User interface tag for use in processing a service on a scannable document
US8640019B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2009 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Aug 18, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/3269
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A user interface tag for use in processing a service on a scannable document is provided. A printable surface is on one side of the scannable document and an adhesive surface is on another side of the scannable document. The printable surface further includes a printed data field specified substantially within the printable surface, including machine-readable marks of digital data encoding a service code and a user identification number; and a printed rectilinear border surrounding the printed data field to define a rectilinear iconic representation. A scanned representation of the machine-readable marks is located by identifying the printed rectilinear border using corner candidates oriented in diametric opposition from among connected components identified on the document and the scanned representation of the machine-readable marks are decoded from the rectilinear iconic representation to specify the user identification number and the service code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.