JP2002223469A - Mobile radio equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide mobile radio equipment that detects position information denoting an absolute azimuth of a current point and transmits/receives the detected position information. SOLUTION: The mobile radio telephone system having at least an input output means that inputs/outputs voice information and data information and a transmission reception means that transmits/receives the voice information and the data information wirelessly, is provided with a reception means that receives a radio wave outputted from three or more satellites and with a detection means that detects position information denoting the absolute azimuth of the current point on the basis of the received radio wave and the transmission reception means transmits/receives the position information wirelessly in addition to the voice information and the data information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable radio telephone device, and more particularly, to detecting position information indicating an absolute direction of a current position, and transmitting or displaying the detected position information. And a portable wireless telephone device.

[0002]

2. Description of the Related Art In recent years, pagers (registered trademark) and portable radio telephones have become widespread with the progress of the information society.

On the other hand, a satellite system capable of measuring an absolute azimuth in a global range is being developed. In this system, radio waves output from three or more satellites are received, and position information indicating the absolute azimuth (latitude / longitude) of the current position of the receiving device is detected based on the received radio waves. I have to. This system is
Although developed for military purposes, it is also used in automotive navigation systems, as described in the Motor Fan magazine, February 1990.

FIG. 5 is a perspective view showing a conventional portable radio telephone device.

[0005] As shown in FIG.
Is a liquid crystal display 2, a receiver 3, and a microphone 4
, An antenna 5, a key button 6, and a built-in circuit (not shown), so that a call can be made cordlessly. By operating the key buttons 6 on the liquid crystal display 2, it is possible to display, for example, a telephone number, a personal name, and the like registered in advance.

However, a conventional portable radio telephone device is:
Although it has a function of transmitting and receiving voice information and data information, it does not have a function of detecting position information indicating the absolute position of the current position and transmitting or displaying the position information.

However, there is a method of detecting the position information of each portable radio telephone device at the base station of the portable radio telephone device. This method detects the position information by using the phase difference of the radio waves when the portable radiotelephone device reproduces and returns the transmission monitoring signals from a plurality of base stations, and the error is about 7 km. Therefore, even if the portable wireless telephone device uses the position information detected by the base station to detect its own position information, accurate position information cannot be obtained.

[0008]

As described above, in the conventional portable radio telephone apparatus, when the user is lost or heading for an unfamiliar place, his / her own position information is accurately detected. I couldn't do that. In addition, it was not possible to transmit its own location information to the other party or to receive the location information transmitted from the other party.

For example, in an emergency such as an accident, it is necessary to notify the police station or fire department of the accurate location information as soon as possible. There was a problem that notification might not be possible.

Therefore, it is conceivable to use the above-mentioned satellite system in a portable radio telephone device to detect its own position information.

An object of the present invention is to provide a portable radio telephone device capable of accurately detecting position information indicating an absolute azimuth of a current position and transmitting or displaying the detected position information. It is in.

Another object of the present invention is to provide a portable wireless telephone device capable of receiving and displaying position information transmitted from a communication partner.

[0013]

In order to use a satellite system, a receiving means for receiving a radio wave output from the satellite system and position information indicating an absolute azimuth of a current position are detected based on the received radio wave. And a detection unit that performs the detection.

That is, according to the present invention, the receiving means and the detecting means are added to a conventional portable radio telephone apparatus, and the transmission / reception means of the portable radio telephone apparatus comprises:
The detected position information can be transmitted.

Further, display means for displaying the contents indicating the position information may be added so that the position information of the portable radio telephone device can be displayed. The position information received from the other party may be displayed.

[0016]

In practice, radio waves output from three or more satellites are actually provided with identification codes, respectively, so that it is possible to identify which radio wave is output from which satellite. The detecting means calculates the distance to each satellite which is the emission source of the received radio wave, calculates them, and indicates the absolute azimuth (latitude / longitude) of the current location of the portable radio telephone device which is receiving the radio waves. Detect location information. The use of a satellite system makes it possible to detect position information with an accuracy of about 25 meters.

The transmitting / receiving means transmits the detected location information to the other party.

Further, the display means displays the contents indicating the detected position information. As a display method, for example, it is displayed by numerical values of latitude / longitude, or, for example, based on a table stored in advance, “around 周 辺 station”
In such a manner, the position information is displayed as a specific message. This table stores some latitude and longitude values and corresponding geographic information. Further, for example, map information stored in advance is displayed, and a portion corresponding to the position information in the map information is displayed. In view of the size and storage capacity of the portable radio telephone device, and the difference between the frequency of talking and the frequency of displaying position information, the display means (or the above The display means and the detection means) may be actually incorporated in another device connectable to the portable wireless telephone device.

The transmitting / receiving means receives the position information transmitted from the other party, and the display means displays the received position information in the same manner as its own position information.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a portable wireless telephone device according to a first embodiment of the present invention, and FIG. 2 is a functional block diagram of the portable wireless telephone device according to the first embodiment of the present invention.

