Technical Field of The I nvention

The present invention relates to a system that enables a listener and a loudspeaker to remain at a linear axis and a sound to be transmitted without any changes at the drivers’ frequency response caused by leaving the linear axis of a speaker, by determining position of the listener via a sensor or a similar tool such as a camera, a LI DAR (Light Detection and Ranging Tool) , a RANGEFI NDER (Ranging Tool) , and thereby allowing loudspeaker enclosures or drivers to be rotated towards the listener.

The invention also relates to a system that allows a listener hear sound in phase in a multiple speaker system and as if they are at an equal distance to right and left speakers even if they have a different distance by measuring the distance between the listener and the individual speakers, which is ensured by applying delay to either one of the speakers by the system .

Prior Art

Loudspeakers (at higher frequencies in particular) radiate sound at a linear axis (forward from centers of the drivers) with minimum loss at their frequency response. As the listener gets far away from the linear axis of the loudspeaker, their frequency response changes which results as a loss in certain frequencies.

To avoid losses in the sound, the listener would be located at the linear axis of the loudspeaker or rotate the loudspeaker so as to face perpendicular to the loudspeaker. The listener would work at music studios in particular without moving and trying to stay at the linear axis of the loudspeaker. I f the listener is on the move and thus gets out of the linear axis of the loudspeaker, he would face with some losses in higher frequencies in particular.

As 15 degrees, which can be considered as a little amount of degree, may lead to some losses at some frequencies, the listener would not realize this case and work with a changed audio. This case effectively shows up in studios in particular. I n measurements that are carried out by use of measuring microphones, it would be displayed that some losses occur as getting out of the linear axis. I n addition to this, if the listener is on the move, he would first hear the audio of speaker to which he is closer before the audio of the loudspeaker from which he is further away, as it has a given difference in its distance to right and left loudspeakers. I t would in return lead to losses in some frequencies in the audio because of the cancellation of frequencies which is caused by being out of phase. The listener would try to stay at an equal distance to the speakers and without moving in order to avoid this drawback.

The invention has been developed in order to eliminate the aforementioned drawbacks and has a distinctive nature relative to the most prior art techniques known as off axis and phase correction of speakers.

Summary of The I nvention

The present invention relates to off axis and phase correction of loudspeakers in order to eliminate the aforementioned disadvantages and provide novel advantages to the related technical field.

An aim of the invention is to provide a system that enables an audio to be transmitted at the same linear axis with a listener by sensing position of the listener and thereby rotating the loudspeaker or the drivers in order to avoid frequency response losses, and allow the listener to hear the audio in a proper and accurate manner.

Another aim of the invention is to provide a system that allows audio off axis frequency response losses and out of phase issues to be minimized.

A further aim of the invention is to provide a system that enables a listener to be continuously monitored no matter what the location or position of the listener is, and also an audio to be transmitted.

Another aim of the invention is to provide a system that enables simultaneous, in phase transmission of the audios of the speakers that are at different distances relative to the listener.

A further aim of the invention is to develop a system that allows a listener to hear a sound in phase where there are multiple speakers and as if they are at an equal distance to right and left speakers even if they have a different distance by measuring the distance between the listener and the loudspeaker, which is ensured by applying delay to either one of the loudspeakers by the system . The present invention relates to off axis and phase correction of loudspeakers in order to achieve all aims that are stated above and would be more evident with the help of the detailed description presented below.

I n a preferable embodiment of the invention, the invention has a delay circuit that enables the listener to hear the audio simultaneously and in phase from speakers with different distances by measuring the distance between the listener standing still or on the move and the loudspeaker enclosures and thus applying delay to the driver close to the listener.

I n another preferable embodiment of the invention, the tool that allows determining the position of the Listener located within a Monitoring Mechanism is a camera.

I n a further preferable embodiment of the invention, the tool that allows determining the position of the Listener located within the Monitoring Mechanism is a LI DAR (Light Detection or Ranging Tool) .

I n a different preferable embodiment of the invention, the tool that allows determining the position of the Listener located within the Monitoring Mechanism is a RANGEFI NDER (Ranging Tool) .

I n a further preferable embodiment of the invention, it has the Delay Circuit that allows a listener to hear the audio without any out of phase issues as if a listener on the move or remaining at a stable location is at an equal distance to the right and left speaker even if they have a different distance.

