Class 369/5 - One of systems having plural concurrent signals (e.g., stereophonic)

Subclass of Class 369 - Dynamic information storage or retrieval
Definition: Subject matter wherein one of the systems provides a plurality
No. of patents: 29
Last issue date: 06/03/2008

Number	Title	Issue Date
7382886	Efficient and scalable parametric stereo coding for low bitrate audio coding applications The present invention provides improvements to prior art audio codecs that generate a stereo-illusion through post-processing of a received mono signal. These improvements are accomplished by extraction of stereo-image describing parameters at the encoder side, whic...	06/03/2008
7343015	Method and apparatus for high fidelity wireless stereophonic transmission utilizing dual frequency carriers A method and system is disclosed for transmitting two related channels of signals through the air. A first channel of signals is modulated with a first carrier frequency, and a second channel of signals is modulated with a second carrier frequency. The modulated fir...	03/11/2008
7340062	Sound reproduction method and apparatus for assessing real-world performance of hearing and hearing aids A sound recording and reproduction system for testing hearing and hearing aids is disclosed. Recordings of sound are made in a real word acoustic environment, for example, which are stored as audio signals. In a testing environment, a plurality of loudspeakers is lo...	03/04/2008
7321531	Apparatus for reproducing data from optical storage medium using multiple detector An apparatus includes a multiple detecting unit having n detectors, and a controller which selects one of the n detectors and controls the selected detector to output a binary signal. In the apparatus, a plurality of detectors are used to detect a signal read from a...	01/22/2008
7289633	System 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
7177420	Carrier with built-in amplification for personal audio device A hand carriable container for a portable personal audio device of the type which is normally listened to with earphones. The container includes: structure for holding the portable personal audio device; a device, separate from the personal audio device, for amplify...	02/13/2007
7138576	Sound 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
7085387	Sound 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
6463014	Reproducing apparatus In a reproducing apparatus of the present invention, an input audio signal is divided into bands and an envelope value of each band is measured. Based on a change of the envelope value, a predetermined sound source is superimposed. Further, according to t...	10/08/2002
5668785	Multiple audio signal recording and reproducing apparatus A recording/reproducing apparatus for recording and reproducing input signals having left and right stereo sounds. The stereo audio components of television signals prior to recording are data compressed and multiplexed. Then the stereo components are rec...	09/16/1997
5347499	Circuit for selectively setting a monaural playback channel in a stereo audio apparatus A circuit selectively sets a left/right monaural playback channel in a digitally signal-processed stereo audio apparatus. The circuit includes a channel selecting signal generator for generating a channel selecting signal to select the channel correspondi...	09/13/1994
5337292	Recording/reproducing apparatus with remote controller A recording/reproducing apparatus is disclosed that is capable of recording an inputted audio signal onto a recording medium. A controlling device is provided which is capable of remote-controlling at least a recording operation of the recording/reproduci...	08/09/1994
5327132	Composite signal generation and decoding in digital signal processing automotive audio system A digital signal processing automotive audio system uses an analog audio source providing stereo output signals. One of the stereo signals is mixed to a distinct frequency band and summed with the other stereo signal to form a composite signal which can b...	07/05/1994
5274618	Test apparatus for an optical recording disc An optical recording disc on which an analog audio signal and a digital audio signal are recorded is tested. The analog audio signal results from FM-modulating 2-channel audio signals, and the digital audio signal results from modulating the same 2-channe...	12/28/1993
5260920	Acoustic space reproduction method, sound recording device and sound recording medium A system for reproducing a sound field simulating a real acousting space includes a sound collecting device, a sound recording device and a sound reproducing device. The sound collecting device includes first and second collection systems, the first colle...	11/09/1993
5126981	Mixed simulcast circuit A mixed simulcast circuit in which the voice signal demodulated in the voice demodulator through the tuner and the voice signal from the outside can be recorded on the recording medium according to the user's desire, then reproduced selectively. The mixed...	06/30/1992
4933921	Signal reproducing apparatus A portable wireless sound reproduction system includes a first portable housing having a sound signal receiving circuit and controls for processing the sound signal into two signals for transmission by two separate sound signal transmitters located in the...	06/12/1990
4829500	Portable wireless sound reproduction system A portable wireless sound reproduction system includes a first portable housing having a sound signal receiving circuit and controls for processing the sound signal into two signals for transmission by two separate sound signal transmitters located in the...	05/09/1989
4763012	Equalizer quick switch An equalizer quick switch is provided which provides a switching interface between multichannel input signal sources, an equalizer, and a multichannel amplifier with multiple inputs. In one embodiment the switching is performed by manually operated switch...	08/09/1988
4509185	Time domain audio panner A time domain panner samples a single analogue audio input signal and digitizes it into a 16-bit linear PCM representation which is fed into a memory array having a plurality of memory locations. A multiplexer feeds this memory array and continuously cycl...	04/02/1985
4306114	Automatic audio mixing selector device An automatic mixing selector device for use with an audio amplifier or tuner for automatic priority selection and digital fading of two or more audio sources using the amplifier and tuner controls. The circuit comprises a priority selector circuit which m...	12/15/1981
4272784	Channel programing apparatus Channel programming apparatus is capable of supplying a first video device, such as a video display, and a second video device, such as a video recorder, each with an individually tuned video signal. The apparatus includes first and second tuner circuits ...	06/09/1981
4250537	Discotheque simulating home entertainment system A home entertainment system and lighting cabinet simulates the sound and lighting effects of a discotheque. Light rays from a bank of differently colored lights are directed both to a mirrored rotating globe and to a rear reflecting panel behind the globe...	02/10/1981
4187395	Stereo sound recording and reproduction apparatus An integrated, self-contained stereophonic sound recording and reproduction system housed within a console having a front desk-like component and a rear storage component. The desk-like component includes a pair of spaced-apart speaker cabinets, each cont...	02/05/1980
4182991	Channel selecting apparatus for use with plural tuning devices Channel selecting apparatus for use with at least first and second tuning devices, each tuning device being responsive to a channel selecting signal supplied thereto for being tuned to a corresponding frequency. At least first and second selectors are pro...	01/08/1980
4151470	Combined portable tape recorder and stereophonic receiver system An acoustic apparatus comprising a detachable combination of a stereophonic radio set and monaural tape recorder is disclosed. The tape recorder operates as a monaural element when decoupled from the stereophonic radio but includes a stereophonic head whi...	04/24/1979
4046973	Combined portable tape recorder and stereophonic receiver system An acoustic apparatus comprising a detachable combination of a stereophonic radio set and monaural tape recorder is disclosed. The tape recorder operates as a monaural element when decoupled from the stereophonic radio but includes a stereophonic head whi...	09/06/1977
4006306	Audio signal processing apparatus Improved audio reproduction apparatus permits upgrading a two channel high fidelity ("stereo") system to four channel ("quadraphonic") capability, while flexibly accommodating varying four channel source signal formats, e.g., four channel discrete, or enc...	02/01/1977
3956591	Two-input automatic source selector for stereo entertainment center An automatic electronic control system for a home entertainment center, the system utilizing audio signal sensors for the preferential selection of a record player or tape deck as a signal source but with provision for returning to a tuner upon the cessat...	05/11/1976

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Class 369/5 - One of systems having plural concurrent signals (e.g., stereophonic)