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Código BIDI

Los código BIDI son un tipo de código de barras bidimensionales de algoritmo cerrado que necesitan licencia para poder ser creados.[1]​ Para leerlos es necesario una aplicación que la empresa que explota la licencia proporciona a los usuarios de forma controlada.[1][2]​ Los BIDI se pueden utilizar de forma privada y suelen tener una orientación comercial y un fin lucrativo.[2][1]

Origen

Fueron creados por las empresas de telefonía móvil (Movistar, Orange, Vodafone,...[1]​) en un primer momento para hacer propaganda de sus productos. Posteriormente cada una intentó imponer su propio código en el mercado.[2]

Comparación con código QR

Los códigos BIDI son similares a los códigos QR pero con algunas diferencias:

  • Menor capacidad de almacenamiento.[2]
  • Más complejos de reconocer y leer.[2]
  • Carecen de los cuadrados en tres de sus esquinas (las dos superiores y la inferior izquierda) que tiene los QR.[2]
  • Aunque existen varios lectores que permiten la lectura de BIDI con dispositivos móviles, no todos los lectores soportan este formato debido a su coste y menor difusión.[2]
  • Mayor densidad de información.[2]
  • Licencia de uso cerrada. A diferencia del los QR que son de código abierto y de uso absolutamente gratuito.[2]

Referencias

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