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JP2015037263A |
To improve performance of communication or measurement.A signal processing unit performs either communication with a target device to be communicated with, using a first signal medium, or measurement using the first signal medium. A comm...
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JP5664419B2 |
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JP2015019264A |
To further suppress power consumption of an apparatus by reducing the number of carrier waves used for transmission of a communication signal of a prescribed number of bits.The acoustic communication apparatus includes an extraction sect...
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JP5632737B2 |
The device (11) has a signal generator (13) e.g. piezo-buzzer, comprising a piezo-ceramic disk (14) and arranged on a printed circuit board (18). The board has an opening (21) in an area of the piezo-ceramic disk and/or metal membrane (1...
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JP5582508B2 |
Disclosed are a system and a method for transceiving data in an audio frequency band. The system includes a data input unit to input data for acoustic communication into an audio signal, a transmitting unit to transmit the audio signal i...
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JP5554882B2 |
Provided are an underwater communication device using visible light and an underwater communication method using the same. The underwater communication device using visible light, includes: an input unit converting a data signal received...
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JP2014123789A |
To provide an information terminal that is capable of communication by vibration while avoiding use of vibration in an audible range and can be manufactured at low costs.An information terminal 1 is configured to be able to communicate u...
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JP5540159B2 |
A system for wirelessly obtaining a measurement of a characteristic of a molten metal is disclosed. The system includes a contact block configured to be operatively coupled to a first end of a substantially hollow lance holder. The conta...
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JP5530003B2 |
Systems, apparatuses, and methods for securing wireless communication using an acoustic signal are described. In one method involving a first and second device, the second device generates, when connecting to the first device, connection...
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JP5532900B2 |
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JP5504727B2 |
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JP5487989B2 |
To provide an information transmission device capable of efficient information transmission with high reliability using audio. The information transmission device includes a spread code generation part for generating a plurality of sprea...
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JP5430519B2 |
To estimate an opposing direction between terminals while using general portable terminals, without requiring any infrastructure facility or any special hardware.A search side (a) wirelessly notifies a searched side (b) of a transmission...
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JP5429826B2 |
To provide an ultrasonic communication system that takes into consideration difference in frequency characteristics that microphones of individual mobile terminals have, the ultrasonic communication system being not influenced by a Doppl...
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JP5419447B2 |
A monstatic sodar system using long chirps and send-while-listening techniques employs transmitter-receiver pairs (Tw, Rw; Tv, Rv; Te, Re) that have coincident main lobes (Twm, Rwm; Tvm, Rvm; Tem, Rem). The system uses digital time domai...
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JP5414059B2 |
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JP2014022829A |
To provide an inter-vehicle communication method that, if there is a car without a mounted system in a train, conveyance of information by local communication is performed jumping over the car without the mounted system.A transmission un...
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JP5375027B2 |
To provide a modulation and demodulation system capable of suppressing pitch variation of a signal due to a Doppler shift. A modulation device 2 radiates an ultrasonic wave while approaching a modulation device 3, so a modulated signal a...
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JP5338302B2 |
To suppress power consumption of a power supply in a communication apparatus carried by a diver because a space for mounting the power supply (battery) is limited and therefore a capacity of the power supply is limited. The underwater co...
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JP5324020B2 |
The invention concerns a communication system between a portable unit (1), such as a watch, and a communication terminal (2) such as a personal computer, characterised in that the communication terminal (2) comprises at least means for t...
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JP5315843B2 |
To provide a traffic signal control system, a driving device, a traffic signal control unit, and a signal control determination method by the traffic signal control system, which are excellent in environment-resistant property and high i...
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JP5292893B2 |
To exchange information without disturbing listening of sound. A modulation apparatus generates a waveform obtained by combining a plurality of frequency components. When superimposing information on the waveform, the modulation apparatu...
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JP5256291B2 |
A method of receiving data coded on an ultrasonic signal comprising: detecting said ultrasonic signal using a microphone (4) having its greatest response below 20 kilohertz or a microphone (4) adapted for human speech reception; and deco...
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JP5251572B2 |
To provide a transmission/reception device which contributes to the miniaturization, weight reduction and cost reduction of an apparatus for communicating the signals of the same frequency by both of electromagnetic waves and ultrasonic ...
