DISPOSITIVO PORTATIL PARA VALIDAR LA PARTICIPACION DE UN INDIVIDUO EN UNA OPERACION QUE IMPLICA LA LECTURA DE UNA INFORMACION CIFRADA EN UN MEDIO DE DIFUSION MASIVO

摘要

The device (1) validates partic. in a promotion which requires gathering of coded data from a mass communication medium. The device has an optical interface (R) or key pad (8) to allow entry of transmitted data. A processor (4), running a stored (12) program, validates partic. based on numbers entered. A memory (12), managed by the processor, stores processed numbers for a pre-determined period of time. A display (6) shows an output code derived from the entered numbers.