Information storage and retrieval

• US 3,922,074 A
• Filed: 09/24/1973
• Issued: 11/25/1975
• Est. Priority Date: 09/25/1972
• Status: Expired due to Term

• Current Assignee: Akio Miyauchi, Yoshizo Ikegami
• Original Assignee: Akio Miyauchi, Yoshizo Ikegami
• Inventors: Ikegami, Yoshizo, Miyauchi, Akio
• Primary Examiner(s): Stern, Ronald J.
• Assistant Examiner(s): Henry, Jon W.
• Application Number:
  US05/399,898
• Time in Patent Office: 792 Days
• Field of Search: 2B/2700 350/167,130,131,320 354/110,115,120,123,125,101 352/81 35/2,9H 40/137
• US Class Current: 380/54
• CPC Class Codes: B42D 25/00 Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof printing processes to produce identification or security features B41M3/14
• CPC Class Codes: B42D 25/23 Identity cards
• CPC Class Codes: B42D 25/405 Marking
• CPC Class Codes: G03B 41/00 Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor
• CPC Class Codes: G07D 7/0032 using holograms
• CPC Class Codes: G07D 7/128 Viewing devices
• CPC Class Codes: Y10S 359/90 Methods

Abstract

Identifying information is stored or recorded on a recording element and camouflaged by recording the identifying information on a recording element through an information transformation medium such as a lenticular plate and then camouflaging the recorded information by recording the information on the same recording element through the information transformation medium, disposed at a different position than that used in recording the identifying information thereby concealing the identifying information recorded on the recording element. The concealed information thus storaged or recorded can be identified by observing the recording element through the same information transformation medium at the same position used in the initial recording of the identifying information.

Claims

1. A method of information handling including producing an element having camouflaged information recorded thereon which comprises:

a first recording through an information transformation medium comprising a lenticular plate having truncated semi-conical lenses with a common projected apex, of first information from an information-carrying medium onto a recording element comprising a photosensitive or electrophotosensitive element, said information-carrying medium, said information transformation medium and said recording element being positioned relative to each other in a first spatial configuration, a second recording through said information transformation medium of camouflaging or noise information from said information-carrying medium onto said recording element, said information-carrying medium, said information transformation medium and said recording element for said recording being positioned relative to each other in a second spatial configuration achieved by rotating said lenticular plate around the common projected apex to a position different than on said first spatial position, and wherein, an image-forming optical system is interposed between said information-carrying medium and said information transformation medium during said first and second recordings.

2. The method of claim 1, wherein said camouflaged recorded information is retrieved by the steps of using the same information transformation medium as used for recording the information in the first spatial configuration of said recording element and said information transformation medium as used in recording said information.