Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 451 - 500 out of 1,895

Document Document Title
WO/1999/017473A1
A seismic acoustic signal source (36) includes a hull (30) that has a wetted surface in contact with a body water (16). When underway, the draft of the hull (30) is substantially zero. An acoustic signal generator (36) is provided with a...  
WO/1999/009683A1
A personal underwater communication device which comprises: a display; a memory unit for storing a plurality of preset messages, each message being assigned a common message identification code; means for assigning a unique identificatio...  
WO/1998/045969A1
Disclosed is a communication and alert device for underwater divers, worn on the wrist of the diver or elsewhere and comprising an ultrasound transmitter (36) and receiver (42) operated by a microprocessor (30). A manual control element ...  
WO/1998/032248A1
A signalling system is provided which can be used to update the prices of goods which are electronically displayed on supermarket shelves (1). The signalling system comprises a first signalling device having an input terminal for receivi...  
WO/1998/017526A1
Call, alarm or like device for scuba divers during immersions, made up by a substantially cylindrical hollow container (1), sealed at the opposite ends by two stoppers (2, 3) or the like, within which an ultrasound electromagnetic electr...  
WO/1998/002977A1
The present invention is the emission of new sonic or subsonic compression waves from a region of interference of at least two ultrasonic wave trains (30, 32). In one embodiment, two ultrasonic emitters (20) are oriented so as to cause i...  
WO/1998/002978A1
The present invention is the emission of new sonic or subsonic compression waves from a resonant cavity (80) as a result of interference of at least two ultrasonic wave trains (30, 32). In one embodiment, two ultrasonic emitters (20) are...  
WO/1997/034163A1
The disclosure relates to an emitter and receiver device for ultrasound waves, with a miniaturised battery-operated stand-alone ultrasound emitter which can be fitted in a small capsule housing for the purpose of medical examinations, an...  
WO/1997/031437A1
A digital communications network is provided using digital sonic and ultrasonic communications, i.e., communications using acoustic energy instead of RF energy. The "acoustic spectrum", as opposed to the RF spectrum, is uncluttered and u...  
WO/1997/026551A1
An underwater communications device (10), wherein each device includes: a signal receiver, a signal transmitter, a transducer (12) associated with the signal receiver and with the signal transmitter, and having a first field of view; a c...  
WO/1996/039754A1
A sound system (fig. 2) is provided which utilizes finite amplitude ultrasonic sources. These sources may be used alone or in combination with finite amplitude sonic sources. A controller (90) manipulates the phase, frequency and amplitu...  
WO/1996/013786A1
An electronic process and device are disclosed for carrying out transactions related to lottery and betting games by telecommunications. The object of the invention is to develop an electronic process and device for carrying out transact...  
WO/1995/024658A1
A method and apparatus for sensing one or more physical parameters, including acoustic waves having frequencies from approximately 0 Hz to 15 Hz, electromagnetic waves having frequencies from approximately 0 Hz through 35 Hz and seismic ...  
WO/1995/024171A1
An active pressure fluctuation control system to control noise in ducts including a vibratable element (2) within a duct (1) which can be adapted to vibrate so as to form a cancelling waveform to attenuate sound wave within the duct syst...  
WO/1995/024661A1
An infrasonic frequency resonant circuit and method of use thereof. An electric power distribution system (26, 24, 22, 18, 23) is employed both as antenna for ISF signals and as a source of inductive reactance for a resonant circuit tune...  
WO/1995/022065A1
A general-purpose, adaptable, device for interfacing acoustic and ultrasonic transducers to circuits for high resolution distance and motion measurement, and two-way communication. A generator signal (52) synchronizes to a sensing transd...  
WO/1995/019678A1
Waterborne acoustic signals are received and processed into electrical driver signals to energize a transducer (30) held in selectively controllable vibration-transmitting engagement with a tooth (29) of an underwater diver. The transduc...  
WO/1995/016312A1
An underwater acoustic communications system utilizes phase coherent modulation (56) and demodulation (68) in which high data rates are achieved through the use of rapid Doppler removal, a specialized sample timing control technique and ...  
WO/1995/006309A1
A voice operated remote control system (10) transmits representations of the voice commands to a controlled device (14). The device produces voice signals in response to the transmitted representations. The remote control device, which i...  
WO/1994/010629A1
An underwater local area network (10) for oceanographic observation and data acquisition includes a network node (14) for telemetering data to a final destination and plurality of sensors each of the sensors having an acoustic modem to t...  
