A Mechanism and Method for Reading/Fetching Data Stored Optically From Optical Devices Reasonably Quickly
Field of the Invention
The present invention in general, relates to a mechanism and method for reading/fetching data stored optically from optical devices reasonably quickly and in particular, to reading/fetching information from a single or multi-layered optical device, reasonably
quickly applying electromagnetic radiation techniques.
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Background of the Invention
In the areas where optical technology finds its application, for example optical media, entertainment, futuristic and other miscellaneous areas, reading/fetching of optically stored information, is an important aspect. Over the years, although optical technology, in general, witnessed significant advancement, however, significant improvement was not achieved to reduce the time involved, to read/fetch optically stored information, from single or multi-layered optical devices.
Several attempts were of course made to reduce the time involved in reading/fetching optically stored information from optical devices such as optical discs, however drawbacks existed in such ventures, in as much as, significant reduction of time was not achieved, particularly due to serial application of sensors to fetch the information.
For example, in prior US patent 5523995, an attempt was made to read/fetch optically stored information, reasonably quickly, applying electromagnetic radiation, however, the technology disclosed in such patent was suitable, only for single layered optical discs particularly due to application of a single sensor of" single beam multi element type". In this technology, the size of the head was meant for single track pitch and so the information could be read only, tracks wise. Furthermore, this technology fails to achieve significant improvement, in time involved to read optically stored information.

Accordingly, there was a long felt need to decipher a mechanism for reading/fetching data stored optically, from either single or multi-layered optical devices, reasonably quickly.
In the specification, the present invention has been described at places referring to optical discs, solely for the sake of clarity, but it is not limited to it and the present invention also includes other optical devices as well, which finds application in the areas of optical media, entertainment, futuristic and other miscellaneous areas.
Objects of the invention
It is a prime object of the present invention to provide a mechanism for reading/fetching data stored optically from optical devices, reasonably quickly.
It is a further object of the present invention to reduce the time involved in reading/fetching data stored optically from optical discs reasonably.
It is a further object of the present invention to provide a method for reading/fetching data stored optically from optical devices, reasonably quickly.
It is also another object of the present invention, to apply electromagnetic radiation techniques to facilitate, reading/fetching data stored optically from either single or multi-layered optical devices, reasonably quickly.
The above objects and other aspects of the present invention will be clear from the following description, which is purely for the sake of understanding and not by way of any sort of limitation.
Summary of the invention
Accordingly, the present invention provides a mechanism for reading/fetching data stored optically from optical devices reasonably quickly, said data being stored in elements having surfaces and plurality of track locations, said mechanism including

electromagnetic radiation source; means adapted for receiving radiation output ,
generated by the electromagnetic radiation source and for spreading it in plane(s),
means adapted for redirecting the plane(s) to the elements and receiving the plane(s)
reflected off from the surfaces of said elements and for redirecting such plane(s)
outward, wherein there are provided multi-element optical sensors, adapted for
illuminating all the track locations in one glow and also configured for receiving the
redirected reflected plane(s) from the said plurality of track locations simultaneously,
said sensors being operatively connected to decoding means for receiving the
* consequential signals from said multi-element optical sensors and reproducing the same,
thereby facilitating parallel data reading of all of the track locations simultaneously, ensuring reading/fetching data, stored optically, reasonably quickly.
In accordance with preferred embodiments of the mechanism in accordance with the invention:
-said means adapted for receiving radiation output comprises an optical coupling system, -said means adapted for receiving the plane(s) reflected off from the surface of said elements comprises a prism.
-said decoding means comprises a decoder, adapted for receiving signals from said multielement sensors and for reproducing them, for facilitating reading/fetching data stored optically.
-comprising multiple heads such as lasers and multiple elements for reading data from an optical disc.
-data can be read from one or more parallel layers, -the size of the head is approximately equal to that of the optical device, -the optical device is a multi-layered optical disc, -the optical device is a single layered optical device.
The present invention also provides a method for reading/fetching data stored optically from optical devices reasonably quickly, said data being stored in elements having surfaces and plurality of track locations, said method including generating radiation

