Mobile phone with an encryption function
US7210044B2 · kind B2 · utility
5Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2003 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Jun 29, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/72403
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A mobile phone has an encryption module, a decryption module, an antenna, a microphone, a speaker, a main memory, and a memory connector for connecting to an expansion memory. When the expansion memory connects to the memory connector to store a document received from the mobile phone, the encryption module first generates a crypto-key and then encrypts the document into a ciphered document by utilizing the crypto-key. The ciphered document is stored in the expansion memory, and crypto-key is restricted from being stored in the main memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.