This application is related to Provisional Application No. 61/889,392 filed Oct. 10, 2013.
1. Field of the Invention
This invention relates to a high frequency energy converter which, in a preferred embodiment, functions as an acoustic actuator (i.e., resonator) for treating high frequency acoustic and electromagnetic energy and producing harmonized high frequency mechanical (e.g., sound) and electromagnetic waves in response thereto. The energy converter has particular application for improving the quality of audible sound by reducing random and spurious harmonics and noise caused by room acoustics in order to produce a more natural and pleasing sound to the ears of a listener.
2. Background Art
The quality of high frequency energy (i.e., sound waves) can be negatively impacted by a variety of causes. For example, audio noise can be introduced at the source which results in sound distortion. Sound distortion can also occur when the contents of a room resonate out of tune with one another. In this same regard, the acoustics of the room in which the source of sound and the listener are located can often generate spurious and random harmonics that interfere with the ability of the listener to clearly hear the sound being transmitted across the room.
Apparatus to cancel audio noise and improve sound quality are known. However, such apparatus are relatively complex and correspondingly expensive. Moreover, the conventional audio apparatus are not commonly adapted to treat sound waves and eliminate harmonics which are introduced as a consequence of the acoustics of the particular room in which the source of the sound and the listener are located. What is therefore needed is a low cost, compact and easy-to-use high frequency energy converter which can be conveniently located throughout a room or at an audio source to reduce the effects of random and spurious harmonics in sound waves to produce a more natural and pleasing sound to the ear of the listener.
In general terms, a low cost, compact and easy-to-use high frequency energy converter is disclosed which, in a preferred embodiment, functions as an acoustic actuator (i.e., resonator) for treating high frequency acoustic and electromagnetic energy that is transmitted between a source of the high frequency energy and the ears of a listener. The high frequency energy converter includes an outer body (e.g., a cylindrical cup) that surrounds a hollow chamber. Located at the bottom of the hollow chamber of the outer cup is a crystalline material (e.g., quartz) that resonates in response to the high frequency energy generated by the source. The crystalline material is excited by the high frequency energy and generates high frequency mechanical (e.g., sound) and electromagnetic waves to the listener's ears.
A cover (e.g., a screen) is located across the crystalline material to prevent the material from falling outwardly from the hollow chamber of the outer cup of the high frequency energy converter. A dispersion horn that is manufactured from a sound-reflecting material (e.g., aluminum) is seated atop the cover inside the outer cup. The horn has a (e.g., funnel-shaped) throat running therethrough which extends from the top of the outer cup to the cover which lies across the crystalline material at the bottom of the outer cup below the cover.
A plurality of the high frequency energy converters can be (e.g., adhesively) attached to the walls of a room within which the source of sound and the listener are located. Incoming high frequency acoustic and electromagnetic energy travels in a first direction down the throat of the dispersion horn of each energy converter to excite the crystalline material which lies below the horn. The crystalline material reacts to the incoming high frequency energy so as to remove random and spurious harmonics which are often introduced by the acoustics of the room in which the energy converters are located. The crystalline material of the high frequency energy converters produce high frequency mechanical (e.g., sound) and electromagnetic waves in which interference-producing harmonics in the audio frequency range are reduced. These high frequency waves travel upwardly through the throat of each dispersion horn so as to make the audible sound within the room clearer, less distorted and more pleasing to the ears of the listener.
A first preferred embodiment for a low cost, compact and easy-to-use high frequency energy converter 1 is described while referring concurrently to
To this end, the dimensions of the energy converter 1 can vary depending upon its application and location. As will be explained in greater detail when referring to
The high frequency energy converter 1 of
To prevent the crystalline material 5 from falling out of the interior chamber 4 of the outer cup 3 of the high frequency energy converter 1, a cover 7 is placed across over the material 5. The cover 7 can be manufactured from any suitable material that will permit the transmission of high frequency energy therethrough. By way of example, the cover 7 can be a screen or have a mesh configuration. The cover 7 may be sized to be frictionally engaged by and held in place inside the cup 3 so as to lie across the crystalline material 5. In the alternative, the cover 7 can be adhesively bonded to the interior chamber 4 of the cup 3 or received within a circumferential groove (not shown) formed around the inside cup 3.
The high frequency energy converter 1 also includes a flared dispersion horn 9 that is located inside the chamber 4 at the top of the outer cup 3 so as to be seated upon the cover 7 above the crystalline material 5. The horn 9 is preferably manufactured from aluminum or any other suitable material that will reflect (i.e., disperse) high frequency energy (e.g., sound waves). The dispersion horn 9 may be sized to be frictionally engaged by and held in place inside the chamber 4 of the cup so as to sit upon the cover 7. In the alternative, the horn 9 may be adhesively bonded to the chamber 4 of the outer cup 3. What is more, the top of the horn 9 may have an outwardly-flared peripheral lip 10 that is pressed into and held against a correspondingly shaped recess 12 formed around the top edge of cup 3.
As an important feature of the high frequency energy converter 1, the dispersion horn 9 located inside the outer cup 3 has a throat 14 which extends longitudinally therethrough so as to be coaxially aligned with the cylindrical cup 3. The throat 14 establishes a path through the horn 9 for incoming high frequency acoustic and electromagnetic energy to travel in a first direction downwardly through the horn to the crystalline material 5 that lies between the cover 7 and the bottom of the outer cup 3.
The crystalline material 5 below the dispersion horn 9 of the high frequency energy converter 1 is excited and caused to resonate by the incoming high frequency acoustic and electromagnetic energy. The reaction of the crystalline material 5 to the high frequency energy reduces random and spurious interference-producing harmonics and noise introduced by the environment within which the energy converter 1 is located. In this same regard, the crystalline material 5 generates and transmits outgoing high frequency mechanical (e.g., sound) and electromagnetic waves in an opposite direction upwardly through the throat 14 of the horn 9. In the preferred embodiment, positioning a plurality of the high frequency energy converters 1 of this invention in an audio listening environment improves the clarity and quality of sound being transmitted within the environment by substantially eliminating unwanted electromagnetic and mechanical noise that adversely affects the audio frequency range so that the sound will be more pleasing to the ear of a listener.
The high frequency waves that are produced by the high frequency energy converter 1 are dispersed into the environment according to the profile of the throat 14 through the dispersion horn 9. In the example shown in
In
As in the case of the high frequency energy converter 1, a throat 28 runs through the dispersion horn 24 from the top of the outer body 22 to the cover 26 through which incoming high frequency acoustic and electromagnetic energy and outgoing high frequency waves are transmitted in opposite directions. The high frequency energy converter 20 of
Turning now to
The high frequency energy converters 1 and 20 disclosed herein can be used in a room 35 like that shown in
| Number | Name | Date | Kind |
|---|---|---|---|
| 1688744 | Nicolson | Oct 1928 | A |
| 2102668 | Ballantine | Dec 1937 | A |
| 4381831 | Putnam | May 1983 | A |
| 20020000681 | Gupta | Jan 2002 | A1 |
| 20030132056 | Meyer | Jul 2003 | A1 |
| 20150104040 | Denney, III | Apr 2015 | A1 |
| Number | Date | Country |
|---|---|---|
| 56111395 | Sep 1981 | JP |
| Number | Date | Country | |
|---|---|---|---|
| 20150104040 A1 | Apr 2015 | US |
| Number | Date | Country | |
|---|---|---|---|
| 61889392 | Oct 2013 | US |