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公开(公告)号：US11449152B2
公开(公告)日：2022-09-20
申请号：US17266479
申请日：2019-08-07
申请人： Sonuus Limited
摘要： An electronic drum, comprising: a bottom member; a drum head; a drum sensor comprising: a passive resonant circuit mounted on the drum head and having a resonant frequency; and an active resonant circuit mounted on the bottom member and configured to excite the passive resonant circuit at the resonant frequency; a sensor driver to drive the active resonant circuit with an RF drive signal at the resonant frequency; and a detector to detect a level of RF signal from the driven active resonant circuit for sensing a position and/or velocity of the drum head; and a signal processor, coupled to the detector, configured to process the detected level of RF signal to sense a position and/or velocity of the drum head for determining when the drum head is hit.
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公开(公告)号：US11422637B2
公开(公告)日：2022-08-23
申请号：US17266446
申请日：2019-08-07
申请人： Sonuus Limited
摘要： A sensing system for a computer input device. The sensing system comprises an actuator to attach to a key top or button. The actuator is moveable along an axis or hinged. The sensing system further comprises a biasing element to exert a biasing force on the actuator directed along the axis. The sensing system further comprises an actuator motion sensor associated with the actuator. The actuator motion sensor comprises a passive resonant circuit configured to be moved by the actuator and having a resonant frequency, an active resonant circuit configured to excite the passive resonant circuit at the resonant frequency, a sensor driver to drive the active resonant circuit with an RF drive signal at the resonant frequency, and a detector to detect a level of RF signal from a driven actuator motion sensor for sensing a position and/or velocity of the actuator.
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公开(公告)号：US20240271919A1
公开(公告)日：2024-08-15
申请号：US18567295
申请日：2022-06-02
申请人： SONUUS LIMITED
发明人： James Hastings CLARK
CPC分类号： G01B7/003 , G01D5/2066 , G10H1/055 , H03K17/9537 , H03K17/9618 , H03K17/972 , G10H2220/271 , G10H2220/275 , H03K2017/9713
摘要： The present disclosure relates to a sensor comprising a resonant circuit, a driver, a drive enable circuit, a sample-and-hold-circuit, and a measurement circuit. The resonant circuit comprises a passive load and an active circuit, at least one of the active circuit and passive load tuned to resonate at a resonant frequency. The driver is configured to drive the active circuit to output an RF signal at the resonant frequency, while the drive enable circuit generates a control signal to enable and disable the driver. The sample-and-hold circuit is configured to hold a peak level of the amplitude signal, and the measurement circuit detects a relative position and/or movement between the passive load and active circuit based on the held peak level. Corresponding systems, methods and apparatus are also described.
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公开(公告)号：US11657789B2
公开(公告)日：2023-05-23
申请号：US16904994
申请日：2020-06-18
申请人： SONUUS LIMITED
CPC分类号： G10H1/0555 , G10H1/182 , G10H1/344 , H03K17/972 , G10H2220/221 , G10H2220/271 , G10H2220/275 , H03K2017/9706
摘要： A sensing system for a keyboard. Each key sensor comprises passive and active resonant circuits. The passive resonant circuit has a resonant frequency and the active resonant circuit excites the passive resonant circuit at the resonant frequency. A sensor driver drives the active resonant circuit with an RF drive signal, a multiplexing system multiplexes the drive signal such that simultaneously driven key sensors are separated by at least (k−1) keys, and a detector detects a level of RF signal from a driven key sensor for sensing a position and/or velocity of a key.
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公开(公告)号：US12112732B2
公开(公告)日：2024-10-08
申请号：US17726190
申请日：2022-04-21
申请人： SONUUS LIMITED
IPC分类号： G10H1/055 , G10H1/18 , G10H1/34 , H03K17/972 , H03K17/97
CPC分类号： G10H1/0555 , G10H1/182 , G10H1/344 , H03K17/972 , G10H2220/221 , G10H2220/271 , G10H2220/275 , H03K2017/9706
摘要： A sensing system for a keyboard. Each key sensor comprises passive and active resonant circuits. The passive resonant circuit has a resonant frequency and the active resonant circuit excites the passive resonant circuit at the resonant frequency. A sensor driver drives the active resonant circuit with an RF drive signal, a multiplexing system multiplexes the drive signal such that simultaneously driven key sensors are separated by at least (k−1) keys, and a detector detects a level of RF signal from a driven key sensor for sensing a position and/or velocity of a key.
