-
公开(公告)号：US20170325724A1
公开(公告)日：2017-11-16
申请号：US15531982
申请日：2015-12-03
Applicant: The Regents of the University of California
Inventor： Joseph Wang , Amay Jairaj Bandodkar , Patrick Mercier
IPC: A61B5/1486 , A61B5/145 , A61B5/00 , A61B2562/0215
CPC classification number: A61B5/1486 , A61B5/14521 , A61B5/14532 , A61B5/6833 , A61B2562/00 , A61B2562/0215 , G01N33/66
Abstract: A non-invasive epidermal electrochemical sensor device includes an adhesive membrane; a flexible or stretchable substrate disposed over the adhesive membrane; and an anodic electrode assembly disposed over the flexible or stretchable substrate including an iontophoretic electrode. The device includes a cathodic electrode assembly disposed adjacent to the anodic electrode assembly over the flexible or stretchable substrate and includes an iontophoretic electrode. Either the cathodic electrode assembly or the anodic electrode assembly also includes a sensing electrode that includes a working electrode and at least one of a counter electrode or a reference electrode. The iontophoretic electrode in either the anodic electrode assembly or the cathodic electrode assembly that includes the sensing electrode is disposed on the substrate to at least partially encompass the working electrode and the at least one of the counter electrode or the reference electrode. The device includes an electrode interface assembly including independent electrically conductive contacts.
-
32.发明申请公开(公告)号：US20170230769A1
公开(公告)日：2017-08-10
申请号：US15502130
申请日：2015-08-07
Applicant: The Regents of the University of California , San Diego State University Research Foundation
Inventor： Truong Nguyen , Harinath Garudadri , Patrick Mercier , Arthur Boothroyd , Carol Mackersie
IPC: H04R25/00
Abstract: A hearing assistance and/or noise suppression device leverages computing power of an external device with a digital signal processor, such as a special unit that is configured to communicate with a smart device (e.g., a smart phone, smart watch or smart pendant) or a smart phone with a digital signal processor. Methods include having a hearing transducer communicate with and offload computing tasks to an external device with a digital signal processor. Systems include a hearing transducer with transducer circuitry that receives, amplifies and outputs digital signal processed audio from another device. Methods provide self-adjustment and fitting through a touch screen interface, which can be conducted outside of a clinical setting in a real world environment, and method can include remote data collection and communications with clinicians.
-
33.发明申请ELECTRICAL WEARABLE CAPACITIVE BIOSENSOR AND NOISE ARTIFACT SUPPRESSION METHOD 审中-公开电气电容式生物传感器和噪声方法抑制方法公开(公告)号：US20160256111A1
公开(公告)日：2016-09-08
申请号：US15031142
申请日：2014-10-21
Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventor： Chung-Kuan Cheng , Patrick Mercier , Shih-Hung Weng
IPC: A61B5/00 , A61B5/0428
Abstract: A biosensor of the invention is a capacitive noncontact sensor with two sensor channels split into a plurality of physically interdigitated symmetrical electrodes and shield sections. Two capacitive plates are electrically connected to the two sensor channels. The capacitive noncontact sensor is sized and packaged to be worn by a person to place the capacitive plates close to the skin of the person and form first and second channel input capacitors with the skin. A signal reconstruction circuit obtains a bio signal from the first and second channel input capacitors through the electrodes by reconstructing differences in the two sensor channels. The circuit includes different parasitic input capacitance in the two channels to create channel-specific outputs that depend on input coupling capacitance.
Abstract translation: 本发明的生物传感器是具有两个传感器通道的电容式非接触式传感器，该传感器通道分成多个物理交错的对称电极和屏蔽部分。 两个电容板电连接到两个传感器通道。 电容式非接触传感器的尺寸和包装被人佩戴以将电容板靠近人的皮肤，并与皮肤形成第一和第二通道输入电容器。 信号重建电路通过重建两个传感器通道的差异，通过电极从第一和第二通道输入电容器获得生物信号。 该电路在两个通道中包括不同的寄生输入电容，以创建取决于输入耦合电容的通道特定输出。
-
公开(公告)号：US12121318B2
公开(公告)日：2024-10-22
申请号：US17429495
申请日：2020-02-14
Applicant: The Regents of the University of California
Inventor： Patrick Mercier , Jiwoong Park
CPC classification number: A61B5/0024 , A61B5/0028 , A61B5/6802 , H04B13/005
Abstract: A transmitter for a magnetic body area network includes a power oscillator that directly uses a body coil as a resonant element. Shunt transistor circuitry is between the power oscillator and the body coil, the shunt transistor circuitry selectively shunts current from the body coil in response to a data signal provided to the transmitter. Power injection circuitry is synchronized to the power oscillator to selectively inject power into the body coil in response to the data signal. A tuning capacitor array is disposed to tune frequency in the body coil. A frequency-locked-loop responds to a frequency in the body coil and tunes the tuning capacitor array to lock to a carrier frequency. Very high Q coils can be used while achieving high data transmission rates of 5 mbps to 10 mbps. Transmitters and methods are applicable to on-off-key modulation, frequency-shift modulation and amplitude-shift modulation.
