Concentric-ring circular bar code
First Claim
1. A circular bar code comprising:
- at least one data ring, each data ring comprising a plurality of data cells arranged side-by-side in a circle;
a locator ring, the locator ring being a solid color and conveying the location and size of the bar code to a reading device; and
a locator cell conveying the orientation of the bar code to the reading device;
wherein the locator ring and the at least one data ring are circular, have a finite width, and are concentric, without any gap between adjacent rings; and
wherein the bar code has a capacity computed as;
Capacity=((number of data rings)×
(number of data cells per ring))−
1.
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Accused Products
Abstract
A circular bar code includes at least one circular data ring having a plurality of data cells arranged side-by-side in a circle, a circular locator ring of a solid color and conveying the location and size of the bar code to a reading device; and a locator cell conveying the orientation of the bar code to the reading device. The locator ring and the at least one data ring have a finite width, and are concentric, without any gap between adjacent rings. The locator ring can be either inside or outside of the at least one data ring. The locator cell is defined by a gap in the locator ring and a single data cell located in a data ring adjacent the locator ring. The circumferential and radial dimensions of the locator cell convey the data cell size to the reading device.
19 Citations
18 Claims
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1. A circular bar code comprising:
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at least one data ring, each data ring comprising a plurality of data cells arranged side-by-side in a circle; a locator ring, the locator ring being a solid color and conveying the location and size of the bar code to a reading device; and a locator cell conveying the orientation of the bar code to the reading device; wherein the locator ring and the at least one data ring are circular, have a finite width, and are concentric, without any gap between adjacent rings; and wherein the bar code has a capacity computed as;
Capacity=((number of data rings)×
(number of data cells per ring))−
1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A circular bar code comprising:
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at least one data ring, each data ring comprising a plurality of data cells arranged side-by-side in a circle; means for conveying the location and size of the bar code to a reading device; and means for conveying the orientation of the bar code to the reading device; wherein the at least one data ring is circular and has a finite width; and wherein the bar code has a capacity computed as;
Capacity=((number of data rings)×
(number of data cells per ring))−
1. - View Dependent Claims (11, 12)
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13. A circular bar code comprising:
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at least one data ring, each data ring comprising a plurality of data cells arranged side-by-side in a circle; a locator ring, the locator ring being a solid color and conveying the location and size of the bar code to a reading device, the locator ring and the at least one data ring together defining a symbol area; inner and outer quiet regions immediately inside and outside the symbol area for providing background contrast to enable the reading device to properly locate, identify, and read data in the bar code; and a locator cell conveying the orientation of the bar code to the reading device, wherein the locator cell is defined by a gap in the locator ring and a single data cell located in a data ring adjacent the locator ring, the single data cell being adjacent the gap and the same color as the locator ring, and wherein the circumferential and radial dimensions of the locator cell convey the data cell size to the reading device; wherein the locator ring and the at least one data ring are circular, have a finite width, and are concentric, without any gap between adjacent rings; and wherein the bar code has a capacity computed as;
Capacity=((number of data rings)×
(number of data cells per ring))−
1. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification