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WO/2005/086393A1 |
An upper-order transmitter unit (141) converts an electric signal transferred from an upper-order electronic device (101) into an ultrasonic signal for transmission, which is then transferred to a lower-order receiver unit (142) via a fi...
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WO/2005/046107A2 |
A system and a method for the transmission and reception of digital data wirelessly using acoustic tones comprises an encoder, a data interleaving system, an error correction system, and a decoder. The digital data is decoded by using in...
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WO/2005/015369A2 |
A system and method for predicting passive, high-frequency sonar array performance at any underwater location, implemented as a software package running on a computer. An operator selects an arbitrary geographical location, specifies a s...
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WO/2005/006566A2 |
Data is encoded as a number of audio tones forming a leader tone, a series of tones forming a start symbol and a greater number of data symbols following the start symbol which are each formed of a group of audio tones. The information i...
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WO/2004/080111A2 |
An acoustic transducer arrangement and system and method utilizing the same are presented. The acoustic transducer arrangement includes: an acoustic transmitter assembly including an array of transmitter elements operable to generate tog...
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WO/2004/049604A1 |
A Wireless Underwater Communications System (600) including: a pair of at least half duplex submersible transceivers (610, 620) having adaptive parametric tuning there-between, using at least one transmission frequency (630, 640) of at l...
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WO/2004/023682A1 |
The invention relates to a method of transmitting data using sound waves between an emitting device (2) and a receiving device (1). The aforementioned emitting device is provided with a first electroacoustic transducer (26) for transmitt...
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WO/2004/019653A2 |
A system using the nonlinearity of a propagation medium to demodulate an ultrasonic wave having audio modulated onto the ultrasonic frequency, audio signal processing circuitry providing a delayed audio signal and an envelope signal whic...
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WO/2004/005953A2 |
Dive computers and methods of logging information including position, audio and video information are disclosed. In one embodiment, the invention includes a processor, a global positioning system receiver connected to the processor and a...
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WO/2004/004185A1 |
An apparatus and method for communication using sound waves is disclosed. More particularly, orthogonal frequency division multiplexing scheme is used to transmit (600) and receive (700) digital data on sound waves. In one embodiment, th...
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WO/2004/001961A2 |
A method for sensing acoustic energy as the energy passes from a more (dense10) to a less dense medium (20) while compensating for energy level loses that may have occurred along the acoustic path of the acoustic energy. The method may b...
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WO/2003/101185A2 |
A fishing system buoy (10) has a watertight bulbous shell housing an electronic load (25) and with a center of mass located within a lower half (12) of the shell. The load includes sonar operatively coupled via a microprocessor with a ra...
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WO/2003/101302A1 |
The invention relates to a method of generating a predetermined objective wave field in a medium using a first network of transducers (T1-Tn). The inventive method consists in first using each transducer i of the first network to emit an...
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WO/2003/096593A2 |
An apparatus (200) and method for bi-directional communication using sound waves is disclosed. The invention uses a multi-carrier modulation scheme to transmit and receive digital data on acoustic waves. In one embodiment, acoustic waves...
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WO/2003/093867A1 |
A system comprising at least one transmitter (31) and at least one receiver (4x) for locating an animal, person or object equipped with the transmitter (3) or the receiver (4x) using an ultrasonic signal comprising an identification code...
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WO/2003/091869A2 |
A system for remotely producing a response on a computer using acoustic signaling, comprising; (a) at least one device adapted for producing at least one acoustic tone, and;(b) a computer for receiving said acoustic tone and for producin...
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WO/2003/087868A2 |
A transceiver (101) preferably embedded within a wearable security watch (100 or 200), PDA, or other device which achieves a variety of wireless ultrasonic and/or radio-frequency based functions, including identification and proximity an...
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WO/2003/084104A1 |
The present invention provides a method and calibration unit for calibrating a plurality of receiver channels in a multichannel receiver. The method comprises the steps of: sampling at each of said receiver channels a transmitted wave ha...
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WO/2003/084081A2 |
An underwater communication device (10) in combination with a chemiluminescent glow stick (35). The combination comprises a rigid housing (15) having a seat structure (20) for receiving a chemiluminescent glow stick (35) on an outer face...
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WO/2003/079572A1 |
A system for generating parametric output directly from a prerecorded and error corrected parametric signal (80) for playback in a parametric loudspeaker system. The method includes the step of retrieving a pre-encoded audio signal (80) ...
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WO/2003/052743A1 |
An information transmitting system in which objective information can be transmitted through the medium of voice, and an information encoder and an information decoder for use therein. The information encoder (31) converts inputted chara...
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WO/2003/044422A1 |
The invention relates to a transmitting-receiving unit for a sensor device designed for using sound waves or similarly propagating waves. The transmitting-receiving unit comprises a transmitting element (4), a receiving element (5) and a...
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WO/2003/009499A2 |
A method and apparatus for transmitting information from a conversation in a room to a remote listener comprising selecting a structure (101) in the room which is capable of supporting vibration, selecting an electromechanical force tran...
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WO/2003/003625A2 |
A method of wirelessly communicating between a first and second device is disclosed, as well as devices for carrying out the method. The method has the steps of: transmitting a first set of data from the first device to the second device...
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WO/2003/001231A2 |
An imaging sonar system develops three-dimensional images of the space below, to the sides and forward of a ship (102). Various features permit the system to be used in non-military environments and make possible low cost with substantia...