output by an electromagnetic radiation source; receiving radiation output by the electromagnetic radiation source and spreading it in plane(s) by suitable means, redirecting the plane(s) to the elements and receiving the plane(s) reflected off from the surfaces of said elements and thereafter, redirecting such plane(s) outward by suitable means, wherein said method further comprises illuminating all the track locations in one glow and receiving the redirected reflected plane(s) from the said plurality of track locations simultaneously by means of multi-element sensors , and operatively connecting
said sensors to decoding means for receiving the consequential, signals from said multi-
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element optical sensors and reproducing the same, thereby facilitating parallel data reading of all of the track locations simultaneously, ensuring reading/fetching data, stored optically, reasonably quickly.
DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The nature and scope of the present invention will be better understood from the
accompanying drawings, which are purely by way of illustration and not by way of any
sort of limitation. In the accompanying drawings:
Figl illustrates a Chuck without the disc in accordance with the invention wherein the
blue colored fonts, highlight the inventive aspects.
Fig 2 illustrates a Chuck with the disc in accordance with the invention wherein the blue
colored fonts, highlight the inventive aspects.
Detailed description of the invention
As stated before, in the areas where optical technology finds its application, for example optical media, entertainment, futuristic and other miscellaneous areas, reading/fetching of optically stored infomiation, is an important aspect. Over the years, although optical technology, in general, witnessed significant advancement, however, significant improvement was not achieved to reduce the time involved, to read/fetch optically stored information, from single or multi-layered optical devices.
The present invention therefore aims at reading/fetching data stored optically from both single and multi-layered optical devices reasonably quickly. In order to reduce the time
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required to fetch the information from a single or a multi layered optical disc, number of sensors for parts of layers have been used. This reduces the time required to fetch the information from a single or a multi layered optical disc.
The present invention is directed to an electromagnetic radiation read mechanism for reading data stored optically in elements having surfaces and plurality of tracks, which mechanism includes a source of electromagnetic radiation; an optical coupling system, which optical system is disposed so as to receive radiation output by the source of electromagnetic radiation and spreading it into plane(s), a prism, which prism is constructed and disposed so as to receive the plane(s) and redirecting it to reflect off the surface of the element, and which prism is further constructed and disposed so as to receive the reflected plane and to redirect it outward, multi-element optical sensors which sensors are disposed so as to receive the redirected reflected plane; and a decoder connected to the multi-element optical sensors so as to receive signals there from, which decoder allows parallel data reading of all of the tracks of the element simultaneously.
As can be seen from the accompanying Figures 1 and 2, any or all sensors can be designed to sense any of one or all the layers of disc and may be projected to any radius.
The blue colored fonts explain the difference between the prior art patent (US5523995) and the instant invention. The prior US patent involves the application of a single sensor of "single beam multi element type". On the contrary, the instant invention claims the application of n number of sensors, precisely, "multi sensors", instead of a single sensor. But type of sensor is not restricted, it may be any type. Further, the prior US patent is suitable only for single layered optical devices, whereas, the instant invention is applicable for multi-layered optical devices as well.
In the prior US patent the sizes of head is meant for "single track pitch" and so the sensor type, as explained hereinbefore, is capable to read the information serially track wise". In other words, the size of head will always be meant for single track pitch only. On the contrary, as in the instant invention, once the size of head is approximately equal to the

disc then this head necessarily has a single beam source. In that event this single beam becomes sufficient to illuminate the full surface of disc in a single glow. This head necessarily has multi elements to receive the redirected reflected light from the various track locations of the disc simultaneously, and the response of these elements against the reflected light 1 reproduces the information, which is stored in the disc. So, all the track locations of the disc are illuminated at once, in a single glow of a single beam. Hence, all the elements of the head receives "redirected reflected light", which when decoded is synonymous to stored information of the disc", at once, in a single glow, and consequently, each response of all the elements are processed together at the same moment, so total time required to fetch the full information of the disc gets reduced drastically. The data processing of "all the elements" of the single head is parallel. The output of each sensor apart from element is processed together facilitating, reading/fetching data stored optically from either single or multi-layered optical devices reasonably quickly.
The instant invention may include multiple heads (lasers) and multiple elements for reading data from a disc. This can be read from one or more layers (optional) parallel.
The present invention has been described with reference to some drawings and preferred embodiments purely for the sake of understanding and not by way of any limitation and the present invention includes all legitimate developments within the scope of what has been described hereinbefore and what has been claimed hereinafter.

We claim
1. A mechanism for reading/fetching data stored optically from optical devices reasonably quickly, said data being stored in elements having surfaces and plurality of track locations, said mechanism including electromagnetic radiation source; means adapted for receiving radiation output , generated by the electromagnetic radiation source and for spreading it in plane(s), means adapted

for redirecting the piane(s) to the elements and receiving the piane(s) reflected off from the surfaces of said elements and for redirecting such plane(s) outward,wherein there are provided multi-element optical sensors, adapted for illuminating all the track locations in one glow and also configured for receiving the redirected reflected plane(s) from the said plurality of track locations simultaneously, said sensors being operatively connected to decoding means for receiving the consequential signals from said multi-element optical sensors and reproducing the same, thereby facilitating parallel data reading of all of the track locations simultaneously, ensuring reading/fetching data, stored optically, reasonably quickly.
2. The mechanism as claimed in claim 1, wherein said means adapted for receiving radiation output comprises an optical coupling system.
3. The mechanism as claimed in any of claims 1 or 2 wherein said means adapted for receiving the plane(s ) reflected off from the surface of said elements comprises a prism.
4. The mechanism as claimed in any preceding claim, wherein said decoding means compjises a decoder, adapted for receiving signals from said multi-element sensors and for reproducing them, for facilitating reading/fetching data stored optically.
5. The mechanism as claimed in any preceding claim, comprising multiple heads such as lasers and multiple elements for reading data from an optical disc.

6. The mechanism as claimed in any preceding claim,wherein data can be read from one or more parallel layers.
7. The mechanism as claimed in any preceding claim wherein, the size of the head is approximately equal to that of the optical device.

8. The mechanism as claimed in any preceding claim wherein the optical device is a multi-layered optical disc.
9. A method for reading/fetching data stored optically from optical devices reasonably quickly, said data being stored in elements having surfaces and plurality of track locations, said method including generating radiation output by
an electromagnetic radiation source; receiving radiation output by the
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electromagnetic radiation source and spreading it in plane(s) by suitable means, redirecting the plane(s) to the elements and receiving the plane(s) reflected off from the surfaces of said elements and thereafter, redirecting such plane(s) outward by suitable means, wherein said method further comprises illuminating all the track locations in one glow and receiving the redirected reflected plane(s) from the said plurality of track locations simultaneously by means of multielement sensors , and operatively connecting said sensors to decoding means for receiving the consequential signals from said multi-element optical sensors and reproducing the same, thereby facilitating parallel data reading of all of the track locations simultaneously, ensuring reading/fetching data, stored optically, reasonably quickly.
10. The mechanism, as claimed in any of the claims 1 to 7 wherein the optical device is a single layered optical device.