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Patent Searching and Data


Matches 301 - 350 out of 1,831

Document Document Title
WO/2007/038750A1
A method and system for minimizing the control overhead in a multi-carrier wireless communication network that utilizes a time-frequency resource is disclosed. In some embodiments, one or more zones in the time-frequency resource are des...  
WO2004005953A3
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...  
WO/2007/019992A1
Parameterisation, operational checking or data scanning are signif icant operating steps in process automation. According to an exemplary embodiment of the pr√©sent invention a field device for process automation is stated, which field d...  
WO/2007/009937A1
The invention relates to a method, device and system for bi-directionally communicating between an acoustic danger-warning unit (AGME) and at least one other unit (WE) in a structurally limit space. In order to provide the bi-directional...  
WO2005089225A3
A data communications and underwater release management system for acquiring data from remote positively buoyant instrumentation packages (90) moored underwater through the use of an intervening mechanical release (10) coupled at one end...  
WO2005055442A3
An underwater communications method and apparatus is provided for demodulating communications signals while compensating for the effects of range rate, i.e., relative velocity between the nodes of the communication system. The method of ...  
WO/2006/100660A1
A submergible modular vessel (20, V) comprising a body (22) fittable with at least one cargo module (32, 36, 38) , an anchor system (24) comprising an anchor (76) with a power unit (86) for deploying and retracting the anchor, a control ...  
WO2005006566A3
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...  
WO/2006/025798A1
A method and system for real-time audible monitoring of acoustic signals. The method comprises dividing said acoustic signal into segments of a selected duration; deriving a intermediate signal comprising a concatenation of sections, eac...  
WO/2006/005938A1
A portable sound system for use in portable devices such as laptops or mobile phones is described using the principles of parametric sound generation to create a virtual headphone¬≠-like system using focussable and steerage beams of ultr...  
WO/2005/125064A1
The invention relates to a method for detecting targets emitting wavelength energy into a medium by means of entropy determination at time segments of electric reception signals of a receiver which is arranged in the medium remote from s...  
WO/2005/122446A1
A robust underwater communication system, for communication between an acoustic signal transmitter and a remotely positioned acoustic signal receiver, wherein transmitted data is carried by a plurality of symbols each having two componen...  
WO/2005/093976A1
The aim of the invention is so transmit data and power through a wall (11) by means of structure-borne noise. Said aim is achieved by injecting noise on the front face (11a) of the wall (11) with the aid of a first sound transducer (12) ...  
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...  
WO2005015369A3
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...  
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...  
WO2004080111A3
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...  
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...  
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...  
WO2004001961A3
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...  
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...  
WO2003101185A3
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...  
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...  
WO2004019653A3
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...  
WO2003091869A3
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...  
WO2003087868A3
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...  
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...  
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...  
WO2003096593A3
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...  
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...  
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...  
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...  
WO2003001231A3
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...  
WO2003084081A3
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...  
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...  
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...  
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...  
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...  
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...  
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...  
WO2003003625A3
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...  
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...  
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...  
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) ...  
WO2002047295A3
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...  
WO2003009499A3
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...  
WO2002048991A3
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...  
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...  
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...  
WO2002082696A3
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 potential symbols), each symbol (19) is replac...  

Matches 301 - 350 out of 1,831