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WO/2002/082985A1 |
The invention relates to an information distribution system, especially to an audio information distribution system including one or more local systems, each being intended for personal use or for the use of a small group. In order for t...
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WO/2002/082860A2 |
The invention concerns a method for selectively broadcasting data in a space to people provided with a portable receiver terminal, comprising a wireless broadcast of a flow of digital data from stationary transmission facilities arranged...
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WO/2002/076149A1 |
The invention relates to a method and a device for operating a sound system, whereby signals which are emitted from an analog signal source are amplified, transmitted to the individual loud speakers in a sound system and emitted therefro...
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WO/2002/071799A2 |
A first local controller (30) having a device port coupled to a device control port for communicating with a device to be monitored or controlled, a primary local port for coupling to a first interface port (90) of an interface unit, and...
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WO/2002/043358A1 |
A portable telephone attachment for a person who is hard of hearing preferable to an aural aid for hearing the speech of the party through a portable telephone. The attachment comprises a microphone secured close to the receiver of a por...
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WO/2002/001812A2 |
A communications system comprises at least one beacon device (12, 14) capable of wireless message transmission and at least one portable device (10) capable of receiving such a message transmission. The beacon (12) is arranged to broadca...
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WO/2001/091314A2 |
A codec in a processor-based system handles at least two separate audio programs at the same time. This may be useful, for example, for simultaneously playing one audio program while recording another audio program. A first digital to an...
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WO/2001/063757A2 |
The invention is a new portable equalizer with several audio inputs and one audio output, which separates the incoming audio signals into various predetermined frequency bands in the range of audible frequencies, emphasizes or attenuates...
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WO/2001/062044A1 |
The invention concerns a method for comparing data characterising reference values and data characterising current values of sound-reproducing systems in a system of (n) microphones m¿i? and (p) speakers hp¿j? to control said sound-rep...
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WO/2001/058064A1 |
A method for providing multiple users with voice-to-remaining audio (VRA) adjustment capability includes receiving at a first decoder (14) a voice signal and a remaining audio signal and simultaneously receiving at a second decoder (15),...
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WO/2001/055833A1 |
A system (10) for providing a listener with an augmented audio reality in a geographical environment includes means (11) for determining the geographical position of the listener (eg. GPS) as well as the directional orientation of the li...
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WO/2001/050817A1 |
The invention relates to a mobile amplified enclosure which is powered by an accumulator (a car battery). The invention also relates to a device for immediately supplying sound to locations which do not have an electrical system. Said en...
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WO/2001/043490A2 |
A method of distributing speech which includes the steps of, at a given location, receiving an audio signal, extracting from the audio signal a signal representing speech originating from or near the location, and distributing an electri...
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WO/2001/041499A2 |
The invention relates to the improvement of communication in a vehicle, whereby speech signals generated by passengers in a vehicle are recorded individually by specially arranged microphones (M1-M4). The individually recorded speech sig...
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WO/2001/039370A2 |
A signal processing system comprising companders (450), transform engines (410), calibrators (420) and statistical engines (415) for controlling the compression/expansion of input signals in accordance with at least one user-set parameter.
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WO/2001/008449A1 |
The invention concerns a method for the reproduction of audio sound using ultrasound loudspeakers as well as a construction type of the loudspeakers and their application. A method and device for the reproduction of audio sound using an ...
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WO/2001/006475A1 |
The present invention relates to an audio signal sound diffusion system for diffusing, e.g., alarm signals, pre-recorded signals and microphone signals over wide areas. According to one of its aspects, the present invention relates to an...
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WO/2000/078092A1 |
The present invention relates to a loudspeaker module (1) for high-quality vocal and musical reproduction, wherein said module includes a direct-radiation main electrodynamic head (2) for converting the electrical signal into an acoustic...
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WO/2000/056119A1 |
A programmable speaker (20) uses characterization data stored within the memory (24) of the speaker and digital signal processing (DSP) (32) to digitally perform transform functions (T) on input audio signals to compensate for speaker re...
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WO/2000/031891A1 |
The invention relates to a method for amplifying a signal in an amplifier for a teleloop system, the method comprising generating the output signal by means of pulse width modulation. The invention further relates to a teleloop system co...
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WO/2000/018188A2 |
A public address apparatus comprises a number of sounders each provided with storage means in order to store a number of pre-recorded messages. A central control unit is also provided arranged to send control signals to each of the sound...
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WO/2000/014996A1 |
Acoustical diffuser apparatus for supporting and enhancing the performance of speakers (110, 214, 1020). A preferred apparatus includes a diffuser panel (10, 40, 60, 70, 540, 730, 1010, 1012) that has an outwardly facing non-planar diffu...
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WO/2000/014999A1 |
Acoustical housing (2010, 3010) for supporting and enhancing the performance of speakers (110, 214, 2044, 3090, 4090). A preferred apparatus includes a support well (2012, 2012') that is fabricated from acoustically absorptive material a...
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WO/2000/011911A1 |
A sound emitting device for providing at least one new sonic or subsonic frequency as a by-product of emitting a waveform of at least two ultrasonic frequencies whose difference in value corresponds to the desired new sonic or subsonic f...
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WO/1999/053612A1 |
The present invention is a method for mixing audio signals based on the preference from hearing impaired listeners, as well as non-hearing impaired listeners, without forcing hearing impaired individuals to employ special hearing-impaire...
