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Matches 651 - 700 out of 1,838

Document Document Title
JP2011151436A
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 spread...  
JP2011151799A
To provide a signal transmitting apparatus with an electroacoustic signal transmitter.This signal transmitting apparatus includes the electroacoustic signal transmitter which has a metal film piezoelectric ceramic disk in a printed circu...  
JP2011130103A
To provide an information transmission system for efficiently transmitting various information using sound.A transmission-side device includes: a spread code generation part which generates a plurality of spread codes in parallel, a data...  
JP4699529B2  
JP4687446B2  
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...  
JP2011076111A
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 p...  
JP2011041266A
To provide to human body sound transmitting device and a method for minimizing a loss of a signal.The human body sound transmitting device includes a sound signal transmission unit modulating a sound signal to be transferred and transfer...  
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...  
JP4622548B2  
JP2010288246A
To provide an acoustic modulation/demodulation method which uses a sound wave as the transmission medium and enables information transmission with a simple construction.A modulation side modulates a spread code with a data code, and the ...  
JP2010538511A
[Subject] An improved method and a device of sound communication are provided. [Means for Solution] It is an underwater correspondence procedure by establishing a communication channel parameter from a waveform which received the Rink ac...  
JP4593054B2  
JP2010273115A
To obtain a stable and high-security communication relating to a communication technique of sensor information for a body area network.In a sensor node 101, an air/live body switch control circuit 105 controls a transceiver 102 in respon...  
JP2010537535A
It is the method of receiving data coded on an ultrasonic wave signal, and detects an ultrasonic wave signal using a microphone (4) constituted so that a speech of a microphone (4) or a human being with the maximum response characteristi...  
JP2010534995A
The present invention relates to a human body sound wave communication apparatus and a method. If a sound wave signal is transmitted via a human body in the human body sound wave communication apparatus from partner apparatus, A sound wa...  
JP4560858B2  
JP2010204499A
To provide a communication system for improving reliability of data transmission without degrading voice quality of a voice signal by utilizing human auditory characteristics. A communication system includes a transmission device and a r...  
JP4545234B1
[Subject] In the environment where information is transmitted as a sound wave, the possible dispatch equipment of carrying out that it is hard to make people's ear perceive the sound wave for transmitting information is offered. [Solutio...  
JP2010187065A
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 ...  
JP4528365B1
[Subject] In the environment where information is transmitted as a sound wave, the possible dispatch equipment of carrying out that it is hard to make people's ear perceive the sound wave for transmitting information is offered. [Solutio...  
JP2010178255A
To sufficiently ensure safety of a diver even without using a complicated and expensive communication apparatus.In a method for performing underwater communication between one master unit 1M and a plurality of slave units (1Sa-1Sc) by us...  
JP2010527176A
The present invention relates to a human body sound transmitting system which used a single sound source, and a method for the same. In a user's ear field, the 1st high frequency signal is set off against the 1st transmitting means that ...  
JP2010166129A
To transmit data with relatively high reliability by utilizing medium vibrations not using electromagnetic waves. When transmitting information from the information transmitter 200 to the information receivers 100a and 100b positioned ar...  
JP2010149675A
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...  
JP2010139270A
To reduce the restrictions on the travel region of an underwater navigation object. The underwater navigation object 1 can move underwater by power which the object itself possesses and includes a side scan sonar 10C, or the like, for co...  
JP4486922B2  
JP4478851B2  
JP2010124160A
To solve a hidden terminal problem, and to provide a wireless communication system that has higher flexibility in transmission timing of a call signal than the related art, eliminates the need of reception on a basic frame basis, and ena...  
JP2010109719A
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 an...  
JP2010514322A
It includes separating an ultrasonic transmission beam in a multi-beam system, and a method for reducing crossing transmitting beam interference transmitting the 1st ultrasonic beam 1st and 2nd at an angle of positive, and transmitting t...  
JP2010081248A
To provide an acoustic communication system with high reliability and high speed.A plurality of PN signals are mixed with a musical sound signal, and released. When a volume level of the musical sound signal is low, a phase of each of PN...  
JP2010074398A
To perform OFDM demodulation without requiring symbol synchronization.An OFDM modulation/demodulation method in a transmission system for transmitting data from a transmission source to a transmission destination by OFDM modulation/demod...  
JP2010061206A
To provide a technology for converting bar code data into a voice signal, and to provide a method for improving a recognition technology by transmitting/receiving the data as an ultrasonic wave, and maintaining its interchangeability wit...  
JP2010060520A
To provide a modulating/demodulating method for ultrasonic waves, improving a noise-proof property, and to provide a distance detecting method and a communication method.Ultrasonic wave is modulated by transmitting a plurality of ultraso...  
JP2010057187A
To simplify the configuration of an ultrasonic signal communication apparatus.An ultrasonic signal communication apparatus 310A includes: an ultrasonic oscillation unit 318A having at least two resonance frequencies according to oscillat...  
JP2010050504A
To provide a communication system for a diver, stabilizing communication quality, and also to provide a radio relay apparatus.The communication system for a diver has: an information transmission device (diving computers 1A, 1B) attached...  
JP2010051039A
To provide a parametric audio system that includes a carrier frequency sufficiently higher than a carrier frequency of a conventional system, and achieves reduced distortion and improved efficiency.Ultrasonic wave signals are used to tra...  
JPWO2008050694A1
ケーブルや光ファイバーよりも大容量の情報 の伝送に適し、しかも伝送路と電子機器との 結合をコネクタを用いることなく簡単に行う ことができる伝送システムを提供するこ...  
JP2010039706A
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...  
JP2010035135A
To simplify the constitution of an ultrasonic signal transmitter-receiver.The ultrasonic signal transmitter-receiver 410a includes: an ultrasonic vibration part 318A having at least two resonance frequencies according to the vibration mo...  
JP4411136B2  
JP2010016625A
To provide a modulating device, demodulating device, information transmission system, modulating method and demodulating method which have high compression Codec resistance while suppressing a deterioration in acoustic feeling by light o...  
JP2010012969A
To improve convenience when two or more people enjoy diving.The information transmission device for divers which is worn by a diver and to which information to be given to the diver is transmitted, has a display portion, a receiving port...  
JP2010011282A
To provide a modulation apparatus, demodulation apparatus, information transfer system, modulation method and demodulation method which remarkably reduce noise through simple processing and have little restrictions in communication.In th...  
JP4398416B2
A modulation device of the present invention has: a modulation unit (51) for modulating a carrier (42) in an audible sound range by an encoded transmission signal (3) to generate a modulated signal; a masker sound generation unit (44) fo...  
JP4398590B2  
JP4398494B2  
JP2009296617A
To transmit information with audible sound waves based on a level that is not unpleasant to the hearing sense of human beings and to improve the bit rate of transmission information.A modulation apparatus 4B includes: a modulation sectio...  
JPWO2008010306A1
互いに異なる符号でスペクトラム拡散された 複数の超音波を第1および第2の受波器で受 信し、それぞれ第1および第2の受信信号を 生成するステップと、所望の超音波以外...  

Matches 651 - 700 out of 1,838