Method and apparatus for capturing information in drawing or writing
First Claim
1. A method of identifying information as writing or drawing is carried out, comprising the steps of:
- writing or drawing in relation to a surface having regularly shaped and spaced marks using a tip of an instrument which causes a trail to be left which can be traced,continually sensing for data relating to the tip crossing any of the marks by receiving light which varies as the marks are crossed the sensing being carried out substantially independent of the trail being left,storing the data in an electronic storage device as the data is continually sensed, andanalyzing the data on a temporal basis, in which values dependent on the number of mark crossings per unit time are derived for identifying the said information.
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Accused Products
Abstract
Obtaining data for signature recognition or data entry are relatively expensive because the apparatus used at each entry point is fairly complex. The present invention employs a relatively inexpensive pen which may be a ball pen with a transparent ball, an ink reservoir, a light sensitive device and an analyzing circuit. Either the circuit or apparatus coupled to the pen is arranged to analyze, on a temporal basis, light received by the light sensitive device which has been modulated as the pen is used to write on closely lined paper. Alternatively, the pen may contain storage and transmit data for external analysis. The analysis can be used, for example, in signature verification or data entry. Other forms of inexpensive devices for obtaining data using pens writing on lined paper are described.
91 Citations
15 Claims
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1. A method of identifying information as writing or drawing is carried out, comprising the steps of:
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writing or drawing in relation to a surface having regularly shaped and spaced marks using a tip of an instrument which causes a trail to be left which can be traced, continually sensing for data relating to the tip crossing any of the marks by receiving light which varies as the marks are crossed the sensing being carried out substantially independent of the trail being left, storing the data in an electronic storage device as the data is continually sensed, and analyzing the data on a temporal basis, in which values dependent on the number of mark crossings per unit time are derived for identifying the said information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of identifying information as writing or drawing is carried out, comprising the steps of:
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projecting light to provide a predetermined arrangement of marks at a surface where the marks are regularly spaced and the marks are regular in shape, writing or drawing in relation to the said surface marked in a predetermined way using a tip of an instrument which causes a trail to be left which can be traced, continually sensing for data relating to the tip crossing any of the marks by receiving light which varies as the marks are crossed the sensing being carried out substantially independent of the trail left, storing the data in an electronic storage device as the data is continually sensed, electronically analyzing the mark crossings on a temporal basis comprising deriving the values dependent on the number of mark crossings per unit time, and identifying said information using variations in the said values. - View Dependent Claims (13, 14, 15)
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Specification