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公开(公告)号：US20220246122A1
公开(公告)日：2022-08-04
申请号：US17726190
申请日：2022-04-21
申请人： SONUUS LIMITED
IPC分类号： G10H1/055 , G10H1/18 , G10H1/34 , H03K17/972
摘要： A sensing system for a keyboard. Each key sensor comprises passive and active resonant circuits. The passive resonant circuit has a resonant frequency and the active resonant circuit excites the passive resonant circuit at the resonant frequency. A sensor driver drives the active resonant circuit with an RF drive signal, a multiplexing system multiplexes the drive signal such that simultaneously driven key sensors are separated by at least (k−1) keys, and a detector detects a level of RF signal from a driven key sensor for sensing a position and/or velocity of a key.
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公开(公告)号：US20230197044A1
公开(公告)日：2023-06-22
申请号：US18156002
申请日：2023-01-18
申请人： SONUUS LIMITED
IPC分类号： G10H1/055 , G10H1/18 , H03K17/972 , G10H1/34 , H03K17/97
CPC分类号： G10H1/0555 , G10H1/182 , H03K17/972 , G10H1/344 , G10H2220/221 , G10H2220/271 , H03K2017/9706 , G10H2220/275
摘要： A sensing system for a keyboard. Each key sensor comprises passive and active resonant circuits. The passive resonant circuit has a resonant frequency and the active resonant circuit excites the passive resonant circuit at the resonant frequency. A sensor driver drives the active resonant circuit with an RF drive signal, a multiplexing system multiplexes the drive signal such that simultaneously driven key sensors are separated by at least (k-1) keys, and a detector detects a level of RF signal from a driven key sensor for sensing a position and/or velocity of a key.
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公开(公告)号：US20210304718A1
公开(公告)日：2021-09-30
申请号：US17266479
申请日：2019-08-07
申请人： Sonuus Limited
摘要： An electronic drum, comprising: a bottom member; a drum head; a drum sensor comprising: a passive resonant circuit mounted on the drum head and having a resonant frequency; and an active resonant circuit mounted on the bottom member and configured to excite the passive resonant circuit at the resonant frequency; a sensor driver to drive the active resonant circuit with an RF drive signal at the resonant frequency; and a detector to detect a level of RF signal from the driven active resonant circuit for sensing a position and/or velocity of the drum head; and a signal processor, coupled to the detector, configured to process the detected level of RF signal to sense a position and/or velocity of the drum head for determining when the drum head is hit.
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公开(公告)号：US20150170625A1
公开(公告)日：2015-06-18
申请号：US14567672
申请日：2014-12-11
CPC分类号： G10H1/02 , G10H1/0091 , G10H1/0555 , G10H1/348 , G10H2220/505 , H03H7/12
摘要： We describe a position sensor comprising drive electronics to drive a first tuned resonant circuit at a resonant frequency, a moveable mechanical control associated with a second, passive tuned resonant circuit and read-out electronics coupled to the first tuned resonant circuit to sense a position of the control. A first frequency of resonance of the first tuned resonant circuit matches a second frequency of resonance of the second, passive tuned circuit, and the first and second frequency resonance match a resonant frequency of the drive signal. The first tuned resonant circuit has an input coupled to the drive electronics, an output coupled to the read-out electronics and a resonant LC circuit coupled in series between the input and output. The variable output signal is dependent on an amplitude of a signal at the output of the first tuned resonant circuit.
摘要翻译： 我们描述一种位置传感器，其包括驱动电子装置，以谐振频率驱动第一调谐谐振电路，与第二无源调谐谐振电路相关联的可移动机械控制和耦合到第一调谐谐振电路的读出电子器件， 控制。 第一调谐谐振电路的第一谐振频率与第二无源调谐电路的第二谐振频率相匹配，第一和第二频率谐振匹配驱动信号的谐振频率。 第一调谐谐振电路具有耦合到驱动电子器件的输入端，耦合到读出电子器件的输出端和串联耦合在输入和输出端之间的谐振LC电路。 可变输出信号取决于第一调谐谐振电路的输出处的信号的幅度。
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公开(公告)号：US20240045519A1
公开(公告)日：2024-02-08
申请号：US18252410
申请日：2021-11-01
申请人： SONUUS LIMITED
发明人： James Hastings CLARK
IPC分类号： G06F3/0362 , G06F3/02
CPC分类号： G06F3/0362 , G06F3/0202 , A63F13/24
摘要： A method and corresponding system for providing a depressed state signal from a keyboard or button. The method comprises sensing movement of an actuator of the keyboard or button, determining, during depression of the actuator, a velocity of the actuator at a depression sense position of the actuator and at a first time, processing the determined velocity to predict when the actuator will reach a second depression sense position of the actuator at a later point during depression of the actuator, and generating the depressed state signal with a timing based on the prediction of when the actuator will reach the second depression sense position. A complementary method and system provides a released state signal.
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