Mobile communication device for receiving alarm warnings and a method thereof

• US 20070008109A1
• Filed: 01/10/2006
• Published: 01/11/2007
• Est. Priority Date: 06/16/2005
• Status: Active Grant

• Current Assignee: Lite-On Technology Corporation
• Original Assignee: Lite-On Technology Corporation
• Inventors: Wang, Shi
• Granted Patent: US 7,405,668 B2
• Time in Patent Office: Days
• US Class Current: 340/539.110
• CPC Class Codes: G08B 21/10 responsive to calamitous events, e.g. tornados or earthquakes
• CPC Class Codes: G08B 25/12 Manually actuated calamity alarm transmitting arrangements emergency non-personal manually actuated alarm, activators, e.g. details of alarm push buttons mounted on an infrastructure
• CPC Class Codes: G08B 27/008 with transmission via TV or radio broadcast

Abstract

A method for receiving alarm warnings with a mobile communication device, comprising the steps of: storing a district—warning radio frequency contrast table in the mobile communication device, wherein the district—warning radio frequency contrast table records a relationship between a plurality of districts and a plurality of warning radio frequencies for broadcasting the audio warning messages corresponding to one of the plurality of districts; finding a first warning radio frequency corresponding to the first district of a user location in the district—warning radio frequency contrast table, wherein the user carries the mobile communication device, the first district is one of the plurality of districts, and the first warning radio frequency is one of the plurality of warning radio frequency; and receiving a radio signal according to the first warning radio frequency and demodulating the radio signal to obtain a first audio warning message corresponding to the first district.

Claims

1. A method for receiving alarm warnings with a mobile communication device, comprising the steps of:

storing a district—

warning radio frequency contrast table in the mobile communication device, wherein the district—

warning radio frequency contrast table records a relationship between a plurality of districts and a plurality of warning radio frequencies for broadcasting the audio warning messages corresponding to one of the plurality of districts;

finding a first warning radio frequency corresponding to the first district of a user location in the district—

warning radio frequency contrast table, wherein the user takes the mobile communication device with him, the first district is one of the plurality of districts, and the first warning radio frequency is one of the plurality of warning radio frequency; and

receiving a radio signal according to the first warning radio frequency and demodulating the radio signal to obtain a first audio warning message corresponding to the first district.

2. The method as claimed in claim 1, further comprising the step of:

receiving a positioning data indicating the user location from a global positioning system (GPS) satellite to obtain the user location.

3. The method as claimed in claim 1, further comprising the step of:

receiving a user location data manually input by the user.

4. The method as claimed in claim 1, further comprising the step of:

monitoring the spectrum of the first audio warning message to detect a warning alarm tone; and

broadcasting the first audio warning message with a loudspeaker to inform the user if the warning alarm tone is detected.

5. The method as claimed in claim 1, further comprising the step of:

storing a disaster—

code contrast table in the mobile communication device, wherein the disaster—

code contrast table records a relationship between a plurality of warning text messages and a plurality of digital codes corresponding to one of the plurality of warning text messages;

demodulating a high-frequency radio signal to obtain a first digital code;

decoding the first digital code according to the disaster—

code contrast table to obtain a first warning text message;

wherein the first digital code is one of the plurality of digital codes, and the first warning text message is one of the plurality of warning text messages; and

showing the first warning text message on the screen of the mobile communication device to inform the user.

6. The method as claimed in claim 5, further comprising the step of:

stopping broadcasting of the first audio warning message with the loudspeaker and clearing the screen of the mobile communication device if the first warning text message represents an end of message.

7. The method as claimed in claim 1, wherein the mobile communication device is selected from the group of a cell phone, a smart phone, a personal digital assistant, and a portable MP3 player.

8. A mobile communication device for receiving alarm warnings, comprising:

a memory module, for storing a district—

warning radio frequency contrast table, wherein the district—

warning radio frequency contrast table records a relationship between a plurality of districts and a plurality of warning radio frequencies for broadcasting the audio warning messages corresponding to one of the plurality of districts;

a signal processing module, coupled to the memory module, for finding a first warning radio frequency corresponding to the first district of a user location in the district—

warning radio frequency contrast table, wherein the first district is one of the plurality of districts, and the first warning radio frequency is one of the plurality of warning radio frequency; and

a radio receiver module, coupled to the signal processing module, for receiving a radio signal according to the first warning radio frequency and demodulating the radio signal to obtain a first audio warning message corresponding to the first district.

9. The mobile communication device as claimed in claim 8, further comprising a positioning module, coupled to the signal processing module, for receiving a positioning data indicating the user location from a global positioning system (GPS) satellite to obtain the user location.

10. The mobile communication device as claimed in claim 8, further comprising a data input module, coupled to the signal processing module, for receiving a user location data manually input by the user.

11. The mobile communication device as claimed in claim 8, wherein the signal processing module continues monitoring the spectrum of the first audio warning message to detect a warning alarm tone, and the signal processing module broadcasts the first audio warning message with a loudspeaker to inform the user if the warning alarm tone is detected.

12. The mobile communication device as claimed in claim 8, wherein the memory module stores a disaster—

code contrast table, the disaster—

code contrast table records a relationship between a plurality of warning text messages and a plurality of digital codes corresponding to one of the plurality of warning text messages, and the signal processing module demodulates a high-frequency radio signal to obtain a first digital code, decodes the first digital code according to the disaster—

code contrast table to obtain a first warning text message, and shows the first warning text message on a screen of the mobile communication device to inform the user.

13. The mobile communication device as claimed in claim 12, wherein the signal processing module stops broadcasting the first audio warning message with the loudspeaker and clears the screen of the mobile communication device if the first warning text message represents an end of message.

14. The mobile communication device as claimed in claim 8, wherein the signal processing module is selected from the group of a digital signal processor (DSP), a controller, and the combination thereof.

15. The mobile communication device as claimed in claim 8, wherein the memory module is selected from the group of a read only memory (ROM) and a random access memory (RAM).

16. The mobile communication device as claimed in claim 10, wherein the data input module is a set of keys.

17. The mobile communication device as claimed in claim 8, wherein the mobile communication device is selected from the group of a cell phone, a smart phone, a personal digital assistant, and a portable MP3 player.