Method for selecting and adjusting scanner illuminant

• US 20040130756A1
• Filed: 01/06/2003
• Published: 07/08/2004
• Est. Priority Date: 01/06/2003
• Status: Active Grant

• Current Assignee: Intellectual Ventures I LLC (Intellectual Ventures LLC)
• Original Assignee: Transpacific Systems LLC (Intellectual Ventures LLC)
• Inventors: Chen, Chun-Jen
• Granted Patent: US 7,679,791 B2
• Time in Patent Office: Days
• US Class Current: 358/475
• CPC Class Codes: H04N 1/00885 Power supply means, e.g. arrangements for the control of power supply to the apparatus or components thereof
• CPC Class Codes: H04N 1/00901 Using different supplies or connection to an external supply H04N1/00893, H04N1/00896 take precedence
• CPC Class Codes: H04N 1/00904 Arrangements for supplying power to different circuits or for supplying power at different levels H04N1/00896 takes precedence

Abstract

A method applied in a scanner for selecting and adjusting scanner illuminants including procedures herein below is provided. Start the scanner; determine what type of power supply the scanner is connected to; select suitable illuminant which fits the adopted power supply; and start to scan. Of which, the power supply adopted is either self power or bus power, while the suitable illuminant is either a high power illuminant or a low power illuminant. Another method including procedures herein below is also provided. Start the scanner; determine what type of power supply is adopted in the scanner; adjust the drive setting for the illuminant which fits the adopted power supply; drive the illuminant; and start to scan. Of which, the power supply adopted is either self power or bus power, while the drive setting for the illuminant is either a high power setting or a low power setting.

Claims

1. A method applied in a scanner for selecting and adjusting scanner illuminants, comprising the following procedures:

start the scanner;

determine what type of power supply the scanner is connected to;

select suitable illuminant which fits the adopted power supply; and

start scanning.

2. The method according to claim 1, wherein the adopted power supply is either self power or bus power.

3. The method according to claim 2, wherein the suitable illuminant is either a high power illuminant or a low power illuminant.

4. The method according to claim 3, wherein the self power corresponds to the high power illuminant whereas the bus power corresponds to the low power illuminant with regards to the procedure of determining and the procedure of selecting.

5. The method according to claim 4, wherein the high power illuminant is a high power cold cathode fluorescent lamp (CCFL) whereas the low power illuminant is a low power CCFL.

6. The method according to claim 4, wherein the high power illuminant is a high power light emitting diode (LED) whereas the low power illuminant is a low power LED.

7. The method according to claim 4, wherein the high power illuminant is a CCFL whereas the low power illuminant is a LED.

8. A method applied in a scanner for selecting and adjusting scanner illuminants, comprising the following procedures:

start the scanner;

determine what type of power supply the scanner is connected to;

adjust suitable illuminant drive setting which fits the adopted power supply;

drive an illuminant; and

start scanning.

9. The method according to claim 8, wherein the adopted power supply is either self power or bus power.

10. The method according to claim 9, wherein the drive setting for the illuminant is either a high voltage setting or a low voltage setting.

11. The method according to claim 10, wherein the self power corresponds to the high voltage setting whereas the bus power corresponds to the low voltage setting with regards to the procedure of determining and the procedure of selecting.

12. The method according to claim 11, wherein the illuminant is a CCFL.

13. The method according to claim 11, wherein the illuminant is a LED.