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Anti-Clone Design for Cellular Phone Disclosure Number: IPCOM000004772D
Original Publication Date: 2001-May-11
Included in the Prior Art Database: 2001-May-11

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Yung Weng Fan Se Toh Wai Tuck


Phone cloning and modification has been problem for cellular telephone manufacturers. Cellular telephone market segmentation and price discrimination strategies affect the prices that can vary greatly in different regions and countries. Typically, distributors buy cheaper phones in one market (e.g., Europe) and export them to an alternative market (e.g., China) that has higher selling price. The cellular telephones are sold in the alternative market after modification to support local languages. In China, this is achieved by inserting an Asian Character Font Memory chip (CGROM) and thereafter effecting software reconfiguration to support the CGROM..