| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Bass reproducing device | JP2004138051 | 2004-05-07 | JP2005323025A | 2005-11-17 | SASAKI KATSUHIRO |
| <P>PROBLEM TO BE SOLVED: To provide a bass reproducing device that enables a speaker unit to be installed even in a small-sized vehicle wherein large installation area can not be secured, and is capable of bass reproduction of high quality with sufficient sound pressure. <P>SOLUTION: The bass reproducing device is equipped with: at least four or more speaker devices 9a to 9f which each have a bass speaker unit 21 put in a dedicated cabinet 23 and are arranged dispersedly in a listening room 3a; and delay processing circuits 32a to 32f which adjust output timing of signals to the respective speaker devices 9a to 9f so that arrival times of sounds from the respective speaker devices 9a to 9f to a listening point (driver seat 4) in the listening room are coincident. <P>COPYRIGHT: (C)2006,JPO&NCIPI | ||||||
| 182 | Listening room and speaker system | JP33028291 | 1991-12-13 | JPH05168080A | 1993-07-02 | TAMURA TADASHI; TAKAYAMA SATOSHI; FUJIMOTO AKIRO |
| PURPOSE: To obtain the desired sound field occupying a small space by using a speaker system with the acoustic tube arranged in front of the speaker unit and matching the shape and material of the speaker cabinet to the listening room. CONSTITUTION: This system is constituted of a speaker cabinet 2 shutting in the sound wave emitted from the back by a speaker unit 1, an acoustic tube 3 introducing the sound wave arranged in front of the speaker cabinet 1, a sound carrying part 4 carrying the sound wave emitted from the front to the opening part of the acoustic tube 3, a divider 5, acoustic material 6, and a hole 7 for fastener bis. Therefore, a flat sound pressure frequency characteristic of the sound wave emitted from the front of the speaker unit 1 can be obtained owing to the effect of the divider 5 and the acoustic material 6. Further, the speaker cabinet 2 of the speaker system 11 is made of the same material and form as an external wall 8 and the opening port part of the acoustic tube 3 is exposed to the corner of the listening room. COPYRIGHT: (C)1993,JPO&Japio | ||||||
| 183 | Sound field control device | JP23504789 | 1989-09-11 | JPH0397400A | 1991-04-23 | MURAKI KENJI |
| PURPOSE: To reproduce a sound field at an optional position in a listening room by measuring the listening position of the listening room, and correcting sound field data according to the is result, and executing sound field control based on the sound field data. CONSTITUTION: Impulsive responses between a microphone 110 and a first speaker 106, a second speaker 107, a third speaker 108 and a fourth speaker 109 are measured, and the listening position where the microphone 110 is installed is obtained from the delay time of the direct sound of the impulsive response by a listening position measuring means 111. On the assumption that distance from the first speaker to the listening position assumed in the sound field data stored in a sound field data storage means 112 is r a, and the distance from the first speaker to the measured listening position is r b, a sound whose amplitude is r b/r a-times as large as the amplitude for the listening position of the sound field data stored in the sound field data storage means 112 is emitted. COPYRIGHT: (C)1991,JPO&Japio | ||||||
| 184 | AUTOMATIC TIMBRE CONTROL | EP14735933.5 | 2014-07-02 | EP3025517A1 | 2016-06-01 | CHRISTOPH, Markus; SCHOLZ, Leander |
| A system and method for automatically controlling the timbre of a sound signal in a listening room are also disclosed, which include the following: generating an acoustic sound output from an electrical sound signal; measuring the total acoustic sound level in the room and generating an electrical total sound signal representative of the total acoustic sound level in the room, wherein the total acoustic sound comprises the acoustic sound output generated from the electrical sound signal; and adjusting the gain of the electrical sound signal dependent on a room-dependent gain signal, the room-dependent gain signal being determined from reference room data and estimated room data. | ||||||
| 185 | Sound reproduction device | JP2006001377 | 2006-01-06 | JP2007184758A | 2007-07-19 | INOUE YOSHIKO; FUJINAMI YOSHIHISA; ETO MASAHIRO |
| <P>PROBLEM TO BE SOLVED: To reduce a feeling of imbalance of sound image localization in a cabin and a feeling of booming of a sound field. <P>SOLUTION: A sound image localization correction processing unit 1 perform delay processing for an audio signal of an L channel, an audio signal of an R channel, and an addition signal of the audio signal of the L channel and the audio signal of the R channel according to the number of seats at listening positions, and adds the addition signal having been delayed to the audio signals of the respective channels having been delayed. A sound quality improvement processing unit 2 divides the signals of the respective channels from the sound image localization correction processing unit 1 into three bands of high, middle, and low frequencies and performs dynamic range compression processing for the signals divided into the respective bands. A time delay correction unit 3 performs delay processing for the signals of the respective channels from the sound quality improvement processing unit 2 according to the seats at the listening positions. <P>COPYRIGHT: (C)2007,JPO&INPIT | ||||||
