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Class 381/85 - Speaker or channel switching


Subclass of Class 381 - Electrical audio signal processing systems and devices
Definition: Subject matter having provision for changing audio signal
No. of patents: 48
Last issue date: 02/07/2012


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NumberTitleIssue Date
8111837Data-driven media management within an electronic device
A method and apparatus for intelligently routing and managing audio signals within an electronic device is disclosed. The routing is responsive to a set of logical and physical policies which are stored in data tables which can be updated as needed. ...
02/07/2012
7424119Voice matching system for audio transducers
A method and apparatus are provided for matching an output of an auxiliary signal transducer with a reference signal transducer where the auxiliary signal transducer and reference signal transducer receive audio signals from a common signal source along different re...
09/09/2008
7362658Insect repelling system using feedback
An insect repelling system includes (1) a microphone for converting pressure waves generated by a flying insect flapping its wings into electrical signals, and (2) a speaker for generating pressure waves toward the flying insect based on the electrical signals. ...
04/22/2008
7289633System and method for integral transference of acoustical events
A sound system for capturing and reproducing sounds produced by a plurality of sound sources. The system comprises a device for receiving sounds produced by the plurality of sound sources and converting the separately received sounds to a plurality of separate audio...
10/30/2007
7272232System and method for prioritizing and balancing simultaneous audio outputs in a handheld device
A system and method for prioritizing multiple audio sources and balancing them in a single combined output in a handheld device. Audio sources are sensed and combined with the level of each source subject to adjustment by an attenuator/amplifier. A priority logic un...
09/18/2007
7197148System 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 via a master/slave protocol. The centralized speaker system comprise...
03/27/2007
7151970Multiple audio DACs with PC compatibility
Multiple audio digital to analog converters (DACs) are provided to convert multiple digital audio streams to analog audio signals concurrently in a personal computer. Different digital audio streams are routed to each DAC and audio output device depending on priorit...
12/19/2006
7138576Sound system and method for creating a sound event based on a modeled sound field
A sound system and method for modeling a sound field generated by a sound source and creating a sound event based on the modeled sound field is disclosed. The system and method captures a sound field over an enclosing surface, models the sound field and enables repr...
11/21/2006
7099483Sound control system, sound control device, electronic device, and method for controlling sound
A sound control system includes a plurality of electronic devices connected to a communication network, each of the electronic devices being capable of independently producing sound from connected speakers, and a sound control device transmitting control signals for...
08/29/2006
7085387Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources
A sound system for capturing and reproducing sounds produced by a plurality of sound sources. The system comprises a device for receiving sounds produced by the plurality of sound sources and converting the separately received sounds to a plurality of separate audio...
08/01/2006
7069222Method and system for consecutive translation from a source language to a target language via a simultaneous mode
A consecutive, simultaneous translation method and system for use in courtroom and other settings to permit accurate and discrete translation from a source language to a target language. In its most basic form, the method involves providing a translator with a recor...
06/27/2006
7050591Acoustic output processing apparatus
Acoustic outputs from an audio system and various acoustic output devices are produced from a speaker, and a sound which a user desires to hear clearly is automatically selected and corrected with emphasis. A TV sound, an acoustic guide of a navigation system, and a...
05/23/2006
6931136Infrared emitter
An infrared emitter comprises a preamplifier, an infrared RF emitter, an infrared channel controller and a photodiode emitting-medium. With the emitter, by switching between two channels with an infrared channel controller, and by the mode of arrangement of a plural...
08/16/2005
6813363Procedure for setting a hearing aid, and hearing aid
An in-the-ear hearing aid having multiple directional microphones connected to a signal processing unit. The connection of the microphones can be reversed by a selector switch to selectively switch the hearing aid between a left-ear configuration and a right-ear con...
11/02/2004
6658274Cellular phone voice interface structure
A voice interface structure for a cellular phone that permits two-way operation or can be provided at where opposite to the keypad of the cellular phone, wherein, both of the voice interface and control keypad are arranged in two-ways or facing away from ...
12/02/2003
6643376Method and apparatus for individual control of audio to loudspeakers located from a central control
In a home or business where there is a central sound source for a stereo and one or more sets of loudspeakers which are located remote as in different rooms from the sound source. A volume control switch is mounted in conjunction with each set of loudspea...
11/04/2003
6529969Reception method and apparatus for searching various first and second source devices apapted to send data signals to analog and optical input terminals
A reception apparatus or transmission and reception apparatus has a plurality of input terminals, and a plurality of apparatus are connected by a chain connection to a predetermined one of the input terminals. The input terminal at which the apparatus is ...
03/04/2003
6329908Addressable 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 multiple RF antennas that are capable of broadcasting and...
12/11/2001
6321278Automatically detecting a connection into a computer system standardized connector for disabling a front speaker
A computer system audio circuit is connected to a sound device, a combination game/MIDI/line-in/line-out/headphone jack, and internal loudspeaker. The circuit routes audio signals to a headphone, when the headphones are plugged into the headphone connecto...
