Patent application number | Description | Published |
20080273712 | DIRECTIONALLY RADIATING SOUND IN A VEHICLE - A vehicle loudspeaker system in a vehicle including directional loudspeakers. One directional loudspeaker radiates sound at a first seating position and another loudspeaker radiates sound at a second seating position. The directional loudspeakers may be used with other vehicle loudspeakers to control spatial perceptions. | 11-06-2008 |
20080273713 | SYSTEM AND METHOD FOR DIRECTIONALLY RADIATING SOUND - An audio system for a vehicle having a plurality of seat positions includes, at each seat position, first and second directional loudspeaker arrays. Each array is driven by audio signals to radiate greater acoustic energy corresponding to the audio signals to the expected position of the head of a listener at a first seat position than to an expected position of the head of the listener at a second seat position. The first and second directional loudspeaker arrays comprise different numbers of acoustic drivers. | 11-06-2008 |
20080273714 | SYSTEM AND METHOD FOR DIRECTIONALLY RADIATING SOUND - An audio system for a vehicle has at least one source of audio signals. A respective directional loudspeaker array is mounted at each seat position and coupled to the at least one source. The at least one source includes a microphone that detects speech from an occupant of the first seat position. Processing circuitry receives signals from the microphone that correspond to the detect speech and drives each second respective loudspeaker array at the other seat positions to radiate acoustic energy corresponding to the detected speech. The processing circuitry processes magnitude and phase of the signals from the microphone to each second directional loudspeaker array so that each second directional loudspeaker array directionally radiates first acoustic energy to the seat position at which the second directional loudspeaker array is located and so that second acoustic energy radiated from the second directional array to the first seat position is less than the first acoustic energy according to a predetermined criteria. | 11-06-2008 |
20080273722 | DIRECTIONALLY RADIATING SOUND IN A VEHICLE - A vehicle loudspeaker system in a vehicle including directional loudspeakers. One directional loudspeaker radiates sound at a first seating position and another loudspeaker radiates sound at a second seating position. The directional loudspeakers may be used with other vehicle loudspeakers to control spatial perceptions. | 11-06-2008 |
20080273723 | SYSTEM AND METHOD FOR DIRECTIONALLY RADIATING SOUND - A method of operating an audio system that provides audio radiation to a plurality of listening positions includes providing at least one source of audio signals. At each listening position, at least one array of speaker elements is provided. A filter is provided between the at least one source and at least one of the speaker elements at a first listening position. The filter is optimized so that the filter reduces acoustic energy radiated from the first array to at least one other listening position of the plurality of listening positions, compared to acoustic energy radiated from the first array to the first listening position. | 11-06-2008 |
20080273724 | SYSTEM AND METHOD FOR DIRECTIONALLY RADIATING SOUND - An audio system for a vehicle having a plurality of seat positions includes a plurality of sources of audio signals. Respective directional loudspeaker arrays are mounted at the seat positions. Any of the sources are selectable to any of the seat positions through control circuitry in response to an input from an occupant of the vehicle. Processing circuitry is coupled to the control circuitry and is between the plurality of sources in each respective directional loudspeaker array. | 11-06-2008 |
20080273725 | SYSTEM AND METHOD FOR DIRECTIONALLY RADIATING SOUND - An audio system for a vehicle has at least one source of audio signals. At least one array of speaker elements is located at each seat position that radiates within a range of bass frequencies. For each at least one array, the speaker elements receive a common audio signal, and a respective filter is disposed between the common audio signal and each of the speaker elements. Each respective filter processes magnitude and phase of the common audio signal independently of each other respective filter to thereby define a directional audio radiation from the at least one array. | 11-06-2008 |
20100158263 | Masking Based Gain Control - Interfering signals that may be present in a listening environment are masked by reproducing a desired signal in a listening environment, determining a masking threshold associated with the desired signal, identifying an interfering signal that may be present in the environment, comparing the interfering signal to the masking threshold, and adjusting the desired signal over time to raise its masking threshold above the level of the interfering signal. | 06-24-2010 |
20100232617 | MULTI-ELEMENT ELECTROACOUSTICAL TRANSDUCING - An acoustic apparatus including circuitry to correct for acoustic cross-coupling of acoustic drivers mounted in a common acoustic enclosure. A plurality of acoustic drivers are mounted in the acoustic enclosure so that motion of each of the acoustic drivers causes motion in each of the other acoustic drivers. A canceller cancels the motion of each of the acoustic drivers caused by motion of each of the other acoustic drivers. A cancellation adjuster cancels the motion of each of the acoustic drivers that may result from the operation of the canceller. | 09-16-2010 |
20110228944 | Automatic Audio Source Switching - A method for automatically switching an audio source includes the steps of receiving an audio signal from a video display device, and receiving a digital audio signal from one of a plurality of audio/video source devices which each can supply audio and video information to the video display device. The digital audio signal is compared with the audio signal from the video display device. The digital audio signal is output to a supplemental audio system of the video display device when the comparing step indicates that the digital audio signal and the audio signal from the video display device contain substantially similar audio programs. | 09-22-2011 |
20120321099 | DIRECTIONALLY RADIATING SOUND IN A VEHICLE - A vehicle loudspeaker system in a vehicle including directional loudspeakers. One directional loudspeaker radiates sound at a first seating position and another loudspeaker radiates sound at a second seating position. The directional loudspeakers may be used with other vehicle loudspeakers to control spatial perceptions. | 12-20-2012 |
20130279716 | SYSTEM AND METHOD FOR DIRECTIONALLY RADIATING SOUND - A method of operating an audio system that provides audio radiation to a plurality of listening positions includes providing at least one source of audio signals. At each listening position, at least one array of speaker elements is provided. A filter is provided between the at least one source and at least one of the speaker elements at a first listening position. The filter is optimized so that the filter reduces acoustic energy radiated from the first array to at least one other listening position of the plurality of listening positions, compared to acoustic energy radiated from the first array to the first listening position. | 10-24-2013 |
20140161288 | ELECTROACOUSTICAL TRANSDUCING - Electroacoustical apparatus includes at least first and second acoustically coupled electroacoustical drivers. An electrical network couples their inputs so that an electrical drive signal applied to one reduces the effect of acoustic coupling from that one to the other. | 06-12-2014 |