Programmable universal locating system

• US 6,535,120 B1
• Filed: 09/25/2001
• Issued: 03/18/2003
• Est. Priority Date: 09/25/2001
• Status: Active Grant

• Current Assignee: RPX Corporation
• Original Assignee: Dds John Sebanc
• Inventors: Sebanc, John, Chamberlin, Robert John
• Primary Examiner(s): POPE, DARYL C
• Application Number:
  US09/963,843
• Publication Number:
  US 20030058098A1
• Time in Patent Office: 539 Days
• Field of Search: 340/505, 340/506, 340/573.1, 340/573.4, 340/572.8, 340/3.1, 340/825.36, 340/825.49, 340/5.8, 340/5.81
• US Class Current: 340/505
• CPC Class Codes: G08B 21/0222 Message structure or message content, e.g. message protocol
• CPC Class Codes: G08B 21/0227 System arrangements with a plurality of child units
• CPC Class Codes: G08B 21/023 Power management, e.g. system sleep and wake up provisions
• CPC Class Codes: G08B 21/0247 System arrangements wherein the alarm criteria uses signal strength
• CPC Class Codes: G08B 21/0294 Display details on parent unit
• CPC Class Codes: G08B 21/24 Reminder alarms, e.g. anti-loss alarms

Abstract

A system and methodology for a programmable and reprogrammable locating system comprising of at least one central control unit and at least one response unit. The central control unit, for activating the response unit and for programming/reprogramming the response unit, utilizes a serial bits stream signal to communicate the programming data and activation data to the response unit. Both the central control unit and the response unit utilize the generation of a square wave for discriminating between a signal as coming from a central control unit from those signals emanating from non-central control unit sources. This signal discrimination capability and signal data carrying capability allow multiple response units to be programmed/reprogrammed to one or more central control units. This programmable/reprogrammable capability gives universal adaptability in that the response unit circuitry/central control circuitry can be incorporated directly into or associated with other goods that previously lacked locating abilities. The invention'"'"'s ability to be incorporated into a multitude of different goods would allow the wide spread dissemination and application of locating technology.

Claims

1. A method for programming communications for a locating system having at least one central control unit with transceiving capability, a mode selector, and at least one actuator, and at least one response unit with transceiving capability and memory, comprising:

a. setting at least one central control unit to a programming mode;

b. activating at least one actuator;

c. transmitting from at least one central control unit a signal containing identification data that corresponds specifically to the particular activated actuator;

d. receiving said transmitted signal by at least one response unit; and

e. retaining in the storage memory of at least one response unit, said identification data contained in the signal.

2. The method of claim 1 wherein the transmitted signal has a synchronization field that contains data;

said method wherein a response unit is responsive to the reception of said data, aligning its circuitry for reception of the information contained in the signal.

3. The method of claim 1 wherein the transmitted signal contains a mode field which can hold data that establishes with said response unit a mode of operation corresponding to that of said central control unit.

4. A method of programming communications for a locating system as claimed in claim 3 wherein the mode established by the response unit will match the mode of the central control unit.

5. A method of programming communications for a locating system as claimed in claim 1 wherein an additional step is generating a square wave that is used to discriminate a signal as coming from the central control unit.

6. A method of programming communications for a locating system as claimed in claim 5 wherein both the central control unit and the response unit generate a square wave.

7. The method of claim 1 wherein the retaining in the storage memory said identification data comprises:

said response unit displacing previously stored data with said identification data.

8. The method of claim 1 further comprising placing said central control unit in close proximity to said response unit.

37. A method of programming communications for a locating system as claimed in claim 6 wherein the square waves of the central control unit and the response unit match.

9. A method of activating a response unit for a locating system having at least one central control unit with transceiving capability, a mode selector, and at least one actuator, and at least one response unit with transceiving capability and memory, both units are capable of operating in at least two modes, actuating and programming, comprising:

a. setting at least one central control unit to an actuator mode;

b. activating at least one actuator;

c. transmitting from at least one central control unit a signal containing identification data that corresponds specifically to the particular activated actuator;

d. receiving said transmitted signal by at least one response unit;

e. comparing by the response unit said identification data contained in said transmitted signal with data previously stored in the memory of the response unit; and

f. responding to a match between said transmitted identification data and said previously stored data by providing at least one signal that is used to locate the response unit.

10. The method of claim 9 wherein said step of providing a signal comprises:

said central control unit responding to the reception of a signal from said response unit by producing a signal that indicates the approximate distance between said central control unit and said response unit, based on the strength of said received signal.

11. The method of claim 10 where the signal produced by said central control unit is chosen from the group comprising:

a visual signal; and

an audible signal.

12. The method of claim 9 wherein the signal used to locate the response unit is chosen from the group comprising:

a signal produced by the response unit that is used by the central control unit to indicate the approximate distance between the central control unit and the response unit; and

an audible signal produced by the response unit.

