专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US11540763B2 Control method and system for filtering power line interferences 有权
公开(公告)号：US11540763B2
公开(公告)日：2023-01-03
申请号：US16645311
申请日：2017-09-08
申请人： MAISONBURG (SHENZHEN) TECHNOLOGY DEVELOPMENT CO., LTD.
发明人： Tongsheng Zhang
IPC分类号： G01R29/26 , A61B5/00 , A61B5/316 , G01R13/00 , A61B5/318
摘要： A control method and system for filtering power line interference is disclosed. The control method includes the following steps. First, ECG signals are pre-segmented and rectified; then the sinusoidal frequency, amplitude, and phase of the rectified segmented signals are extracted. These estimated sinusoidal parameters from each recorded channel are weighted by their individual signal to noise ratios before being averaged to achieve the optimal powerline frequency, amplitude, and phase. Based on these optimal sinusoidal parameters, the individual sinusoidal waveform is reconstructed and then is subtracted from the corresponding ECG segment, in order to obtain the clean ECG signals. This method of filtering the powerline interference through removal from recorded signals enables accurate measurement without any ringing effect that could lead to signal distortion issues. Thus this invention solves the ringing problem encountered by traditional notch filter techniques when signal amplitude suddenly changes in a measurement.

2. 发明授权

US11539386B2 Communication conduits within communications assemblies 有权
公开(公告)号：US11539386B2
公开(公告)日：2022-12-27
申请号：US16969768
申请日：2019-02-12
申请人： GENERAL ELECTRIC TECHNOLOGY GMBH
发明人： Andrew Patrick Nolan
IPC分类号： H04B1/10 , G01R29/26
摘要： In the field of communications assemblies, particularly those arising in connection with high voltage direct current (HVDC) power converters, there is provided a communications assembly (10) that comprises a first module (12) which is arranged in operative communication with a second module (14A, 14B, 14C, 14D, 14E, 14F, 14G, 14H) via a communication conduit (16A, 16B, 16C, 16D, 16E, 16F, 16G, 16H). At least one of the first module (12) and the second module (14A, 14B, 14C, 14D, 14E, 14F, 14G, 14H) have a receiver (24) that includes a squelch filter (26) which is configured to operate in a first normal mode and a second test mode. The squelch filter (26) normally operates in the first normal mode to suppress a signal output (28) from the receiver (24) when the strength of an input signal (30) received by the receiver (24), via the communication conduit (16A, 16B, 16C, 16D, 16E, 16F, 16G, 16H), falls below a normal threshold. The squelch filter (26) selectively operates in the second test mode to suppress the signal output (28) from the receiver (24) when the strength of the input signal (30) received by the receiver (24), via the communication conduit (16A, 16B, 16C, 16D, 16E, 16F, 16G, 16H), falls below a test threshold higher than the normal threshold. When the squelch filter (26) is operating in the second test mode, a signal output (28) from the receiver (24) indicates a signal margin in the communication conduit (16A, 16B, 16C, 16D, 16E, 16F, 16G, 16H) that is at least equal to the difference between the test threshold and the normal threshold.

3. 发明授权

US11487311B2 Modulating jitter frequency as switching frequency approaches jitter frequency 有权
公开(公告)号：US11487311B2
公开(公告)日：2022-11-01
申请号：US17366724
申请日：2021-07-02
申请人： POWER INTEGRATIONS, INC.
发明人： Giao Minh Pham , Lance M. Wong
IPC分类号： H03D3/24 , G05F1/46 , G01R31/317 , H03L7/187 , H02M3/335 , G01R31/28 , G01R29/26 , H02M1/44 , G02F1/35 , H02M1/00
摘要： A method for providing a jitter signal for modulating a switching frequency of a power switch for a power converter. The method comprising receiving a drive signal representative of the switching frequency of the power switch, detecting the switching frequency from the drive signal, determining if the switching frequency is less than a first threshold frequency, and modulating a frequency of the jitter signal in response to determining if the switching frequency is less than the first threshold frequency.

4. 发明授权

US11484271B2 Alert presentation based on ancillary device conditions 有权
公开(公告)号：US11484271B2
公开(公告)日：2022-11-01
申请号：US16997804
申请日：2020-08-19
申请人： West Affum Holdings Corp.
发明人： Zoie R. Engman , Joseph L. Sullivan , David P. Finch
IPC分类号： G08B21/00 , A61B5/00 , G08B21/18 , G01R29/26 , G01R27/26 , A61B5/25 , A61B5/316 , A61B5/24 , A61N1/39
摘要： In one embodiment, a method to differentiate between causes of noise in an electrocardiogram (ECG) signal. The method connecting to at least one sensing electrode and obtaining the ECG signal from the at least one sensing electrode. The method also includes detecting noise on the ECG signal and detecting ancillary conditions. The method also includes associating the noise on the ECG signal with at least one of the ancillary conditions and providing an actionable indication to a patient associated with the noise on the ECG signal.

5. 发明申请

US20220276292A1 MEASUREMENT DEVICE AND MEASUREMENT METHOD 有权
公开(公告)号：US20220276292A1
公开(公告)日：2022-09-01
申请号：US17631607
申请日：2020-07-21
申请人： SONY GROUP CORPORATION
发明人： Junji MAESHIMA , Seigo FUKUNAGA , Yoshihiro KATO , Kotaro FUJIMORI
IPC分类号： G01R29/08 , G01R29/26 , H04B17/29 , G01R23/16 , H04B17/10
摘要： Devices and methods to allow a source of noise generated by modulation with a signal inside a device to be easily measured. A measurement device according to an embodiment includes: a transmission unit that applies a first signal formed by a high frequency signal to an object to be measured; a reception unit that receives a second signal formed by a high frequency signal generated from the object to be measured; and a measurement unit that measures the second signal received by the reception unit. The reception unit receives the second signal while the transmission unit applies the first signal.

