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1. 发明授权

US11933892B2 Ultrasound imaging system and method 有权
公开(公告)号：US11933892B2
公开(公告)日：2024-03-19
申请号：US16074126
申请日：2017-01-20
申请人： KONINKLIJKE PHILIPS N.V.
发明人： David Andrew Fish , Gerardus Johannus Jacobus Maria Arnoldussen , Sotir Filipov Ouzounov , Emil Dimitrov Totev
IPC分类号： G01S15/89 , A61B8/06 , A61B8/08 , B06B1/02 , G01S7/52
CPC分类号： G01S15/8927 , B06B1/0207 , G01S7/52025 , G01S7/5208 , A61B8/06 , A61B8/0825 , A61B8/0883 , A61B8/485 , B06B2201/51 , B06B2201/55 , B06B2201/76
摘要： An ultrasound imaging system has an array of ultrasound transducers comprising a set of sub-arrays of transducers. Each transducer (100) has an analogue buffer (106). Each sub-array of transducers has a signal path (102, 104) from within the array of ultrasound transducers to outside the array of ultrasound transducers which comprises one or more hops between the buffers (106). To reduce the signal line length from inside the array of ultrasound transducers to the periphery, at least some multiple hops between buffers (106) are provided. Each buffer hop introduces a delay, but prevents signal degradation so that a large number of analog signals can be transmitted across the large area ASIC of the transducer array.

2. 发明授权

US10429460B2 Radio frequency antenna device for generating a digital magnetic resonance information signal 有权
公开(公告)号：US10429460B2
公开(公告)日：2019-10-01
申请号：US14782872
申请日：2014-04-09
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Sotir Filipov Ouzounov
IPC分类号： G01R33/36 , G01R33/34 , G01R33/54
摘要： A radio frequency (RF) antenna device (140) provides magnetic resonance (MR) information from an examination space (116) of a MR imaging system (110). At least one RF coil (142) with at least one connection port (144) receives an analog MR information signal and at least one analog-to-digital converter (ADC) (150) converts the analog MR information signal into a digital MR information signal with a sampling frequency which is below the Nyquist frequency of an RF carrier signal. The at least one ADC (150) is a RF band-pass sub-sampled sigma-delta analog-to-digital converter. The RF coil and the components into the RF antenna device are integrated to provide the MR information signal as a digital signal. The digital MR information signal can easily be further processed and transmitted, even in the presence of strong magnetic and RF fields.

3. 发明授权

US10080122B2 Receiver, transceiver, transceiver module for a body coupled communication device, a body coupled communication system and a method of waking-up a body coupled receiver of a body coupled communication device 有权
公开(公告)号：US10080122B2
公开(公告)日：2018-09-18
申请号：US14781628
申请日：2014-04-03
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Ashoka Sathanur Visweswara , Anteneh Alemu Abbo , Sotir Filipov Ouzounov , Johan-Paul Marie Gerard Linnartz , Ronald Van Langevelde
IPC分类号： H04W4/80 , H04B13/00 , H04W4/00 , H04W52/02 , G06F1/32
CPC分类号： H04W4/80 , G06F1/325 , H04B13/005 , H04W52/0225 , Y02D70/00 , Y02D70/166 , Y02D70/26
摘要： A receiver module (101), transceiver module for body coupled communication devices (100) and a method of waking-up a body coupled receiver of a body coupled communication device (100) are provided. The receiver module (101) of the body coupled communication device (100) comprises couplers (102) for receiving signals via a body transmission channel (160) which follows a body of a user (150). A wake-up receiver (108) and a main receiver (106) of the receiver module (101) are coupled to the couplers (102). The main receiver (106) may operate in a sleep mode and in an operational mode. The wake-up receiver (108) generates a wake-up signal (107) when signals received via the body transmission channel (160) in a predefined spectral range exceed an energy threshold level. The wake-up signal (107) is provided to a circuitry of the body coupled communication device (100) to directly or indirectly configuring the main receiver (106) in the operational mode.