| 186 | Sound field regeneration device | JP13386699 | 1999-05-14 | JP2000322067A | 2000-11-24 | ONO KAZUO; KOMIYAMA SETSU; MORITA AKIRA |
| PROBLEM TO BE SOLVED: To realize a wide listening range without damaging balance of sound ring regardless of the position of a listener in a listening room. SOLUTION: This device is so composed that, as for crossing points (intersection points) B, A where a principal axis E of a directivity pattern in the vertical direction of a speaker system in which two speaker units are lined up in the vertical direction, and a first lower-side dip D of a directivity pattern in the vertical direction at 3.5 kHz intersect respectively a plane R at the height of an ear of a listener, the intersection point B is positioned on the inner side of the plane of symmetry N of located positions of the speaker system M1, M5, and that the intersection point A is positioned on this side of the plane of symmetry N. COPYRIGHT: (C)2000,JPO | ||||||
| 187 | Automatic sound volume adjustment device in response to noise sound feeling | JP34359595 | 1995-12-28 | JPH09186540A | 1997-07-15 | MATSUMURA TADAAKI; KOWAKI HIROSHI; YAMAGUCHI HIROYUKI |
| PROBLEM TO BE SOLVED: To attain automatic sound volume adjustment without a sense of incongruity on a listening sense by adopting digital control for the sound volume adjustment so as to increase the detection accuracy of the noise sound thereby adjusting parameters such as optional time constants for a sound volume correction method. SOLUTION: A DSP digital signal processor 2 of the device 1 calculates using an interior signal processing means 4 to calculate a comparison signal based on an input signal from an interior sound input device 3, uses a sound source signal processing means 5 to compare with a reference signal and detects a noise amount by the arithmetic processing in a sound volume control means 6 to control the sound volume adjustment. The sound volume is adjusted also according to road information from a navigation device 7. An ON/OFF changeover means 8 selects ON or OFF control and various parameters are received from an adjustment means 9 for the setting. The device 1 is integrated in an on-vehicle audio equipment 10 and the program source from a sound source 11 is reproduced in the inside of a vehicle chamber. | ||||||
| 188 | Sound field correction device | JP29660188 | 1988-11-24 | JPH02142299A | 1990-05-31 | KUSAMUTA YOSHITOSHI; YAMAGATA KAZUHIRO |
| PURPOSE: To enjoy a sound field at home similar to that at a concert hall by correcting an audio signal in response to difference information between a sound collection microphone in the concert hall and an optimum listening point. CONSTITUTION: An audio signal via a digital interface circuit 10 is given to a 1st acoustic characteristic variable circuit 11 and the acoustic characteristic is changed, then the result is given to a 2nd acoustic characteristic variable circuit 12. When any concert hall is designated, characteristic setting means 13, 23 extract a setting value as to the commanded concert hall from a hall corresponding setting value storage means and give the value to the acoustic characteristic variable means 11, 12. Thus, the acoustic characteristic variable means varies the acoustic characteristic of an audio signal of inputted plural channels according to the setting value and the result is converted into an audio signal from the concert stage of the concert hall toward the optimum listening point. Thus, the similar sound field to that listened to at the optimum listening point in the concert hall is reproduced in the listening room of each user. COPYRIGHT: (C)1990,JPO&Japio | ||||||
| 189 | Speaker system for variable reproducing sound field characteristic | JP8321481 | 1981-05-30 | JPS57197996A | 1982-12-04 | HAYASE TOORU |
| PURPOSE:To control the directivity, by fixing plural speaker units for the same frequency band at proper intervals and giving a level difference, a time difference, and a phase difference to speaker units. CONSTITUTION:A woofer 2 is fixed in the lower part of the front of a speaker box 1, and one side in the upper part of the front is cut to form a slope 3, and tweeters 41 and 42 are fixed to the upper part of the front of the speaker box 1 and the slope 3. When a pair of speaker systems is so installed that tweeters 42 fixed to slopes 3 are placed nearer to walls of a listening room 6, tweeters 41 provided in upper parts of the front of speaker boxes 1 take charge of direct sound components to a listener 7, and tweeters 42 provided on slopes 3 take charge of reflected sound components. Attenuators 52 and 53 are operated to change input signal levels to tweeters 41 and 42, thus making them suitable for the sound absorptivity of walls or the like to obtain an optimum reproducing sound field. Delay elements are effective besides attenuators. | ||||||
| 190 | Multichannel acoustic signal generator | JP21613681 | 1981-12-24 | JPS57196700A | 1982-12-02 | PETSUKA HERUKAMA |
| 191 | Sound processing apparatus and method | JP2009286961 | 2009-12-17 | JP2011130212A | 2011-06-30 | TANAKA ATSUSHI |