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JP5251552B2 |
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JP5223614B2 |
A wireless communication system, including: a plurality of wireless communication terminals connected to each other in a wired fashion and configuring a cluster; and a plurality of wireless communication base stations, wherein each of th...
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JP2013120993A |
To reduce the burden of works for searching, locating, repairing and replacing the equipment, when a submarine network terminal (repeater) fails in a submarine network.A submarine network 4 (cable) is laid on the sea bottom 3. A pluralit...
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JP5195637B2 |
A radio communication device for communicating sensor information includes an electromagnetic wave communication unit using electromagnetic waves using the air as a propagation path, an ultrasonic communication unit using ultrasonic wave...
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JP2013005377A |
To provide a mobile terminal device capable of receiving an acoustic ID and appropriately controlling to switch on/off a decode function to decode the acoustic ID into an ID code, in an acoustic communication system for transmitting info...
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JP5106664B1 |
To provide a technique capable of exchanging information between nearby devices without adding a special communication device. A transmission device converts transmission data into a DA converter, a means for acquiring transmission data,...
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JP2012531108A |
A system is provided for establishing a compliance zone and monitoring interactions therewith. The system includes a compliance zone designator and a wearable device. The compliance zone designator transmits an ultrasound signal to estab...
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JP2012223352A |
To provide image information having excellent continuity and real time properties to a reception side unit connected via a wireless communication line.This ultrasonic diagnostic apparatus includes: a transmission data division part 71 di...
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JP2012190328A |
To measure the position of an intruder with a simple constitution in an intrusion detection system for detecting a human action using spatial feature amount.In an intrusion detection system 201, distance measuring equipment 101 includes;...
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JP4999981B2 |
To provide an information reception reporting device and information reception reporting method facilitating obtaining of an acquisition state of information data. This information reception reporting device 1 receives synthesized voice ...
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JP5003578B2 |
Disclosed is a communication network system, which includes a cluster and a base station. The cluster includes plural communication devices installed underwater and a wired connection connecting at least two of the plural communication d...
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JP4939636B2 |
A human body sound transmission apparatus and method for minimizing a signal loss are disclosed. The human body sound transmission apparatus includes: an audio signal transmission unit modulating an audio signal desired to be transmitted...
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JP2012065073A |
To avoid disruption of communication due to deviation of transmission and reception timing by correcting the deviation of transmission and reception timing with a communication partner.A master unit 100 comprises: a piezoelectric element...
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JP2012507916A |
Systems, apparatuses, and methods for securing wireless communication using an acoustic signal are described. In one method involving a first and second device, the second device generates, when connecting to the first device, connection...
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JP4869182B2 |
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JP4856835B2 |
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JP4829810B2 |
To broaden the communicable range of a diver who uses an ultrasonic underwater communication machine. This radio repeater 40 (40A and 40B) for relaying the wireless radio wave communication machine 10 and the ultrasonic underwater commun...
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JP2011229050A |
To avoid communication disruption resulting from misalignment of transmission and reception timing by correcting the misalignment of transmission and reception timing with a communication partner.A slave unit 200 includes: a piezoelectri...
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JP4810092B2 |
A low-voltage transmit/receive switch that acts to protect sensitive low-voltage electronics from high-voltage pulse signals used to drive an ultrasonic transducer. The low-voltage transmit/receive switch comprises a series resistor and ...
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JP4779810B2 |
To provide a method for configuring a submarine sensor network, in which sensor data of a submarine sensor can be easily and stably acquired, and an essential part of the submarine sensor can be surely recovered. The submarine sensor 1 d...
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JP2011188242A |
To reduce noise which may be generated in switching of GND, by eliminating switching of GND.A communication apparatus A(10A) includes: a piezoelectric element unit 18A in which, two terminals are formed by serially connecting an even num...
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JP4699529B2 |
An apparatus and method are provided for transferring data through a submarine hull or other solid boundary using high frequency acoustic signals, so avoiding penetration of the hull or boundary. First and second transducers are mounted ...
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JP4687446B2 |
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JP2011101084A |
To provide a communication device capable of bidirectional communication using ultrasonic waves by a simple configuration.A master unit 10 which communicates with a slave unit 60 by ultrasonic waves underwater includes: a communication u...
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JP2011023923A |
To downsize a communication device, and to reduce power consumption.This communication device 10A communicating with another communication device using an ultrasonic wave as a transmission medium under water includes: a piezoelectric ele...
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JP4622548B2 |
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