Systems, apparatus, and methods for providing and detecting information regarding a person, location, or object

• US 8,624,722 B2
• Filed: 11/13/2008
• Issued: 01/07/2014
• Est. Priority Date: 11/13/2008
• Status: Active Grant

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Inventors: Miller, Julie L., Chu, Liang
• Primary Examiner(s): Lee, Benjamin C
• Assistant Examiner(s): KING, CURTIS J
• Application Number:
  US12/270,733
• Publication Number:
  US 20100117906A1
• Time in Patent Office: 1,881 Days
• Field of Search: None
• US Class Current: 340/539.1
• CPC Class Codes: G01S 13/825 with exchange of information between interrogator and responder
• CPC Class Codes: G01S 5/0218 Multipath in signal reception
• CPC Class Codes: G01S 5/06 Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements G01S5/12 takes precedence

Abstract

An apparatus for providing and detecting information regarding a person, location, or object includes a power supply, a helicoil dipole antenna, a transmitter, a receiver configured to receive signals from remote transmitters at a designated frequency, a computer processor, and a memory device configured to store an identifier associated with the apparatus. Logic instructions embedded on the memory device are configured to compare an identifier decoded from received signals to the identifier associated with the apparatus. When the identifier decoded matches the identifier associated with the apparatus, the instructions decode a return frequency from the signal, and generate return signals. The return signals include the identifier associated with the apparatus, the transmitter is activated only when the transmitter transmits the return signals at the return frequency.

Claims

1. An apparatus comprising:

a self-contained power supply;

a helicoil dipole antenna coupled to the power supply;

a transmitter coupled to the power supply;

a receiver coupled to the power supply and configured to receive signals from remote transmitters at a designated frequency;

a computer processor coupled to the power supply;

a memory device coupled to the computer processor and configured to store an identifier associated with the apparatus;

one or more sensor devices that provide information regarding health status of a person or object;

logic instructions embedded on the memory device, the logic instructions configured to;

compare an identifier decoded from received signals to the identifier associated with the apparatus; and

when the identifier decoded matches the identifier associated with the apparatus;

decode a return frequency from the signal, and

generate return signals, wherein the return signals include the identifier associated with the apparatus, and the transmitter is activated only when the transmitter transmits the return signals at the return frequency;

wherein the return signals include an address of the apparatus as the identifier and information regarding a person or an object associated with the apparatus but not a physical location of the person or the object, wherein the information includes the information regarding health status of the person or object;

wherein the received signals include a wake up code, an encryption code, transmit data rate, operation mode, the identifier, and the return frequency; and

wherein the logic instructions are further configured to determine whether the apparatus was removed from the person or object and include data in the return signal that indicates whether the apparatus was removed from the person or object.

2. The apparatus of claim 1, wherein the transmitter is deactivated unless the transmitter is transmitting the return signals at the return frequency.

3. The apparatus of claim 1, wherein the transmitter transmits the return signals that includes the address, and information regarding the person or the object.

4. The apparatus of claim 1, wherein the receiver is a rake receiver including a plurality of sub-receivers that are delayed slightly from one another in order to tune in to multi-path components of the received signals.

5. The apparatus of claim 1, wherein the apparatus is smaller than one inch in length and one-quarter inch in width.

6. The apparatus of claim 1, wherein the logic instructions are further configured to receive and transmit voice data.

7. The apparatus of claim 1, wherein the apparatus operates after being swallowed by the person.

8. The apparatus of claim 1, wherein the apparatus transmits and receives signals in a frequency range from five hundred megahertz to one and one tenth (1.1) gigahertz.

9. The apparatus of claim 1, further comprising:

a turbo coder coupled to the power supply, the turbo coder operable to reduce error of the signals transmitted and received by the apparatus.

10. The apparatus of claim 1, wherein the transmitter transmits a return message that indicates the presence of a substance in an environment where the apparatus is located.

11. The apparatus of claim 1, further comprising a rake filter coupled to the power supply, the rake filter reducing the noise received by the apparatus.

12. The apparatus of claim 1, further comprising a turbo coder, the turbo coder increasing the accuracy of the signal received by the apparatus.

13. The apparatus of claim 1, wherein the logic instructions are further configured to determine whether the apparatus was removed from the person or object based on the information regarding health status of the person or object.

14. A system comprising:

an automated controller including logic instructions on computer readable media configured to;

store a database of addresses and corresponding transmission frequencies;

store identity information when a person or object is associated with one of the addresses;

receive an alert message if the person or object is reported missing, the alert message including the identity information for the person or object;

generate a message that includes a transmitter wake-up code, an encryption code, transmit data rate, operation mode, a return frequency, and one of the addresses that is associated with a capsule assigned to the person or object;

a transmitter to transmit the message at a designated frequency;

a receiver to receive response signals from the capsule at the designated frequency, and decode the address associated with the capsule from the response signals, wherein the response signals include information regarding the person or object but do not include a physical location of the person or object and wherein the information includes information indicating health status of the person or object wherein the information indicating health status of the person or object is generated by one or more sensor devices that provide the information regarding health status of the person or object; and

the automated controller further including logic instructions on computer readable media configured to;

determine a location of the person or object based on time difference of arrival of the response signals; and

decode the information regarding the person or object from the response signals; and

wherein the logic instructions are further configured to determine whether the capsule was removed from the person or object and include data in the response signal that indicates whether the apparatus was removed from the person or object.

15. The system of claim 14, wherein the designated frequency is greater than five hundred (500) megahertz and less than one and one tenth (1.1) gigahertz.

16. The system of claim 14, wherein the logic instructions are further configured to decode the information indicating health status of the person or object.

17. The system of claim 14, wherein the logic instructions are further configured to decode data from the response signals, the data indicating whether the capsule associated with the person or object has been removed from the person or object.

18. The system of claim 14, wherein the logic instructions are further configured to generate a search pattern and to periodically transmit the message that includes the transmitter wake-up code and the address while the search pattern is executed.