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| Number | Title | Issue Date |
| 8175289 | Digital audio distribution network A digital audio distribution network includes a plurality of nodes and at least one transmission line that interconnects the nodes to form the digital audio distribution network. A first node in the plurality of nodes receives a user command, encodes the user comman... | 05/08/2012 |
| 8150060 | Surround sound outputting device and surround sound outputting method A surround sound outputting device includes a receiving portion which receives signals on a plurality of channels, a storing portion which stores measuring sound data representing a sound, an outputting portion which outputs a sound produced based on the signals on ... | 04/03/2012 |
| 8098840 | Multi-channel output device for a multimedia device A multi-channel output device for a multimedia device includes a plurality of reception ends, an amplifier having an input end and an output end, a plurality of sound output devices for outputting sound, a first switching unit coupled between the plurality of recept... | 01/17/2012 |
| 8041052 | Circuit for priority selection of audio signals An audio selection circuit. The audio selection circuit includes a control/switch circuit having a first input, a second input, and a first output, and a signal detector module configured to detect an audio signal on the second input. If the signal detector detects ... | 10/18/2011 |
| 8005236 | Control of data presentation using a wireless home entertainment hub A method for controlling presentation of data through a wireless home entertainment hub in a home entertainment system includes obtaining a registration for one or more source devices and for one or more sink devices. An indication is received at the wireless home e... | 08/23/2011 |
| 7986793 | Automatically reconfigurable stereo speaker system An embodiment of an audio system comprises a speaker system configured to automatically change a coupling of an audio speaker from a first channel input to a second channel input if an external speaker is coupled to a first output. In embodiments of the invention, t... | 07/26/2011 |
| 7961895 | Audio interface device and method The invention provides an audio interface device and method to acquire audio signal from either an analog or digital microphone through a common connector. The audio interface comprises a connector, electrically connected with a microphone plugged thereinto, an anal... | 06/14/2011 |
| 7940938 | Sound reproducing apparatus A sound reproducing apparatus which can be relatively inexpensive as a whole and also be simple in construction with reduced wiring even in the case where many speakers are used. Pulse-width modulated (PWM) pulses are generated based on respective audio signals for ... | 05/10/2011 |
| 7738664 | Apparatus for fault detection for parallelly transmitted audio signals and apparatus for delay difference detection and adjustment for parallelly transmitted audio signals Characteristic amounts in each small region of audio signals transmitted in the working system and the standby system are extracted by characteristic amount calculators 6-1, 6-2. A characteristic amount comparator 7 compares the character... | 06/15/2010 |
| 7437122 | Apparatus and method for turning wireless TV on/off An apparatus and method for turning on/off a wireless display device, are provided. The apparatus includes a transmitter to receive image signals to be displayed on the wireless display device and to transmit the received image signals via wireless communication, an... | 10/14/2008 |
| 7424119 | Voice 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 |
| 7370016 | Music distribution systems Music is blanket transmitted (for example, via satellite downlink transmission) to each customer's user station where selected music files are recorded. Customers preselect from a list of available music in advance using an interactive screen selector, and pay only ... | 05/06/2008 |
| 7349546 | System and method for identifying a headset type in an electrical device A system and method are presented for identifying, in an electrical device having an audio interface port, a headset type. The system includes a microcontroller logic unit with an output, connected to a test network, to supply a test voltage. The test network also i... | 03/25/2008 |
| 7342935 | Method and apparatus for sending out multi-channel digital data, method and apparatus for programming the information and method and apparatus for managing multi-channel digital data An information source management system 11 performs inventory management for CDs and a material information management progress programming system 12 performs programming. An material information registration system 13 compresses the musical num... | 03/11/2008 |
| 7293277 | Remote control unit for intelligent digital audiovisual reproduction systems The invention relates to a remote control unit for intelligent digital audiovisual reproduction systems, comprising storage means, payment means, a sound control circuit, display means and a metal chassis wherein said remote control unit comprises a distant radio fr... | 11/06/2007 |
| 7269265 | Method for switching audio signals and the device of the same The method and apparatus are provided for several audio signal processing apparatuses to share at least one audio output device. Several audio signals sent from the audio signal processing apparatuses are received. The DC levels of the audio signals are shifted to a... | 09/11/2007 |
| 7266206 | Channel down mixing apparatus for car audio system The present invention relates to a channel down mixing apparatus for a car audio system for reducing manufacture cost and switching noise by implementing a sub-woofer down mixing portion, a buffer portion and a switching circuit portion to one body with an applicati... | 09/04/2007 |
| 7248107 | Method of controlling a variable gain amplifier and electronic circuit The present invention relates to a method of controlling a variable gain amplifier having at least one semiconductor switch, the amplifier having a first gain when the semiconductor switch is in a first steady state and a first gate voltage is applied to the semicon... | 07/24/2007 |
| 7236600 | Transmission of power and/or signalling between an audio distribution unit and a plurality of remote audio transducers A remote-controlled audio system comprises sets of loudspeakers (14A-14D) connected to power amplifier units (22A-22D) in an audio distribution unit (10) to which several audio sources, such as a compact disc unit, a tape deck, etc... | 06/26/2007 |
| 7230557 | Audio codec adapted to dual bit-streams and methods for use therewith A audio codec includes a first analog to digital converter for producing a first one-bit data stream, a second one-bit data stream is received from a digital microphone. A selection module produces a one-bit output signal that is the first one-bit data stream when a... | 06/12/2007 |