I n a further preferable embodiment of the invention, the tool that allows determining the position of the Listener located within the Monitoring Mechanism is an I NFRARED CAMERA operating in cooperation with an I NFRARED PROJECTOR.

Brief Description of The Drawings

Figure 1 shows the elements that form off axis and phase correction of loudspeakers.

Figure 2a shows the axes for transmitting the audio at determined angles by a driver.

Figure 2b shows the axes for transmitting the audio at determined angles by a loudspeaker.

Figure 3a shows the situation when the drivers are rotated relative to different positions of the listener. Figure 3b shows the situation when the loudspeaker is rotated relative to different positions of the listener.

Figure 4a shows that the drivers and the listener are at the same linear axis.

Figure 4b shows that the loudspeakers and the listener are at the same linear axis.

Figure 5 shows that the listener on the move is at a different distance to the speakers, he hears the audios coming from a right speaker enclosure (5.2) and a left speaker enclosure (5.1 ) , by applying delay to the left speaker enclosure (5.1 ) .

Definitions of the Elements/ Portions/ Parts Forming the I nvention

The parts/portions/elements presented in the figures illustrated in order to depict more explicitly off axis and phase correction of loudspeakers, which has been developed with the present invention are individually numbered and the corresponding definition of every number is as follows.

1 Pan Motor

2 Tilt Motor

3 Driver

4 Monitoring Mechanism

5 Speaker Enclosure

5.1 Left Speaker Enclosure

5.2 Right Speaker Enclosure

6 Audio delay circuit

Detailed Description of The I nvention

The novelty according to the present invention is described, without limitation, with the help of exemplary embodiments in order to better understand the art. Accordingly, off axis and phase correction of loudspeakers is herein described.

The invention detects the point where a listener is located and thereby rotates speaker enclosures (5) or drivers (3) that allow an audio to be transmitted relative to the location where the listener is present. Thus, it enables the listener to receive the audio with the least rate of off axis frequency response change and out of phase issue when the listener is on the move or standing still not in an equal distance to speakers. When the speaker enclosure (5) is rotated to the listener; even if the listener gets out of the linear axis of the speaker enclosures (5) , rotating the speaker enclosures (5) to the listener allows the listener to stay at their linear axes together with the speaker enclosures (5) and thereby the audio to be transmitted without any frequency changes. I t is enabled for whole loudspeaker, in other words, the entire speaker enclosure (5) to be rotated to the listener in one piece.

I n another embodiment of our invention, the round portion of the speaker enclosure (5) letting the audio out, which is also called as driver (3) , is enabled to rotate to the listener while the speaker enclosure remains stable. Similarly, the entire speaker operates based on the operating principle of turning of the speaker enclosures (5) , wherein rotating of the round portion of the speaker enclosure letting the audio out, which is just herein called as the driver (3) , to the listener allows the listener to remain at the linear axis and thus the audio to be transmitted without any frequency response change.

The invention measures the distance between the listener on the move and the speakers, in other words, the speaker enclosure (5) or the drivers (3) , and applies delay to the driver (3) close to the listener as well as allows the listener to hear the audio in phase from the speaker enclosures (5) or the drivers (3) having different distances.

Transmission of the audio with the least change at frequency response is particularly very important for the audio studios. As the listener needs to remain stable at one point to which the speaker enclosures (5) or the drivers (3) face without any move. The system in our invention allows the listener to have a movement area without any need to remain at one point and a more convenient operation. I t sometimes eliminates the losses occurred as a result of unnoticeable displacements. Furthermore, our invention is capable of focusing on a desired position by the user in addition to moving relative to the location of the listener.

Operating principles of our invention comprises the following steps; continuous detecting of position of the listener by use of a sensor or similar tools such as a camera, a LI DAR or a RANGERFI NDER, rotating the speaker enclosures (5) , and in another embodiment, the driver (3) towards the listener by means of a mechanical component, and allowing the audio to be transmitted with the least change at frequency response possible by enabling the listener to remain at the linear axis of the speaker enclosure (5) or the driver.

With reference to Figure 1 , among the components forming off axis and phase correction of loudspeakers, a Pan motor (1 ) used to rotate the speaker enclosure (5) or the driver (3) at their right - left axes, a Tilt motor (2) allowing the speaker enclosure (5) or the driver (3) to be turned at up - down axis, a monitoring mechanism (4) comprising at least one tool used to detect position of the listener, delivering the information on position of the listener to the pan motor (1 ) and the tilt motor (2) in order to allow the speaker enclosure (5) or the driver (3) to remain at the same linear axis with the listener, and an audio delay circuit (6) determining how much delay will be applied in audio depending on the distance measured by the Monitoring Mechanism (4) , and carrying out delay process are shown in overall view in the speaker enclosure (5) .

