A Survey on Barcode Generation and Modulation Techniques

Between handheld electronic devices in wireless data transmission for use the concept of HC2D barcodes is of great relevance. In a typical setup, through a images series on the LCD there can be transferred any file on a cell phone to a second cell phone through the camera of the second cell phone which are then captured and decoded. In this study, in HC2D barcodes a new approach for data modulation is introduced, and to other standard methods of barcode modulation its performance is evaluated in comparison. In this new approach, within neighboring pixels of an LCD over adjacent blur, and light leakage, there is used the orthogonal frequency-division multiplexing (OFDM) modulation together with differential phase shift keying (DPSK).