I am working with Anoto technology as part of my research for the Integrated Systems Laboratory at Karlsruhe University. It is reasearch code, not end-user code. It is intended to assist people wishing to understand this technology, and is not intended for any other purpose. It is minimally documented, and may have bugs.
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This paper is standard paper with printed microdots on its surface. These dots are nearly invisible to the human eye. However, the smartpen can easily see these dots and uses them to know which page you are writing on and the exact location on that page. The smartpen can even see these dots through the ink you write on your pages.
The dot pattern identifies the specific page and locations on the page of the notes you write. Your smartpen uses the dot pattern in a way similar to a geographical positioning system GPS. But, instead of identifying locations on land, it finds locations on paper and stores your writing as digital ink using those locations.
Using this patented dot-positioning system DPS , the smartpen precisely tracks its own movement on paper. As a result, anything you write — words, numbers or drawings — can be stored, recognized, and intelligently responded to by the smartpen. The area of the entire Anoto dot pattern is huge, and represents a piece of paper the combined size of Europe and Asia.
Livescribe Dot Paper is based on a portion of this dot pattern. To perform its many operations, your smartpen requires Livescribe Dot Paper. The microdot pattern on each page is based on technology from Anoto AB. This dot pattern consists of small dots micrometers in diameter arranged with a spacing of approximately 0. The dot pattern overlays an imaginary square grid. The dots are slightly displaced from the grid, with each dot in one of four possible positions, forming the proprietary Anoto dot pattern.
Parent topic: About Your Livescribe Smartpen.
A brief technical introduction to Anoto technology
Anoto Group AB former C Technologies is a Swedish cloud based software provider SaaS based on its patented dot pattern technology which provides a methodology for accumulating digital big data from analogue inputs. With around 45 employees, the company is headquartered in Stockholm and has offices in Seoul, London, Lisbon, Singapore and Boston. Anoto's main product is the Anoto Digital Pen, a combination of ordinary ink pen and a digital camera and supporting hardware that digitally records everything written with the pen. It works by recognizing a special non-repeating dot pattern printed on the paper. The non-repeating nature of the pattern means that the pen is able to determine which page is being written on, and where on the page the pen is. The dot pattern can be printed on a professional offset printing press or on a laser printer. Dots are printed in black; other colors of ink are invisible to the pen's IR sensor.
About Livescribe Dot Paper
This paper is standard paper with printed microdots on its surface. These dots are nearly invisible to the human eye. However, the smartpen can easily see these dots and uses them to know which page you are writing on and the exact location on that page. The smartpen can even see these dots through the ink you write on your pages. The dot pattern identifies the specific page and locations on the page of the notes you write. Your smartpen uses the dot pattern in a way similar to a geographical positioning system GPS.
US7175095B2 - Coding pattern - Google Patents
A digital pen looks, feels and writes like a normal ballpoint pen. However, it contains an integrated digital camera, an advanced image microprocessor and a mobile communications device for wireless connection. Using a digital pen you can capture, store and then securely send the handwriting, enabling you to easily convert ink to digital data — right away. In combination with a surface with the Anoto dot pattern printed on it, a digital pen starts digitizing handwritten text the moment you put pen to the surface.
Pattern & Paper