Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
164 words
A stereophonic disc record having a single spiral V-shaped groove adapted to receive a stylus for travel therein as the record is rotated with respect to the stylus, the two side walls of sais groove each being at an angle of substantially 45* with respect to the record surface and at substantially 90* to each other, at least a recognizable portion of said groove having modulated deformation means on the walls thereof representative of a first audio signal for causing said stylus to describe, as said portion of the goove moves past the stylus, a circular motion in a clockwise direction in the plane perpendicular to the direction of motion between the record and stylus, and at least a recognizable portion of said groove having modulated deformation means on the walls thereof representative of a second audio signal for causing said stylus to describe, as said portion of the groove moves past the stylus, a circular motion in a counterclockwise direction in said plane.
Claim 2
Dependent Claim
164 words
A stereophonic disc record having a single spiral V-shaped groove adapted to receive a stylus for travel therein as the record is rotated with respect to the stylus, the two side walls of sais groove each being at an angle of substantially 45* with respect to the record surface and at substantially 90* to each other, at least a recognizable portion of said groove having modulated deformation means on the walls thereof representative of a first audio signal for causing said stylus to describe, as said portion of the goove moves past the stylus, a circular motion in a clockwise direction in the plane perpendicular to the direction of motion between the record and stylus, and at least a recognizable portion of said groove having modulated deformation means on the walls thereof representative of a second audio signal for causing said stylus to describe, as said portion of the groove moves past the stylus, a circular motion in a counterclockwise direction in said plane.
Claim 3
Dependent Claim
51 words
A stereophonic disc record according to claim 1 wherein at least a recognizable portion of said groove has modulated deformation means on at leas one of the walls thereof representative of a third audio signal for causing said stylus to move in a direction perpendicular to said at least one wall.
Claim 4
Dependent Claim
54 words
A stereophonic disc record according to claim 1 wherein at leAst one wall of at least one of said portions of said groove has further modulated deformation means thereon representative of a third audio signal for imparting to said stylus a component of motion in a direction perpendicular to said at least one wall.
Claim 5
Dependent Claim
158 words
A stereophonic disc record according to claim 1 wherein at least a recognizable portion of said groove has modulated deformation means on at least one of the walls thereof representative of a third directional audio signal for causing said stylus to move, as said portion of the groove moves past the stylus, in a direction perpendicular to said at least one wall, at least a recognizable portion of said groove has modulated deformation means on the other wall thereof representative of a fourth audio signal for causing said stylus to move, as said portion of the groove moves past the stylus, in a direction perpendicular to said other wall, and wherein said first and second audio signals are intended for reproduction at the left back and right back corners, respectively, of a listening area, and said third and fourth audio signals are intended for reproduction at the left front and right front corners, respectively, of a listening area.