Each area automatic selection receiver for emergency radio signal

• US 20020145558A1
• Filed: 07/05/2001
• Published: 10/10/2002
• Est. Priority Date: 04/06/2001
• Status: Active Grant

• Current Assignee: General Research of Electronics, Inc.
• Original Assignee: General Research of Electronics, Inc.
• Inventors: Yokoyama, Nobuaki, Imazeki, Kazuyoshi, Hiratsuka, Masaki
• Granted Patent: US 6,535,164 B2
• Time in Patent Office: Days
• US Class Current: 342/357.06
• CPC Class Codes: H04H 20/59 for emergency or urgency

Abstract

An each area automatic selection receiver of an emergency radio signal is an emergency broadcast receiver which enables current area code CAC to be updated automatically. This receiver is constituted in such a way that a GPS receiver obtains current position information by use of the satellite positioning system, then, a converter converts the current position information into an area code by use of a conversion table to write the area code into a code memory. For that reason, even though the receiver moves anywhere, contents of the code memory are always updated to an area code of an area of the movement destination automatically. Therefore, emergency broadcast of the area is always capable of being received correctly.

Claims

1. An each area automatic selection receiver of an emergency radio signal, which is a receiver for receiving each area emergency broadcast electric wave, and said receiver detects an area code of indicating distributed area of a reception message which is in modulation to be output, followed by outputting said reception message when agreeing said detected area code with an established area code of current position where said receiver exists, comprising:

receiving means for GPS (Global Positioning System) signal;

first means for obtaining an established area code of said current position corresponding to said GPS signal; and

second means for supplying said established area code to said receiver.

2. An each area automatic selection receiver of an emergency radio signal according to claim 1, wherein said first means have an area code reference table for converting position data corresponding to reception position obtained from said GPS signal into said established area code, and said second means have a memory for storing said established area code.