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公开(公告)号：US20240305119A1
公开(公告)日：2024-09-12
申请号：US18584608
申请日：2024-02-22
发明人： John P. LESSO , Yanto SURYONO , Toru IDO , Claire MOTION
CPC分类号： H02J7/0048 , H02J7/005 , H03H17/0289 , H03H2017/009
摘要： Circuitry for processing an output of an electrochemical cell comprising a first electrode and a second electrode, the circuitry comprising: drive circuitry configured to apply a stimulus to the first electrode; measurement circuitry configured to obtain an output signal from the output of the electrochemical cell in response to the stimulus; processing circuitry configured to: apply the stimulus to a model of the electrochemical cell; obtain a modelled output signal from the model in response to the stimulus; determine an error in the output signal based on the output signal and the modelled output signal.
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公开(公告)号：US20240214735A1
公开(公告)日：2024-06-27
申请号：US18529364
申请日：2023-12-05
CPC分类号： H04R5/04 , H01R24/58 , H04R1/1041 , H04R3/12 , H04R29/002 , H04R29/004 , H04R2420/03 , H04R2420/05 , H04R2420/09
摘要： In an example there is provided circuitry for detecting a type of accessory connected to a first jack plug inserted into a first jack port. The circuitry is configured to determine whether an audio signal is present at the tip or the ring of the first jack plug. If there is an audio signal present at the tip or the ring of the first jack plug, then the circuitry is configured to determine that the type of accessory is a stereo line-in accessory connected to a 3-pole jack plug.
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公开(公告)号：US20240125854A1
公开(公告)日：2024-04-18
申请号：US18452100
申请日：2023-08-18
发明人： John P. LESSO , Scott P. WARRICK , Yanto SURYONO
IPC分类号： G01R31/36 , G01R31/367 , G01R31/382
CPC分类号： G01R31/3648 , G01R31/367 , G01R31/382
摘要： Circuitry for processing a response from an electrochemical cell to a stimulus, the circuitry comprising: sense circuitry configured to measure the response of the electrochemical cell to the stimulus; and processing circuitry configured to: sample the measured response to obtain a plurality of samples; and determine a first average signal based on a first number of samples of the plurality of samples; and output the first average signal, wherein the first number of samples in the first average signal is selected to minimise a first variance in the first number of samples.
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公开(公告)号：US20230061184A1
公开(公告)日：2023-03-02
申请号：US17463796
申请日：2021-09-01
发明人： John P. LESSO , Toru IDO
IPC分类号： G01N27/416 , G01N27/30
摘要： Circuitry for measuring a characteristic of an electrochemical cell, the circuitry comprising: a comparator having a first comparator input, a second comparator input and a comparator output; a feedback path between the comparator output and the second comparator input configured to provide a feedback signal to the second comparator input; and a loop filter configured to apply filtering to the feedback path to generate the feedback signal, wherein the loop filter comprises the electrochemical cell.
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公开(公告)号：US20220368336A1
公开(公告)日：2022-11-17
申请号：US17869344
申请日：2022-07-20
发明人： John P. LESSO
IPC分类号： H03M1/06
摘要： This application describes method and apparatus for data conversion. An analogue-to-digital converter circuit receives an analogue input signal (SIN) and outputs a digital output signal (SOUT) The circuit has a sampling capacitor, a controlled oscillator and a counter for generating a count value based on a number of oscillations in an output of the controlled oscillator in a count period during a read-out phase. The digital output signal is based on the count value. The converter circuit is operable in a sampling phase and the read-out phase. In the sampling phase, the sampling capacitor is coupled to an input node for the input signal, e.g. via switch. In the read-out phase, the sampling capacitor is coupled to the controlled oscillator, e.g. via switch, such that capacitor powers the first controlled oscillator and a frequency of oscillation in the output of the first controlled oscillator depends on the voltage of the first capacitor.
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公开(公告)号：US20220238121A1
公开(公告)日：2022-07-28
申请号：US17721698
申请日：2022-04-15
发明人： John P. LESSO
摘要： A speech signal is received by a device comprising first and second transducers, and the first transducer comprises a microphone. A method comprises performing a first voice biometric process on speech contained in a first part of a signal received by the microphone, in order to determine whether the speech is the speech of an enrolled user. A first correlation is determined, between said first part of the signal received by the microphone and a corresponding part of the signal received by the second transducer. A second correlation is determined, between said second part of the signal received by the microphone and the corresponding part of the signal received by the second transducer. It is then determined whether the first correlation and the second correlation satisfy a predetermined condition. If it is determined that the speech contained in the first part of the received signal is the speech of an enrolled user and that the first correlation and the second correlation satisfy the predetermined condition, the received speech signal is authenticated.
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公开(公告)号：US20240251565A1
公开(公告)日：2024-07-25
申请号：US18600957
申请日：2024-03-11
发明人： John P. LESSO , James T. DEAS
CPC分类号： H10B61/10 , G06N3/02 , G11C11/165 , H10N50/10
摘要： There is described a two-terminal multi-level memristor element synthesised from binary memristors, which is configured to implement a variable resistance based on unary or binary code words. There is further described a circuit such as a synapse circuit implemented using a multi-level memristor element.
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公开(公告)号：US20240155948A1
公开(公告)日：2024-05-09
申请号：US18410837
申请日：2024-01-11
发明人： John P. LESSO , Anthony S. DOY
CPC分类号： H10N30/802 , B06B1/0253 , B06B2201/55
摘要： The present disclosure relates to circuitry for driving a piezoelectric transducer to generate an audio output. The circuitry comprises pre-processor circuitry configured to process an input audio signal to generate a processed signal; driver circuitry coupled to the pre-processor circuitry and configured to generate a drive signal, based on the processed signal, for driving the piezoelectric transducer; and processor circuitry configured to determine a resonant frequency of the piezoelectric transducer. The pre-processor circuitry is configured to process the input audio signal based on the determined resonant frequency so as to generate the processed signal.
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公开(公告)号：US20240107231A1
公开(公告)日：2024-03-28
申请号：US18524887
申请日：2023-11-30
发明人： John P. LESSO
IPC分类号： H04R3/04
摘要： An apparatus, comprising: an audio input for receiving an input audio signal; an tuning input for receiving a tuning signal; a filter chain comprising a plurality of filters for filtering the audio signal to produce a filtered input audio signal, the filter chain comprising: a first filter module operating at a first sampling rate; and a second filter module operating at a second sampling rate greater than the first sampling rate, wherein a phase response of the first filter module is dependent on the tuning input and wherein a magnitude response of the first filter module is substantially independent of the tuning input.
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公开(公告)号：US20240074319A1
公开(公告)日：2024-02-29
申请号：US18486609
申请日：2023-10-13
发明人： John P. LESSO
CPC分类号： H10N30/804 , H10N30/40
摘要： The present disclosure relates to circuitry for driving a piezoelectric transducer. The circuitry may be implemented as an integrated circuit and comprises driver circuitry configured to supply a drive signal to cause the transducer to generate an output signal and active inductor circuitry configured to be coupled with the piezoelectric transducer. The active inductor circuitry may be tuneable to adjust a frequency characteristic of the output signal.
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