4. 发明授权

US09973284B2 Communication device and system for performing data communication using a human or animal body as transmission medium 有权
公开(公告)号：US09973284B2
公开(公告)日：2018-05-15
申请号：US15511434
申请日：2015-09-15
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Sotir Filipov Ouzounov
IPC分类号： H04B13/00 , H04B1/38 , G06F13/40 , H04B1/3827 , H04W52/52
CPC分类号： H04B13/005 , G06F13/4072 , H04B1/385 , H04W52/52 , Y02D10/14 , Y02D10/151
摘要： The invention is directed at a communication device for performing data communication using a human or animal body as transmission medium. The communication device comprises a transceiver unit comprising at least one of a transmitter and a receiver. The communication device also comprises an electrostatic transducer for enabling data communication via a surface of the body with one or more user devices in touch with or located near (i.e. in close proximity, e.g. within a range of 0-10 mm therefrom) the body. The communication device further comprises an ultrasonic transducer for enabling data communication through the body using ultrasonic waves. Both the electrostatic transducer and the ultrasonic transducer are capacitive type transducers connected to and operated via the transceiver unit.

5. 发明公开

US20240142552A1 PHASE-COHERENT READ-OUT OF MRI SENSOR NODES 审中-公开
公开(公告)号：US20240142552A1
公开(公告)日：2024-05-02
申请号：US18280692
申请日：2022-03-03
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Filips Van Liere , Cumhur Erdin , Sotir Filipov Ouzounov
IPC分类号： G01R33/36
CPC分类号： G01R33/3621
摘要： The invention relates to phase-coherent read-out of sensor nodes (3) of a magnetic resonance imaging system (1) with a digital serial communication network (2). According to the invention, the network (2) comprises multiple sensor nodes (3) for detecting a radio frequency signal from a patient who is under examination by the magnetic resonance imaging system (1), and a host node (4) which is connected to the sensor nodes (3) via a network link (5) for merging and processing digital sensor data received from the sensor nodes (3), wherein the host node (4) comprises a receiver (6) connected to the network link (5) for receiving data over the network link (5), and a transmitter (7) connected to the network link (5) for transmitting data over the network link (5), the sensor nodes (3) each comprise an analog-to-digital converter (8) for converting the detected radio frequency signal to the digital sensor data, a receiver (9) connected to the network link (5) for receiving data over the network link (5), a transmitter (10) connected to the network link (5) for transmitting data over the network link (5), and a clock and data recovery unit (11) with a clock device which is configured for miming on a preset free-running frequency, the frequency of the data transmission over the network link (5) is set to a fixed frequency relative to the preset free-running frequency of the clock devices, and the clock and data recovery units (11) are configured for generating a recovered clock signal for controlling the analog-to-digital converter (8) of their sensor node by regulating the frequency of the clock device of their sensor node (3) to lock to the frequency of the data transmission over the network link (5). In this way, the possibility of phase coherent sensory data acquisition with a magnetic resonance imaging system (1) is provided in a robust and cost-efficient way.

6. 发明授权

US11846689B2 RF receiver system with adjustable impedance matching 有权
公开(公告)号：US11846689B2
公开(公告)日：2023-12-19
申请号：US17487283
申请日：2021-09-28
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Rameswor Shrestha , Filips van Liere , Sotir Filipov Ouzounov , Emil Dimitrov Totev , Pol Ketan Jayant
IPC分类号： G01R33/36 , H03F1/56 , H03F3/19
CPC分类号： G01R33/3621 , G01R33/3614 , H03F1/565 , H03F3/19 , H03F2200/222 , H03F2200/451
摘要： A RF receiver system for an MRI apparatus includes a receive coil, which exhibits a total effective coil impedance composed of the coil impedance of the coil itself and a patient impedance. An analog-to-digital converter is connected to an amplifier for converting the amplified output signal from the amplifier to a digital signal for further processing. A matching network is interconnected between the receive coil and the amplifier and includes a matching system with an adjustable impedance for matching the total effective coil impedance to the lowest noise impedance, and a noise calculation unit is connected to the analog-to-digital converter for receiving the digital output signal of the converter and is configured to calculate noise of the output signal of the analog-to-digital converter and for adjusting the adjustable impedance of the matching network in order to calibrate the matching network for every patient individually before the scanning process.

