公开(公告)号：US09960858B2

公开(公告)日：2018-05-01

申请号：US14608323

申请日：2015-01-29

Applicant: Michiaki Shinotsuka ,  Tsutomu Kawase

Inventor： Michiaki Shinotsuka ,  Tsutomu Kawase

IPC: G01S5/00 ,  H04B11/00 ,  G01S1/72 ,  G01S5/18

CPC classification number: H04B11/00 ,  G01S1/72 ,  G01S5/18

Abstract: A novel positional information transmission system includes a plurality of positional information transmission units. The positional information transmission unit includes a close-range wireless communication unit that performs close-range wireless communication and a sonic wave transmission unit that transmits positional information as a sonic signal used for detecting a position of a receiver that receives the sonic signal based on information transmitted by the close-range wireless communication unit.

公开(公告)号：US09954624B2

公开(公告)日：2018-04-24

申请号：US13836924

申请日：2013-03-15

Applicant: The Board of Trustees of the University of Illinois

Inventor： Ali M. Bazzi ,  Philip T. Krein

IPC: G01P3/44 ,  H04B11/00 ,  H02P21/18 ,  H02P21/26

CPC classification number: H04B11/00 ,  G01P3/44 ,  H02P21/18 ,  H02P21/26

Abstract: A computer-implemented method for estimating a rotor speed of an alternating current (AC) machine is provided. The method includes determining a stator flux signal based on signals of voltage and current inputs to the AC machine, and determining a rotor flux signal of the AC machine based on the determined stator flux signal. The method includes determining an electrical angle signal based on the determined rotor flux signal, and deriving an electrical frequency signal from the determined electrical angle signal. Subsequently, the method includes sampling the derived electrical frequency signal at a predetermined sampling rate, and storing a predetermined number of sample values. The method further includes evaluating a median value of the predetermined set of electrical frequency sample values, determining a slip frequency value of the AC machine, and determining the rotor speed of the AC machine by subtracting the slip frequency value from the electrical frequency median value.

公开(公告)号：US20180109393A1

公开(公告)日：2018-04-19

申请号：US15567332

申请日：2015-07-24

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Robert Campbell

IPC: H04L12/28 ,  G08B27/00 ,  G08B29/18

CPC classification number: H04L12/283 ,  G08B27/005 ,  G08B29/185 ,  H04B11/00 ,  H04B13/00 ,  H04L12/2803 ,  H04L2012/284

Abstract: In an example implementation, a sensor communication system includes a sensor to sense a condition and to include the condition in a message formatted in a communication protocol. The system includes a vibration actuator placed in contact with a building structure and operatively coupled to the sensor. The vibration actuator is to transmit the formatted message through the building structure as a vibration pattern, and an accelerometer is to detect the vibration pattern. A receiver hub coupled to the accelerometer is to decipher the condition from the vibration pattern.

公开(公告)号：US20180091234A1

公开(公告)日：2018-03-29

申请号：US15124578

申请日：2015-09-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chengqi Zhou ,  Hong Wang

IPC: H04B11/00 ,  G06K9/46 ,  H04N1/00 ,  H04N1/64 ,  G10H1/00

CPC classification number: H04B11/00 ,  G06K9/4652 ,  G06K9/4661 ,  G10H1/0008 ,  G10H1/0025 ,  G10H1/0058 ,  G10H2210/056 ,  G10H2210/061 ,  G10H2210/066 ,  G10H2210/145 ,  G10H2210/576 ,  G10H2220/441 ,  G10H2240/171 ,  H04N1/00095 ,  H04N1/64

Abstract: Embodiments of the present disclosure relate to a method and apparatus for transmitting an image. The method includes converting, by a first device, an image to be transmitted into a number of sets of feature data according to a preset conversion rule; performing, by the first device, music composition according to preset music composition rules to obtain a music in accordance with musical tone rules through making each set of the number of sets of feature data correspond to one musical element; and playing, by the first device, the music to a second device. An image transmission manner utilizing a sound wave that is hearable to the human ear may be implemented.

公开(公告)号：US09929603B2

公开(公告)日：2018-03-27

申请号：US14680421

申请日：2015-04-07

Applicant: uBeam, Inc.

Inventor： Meredith Perry

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J50/15 ,  H02J7/02 ,  H04R19/00 ,  H04B11/00 ,  H02J5/00 ,  G10K11/18 ,  G10K11/34 ,  H02J7/00 ,  H03C3/02 ,  H02J17/00 ,  G10K11/26 ,  H03C5/00 ,  H04R17/00 ,  H04R23/00 ,  H02J50/80 ,  H01F38/14 ,  B60L11/18

CPC classification number: H02J50/15 ,  B60L11/182 ,  B60L11/1838 ,  G10K11/18 ,  G10K11/26 ,  G10K11/341 ,  G10K11/346 ,  H01F38/14 ,  H02J5/005 ,  H02J7/0052 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40 ,  H02J50/80 ,  H03C3/02 ,  H03C5/00 ,  H04B11/00 ,  H04R17/00 ,  H04R19/00 ,  H04R23/00 ,  Y02E60/12 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/16 ,  Y02T90/163 ,  Y02T90/168 ,  Y04S30/12

Abstract: A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.

