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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0056547 (1993-05-05) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 159 인용 특허 : 0 |
A personal data/time notary device is embodied in a token device such as a “smart card”. The portable notary device includes an input/output (I/O) port, which is coupled to a single integrated circuit chip. The I/O port may be coupled to a conventional smart card reading device which in turn is coup
A portable token device fabricated on a portable medium and sized so as to be readily carried or worn by a user comprising: a token device medium substantially credit card-sized so as to be readily carried or worn by a user and having fabricated therein: a secure storage device for storing a user\s
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