File folders for use in an electronic file locating and tracking system

• US 5,739,765 A
• Filed: 07/18/1996
• Issued: 04/14/1998
• Est. Priority Date: 01/27/1995
• Status: Expired due to Fees

• Current Assignee: Steelcase Development Inc.
• Original Assignee: Steelcase Incorporated
• Inventors: Stanfield, Joel D., Branc, Joseph R., Miller, William L., Feldpausch, Thomas G.
• Primary Examiner(s): Zimmerman, Brian
• Application Number:
  US08/683,082
• Time in Patent Office: 635 Days
• Field of Search: 340/825.49, 340/572, 340/573, 206/425
• US Class Current: 340/8.1
• CPC Class Codes: G06F 16/10 File systems; File servers
• CPC Class Codes: G06F 16/93 Document management systems

Abstract

A file tracking system including a processor, which maintains and interfaces with a database, a plurality of file folder retainers, and a plurality of file folders. The file tracking system actively maintains and updates the database, which includes file information, file location, and unique file address for the plurality of files, by providing interactive communication between the processor, the folder retainers, and the file folders. Each file folder may include an indicator light, such as an LED, which a user may cause to blink when trying to locating the file folder at a location accessed from the database.

Claims

1. A file folder for use in a file tracking system having a processor adapted to provide control signals to a file folder when disposed in a folder retainer, the file folder comprising:

at least one surface;

an addressable device carried by the file folder and having an address;

a first conductor on said surface electrically coupled to said addressable device for providing control signals to said addressable device when said file folder is placed in a folder retainer, said first conductor adapted to communicatively couple to the processor of the file tracking system, the control signals being provided by the processor; and

a second conductor on said surface for providing a return path from said addressable device; and

said first and second conductors are disposed in a pattern that allows for conductive contact between adjacent file folders when said adjacent file folders are in any one of a plurality of different positions.

2. The file folder of claim 1, wherein

said first conductor includes

a first linear strip extending from a first edge of said surface to a central point on an adjacent second edge of said surface, and

a second linear strip extending from said central point on said second edge of said surface to a third edge of said surface, which is opposite said first edge and adjacent said second edge;

and

said second conductor includes

a first linear strip extending in parallel to said first linear strip of said first conductor from said first edge of said surface to said second edge of said surface, and

a second linear strip extending in parallel to said second linear strip of said first conductor from said second edge of said surface to said third edge of said surface, said first and second linear strips of said second conductor are positioned an equal distance on opposite sides of said first conductor.

3. The file folder of claim 1, wherein said first conductor is a linear strip extending from one edge of said surface to an opposite edge of said surface, said second conductor is formed of two linear strips, each extending in parallel to said first conductor from said one edge of said surface to said other edge of said surface, and wherein the two linear strips of said second conductor are positioned an equal distance on opposite sides of said first conductor.

4. The file folder of claim 1, wherein said plurality of different positions are determined relative to an adjacent file folder.

5. The file folder of claim 1, wherein said plurality of different positions are determined relative to a folder retainer.

6. The file folder of claim 1, wherein the folder retainer is a drawer of a filing cabinet, and one of said plurality of different positions of said adjacent file folders is hanging in the drawer.

7. The file folder of claim 1, wherein one of said plurality of different positions of said adjacent file folders is a stacked position with each file folder stacked vertically upon another file folder whereby said pattern of said first and second conductors allows for conductive contact between such vertically stacked adjacent file folders.

8. A file folder for use in an electronic file tracking system having electrical contacts, comprising:

a folder adapted to contain media therein;

an addressable device located on said folder, said addressable device being adapted to communicate electrically with the electronic file tracking system; and

a conductor located on said folder and configured so as to electrically connect said addressable device to the electrical contacts of the electronic file tracking system when said folder is positioned in any one of several different positions.

9. The file folder of claim 8, wherein said conductor is configured to cl electrically connect said addressable device to the electrical contacts of the electronic file tracking system when said folder is positioned in any one of several different orientations with respect to the electrical contacts.

10. The file folder of claim 8, wherein said conductor is configured to electrically connect said addressable device to the electrical contacts of the electronic file tracking system when said folder is positioned in any one of several different positions with respect to an adjacent file folder.

11. The file folder of claim 10, wherein said conductor is configured to electrically connect said addressable device to the electrical contacts of the electronic file tracking system when said folder is positioned in any one of several different rotated positions with respect to an adjacent file folder.

12. The file folder of claim 8, wherein said conductor is configured to electrically connect said addressable device to the electrical contacts of the electronic file tracking system at a plurality of locations on said folder.

13. The file folder of claim 12, wherein at least one of said plurality of locations is a side surface of said folder.

14. The file folder of claim 12, wherein at least one of said plurality of locations is an edge surface of said folder.

15. The file folder of claim 12, wherein one of said plurality of locations is a side surface of said folder and another one of said plurality of locations is an edge surface of said folder.

16. A file folder for use in an electronic file tracking system having a source of power and means for generating control signals, comprising:

a folder adapted to contain media therein and having at least one surface;

an addressable device located on the folder, said addressable device having an input terminal for receiving both power and control signals from the electronic file tracking system;

a first conductor on said surface for removably coupling said input terminal of said addressable device to both the source of power and the means for generating control signals located apart from the folder in the electronic file tracking system when said file folder is placed in a folder retainer; and

a second conductor on said surface for providing a return path from said addressable device,

said first and second conductors are disposed in a pattern that allows for conductive contact between adjacent file folders.

