Personal identification system based on the reading of multiple one-dimensional barcodes scanned from PDA/cell phone screen

• US 20040035925A1
• Filed: 08/22/2002
• Published: 02/26/2004
• Est. Priority Date: 08/19/2002
• Status: Abandoned Application

• Current Assignee: Chunghwa Telecom Co., Ltd.
• Original Assignee: Chunghwa Telecom Co., Ltd.
• Inventors: Jain, Da-Wei, Lan, Yuang-Tzong, Wu, Quen-Zong
• Application Number:
  US10/225,183
• Publication Number:
  US 20040035925A1
• Time in Patent Office: Days
• US Class Current: 235/380
• CPC Class Codes: G06K 7/10 by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
• 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

Abstract

A personal identification system based on the reading of multiple one-dimensional barcodes scanned from PDA/cell phone screen, which is a personal identification system applicable for reading multiple one-dimensional barcode on PDA/cell phone screen, comprises a multiple one-dimensional barcode generating system and a reading system of multiple one-dimensional barcode on PDA/cell phone screen, wherein said multiple one-dimensional barcode generating system is consisted of a data input unit and a barcode generating unit. The reading system of multiple one-dimensional barcode on PDA/cell phone screen is consisted of a PDA/cell phone reaction unit, a CCD camera, a frame grabber, an image processing unit, a barcode recognition unit and a data recording unit. The personal identification system based on the reading of multiple one-dimensional barcodes scanned from PDA/cell phone screen is useful as the mechanism for personal identification, certificates of purchase or checkoff.

Claims

1. A personal identification system based on the reading of multiple one-dimensional barcodes scanned from PDA/cell phone screen, comprises a multiple one-dimensional barcode generating system and a reading system of multiple one-dimensional barcode on PDA/cell phone screen, wherein said multiple one-dimensional barcode generating system is consisted of a data input unit and a barcode generating unit, wherein said data input unit can be used to input the original data of said barcode and then said original data are transmitted to said barcode generating unit where a corresponding barcode is created;

the reading system of multiple one-dimensional barcode on PDA/cell phone screen is based centrally on image processing/identification technology and is consisted of a PDA/cell phone reaction unit, a CCD camera, a frame grabber, an image processing unit, a barcode recognition unit and a data recording unit, wherein said PDA/cell phone reaction unit is responsible for detecting the PDA/cell phone entered into the detection area, and sending the detected signal to the frame grabber in order to trigger the CCD camera for taking the image on the PDA/cell phone screen;

said multiple one-dimensional barcode image taken by said CCD camera from said PDA/cell phone screen is processed by said image processing unit into a binary image which is recognized completely by said barcode recognition unit decodes and the result recognized is backup in said data recording unit.

2. A personal identification system based on the reading of multiple one-dimensional barcodes scanned from PDA/cell phone screen as recited in claim 1, characterized in that said barcode generating unit in said multiple one-dimensional barcode generating system can generate a one-dimensional barcode or a multiple one-dimensional barcode as required.

3. A personal identification system based on the reading of multiple one-dimensional barcodes scanned from PDA/cell phone screen as recited in claim 2, characterized in that said multiple one-dimensional barcode generated by said barcode generating unit in said multiple one-dimensional barcode generating system incorporates a checksum.

4. A personal identification system based on the reading of multiple one-dimensional barcodes scanned from PDA/cell phone screen as recited in claim 1, characterized in that said reading system of multiple one-dimensional barcodes scanned from PDA/cell phone screen can recognize the barcode scanned from a PDA/cell phone screen or from other liquid crystal display.

5. A personal identification system based on the reading of multiple one-dimensional barcodes scanned from PDA/cell phone screen as recited in claim 1, characterized in that said PDA/cell phone reaction unit of said reading system of multiple one-dimensional barcodes scanned from PDA/cell phone screen senses by means of a sensor hardware or a image detecting manner as a software.

6. A personal identification system based on the reading of multiple one-dimensional barcodes scanned from PDA/cell phone screen as recited in claim 1, characterized in that said image processing unit of said reading system of multiple one-dimensional barcodes scanned from PDA/cell phone screen transforms the barcode image into a binary image using a moving average method with a dynamic threshold value and removes impurity to remain the main image of the barcode.

7. A personal identification system based on the reading of multiple one-dimensional barcodes scanned from PDA/cell phone screen as recited in claim 1, characterized in that said reading system of multiple one-dimensional barcodes scanned from PDA/cell phone screen locates the position of said barcode by means of Quiet Zone on both sides of said barcode as well as the characteristic property of the pronounced gradient change of said barcode image.

8. A personal identification system based on the reading of multiple one-dimensional barcodes scanned from PDA/cell phone screen as recited in claim 1, characterized in that said barcode recognition unit of said reading system of multiple one-dimensional barcodes scanned from PDA/cell phone screen checks the decoded result with the checksum of said barcode.

9. A personal identification system based on the reading of multiple one-dimensional barcodes scanned from PDA/cell phone screen as recited in claim 8, characterized in that said image processing unit of said reading system of multiple one-dimensional barcodes scanned from PDA/cell phone screen will discard the image if the recognized result is not correct, and will feedback a signal for taking image again.

10. A personal identification system based on the reading of multiple one-dimensional barcodes scanned from PDA/cell phone screen as recited in claim 1, characterized in that said data recording unit of said reading system of multiple one-dimensional barcodes scanned from PDA/cell phone screen will record the serial number, the embedded barcode information, the recording time and the backup image filename.

11. A personal identification system based on the reading of multiple one-dimensional barcodes scanned from PDA/cell phone screen as recited in claim 1, characterized in that said data recording unit of said reading system of multiple one-dimensional barcodes scanned from PDA/cell phone screen can provide manual barcode data input.