area zone is associated with a set of edge devices. A first occupancy state may be determined for a first network area zone of the set of network area zones based on usage of a first set of edge devices of the first network area zone. Based on the determined first occupancy state, a first power consumption policy for the first network area zone may be determined. Responsive to determining the first power consumption policy, the determined first power consumption policy may be applied to the first set of edge devices in the first network area zone at least edge changing a power consumption mode of a first edge device in the first set of edge devices.

    Continuous multifactor device authentication

    公开(公告)号:US11546328B2

    公开(公告)日:2023-01-03

    申请号:US16255937

    申请日:2019-01-24

    Abstract: A device is authenticated for communication over a network based on a sensor data signature and a traffic pattern signature. The sensor data signature and the traffic pattern signature identify the device. A determination is made whether the sensor data signature corresponds to one of a plurality of recognized sensor data signatures. A determination is also made whether the traffic pattern signature of the device corresponds to one of a plurality of recognized traffic pattern signatures. The device is authenticated for communication over the network responsive to determining that the sensor data signature corresponds to one of the plurality of recognized sensor data signatures and the traffic pattern signature corresponds to one of the plurality of recognized traffic pattern signatures.

    Systems and methods for neural network training and deployment for hardware accelerators

    公开(公告)号:US11544540B2

    公开(公告)日:2023-01-03

    申请号:US16409729

    申请日:2019-05-10

    Abstract: Systems and methods are provided for implementing hardware optimization for a hardware accelerator. The hardware accelerator emulates a neural network. Training of the neural network integrates a regularized pruning technique to systematically reduce a number of weights. A crossbar array included in hardware accelerator can be programmed to calculate node values of the pruned neural network to selectively reduce the number of weight column lines in the crossbar array. During deployment, the hardware accelerator can be programmed to power off periphery circuit elements that correspond to a pruned weight column line to optimize the hardware accelerator for power. Alternatively, before deployment, the hardware accelerator can be optimized for area by including a finite number of weight column line. Then, regularized pruning of the neural network selectively reduces the number of weights for consistency with the finite number of weight columns lines in the hardware accelerator.

    METHOD AND SYSTEM FOR DYNAMIC TOPOLOGY-AWARE SPACE ALLOCATION IN A DISTRIBUTED SYSTEM

    公开(公告)号:US20220413741A1

    公开(公告)日:2022-12-29

    申请号:US17359080

    申请日:2021-06-25

    Abstract: A system divides non-volatile memory of a plurality of storage devices into physical extents which comprises chunks. The system allocates slabs associated with the storage devices, wherein a respective slab comprises extents from different storage devices and further comprises stripes. A stripe comprises a chunk from each extent of the respective slab. The system updates, in a first data structure, an entry which indicates: a slab number for the respective allocated slab; and a storage device identifier and an extent number for each extent in the respective allocated slab. Responsive to receiving a write request, the system obtains a first stripe from a pre-allocated list which includes the allocated slabs. The system searches, based on stripe information associated with the first stripe, the first data structure to obtain a physical location in a storage device to which to issue the write request.

    Swivel-capable, low-pressure-drop hose barb fittings

    公开(公告)号:US11536402B2

    公开(公告)日:2022-12-27

    申请号:US16579254

    申请日:2019-09-23

    Abstract: Hose barb fittings and apparatuses described herein provide increased fluid-flow rates for cooling loops used for thermal control in computer system. A hose barb fitting comprises a fluid-flow passage that extends through the hose barb fitting from a first opening to a second opening. The ratio of the cross-sectional area of the fluid-flow passage to the cross-sectional area of the hose barb fitting is between 0.4 and 0.7, inclusive. When the hose barb fitting is fully seated within a housing structure, a specialized gasket acts as both a radial seal and a face seal. Also, a flange extending from the housing structure engages with a flange extending from the hose barb fitting to prevent the hose barb fitting from being unseated.

    METHOD AND SYSTEM FOR PERSISTENT PARTITIONABLE DISTRIBUTED MAP USING SPARSE ARRAYS AND SPARSE ORDERED TWO-BIT BITMAPS IN SHARED MEMORY

    公开(公告)号:US20220405006A1

    公开(公告)日:2022-12-22

    申请号:US17355000

    申请日:2021-06-22

    Abstract: One aspect facilitates a global map in a distributed system. The system generates a first data structure which comprises key-value pairs, wherein, in a respective key-value pair, the respective key is an integer and the respective value comprises a pointer to a sparse array which includes a bitmap (such as an ordered two-bit bitmap). The system stores the first data structure as a first partition of the global map. The system searches, based on a pattern, the first data structure to obtain a first value. If the first value comprises a two-bit bitmap, the system converts, based on the pattern, the first value to a two-dimensional bitmap, and performs a function on the first value to obtain a first result. The system uses the first value or the first result as metadata to execute a read or write operation in a filesystem associated with the distributed system.

    Self-healing dot-product engine
    380.
    发明授权

    公开(公告)号:US11532356B2

    公开(公告)日:2022-12-20

    申请号:US17223435

    申请日:2021-04-06

    Abstract: A DPE memristor crossbar array system includes a plurality of partitioned memristor crossbar arrays. Each of the plurality of partitioned memristor crossbar arrays includes a primary memristor crossbar array and a redundant memristor crossbar array. The redundant memristor crossbar array includes values that are mathematically related to values within the primary memristor crossbar array. In addition, the plurality of partitioned memristor crossbar arrays includes a block of shared analog circuits coupled to the plurality of partitioned memristor crossbar arrays. The block of shared analog circuits is to determine a dot product value of voltage values generated by at least one partitioned memristor crossbar array of the plurality of partitioned memristor crossbar arrays.

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