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WO/1990/002958A1 |
This invention relates to an underwater detector which emits an ultrasonic detection signal by use of a transmitter disposed at a first position in water, detects the underwater condition by receiving a reflection signal resulting from t...
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WO/1989/004033A1 |
A system for transmitting and receiving remote-control signals comprises a portable control desk (1) and, adapted for placing on the controlled object and connected in series, a control command receiver (2), a synchropulse selector (3), ...
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WO/1987/004670A1 |
A sensing apparatus capable of delivering a control signal in response to contact between an element of the apparatus and an external object should respond readily to a predetermined level of contact, and should be sensitive along all po...
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WO/1982/000910A1 |
An ultrasonic communication system capable of wireless installation and supervised operation is achieved by communicating each information bit as two distinct ultrasonic frequencies separated in frequency enough to assure that the signal...
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WO/1981/000496A1 |
A system which automatically or manually signals and senses the event of a person falling overboard from a vessel (12) into water (14) or a SCUBA diver in distress comprises a portable transmitter (16, 72) coupled to a sound-producing tr...
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WO/1980/000051A1 |
A surface acoustic wave device is used as a unique word detector and coherent demodulator for a digital code differential phase-shift signal. The device improves code word detection by providing a coherent reference with a correlation ga...
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JP7480497B2 |
To provide a system that provides information to a user by using a sound wave, and to more appropriately notify the user of necessary information and prevent unnecessary information from being notified to the user.A terminal device has: ...
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JP7462110B2 |
Disclosed is an authentication device. The authentication device comprises: a storage unit for storing authentication information and a plurality of counting information corresponding to a conversion method for converting the authenticat...
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JP7454834B2 |
To provide an underwater communication system that is also suitable for POC and can accurately calculate correlation.An underwater acoustic communication system 10 according to the present invention includes: a reference signal generator...
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JP7452793B2 |
To provide necessary information by limiting receivers to event participants, broadcast receivers, and the like.An information provision support system includes voice code providing means for providing a voice code of no-audible sound, v...
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JP7451372B2 |
To provide a radio terminal, a radio system and a radio communication method, which can manage the leakage of terminal information in a versatile radio wave environment.A radio system 1 which, in a building, provides information to a rad...
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JP2024027450A |
[Problem] To stably perform large-capacity, high-speed data communication over a wide range underwater, such as in the ocean. [Solution] A base station includes a first antenna that transmits and receives signals related to communication...
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JP7417478B2 |
To provide an acoustic communication system, an acoustic transmission apparatus, an acoustic reception apparatus, a program, and a method for setting an embedding strength of acoustic digital watermarking, capable of embedding embedded i...
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JP7411481B2 |
To provide a communication terminal, a communication method and a program which can reduce a processing time.The communication terminal successively receives voice signals which are continuously output from a transmission terminal as com...
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JP7410570B2 |
A system comprising a first electroacoustic transducer connected to an interrogation unit and at least one second electroacoustic transducer connected to a resonator, wherein the first electroacoustic transducer and the second electroaco...
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JP7404831B2 |
To provide a sonar image transmission device and system, a sonar image reception device, a sonar image transmission method, and a program which are capable of efficiently transmitting a sonar image acquired by a sonar.In a sonar image tr...
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JP7397383B2 |
An aspect of the present invention is a Doppler compensation system including: a sound wave receiving element that receives a sound wave transmitted by a transmitter; a ground-speed-related quantity acquisition unit that acquires a groun...
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JP7392522B2 |
To carry out precise remote control of an underwater vehicle without using cable communication.An underwater remote controller carrying out remote control of an underwater vehicle navigating from a remote controller while detecting a nav...
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JP7392343B2 |
To display a specified content without going to a place where a display device is installed and switching the content even when a communication network is not available in a display control system that displays a content on the display d...
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JP7388692B2 |
To provide a wireless communication system that can perform stable wireless communication in water.A wireless communication system 100 that transmits and receives signals among a plurality of terminals 1 including an underwater terminal ...
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JP2023549390A |
An acoustic transponder (1) for an acoustic transmission system, comprising a transponder chip (2) and a piezoelectric element (4) for converting a carrier frequency into voltage, the transponder (1) being miniaturized. An acoustic trans...
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JP7385532B2 |
To provide an acoustic communication system, an acoustic transmission device, an acoustic reception device, a program, and an acoustic signal transmission method that can embed embedded information in an acoustic signal with appropriate ...
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JP7385533B2 |
To provide an acoustic signal receiving method in an acoustic receiving device, a program and an acoustic receiving device which can suppress power consumption by optimizing whether or not to perform decoding process.An acoustic receivin...
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JP7385531B2 |
To provide an acoustic communication system, an acoustic transmission device, an acoustic reception device, a program, and an acoustic signal transmission method that can transmit data having an information amount more than a unit inform...
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JP2023546356A |
The present invention provides a method for digital communication over an acoustic channel. The method includes dividing an operating frequency band of an acoustic channel into a plurality of adjacent non-overlapping subbands of the same...
