International Business Machines Corporation

Airbnb, Inc.

Daniel Ramirez

Timothy Clyde Buchholtz

Michael James Rohn

Morgan D Davis

George Russell Zettles, Iv

Sudipto Chakraborty

George Francis Paulik

Timothy Lindquist

Karl Robert Erickson

Jarrett Betke

Fang Lu

Nadiya Kochura

Janani Janakiraman

Layne A Berge

Susan Marie Cox

Lonny Lambrecht

Zelun Tie

David M Kauer

Paul Eric Dahlen

Kevin O'Connell

Raymond Alan Richetta

Kent Harold Haselhorst

Eric John Lukes

Pat Rosno

Henry Michael Newshutz

Sierra Spring

Kevin Daniel Escobar

George Zettles Iv

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.

Spur and image suppression in a radio frequency signal generator

A cable connector for counting a number of plug-in events and preventing further plug in attempts after a threshold number of plug-in events have occurred. An inner sleeve is located inside an outer sleeve, and is designed to move relative to the outer sleeve. The inner sleeve further includes a tab on an outer surface of the inner sleeve. A gear wheel is located inside the outer sleeve and perpendicular to the inner sleeve and has a number of gear teeth. A toggle plug counter rotates the gear wheel one tooth in response to a plug-in action of the cable counter. When the gear wheel rotates to a point where the tab aligns with a notch in the gear wheel an inner spring at the opposite end of the inner sleeve causes the inner sleeve to move through the gear wheel such that further plugging action becomes difficult.

Plug count limiter for cables

Method, apparatus and computer program product for spur detection in a sampled waveform in a mixed analog/digital system using the magnitude of the frequency response comprising acquiring a sample waveform including a set of discrete uniformly spaced samples from a target system, wherein the sample waveform is a time domain vector; applying FFT transforming the time domain vector into the frequency domain; analyzing the frequency domain response including calculating the magnitude response; and determining whether the sample waveform has spurs including comparing the magnitude response to an average noise floor threshold including determining that the magnitude response having an average noise floor value above the average noise floor threshold has one or more spurs and determining that the magnitude response having an average noise floor value below the average noise floor threshold has no spurs, wherein a spur indicates unaligned data having a delayed bit flip.

Spur detection in a sampled waveform in a mixed analog/digital system using the magnitude of the frequency response

One or more systems, devices, and/or methods provided herein relate to a process for in-process radio frequency (RF) signal quality analysis and amplitude adjustment of one or more RF devices. In one or more embodiments, the RF device can comprise a portion of a quantum computing system, such as of readout electronics thereof, and thus amplitude adjustment can be at a waveform generator that generates pulses to affect one or more qubits of a quantum logic circuit of the quantum computing system. Generally, an electronic device can comprise an RF tap connected to an RF signal component of a first RF signal chain, and an analysis component connected to the RF tap, the analysis component configured to convert an RF signal from the RF signal component and to compare a conversion result thereof to an expected power output that is based on historical data for a second RF signal chain.

Radio frequency signal integrity verification

Systems, devices, computer-implemented methods, and/or computer program products that facilitate low power, wideband multitone generation. In one example, a multitone generator device can comprise a controller operatively coupled to first and second digital-to-analog converters (DACs). The controller can apply different delays of a sampling signal to the first and second DACs to facilitate sideband suppression of signals output by the first and second DACs. One aspect of such a multitone generator device is that the multitone generator device can facilitate low power, wideband multitone generation.

Low power wideband multitone generator

A clock driver circuit for low powered clock driving may include: a multiple phase divider; a buffer supplying at least one of multiple phases to the multiple phase divider at a center frequency that is an integer multiple of an input frequency; and wherein the multiple phase divider and the buffer share a same current from a supply rail.

Low powered clock driving

An apparatus includes a sampling circuit, a sense circuit, and a tuning circuit. The sampling circuit samples an input signal according to a sampling clock signal to produce a sampled signal. The sense circuit determines a scaling factor based on a distortion in the sampled signal caused by the sampling clock signal. The tuning circuit generates an offset signal based on the sampling clock signal and the scaling factor. The offset signal reduces the distortion in the sampled signal caused by the sampling clock signal.