公开(公告)号：US20180078969A1

公开(公告)日：2018-03-22

申请号：US15560927

申请日：2016-03-16

Applicant: BAE SYSTEMS plc

Inventor： LIONEL WILLIAM JOHN KENT ,  COLIN JAMES HARPER

IPC: B06B1/02 ,  H04B11/00

CPC classification number: B06B1/0207 ,  B06B2201/55 ,  H04B11/00

Abstract: There is disclosed an acoustic transducer for communications within an operational bandwidth, the transducer comprising:A signal generator for generating a signal at a centre-frequency within the operational bandwidth;A piezoelectric element having a dielectric constant that varies with temperature;A driving electrode at the surface of the piezoelectric element;A matching network, having a natural frequency at a given temperature, and operable to transfer the signal from the signal generator to the piezoelectric element whilst mitigating electrical loss, the matching network being connected to the driving electrode;Wherein the matching network comprises a temperature compensating capacitor connected in parallel with the piezoelectric element, the temperature compensating capacitor being for counteracting temperature-induced changes to the dielectric constant of the piezoelectric element such that the electrical natural frequency of the transducer is substantially constant over a range of temperatures.

公开(公告)号：US20180077646A1

公开(公告)日：2018-03-15

申请号：US15816580

申请日：2017-11-17

Applicant: Humberto Jose Moran-Cirkovic

Inventor： Humberto Jose Moran-Cirkovic

IPC: H04W52/02 ,  H04W4/06 ,  H04L29/08 ,  H04W4/02 ,  H04L12/28

CPC classification number: H04W52/0225 ,  G06F3/16 ,  G06F3/165 ,  H04B11/00 ,  H04L12/2823 ,  H04L12/2838 ,  H04L67/12 ,  H04L2012/2841 ,  H04L2012/285 ,  H04W4/023 ,  H04W4/06 ,  H04W4/70 ,  H04W52/0267 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/1222 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/166 ,  Y02D70/26

Abstract: A method of interoperating sensing devices and mobile devices to enable mobile devices to act upon physical events detected by sensing devices, the method comprising: a sensing device detecting a physical event through sensor; using speaker, said sensing device broadcasting a representation of said physical event using a data audio signal for its reception by a nearby mobile device through its microphone; said nearby mobile device interpreting and using said data audio signal to A. establish distance to said sensing device; B. register said physical event in database; C. offer services to its carrier by means of a user interface; and/or D. generate and, using speaker, broadcast a command audio signal to be captured by microphone of said sensing device to activate actuator and produce further physical event.

公开(公告)号：US09917653B2

公开(公告)日：2018-03-13

申请号：US15326459

申请日：2015-06-09

Applicant: LG ELECTRONICS INC.

Inventor： Changmok Kim

IPC: H04B11/00 ,  H04W12/06 ,  H04W8/00 ,  H04W48/20 ,  H04W76/02 ,  H04M1/725 ,  H04L5/00 ,  G06F3/0488

CPC classification number: H04B11/00 ,  G06F3/04883 ,  G06F2203/04808 ,  H04L5/0055 ,  H04M1/72519 ,  H04M1/7253 ,  H04M2250/22 ,  H04W4/21 ,  H04W8/005 ,  H04W12/06 ,  H04W48/20 ,  H04W76/14 ,  H04W88/02

Abstract: A mobile terminal and controlling method thereof are disclosed, by which a communication can be performed using a sound wave or an ultrasonic wave. The present invention includes a display unit configured to display information, a microphone configured to receive an input of a sound, and a controller, if a preset user input is received, controlling the microphone to enter a state capable of listening to a communication signal on at least one band of a sound wave and an ultrasonic wave.

公开(公告)号：US09912415B2

公开(公告)日：2018-03-06

申请号：US14078338

申请日：2013-11-12

Applicant: QUALCOMM Incorporated

Inventor： Yossi Tsfaty ,  Nathan Altman ,  Gilad Bornstein

IPC: H04B11/00 ,  H04W76/02 ,  H04W8/00 ,  G01S5/18

CPC classification number: H04B11/00 ,  G01S5/18 ,  H04W8/005 ,  H04W76/10

Abstract: Methods, systems, and devices are described for service discovery and connection establishment of a point-to-point (e.g., device-to-device) wireless communication. Wireless devices may initiate point-to-point communication utilizing ultrasonic signals. A user may initiate a scan for one device to detect, select, and establish a connection with another device, where the scan utilizes an ultrasonic signal. Once connected, the device may create a profile with one anther and/or wirelessly communicate with one another to, for example, exchange data.

公开(公告)号：US20180058208A1

公开(公告)日：2018-03-01

申请号：US15666299

申请日：2017-08-01

Applicant: Limin Song ,  Yibing Zhang ,  Scott William Clawson ,  Katie M. Walker

Inventor： Limin Song ,  Yibing Zhang ,  Scott William Clawson ,  Katie M. Walker

IPC: E21B47/16 ,  E21B47/18 ,  E21B47/00 ,  E21B41/00

CPC classification number: E21B47/16 ,  E21B41/0085 ,  E21B47/0005 ,  E21B47/0006 ,  E21B47/011 ,  E21B47/18 ,  H04B11/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/48

Abstract: A hybrid electro-acoustic system for extending battery life of a downhole wireless telemetry system. The system includes a plurality of battery-powered intermediate communications nodes spaced along a downhole tubular body and attached to a wall of the tubular body, each of the battery-powered intermediate communications nodes configured to alternate between a sleep mode and an active mode and comprising: a power source comprising one or more batteries positioned within a housing; an electro-acoustic transducer and a transceiver, or a separate transmitter and receiver, positioned within the housing; and a topside communications node comprising: a transmitter and a power supply, the topside communications node structured and arranged to send an acoustic signal to one or more of the battery-powered intermediate communications nodes to place same in the active mode; wherein the power supply of the topside communications node is sufficient to enable communications directly with the intermediate communications node most remote from the surface and greater than the battery power provided to each of the intermediate communications nodes.