Cordless indicia reader with a multifunction coil for wireless charging and EAS deactivation

• US 9,478,113 B2
• Filed: 06/24/2015
• Issued: 10/25/2016
• Est. Priority Date: 06/27/2014
• Status: Active Grant

• Current Assignee: Hand Held Products Incorporated (Honeywell International Inc.)
• Original Assignee: Hand Held Products Incorporated (Honeywell International Inc.)
• Inventors: Xie, Zhengyang, Gao, Jianfeng, Liu, Zhongqi, Li, Jian, Huang, Hongfeng, Wang, Lin, Pi, Yunsheng
• Primary Examiner(s): Tweel, Jr., John A
• Application Number:
  US14/748,446
• Publication Number:
  US 20150379838A1
• Time in Patent Office: 489 Days
• Field of Search: 340/572.3, 340/572.1, 340/551, 235/462.13, 235/462.45
• US Class Current: 1/1
• CPC Class Codes: G06K 7/10 by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
• CPC Class Codes: G06K 7/10158 methods and means used by the interrogation device for reliably powering the wireless record carriers using an electromagnetic interrogation field
• CPC Class Codes: G06K 7/10881 constructional details of hand-held scanners
• CPC Class Codes: G08B 13/2411 Tag deactivation
• CPC Class Codes: G08B 13/242 Tag deactivation
• CPC Class Codes: G08B 13/2431 Tag circuit details
• CPC Class Codes: G08B 13/246 Check out systems combined with EAS, e.g. price information stored on EAS tag anti-theft systems in point of sale systems G07G3/003
• CPC Class Codes: H01F 27/2871 Pancake coils
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H02J 50/005 Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 7/0063 with circuits adapted for supplying loads from the battery

Abstract

A cordless indicia reader including a multifunction coil that can be configured to either transmit or receive electromagnetic energy is disclosed. In this way, the multifunction coil facilitates both the wireless charging of a battery and the wireless deactivation of electronic article surveillance (EAS) tags. The multifunction coil, and a plurality of modules to perform these functions, are integrated within the cordless indicia reader'"'"'s hand-supportable housing.

Claims

1. A cordless indicia reader, comprising:

a plurality of modules configured for (i) acquiring and decoding indicia, (ii) receiving energy wirelessly to charge an energy storage component, and (iii) transmitting energy wirelessly to deactivate electronic article surveillance (EAS) tags; and

a hand-supportable housing substantially enclosing the plurality of modules;

wherein the plurality of modules comprises a coil module, the coil module including one multifunction coil for both (i) wirelessly receiving energy to facilitate the charging of the energy storage component and (ii) wirelessly transmitting energy to facilitate the deactivation of EAS tags.

2. The cordless indicia reader according to claim 1, wherein the plurality of modules comprise:

a control module for generating signals to configure the indicia reader'"'"'s modes of operation, the modes of operation comprising (i) an indicia-reading mode, (ii) a wireless-charging mode, and (iii) an EAS-deactivation mode;

a battery module, comprising an energy storage component, for storing energy and supplying energy to enable the indicia reader'"'"'s modes of operation;

a switching module, comprising one or more switches, controlled by the control module, configured to route energy and electronic signals between modules to facilitate the cordless indicia reader'"'"'s modes of operation;

an indicia-reading module enabled to acquire and decode indicia when the indicia reader is configured in the indicia-reading mode;

a charging module enabled to generate a charging signal when the indicia reader is configured in the wireless-charging mode; and

an EAS-deactivation module enabled to generate an EAS-deactivation signal when the indicia reader is configured in the EAS-deactivation mode.

3. The cordless indicia reader according to claim 2, wherein the control module facilitates the indicia-reading mode by signaling the switching module to electrically interconnect the battery module and the indicia-reading module.

4. The cordless indicia reader according to claim 3, wherein the control module is triggered to facilitate the indicia-reading mode when an operator presses a scan button on the cordless indicia reader'"'"'s hand supportable housing.

5. The cordless indicia reader according to claim 2, wherein the control module facilitates the wireless-charging mode by signaling the switching module to electrically interconnect the battery module, wireless-charging module, and the coil module.

6. The cordless indicia reader configured for wireless-charging mode according to claim 5, wherein the coil module'"'"'s multifunction coil receives an electromagnetic charging signal wirelessly from a host charging coil via magnetic induction.

7. The cordless indicia reader configured for wireless-charging mode according to claim 5, wherein the coil module'"'"'s multifunction coil receives an electromagnetic charging signal having power of 5 watts or less.

8. The cordless indicia reader according to claim 2, wherein the control module facilitates the EAS-deactivation mode by signaling the switching module to electrically interconnect the battery module, EAS-deactivation module, and coil module.

9. The cordless indicia reader according to claim 8, wherein the EAS-deactivation module is triggered to send the EAS-deactivation signal upon sensing an EAS tag.

10. The cordless indicia reader according to claim 8, wherein the EAS deactivation signal comprises a pulse of radio frequency (RF) energy with a frequency of 7.5 megahertz to 8.8 megahertz, the frequency matching a resonant frequency of the EAS tag.

11. The cordless indicia reader according to claim 2, wherein the control module is triggered to enable the indicia reader'"'"'s EAS-deactivation mode after an indicium is acquired and decoded.

12. The cordless indicia reader according to claim 2, wherein the control module is triggered to enable the indicia reader'"'"'s wireless-charging mode after an EAS-deactivation signal is transmitted.

13. A cordless indicia reader, comprising:

a plurality of modules enclosed by a hand-supportable housing, wherein the plurality of modules comprise;

a control module for generating signals to configure a switching module, the switching module having a one or more electrical switches for electrically configuring the plurality of modules to perform a plurality of functions;

an indicia-reading module for acquiring and decoding indicia information;

a charging module for generating a charging signal for a battery module, the battery module for storing energy and supplying energy to enable the plurality of modules;

an electronic article surveillance (EAS) deactivation module for generating an EAS-deactivation signal to deactivate an EAS tag; and

a coil module, the coil module including a multifunction coil for (i) wirelessly receiving energy for the charging module and (ii) wirelessly transmitting energy from the EAS-deactivation module to facilitate the deactivation of the EAS tag.

14. The cordless indicia reader according to claim 13, wherein the plurality of functions comprises (i) indicia reading, (ii) wireless charging, and (iii) EAS-tag deactivation.

15. The cordless indicia reader according to claim 14, wherein the control module is configured to generate a signal to adjust the switching module to electrically join the plurality of modules in order to enable indicia reading when an operator presses a scan button on the hand-supportable housing.

16. The cordless indicia reader according to claim 14, wherein the control module is configured to generate a signal to adjust the switching module to electrically join the plurality of modules in order to enable the wireless charging of the battery module when cordless indicia reader is not engaged in indicia reading or EAS deactivation functions.

17. The cordless indicia reader according to claim 14, wherein the control module is configured to generate a signal to adjust the switching module to electrically join the plurality of modules in order to enable EAS-tag deactivation after performing the indicia reading function.

18. The cordless indicia reader according to claim 14, wherein the EAS deactivation module has circuitry to generate a tag signal when an active EAS tag is in proximity to the multifunction coil, the tag signal triggering the EAS-deactivation module to generate the EAS-deactivation signal.

19. The cordless indicia reader according to claim 13, wherein the multifunction coil is a planar spiral coil.

20. The cordless indicia reader according to claim 19, wherein the planar spiral coil has at least 15 turns.