Object, image data, image data transmission method, card,...

Object, image data, image data transmission method, card,...

OCR sheet-inputting device, OCR sheet, program for inputting...

Optical card for data storage for use in a data recording and re

Optical card having a mirror section with a pair of auxiliary gu

Optical card having alternative information record region

Optical card having optical grooves for access and wobbled marks

Optical record medium including a data region, an identification

Optical recording medium with region for identifying defective w

Optical signature system and method

Optical signature system destruction systems and methods

Optically readable code and method for communication

Optically readable coded target

Optically readable tag

Optically trackable tag

Optimal error-detecting, error-correcting and other coding and p

Orientation-indicating cyclic position codes

Orientation-indicating cyclic position codes

Orientation-indicating cyclic positional codes

Orientation-indicating machine readable coded data