| PROBLEM TO BE SOLVED: To alleviate an influence of reverberation after a fall of the signal including a frequency component generating a standing wave that results in a problem on a sense of hearing. SOLUTION: The test sound signal for measuring the standing wave condition of the test sound released within a listening room is collected to identify the peak location or the dip location caused by the standing wave based on the frequency characteristic thereof. Next, the burst sound signal corresponding to the frequency of the peak location or the dip location is released and this sound signal is collected. An increment ΔP of the peak increased at the falling part corresponding to the end location of the burst signal for the peak of the part corresponding to the steady part of the burst signal of the sound signal collected is computed to attenuate a frequency at the peak or dip location of the sound signal to be output with an attenuation level depending on the increment ΔP. COPYRIGHT: (C)2011,JPO&INPIT | ||||||
| 192 | Condition setting device for sound field generation showing desired acoustic characteristic | JP25463594 | 1994-09-22 | JPH0895583A | 1996-04-12 | NIIHARA TOSHIKO |
| PURPOSE: To provide a condition setting device for creating an acoustic field showing desired acoustic characteristics. CONSTITUTION: Input operation to an input part 1 is performed by means of a group of terms composed of general terms expressing a tone and their antonyms and a group of terms composed of general terms expressing an acoustic field and their antonyms. The inputted terms are transformed to physical data such as acoustic field designing data predetermined in correspondence with the respective terms by means of a signal processing part 2. When the transformed physical data are made to output while displaying on a display device 4, the designing data of a listening room are easily outputted and, when a coefficient for calculation in a digital signal processor is made to output complied with the transformed physical data, setting of desired acoustic field is easily performed. | ||||||
| 193 | Acoustic reproducing device | JP32897691 | 1991-12-12 | JPH05176391A | 1993-07-13 | KUZUHARA ATSUSHI; ASANUMA RYUICHI |
| PURPOSE: To obtain an acoustic reproducing device capable of stereo-phonically reproducing a natural sound or an environment sound by a compact size. CONSTITUTION: Poles 12, 14, 16, 18 to be moved are arranged on the four corners of a listening room 52. Speakers 2U to 28U and speakers 22D to 28D are respectively built in the upper parts of the poles 12 to 18 and lower parts of them. Respective poles are arranged so that sounds generated from the speakers are directed to the approximate center of the room 52. Respective speakers 22U to 28U, 22D to 28D are connected to a control unit 40. The unit 40 is provided with a digital recorder 42, a D/A converter 44 and amplifiers 2, 34, 36, 38 and outputs a digital signal read out from a digital tape by the. digital tape recorder 42 to the speakers 22U to 28U, 22D to 28D through the D/A converter 44 and the amplifiers 32 to 38. COPYRIGHT: (C)1993,JPO&Japio | ||||||
| 194 | Reverberation adding device | JP18553090 | 1990-07-13 | JPH0473693A | 1992-03-09 | WASHISAWA SHIGEKI |
| PURPOSE: To improve reproducing tone quality and presence by generating a direct tone reproducing signal, an initial reflection tone signal, and a reverberation signal individually. CONSTITUTION: An adder 20 adds and outputs a direct tone signal via an attenuator 10, an initial reflection tone component signal via an attenuator 11, and a reverberation tone component signal via an attenuator 12. An adder 21 adds and outputs the initial reflection tone signal via an attenuator 13 and the reverberation signal via an attenuator 14. Interlocking switch groups 22-24 synthesize and distribute the components of a direct tone, an initial reflection tone, and a reverberation tone by the optimum condition in accordance with the number of combinations of a speaker system installed at a listening room 41, and switch and supply them. Thereby, it is possible to heighten the reproducing tone quality and the presence. COPYRIGHT: (C)1992,JPO&Japio | ||||||
| 195 | Telephone exchange system | JP4074178 | 1978-04-05 | JPS54132106A | 1979-10-13 | UEDA SUSUMU |
| PURPOSE:To ensure the recalling between the subscribers by identifying the hooking of the subscriber under the talking state through the telephone exchange and then transmitting the audible tone to the subscriber of the remote side to perform exchange. CONSTITUTION:In case subscriber A and B are talking and then A leaves from the receiver with the voice of B incapable to call out A, subscriber B has hooking. Thus, intra-office trunk 4 relays the above state which is then detected at scanner 5 and then identified via common control unit 6. Then the path of subscriber A is connected to oscillator 8 which can transmit the audible tone. With generation of the audible tone, A comes back to the original place to give a voice which can be confirmed by B. With hooking of B, unit 6 releases the path. Thus, both A and B can have recalling to each other. | ||||||
| 196 | REPRODUCTION OF SPATIALISED AUDIO | PCT/GB1998/001594 | 1998-06-01 | WO98058523A1 | 1998-12-23 | |
