Pet locator

• US 6,172,640 B1
• Filed: 07/28/1999
• Issued: 01/09/2001
• Est. Priority Date: 06/18/1999
• Status: Expired due to Fees

• Current Assignee: Pfizer Inc.
• Original Assignee: Jennifer Durst
• Inventors: McAlexander, Joseph C., Fowler, Eugene F., Durst, Jennifer
• Primary Examiner(s): Tarcza, Thomas H.
• Assistant Examiner(s): PHAN, DAO LINDA
• Application Number:
  US09/362,788
• Time in Patent Office: 531 Days
• Field of Search: 342/357.01, 342/357.06, 342/357.07, 342/357.09, 342/357.13, 342/457, 701/213, 340/573.3, 340/573.4
• US Class Current: 342/357.55
• CPC Class Codes: A01K 27/009 with electric-shock, sound, magnetic- or radio-waves emitting devices
• CPC Class Codes: G01S 19/16 Anti-theft; Abduction
• CPC Class Codes: G01S 19/17 Emergency applications
• CPC Class Codes: G01S 19/34 Power consumption
• CPC Class Codes: G01S 19/36 relating to the receiver frond end
• CPC Class Codes: G01S 2205/008 using a mobile telephone network
• CPC Class Codes: G01S 5/0027 of actual mobile position, i.e. position determined on mobile
• CPC Class Codes: G08B 21/0247 System arrangements wherein the alarm criteria uses signal strength
• CPC Class Codes: G08B 21/0261 System arrangements wherein the object is to detect trespassing over a fixed physical boundary, e.g. the end of a garden
• CPC Class Codes: G08B 21/0269 System arrangements wherein the object is to detect the exact location of child or item using a navigation satellite system, e.g. GPS

Abstract

There is disclosed an object locator system (10) for requesting and obtaining information about the location of an individual animal or moveable object, having a lightweight, attached object locator (42), that is present in a region served by a two-way paging system (12) and a global positioning satellite system (50). The object locator (42) may be selectively activated to conserve power or enabled to respond only when beyond or within a boundary. Further, the object locator system (10) may provide the location information in several forms including rectangular or polar coordinates referred to a base station (18) or origin, position on a map display, etc.

Claims

1. A method for locating or tracking an animal having attached thereto an object locator operable to communicate via a two-way paging system with a base station, comprising the steps of:

securing a collar, having the object locator and a GPS antenna coupled thereto integrated with the collar, to the body of the animal;

transmitting a request for location information from the base station over the paging system to a paging receiver integrated with the object locator;

enabling a GPS receiver in the object locator to acquire location coordinates for a position of the animal from a GPS system and store the location coordinates in a memory in the object locator;

disabling the GPS receiver after acquisition of the location coordinates;

loading the location coordinates stored in the memory into a paging transmitter integrated with the object locator and transmitting the location coordinates via the paging system to the base station; and

outputting the location of the animal in human readable form at the base station.

2. The method of claim 1, wherein the step of securing comprises the step of positioning the collar around the body of the animal wherein the antenna coupled to the GPS receiver in the object locator is disposed above the animal and the object locator is disposed below the animal, wherein the greater mass of the object locator maintains the antenna disposed above and facing away from the animal.

3. The method of claim 1, wherein the step of transmitting comprises the step of:

dialing a telephone number address assigned to the object locator.

4. The method of claim 1, wherein the step of enabling comprises the step of:

generating and coupling a control signal in the object locator, responsive to the request for location coordinates, to an enable input of the GPS receiver to activate the GPS receiver.

5. The method of claim 1, wherein the step of disabling comprises the step of:

removing a control signal, provided in response to the request, for location information from an enable input of the GPS receiver thereby inactivating the GPS receiver.

6. The method of claim 1, wherein the step of loading comprises the steps of:

reading the location coordinates from the memory;

converting the location coordinates to a modulating format; and

modulating the paging transmitter.

7. The method of claim 1, wherein the step of outputting comprises the steps of:

processing the location coordinates to convert the location information into a displayable format; and

displaying the location information.

8. The method of claim 7, wherein the step of processing comprises the step of:

converting the location coordinates to degrees of longitude and latitude.

9. The method of claim 7, wherein the step of processing comprises the step of:

converting the location coordinates to an indicated position on a map.

10. The method of claim 7, wherein the step of processing comprises the step of:

converting the location coordinates to a heading and a range relative to an origin located at the base station.

11. Apparatus for locating or tracking an animal having attached to the body thereof an object locator operable to communicate via a two-way paging system with a base station, comprising:

means for securing a collar, having said object locator and a GPS antenna coupled thereto integrated with said collar, to said body of said animal;

means for transmitting a request for location information from said base station over said paging system to a paging receiver integrated with said object locator;

means for enabling a GPS receiver in said object locator to acquire location coordinates for a position of said animal from a GPS system and store said location coordinates in a memory in said object locator;

means for disabling said GPS receiver after acquisition of said location coordinates;

means for loading said location coordinates stored in said memory into a paging transmitter integrated with said object locator and transmitting said location coordinates via said paging system to said base station; and

means for outputting said location of said animal in human readable form at said base station.

12. The apparatus of claim 11, wherein said means for securing comprises means for positioning said collar around said body of said animal wherein said antenna coupled to said GPS receiver in said object locator is disposed above said animal and said object locator is disposed below said animal, wherein said greater mass of said object locator maintains said antenna disposed above and facing away from said animal.

13. The apparatus of claim 11, wherein said means for transmitting comprises:

means for dialing a telephone number address assigned to said object locator.

14. The apparatus of claim 11, wherein said means for enabling comprises:

means for generating and coupling a control signal in said object locator, responsive to said request for location coordinates, to an enable input of said GPS receiver to activate said GPS receiver.

15. The apparatus of claim 11, wherein said means for disabling comprises:

means for removing a control signal, provided in response to said request for location information, from an enable input of said GPS receiver thereby inactivating said GPS receiver.

16. The apparatus of claim 11, wherein said means for loading comprises:

means for reading said location coordinates from said memory;

means for converting said location coordinates to a modulating format; and

means for modulating said paging transmitter.

17. The apparatus of claim 11, wherein said means for outputting comprises:

means for processing said location coordinates to convert said location information into a displayable format; and

means for displaying said location information.

18. The apparatus of claim 17, wherein said means for processing comprises:

means for converting said location coordinates to degrees of longitude and latitude.

19. The apparatus of claim 17, wherein said means for processing comprises:

means for converting said location coordinates to an indicated position on a map.

20. The apparatus of claim 17, wherein said means for processing comprises:

means for converting said location coordinates to a heading and a range relative to an origin located at said base station.