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WO2002048991A9 |
The invention relates to a method for determining current location-specific information of individuals by using acoustic and/or optical information, whereby a mobile or stationary receiver is assigned to each individual. This receiver co...
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WO/2002/093773A1 |
A system for generating at least one remote virtual speaker location in connection with at least a partial reflective environment (12, 12, 14 or 15) in combination with an audio speaker for creating multiple sound effects including a vir...
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WO/2002/082696A2 |
For digital underwater transmission an information sequence (17) of digital bits is partitioned into a succession of symbols each comprising n bits where n is equal to or greater than one (2?n� potential symbols), each symbol (19) is r...
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WO/2002/082695A2 |
In a digital acoustic transmission device in which a digital information sequence (31) is electrically modulated (22) on a carrier cos $g(v)t, the modulated carrier (23) is prefaced with at least two pulse signals (24) of known timing re...
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WO/2002/078220A1 |
The invention concerns a data transmission method in an acoustic and/or microwave radio system. The invention is characterised in that each time the station receives or generates data messages, it carries out the following steps: if it i...
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WO/2002/049244A2 |
The invention relates to the field of sound engineering and more particularly, to methods for acoustic energetic transmission to biological beings. The object of the invention is lowering of the required power of acoustic vibration sourc...
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WO/2002/047295A2 |
According to said method, each person is allocated a mobile receiver, which contains information stored in a memory. A respective code signal is assigned to said information. One or more first transmitters transmit(s) code signals in res...
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WO/2002/010793A1 |
The invention concerns a device comprising an acoustic source (1) located on the support boat (2) whereof the acoustic pulse transmissions (12) are synchronised by a time base (9). Each diver bears a battery-powered (10) receiver and sig...
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WO/2001/099389A2 |
An ultrasonic communication system includes an omnidirectional ultrasonic transducer (30) including a housing (34) having a closed side (36) and an open side (38) defining an aperture (40) in the housing (34). A diaphragm (42) is mounted...
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WO/2001/095066A2 |
The interactive authentication system allows a consumer to interact with a base station, such as broadcast media (e.g., television and radio) or PC, to receive coupons, special sales offers, and other information with an electronic card....
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WO/2001/070568A1 |
Apparatus (50) for deploying an object to an underwater target position, the apparatus being provided with a beacon to transmit acoustic rays, a plurality of thrusters (56(i), i = 1, 2, ...I, I being an integer) to control positioning of...
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WO/2001/071953A1 |
The invention concerns an installation with piezoelectric element for transmitting or receiving ultrasonic waves in a structure, the electrodes (8) of said element (7) being connected, as the case may be, to a powering circuit producing ...
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WO/2001/061987A2 |
A system for using a watermark embedded in an audio signal to remotely control a device (290). Various devices such as toys, computers, and appliances, equipped with an appropriate detector (292), detect the hidden signals, which can tri...
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WO/2001/057619A2 |
The interactive authentication system allows a consumer to interact with a base station (14), such as broadcast media (e.g., television and radio) or PC, to receive coupons, special sales offers, and other information with an electronic ...
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WO/2001/058080A1 |
The interactive authentication system allows a consumer to interact with a base station, such as broadcast media (e.g. television and radio) or PC, to receive coupons, special sale offers, and other information with an electronic card (1...
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WO/2001/058174A2 |
The interactive authentication system allows a consumer to interact with a base station (11, 12, 13, 14), such as broadcast media (e.g., television (12) and radio (11)) or PC (14), to receive coupons, special sales offers, and other info...
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WO/2001/058175A2 |
The interactive authentication system allows a consumer to interact with a base station (14), such as broadcast media (e.g., television and radio) or PC, to receive coupons, special sales offers, and other information with an electronic ...
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WO/2001/057625A2 |
The interactive authentication system allows a consumer to interact with a base station, such as broadcast media (e.g., television and radio) or PC, to receive coupons, special sales offers, and other information with an electronic card....
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WO/2001/057622A2 |
The interactive authentication system allows a consumer to interact with a base station, such as broadcast media (e.g., television and radio) or PC, to receive coupons, special sales offers, and other information with an electronic card....
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WO/2001/057620A2 |
The interactive authentication system allows a consumer to interact with a base station, such as broadcast media (11) or PC (14), to receive coupons, special sales offers, and other information with an electronic card (10). The electroni...
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WO/2001/058176A1 |
The interactive authentication system allows a consumer to interact with a base station, such as broadcast media (e.g., television (12) and radio (11)) or PC (14), to receive coupons, special sales offers, and other information with an e...
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WO/2001/057624A2 |
The interactive authentication system allows a consumer to interact with a base station, such as broadcast media (e.g., television and radio) or PC, to receive coupons, special sales offers, and other information with an electronic card....
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WO/2001/057623A2 |
The interactive authentication system allows a consumer to interact with a base station, such as broadcast media (e.g., television and radio) or PC, to receive coupons, special sales offers, and other information with an electronic card ...
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WO/2001/052437A1 |
A parametric audio system having increased bandwidth for generating airborne audio signals with reduced distortion. The parametric audio system includes a modulator (112) for modulating an ultrasonic carrier signal with a processed audio...
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WO/2001/037294A1 |
The invention concerns connection systems for a submarine acoustic antenna. It consists in connecting the antenna (201-206) to elements (102) of the sonar by an optical link. A removable transformer (210, 211) enables to separate galvani...
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