公开(公告)号：US11616574B2

公开(公告)日：2023-03-28

申请号：US17184446

申请日：2021-02-24

申请人： California Institute of Technology

发明人： Jose E. Velazco

IPC分类号： H04B10/118 ,  H04B10/61 ,  H04B10/50 ,  H04B10/25 ,  H01S5/042 ,  H01Q3/26 ,  G02B27/30 ,  G02B26/08 ,  G01S3/48

摘要： Optical ground terminals (OGT) allowing high optical rate communications for line of sight and non-line of sight operating conditions are disclosed. The described devices include a multifaceted structure where optical telescopes, phase array antennas, and arrays of optical detectors are disposed. Methods to calculate angle-of-arrival based the contributions from optical detectors are also disclosed.

公开(公告)号：US11609608B2

公开(公告)日：2023-03-21

申请号：US17937414

申请日：2022-09-30

申请人： Shari L. Edwards

发明人： Shari L. Edwards

IPC分类号： G06F1/16 ,  G16H10/65 ,  A44C5/00 ,  G06K19/06 ,  G06Q50/26

摘要： A wearable contact tracing wristband has a main body with a QR code, at least one indicator light, a location tracker, and a processor. The indicator light provides a visual indication, such as a red light, of when the user is exposed to the condition and until testing or clearance occurs. A wireless communication module is connected to the processor, for remote and automatic activation of the indicator light.

公开(公告)号：US11606067B2

公开(公告)日：2023-03-14

申请号：US17189141

申请日：2021-03-01

申请人： pSemi Corporation

发明人： Miles Sanner ,  Emre Ayranci ,  Parvez Daruwalla

IPC分类号： H03F1/22 ,  H03F3/193 ,  H03F3/21

摘要： Methods and circuital arrangements for turning OFF branches of a multi-branch cascode amplifier are presented. First and second switching arrangements coupled to a branch allow turning OFF the branch while protecting transistors of the branch from a supply voltage that may be greater than a tolerable voltage of the transistors. The first switching arrangement includes a transistor-based switch that is in series connection with the transistors of the branch. The first switching arrangement drops the supply voltage during the OFF state of the branch and provides a conduction path for a current through the branch during the ON state of the branch. A resistor and a shunting switch are coupled to a gate of the transistor-based switch to reduce parasitic coupling effects of the transistor-based switch upon an RF signal coupled to the branch during the ON state and OFF state of the branch.

公开(公告)号：US11601098B2

公开(公告)日：2023-03-07

申请号：US17214712

申请日：2021-03-26

申请人： pSemi Corporation

发明人： Dan William Nobbe

IPC分类号： H03F1/22 ,  H03F3/45 ,  H03F1/32

摘要： Methods and devices for reducing gate node instability of a differential cascode amplifier are presented. Ground return loops, and therefore corresponding parasitic inductances, are eliminated by using voltage symmetry at nodes of two cascode amplification legs of the differential cascode amplifier. Series connected capacitors are coupled between gate nodes of pairs of cascode amplifiers of the two cascode amplification legs so to create a common node connecting the two capacitors. In order to reduce peak to peak voltage variation at the common node under large signal conditions, a shunting capacitor is connected to the common node.

公开(公告)号：US11539382B1

公开(公告)日：2022-12-27

申请号：US17505329

申请日：2021-10-19

申请人： pSemi Corporation

发明人： Parvez Daruwalla ,  Rong Jiang ,  Sung Kyu Han ,  Khushali Shah

IPC分类号： H04B1/10 ,  H04B1/16 ,  H03F1/08 ,  H03F3/19 ,  H04B1/00 ,  H04B1/04

摘要： Methods and devices to support multiple frequency bands in radio frequency (RF) circuits are shown. The described methods and devices are based on adjusting the effective width of a transistor in such circuits by selectively disposing matching transistors in parallel with the transistor. The presented devices and methods can be used in RF circuits including low noise amplifiers (LNAs), RF receiver front-ends or any other RF circuits where input matching to wideband inputs is required.

公开(公告)号：US11523487B2

公开(公告)日：2022-12-06

申请号：US17322840

申请日：2021-05-17

申请人： SOLUM CO., LTD.

发明人： Jurae Kim ,  Euiseok Kim ,  Semi Lee

IPC分类号： H05B47/185 ,  H04L67/125 ,  H05B45/10 ,  H05B45/20 ,  H05B47/19

摘要： Disclosed is a lighting device. The lighting device includes a light emitting element, a power unit to supply power to the light emitting element, a single communication port and a processor to, when a user input signal to adjust brightness of the light emitting element is received from an external communication device connected by the single communication port, generate a control signal corresponding to the received user input signal, control the power unit to adjust brightness of the light emitting element based on the control signal, and the signal communication port may be connected to the processor via a single communication line.

公开(公告)号：US11510573B2

公开(公告)日：2022-11-29

申请号：US16457642

申请日：2019-06-28

申请人： CALIFORNIA INSTITUTE OF TECHNOLOGY

发明人： Muhammad Mujeeb-U-Rahman ,  Axel Scherer

IPC分类号： A61B5/00 ,  A61B5/1473 ,  A61B5/145 ,  A61B5/1486

摘要： An implantable device having a communication system, a sensor, and a monolithic substrate is described. The monolithic substrate has an integrated sensor circuit configured to process input from the sensor into a form conveyable by the communication system.

公开(公告)号：US11504438B2

公开(公告)日：2022-11-22

申请号：US16656417

申请日：2019-10-17

申请人： CALIFORNIA INSTITUTE OF TECHNOLOGY

发明人： Anupama Lakshmanan ,  Arash Farhadi ,  Suchita P. Nety ,  Raymond W. Bourdeau ,  Mikhail Shapiro

IPC分类号： A61K49/22 ,  C07K14/195 ,  A61K49/00 ,  A61B8/08

摘要： Gas vesicles, protein variants and related compositions methods and systems for singleplexed and/or multiplexed ultrasound imaging of a target site in which a gas vesicle provides contrast for the imaging which is modifiable by application of a selectable acoustic collapse pressure value of the gas vesicle.

公开(公告)号：US11503683B2

公开(公告)日：2022-11-15

申请号：US17322791

申请日：2021-05-17

申请人： SOLUM CO., LTD.

发明人： Jurae Kim ,  Jeonggye Lim ,  Eunji Kim

IPC分类号： H05B45/20 ,  H05B47/175 ,  H05B45/10

摘要： A lighting device is disclosed. The lighting device includes a first light emitting element having a first color temperature, a second light emitting element having a second color temperature, a communication interface, and a processor configured to, when a first user input for adjusting a brightness of the lighting device is received via the communication interface, adjust both brightness of the first light emitting element and the second light emitting element based on the first user input, when a second user input for adjusting a color temperature is received, obtain ratio information of the brightness of the first light emitting element to the brightness of the second light emitting element based on the second user input, and adjust both brightness of the first light emitting element and the second light emitting element based on the obtained ratio information.

公开(公告)号：US11463087B2

公开(公告)日：2022-10-04

申请号：US16945283

申请日：2020-07-31

申请人： pSemi Corporation

发明人： Alper Genc

IPC分类号： H03K17/693 ,  H03K17/76

摘要： Methods and devices to mitigate de-biasing caused by an undesired gate induced drain body leakage current in FET switch stacks are disclosed. The devices utilize diode stacks to generate discharge paths for the undesired current. The disclosed teachings are applicable to both shunt and series implementations of FET switch stacks.