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WO/1999/051010A1 |
System for distributing environmental sound/paging via telephone extensions of a PABX, comprising a base station (2) serially connected to the PABX and the lines of the telephone extensions. The base station (2) injects a frequency-modul...
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WO/1999/042984A1 |
A dot matrix display system made up of light emitting diodes (LEDs), in which one or more LEDs (50) are modulated and encoded with audio information or messages, is disclosed. The system has a LED dot matrix display panel with an interfa...
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WO/1999/041880A1 |
A computer network teleconferencing system is provided in which audio signals are coupled to or associated with source indicators (332a and 332b), such as source addresses in TCP protocol packets. Three-dimensional spatialization transfo...
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WO/1999/035351A1 |
Apparatus for supporting an acoustical diffuser panel within a structure. A preferred apparatus includes a rigid support member fabricated from an acoustically absorptive material. The support member has a bottom and upstanding side wall...
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WO/1999/033323A1 |
A speakerphone for multi-way conference calling is provided, which incorporates one or more digital wireless communication interfaces, preferably cordless handsets. The device operates in full-duplex mode. A plurality of analog-to-digita...
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WO/1999/022549A1 |
A public addressing system comprising a sound signal source for outputting a sound signal, an intensified sound source for receiving a sound signal from the sound signal source and radiating an intensified sound, a controlled sound sourc...
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WO/1999/017585A1 |
A monitor for a therapeutic device such as a cochlear implant monitors the leakage RF signals between the external and the internal components. In one embodiment, absence of RF signals is interpreted by the monitor as being indicative of...
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WO/1999/009787A1 |
This invention concerns a distributed stereo audio system (1). Distributed stereo audio systems are used to provide stereo sound to several rooms or areas from a single source of signal. The system includes two or more speakers (2, 3) fo...
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WO/1998/055709A1 |
An acoustical diffuser is disclosed for diffusing sound. A preferred diffuser includes a first fibrous material, a first separator layer, a diffuser material, a second separator layer, a second fibrous material and an acoustically transp...
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WO/1998/049868A1 |
A sound projection device (10) for use in speaking to one or more specific persons on a selective basis, the device including a housing having a directional aspect for aiming the housing at a target area, a gripping handle (14) coupled t...
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WO/1998/034697A1 |
An interactive audience participation system (10) which utilizes audio command signals, such as loudness or sound intensity, transmitted by different audience groups.
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WO/1998/013942A1 |
An improved loudspeaker system for a passenger vehicle such as an automobile is disclosed. The system comprises a transducer (112) capable of being excited by applied electric potential and electronic means that is electrically connected...
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WO/1998/012837A1 |
The invention relates to an information distribution system with a plurality of stations (100, 102, 104) and at least one shared resource (120, 122), such as an audio channel. Access to a shared resource is managed in a distributed manne...
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WO/1997/033450A1 |
A method and a system for audio communication between a plurality of users at a plurality of sites (12, 14, 16) utilizes a set of audio input sensors (22, 24, 26) at each site (12, 14, 16). Each set of audio input sensors (22, 24, 26) bi...
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WO/1997/026774A1 |
An apparatus comprising a holder (5), a sound pick-up device with a wavelength within a predetermined range, and means for immobilising the device relative to the holder (5). The immobilising means consist of a vibration absorbing materi...
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WO/1997/013239A1 |
A message output controller (103) which receives continuous pre-recorded advertising messages from a master message playing device and console (101). The system incorporating several controllers (103) and a single console (101) is intend...
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WO/1997/004617A1 |
A personal listening device includes an amplifier with an automatic gain control circuit for automatically limiting at the amplified output the amplitude of electrical signals supplied to the signal input. A directional microphone is con...
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WO/1997/003438A1 |
A method for making public announcements in a space (101) using n speakers (102) after having determined the impulse response hij(t) between a plurality of calibration points j belonging to said space and each speaker i. To transmit an i...
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WO/1996/036109A1 |
A distributed self-adjusting loudspeaker system wherein each master loudspeaker unit includes self-contained circuitry (14) which senses ambient noise near each master loudspeaker (16) immediately prior to or during an announcement and a...
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WO/1996/032804A1 |
The invention relates to a voice communication device (20) and to a method of recording and transmitting voices and replaying the voices in full duplex. The invention relates more specifically, but not exclusively, to a conference teleph...
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WO/1996/031086A1 |
A loudspeaker has a digital input signal port connected to a digital interpolator to increase the effective sampling rate whose output is fed to a signal delay and magnitude detector after which the short-term dynamic range of the input ...
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WO/1996/029779A2 |
The invention relates to a method for implementing a sound reproduction system for a large space, and a sound reproduction system. In accordance with the invention, a) loudspeaker units (LU) are placed in different parts of said space, a...
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WO/1996/021380A1 |
A method and apparatus for mounting and dismounting an overhead bowling scoring monitor, includes a support member positioned at the overhead location for the bowling scoring monitor. A lifting mechanism is provided having an elongated l...
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WO/1996/017140A1 |
This invention relates to a method of using a sound arrangement comprising an essentially plane surface, the effective area of which is at least 5 square meters, and which is provided with loudspeakers to the number of at least ten per s...
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WO/1996/008759A1 |
A personal digital assistant module (10) with a local CPU (11), memory (13), and I/O interface (16) has a host interface (29) comprising a bus (26) connected to the local CPU (11) and a connector at a surface of the personal digital assi...
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