公开(公告)号：US20080181294A1

公开(公告)日：2008-07-31

申请号：US11701164

申请日：2007-01-31

Applicant: Jiri Andrle ,  Jan Ingerle ,  Petr Kopecky

Inventor： Jiri Andrle ,  Jan Ingerle ,  Petr Kopecky

IPC: H03K7/04

CPC classification number: H04B1/1027 ,  H03J5/242

Abstract: A system and method to optimize the quality of a modulated signal. In one aspect, an AM demodulator is used in conjunction with proper bandwidth selection of an FM signal. For example, the AM demodulator can be used to generate an instantaneous absolute value of the FM signal. The average value of the FM signal over a period of time is subtracted from the instantaneous absolute value in order to determine a variance in amplitude in the FM signal. In another aspect, several filters may be tested and the one having the lowest variance in amplitude may be used in order to select the filter having the desirable bandwidth.

Abstract translation: 一种优化调制信号质量的系统和方法。 在一个方面，AM解调器与FM信号的适当带宽选择结合使用。 例如，AM解调器可用于产生FM信号的瞬时绝对值。 为了确定FM信号中的幅度方差，从瞬时绝对值中减去一段时间内的FM信号的平均值。 在另一方面，可以测试几个滤波器，并且可以使用具有最小幅度变化的滤波器，以便选择具有期望带宽的滤波器。

公开(公告)号：US20070170974A1

公开(公告)日：2007-07-26

申请号：US11655774

申请日：2007-01-19

Applicant: Hynek Saman ,  Peter Murin ,  Martin Boksa ,  Pavel Panus

Inventor： Hynek Saman ,  Peter Murin ,  Martin Boksa ,  Pavel Panus

IPC: G06G7/12

CPC classification number: H03F3/45928 ,  H03F3/45475 ,  H03F2200/459 ,  H03F2203/45136 ,  H03F2203/45166 ,  H03F2203/45522 ,  H03F2203/45528 ,  H03F2203/45534 ,  H03F2203/45586 ,  H03F2203/45591 ,  H03F2203/45601 ,  H03F2203/45616 ,  H03G1/0088

Abstract: A circuit including a first sensitive node, a first component connected between the first sensitive node and a first terminal of a first switch, said first switch controlled by a first control signal variable between a supply voltage level and a second voltage level, and a second switch including a first terminal connected to the first terminal of said first switch, and a second terminal connected to a clean voltage supply, said second switch controlled to connect the first node of said first switch to said clean voltage supply when said first switch is in a non-conducting state.

Abstract translation: 一种电路，包括第一敏感节点，连接在第一敏感节点和第一开关的第一终端之间的第一组件，所述第一开关由在电源电压电平和第二电压电平之间变化的第一控制信号控制， 开关，包括连接到所述第一开关的第一端子的第一端子和连接到清洁电压源的第二端子，所述第二开关被控制为当所述第一开关处于所述第一开关时将所述第一开关的第一节点连接到所述清洁电压源 非导电状态。

公开(公告)号：US20220302763A1

公开(公告)日：2022-09-22

申请号：US17838794

申请日：2022-06-13

Applicant: STMICROELECTRONICS DESIGN AND APPLICATION S.R.O.

Inventor： Tomas Teply

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/70 ,  H02J50/80 ,  H02J50/00 ,  H01F38/14 ,  H01F27/36 ,  H02J50/40 ,  H04R1/10 ,  H01F27/28

Abstract: A system and method for wireless charging a wireless earbud. The wireless earbud having a body that includes a passive magnetic shield and a coil. The coil is wound around a portion of the body comprising the passive magnetic shielding. The wireless earbud receiving wireless energy in response to the placement of the body within an electromagnetic field, which results in the charging of a battery of the wireless earbud.

公开(公告)号：US20220200344A1

公开(公告)日：2022-06-23

申请号：US17124915

申请日：2020-12-17

Applicant: STMICROELECTRONICS DESIGN AND APPLICATION S.R.O.

Inventor： Michal Toula

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/80

Abstract: A method implemented by a wireless charging receiver (RX) includes detecting, by the wireless charging RX, that a voltage potential of an output of a rectifier of the wireless charging RX has met a boost mode threshold; placing, by the wireless charging RX, the rectifier into a boost mode; and detecting, by the wireless charging RX, that the voltage potential of the output of the rectifier of the wireless charging RX has met a specified threshold, and based thereon, negotiating, by the wireless charging RX with a wireless charging transmitter (TX), to initiate a power transfer.

公开(公告)号：US20210011689A1

公开(公告)日：2021-01-14

申请号：US16941407

申请日：2020-07-28

Applicant: STMICROELECTRONICS, INC. ,  STMICROELECTRONICS DESIGN AND APPLICATION S.R.O.

Inventor： Mahesh CHOWDHARY ,  Miroslav BATEK ,  Marian LOUDA

IPC: G06F8/34 ,  G06F8/36 ,  H04L29/08

Abstract: The disclosure describes methods and apparatus for quickly prototyping of a solution developed using one or more sensing devices (e.g., sensors), functional blocks, algorithm libraries, and customized logic. The methods produce firmware executable by a processor (e.g., a microcontroller) on an embedded device such as a development board, expansion board, or the like. By performing these methods on the apparatus described, a user is able to create a function prototype without having deep knowledge of the particular sensing device or any particular programming language. Prototypes developed as described herein enable the user to rapidly test ideas and develop sensing device proofs-of-concept. The solutions produced by the methods and apparatus improve the functioning of the sensor being prototyped and the operation of the embedded device where the sensor is integrated.

公开(公告)号：US20200259473A1

公开(公告)日：2020-08-13

申请号：US16786182

申请日：2020-02-10

Applicant: STMicroelectronics Design and Application S.R.O.

Inventor： Sandor PETENYI

IPC: H03F3/45 ,  H03F1/30 ,  H03F1/02

Abstract: A MOSFET has a current conduction path between source and drain terminals. A gate terminal of the MOSFET receives an input signal to facilitate current conduction in the current conduction path as a result of a gate-to-source voltage reaching a threshold voltage. A body terminal of the MOSFET is coupled to body voltage control circuitry that is sensitive to the voltage at the gate terminal of the MOSFET. The body voltage control circuitry responds to a reduction in the voltage at the gate terminal of the MOSFET by increasing the body voltage of the MOSFET at the body terminal of the MOSFET. As a result, there is reduction in the threshold voltage. The circuit configuration is applicable to amplifier circuits, comparator circuits and current mirror circuits.

公开(公告)号：US10725746B2

公开(公告)日：2020-07-28

申请号：US16281040

申请日：2019-02-20

Applicant: STMicroelectronics, Inc. ,  STMicroelectronics Design and Application S.R.O.

Inventor： Mahesh Chowdhary ,  Miroslav Batek ,  Marian Louda

IPC: G06F8/34 ,  G06F8/36 ,  H04L29/08

Abstract: The disclosure describes methods and apparatus for quickly prototyping of a solution developed using one or more sensing devices (e.g., sensors), functional blocks, algorithm libraries, and customized logic. The methods produce firmware executable by a processor (e.g., a microcontroller) on an embedded device such as a development board, expansion board, or the like. By performing these methods on the apparatus described, a user is able to create a function prototype without having deep knowledge of the particular sensing device or any particular programming language. Prototypes developed as described herein enable the user to rapidly test ideas and develop sensing device proofs-of-concept. The solutions produced by the methods and apparatus improve the functioning of the sensor being prototyped and the operation of the embedded device where the sensor is integrated.

公开(公告)号：US10528189B2

公开(公告)日：2020-01-07

申请号：US15948147

申请日：2018-04-09

Applicant: STMicroelectronics Design and Application S.R.O.

Inventor： Milan Andrle ,  Martin Havlasek ,  Martin Fucik

IPC: G06F3/041 ,  G06F3/044

Abstract: Disclosed is a method for testing touch screen displays during manufacture. A touch screen controller (TSC) is packaged, and the analog channels of the TSC are characterized, with resulting data being stored for later use. The TSC is programmed, and the touch screen display and TSC are packaged together. The touch screen display is tested using firmware in the TSC, enabling calculation of the inherent capacitances between force and sense lines of the touch screen display when connected to the TSC during operation. The testing involves, for each force and sense line pair, measuring an output signal generated by a receive channel of the TSC coupled to the sense line of that pair. Based upon the data gathered during characterization, and the signals measured during testing, the capacity of the touch screen display is then calculated.

公开(公告)号：US10484217B2

公开(公告)日：2019-11-19

申请号：US15606979

申请日：2017-05-26

Applicant: STMicroelectronics Design and Application s.r.o. ,  STMicroelectronics S.r.l.

Inventor： Eusebio Dicola ,  Elena Salurso ,  Jan Milsimer

IPC: H04L27/144 ,  H04L27/156 ,  H04L27/10 ,  G01R29/027 ,  H04L1/20 ,  H04L1/18 ,  H04L25/06

Abstract: An occurrence of a first set of n periods of a frequency-shift-keying (FSK)-modulated waveform is counted, where n is an integer number. The n periods of the FSK-modulated waveform in the first set have a first time duration. An occurrence of a second set of n periods of the waveform is counted. The n periods of the waveform in the second set have a second time duration. The first time duration is determined based on the counting of the first set of n periods. The second time duration is determined based on the counting of the second set of n periods. A difference between the first time duration and the second time duration is compared to a threshold. Changes in frequency of the waveform are detected based on the comparing of the difference between the first time duration and the second time duration to the threshold.

公开(公告)号：US20190334366A1

公开(公告)日：2019-10-31

申请号：US15964793

申请日：2018-04-27

Applicant: STMicroelectronics Design and Application S.R.O.

Inventor： Karel BLAHA ,  Martin DRINOVSKY

IPC: H02J7/02 ,  H02J50/05 ,  H02J50/80

Abstract: An analog ping signal that is present at a secondary coil of a power receiving device operating within a wireless power transmission system is detected. The detection circuit includes a DC blocking circuit having an input directly connected to a terminal of the secondary coil. A comparator circuit has an input coupled to an output of the DC blocking circuit. A timer circuit is reset by a signal output by the comparator circuit to assert a ping detect signal in response to a resetting of the timer circuit. The ping detect signal is deasserted in response to a timing out of the timer circuit.