US Patent No: 5,265,162

Number of patents in Portfolio can not be more than 2000

Portable pin card

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ATTORNEY / AGENT: (SPONSORED)
 

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Abstract

A portable Personal Identification Card allows a cardholder to enter a PIN code into his card at a location remote from an authorization terminal. In an alternate embodiment, a PIN code may be entered at the authorization terminal. The authorization terminal reads the cardholder's account number from the PIN card. The account number is transmitted to a central computer which uses this number to index into memory to find a personal identification number and encryption parameters. The central computer transmits a pseudo-random number to the PIN Card. Both the PIN Card and the central computer perform an encryption of a function of the corresponding personal identification number and pseudo-random number to derive a CGIPIN (Computer Generated Image of the PIN). If the CGIPIN transmitted from the PIN card matches the CGIPIN of the central computer, access is authorized.

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First Claim

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Patent Owner(s)

  • Assignment data not available. Check USPTO

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Belfield, Robert 104 Benson Ave., Sayville, NY 11782 2 162
Bush, George 1675 York Ave., Suite 34B, New York, NY 10128 8 240
Ross, Estelle 41 Buxton St., Lido Beach, NY 11561 3 173

Cited Art

Patent Info (Count) # Cites Year
 
ROSS; ESTELLE (1)
5,130,519 Portable pin card 91 1990

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
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6,594,376 Tokenless electronic transaction system 32 2002
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6,985,608 Tokenless electronic transaction system 10 2003
7,620,605 System and method for processing tokenless biometric electronic transmissions using an electronic rule module clearinghouse 13 2005
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STATSIGNAL IPC (1)
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Other [Check patent profile for assignment information] (5)
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8,452,680 Biometric financial transaction system and method 0 2011