| Immersive environments for teleconferencing, collaborative shared spaces and entertainment require spatial audio. Such environments may have non-ideal sound reproduction conditions (loudspeaker positioning, listener placement or listening room geometry) where wavefront-synthesis techniques, such as ambisonics, will not give listeners the correct audio spatialisation. The invention is a method of generating a sound field from a spatialised original audio signal, wherein the original signal is configured to produce an optimal sound percept at one predetermined ideal location by the generation of a plurality of output signal components, each for reproduction by one of an array of loudspeakers, wherein antiphase output components are attenuated such that their contribution to the spatial sound percept is reduced for locations other than the predetermined ideal location. The position components defining the location of a virtual sound source, normalised to the loudspeaker distance from the ideal location, can be adapted to generate a warped sound field by raising the position components to a power greater than unity, such that the virtual sound source is perceived by listeners in the region surrounded by the loudspeakers to be spaced from the loudspeakers. | ||||||
| 197 | AUTOMATIC TIMBRE CONTROL | US14906705 | 2014-07-02 | US20160181999A1 | 2016-06-23 | Markus CHRISTOPH; Leander SCHOLZ |
| A system and method for automatically controlling the timbre of a sound signal in a listening room are also disclosed, which include the following: generating an acoustic sound output from an electrical sound signal; measuring the total acoustic sound level in the room and generating an electrical total sound signal representative of the total acoustic sound level in the room, wherein the total acoustic sound comprises the acoustic sound output generated from the electrical sound signal; and adjusting the gain of the electrical sound signal dependent on a room-dependent gain signal, the room-dependent gain signal being determined from reference room data and estimated room data. | ||||||
| 198 | LOUDSPEAKER AND SYSTEMS | PCT/US2005032308 | 2005-09-09 | WO2006029378A3 | 2007-03-01 | GUENTHER GODEHARD A |
| The invention provides, in one aspect, a loudspeaker (90) that has electrodynamically-driven piston (102) mounted in one external wall (100) and that has movable panels (100a- 100e) in one or more other external walls. Those panels are air-coupled to the piston (102), e.g., via air within the enclosure (100), such that vibrational motion of the piston (102) causes the vibration of the panels (100a- 100e), thereby, improving the overall air coupling of the piston (102) to the external environment, e.g., the listening room. Further aspects of the invention provide an improved driver (114) for use, e.g, in the aforementioned loudspeaker (90). The driver (114) comprises a three-part piston (102) having first (103) and second diaphragms (116) coupled back-to-back with one another and having a voice coil (118)facemounted (or front-mounted) within the second diaphragm (116). | ||||||
| 199 | MODULAR SYSTEM OF LOUDSPEAKERS FOR REPRODUCTION OF MULTICHANNEL SOUND, WHICH COMPOSE A FURNITURE, ACCORDING TO THE LISTENING ROOM | PCT/GR2003/000043 | 2003-10-02 | WO2004077878A1 | 2004-09-10 | TSAKIRIS, Vasilis |
Modular system of loudspeakers for multiple channel audio reproduction, where independent modules compose a furniture. Each module has a distinct function: loudspeaker, shelf, cabinet, drawer, TV location, audio/video component location, bookshelf, CD or DVD shelf etc. The appropriate combination of the modules, with conductive connections wherever required, produces a furniture composition which offers space savings and elegant design. The system is upgradeable and modifiable as far as size, acoustical performance and technical characteristics is concerned, with the addition or removal of modules. The independent modules of the system have various sizes and shapes in addition to acoustical and technical characteristics, so that one or more combinations to match geometrically and aesthetically with every listening room and every use of simple or multiple channel audio reproduction. A computer software program with the input of shape and dimension data of the area to be covered and of the desired functions can automatically produce one or more compositions of loudspeaker furniture. |
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| 200 | Audio system phase equalization | JP2010163449 | 2010-07-20 | JP5357115B2 | 2013-12-04 | クリストフ マルクス; ショルツ リアンダー |
| A method for optimizing the acoustic localization at at least one listening position within a listening room is disclosed. A sound field being generated by a group of loudspeakers assigned to the least at one listening position, wherein the group of loudspeakers comprises a first and at least a second loudspeaker each being supplied by an audio signal via an audio channel. The method comprises calculating filter coefficients of a phase equalization filter for at least the audio channel supplying the second loudspeaker, whereby the phase response of the phase equalization filter is designed such that a binaural phase difference on the at least one listening position or a mean binaural phase difference averaged over more than one listening positions is minimized within a predefined frequency range and applying the phase equalization filter to the respective audio channel. | ||||||
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