Computer graphics processing and selective visual display system – Display peripheral interface input device
Patent
1998-02-17
2000-04-04
Huynh, Ba
Computer graphics processing and selective visual display system
Display peripheral interface input device
348162, 348163, 348754, 34081546, 367 7, G09G 510
Patent
active
06046724&
DESCRIPTION:
BRIEF SUMMARY
The invention concerns a method for the conversion of soundwaves into electromagnetic wave movement, preferably light, whereby soundwaves are converted to an electrical signal and are processed by a number of filters, and in addition an apparatus for performing the method.
U.S. Pat. No. 5,191,319 discloses a system for filtering music in 11 variable width frequency bands, in which every interval results in a preset colour display. In this patent the colours are chosen from what visually looks best.
U.S. Pat. No. 4,614,942 discloses a system as the above, but where a fourband model is used, in which one similarly chooses a colour visualisation based on sound influences based on what seems most visually appropriate. In other words, the state of the art shows converting of sound into light, but where a signal may only imply that one colour is activated, and thereby does not give the possibility for blending of colours, where the colour mixture will assume different appearances, depending on from which frequency the sound originates.
It is the purpose of the invention to create a method which does not have the disadvantages of the previous mentioned systems, and where it is possible to convert sound to light by means of colours in such a way that a specified frequency will represent a single colour or mixtures of colours.
This purpose is achieved by the method referred to in the introduction and where, in addition, one filter processes a part of the electrical signal, the size of which part being dependent of the frequency of the sound wave, and also that the remaining filters process the remaining part of the electrical signal, whose distribution among the remaining filters is similarly a function of the frequency of the sound wave, which filters subsequently each are connected to respective colour displays, where the colour display of each filter is a predetermined colour, and where the generating of each single colour display is directly proportional to the part of the signal processesing of the corresponding filter, which colour displays are visualized in a colour display means as a single colour or as a mixture of two or more colour displays.
By such a method it is possible to convert any sound to a light image, possibly on a computer screen or a light emission source. Depending on the tone, a sound will show itself as an image of an individual colour or combination of colours, in that a sound tone will result in a single or more filters being activated and where each filter is connected to colour displays. For example, if a filter is connected to a colour display that is blue, together with another filter colour display which is yellow and if the filters are activated in the ratio 1:1, the output on the display means will be green. It is thereby possible to achieve a infinitely variable, visual registration of a sound signal which can be used with sound shows, that are to be visualized, and in connection with deaf-handicapped who, by this process, can achieve an understanding and awareness of sound.
By using such a method according to the invention; it allows the possibility of mixing only two colours together with the individual chosen colour, which results in an unambiguous signal and reading/decoding of the sound. This is important especially in connection with the use of the invention by deaf-handicapped.
By using a method according to the invention an appropriate processing of sound which is easy to visualize is achieved.
By using a method according to the invention an appropriate means of visualizing the whole audible sound spectrum is achieved.
All colours may be expressed either as a frequency (Hertz) or as wavelengths (nanometers). This applies similarly to the audible sound areas, where wavelengths are expressed i m, cm, or mm. The human ear can detect sound from approx 20 Hz to approx 20 kHz (wave-lengths from 20 m to 20 mm) corresponding to 10 octaves. The human eye can register wavelengths from approx 792 nm to 396 nm, corresponding to one doubling of the frequency or 1 audible octave. The o
REFERENCES:
patent: 5191319 (1993-03-01), Kiltz
patent: 5403261 (1995-04-01), Shimizu et al.
patent: 5504522 (1996-04-01), Setogawa
patent: 5659173 (1997-08-01), Putterman et al.
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