Referring to Figure 2a and figure 2b, overall views of the driver (3) and the speaker enclosure (5) are shown. The axes are shown, which are for radiating the audio coming from the driver (3) and the speaker enclosure (5) at determined angles (45°,30 ⁰ , 15 ⁰ ,0°, 15°, 30°, 45°) .

With reference to Figure 3a and figure 3b, the case when the loudspeakers, in other words, the speaker enclosures (5) and the drivers (3) rotate relative to different positions of the listener. Wherein it is shown that the most unchanged frequency response is enabled to be transmitted to the listener on the move at determined angles with the speaker enclosures (5) and drivers (3) based on the listener position. Figure 3a shows rotating of the driver (3) while Figure 3b shows the same for the speaker enclosure (5) .

With reference to Figure 4a and figure 4b, it is shown that the speaker enclosures (5) and the drivers (3) are at the same linear axis with the listener. I t is shown that the audio coming from left and the audio coming from right are exactly at the same linear axis with the listener. Figure 4a shows the driver (3) while figure 4b shows the speaker enclosure (5) on the same linear axis.

I n Figure 5, the listener on the move is shown so as to be at a different distance relative to the speakers, in other words, speaker enclosures (5) . I t is shown that the distance measured by the Monitoring Mechanism (4) is applied to the speaker enclosures (5) by the Audio Delay Circuit (6) , and the listener hears the audios coming from the right speaker enclosure (5.2) and the left speaker enclosure (5.1 ) in phase. To sum up the case related to the delay represented in Figure 5, as the listener is closer to the left speaker enclosure (5.1 ) , the listener is enabled to hear the audio without any phase change by applying delay to the left speaker enclosure (5.1 ) and thereby keeping the audio in phase reaching to the listener with the audio coming from the right speaker enclosure (5.2) . Even if it is not shown in Figure 5, based on the same operating principle, the audio is allowed to be simultaneously heard in phase by the listener with rotating of the drivers (3) while the speaker enclosure (5) remains stable this time. The tools that enable detecting the position of the Listener within the monitoring mechanism (4) may be respectively: a sensor or many similar tools such as a camera, a LI DAR (Light Detecting and Ranging Tool) , a RANGEFI NDER (Ranging Tool) , an I NFRARED CAMERA that operates in cooperation with an I NFRARED PROJECTOR. I nformation on the position of the listener can be obtained by using at least one of these tools. Moreover, these tools can be used in combination when needed.

OFF AXI S AN D PHASE CORRECTI ON OF LOUDSPEAKERS, characterized in that it comprises;

• at least one motor, preferably a Pan Motor (1 ) that provide a Speaker enclosure (5) or a Driver (3) with the ability of movement, allows the listener to move right and left in order to enable the Speaker enclosure (5) and the

Driver (3) or just the Driver (3) to remain at the same linear axis with a listener depending on the data received from a monitoring mechanism (4) ,

• at least one motor, preferably a Tilt Motor (2) that provide a Speaker enclosure (5) or a Driver (3) with the ability of movement, allows the listener to move upward and downward in order to enable the Speaker enclosure (5) and the Driver (3) or just the Driver (3) to remain at the same linear axis with a listener depending on the data received from a monitoring mechanism (4) ,

• at least one Driver (3) that rotates relative to the position of the listener, and allows the audio contained in the speaker enclosure (5) to be let out,

• a Monitoring Mechanism (4) that comprises at least one tool allowing the position of the listener to be determined, transmits the data on the position of the listener to the pan motor (1 ) and the tilt motor (2) in order to enable the speaker enclosure (5) and the Driver (3) or just the Driver (3) to remain at the same linear axis with the listener, and is contained within any speaker enclosure (5) ,

• a Delay Circuit (6) that determines how much delay will be applied in audio depending on the distance measured by the Monitoring Mechanism (4) , and applies the delay,

• at least one speaker enclosure (5) that comprises at least one motor, preferably a Pan motor (1 ) and a Tilt motor (2) , at least one driver (3) , a monitoring mechanism (4) and a delay circuit (6) , and rotates relative to the position of the listener.