Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 8045736 | Sound field reproduction system The present invention is directed to providing a sound field reproduction system that can enhance the sound separation between the front and rear seats or left and right seats of a vehicle. The sound field reproduction system includes a control unit for creating a f... | 10/25/2011 |
| 7899198 | Headrest surround channel electroacoustical transducing An audio system including a first audio source, including a surround channel signal, coupled to an electroacoustical transducer mounted in the back of a seat of, for example, an automobile, so that the surround channel is radiated from the electroacoustical transduc... | 03/01/2011 |
| 7742610 | Automobile audiovisual system A control signal is generated by an operating means for being operated by a driver. In response to this control signal, an input signal to rear-seat headphones is temporarily attenuated or is replaced by another given signal or a transmission signal from the driver.... | 06/22/2010 |
| 7684577 | Vehicle-mounted stereophonic sound field reproducer In correspondence with the left and right external ears of a listener occupying a seat, a three dimensional sound field reproducing unit includes at least more than two speakers disposed on a headrest on the top of a backrest of the seat, and three dimensional signa... | 03/23/2010 |
| 7457425 | Vehicle sound system A vehicle sound system encompasses a combination of speaker configuration, speaker placement, and sound processing to improve sound quality. A pair of speakers (or rows of speakers) are placed close together and located in the front of the console or dashboard with ... | 11/25/2008 |
| 7440578 | Vehicle-mounted three dimensional sound field reproducing silencing unit A vehicle-mounted three dimensional sound signal reproducing•silencing unit includes at least two speakers disposed for each of seats to be occupied by listeners so as to generate a three dimensional sound field space in a region inclusive of left and right extern... | 10/21/2008 |
| 7424127 | Headrest surround channel electroacoustical transducing An audio system including a first audio source, including a surround channel signal, coupled to an electroacoustical transducer mounted in the back of a seat of, for example, an automobile, so that the surround channel is radiated from the electroacoustical transduc... | 09/09/2008 |
| 7397405 | Audio device arrangement structure for a motorcycle, and motorcycle incorporating same An audio device arrangement structure for a motorcycle is configured and arranged to provide high-quality sound output. The audio device arrangement structure serves to mount an audio device, which includes an audio unit, an amplifier and at least one speaker, for a... | 07/08/2008 |
| 7377358 | Frame for speaker device and speaker device A speaker device includes a vibration system having a frame and a magnetic circuit. The frame has a magnetic circuit housing unit, an outer peripheral portion having an annular shape arranged on the outer side thereof, and multiple arm parts connecting the magnetic ... | 05/27/2008 |
| 7369666 | Audio reproducing system High and low frequency components Cn1, Cn2 are generated by causing a center channel audio signal Cn to pass through a high-pass filter HPF and a low-pass filter LPF, and the high frequency component Cn1 is supplied to the center cha... | 05/06/2008 |
| 7366607 | Navigation apparatus A navigation apparatus includes a guidance-information creating unit that creates guidance information by acquiring a guiding direction, in which a vehicle should be guided, from preset route information and current position information; an acoustic-image creating u... | 04/29/2008 |
| 7343020 | Vehicle audio system with directional sound and reflected audio imaging for creating a personal sound stage Automotive audio systems that use directional planar magnetic transducers in a layout or placement configuration to provide direct or reflected audio imaging in stereo or surround sounds for individual passengers of an automotive vehicle with reduced crossed audio i... | 03/11/2008 |
| 7327235 | Alarm sound outputting device for vehicle and program thereof In a vehicle alarm sound outputting device, in a filter coefficient generator, interpolation of filter coefficients is carried out in accordance with the relative position between a vehicle and an object by using head related transfer functions serving as base data ... | 02/05/2008 |
| 7325648 | Frame for speaker device and speaker device A frame for a speaker device has an annular outer peripheral portion. The outer peripheral portion includes plural wall portions concentrically formed. An end surface of the wall portion on an inner circumferential side of the outer peripheral portion is formed at a... | 02/05/2008 |
| 7305097 | Controlling fading and surround signal level Systems and techniques for controlling a surround sound system having multiple input signals and multiple spatially diverse transducers may include defining a first control region and a second control region. When operating in the first control region, a first set o... | 12/04/2007 |
| 7298863 | In-vehicle speaker rotational mounting structure An in-vehicle speaker rotational mounting structure including a speaker unit having a claw portion provided thereon, and a panel member on which the speaker unit is mounted, wherein the claw portion is inserted into a slit formed in the panel member, so that the spe... | 11/20/2007 |
| 7292697 | Audio reproducing system High and low frequency components Cn1, Cn2 are generated by causing a center channel audio signal Cn to pass through a high-pass filter HPF and a low-pass filter LPF, and the high frequency component Cn1 is supplied to the center cha... | 11/06/2007 |
| 7277551 | Sound reproducing apparatus and sound reproducing method A sound reproducing apparatus includes a low-frequency sound reproducing unit for reproducing and outputting a low-frequency sound having a frequency of a predetermined frequency or less; a high-frequency sound reproducing unit for reproducing and outputting a high-... | 10/02/2007 |
| 7274716 | Multiplexed sigma-delta interface An improved digital interface circuit that allows a plurality of data streams and other digital information to be output over a single channel. The digital interface circuit includes a plurality of data inputs, at least one control input, at least one clock input, a... | 09/25/2007 |
