Diffuse surface illumination apparatus and methods
Diffused metal coded product
Digital cinema projector watermarking system and method
Digital data carrier
Digital data processing
Digital data reader of digital data recording sheet
Digital data storage apparatus
Digital data storage apparatus
Digital data systems, apparatus, and methods
Digital decoding of retrospective pulse modulation
Digital encoding and electronic scanning of drink cups
Digital encoding of images of skin-covered body parts
Digital filter
Digital image trapping system
Digital information carrier
Digital input scanner guidance system
Digital labels for product authentication
Digital media recognition apparatus and methods
Digital polarization filter
Digital reference matrix for word verification