11/20/2001
6104283Pest animal repulsing apparatus
The apparatus according to the present invention is provided with two or more output systems to which transducers are connected, a source output on/off control unit that turns on/off the output from a source based upon the output from a random signal gene...
08/15/2000
6052471Smart audio receiver that automatically select an input audio source
Receiver control circuitry of a receiver automatically detects, selects, and enables a priority signal provided to the receiver from a plurality of audio and/or visual source devices. Upon the user starting a source device that serves as a potential sourc...
04/18/2000
6052472Multi-functional audio and video control box
The subject invention relates to a type of multi-functional audio & video control box, comprising such components as an antimagnetic speaker box and several sets of audio/video selector whereby an audio/video connection switch box and an audio input/outpu...
04/18/2000
5887067Audio communication system for a life safety network
There is provided an audio communication system for a life safety system. The audio communication system includes an audio data line having a plurality of audio channels for transmitting audio data and a CPU for controlling the transmission of the audio d...
03/23/1999
5761320Audio distribution system having programmable zoning features
A signal distribution and communication arrangement includes an electronic processor-based master control unit which controls the broadcast of different types of signals through speakers located in various zones. The system includes a telephone interfaced...
06/02/1998
5751818Circuit system for switching loudspeakers
A circuit system for selectively switching between main and remote loudspeakers includes a pair of input terminals for applying an input audio signal to the loudspeakers. A first selector switch contact is provided in series with the main loudspeakers. A ...
05/12/1998
5652566Alarm system
A redundant alarm system including a central controller that interfaces with a first alarm, a second alarm, a visual indicator and an acoustic sensor. When an alarm condition exists, the controller activates the primary alarm causing the primary alarm to ...
07/29/1997
5635912Audio system alarm interface
An interface that connects a conventional auto alarm with the audio system of that auto, specifically to the amplifier for the sub-woofer(s), which is connected to low frequency producing speaker(s). Woofer and Sub-woofer bass frequencies are capable of p...
06/03/1997
5577128Audio distribution system with controllable volume override
A signal distribution and communication arrangement includes a main control unit remotely located and electrically coupled to a volume control panel. The volume control panel is located near a speaker, and the main control unit sends substantially continu...
11/19/1996
5526434Audio signal output device
In an audio signal output device, when muting audio signals outputted from audio signal output terminals, a ground terminal provided for the audio signal output terminals is brought into an open state in association with the muting action, so that the aud...
06/11/1996
5440644Audio distribution system having programmable zoning features
A signal distribution and communication arrangement includes an electronic processor-based master control unit which controls the broadcast of different types of signals through speakers located in various zones. The system includes a telephone interfaced...
08/08/1995
5426706Remote simultaneous interpretation system
A remote simultaneous interpretation system particularly suitable for oral communication between a doctor and patient who do not speak a common language includes a user station equipped with a first and second headsets and microphones, a remote simultaneo...
06/20/1995
5363434Audio distribution system
A signal distribution and communication arrangement controls the broadcast of different types of signals through speakers located in various zones. The system includes a telephone interfaced with a door speaker controller to allow communication between th...
11/08/1994
5237619Sound mixer with band separation
In a mixer there is a plurality of preamplifiers followed by a plurality of tone control groups connected to a plurality of voltage followers to which a series of active filters is connected, for selecting frequency bands of signals. Then a plurality of a...
08/17/1993
5175771VCA Decoding scheme for multiple VTR configuration of an audio for video mixer
An audio mixer system for use with a parallel editor interface is disclosed. Use of a configuration selector to select a desired configuration of a plurality of multichannel devices is disclosed in order to enable such various configurations and reconfigu...
12/29/1992
5165097Controller for acoustic apparatus
A surround system comprising front, center, and rear amplifiers which respectively drive front, center and rear speaker units. The system operates in a surround sound environment with low impedance (4Ω) speaker units. When high impedance speaker units ar...
11/17/1992
5161198Mobile radio audio system
An audio system for use with a mobile radio. More particularly, a microprocessor controlled audio system capable accepting multiple audio input signals and providing an amplified audio signal to a local speaker and a remote speaker without the use of tran...
11/03/1992
5153914Sound equipment system
In a sound system having a sound source for generating sound signals, a low-impedance amplifier for amplifying the generated sound signals, and high-impedance loudspeakers for reproducing audible sound from the amplified sound signals, an impedance conver...
10/06/1992
5131048Audio distribution system
A signal distribution and communication arrangement controls the broadcast of different types of signals through speakers located in various zones. The arrangement includes an audio receiver circuit which responds to a music signal from an external music ...
07/14/1992
5034808Unified automatic video and audio signal control and distribution system
A video and audio signal control and distribution system for mobile use includes an audio select logic controller for selection and distribution of one of an AM/FM radio signal, a video tape audio track signal and a microphone signal based on a hierarchic...
07/23/1991
4888806Computer speech system
A computer speech system for digitally storing and reproducing representations of human speech. An analog waveform representative of a segment of speech is compressed for storage by storing companded differences between adjacent local maxima and minima of...
12/19/1989
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