WO/1993/014577A1
A sound wave generator (10) is effective for producing ultrasonic sound wave vibrations as well as low frequency vibrations which are offensive to rodents. A wiring conductor (22), which serves as a sonic radiator, is attached to an end ...  
WO/1992/012581A1
In order to establish a voice link between divers under water, the invention calls for ultrasonic transmission using a pulse-modulation technique with constant pulse amplitude, the pulse amplitude being held just below the cavitation lim...  
WO/1991/007818A1
The invention concerns a surface-wave filter in which the acoustic wavepath is reflected in order to reduce the substrate size necessary. The reflections are chosen so that interference due to temperature effects is excluded. The use of ...  
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...  
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), ...  
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...  
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...  
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...  
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...  
JP2020155927A
[Subject] A sound wave dispatch device and a sound wave dispatch program which can guide a guidance candidate, and a sound wave calling method are provided in transfer and a suitable direction of exact information. [Means for Solution] A...  
JP2020155946A
[Subject] Between a terminal unit and an information processor which performs predetermined processing, information is bidirectionally transmitted using a sound wave and it makes it easy to make an information processor perform predeterm...  
JP2020155829A
[Subject] In an information processing system which displays predetermined information on a terminal unit using a sound wave, it makes it easy to display predetermined information on a terminal unit using several mutually different sound...  
JP2020150538A
[Subject] It enables it to notify information to an information terminal like broadcast equipment for disaster prevention in a broadcasting system with which a frequency band which can be used was restricted, inhibiting influence on an a...  
JP2020150390A
[Subject] Let it be a subject to set up an information processor simple by package. [Means for Solution] Sound input part 51 which detects sound to an information processor in which a setup by a user is possible, and it changes into it a...  
JP2020139861A
To accurately detect an abnormality regardless of a change in a wave state. An underwater abnormality detection system 1 sets a target range of a beacon reception signal as a near target range or a distant target range based on the magni...  
JP2020127159A
[Subject] Without making effective frequency bandwidth increase, it is possible to aim at an increase in information transmission capacity, and it provides a transceiver system and a transmitting and receiving method of a broadcast signa...  
JP2020120285A
[Subject] Communication is made possible between apparatus and an external terminal which were stored by operator control panel, without opening a door of an operator control panel. [Means for Solution] One or more controller apparatus 1...  
JP2020113837A
[Subject] Obtain a remote controller which can set up easily a remote controller etc. which carry out remote control of a controlled system device like an air harmony machine, and the controlled system device. [Means for Solution] Remote...  
JP6729169B2  
JP2020092419A
To provide a transmitter-receiver enabling full-duplex communication in different transmission media.A transmitter-receiver 1 includes an electronic chip 2 including: a radio frequency input and output terminal 10 that receives and trans...  
JP6707737B2  
JP2020088575A
To provide an underwater acoustic communication system capable of improving efficiency of a spatial multiplex transmission in water, and provide a receiving device.An underwater acoustic communication system is an underwater acoustic com...  
JP2020077941A
To provide a receiver, acquiring identification information expressed by an acoustic wave output from an output device, capable of reducing erroneous detection of the identification information while suppressing lowering of a detection s...  
JP2020068500A
To provide an underwater communication system capable of appropriately acquiring information based on an information signal from a received signal even if a problem occurs in the received signal due to interference, etc.An underwater com...  
JP2020061617A
To provide an information guidance system that enables a user who do not understand a guidance voice to acquire guidance information without fail.An acoustic signal SM is generated by synthesizing a guidance voice signal SV obtained by c...  
JP2020053945A
To improve the reliability of a broadcasting system using a sound watermark.A broadcasting system includes: a signal processing device 1 for generating a broadcast signal in which identification information is superposed on an acoustic s...  
JP2020507943A
A network service can detect an ultrasonic wave signal with the ultrasonic receiving element of the 1st device. An ultrasonic wave signal may be an ultrasonic output signal transmitted from the audio output element. According to the dete...  
JP6661706B2  
JP2020036265A
To provide a voice communication system that can easily construct a voice failure detection environment and can identify a failure point in a short time.Connection of a plurality of devices 1 to n that input and output a sound source sig...  
JP2020036118A
To restrain decrease in signal-to-noise ratio even if a communication station is upset.An acoustic communication system 1 includes a communication station placed on-water or underwater, an acoustic communication device 3, a positional in...  

Matches 451 - 500 out of 1,895