| 7227964 | Audio signal processing apparatus and audio signal processing method Herein disclosed is an audio signal processing apparatus comprising first audio signal processing means for processing an audio signal within a first process time; second audio signal processing means for processing the audio signal within a second process time whic... | 06/05/2007 |
| 7222184 | Method of downloading web content to a network kiosk in advance A method of downloading web content which downloads and stores web content at scheduled times. The method includes the steps of determining a number of web content addresses and corresponding download times, and downloading and storing web content at the web content... | 05/22/2007 |
| 7218708 | Internet facilitated emergency and general paging system A plurality of displaced paging systems can be controlled from a common paging facility via a computer network such as the Internet. Real-time streaming audio can be transmitted, via the network to one or more identified facilities and/or zones and broadcast therein... | 05/15/2007 |
| 7206417 | Wireless digital transmission system for loudspeakers This invention relates to a wireless digital transmission system for loudspeakers comprising: compression means for the file representing the digital audio signal of the “compact disc” type, a transmission device comprising mea... | 04/17/2007 |
| 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 via a master/slave protocol. The centralized speaker system comprise... | 03/27/2007 |
| 7187764 | Automatic speak-up indication for conference call attendees A conference call arrangement, conferencing device, conference unit and a method of managing conference calls. The conferencing device may be a speakerphone with a speak up indicator. Whenever a conference call attendee does not speak loudly enough for remote partic... | 03/06/2007 |
| 7177910 | System and method for communicating in a point-to-multipoint DSL network The present invention is directed to a system and method for communicating in a point to multipoint DSL communication network. Preferably, the point to multipoint communication network is established in the environment of a home or small office, and the invention is... | 02/13/2007 |
| 7167763 | Method and apparatus for providing a graphical user interface for a player/recorder system In a player/recorder system, a graphical user interface method allows central control of one or more tracks of a plurality of audio processing modules. The plurality of audio processing modules are connected to a computer system having a processor and a display. The... | 01/23/2007 |
| 7167569 | Output coupling capacitor free audio power amplifier dynamically configured for speakers and headphones with excellent click and pop performance First and second channel bridge amplifiers are dynamically configured to drive either speakers or headphones. The first channel bridge amplifier includes a first amplifier driving one end of a first speaker through a mechanical switch in a headphone-jack, and a seco... | 01/23/2007 |
| 7164773 | Vehicle electroacoustical transducing An audio system for a vehicle that includes a first passenger location and a second passenger location, the second passenger location situated behind the first passenger location, the audio system including a first directional audio channel signal source; a surround... | 01/16/2007 |
| 7162038 | Audio source selection circuit Audio source selection circuit (QW) for an audio signal processor with inputs for source signals (F1, F2, NA, NB) provided by at least one source (Q1, Q2), with a processing device (V) which forms pairs of signals from the source signals,... | 01/09/2007 |
| 7142678 | Dynamic volume control In accordance with one aspect of the dynamic volume control, an indication that a user desires to input oral data to a system through one or more microphones of the system is received. In response to receipt of the indication, a volume level for audible signals outp... | 11/28/2006 |
| 7142256 | Television control device A system and apparatus for controlling a television. Various embodiments of the apparatus have various components providing compatibility with most brands and types of televisions. ... | 11/28/2006 |
| 7130435 | Component selection control system The invention provides a component selection control system comprising signal output components 2 to 5, signal input components 4, 5, and an amplifier unit 1 having these components 2 to 5 connected thereto. The signal outpu... | 10/31/2006 |
| 7130892 | Method and system for music distribution According to the first aspect, the present invention provides a music distribution method for downloading, in response to a request from a user, music data for one or more musical pieces included in the latest hit charts from a server storing a lot of music data, co... | 10/31/2006 |
| 7110839 | Audio system for minimizing the chance that high power audio signals may be directed to a headphone jack This invention provides a speaker system that minimizes the number of wires used to provide power and audio signal to all of the speakers. This is accomplished by without generating interference noises from shared signal wire implementations. The invention also prov... | 09/19/2006 |
| 7085372 | Method and device for transmitting a transmission signal via a two-core line Method and apparatus for transmitting a transmission signal via a two-core line, in particular a telephone line, in which case, with the aid of corresponding transmission devices (2, 3), two partial signals are generated and are transmitted via a respective c... | 08/01/2006 |
| 7076204 | Multiple channel wireless communication system A wireless transmission device for communicating a plurality of audio streams to remote devices may include a plurality of inputs for receiving a plurality of digital audio streams, a combiner connected to the inputs for combining control codes and the received audi... | 07/11/2006 |
| 7054957 | System for programming hearing aids A hearing aid programming system with a host computer system including a program for programming a hearing aid. The host computer system includes a first communication interface for sending and receiving control and data signals. A hearing aid programming interface ... | 05/30/2006 |
| 7024381 | Approach for renting items to customers According to a computer-implemented approach for renting items to customers, customers specify what items to rent using item selection criteria separate from deciding when to receive the specified items. According to the approach, customers provide item selection cr... | 04/04/2006 |
