公开(公告)号：US20240275333A1

公开(公告)日：2024-08-15

申请号：US18407528

申请日：2024-01-09

Applicant: The Swatch Group Research and Development Ltd

Inventor： Arnaud CASAGRANDE ,  Jean-Luc AREND

IPC: H03B5/06 ,  H03B5/32 ,  H03K3/014 ,  H03K3/03

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.

公开(公告)号：US20220077822A1

公开(公告)日：2022-03-10

申请号：US17326434

申请日：2021-05-21

Applicant: The Swatch Group Research and Development Ltd

Inventor： Arnaud CASAGRANDE ,  Jean-Luc AREND

IPC: H03B5/32 ,  H03B5/06

Abstract: A crystal oscillator and a startup method for initiating operation of a crystal oscillator, the crystal oscillator includes an oscillator structure including a crystal resonator and an electronic oscillator circuit connected to the crystal resonator, the oscillator structure having a first terminal and a second terminal, a startup controller operable to initiate an oscillation in the oscillator structure by exciting the oscillator structure with a sequence of excitation signals derivable from a clock signal and when triggered by a timing signal, the sequence of excitation signals includes at least a first excitation signal and a second excitation signal, a comparator including a first and a second input terminal and an output terminal, the first input terminal being connected to the first terminal and wherein the second input terminal is connected to the second terminal.

公开(公告)号：US20200186260A1

公开(公告)日：2020-06-11

申请号：US16658224

申请日：2019-10-21

Applicant: The Swatch Group Research and Development Ltd.

Inventor： Arnaud CASAGRANDE ,  Thierry SCORDILIS ,  Luca DE ROSA ,  Jean GORISSE ,  Jean-Luc AREND

IPC: H04B14/06 ,  H04W88/06 ,  H04B1/00

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.

公开(公告)号：US20230101719A1

公开(公告)日：2023-03-30

申请号：US17857658

申请日：2022-07-05

Applicant: The Swatch Group Research and Development Ltd

Inventor： Arnaud CASAGRANDE ,  Jean-Luc AREND

IPC: H04B1/16 ,  H03D11/02 ,  H04B1/26

Abstract: A correction method (500) for a super-regenerative receiver (100) being configured to resonate at at least one oscillator resonant frequency reference value (111) and comprising at least one control stage (130), at least one varactor (140), at least one reference system (150) and, at least one oscillator (110). The method includes at least one setup (510) of at least one reference signal value (158) by the at least one reference system (150), at least one comparison (560) of at least one oscillator frequency actual value (112) of the at least one oscillator (110) with the at least one reference signal value (158) by the at least one reference system (150) and at least one adjustment (570) of at least one gain of the at least one control stage (130).

公开(公告)号：US20190188548A1

公开(公告)日：2019-06-20

申请号：US16181552

申请日：2018-11-06

Applicant: The Swatch Group Research and Development Ltd

Inventor： Arnaud CASAGRANDE ,  Jean GORISSE ,  Jean-Luc AREND

IPC: G06K19/07 ,  G06K7/10

CPC classification number: G06K19/0701 ,  G06K7/10366 ,  G06K19/0702 ,  G06K19/0707 ,  G06K19/0716 ,  G06K19/0723

Abstract: A transponder-based module is placed on a mobile object so as to transmit information in proximity to a reading device. The transponder-based module includes at least one energy source for supplying the transponder-based module, at least one sensor for performing measurements of a physical parameter, and a microcontroller linked to the measurement sensor for processing the measurements of the sensor. The module further includes a memory unit for storing the measurement data of the measurements performed by the sensor, a receiver of an interrogation signal from a reading device in proximity, and a transmitter for transmitting measurement data stored at ultra-high frequency and at very high bitrate subsequent to the reception of an interrogation signal from the reading device in proximity.

公开(公告)号：US20150177772A1

公开(公告)日：2015-06-25

申请号：US14558839

申请日：2014-12-03

Applicant: The Swatch Group Research and Development Ltd

Inventor： Arnaud CASAGRANDE ,  Jean-Luc AREND

IPC: G05F3/26

CPC classification number: G05F3/262 ,  G05F3/242

Abstract: The electronic circuit with a self-calibrated PTAT current reference includes a PTAT current generator dependent on at least one integrated resistor for supplying a PTAT output current. It further includes a reference current generator dependent on at least one switched capacitor resistor, for supplying a reference current. The reference current and the PTAT output current are compared in a comparator so as to digitally adapt the programmable integrated resistor, or to digitally adapt the dimensional ratio of the transistors of a current mirror in the PTAT current generator, to supply the adapted PTAT output current.

Abstract translation: 具有自校准PTAT电流参考的电子电路包括取决于至少一个用于提供PTAT输出电流的集成电阻器的PTAT电流发生器。 它还包括一个参考电流发生器，它取决于至少一个开关电容电阻器，用于提供参考电流。 参考电流和PTAT输出电流在比较器中进行比较，以便对可编程集成电阻进行数字调适，或数字调整PTAT电流发生器中的电流镜的晶体管的尺寸比，以提供适配的PTAT输出电流 。