17. The file folder of claim 16, wherein said file folder further includes an indicator light located on said folder, and wherein said addressable device is adapted to transfer power to said indicator light from the source of power in the electronic file tracking system.

18. A file folder for use in a file tracking system having a processor adapted to provide control signals to a file folder when disposed in a folder retainer, the file folder comprising:

a folded substrate for holding media, said folded substrate having at least one generally planar exterior surface;

an addressable device carried by the file folder and having an address;

a first conductor on said exterior surface electrically coupled to said addressable device for providing control signals to said addressable device when said file folder is placed in a folder retainer, said first conductor adapted to communicatively couple to the processor of the file tracking system, the control signals being provided by the processor; and

a second conductor on said exterior surface for providing a return path from said addressable device.

19. The file folder of claim 18, wherein the folder retainer includes a first conductive rail for providing control signals from the processor and a second conductive rail for providing a ground, and wherein said addressable device is connected to receive control signals from the processor and a ground from the second conductive rail when (1) said first and second conductors directly contact the first and second conductive rails, respectively, or (2) said first and second conductors of the file folder indirectly contact said first and second conductive rails through first and second conductors of another file folder placed in the folder retainer.

20. The file folder of claim 18, further including an indicator connected to said addressable device, wherein said addressable device is an addressable switch and said indicator is activated whenever the processor transmits a control signal to said addressable switch that includes the address corresponding to said addressable switch.

21. The file folder of claim 20, wherein said indicator is an indicator light.

22. The file folder of claim 20, wherein said indicator is an audible alarm.

23. The file folder of claim 18, wherein said first and second conductors include strips of conductive tape provided on said exterior surface of the file folder.

24. The file folder of claim 18, wherein said first and second conductors include strips of conductive fabric provided on said exterior surface of the file folder.

25. The file folder of claim 18, wherein said first and second conductors include strips of conductive coatings provided on said exterior surface of the file folder.

26. The file folder of claim 25, wherein said conductive coating is conductive ink.

27. The file folder of claim 25, wherein said conductive coating is formed of a conductive polymer.

28. The file folder of claim 18, wherein said addressable device includes an addressable switch that includes:

a ROM having a unique address stored therein;

address comparing means for comparing an address included in a control signal received from the processor with the unique address stored in said ROM; and

state changing means for changing the state of said addressable switch when said address comparing means determines that the address included in the received control signal is the same as the unique address stored in said ROM.

29. The file folder of claim 28, wherein said addressable switch further includes a load transistor having a gate, a source, and a drain, said gate connected to said state changing means, wherein said state changing means changes the state of said addressable switch by turning on and off said load transistor.

30. The file folder of claim 29, further including an indicator light having a first terminal connected to said first conductor, and a second terminal connected to said source of said load transistor, wherein said drain of said load transistor is connected to said second conductor, and said indicator light is turned on when said load transistor is turned on by said state changing means.

31. The file folder of claim 18, wherein said first conductor additionally provides power to the addressable switch positioned on a file folder.

32. A file folder for use in an electronic file tracking system wherein file folders are stored in folder retainers communicatively coupled to the electronic file tracking system, comprising:

a folder having a contact surface;

an addressable device located on said folder;

a first conductor on said contact surface for providing control signals sent by the electronic file tracking system to said addressable device when said file folder is placed in a folder retainer of the electronic file tracking system; and

a second conductor on said contact surface for providing a return path from said addressable device,

wherein said first and second conductors are disposed on said contact surface in a pattern that allows contact with a plurality of differently configured electrical contacts provided in the folder retainers.

33. The file folder of claim 32, wherein said contact surface is located on an edge surface of said folder.

34. The file folder of claim 32, wherein said contact surface is located on the side surface of said folder.

35. The file folder of claim 32, wherein said contact surface is located on both a side surface and an edge surface of said folder.

36. A file folder for use in a file tracking system having a processor adapted to provide control signals to a file folder when disposed in a folder retainer, the file folder comprising:

at least one surface;

an addressable device carried by the file folder and having an address;

a first conductor on said surface electrically coupled to said addressable device for providing control signals to said addressable device when said file folder is placed in a folder retainer, said first conductor adapted to communicatively couple to the processor of the file tracking system, the control signals being provided by the processor; and

a second conductor on said surface for providing a return path from said addressable device; and

said first and second conductors are disposed in a pattern that allows for conductive contact between adjacent file folders.

37. The file folder of claim 36, wherein said pattern allows for conductive contact between adjacent file folders positioned in a vertical stack.

38. The file folder of claim 36, wherein

said first conductor includes

a first linear strip extending from a first edge of said surface to a central point on an adjacent second edge of said surface, and

a second linear strip extending from said central point on said second edge of said surface to a third edge of said surface, which is opposite said first edge and adjacent said second edge;

and

said second conductor includes

a first linear strip extending in parallel to said first linear strip of said first conductor from said first edge of said surface to said second edge of said surface, and

a second linear strip extending in parallel to said second linear strip of said first conductor from said second edge of said surface to said third edge of said surface, said first and second linear strips of said second conductor are positioned an equal distance on opposite sides of said first conductor.

39. The file folder of claim 36, wherein said pattern allows for conductive contact between adjacent file folders hanging in a hanging file drawer.

40. The file folder of claim 39, wherein said pattern allows for conductive contact between adjacent file folders regardless of an orientation of the file folder within the hanging file drawer.

41. The file folder of claim 39 further including electrical contacts for coupling said addressable device to electrical conductors connected to the processor and provided on a support rail of a file drawer from which file folders may be suspended.