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7607512 |
Speaker assembly for a structural pole and a method for mounting same
A speaker assembly for a structural pole is provided, as well as a method for attaching a speaker assembly to a structural pole. The speaker assembly is provided with an elongated housing mounted...
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7602282 |
Audio system end of line load module providing a load on the audio circuit in response to a test signal
An end-of-line module provided at the end of the line of an audio circuit provides a load in response to a test signal. The load is detectable by an announcement control system so that a fault...
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7522734 |
Distributed acoustic reverberation for audio collaboration
A distributed acoustic reverberator including a network audio connection between at least two separated locations is provided. When a sound is emitted at one of the locations, the reverberator...
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7492913 |
Location aware directed audio
A directed audio system, a network interface communicatively coupled with a network, and a controller to receive, via the network interface, an estimate for a location from a locating device...
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7474753 |
Sound field control apparatus, signal processing apparatus, sound field control program, and signal processing program
A sound field control apparatus which is capable of adjusting the number of outputs as required. The sound field control apparatus is comprised of a master device, and a plurality of salve devices...
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7474202 |
Bus safety controller method and system
System and method for automatically broadcasting voice-based prompt warnings toward an embarkation and/or disembarkation location at which passengers such as students and others may or will be...
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7469052 |
Portable sound system, apparatus, and method
A portable sound unit is shown having a central case and one or more speakers. Each speaker has tongue rails around a portion of its circumference. The central case includes an openable lid...
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7440750 |
Signal routing for reduced power consumption in a conferencing system
A technique is provided for reducing power consumption of an internally powered console in an audio system through frequency based signal routing. A system employing the technique includes a base...
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7436971 |
Mixing signal-path setting apparatus and program
One or more input channels are selected from among a plurality of input channels, and signals of the selected one or more input channels are mixed into a first output channel. A particular input...
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7433821 |
Methods and systems for intelligibility measurement of audio announcement systems
A measurement system and method combine an audio announcement system with a plurality of spaced apart wirelessly coupled devices which evaluate speech intelligibility of audio output from...
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7426278 |
Sound device provided with a geometric and electronic radiation control
A sound device for carrying out a homogenous sound cover for a public addressed area includes an electroacoustic source network ( 1 ), wherein each electroacoustic source ( 1 ) diffuses a version...
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7408442 |
Programmable event driver/interface apparatus and method
A programmable event driver/interface has timekeeping and scheduling functions and tone and voice capabilities. A software-based interface allows for direct communication with individual...
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7376476 |
Methods for changing time intervals of the occurrence of audio information from local and remote sites
A method of processing audio information for broadcast to an audience can include changing first audio information from occurring in a first time interval to occurring in a second time interval to...
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7359671 |
Multiple channel wireless communication system
A wireless audio distribution system may have a wireless transmitter, responsive to a plurality of audio input channels, for transmitting signals carrying the audio, a receiver, responsive to the...
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7356603 |
Integrated system of loads with multiple public awareness functions
A signaling system may include two subsystems that share a common wiring backbone and provide public awareness functions. The two subsystems may be a public address system and a master/slave clock...
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7343018 |
System of sound transducers with controllable directional properties
The invention relates to loudspeaker systems or loudspeaker columns as used in public address systems and at (pop) concerts. Such systems heretofore possess a frequency-dependent coverage angle and...
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7319763 |
Power amplification for parametric loudspeakers
A power amplifier for a parametric loudspeaker system which utilizes switch-mode power conversion to increase efficiency. The power amplifier is configured to coordinate the switching frequency of...
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7266927 |
Drive-in movie theater with short range sound system
The present invention relates to a drive-in movie theater and/or events center preferably located on top of one or more parking garages located at a shopping mall or other similar complex. The...
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7197148 |
System for controlling remote speakers using centralized amplifiers, centralized monitoring and master/slave communication protocol
An apparatus and method for providing a centralized speaker system that allows multiple speakers connected to a central amplifier speaker line to be monitored and controlled from a central location...
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7170396 |
Addressable smart speaker
An addressable smart speaker for use in a fire alarm system connects to and receives messages over a network, has plural taps for selecting audio power. In response to a command, a selector in an...
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7151910 |
Wireless microphone information displaying apparatus and method thereof
The wireless microphone information displaying apparatus comprise a plurality of wireless microphones having information respectively assigned thereto, a wireless microphone supporting device...
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7148810 |
Evacuation systems providing enhanced operational control
An evacuation system, which provides enhanced operational control to an operator. In an embodiment, each voice point module capable of playing evacuation messages is implemented as an addressable...
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7130430 |
Phased array sound system
An array of speakers are fed from a single source of audio frequency sound but each speaker transmits the sound delayed by an amount which is determined by the distance between a particular speaker...
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7110552 |
Personal listening device for arena events
A method and apparatus for transmitting sound generated at an event to those in attendance at the event is shown. This is accomplished by a system that collects an acoustic audio signal generated...