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JP7368289B2 |
To make it possible to make no noise and ensure confidentiality when voice is used for information transmission.A non-audible-sound generation device 13 generates non-audible-sound voice data whose contents are an acquisition instruction...
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JP2023155540A |
To provide a device capable of realizing underwater wireless communication.An underwater radio communication device includes a host device 1 that transmits radio waves with a frequency within a band of 50 to 500 MHz, and an underwater de...
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JP7363334B2 |
To prevent an execution device that executes predetermined operation contents according to identification information included in a sound wave output from an output device from performing an operation different from an intention due to a...
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JP2023141978A |
To provide a method for reducing an acoustic reflection influence in an acoustic communication test or an acoustic positioning test in a water tank, by which an acoustic reflection influence caused by a water tank side surface can be dim...
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JP2023141678A |
To make it possible to avoid a decline in object searching ability in a sonar system that performs both object searching and communication.A sonar system comprises a transmitting unit that includes: modulation means for generating a tran...
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JP2023135770A |
To provide an information processing system and a movable body that facilitate an appropriate access to a predetermined content.A system 100 includes a drone 110 with a speaker 207, a terminal 120 with a microphone 210, and a management ...
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JP2023131265A |
To facilitate the use of a service using a facility's sound system.An information processing system 1 includes an audio device 20-1, an audio service server 10, and a relay device 30-1. The audio device 20-1 is installed at A station S1 ...
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JP7325378B2 |
To provide a sound-emitting device, a sound forming program, and a sound forming method that can increase an amount of information embedded in a watermarked sound.A sound-emitting device 10 includes a sound-forming unit 11, which forms a...
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JP2023109030A |
To provide an underwater wireless communication device and method capable of suppressing degradation of communication quality due to multipath waves.An underwater wireless communication device 10 provided in a mobile body 2 capable of mo...
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JP2023107404A |
To make it possible to perform transmission processing according to a transmission order while avoiding signal collision even when there is a slave station that does not receive information indicating granting of a transmission right in ...
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JP2023103086A |
To provide a device capable of achieving radio communication between an underwater device and an airborne host device.A radio communication device includes an underwater device 2 configured to transmit radio waves and a host device 1 con...
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JP2023095592A |
To reduce the risk of malfunction, unauthorized use, or the like while making use of a feature of facilitating construction of a geofence of sound waves in a positioning system that transmits identification information by sound waves and...
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JP7301242B1 |
In an acoustic communication system, a first communication device (101) includes a connection request signal generation unit (208) that generates a first acoustic signal for requesting connection to a plurality of second communication de...
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JP2023089689A |
To provide a system, an information processing device, a method, and a program for increasing versatility of radio broadcasting technology using watermark data.A control system includes: an embedding unit that embeds watermark data in fi...
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JP2023088708A |
To suppress an increase in the number of parts for sound wave transmission in a biological information measuring device having a function to transmit acquired biological information as a sound wave.A biological information measuring devi...
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JP2023070920A |
To improve communication efficiency in underwater acoustic communication.An underwater acoustic communication device disclosed includes: a receiving unit (102) that receives an acoustic signal (110) from an opposite node; a transmitting ...
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JP7272033B2 |
To bidirectionally transmit information using sound waves between a terminal device and an information processor for executing predetermined processing to make it easy to make the information processor perform the predetermined processin...
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JP2023519462A |
An acoustic transmission system is provided that can exchange information with volumes separated by sealed and/or electromagnetically opaque barriers. The transmission system has a primary side with a transmitting unit, a receiving unit ...
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JP2023518435A |
A method and system are provided for controlling the reception and transmission of audio transmissions. In one aspect, a method is provided that includes selecting a first audio channel from among a plurality of audio transmissions, and ...
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JP2023057235A |
To provide an information communication system for a railway vehicle which can properly furnish information responding to a getting-on position of a passenger in the railway vehicle.An information communication system 1 for a railway veh...
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JP7259445B2 |
To provide a sound wave transmitting device capable of transmitting correct information and guiding a guiding object person to an appropriate direction, a sound wave transmitting program, and a sound wave transmitting method.A sound wave...
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JP7259435B2 |
To provide an information processing system that uses a sound wave to make a terminal device display predetermined information, the information processing system using a plurality of sound waves differing from each other to make it easy ...
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JP2023512485A |
The present disclosure provides a new and innovative audio transmitter/receiver array for receiving and transmitting audio transmissions containing data. A transmitter/receiver array may include multiple transmitters, such as speakers, f...
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JP2023512483A |
A method and system are provided for detecting and combining audio transmissions containing data. In one aspect, a method is provided that includes receiving a plurality of audio signals from a plurality of receivers. An audio transmissi...
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JP2023511126A |
A method and system are provided for improved device service provisioning. In one aspect, a method is provided that includes determining a plurality of beacon identifiers. A beacon identifier may correspond to a particular ultrasound ser...
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