However , it was not until January 2009 that NEC Corporation officially demonstrated their product .
This mobile translation system could recognize 50,000 Japanese words and 30,000 English words , and could be used for simple translations when travelling .
It was not until January 2009 that NEC Corporation officially demonstrated their product .
This mobile translation system could recognize 50,000 Japanese words and 30,000 English words , and could be used for simple translations when travelling .