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7088830 |
Parametric ring emitter
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...
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7068795 |
Public address system and method for an urban transit vehicle
Apparatus and method for allowing an operator of a transit vehicle to make public address announcements to passengers internal and external to the vehicle. The safety of the vehicle and passengers...
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6990382 |
Control system for digital sound effect and the method of the same
A control method for controlling the sound effect system, comprises implanting a control code into a sound effect data that is transmitted to a sub woofer speaker. Then, the sound effect data with...
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6950526 |
Sound masking and paging system
The new speaker system includes masking capabilities, as well as optional paging capabilities and has a speaker mounted so as to be upwardly directed on a support plate or rack within a ceiling...
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6947566 |
Method and apparatus for a portable public address system
An improved light weight, portable public address system configured with high fidelity omni-directional and high wattage directional speakers for both indoor and outdoor use with a wide variety of...
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6862429 |
Audio production, satellite uplink and radio broadcast studio
An audio production, satellite uplink and radio broadcast studio system includes an audio console having a supporting meter bridge and editing unit operative under the control of a central or main...
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6856258 |
Message announcement system
A message announcement system for broadcasting announcements at predetermined locations has an autonomous announcement computer at each predetermined location, wherein a plurality of event...
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6690803 |
Conversation mirror/intercom
An intra-vehicle communication system includes a surface configured to be mounted to a vehicle interior proximate a first occupant wherein the surface is further configured to display an image of a...
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RE38405 |
Enhanced concert audio system
A audio enhancement system and method of use with a sound system for producing primary sound from at least one main loudspeaker located at a main position. The audio enhancement system comprises at...
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6522754 |
Digital vehicle microphone system and method
According to the present disclosure, a digital vehicle microphone system for recording and playback of announcements pertaining to vehicle stops and route information is provided for use over...
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6513622 |
Full-range loudspeaker system for cinema screen
A full-frequency-range cinema loudspeaker system intended or deployment in limited space behind a perforated cinema screen is configured as three modules: (1) a high-frequency module having a...
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6385322 |
Method and device for operation of a public address (acoustic irradiation) system
The invention pertains to a method and a device for operation of a public address system with at least one loudspeaker box and with at least one amplifier, which is connected by means of a...
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6349283 |
Remote control and processing of wireless digital receiver
An integrated receiver mixer system is disclosed wherein the plurality of wireless receivers is remotely controlled, and retained in synchronism, via reference and control signals outputted by the...
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6329908 |
Addressable speaker system
An addressable speaker system in which a plurality of selectively activated speakers are distributed throughout a predefined area and are connected to a central processing unit. The system contains...
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6307482 |
Silenceable speaker with pre-announce tone detection
An alarm signaling device (5) operable to produce an alarm signal and, possibly, communicate emergency announcements when triggered by a signal from a central alarm control panel. The alarm...
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6091826 |
Method for implementing a sound reproduction system for a large space, and a sound reproduction system
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...
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6016353 |
Large scale sound reproduction system having cross-cabinet horizontal array of horn elements
A loudspeaker system having a cross-cabinet horizontal array of loudspeakers for collectively generating a common acoustical wavefront when respective drivers associated with each of the...
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5946401 |
Linear speaker array
A sound delivery system comprises at least one elongated speaker mounting element. A multiplicity of individual speakers are mounted in the mounting element to form a linear array of speakers with...
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5939997 |
Detection method of bus termination
A system for detecting whether a bus used to connect units in an in-flight entertainment system is properly terminated. A detection circuit generates a bus termination signal when a terminating cap...
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5889854 |
Technique for compensating for signal attenuation on a telephone line
An apparatus compensates for an attenuation of a signal on a telephone line in a communication system connected to the telephone line via a transformer. A photo coupler detects a loop current at a...
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5859915 |
Lighted enhanced bullhorn
A sound projection device 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...
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5754663 |
Four dimensional acoustical audio system for a homogeneous sound field
A four-dimensional acoustical audio system utilizes both spatial and temporal signal processing to provide uniform sound throughout a range of ear levels in an enclosure and combines the output of...
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5619582 |
Enhanced concert audio process utilizing a synchronized headgear system
An audio enhancement system and method is provided wherein a wireless headphone system comprises a transmitter and a receiver including a synchronization device which utilizes electromagnetic...
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5576685 |
Sound generation apparatus responsive to environmental conditions for use in a public space
A sound generation device used in a public space generates tone data corresponding to a change in environment such as environmental noise, temperature, brightness, and the like. The sound...
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5521973 |
Transport apparatus for large network telecommunication equipment
A transport apparatus for large network telecommunication equipment, includes a central switch frame for holding electronic equipment, and having first and second switch bays and a main controller...
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5481478 |
Broadcast system for a facility
A broadcast system for a facility including audio and video signal generators that may also include the audio output of a microphone for forming broadcast signals. The broadcast signals include a...
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