Graphics code system

• US 6,764,011 B2
• Filed: 02/11/2003
• Issued: 07/20/2004
• Est. Priority Date: 02/13/2002
• Status: Expired due to Fees

• Current Assignee: NEC Infrontia Corporation (NEC Corporation)
• Original Assignee: NEC Infrontia Corporation (NEC Corporation)
• Inventors: Entani, Naruto
• Primary Examiner(s): Lee, Michael G.
• Assistant Examiner(s): PAIK, STEVEN SANGYUL
• Application Number:
  US10/361,490
• Publication Number:
  US 20030152229A1
• Time in Patent Office: 525 Days
• Field of Search: 235/462.25, 235/462.01, 235/462.08, 235/462.09, 235/462.12, 235/462.18, 235/462.32, 235/494
• US Class Current: 235/462.25
• CPC Class Codes: G06K 7/1095 the scanner comprising adaptations for scanning a record carrier that is displayed on a display-screen or the like
• CPC Class Codes: G06K 7/14 using light without selection of wavelength, e.g. sensing reflected white light G06K7/10831 - G06K7/1097 take precedence

Abstract

A bar code system is composed of a bar code display device 100 and a bar code reader 110. The bar code display device 100 has a operation unit 101 which divides transfer information to be transmitted into a plurality of pages of divisional information, converts them into bar codes, and successively displays the bar codes on a display unit 104. The bar code reader 110 has a operation unit 111 which converts bar codes successively read by a scanner 116 into divisional information, connects the divisional information, and restores the divisional information into transfer information.

Claims

1. A graphics code system comprising a graphics code display device for displaying a graphics code to be transferred, and a graphics code reader for reading the graphics code displayed on said graphics code display device,

wherein said graphics code display device comprises:

a display unit for displaying the graphics code; and

code division control means for dividing transfer information to be transmitted into a plurality of pages of divisional information, converting said plurality of pages of divisional information into graphics codes, and

successively displaying the converted graphics codes on said display unit, and wherein said graphics code reader comprises;

reading means for successively reading the graphics codes displayed on said display unit; and

code restoration control means for converting each graphics code which has been read by said reading means into divisional information, connecting a plurality of pages of divisional information, and restoring them to the transfer information.

2. The graphics code system as set forth in claim 1, wherein said code division control means of said graphics code display device is configured to add control information composed of a number which represents the order of the plurality of pages of divisional information and the total number of pages of divisional information to each of the plurality of pages of divisional information, and

wherein said code restoration control means of said graphics code reader is configured to judge whether or not all of the plurality of pages of divisional information have been read corresponding to the control information added to each of the plurality of pages of divisional information.

3. The graphics code system as set forth in claim 1, wherein said code division control means of said graphics code display device is configured to add an error correction code to the transfer information which has not been yet divided and divide the resultant transfer information, and

wherein said code restoration control means of said graphics code reader is configured to perform processes for error correcting and detecting the restored transfer information corresponding to the error correction code.

4. The graphics code system as set forth in claim 1, wherein a graphics code reading time period of said graphics code reader is ⅓

or smaller than a graphics code display changing time period of said graphics code display device.

5. The graphics code system as set forth in claim 1, wherein the graphics code is a bar code.

6. The graphics code system as set forth in claim 1, wherein the graphics code is a two-dimensional code.