Title:
音楽とその他のメディアにデジタル透かしを用いる方法およびシステム
Document Type and Number:
Japanese Patent JP4598279
Kind Code:
B2
Abstract:
A long pseudo-random binary number, such as 128 bits, is used to represent a small increment of money (e.g., a penny, a nickel, a dime, a quarter, etc.). The long length and random character of the number essentially makes each number unique. These numbers are issued by banks or other institutions in exchange for other forms of money (e.g., cash, check, credit card, or other electronic money). The bank tracks the numbers it has issued. A consumer can transmit one or more of these numbers to a vendor to pay for goods or services. The vendor relays the numbers to a server computer (e.g., at the issuing institution, as may be indicated by a bit string appended to each binary number) to determine whether such numbers have been validly issued. If the server confirms they are valid, it informs the vendor, who then completes the transaction. The vendor's account is credited by the institution accordingly. The server marks these numbers as spent, so that if these same numbers are later presented to the server, they will not be honored as valid numbers. The long lengths of the bit strings makes hacking impractical. The system can be arranged to provide anonymity since there is no need to identify the customer in order for the merchant to redeem the tokens.
More Like This:
Inventors:
Rose, Joffrey, Bee.
Davis, Bruce, Elle.
Kerr, Jay., Scott
Davis, Bruce, Elle.
Kerr, Jay., Scott
Application Number:
JP2000618895A
Publication Date:
December 15, 2010
Filing Date:
May 18, 2000
Export Citation:
Assignee:
DigiMark Corporation
International Classes:
G06Q30/02; G06T1/00; G07D7/12; G09C5/00; H04L9/32; H04N1/32; H04N1/387; H04N7/08; H04N7/081; H04N7/16
Domestic Patent References:
| JP10163988A | ||||
| JP8289042A | ||||
| JP10069496A | ||||
| JP7262205A | ||||
| JP10191468A | ||||
| JP10290204A | ||||
| JP9214385A | ||||
| JP8249343A | ||||
| JP11007241A | ||||
| JP2002514318A |
Foreign References:
| WO1998026584A1 | ||||
| WO1998034216A1 |
Other References:
木村 岳史,注目の新技術 Technology Finder,日経マルチメディア 第34号 NIKKEI MULTIMEDIA for Business,日本,日経BP社 Nikkei Business Publications,Inc.,1998年 4月15日,P.76-P.81
Attorney, Agent or Firm:
Yuichi Yamada
Yasuhito Suzuki
Yasuhito Suzuki