Linear barcodes, also known as one dimensional barcodes (1D barcodes), have many attributes that make them a good choice for many applications:

(1) Although linear barcodes hold a smaller amount of data than their 2D counterparts, this information is 'spread' over the whole height of the barcode, giving it a high degree of redundancy. Vertical redundancy allows a barcode with printing defects, such as spots or voids, to still be read.

(2) Increasing the height of a linear barcode (and therefore its redundancy) also makes it easier to scan, which is advantageous for applications that require motion tolerance, self-service, or long distance decoding.

(3) Linear barcodes have the perfect level of complexity for low capacity (up to about 15 characters) applications like serial numbers. This is why linear barcode symbologies (UPC, EAN, etc.) are commonly used in retail.

(4) Because 1D scanning technology has been thoroughly refined, linear scanners are less expensive than comparable 2D digital imagers.

There are many types of linear barcodes, including:

• UPC
• Code 39
• Code 128
• CPC Binary
• DUN 14
• EAN
• Pharmacode
• OneCode
• Plessey
• MSI

For decoding linear barcodes, users purchase devices like the:

These devices have the capabilities to read UPC, Code 39, Code 128, etc.

Call ADC at (800) 300-3584 to discuss how linear barcode technologies can be used and integrated into your application.