13. The method of claim 9 further comprising the generation of a corresponding square wave that is used to discriminate a signal as coming from the central control unit.

14. The method of claim 13, wherein both the central control unit and the response unit generate a square wave.

15. The method of claim 14, wherein the square waves of the central control unit and the response unit match.

16. The method of claim 9, wherein the transmitted signal has a synchronization field that contains data;

said method, wherein a response unit is responsive to the reception of the data, aligning its circuitry for reception of information contained in an incoming signal from the central control unit.

17. The method of claim 9, wherein the transmitted signal contains a mode field which can hold data that establishes with the response unit a mode of operation corresponding to that of the central control unit.

18. The method of claim 17, wherein the mode established by the response unit matches the mode of the central control unit.

19. A locating system having at least one central control unit with transceiving capability, a mode selector, and at least one actuator, and at least one response unit with transceiving capability and memory, both units are capable of operating in at least two modes, actuating and programming, comprising:

means in the central control unit for setting to a programming mode;

means in the central control unit for setting to an actuator mode;

means in the central control unit for activating at least one actuator;

means in the central control unit for transmitting a signal containing identification data that corresponds specifically to the particular activated actuator;

means in the response unit for receiving said transmitted signal;

means in the response unit for retaining in the storage memory said identification data contained in the signal;

means in the response unit for comparing said identification data contained in said transmitted signal with data previously stored in the memory of the response unit; and

means for responding to a match between said transmitted identification data and said previously stored data by providing at least one signal that is used to locate the response unit.

20. The system of claim 19, wherein said means for responding by providing a signal comprises:

means in the central control unit for responding to the reception of a signal from the response unit by producing a signal that indicates the approximate distance between the central control unit and the response unit, based on the strength of the received signal.

21. The system of claim 20, wherein the signal is produced by one of the means of the group comprising:

a visual signal means; and

an audible signal means.

22. The system of claim 19, wherein the signal used to locate the response unit is produced by one of the means of the group comprising:

means in the response unit for producing a signal that is used by the central control unit to indicate the approximate distance between the central control unit and the response unit; and

an audible signal means in the response unit.

23. The locating system of claim 19, further comprising:

means for generating a corresponding square wave that is used to discriminate a signal as coming from the central control unit.

24. The locating system of claim 19, further comprising:

means for the transmitted signal having a synchronization field that contains data; and

means for a response unit to be responsive to the reception of the data, aligning its circuitry for reception of information contained in an incoming signal from the central control unit.

25. The locating system of claim 19, further comprising:

means for the transmitted signal containing a mode field which can hold data that establishes with the response unit a mode of operation corresponding to that of the central control unit.

26. A central control unit, having transceiving capability, a mode selector, and at least one actuator, comprising:

means for being set to a programming mode;

means for being set to an actuator mode;

means for said actuator being activated;

means for transmitting a signal containing identification data that corresponds specifically to the particular activated actuator; and

means for responding to a match between said transmitted identification data and data previously stored in a response unit by providing at least one signal that is used to locate another device.

27. The central control unit of claim 26, wherein said means for responding by providing a signal comprises:

means for responding to the reception of a signal from the response unit by producing a signal that indicates the approximate distance between the central control unit and the response unit, based on the strength of the received signal.

28. The central control unit of claim 27, wherein the signal is produced by one of the means of the group comprising:

a visual signal means; and

an audible signal means.

29. The central control unit of claim 26, further comprising:

means for generating a corresponding square wave that is used to discriminate a signal as coming from the central control unit.

30. The central control unit of claim 26, further comprising:

means for the transmitted signal having a synchronization field that contains data;

said data causing a response unit to align its circuitry for reception of information contained in an incoming signal from the central control unit.

31. The central control unit of claim 26, further comprising:

means for the transmitted signal containing a mode field which can hold data that establishes with a response unit a mode of operation corresponding to that of the central control unit.

32. A response unit, having transceiving capability and memory, comprising:

means for receiving a transmitted signal containing identification data that corresponds specifically to a particular activated actuator;

means for retaining in the storage memory said identification data contained in said signal;

means for comparing said identification data contained in said transmitted signal with data previously stored in said memory; and

means for responding to a match between said transmitted identification data and said previously stored data by providing at least one signal that is used to locate said response unit.

33. The response unit of claim 32, wherein the signal that is used to locate said response unit is provided by one of the means of the group comprising:

an audible signal means; and

means for producing a signal that is used by a central control unit to indicate the approximate distance between the central control unit and the response unit.

34. The response unit of claim 32, further comprising:

means for generating a corresponding square wave that is used to discriminate a signal as coming from the central control unit.

35. The response unit of claim 32, further comprising:

means for being responsive to a transmitted signal having a synchronization field that contains data, aligning circuitry for reception of information contained in an incoming signal from the central control unit.

36. The response unit of claim 32, further comprising

means for using a transmitted signal containing a mode field to establish a mode of operation corresponding to that of the central control unit.