Apparatus and method for a wireless locating device

• US 20040192333A1
• Filed: 07/16/2002
• Published: 09/30/2004
• Est. Priority Date: 07/16/2002
• Status: Abandoned Application

• Current Assignee: Amica Technologies Sendirian Berhad, AMIC Technology Corporation
• Original Assignee: Amica Technologies Sendirian Berhad, AMIC Technology Corporation
• Inventors: Khokhar, Mohammad Minhaj
• Application Number:
  US10/197,641
• Publication Number:
  US 20040192333A1
• Time in Patent Office: Days
• US Class Current: 455/456.1
• CPC Class Codes: G08B 13/1427 with transmitter-receiver for distance detection
• CPC Class Codes: G08B 21/0247 System arrangements wherein the alarm criteria uses signal strength
• CPC Class Codes: G08B 21/025 System arrangements wherein the alarm criteria uses absence of reply signal after an elapsed time
• CPC Class Codes: G08B 21/0252 System arrangements wherein the child unit emits, i.e. the child unit incorporates the emitter

Abstract

A system for wirelessly determining that an object is within a predetermined distance from a user is envisioned. The system is made of a transmitter, associated with the object that has a transmitting circuitry that transmits a signal independently of the location of the transmitter. The system also has a receiver associated with the user. The receiver is made up of a receiving circuitry that receives the signal, and an activation circuitry that alerts the user. A logical circuitry, communicatively coupled to the receiving circuitry and the activation circuitry, determines whether the receiver is beyond the predetermined distance from the object based on characteristics of the signal. If the receiver is determined to be beyond the predetermined distance, the activation circuitry is enabled.

Claims

1. A system for wirelessly determining that an object is within a predetermined distance from a user, the system comprising:

a transmitter, associated with the object, having a transmitting circuitry that transmits a signal independently of the location of the transmitter; and

a receiver, associated with the user, the receiver comprising;

a receiving circuitry that receives the signal;

an activation circuitry that alerts the user; and

a logical circuitry, communicatively coupled to the receiving circuitry and the activation circuitry, that determines whether the receiver is beyond the predetermined distance from the object based on characteristics of the signal, and if the receiver is determined to be beyond the predetermined distance, enables the activation circuitry.

2. The system of claim 1 wherein the signal contains a code.

3. The system of claim 2 wherein the logical circuitry determines if the code has been received.

4. The system of claim 1 wherein the signal is transmitted on a predetermined periodic basis.

9. The system of claim 1 wherein the signal is transmitted continuously.

5. A system for wirelessly determining that an object is within a predetermined distance from a user, the system comprising:

a transmitter, associated with the object, having a transmitting circuitry that transmits a signal on a predetermined basis; and

a receiver, associated with the user, the receiver comprising;

a receiving circuitry that receives the signal;

an activation circuitry that alerts the user; and

a logical circuitry, communicatively coupled to the receiving circuitry and the activation circuitry, that enables the activation circuitry in the absence of receiving the transmitted signal.

6. The system of claim 5 wherein the signal contains a code.

7. The system of claim 6 wherein the logical circuitry determines if the code has been received.

8. The system of claim 5 wherein the signal is transmitted on a predetermined periodic basis.

10. A receiver for wirelessly determining that an object is within a predetermined distance from a user, a transmitter associated with the object transmitting signal, the receiver comprising:

a receiving circuitry that receives the signal;

an activation circuitry that alerts the user; and

a logical circuitry, communicatively coupled to the receiving circuitry and the activation circuitry, that enables the activation circuitry in the absence of receiving the transmitted signal.