Methods and apparatus for making writing legible by a machine fo

Details Methods and apparatus for making writing legible by a machine fo Methods and apparatus for making writing legible by a machine fo

1976-03-23

1978-03-28

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

235487, 3401463Z, 3401463Y, G06K 918

Patent

active

040817911

ABSTRACT:
A support element is disclosed for conveying encoded information, such as arabic numerals, formed of detectable material in presentable form for automatic decoding. The support surface is characterized by one or more information displays each of which is patterned from a pair of adjacent quadrilaterals preferably joined along a common segment to form a grid, each display being characterized by the detectable material overlying selected grid segments. A plurality of displays may be aligned on the support one behind the other such that corresponding grid segments from a pair of adjacent displays are inscribed within one of three parallel grid sampling channels delimiting all the segments of at least one grid. Automatic detection of the encoded numerals is accomplished by traversing the displays with a suitable sensor in one direction within the boundaries of each of the sampling channels. Where the displays are to be hand written the detectable material may be provided by preprinted or impressed supports. Ordinary writing devices may be used for marking the selected grid segments to encode the displays.

REFERENCES:
patent: 2937283 (1960-05-01), Oliver
patent: 2963220 (1960-12-01), Kosten et al.
patent: 3011905 (1961-12-01), Newman
patent: 3381274 (1968-04-01), Quade et al.
patent: 3485168 (1969-12-01), Martinson
patent: 3559170 (1971-01-01), Barnes
patent: 3731276 (1973-05-01), Rayfield
patent: 3733468 (1973-05-01), Eberly
patent: 3786237 (1974-01-01), Postal

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