Patent ID: 8777107

Claim:
A roller laser encoding apparatus, comprising a barcode formed on a curved surface to form a curved barcode surface, a motor for driving said curved barcode surface to revolve, and a barcode decoding device, wherein said barcode decoding device comprises a laser transmitter, a laser receiver, and an optoelectronic converter, and an encoding processor, wherein said barcode formed on a curved surface is a sequence of different color laser reflectivity, wherein when said laser transmitter emits a laser beam toward said curved barcode surface, said laser beam is reflected by said curved barcode surface to form a reflected laser beam, wherein after said reflected laser beam is received by said laser receiver as a light signal, said optoelectronic converter converts said light signal of said reflected laser beam into a voltage signal, wherein after said curved barcode surface is rotated in one revolution, said encoding processor collects said voltage signals from said optoelectronic converter in sequent and generates a sequence of voltage value in response to said sequence of different color laser reflectivity of said curved barcode surface so as to output a decoding signal of said curved barcode surface.