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公开(公告)号：US11409940B2
公开(公告)日：2022-08-09
申请号：US17124484
申请日：2020-12-16
Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
Inventor： Rajiv Joshi , Sudipto Chakraborty , Joseph Allen Glick , Pat Rosno
IPC: G06F30/398 , G06N10/00 , B82Y10/00
Abstract: A method of validating support circuits of a qubit array includes generating virtual control waveforms from one or more abstracted support circuits of the qubit array. An abstracted pulse sequence is created from the virtual control waveforms. The abstracted pulse sequence is converted into waveforms. The waveforms are sent to individual qubits of the qubit array. Output data from the qubit array is captured in response to the sent waveforms.
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公开(公告)号：US11439015B2
公开(公告)日：2022-09-06
申请号：US16598126
申请日：2019-10-10
Applicant: International Business Machines Corporation
Inventor： Layne A. Berge , Paul E. Dahlen , Pat Rosno , Timothy Schmerbeck , Kyle Schoneck
Abstract: Surface mount device (SMD) placement to control a signal path in a printed circuit board (PCB), including: adding, to a PCB, a plurality of signal path segments, each signal path segment of the plurality of signal path segments ending at corresponding pad of a plurality of pads, wherein a first pad of the plurality of pads is couplable to a second pad of the plurality of pads to create a first signal path and is couplable to a third pad of the plurality of pads to create a second signal path; and coupling, via a discrete SMD, the first pad and the second pad to create the first signal path comprising a first signal path segment of the plurality of signal path segments and a second signal path segment of the plurality of signal path segments.
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Patent Agency Ranking
公开(公告)号：US20220188500A1
公开(公告)日：2022-06-16
申请号：US17124484
申请日：2020-12-16
Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
Inventor： Rajiv Joshi , Sudipto Chakraborty , Joseph Allen Glick , Pat Rosno
IPC: G06F30/398 , G06N10/00
Abstract: A method of validating support circuits of a qubit array includes generating virtual control waveforms from one or more abstracted support circuits of the qubit array. An abstracted pulse sequence is created from the virtual control waveforms. The abstracted pulse sequence is converted into waveforms. The waveforms are sent to individual qubits of the qubit array. Output data from the qubit array is captured in response to the sent waveforms.
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公开(公告)号：US12155157B2
公开(公告)日：2024-11-26
申请号：US17708632
申请日：2022-03-30
Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
Inventor： Phillip V. Mann , Brandon R. Christenson , Ray Clement Laning , George Russell Zettles, IV , Pat Rosno , Layne A. Berge
IPC: H01R13/6595 , H01R12/70 , H01R13/207
Abstract: Systems for optimizing mounting points for coaxial RF connectors, including a printed circuit board (PCB) comprising a coaxial radio frequency (RF) connector; a faceplate comprising an opening adapted to receive the coaxial RF connector; and a bushing positioned within the opening, wherein the coaxial RF connector is positioned within the bushing.
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公开(公告)号：US12047048B2
公开(公告)日：2024-07-23
申请号：US16952723
申请日：2020-11-19
Applicant: International Business Machines Corporation
Inventor： Sudipto Chakraborty , Raymond Richetta , Pat Rosno
CPC classification number: H03H11/0422 , B82Y10/00 , G06N10/00 , H03M1/66
Abstract: A filter stage system, includes a continuous time baseband filter comprising a feedback loop that employs at least one first impedance node and at least one second impedance node, wherein the at least one first impedance node has a higher impedance than the at least one second impedance node, and wherein the at least one first impedance node provides a dominant pole and the at least one second impedance node provides a non-dominant pole, and wherein the continuous time baseband filter generates a filtered current, and a mirroring component mirrors the filtered current to an output.
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公开(公告)号：US20240162921A1
公开(公告)日：2024-05-16
申请号：US17987077
申请日：2022-11-15
Applicant: International Business Machines Corporation
Inventor： Sudipto Chakraborty , Pat Rosno , John Francis Bulzacchelli , Daniel Ramirez
CPC classification number: H04B1/0028 , H04B1/0483 , H04B1/12 , H04B17/11
Abstract: A device comprises a radio frequency (RF) signal generator and a calibration system. The RF signal generator is configured to upconvert a baseband signal to an RF signal using first and second LO signals. The RF signal generator comprises first and second signal paths to process first and second differential signals. The calibration system comprises calibration control circuitry and actuator circuitry. In response to digital control signals generated by the calibration control circuitry, the actuator circuitry is configured to: inject currents into the first and second signal paths to adjust offsets of the first and second differential signals, and to balance amplitudes of the first and second differential signals; and adjust at least one of respective duty cycles of the first and second local oscillator signals, and a phase difference between the first and second local oscillator signals.
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公开(公告)号：US20220158626A1
公开(公告)日：2022-05-19
申请号：US16952723
申请日：2020-11-19
Applicant: International Business Machines Corporation
Inventor： Sudipto Chakraborty , RAYMOND RICHETTA , Pat Rosno
Abstract: A filter stage system, includes a continuous time baseband filter comprising a feedback loop that employs at least one first impedance node and at least one second impedance node, wherein the at least one first impedance node has a higher impedance than the at least one second impedance node, and wherein the at least one first impedance node provides a dominant pole and the at least one second impedance node provides a non-dominant pole, and wherein the continuous time baseband filter generates a filtered current, and a mirroring component mirrors the filtered current to an output.
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