AUTOMATIC DETECTING DEVICE FOR RADIO FREQUENCY ENVIRONMENT

• US 20090207036A1
• Filed: 04/25/2008
• Published: 08/20/2009
• Est. Priority Date: 02/15/2008
• Status: Active Grant

• Current Assignee: King Yuan Electronics Company Limited
• Original Assignee: King Yuan Electronics Company Limited
• Inventors: Ko, Hsuan-Chung, Hsieh, Chen-Yang
• Granted Patent: US 7,834,775 B2
• Time in Patent Office: Days
• US Class Current: 340/662
• CPC Class Codes: H04B 1/1036 with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters H04B1/123 takes precedence; filter circuits H03H

Abstract

The present invention provides an automatic detecting device for radio frequency environment used to detect radio frequency noise. The device uses an antenna to receive radio frequency noise and the radio frequency noise is passing a radio frequency comparator and transformed into a voltage signal. Then, the voltage signal passes through an amplifier and is amplified to be an output voltage. If the output voltage exceeds a threshold voltage, it drives a post stage circuit to warn when the radio frequency noise is beyond a normal value.

Claims

1. A automatic detecting device for radio frequency noise, comprising:

an antenna for receiving said radio frequency noise;

a comparator electrically connected to said antenna, and used for receiving said radio frequency noise from said antenna and outputting a signal;

an amplifier electrically connected to said comparator, and used for amplifying said signal from said comparator;

a post stage circuit electrically connected to said amplifier, and used for receiving said signal to warn when said radio frequency noise is beyond a normal value.

2. The automatic detecting device for radio frequency noise according to claim 1, wherein said comparator is connected to a supply voltage Vcc and a ground voltage (Ground, GND), and said comparator converts said radio frequency noise into said signal and transmits to said amplifier.

3. The automatic detecting device for radio frequency noise according to claim 1, further comprising a motor, wherein said motor is connected to said antenna and rotates said antenna to broaden receiving direction of said antenna.

4. The automatic detecting device for radio frequency noise according to claim 1, further comprising a motor, wherein said motor is connected to said automatic detecting device and rotates said automatic detecting device to broaden receiving direction of said antenna.

5. The automatic detecting device for radio frequency noise according to claim 1, wherein said post stage circuit is selected from the group consisting of a counter, a light emitting diode (LED) and a buzzer.

6. The automatic detecting device for radio frequency noise according to claim 1, wherein said antenna is an F antenna.

7. The automatic detecting device for radio frequency noise according to claim 6, wherein said F antenna is selected from the group consisting of a conventional wire element IFA (Inverse F Antenna), a planar IFA and an integrated IFA.

8. The automatic detecting device for radio frequency noise according to claim 1, wherein said comparator is a radio frequency comparator.

9. The automatic detecting device for radio frequency noise according to claim 1, wherein said amplifier is a voltage amplifier.

10. The automatic detecting device for radio frequency noise according to claim 1, wherein said amplifier is an inverse amplifier.

11. The automatic detecting device for radio frequency noise according to claim 1, further comprising a resistor, wherein the output voltage from said amplifier is controlled by selecting resistance of said resistor to drive said post stage circuit.

12. An automatic detecting device for frequency jamming environment, comprising:

an antenna for receiving a plurality of radio frequency noise signals;

a radio frequency comparator connected to said antenna, and used for comparing said plurality of radio frequency noise signals and outputting a voltage signal;

an voltage amplifier connected to said radio frequency comparator, and used for amplifying said very low voltage signal from said radio frequency comparator;

a post stage circuit connected to said voltage amplifier, and used for receiving said voltage signal to warn when said radio frequency noise is beyond a normal value.

13. The automatic detecting device for frequency jamming environment according to claim 12, wherein said antenna is an F antenna.

14. The automatic detecting device for frequency jamming environment according to claim 12, wherein said F antenna is selected from the group consisting of a conventional wire element IFA, a planar IFA and an integrated IFA.

15. The automatic detecting device for frequency jamming environment according to claim 12, wherein said radio frequency comparator is connected to a supply voltage Vcc and a ground voltage (Ground, GND), and said radio frequency comparator converts said radio frequency noise into said voltage signal and transmits to said voltage amplifier.

16. The automatic detecting device for frequency jamming environment according to claim 12, wherein said post stage circuit is selected from the group consisting of a counter, a LED and a buzzer.

17. The automatic detecting device for frequency jamming environment according to claim 12, further comprising a motor, wherein said motor is connected to said antenna and rotates said antenna to broaden receiving direction of said antenna.

18. The automatic detecting device for frequency jamming environment according to claim 12, further comprising a motor, wherein said motor is connected to said automatic detecting device and rotates said automatic detecting device to broaden receiving direction of said antenna.

19. The automatic detecting device for frequency jamming environment according to claim 12, wherein said voltage amplifier is an inverse voltage amplifier.

20. The automatic detecting device for frequency jamming environment according to claim 12, further comprising a resistor, wherein the output voltage from said voltage amplifier is controlled by selecting resistance of said resistor to drive said post stage circuit.