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公开(公告)号：US12277971B2
公开(公告)日：2025-04-15
申请号：US18420978
申请日：2024-01-24
Applicant: Hewlett Packard Enterprise Development LP
Abstract: The disclosure generally provides for a method of solving a K-SAT problem. The method comprises programming one or more clauses of a Boolean expression for a K-SAT problem written in negated disjunctive normal form (DNF) to a ternary-CAM (TCAM) array comprising columns and rows of TCAM cells, applying an interpretation comprising one or more binary variables expected to solve the Boolean expression as an input along the columns to the TCAM array, returning a binary value for each clause and updating one or more variables within the interpretation if at least one clause is violated.
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公开(公告)号：US20250021809A1
公开(公告)日：2025-01-16
申请号：US18487452
申请日：2023-10-16
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： YIWEI PENG , Xian Xiao , Yuan Yuan , Stanley Cheung , Sean Hooten , Thomas Van Vaerenbergh , Marco Fiorentino , Zhihong Huang
IPC: G06N3/067
Abstract: Systems and methods are provided for devices and methods for implementing an optical neural network (ONN) by leveraging resonator structures, such on micro-ring resonators (MRRs). Examples include unit cells configured to perform a linear transformation on optical signals. Each unit cell comprises a plurality of signal mixing components optically coupled to between adjacent waveguides, where each signal mixing component corresponds to a distinct wavelength and is configured to mix optical signals on the adjacent waveguides at the distinct wavelength. Each unit cell also includes a plurality of phase tuning components each corresponding to a distinct wavelength and configured to adjust a phase of a mixed optical signal at the distinct wavelength.
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公开(公告)号：US20240402572A1
公开(公告)日：2024-12-05
申请号：US18328555
申请日：2023-06-02
Applicant: Hewlett Packard Enterprise Development LP
Inventor： XIAN XIAO , Thomas Van Vaerenbergh , Raymond G. Beausoleil
IPC: G02F3/02
Abstract: Examples of the present technology provide “tensorized” integrated coherent Ising machines that improve scalability by leveraging a tensorized optical coupling matrix comprising layers of multi-wavelength photonic tensor-train (TT) cores cascaded together via passive optical cross-connects. A multi-wavelength photonic TT core may comprise a Mach Zehnder interferometer (MZI) mesh (i.e., a lattice/array of interconnected MZIs) that modulates the phase and/or amplitude of optical signals. Tensorized integrated CIMs of the present technology can achieve further scalability optimizations by implementing bistable Ising nodes via one or more multi-wavelength Ising node collections. A multi-wavelength Ising node collection may comprise a bistable Ising nodes implemented on a common MZI, where each bistable Ising node of the multi-wavelength Ising node collection is associated with a separate wavelength of light.
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公开(公告)号：US11520107B2
公开(公告)日：2022-12-06
申请号：US17235830
申请日：2021-04-20
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Peng Sun , Thomas Van Vaerenbergh
Abstract: An optical grating coupler defining an axis and configured to couple light between a planar waveguide and an optical fiber, including first and second entry surfaces and a plurality of scattering regions symmetric to the axis and arranged such scattering strength presented to incoming light by the plurality of scattering regions changes from weak to strong along a beam path of the incoming light to match a Gaussian mode profile of the optical fiber.
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公开(公告)号：US20220069829A1
公开(公告)日：2022-03-03
申请号：US17006490
申请日：2020-08-28
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Mir Ashkan Seyedi , Thomas Van Vaerenbergh , Antoine Descos
Abstract: One embodiment provides an optical encoder. The optical encoder includes an optical comb source to generate a multi-wavelength optical signal; a number of optical filters sequentially coupled to the optical comb source, with a respective optical filter being tunable to pass or block a particular wavelength of the multi-wavelength optical signal based on a corresponding bit value of a multi-bit search word; and a common output for the optical filters to output the filtered multi-wavelength optical signal, which encodes the multi-bit search word and can be used as an optical search signal for searching an optical content-addressable memory (CAM).
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Patent Agency Ranking
6.发明申请公开(公告)号：US20200242447A1
公开(公告)日：2020-07-30
申请号：US16260898
申请日：2019-01-29
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Suhas Kumar , Thomas Van Vaerenbergh , John Paul Strachan
Abstract: Recurrent neural networks, and methods therefor, are provided with diagonal and programming fluctuation to find energy global minima. The method may include storing the matrix of weights in memory cells of a crossbar array of a recursive neural network prior to operation of the recursive neural network; altering the weights according to a probability distribution; setting the weights to non-zero values in at least one of the memory cells in a diagonal of the memory cells in the crossbar array; and operating the recursive neural network.
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公开(公告)号：US20240170064A1
公开(公告)日：2024-05-23
申请号：US18420978
申请日：2024-01-24
Applicant: Hewlett Packard Enterprise Development LP
CPC classification number: G11C15/046 , H03K19/20
Abstract: The disclosure generally provides for a method of solving a K-SAT problem. The method comprises programming one or more clauses of a Boolean expression for a K-SAT problem written in negated disjunctive normal form (DNF) to a ternary-CAM (TCAM) array comprising columns and rows of TCAM cells, applying an interpretation comprising one or more binary variables expected to solve the Boolean expression as an input along the columns to the TCAM array, returning a binary value for each clause and updating one or more variables within the interpretation if at least one clause is violated.
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公开(公告)号：US20230410902A1
公开(公告)日：2023-12-21
申请号：US17841532
申请日：2022-06-15
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
CPC classification number: G11C15/046 , H03K19/20
Abstract: The disclosure generally provides for a method of solving a K-SAT problem. The method comprises programming one or more clauses of a Boolean expression for a K-SAT problem written in negated disjunctive normal form (DNF) to a ternary-CAM (TCAM) array comprising columns and rows of TCAM cells, applying an interpretation comprising one or more binary variables expected to solve the Boolean expression as an input along the columns to the TCAM array, returning a binary value for each clause and updating one or more variables within the interpretation if at least one clause is violated.
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9.发明授权公开(公告)号：US11599771B2
公开(公告)日：2023-03-07
申请号：US16260898
申请日：2019-01-29
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Suhas Kumar , Thomas Van Vaerenbergh , John Paul Strachan
Abstract: Recurrent neural networks, and methods therefor, are provided with diagonal and programming fluctuation to find energy global minima. The method may include storing the matrix of weights in memory cells of a crossbar array of a recursive neural network prior to operation of the recursive neural network; altering the weights according to a probability distribution; setting the weights to non-zero values in at least one of the memory cells in a diagonal of the memory cells in the crossbar array; and operating the recursive neural network.
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公开(公告)号：US11469764B2
公开(公告)日：2022-10-11
申请号：US17006490
申请日：2020-08-28
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Mir Ashkan Seyedi , Thomas Van Vaerenbergh , Antoine Descos
Abstract: One embodiment provides an optical encoder. The optical encoder includes an optical comb source to generate a multi-wavelength optical signal; a number of optical filters sequentially coupled to the optical comb source, with a respective optical filter being tunable to pass or block a particular wavelength of the multi-wavelength optical signal based on a corresponding bit value of a multi-bit search word; and a common output for the optical filters to output the filtered multi-wavelength optical signal, which encodes the multi-bit search word and can be used as an optical search signal for searching an optical content-addressable memory (CAM).
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