Distortion reduction circuit

Authentication includes receiving an indication of physical possession of a payment card by a merchant and receiving a purchase request for an authorization of an exchange from the payment account of the cardholder to the merchant. Authentication includes assigning a randomized transaction identifier to the request for the authorization of the exchange. The method also includes transmitting the request for the authorization of the exchange from the payment account of the cardholder to the merchant and receiving the assigned randomized transaction identifier and a randomized authentication identifier associated with the randomized transaction identifier from a payment association, the payment association determining whether the request for the authorization of the exchange is valid. Authentication includes transmitting a copy of the randomized authentication identifier to the mobile device and receiving validation that the transmitted copy of the randomized authentication identifier from the mobile device matches the randomized authentication identifier.

Multi-point authentication for payment transactions

Authentication for payment transaction includes receiving, by a point-of-sale (POS) terminal, an indication that a payment account of a cardholder is associated with a mobile device and receiving a second indication of physical possession of a payment card by a merchant. The authentication includes receiving a purchase request for an authorization of exchange from the payment account of the cardholder to the merchant and assigning a transaction identifier to the request for the authorization of the exchange. The authentication includes transmitting the request for authorization of the exchange from the cardholder payment account to the merchant and the transaction identifier. The authentication includes receiving an indication that an authentication identifier is associated with the transaction identifier. The authentication includes receiving a copy of the authentication identifier, facilitated by the cardholder. The authentication includes receiving validation that the copy of the authentication identifier matches the authentication identifier.

A method, computer program product, and system for enhancing dynamically enhancing query results. A processor(s) monitors computing activities performed by a user, via a client. The processor(s) analyzes the computing activities to identify data comprising a user profile: elements relevant to the user and relationships. The processor(s) generates a knowledge graph with the data. The processor(s) obtains input from the user. The processor(s) executes one or more queries on one or more data sources to retrieve standard search results. The processor(s) analyzes the input and the search results to identify segments of the input and the search results relevant to items comprising the data in the graph and defines links between the items, the data, and the segments. The processor(s) generates contextual search results that include the standard search results, a portion of the items, and a portion of the links and transmits the contextual search results, to the client.

Dynamically enhancing query results

A method and apparatus to adjust a differential transmitter output impedance is disclosed. Output voltage is sampled and averaged to mitigate noise and leakage. Averaged uplevel and downlevel voltages are used to select a number of pullup devices and a number of pulldown devices to control the differential transmitter output impedance to match a distal termination resistance or a transmission line impedance.

Matching transmitter impedance to receiver termination using an average of transmitter output voltage samples

A tool is provided for document or design code completion. The tool includes a storage element in which common and user-specific unfinished work indicators are stored in first and second databases, respectively, a search element and a processor. The search element is disposed to identify unfinished work in documents by searching for matches of first text within the documents with second text of the common and user-specific work indicators in the first and second databases. The processor is configured to create a third database including the second text and pertinent sections of the documents. The pertinent sections are respectively associated with the second text and verifiably marked as unfinished by natural language processing of the first and second text by the processor. The processor is further configured to update the first and second databases based on results of the natural language processing.

Determining and assisting with document or design code completeness

Authentication includes determining that a cardholder payment account is associated with a mobile device. Authentication includes receiving an indication of physical possession of a payment card. Authentication includes receiving a purchase request for an authorization of an exchange of funds from the cardholder account to the merchant. Authentication includes receiving a randomized transaction identifier to the request for the authorization of the exchange. Authentication includes transmitting to the mobile device, information associated with the request. Authentication includes transmitting to the mobile device, a request for confirmation of the authorization from the cardholder from the account of the cardholder to the merchant. Authentication includes receiving an indication, facilitated by the cardholder, that the exchange is authorized. Authentication includes authorizing the exchange of from the payment account of the cardholder to the merchant.

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Rochester, MN, United States of America

Daniel Ramirez