| 摘要 |
The document has a region (108) for forming mediums (110) for optical modulation of information on an incident radiation (106,128). A radiation-sensitive matrix (112,114) arranged behind the region collects the optical information. The radiation-sensitive matrix is sensitive to certain frequency range. A circuit (116,118,122,126) is provided for the input of the information. Independent claims are also included for the following: (1) a method for the input of information in a circuit of a document (2) a computer program product which has an integrated electronic circuit (3) a reading unit for document. |