-
公开(公告)号：US12023154B2
公开(公告)日：2024-07-02
申请号：US16940356
申请日：2020-07-27
Applicant: The Regents of the University of California
Inventor： Joseph Wang , Amay Jairaj Bandodkar , Patrick Mercier
IPC: A61B5/1486 , A61B5/00 , A61B5/145 , G01N33/66
CPC classification number: A61B5/1486 , A61B5/14521 , A61B5/14532 , A61B5/6833 , A61B2562/00 , A61B2562/0215 , G01N33/66
Abstract: A non-invasive epidermal electrochemical sensor device includes an adhesive membrane; a flexible or stretchable substrate disposed over the adhesive membrane; and an anodic electrode assembly disposed over the flexible or stretchable substrate including an iontophoretic electrode. The device includes a cathodic electrode assembly disposed adjacent to the anodic electrode assembly over the flexible or stretchable substrate and includes an iontophoretic electrode. Either the cathodic electrode assembly or the anodic electrode assembly also includes a sensing electrode that includes a working electrode and at least one of a counter electrode or a reference electrode. The iontophoretic electrode in either the anodic electrode assembly or the cathodic electrode assembly that includes the sensing electrode is disposed on the substrate to at least partially encompass the working electrode and the at least one of the counter electrode or the reference electrode. The device includes an electrode interface assembly including independent electrically conductive contacts.
-
Patent Agency Ranking
公开(公告)号：US20240178884A1
公开(公告)日：2024-05-30
申请号：US18387321
申请日：2023-11-06
Applicant: The Regents of the University of California
Inventor： Shih-Kai Kuo , Manideep Dunna , Dinesh Bharadia , Patrick Mercier
CPC classification number: H04B7/04013 , H04B7/0617 , H04B7/22
Abstract: A beam-steering backscatter circuit in an integrated tag device. The circuit includes an antenna array and SP4T reflector array configured to receive and transmit through the antenna array. A baseband phase-shifting module modulates an incident signal based upon tag data to create an output signal and re-radiates the output signal with a controllable angle of direction through the SP4T reflector array. A phase locked loop synchronized with a wake-up receiver provides an intermediate frequency (IF) clock to the baseband phase shifting-module.
-
公开(公告)号：US11334105B2
公开(公告)日：2022-05-17
申请号：US16099400
申请日：2017-05-18
Applicant: The Regents of the University of California
Inventor： Patrick Mercier , Hui Wang
Abstract: An ultra-low-power voltage reference generator in an integrated CMOS circuit includes a regular MOS transistor reference current source connected to a line voltage and a regular MOS transistor resistor between the regular MOS transistor reference current source and ground. A constant with temperature reference voltage VREF is generated from a terminal inter-connecting the regular MOS transistor reference current source and the regular MOS transistor resistor. An ultra-low-power current reference generator receives a reference voltage and generated ultra-low level current from the reference voltage with a temperature compensated gate-leakage array.
-
公开(公告)号：US20210076988A1
公开(公告)日：2021-03-18
申请号：US16940356
申请日：2020-07-27
Applicant: The Regents of the University of California
Inventor： Joseph Wang , Amay Jairaj Bandodkar , Patrick Mercier
IPC: A61B5/1486 , A61B5/00 , A61B5/145
Abstract: A non-invasive epidermal electrochemical sensor device includes an adhesive membrane; a flexible or stretchable substrate disposed over the adhesive membrane; and an anodic electrode assembly disposed over the flexible or stretchable substrate including an iontophoretic electrode. The device includes a cathodic electrode assembly disposed adjacent to the anodic electrode assembly over the flexible or stretchable substrate and includes an iontophoretic electrode. Either the cathodic electrode assembly or the anodic electrode assembly also includes a sensing electrode that includes a working electrode and at least one of a counter electrode or a reference electrode. The iontophoretic electrode in either the anodic electrode assembly or the cathodic electrode assembly that includes the sensing electrode is disposed on the substrate to at least partially encompass the working electrode and the at least one of the counter electrode or the reference electrode. The device includes an electrode interface assembly including independent electrically conductive contacts.
-
公开(公告)号：US10897240B2
公开(公告)日：2021-01-19
申请号：US16961471
申请日：2019-01-15
Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventor： Xiaoyang Wang , Patrick Mercier
IPC: H03K3/012 , H03K3/014 , H03K5/08 , H03K17/687 , H03K17/0812 , H03K3/0231
Abstract: A fast startup power oscillator transmitter includes a transistor pair that drives a resonant circuit including a tunable capacitance. A capacitor array preferably forms the tunable capacitance. A voltage booster activates the capacitor array. A clamped body bias voltage booster can set the body bias voltage of the transistor pair in one circuit. Control circuitry activates the resonant circuit through a triode-mode switch transistor in response to an input in a range of 0.3-0.6V, and preferably while controlling the substrate bias voltage of the transistor pair to increase transconductance of the cross-coupled transistor pair. In a variation, a circuit pushes a top plate voltage of one of the two capacitors to 2VDD and pulls the top plate voltage of the other to zero to give the oscillator an initial condition. In a variation, a shaped pulse drives the transistor pair to switch to a class D oscillator mode, and the triode mode switch transistor is only turned on when the oscillation signal voltage is in the range of 0.3-0.6V.
-
公开(公告)号：US20200321860A1
公开(公告)日：2020-10-08
申请号：US16843175
申请日：2020-04-08
Applicant: The Regents of the University of California
Inventor： Sally Amin , Patrick Mercier
Abstract: A DC-DC converter converts voltage from a battery source providing a voltage Vin to a lower level. A four-level transistor stack selectively connects an input voltage and flying capacitor voltages to an output inductor. Stress reduction transistors limit the charging of the flying capacitors to Vin/3. The stress reduction transistors can also limit switching transistor voltages to Vin/3. Freewheel switches can be used to limit ringing in the output inductor.
-
-
-
-
-
-
-
-
-
Search Results
43
records
(took 0.021 seconds)