7. 发明申请

US20210028793A1 SYSTEMS AND METHODS FOR PERFORMING ANALOG-TO-DIGITAL CONVERSION ACROSS MULTIPLE, SPATIALLY SEPARATED STAGES 有权
公开(公告)号：US20210028793A1
公开(公告)日：2021-01-28
申请号：US17041782
申请日：2019-03-26
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Sotir Filipov Ouzounov , Emil Dimitrov Totev
IPC分类号： H03M3/00 , H03M1/12
摘要： The invention provides a signal processing system, for transferring analog signals from a probe to a remote processing unit. The system comprises a first ASIC at a probe, which is adapted to receive an analog probe signal. The first ASIC comprises an asynchronous sigma-delta modulator, wherein the asynchronous sigma-delta modulator is adapted to: receive the analog probe signal; and output a binary bit-stream. The system further comprises a second ASIC at the remote processing unit, adapted to receive the binary bit-stream. The asynchronous may further include a time gain function circuit, the first ASIC may further comprise a multiplexer, the second ASIC may further comprise a time-to-digital converter. The time to digital converter may be a pipelined time-to-digital converter.

8. 发明授权

US10284223B2 Method of performing analog-to-digital conversion 有权
公开(公告)号：US10284223B2
公开(公告)日：2019-05-07
申请号：US15757001
申请日：2016-09-06
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Sotir Filipov Ouzounov , Ketan Pol
IPC分类号： H03M3/00
摘要： The invention describes a method of performing analog-to-digital conversion on an input signal (Pin) within a range (R1) using a sigma-delta modulator (1) comprising a feedback digital-to-analog conversion arrangement (12, 120), which method comprises the steps of: obtaining an amplitude estimate (E1, E2, E3, E4) of the input signal (Pin); defining a subsequent subrange (R2, R3, R4) on the basis of the amplitude estimate (E1, E2, E3); and adjusting operation parameters of the feedback digital-to-analog conversion arrangement (12, 120) on the basis of the subsequent subrange (R2, R3, R4); whereby the method steps are repeated a predefined number of iterations (N). The invention further describes a sigma-delta modulator (1), an analog-to-digital converter (50), and a monitoring device (5) for monitoring an analog input signal (Pin).

9. 发明授权

US11937982B2 2D array ultrasound probe with 3 watt digital microbeamformer 有权
公开(公告)号：US11937982B2
公开(公告)日：2024-03-26
申请号：US17713423
申请日：2022-04-05
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Bernard Joseph Savord , Antonia Cornelia Van Rens , Sotir Filipov Ouzounov , McKee Dunn Poland , Nik Ledoux
IPC分类号： A61B8/00 , G01S7/52 , G01S15/89 , G10K11/34
CPC分类号： A61B8/4494 , A61B8/56 , G01S7/52023 , G01S7/5208 , G01S7/52085 , G01S7/52095 , G01S7/52096 , G01S15/8925 , G10K11/341 , G10K11/346 , A61B8/4461
摘要： An ultrasound probe has a two dimensional matrix array transducer and a digital microbeamformer. The microbeamformer comprises a plurality of transmitters and amplifiers coupled to elements of the array transducer, a plurality of low power analog to digital converters and digital beamforming circuitry coupled to the amplifiers, a microbeamformer controller, a power supply and a USB controller which cumulatively consume three watts or less.

10. 发明申请

US20210367611A1 SYSTEMS AND METHODS FOR PERFORMING ANALOG-TO-DIGITAL CONVERSION ACROSS MULTIPLE, SPATIALLY SEPARATED STAGES 有权
公开(公告)号：US20210367611A1
公开(公告)日：2021-11-25
申请号：US17041593
申请日：2019-03-26
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Sotir Filipov Ouzounov , Emil Dimitrov Totev
IPC分类号： H03M3/00 , A61B8/08 , H03M1/12 , H03M1/50
摘要： The invention provides a signal processing system, for transferring analog signals from a probe to a remote processing unit. The system comprises a first ASIC at a probe, which is adapted to receive an analog probe signal. The first ASIC comprises an asynchronous sigma-delta modulator, wherein the asynchronous sigma-delta modulator is adapted to: receive the analog probe signal; and output a binary bit-stream. The system further comprises a second ASIC at the remote processing unit, adapted to receive the binary bit-stream. The asynchronous may further include a time gain function circuit, the first ASIC may further comprise a multiplexer, the second ASIC may further comprise a time-to-digital converter. The time to digital converter may be a pipelined time-to-digital converter.

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