Loading patent…
AssigneeImi Technology, S.R.O.
InventorsIvan {hacek over (S)}afárik, Milan Zachar, Ivan {hacek over (S)}útovský
Estimating the term…
Subject-matter is that between an inner edge and an outer edge of a lead-in area, are created by mechanical means grooves in the form of concentric circles around the central axis with the profile of the letter “V” in the protective layer, wherein these grooves have peaks and edges are created in such a way that the groove with the largest possible diameter of the circle does not exceed the inner part of the outer edge and the groove with the smallest possible diameter of the circle does not exceed the inner edge of the lead-in area, wherein the density of the grooves is such that edges of the grooves are touching each other on the surface of the protective layer and between the individual edges of the grooves there is no area undamaged by the grooves. Non-standard audio discs and video discs are manufactured by pressing from the matrix, they contain lead-in area data area and lead-out area and in the area with the radius from 18.00+1 mm to 23.50+1 mm are provided with the zone of the mechanical protection, which contains a set of grooves in the form of concentric circles, with the profile of the letter “V”, which are arranged closely to each other in such a way, that their upper edges are touching.
A method of protection of recorded storage media, such as an audio CD and a film DVD against their unauthorised copying and infringement of copyright by application of a protection element onto an optical storage medium, which in a cross-section contains a protective layer of polycarbonate, a recording layer with one or more recording layers, an adhesive layer and a printing layer and which contains a central hole arranged around the central axis, a lead-in area bordered by an outer edge and an inner edge, area for data recording and a lead-out area, wherein between the inner edge and the outer edge of the lead-in area, are created grooves in the form of concentric circles around a central axis with a profile of the letter “V” into a protective layer, wherein the said grooves have peaks and edges and are created in such a way that the groove with the largest possible diameter of the circle does not exceed the inner part of the outer edge and the groove with the smallest possible diameter of the circle does not exceed the inner edge of the lead-in area, wherein the density of the grooves is such that the edges of the grooves touch each other on the surface of the protective layer and between the individual edges of the grooves there is no area undamaged by the grooves.
A non-standard optical audio disc with a protective element against loading and playing in personal computers created by a method of protection of recorded storage media, such as an audio CD and a film DVD against their unauthorised copying and infringement of copyright by application of a protection element onto an optical storage medium, which in a cross-section contains a protective layer of polycarbonate, a recording layer with one or more recording layers, an adhesive layer and a printing layer and which contains a central hole arranged around the central axis, a lead-in area bordered by an outer edge and an inner edge, area for data recording and a lead-out area, wherein between the inner edge and the outer edge of the lead-in area, are created grooves in the form of concentric circles around a central axis with a profile of the letter “V” into a protective layer, wherein the said grooves have peaks and edges and are created in such a way that the groove with the largest possible diameter of the circle does not exceed the inner art of the outer edge and the groove with smallest possible diameter of the circle does not exceed the inner edge of the lead-in area, wherein the density of the groove is such that the edges of the grooves touch each other on the surface of the protective layer and between the individual edges of the grooves there is no area undamaged by the grooves, manufactured by pressing from a matrix containing the lead-in area, the data area and the lead-out area wherein in the area with the radius from 18.00+1 mm to 23.50+1 mm is provided with a zone of the mechanical protection, which contains a set of grooves in the form of concentric circles with the profile of the letter “V”, which are arranged closely to each other in such a way that their upper edges touch each other.
A non-standard optical video disc with a protective element against loading and playing in personal computers created by a method of protection of recorded storage media, such as an audio CD and a film DVD against their unauthorised copying and infringement of copyright by application of a protection element onto an optical storage medium, which in a cross-section contains a protective layer of polycarbonate, a recording layer with one or more recording layers, an adhesive layer and a printing layer and which contains a central hole arranged around the central axis, a lead-in area bordered by an outer edge and an inner edge, area for data recording and a lead-out area, wherein between the inner edge and the outer edge of the lead-in area, are created grooves in the form of concentric circles around a central axis with a profile of the letter “V” into a protective layer, wherein the said grooves have peaks and edges and are created in such a way that the groove with the largest possible diameter of the circle does not exceed the inner part of the outer edge and the groove with the smallest possible diameter of the circle does not exceed the inner edge of the lead-in area, wherein the density of the grooves is such that the edges of the grooves touch each other on the surface of the protective layer and between the individual edges of the grooves there is no area undamaged by the grooves, manufactured by pressing from the matrix containing the lead-in area the data area and the lead-out area wherein in the areas with the radius from 18.00+1 mm to 23.50+1 mm is provided with the zone of the mechanical protection, which contains a set of grooves in the form of concentric circles with the profile of the letter “V”, which are arranged closely to each other in such a way, that their upper edges touch each other.
Dependencies are inferred from the claim text.