Simplified anti-collision method for detecting electronic identification devices

• US 20060004849A1
• Filed: 06/09/2005
• Published: 01/05/2006
• Est. Priority Date: 06/14/2004
• Status: Abandoned Application

• Current Assignee: EM Microelectronic - Marin SA (The Swatch Group AG)
• Original Assignee: EM Microelectronic - Marin SA (The Swatch Group AG)
• Inventors: Kanan, Riad
• Application Number:
  US11/148,412
• Publication Number:
  US 20060004849A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06K 17/0029 the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: G06K 7/10019 resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. collision between the communication channels used by wireless communication devices, where the solution is not particularly adapted for RFIDs or the like, H04W74/08

Abstract

The invention concerns a simplified anti-collision method applied to a determined assortment of objects of different natures or types, regrouped in the form of a set, each of said objects forming the set being fitted with an electronic identification device including programmable storage means into which there has been programmed an object identifier (DEVICE_ID), which identifies the nature or the type of the object to which the electronic identification device is applied and which is identical to the object identifier of the objects of the same nature or same type placed in other sets, the method including, after the objects have been regrouped to form the set, the following step: selective addressing of each of the objects forming the set by means of object identifiers (DEVICE_ID) of each of the objects forming the determined assortment.

Claims

1. A simplified anti-collision method, wherein it is applied to a determined assortment of objects of different natures or types, regrouped in the form of a set, each of said objects forming the set being provided with an electronic identification device comprising programmable storage means into which there has been programmed a first identifier, or object identifier, which identifies the nature or type of the object to which the electronic identification is applied, the method including, after regrouping said objects to form said set, the following additional steps:

selectively addressing each of said objects forming said set by means of the object identifiers of each of said objects forming the determined assortment.

2. The method according to claim 1, wherein the following additional step is provided:

checking the completeness of the set consisting in checking the reception of a response from each object addressed.

3. The method according to claim 2, wherein the following step is also provided:

programming a management and/or follow up value of said set into said storage means of each electronic identification device corresponding to the object addressed.

4. The method according to claim 3, wherein the programmed management and/or follow up value is a second identifier, or set identifier, which identifies said set from among other sets.

5. The method according to claim 4, wherein said objects are communicating electronic objects communicating with each other via a wireless communication interface and wherein said set identifier is to be exploited by the communicating electronic devices, during operation, for communicating with each other via said wireless communication interface.

6. The method according to claim 4, wherein said objects are communicating electronic objects communicating with each other via a wireless communication interface and wherein said step of programming the set identifier ensures a “

match”

of the various communicating electronic devices for their communication via the wireless communication interface.

7. The method according to claim 6, wherein, during said step of programming the set identifier, said electronic identification devices are silent and wherein each electronic identification device is selectively activated by transmission of an activation command including the object identifier of the object concerned.

8. The method according to claim 5, wherein said communicating electronic devices are wireless computer peripheral units selected from the group including a computer keyboard, a computer mouse, a “

trackball”

, a “

track-pad”

, a handle or game controller, a “

joystick”

, a video camera, a portable telephone, a personal digital assistant, a radio-frequency receiver and combinations of these communicating electronic devices.

9. The method according to claim 1, wherein each object identifier is formed of a binary word with N bits, preferably greater than or equal to 3, allowing identification of 2^N objects of distinct types and natures.

10. A method of managing and/or following up the manufacturing and packaging process of objects of different types or natures, said objects being intended to be packaged and distributed in the form of a set regrouping a determined assortment of said objects, each of said objects being fitted with an electronic identification device including programmable storage means, wherein the method includes the following steps:

programming, in the storage means of each electronic identification device, a first identifier, or object identifier, which identifies the nature of type of the object to which the electronic identification device is applied and which is identical to the objects of the same nature or same type placed in other sets.

11. The method according to claim 10, wherein after programming said object identifiers, the following steps are provided:

regrouping and packaging said objects to form said set, and

selectively addressing each of said objects forming said set by means of the object identifiers of each of said objects forming the determined assortment.