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1. 发明授权

US10547204B2 Energy harvesting circuit with an oscillating structure 有权
公开(公告)号：US10547204B2
公开(公告)日：2020-01-28
申请号：US16134115
申请日：2018-09-18
申请人： The Swatch Group Research and Development Ltd
发明人： Massimiliano Bracco
IPC分类号： H02J7/34 , H02M3/07 , H02M3/156 , H02J1/10
摘要： The present invention relates to an energy harvesting circuit for harvesting energy from at least one energy source. The circuit comprises: an oscillating circuit comprising an inductor and a first capacitor for temporarily storing charges from the energy source and connected in series with the inductor, the inductor being connected to a first oscillating circuit node, while the first capacitor being connected to a second oscillating circuit node; a first switch connected between the first oscillating circuit node and the energy source for selectively connecting and disconnecting the energy source to or from the oscillating circuit; a second switch connected between ground and the first oscillating circuit node for generating a negative voltage across the first capacitor during oscillations of the oscillating circuit for collecting charges from the at least one energy source when the voltage across the first capacitor is negative; a voltage regulating element for controlling voltage across the energy source; a control circuit for controlling opening and closing of the first and second switches; and a clock signal generator for providing a clock signal to the control circuit to allow opening and closing the first and second switches in a timely coordinated manner.

2. 发明授权

US10003301B2 Drive circuit for an oscillator 有权
公开(公告)号：US10003301B2
公开(公告)日：2018-06-19
申请号：US15270652
申请日：2016-09-20
申请人： The Swatch Group Research and Development Ltd
发明人： Massimiliano Bracco
IPC分类号： H03B5/08 , H03B5/32 , H03K3/02 , H03B5/06 , H03K21/38
CPC分类号： H03B5/32 , H03B5/06 , H03B5/364 , H03K3/02 , H03K21/38
摘要： The present invention concerns a drive circuit for driving an oscillator. The drive circuit comprises a first inductor comprising a first terminal and a second terminal; an electrical energy source connected to the first terminal; and a switching circuit connected to the second terminal and to the oscillator. The switching circuit is configured to operate at least in an off state, where it is configured not to feed electrical energy to the oscillator, and in an on state, where it is configured to feed electrical energy to the oscillator. The first inductor is arranged to store energy in its magnetic field when the switching circuit is in the off state, and, when the switching circuit is in the on state, the switching circuit is arranged to use at least some of the energy stored in the magnetic field to deliver a surge of current from the electrical energy source to the oscillator.

3. 发明授权

US09608597B2 Digital interpolator and method of interpolating 有权
公开(公告)号：US09608597B2
公开(公告)日：2017-03-28
申请号：US14788874
申请日：2015-07-01
申请人： The Swatch Group Research and Development Ltd.
发明人： Massimiliano Bracco
IPC分类号： H03B19/00 , H03H11/20 , H03H17/06 , H03L7/16 , H03H17/04 , H03B21/00
CPC分类号： H03H11/20 , H03B19/00 , H03B21/00 , H03H17/04 , H03H17/0444 , H03H17/06 , H03H17/0671 , H03L7/16
摘要： The present invention relates to a digital interpolator, comprising an input to receive an input signal at a first clock frequency and comprising an output to provide an interpolated signal at a second clock frequency larger than the first clock frequency. The interpolator comprises a differentiator connected to the input, an interpolator stage connected to a differentiator output, and an integrator connected to the output and connected to an output of the interpolator stage.

4. 发明授权

US10996629B2 Electromechanical timepiece 有权
公开(公告)号：US10996629B2
公开(公告)日：2021-05-04
申请号：US16022933
申请日：2018-06-29
申请人： The Swatch Group Research and Development Ltd
发明人： Massimiliano Bracco
IPC分类号： G04C10/00 , G04B17/32 , G04B17/00 , G04C3/10 , H02P9/42 , H02P3/06
摘要： The present invention relates to a timepiece comprising: a mechanical power source coupled to a time indicating display, a generator, wherein the mechanical power source is coupled to the generator, a regulator circuit configured for enslaving a generator frequency of the generator to a reference frequency, wherein the regulator circuit is configured for electrically braking the generator when the generator frequency is higher than the reference frequency, wherein the regulator circuit comprises: at least a first switch, at least a first inductor and at least a first capacitor, wherein the first switch and the first capacitor are arranged parallel to each other and wherein the first switch and the first capacitor are arranged in series with the first inductor.

5. 发明授权

US09537454B2 Electronic device for generation of an audible alarm or music 有权
标题翻译：用于产生声音报警或音乐的电子设备
公开(公告)号：US09537454B2
公开(公告)日：2017-01-03
申请号：US14863892
申请日：2015-09-24
申请人： The Swatch Group Research and Development Ltd
发明人： Massimiliano Bracco
IPC分类号： H04R29/00 , H03F3/183 , G10K9/12 , B06B1/02 , H03F3/217 , H04R17/10
CPC分类号： H03F3/183 , B06B1/0207 , B06B2201/51 , B06B2201/55 , G10K9/12 , H03F3/217 , H03F2200/03 , H04R17/10 , H04R2499/11
摘要： The electronic device is arranged for generation of an audible alarm or music. It includes a coil or inductor and a buzzer provided with a capacitor connected in series with the coil. When the electronic device is actuated, the buzzer generates the audible alarm or music. The electronic device further includes, in a feedback loop, a derivative circuit connected to a connection node between the coil and the capacitor, to produce a derivative of the signal from the capacitor, and a comparator for comparing a derivative signal from the derivative circuit with a reference voltage. The comparator supplies an output signal to the coil to amplify the signal across the capacitor, so that the buzzer generates at least one audible alarm.
摘要翻译：电子设备被安排用于产生可听报警或音乐。它包括线圈或电感器以及设置有与线圈串联连接的电容器的蜂鸣器。当电子设备启动时，蜂鸣器会产生声音报警或音乐。该电子装置还包括在反馈回路中，连接到线圈和电容器之间的连接节点的导数电路，以产生来自电容器的信号的导数，以及用于将来自导数电路的导数信号与参考电压。比较器向线圈提供输出信号以放大电容器两端的信号，使蜂鸣器产生至少一个声音报警。

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