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公开(公告)号：US20180329016A1
公开(公告)日：2018-11-15
申请号：US15772856
申请日：2016-10-21
Inventor： Arnaud CASAGRANDE
CPC classification number: G01S3/043 , G01S3/04 , G01S3/48 , G01S5/0226 , G01S5/04
Abstract: A method for location of a beacon includes: executing R sequences, wherein R is a whole number equal to or greater than 2, each including reception by a first antenna network and a second antenna network of a signal originating from the beacon, wherein the signals of the R sequences are of different wavelengths; calculating a first estimation function for angles of arrival of the signal on the first antenna network and of a second estimation function for angles of arrival of the signal on the second antenna network; and executing a mutual correlation of the R first estimation functions and the R second estimation functions, for the respective determination of a first angle between the beacon and the first network, and of a second angle between the beacon and the second network.
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公开(公告)号：US20150126145A1
公开(公告)日：2015-05-07
申请号：US14530296
申请日：2014-10-31
Inventor： Arnaud CASAGRANDE , Carlos VELASQUEZ , Emil ZELLWEGER
CPC classification number: H04B1/1027 , H04B15/06 , H04B17/21 , H04B17/29 , H04B2001/1054
Abstract: The signal receiver has means to suppress at least one higher harmonic component from a MEMS or crystal oscillator having a reference resonator in filtered intermediate signals of a signal receiver. The signal receiver comprises an antenna for receiving electromagnetic signals, a low noise amplifier for amplifying signals received by the antenna, one MEMS or crystal oscillator comprising a reference resonator to generate an oscillating signal with a predefined duty-cycle, a mixer for mixing the amplified and received signals with the oscillating signal to generate intermediate signals, a band-pass filter to filter the intermediate signals, and a duty-cycle controller coupled to the MEMS or crystal oscillator and coupled to the output of the band-pass filter to analyze the spectrum of the filtered intermediate signals and to modify the duty-cycle of the oscillating signal in response to the spectrum analysis of the filtered intermediate signals.
Abstract translation: 信号接收机具有在信号接收机的经滤波的中间信号中抑制来自具有参考谐振器的MEMS或晶体振荡器的至少一个高次谐波分量的装置。 信号接收机包括用于接收电磁信号的天线，用于放大由天线接收的信号的低噪声放大器，包括参考谐振器的一个MEMS或晶体振荡器，以产生具有预定占空比的振荡信号;混频器，用于混合放大 并且用振荡信号接收信号以产生中间信号，滤波中间信号的带通滤波器和耦合到MEMS或晶体振荡器并耦合到带通滤波器的输出的占空比控制器，以分析 频谱，并响应于滤波的中间信号的频谱分析来修改振荡信号的占空比。
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公开(公告)号：US20150124512A1
公开(公告)日：2015-05-07
申请号：US14533583
申请日：2014-11-05
Inventor： Arnaud CASAGRANDE
IPC: G11C17/04
Abstract: The memory cell of a memory device comprises a MOS capacitor having a n-type gate and a n-type well, a first switch to temporarily apply a breakthrough voltage across the n-type gate and the n-type well to generate a permanent conductive breakthrough structure between the n-type gate and the n-type well.
Abstract translation: 存储器件的存储单元包括具有n型栅极和n型阱的MOS电容器，用于临时施加穿过n型栅极和n型阱的穿透电压的第一开关，以产生永久导电 n型栅极和n型阱之间的突破结构。
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公开(公告)号：US20200186260A1
公开(公告)日：2020-06-11
申请号：US16658224
申请日：2019-10-21
Inventor： Arnaud CASAGRANDE , Thierry SCORDILIS , Luca DE ROSA , Jean GORISSE , Jean-Luc AREND
Abstract: A transmitter-receiver includes an electronic chip a mixer for mixing the frequency of a received radio frequency signal with that of an oscillating signal supplied by a first frequency synthesizer in, a switch having two inputs connected to an output of the mixer and to an auxiliary input terminal, a filter and gain stage connected to the output of the switch, and a modulator-demodulator connected to the output of the filter and gain stage. The first frequency synthesizer is connected between the output of the modulator-demodulator and radio frequency input and output terminal, and configured to supply a frequency-modulated signal to the radio frequency input and output terminal. The electronic chip further includes a second frequency synthesizer connected between the output of the modulator-demodulator and an auxiliary output terminal, and configured to synthesize a modulated low-frequency signal supplied by the auxiliary output terminal, whereby the center value of the low frequency is equal to the value of the intermediate frequency.
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5.发明申请公开(公告)号：US20190363703A1
公开(公告)日：2019-11-28
申请号：US16390095
申请日：2019-04-22
Inventor： Arnaud CASAGRANDE
Abstract: A reference oscillator for a transmitter and/or a receiver of electromagnetic signals. The reference oscillator is suitable for generating a modified reference signal alternating ON times and OFF times with a predefined duty cycle from a signal supplied by a reference resonator. The reference oscillator also includes an adjustment circuit suitable for adjusting the duty cycle of the modified reference signal according to at least one adjustment parameter dependent on a rank of at least one harmonic component of the modified reference signal so as to minimize at least one harmonic component of the modified reference signal. A frequency synthesizer and a radio frequency signal receiver can include such a reference oscillator.
