An electronic assembly may be contained in a label that performs time-temperature integration (TTI) and indicates that time and/or temperature levels have been reached that may compromise the quality, shelf life, or safety of the item to which the label is affixed. The label may be used on a wide variety...http://www.google.fr/patents/US7248147?utm_source=gb-gplus-shareBrevet US7248147 - Perishable product electronic label including time and temperature measurement
Perishable product electronic label including time and temperature measurement