6. 发明申请

US20220252439A1 ACCELEROMETER APPARATUSES AND SYSTEMS FOR NOISE REJECTION 有权
公开(公告)号：US20220252439A1
公开(公告)日：2022-08-11
申请号：US17591086
申请日：2022-02-02
申请人： Kionix, Inc.
发明人： Jonah DEWALL
IPC分类号： G01D18/00 , G01R29/26 , H03F3/45 , H03H11/12
摘要： A sensor apparatus includes a resonator, a transducer, a damping resistor, a first switch, a filter stage, a second switch, and a noise rejection stage. The transducer is configured to detect a position of the resonator. The damping resistor is configured to electrostatically actuate the transducer and convert a thermomechanical noise of the resonator to an electromechanical noise. The first switch is configured to receive a first signal from the transducer. The filter stage is configured to receive the first signal and adjust a phase and a gain of the first signal and output a filtered first signal. The second switch is configured to receive a second signal from the transducer. The noise rejection stage is configured to receive the filtered first signal and the second signal and reduce the filtered first signal from an output signal.

7. 发明申请

US20220202370A1 SYSTEMS, METHODS, AND PROCESSES FOR DETECTING ELECTRODE WIRE NOISE 有权
公开(公告)号：US20220202370A1
公开(公告)日：2022-06-30
申请号：US17136596
申请日：2020-12-29
申请人： Biosense Webster (Israel) Ltd.
发明人： Lior Botzer , Meir Bar-Tal
IPC分类号： A61B5/00 , G01R29/26 , A61B5/287 , A61B5/06 , A61M25/01
摘要： The present disclosure provides systems, methods, and processes for detecting electrode wire noise caused by flexing or deflection of a distal tip of a probe. Various sensor configurations are disclosed for detecting this noise, including displacement sensors for probe actuators and sensing wires integrated with the probe electrode wires.

8. 发明申请

US20220155368A1 CFAR OS DETECTION HARDWARE 有权
公开(公告)号：US20220155368A1
公开(公告)日：2022-05-19
申请号：US17351750
申请日：2021-06-18
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Sujaata RAMALINGAM , Karthik SUBBURAJ , Pankaj GUPTA , Anil Varghese MANI , Karthik RAMASUBRAMANIAN , Indu PRATHAPAN
IPC分类号： G01R31/317 , G01R29/26 , G11C19/28 , G01S7/40
摘要： A system includes a shift register to store data samples, where the shift register includes a cell under test (CUT), a left guard cell, a right guard cell, a left window, and a right window. The system includes two sets of comparators to compare incoming data samples with data samples in the left window and the right window to compute ranks of the incoming data samples. The system includes a sorted index array to store a rank of the data samples in the shift register. The system includes a selector to select a Kth smallest index from the sorted index array and its corresponding data sample from the shift register. The system includes a target comparator, where the first comparator input receives a data sample from the CUT and the second comparator input receives a Kth smallest data sample, and the comparator output indicates a CFAR target detection.

9. 发明授权

US11307166B2 Column ADC 有权
公开(公告)号：US11307166B2
公开(公告)日：2022-04-19
申请号：US16850823
申请日：2020-04-16
申请人： LIFE TECHNOLOGIES CORPORATION
发明人： Keith G. Fife
IPC分类号： G01N27/414 , H01L27/146 , H04N5/374 , G01N33/00 , C12Q1/6869 , G01J1/46 , G01R29/26 , H01L29/66
摘要： The described embodiments may provide a chemical detection circuit. The chemical detection circuit may comprise a column of chemically-sensitive pixels. Each chemically-sensitive pixel may comprise a chemically-sensitive transistor, and a row selection device. The chemical detection circuit may further comprise a column interface circuit coupled to the column of chemically-sensitive pixels and an analog-to-digital converter (ADC) coupled to the column interface circuit. Each column interface circuit and column-level ADC may be arrayed with other identical circuits and share critical resources such as biasing and voltage references, thereby saving area and power.

10. 发明申请

US20220107354A1 RECEIVING DEVICE, MOBILE TERMINAL TEST APPARATUS PROVIDED WITH RECEIVING DEVICE, AND MOBILE TERMINAL TEST METHOD 有权
公开(公告)号：US20220107354A1
公开(公告)日：2022-04-07
申请号：US17480682
申请日：2021-09-21
申请人： ANRITSU CORPORATION
发明人： Takasumi IKEBE , Kenji GOTO , Mayfor DANGKIW
IPC分类号： G01R31/28 , G01R23/20 , G01R29/26 , G01R31/319
摘要： A receiving device includes a reception unit that samples a sample signal from a DUT 2; an FFT processing unit 21 that performs an FFT process by multiplying the sample signal by a window function; an FFT length setting unit 34 that, when the signal length of the signal to be measured is shorter than the first FFT length conforming to the communication standard, instead of the first FFT length, sets a second FFT length shorter than the signal length of the signal to be measured, as an FFT length of the FFT process; and a window function setting unit 35 that, when the signal length of the signal to be measured is shorter than the first FFT length, instead of a first window function, sets an asymmetric second window function having a peak separated from a center of a window section, as the window function.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式