MULTIPLE RANGE INDICIA READER WITH SINGLE TRIGGER ACTUATION

• US 20120018517A1
• Filed: 07/21/2010
• Published: 01/26/2012
• Est. Priority Date: 07/21/2010
• Status: Active Grant

• Current Assignee: Hand Held Products Incorporated (Honeywell International Inc.)
• Original Assignee: Hand Held Products Incorporated (Honeywell International Inc.)
• Inventors: Havens, William H., Wang, Ynjiun Paul, Plesko, George Arthur, Anderson, Donald
• Granted Patent: US 8,177,134 B2
• Time in Patent Office: Days
• US Class Current: 235/462.3
• CPC Class Codes: G06K 7/10633 by oscillation
• CPC Class Codes: G06K 7/10801 Multidistance reading

Abstract

A method of operating an indicia reader for reading information bearing indicia (IBI) positioned in a field of view of the reader includes: transmitting a first laser light beam adapted for scanning an IBI on a target located a first distance from the indicia reader; transmitting a second laser light beam adapted for scanning an IBI on a target located a second distance greater than the first distance from the indicia reader; activating at least one of the first and second laser light beams; scanning at least one of the laser light beams with a flat unitary scan mirror to generate at least one of a first laser light beam pattern and a second laser light beam pattern; directing light reflected from the target from either the first or second laser light beams patterns through a common receive path; the common receive path including being reflected with the flat unitary scan mirror onto a focusing mirror; the focusing mirror directing reflected light along a directed reflected light path; the directed reflected light path including an optical filter outputting directed reflected light; converting the directed reflected light into an output signal with a photodetector; decoding IBI information derived from the output signal, wherein the operating steps are completed by devices supported in a hand held indicia reader housing and wherein an operator selectively activates the first laser light beam and/or the second laser light beam with a single action trigger.

Claims

1. A method of operating an indicia reader for reading information bearing indicia (IBI) positioned in a field of view of the reader comprising the steps of:

transmitting a first laser light beam adapted for scanning an IBI on a target located a first distance from the indicia reader;

transmitting a second laser light beam adapted for scanning an IBI on a target located a second distance greater than the first distance from the indicia reader;

activating at least one of the first and second laser light beams;

scanning at least one of the laser light beams with a flat unitary scan mirror to generate at least one of a first laser light beam pattern and a second laser light beam pattern;

directing light reflected from the target from either the first or second laser light beams patterns through a common receive path;

the common receive path including being reflected with the flat unitary scan mirror onto a focusing mirror;

the focusing mirror directing reflected light along a directed reflected light path;

the directed reflected light path including an optical filter outputting directed reflected light;

converting the directed reflected light into an output signal with a photodetector;

decoding IBI information derived from the output signal,

wherein the operating steps are completed by devices supported in a hand held indicia reader housing and wherein an operator selectively activates the first laser light beam and/or the second laser light beam with a single action trigger.

2. A method in accordance with claim 1, wherein the operator selectively activates the first or second laser light beam patterns by successively actuating a single pull trigger.

3. A method in accordance with claim 1, further comprising a display and a single pull trigger for activating the first and second laser light beam, and wherein the operator selectively activates the first or second laser light beam pattern by selecting either the first or second laser light beam pattern utilizing the display and activating the selected laser light beam pattern with a single pull trigger.

4. A method in accordance with claim 1, further comprising a single pull trigger for activating the first and second laser light beams,

wherein the operator selects activation between the first and second laser light beam patterns by twice successively actuating the trigger with a first time delay between successive trigger actuations, and

wherein the operator repeatedly activates the selected laser light beam pattern by successively actuating the trigger with a second time delay between successive trigger actuations, the second time delay being longer than the first time delay.

5. A method in accordance with claim 1, wherein selectively activating comprises at least one of the following:

a single pull trigger pull initiates alternating the first and second laser light beams starting with the first laser light beam;

a single pull trigger pull initiates alternating the first and second laser light beams starting with the second laser light beam;

a single pull trigger pull initiates near/far scanning starting with the first laser light beam and switches to the second laser light beam with a next trigger pull, then alternating for successive trigger pulls;

a single pull trigger pull initiates near/far scanning starting with the second laser light beam and switching to the first laser light beam with a next trigger pull, then alternating for successive trigger pulls.

6. A method in accordance with claim 1, wherein selectively activating comprises decoding an IBI with programming instruction information provided therein.

7. A method in accordance with claim 1, further comprising a notification device for audibly or visually notifying the operator whether the reader is in a near or far scanning mode.

8. A method in accordance with claim 1, further comprising a notification device for audibly or visually notifying the operator whether the reader has made a successful read.

9. A method in accordance with claim 1, wherein the first and second laser light beams differ in at least one of the following:

shape;

height;

width;

narrowness and intensity.

10. A method in accordance with claim 1, wherein the first and second laser light beam patterns differ in scan angle.

11. A method in accordance with claim 1, wherein selectively activating comprises at least one of the following:

a single trigger actuation activates the first laser light beam and two rapid trigger actuations activates the second laser light beam;

or a single trigger actuation activates the second laser light beam and two rapid trigger actuations activates the first laser light beam.

12. An indicia reader for reading information bearing indicia (IBI) positioned in a field of view of the reader comprising:

a first light generator for transmitting a first light beam for scanning an IBI on a target located a first distance from the indicia reader in a near scanning mode;

a second light generator for transmitting a second light beam for scanning an IBI on a target located a second distance greater than the first distance from the indicia reader in a far scanning mode;

a single pull trigger for activating the first and second light generators;

a receive system for directing light reflected from the target from either the first or second light beams through a receive path;

a photodetector for converting the directed reflected light into a representative output signal; and

,

a decoder for decoding IBI information derived from the output signal,

wherein the first light generator, second light generator, trigger, receive system, photodetector and decoder are supported in a hand held housing and wherein an operator selectively activates the first light generator and/or the second light generator with the single pull trigger.

13. An indicia reader in accordance with claim 12, wherein the operator selectively activates the first or second light generator by successively actuating the trigger.

14. An indicia reader in accordance with claim 12, further comprising a display for utilization by an operator to select either the first or second light generator and wherein the operator activates the selected light generator with the trigger.

15. An indicia reader in accordance with claim 12,

wherein activation of the first light generator is accomplished by successively actuating the trigger with a first time delay between successive trigger actuations, and

wherein activation of the second light generator is accomplished by successively actuating the trigger with a second time delay between successive trigger actuations, the second time delay being either shorter or longer than the first time delay.

16. An indicia reader in accordance with claim 12, wherein selectively activating comprises at least one of the following:

a single pull trigger pull initiates alternating the first and second light generators starting with the first light generator;

a single pull trigger pull initiates alternating the first and second light generators starting with the second light generator;

a single pull trigger pull initiates scanning starting with the first light generator and switches to the second light generator with a next trigger pull, then alternating for successive trigger pulls;

a single pull trigger pull initiates scanning starting with the second light generator and switching to the first light generator with a next trigger pull, then alternating for successive trigger pulls.

17. An indicia reader in accordance with claim 12, wherein selectively activating comprises decoding an IBI with programming instruction information provided therein.

18. An indicia reader in accordance with claim 12, further comprising a notification device for audibly or visually notifying the operator whether the reader is in a near or far scanning mode.

19. An indicia reader in accordance with claim 12, wherein the first and second light beams differ in at least one of the following:

shape;

height;

width;

narrowness;

intensity and scan angle of a pattern the light beam creates.