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Patent Agency Ranking
公开(公告)号：US20230102272A1
公开(公告)日：2023-03-30
申请号：US17841131
申请日：2022-06-15
Inventor： Arnaud CASAGRANDE , Jean-Luc Arend
Abstract: A method for detecting an RF signal detected by a super-regenerative receiver (1). The receiver includes a reference oscillator (4) for generating an oscillation in the oscillator, a bias current generator (7) for supplying a bias current, an oscillation detector (6) connected between an output (coilp) of the oscillator and the bias current generator for controlling when an RF signal is received by the receiver, and an impedance matching unit (3) disposed between the input of the receiver and the reference oscillator (4). Following activation of a start control signal, detection of the oscillation of the reference oscillator is performed, and once the reference oscillator oscillates above a critical increasing bias current value, the oscillation detector orders the bias current generator to cut off the bias current and thus stop the oscillation of the reference oscillator to reduce the overall electricity consumption during an RF signal detection phase.
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7.发明申请公开(公告)号：US20180095172A1
公开(公告)日：2018-04-05
申请号：US15710238
申请日：2017-09-20
Inventor： Arnaud CASAGRANDE , Carlos VELASQUEZ , Philippe DUC
Abstract: For the process for determining a distance, there is provided a succession of coded signals at high frequency transmitted between a base station and a wearable object. A preparation of a response signal is conducted in the wearable object on reception of the first synchronisation signal after activation of the wearable object. A transmission of successive coded signals at high frequency from the wearable object is conducted for the station, of which the last response signal is scrambled by a modulation of data on the last signal received at a high transfer rate from the station. An analysis is conducted in a processing unit of the base station after reception of the signals from the wearable object to accurately determine the distance separating the base station from the recognised wearable object.
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8.发明申请公开(公告)号：US20170324442A1
公开(公告)日：2017-11-09
申请号：US15486720
申请日：2017-04-13
Inventor： Arnaud CASAGRANDE
IPC: H04B1/7073 , H04L7/04 , H04L27/156 , H04B1/69
CPC classification number: H04B1/7073 , G01S11/08 , H04B2001/6912 , H04L7/042 , H04L27/103 , H04L27/1566
Abstract: The communication process for high-sensitivity and synchronous demodulation signals between a transmitter (2) and a receiver (3) comprises a first synchronisation phase followed by a modulation and demodulation phase of the data. To achieve this, the transmitter transmits a pseudo-periodic chirp signal to the receiver, where a frequency conversion of the chirp signal is performed in a mixer (33) by an oscillating signal (So) at constant frequency of a local oscillator (34) to supply an intermediate signal, which is filtered and sampled for a logic unit (37). An assembly (38) of m pairs DFT blocks phase-shifted in relation to one another and operating in parallel is provided in the logic unit. A processing unit (39) receives the result of the pairs of the assembly to determine frequency and phase errors between the transmitter and the receiver on the basis of two peaks detected by one of the pairs above a threshold to synchronise the receiver.
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9.发明公开公开(公告)号：US20240275333A1
公开(公告)日：2024-08-15
申请号：US18407528
申请日：2024-01-09
Inventor： Arnaud CASAGRANDE , Jean-Luc AREND
CPC classification number: H03B5/06 , H03B5/32 , H03K3/014 , H03K3/0307 , H03B2200/0094
Abstract: A method for operating a fast start-up oscillator system, which includes a reference oscillator and a quartz oscillator connected to an electronic oscillator circuit, which is provided to supply a master clock signal to a start-up controller configured to perform a fast start-up procedure of the quartz oscillator via the reference oscillator. The start-up controller includes a calculation unit and a memory unit for storing data in connection with the reference oscillator for starting the quartz oscillator. The method includes parameterising the calculation unit for starting the quartz oscillator, generating excitation bursts, determining a phase deviation in different successive periods between the oscillation of the reference oscillator and the oscillation of the quartz oscillator, calculating a frequency error in the calculation unit, and correcting the frequency of the reference oscillator to the frequency of the quartz oscillator.
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公开(公告)号：US20230099987A1
公开(公告)日：2023-03-30
申请号：US17855020
申请日：2022-06-30
Inventor： Jean-Luc Arend , Arnaud CASAGRANDE
Abstract: A method is provided for enhancing the detection of the start time of a reference oscillator (4) of a super-regenerative receiver (1), which includes the reference oscillator, a bias current generator (7), an oscillation detector (6), and an impedance matching unit (3). Following the supply of the bias current (i_vco) after receiving the activation control signal (Sosc), an oscillation detection is performed by the oscillation detector (6), and once oscillation is detected, an additional amplification current (iboost) dependent on the envelope of the detected oscillation, of an amplification current generation circuit is supplied to the reference oscillator (4) in addition to the bias current to amplify the oscillation signal to be above a critical oscillation start threshold so as to precisely define the start time of the oscillator, and enable the oscillation detector (6) to order the stoppage of oscillation of the reference oscillator (4).
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