Education and demonstration – Physical education – Golf
Reexamination Certificate
1999-09-17
2001-05-01
Nguyen, Kien T. (Department: 3712)
Education and demonstration
Physical education
Golf
C434S247000, C473S224000
Reexamination Certificate
active
06224386
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a sound field simulation method and a sound field simulation apparatus utilizing a binaural regeneration in which an amplitude difference and a time difference of a sound signal heard by a listener are changed so as to be made perceptive to the listener as if a spatially imaginary sound source is moved along a three-dimensional circular orbit. More particularly, the invention relates to a sound field simulation method and a sound field simulation apparatus for demonstrating a golf swing by a learner sensing the three-dimensional circular orbit of a club head in a golf swing movement with their body.
2. Description of the Prior Art
Conventionally, in a prior art practice method of a golf swing, there are many visual methods such as the case in which the swing is checked by watching a VTR, or by learning the swing from other person (coach) for example. In such visual methods, an ideal swing is basically imaged to a trainee of the swing to teach the trainee to swing as near as possible as to the ideal swing. Such methods are external practice methods for learning an image (ideal swing) as it is, by means of an apparatus, a teacher or a VTR.
In addition, conventionally, as a teaching method of a golf swing, weight shift is regarded as important. In such a teaching method, the swing movement is explained by a plane movement of from right to left (two-dimension). Such explanation of the swing by using a two-dimensional movement is convenient for logically explaining the swing movement because up to the present time, there is no means (method or apparatus) for creating a perception of a three-dimensional actual movement.
SUMMARY OF THE INVENTION
However, in the visual practice method described above, a body movement in the swing is actually hard for another person to perceive if the ideal swing is imaged, therefore, in such a method, the movement in the person in question may not be understood. In addition, if the practice method is an external one, since the VTR cannot be watched at the moment of ball hitting (moment of impact), the variation of the swing movement at that moment cannot be sensed bodily. Furthermore, a rhythm or a timing thereof is hard to acquire in an external practice method.
Moreover, although there are used many methods to explain the swing by the weight shift, the essential nature of the swing is not shift, but rotational movement. In other words, the swing is not a plane (two-dimensional) movement, but a solid (three-dimensional) movement in which a ball is hit through a circular orbit. Certainly, weight shift is important in the swing. However, the determination of the swing by the two-dimensional movement tends to be prepossessed with a form of the swing. Since there are differences among individuals with respect to the swing, if the circular orbit of the club head is constant or reliable, it is obvious that the swing is suited to that person. If the circular orbit of the club head becomes constant, the person's weight shift can be naturally acquired.
The present invention is proposed to solve the above-mentioned problems, and aims to obtain a sound field simulation method and a sound field simulation apparatus in which the momentary variation of the swing can be bodily sensed by using a visual method and by feeling the circular movement of the three-dimensional swing.
In addition, this invention aims to obtain a sound field simulation method and a sound field simulation apparatus in which replication can be easily performed and a feeling for the swing can be obtained by the sense of hearing without any large device such as a VTR.
Furthermore, there are prior art published documents relative to this invention; Japanese Laid-Open Patent Publication Nos. 4-30700 and 6-30500.
In a sound field simulation method according to the present invention, the imaginary sound source placed to a head of a club is made perceptive to the listener as moved along a three-dimensional circular orbit in a sequence of a golf swing movement.
In a sound field simulation method according to the present invention, the golf swing movement is divided into a plurality of steps, and a time interval is made possible to set in each of the steps
In a sound field simulation method according to the present invention, the golf swing movement is divided into five steps: from a tee up with targeting a target place till a set up; from the set up till a top of swing; during said top of swing; from the top of swing till an impact; and from the impact till a finish.
In a sound field simulation method according to the present invention, a sound of the sound source is changed in accordance with a kind of club.
In a sound field simulation method according to the present invention, one of a frequency, volume, and sound and volume of the sound source is changed in a process that the imaginary sound source is moved along the three-dimensional circular orbit.
In a sound field simulation method according to the present invention, squares are assumed in a three-dimensional space, and musical scales are set to the squares in a direction and a transverse direction with reference to the listener. In addition, volume is set to the squares in a back and forth direction (hereafter depth direction) with reference to the listener. This arrangement changes the musical scales and the volume in accordance with the squares corresponding to the three-dimensional circular orbit.
In a sound field simulation method according to the present invention, one of the frequency, the volume, and the sound and volume of the sound source is changed in accordance with a moving speed of the sound source.
In a sound field simulation apparatus according to the present invention, there are provided: a memory means for memorizing sound field information to realize a sound field simulation in which an imaginary sound source placed to a club head is made perceptive to a listener so as to be moved along a three-dimensional circular orbit in a sequence of a golf swing movement; a change means provided to each of right and left ears of the listener, for changing the sound field information into sound signal; a sound generation means provided to each of the right and left ears of the listener, for radiating to the right and left ears of the listener, with the sound signal being changed into a sound wave; and a control means for controlling a regeneration from the sound field information to the sound wave.
In a sound field simulation apparatus according to the present invention, a regeneration speed change means for changing a regeneration speed from the sound field information to sound wave in accordance with a selection signal.
REFERENCES:
patent: 3808707 (1974-05-01), Fink
patent: 5372365 (1994-12-01), McTeigue et al.
patent: 5558519 (1996-09-01), Sabowitz
patent: 5743807 (1998-04-01), Bendo et al.
Asahi Electric Institute, Ltd.
Nguyen Kien T.
Rothwell Figg Ernst & Manbeck
LandOfFree
Sound field simulation method and sound field simulation... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sound field simulation method and sound field simulation..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sound field simulation method and sound field simulation... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2496645