Title:
RECORDED MATTER AND RECORDING/REPRODUCING DEVICE
Document Type and Number:
Japanese Patent JP3875302
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the forgery of a recorded matter by superimposing and recording additional information related with prescribed information on an image for certification as a pattern unrecognizable visually but recognizable through a predetermined method.
SOLUTION: A face photograph part 101 of an owner is embedded in an ID card 100, an ID number 102 peculiar for the owner, issuing person name 103 and logo mark 104 of an issuing person or the like are recorded, and a stripe-shaped magnetic recording part 105 is provided. An additional information recording area 106 is set at one part of the face photograph part 101 and in this area 106, the code information of the same mark as the logo mark 104 and the ID number 102 is recorded while being superimposed on the face photograph part 101 as the pattern unrecognizable visually but recognizable through a filter for reproduction. Namely, the recorded contents in the additional information recording area 106 can not be visually recognized but can be visually recognized by covering this area with a filter 108 for reproduction.
Inventors:
Hidekazu Sekizawa
Naofumi Yamamoto
Haruko Kawakami
Naofumi Yamamoto
Haruko Kawakami
Application Number:
JP5975096A
Publication Date:
January 31, 2007
Filing Date:
March 15, 1996
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
B42D15/10; G06K19/10; B41M3/14; G03G21/04; G06K1/12; G06K7/12; G06K17/00; (IPC1-7): G06K19/10; B41M3/14; B42D15/10; G03G21/04; G06K1/12; G06K7/12; G06K17/00
Domestic Patent References:
| JP7123244A | ||||
| JP5262086A | ||||
| JP1285390A | ||||
| JP7266755A | ||||
| JP7068983A | ||||
| JP6110988A | ||||
| JP58024497A |
Attorney, Agent or Firm:
Takehiko Suzue