| 7254239 | Sound system and method of sound reproduction A sound reproduction system comprises a left and right speakers located in close proximity, and a sound processor which provides audio signals to the pair of speakers. The sound processor preferably derives a cancellation signal from the difference between the left ... | 08/07/2007 |
| 7239715 | Speaker apparatus to be mounted on a vehicle A speaker apparatus to be mounted on a vehicle includes a speaker unit and a mounting device. The speaker unit has a frame. The mounting device mounts the frame of the speaker unit on a panel member of a vehicle body. The mounting device includes insulators, which p... | 07/03/2007 |
| 7227969 | Inner panel loudspeaker apparatus A loudspeaker apparatus is provided with a loudspeaker unit attached to an inner panel. The inner panel of the loudspeaker unit is provided with: an opening to which the loudspeaker unit is attached; a volume unit in which the loudspeaker unit is housed from the ope... | 06/05/2007 |
| 7218745 | Headliner transducer covers A vehicle headliner includes electromagnetic drivers for sonically driving a member or a layer of the headliner. A foam beam is shaped around a driver transducer connection area that holds one or more driver connectors. A cover may be maintained over the shaped foam... | 05/15/2007 |
| 7215949 | Cellular subscriber radio service A method for retransmitting a received radio programming signal is disclosed. The method comprises the steps of: receiving the signal over a cellular transmission network at a first transceiver station configured to output the radio programming signal; and transmitt... | 05/08/2007 |
| 7206413 | Sound processing system using spatial imaging techniques A sound processing system reduces the instances when only a center speaker is heard. The gain of a volume setting is adjusted for individual speakers in response to one or more input signals. The gain of the center speaker is attenuated in relation to the global vol... | 04/17/2007 |
| 7177438 | Speaker for vehicle and mounting structure of the speaker The present invention relates to a speaker for a vehicle and an installation structure therefor, and it is an object of the invention to enhance the speaker installation rigidity without impairing the acoustic characteristic of the speaker. The speaker installation ... | 02/13/2007 |
| 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 |
| 7158642 | Method and apparatus for producing a phantom three-dimensional sound space with recorded sound A central speaker and personal headset speakers are used to create a three-dimensional phantom sound space for each listener. The speakers of the headset are located in close proximity to, but do not isolate, the ears of the listener such that external sounds are al... | 01/02/2007 |
| 7136671 | Speaker module connectable to an earphone jack of mobile phone and method for using same The present invention provides a speaker module connectable to an earphone jack of a mobile phone and a method for using same. The speaker module comprises a microphone which converts voice signals into electrical signals, a speaker which converts electrical signals... | 11/14/2006 |
| 7092531 | Sound output apparatus for an automotive vehicle An output section, consisting of a pair of loudspeakers disposed adjacently to each other, is installed inside a seatback of a designated seat. Sound output surfaces of respective loudspeakers face a designated person sitting on the designated seat. It is hence easy... | 08/15/2006 |
| 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 |
| 7077405 | Stroller with CD player An audio system which system is incorporated in a child's stroller. The system includes speakers permanently enclosed in the sidewalls or canopy of the stroller. Protective padding is provided for the speakers to prevent damage thereto and to dampen the sound to aff... | 07/18/2006 |
| 7077236 | Articulating vehicle speaker assembly An articulating speaker assembly for the interior of a motor vehicle, which includes sidewall trim defining a pocket in the trim, includes a housing and at least one speaker operatively supported within the housing. The assembly includes at least one pivot arm havin... | 07/18/2006 |
| 7073760 | Support structure for spa speakers A speaker rack for use with spas including a first and second member with the second member comprising generally extending members. The first member is coupled to the generally extending members of the second member. This first member allows for support, helps an in... | 07/11/2006 |
| 7062060 | Outer mirror and interphone for a vehicle An outer mirror and a vehicle interphone are provided for transmitting a sound to the outside from a vehicle cabin and vice versa. Sound outside the vehicle cabin is transmitted to the cabin from a microphone-loudspeaker provided in a visor cover of the outer mirror... | 06/13/2006 |
| 6999590 | Stereo sound circuit device for providing three-dimensional surrounding effect A stereo sound circuit device for providing three-dimensional surrounding effect has a difference circuit for acquiring difference signal of a left channel sound and a right channel sound. The stereo sound circuit device further provides a filter circuit consisting ... | 02/14/2006 |
| 6975737 | Speaker mounting structure of head rest in vehicle A speaker mounting structure is provided in a head rest at an upper portion of a seat. A pair of left and right speakers are mounted to the head rest, which has a through-bore at a central portion so the speakers only occupy a lower half of the through-bore. ... | 12/13/2005 |
| 6931134 | Multi-dimensional processor and multi-dimensional audio processor system A multi-dimensional audio processor receives as an input either a single channel signal or a two channel signal from an audio signal source; for example a musical instrument or an audio mixer. The processor is programmable to divide the input among at least 3 output... | 08/16/2005 |
| 6870935 | Volume stability control for partitioned audio system A partitioned audio system for an automobile having front speakers and rear speakers wherein a transition phase is provided when the system is switched between single source and dual source modes. When switching from single source mode to dual source mode, the front... | 03/22/2005 |
| 6862356 | Audio device A dummy listener and right and left speakers 13 and 14 are disposed in an anechoic room as a model of the layout of those a car cabin 15 or the like. Transfer functions ALL, ALR, ARL and ARR in a space ranging from the speakers 13 and ... | 03/01/2005 |