In FIGS. 1 and 2, 1 is a portable radio telephone main body, 2 is a liquid crystal display, 3 is a receiver, 4
Is a microphone, 5 is a call transmitting / receiving antenna, 6 is a key button, 10 is a main body function unit, 11 is a transmitting / receiving circuit, 12 is a main control circuit, 13 is an image control circuit, 14 is a map data memory, 20 is an image display unit, 21 is a driving circuit, 30 is a position detecting unit, 31 is a satellite receiving antenna, 32 is a receiving circuit,
Reference numeral 3 denotes an arithmetic processing circuit.

The portable radiotelephone main body 1 roughly includes a main body function unit 10, an image display unit 20, and a position detection unit 30.
Are mechanically integrally connected and electrically connected.

The main body function unit 10 includes a transmission / reception circuit 11, a main control circuit 12, and an image control circuit 1 connected to the receiver 3, the microphone 4, the key button 6, and the call transmitting / receiving antenna 5.
3, a main control circuit 1 having a map data memory 14;
2 is connected to a receiver 3, a microphone 4, a key button 6, an image control circuit 13, and an arithmetic processing circuit 33 of the position detection unit 30.

The position detecting section 30 includes a 1.5 GHz band satellite receiving antenna 31, a receiving circuit 32, and an arithmetic processing circuit 33.
It has. The satellite receiving antenna 31 receives radio waves output from three or more satellites, the receiving circuit 32 demodulates the received radio waves, and the arithmetic processing circuit 33 generates an absolute azimuth based on the demodulated radio waves. Location information indicating
Output to the main body function unit 10. The position information output from the arithmetic processing circuit 33 is subjected to image processing together with the map information stored in the map data memory 14 by the image control device 13 in the main body function unit 10, and is output to the video display unit 20.

The image display unit 20 includes a liquid crystal display 2,
A drive circuit 21 is provided. The drive circuit 21 receives the image processing result output from the main body function unit 10 and displays the result on the liquid crystal display 2.

Thus, on the liquid crystal display 2,
Map information in which a portion corresponding to the position information is marked is displayed. Therefore, the user of the portable radio telephone device
Know where you are.

The control of the position detector 30 may be performed by the main body function unit 10 or may be performed based on a control signal transmitted from the base station.

On the other hand, in the main body function unit 10, depending on the operation of the key button 6, the transmission / reception circuit 11 transmits the position information output from the arithmetic processing circuit 33 of the position detection unit 30.
The call is transmitted from the call transmitting / receiving antenna 5 to the call partner.

Further, in the main body function unit 10, when the information received by the call transmitting / receiving antenna 5 and demodulated by the transmitting / receiving circuit 11 is included in the position information, the image control circuit 13 is operated in the same manner as described above. This position information is subjected to image processing together with the map information stored in the map data memory 14 and output to the video display unit 20. The image display unit 20 receives the image processing result output from the main body function unit 10 and displays the result on the liquid crystal display 2. Note that normal audio information is output from the receiver 3 as audio.

As described above, if both parties have the portable wireless telephone device of the present embodiment, it is possible to transmit and receive location information, so that one or both of them cannot be geographically informed. Even under circumstances, location information can be notified accurately and promptly, and in the event of an emergency such as an accident, the location information of the site can be accurately and quickly notified even in situations where geography is not known. can do.

In this embodiment, the position information is displayed together with the map information as a display method. However, instead of the map data memory 14, some position information and corresponding geographical information are displayed. A geographic data memory for storing information is provided, and location information closest to the detected location information is searched, and geographic information corresponding to the searched location information is stored in, for example, “around the 〇〇 station”, “ Xx Around the park ". This makes it unnecessary to perform complicated image processing as compared with the case where the image is displayed together with the map information.

FIG. 3 is a perspective view of a portable wireless telephone device according to a second embodiment of the present invention.

The configuration of the portable wireless telephone device of this embodiment is as follows.
Although the configuration is the same as that of the portable wireless telephone device of the first embodiment, the map data memory 14 is not required, and the liquid crystal display 2 may or may not be provided.

In the present embodiment, the portable wireless telephone body 1 is connected to a memory device 42 (for example, a large amount of map information or detailed map information) via a dedicated cable 41.
A CD-ROM driver device) and a large display device (for example, a CRT display device) 40 can be connected. Thereby, the position information obtained by the portable wireless telephone main body 1 together with the map information stored in the memory device 42 is displayed.
It can be displayed on the large display device 40.

In this embodiment, the memory device 4
2 and the large-sized display device 40 can be connected separately, but may be connected to a device in which the memory device 42 and the large-sized display device 40 are integrated.

FIG. 4 is a perspective view of a portable radio telephone device according to a third embodiment of the present invention.

The configuration of the portable wireless telephone device of this embodiment is as follows.
The configuration is the same as that of the portable radio telephone device of the first embodiment, except that a satellite reception / transmission / reception shared antenna 34 (for example, a helical antenna) is used instead of the satellite reception antenna 31 and the transmission / reception antenna 5. It has.

This is because the frequency of the radio wave output from the satellite is in the 1.5 GHz band, and the transmission / reception frequency of the digital radio telephone is also assigned to the 1.5 GHz band. By using a high antenna, sharing becomes possible.

The present invention can be variously modified in addition to the above-described embodiment. For example, only the main body function unit 10 and the position detection unit 30 are provided, and only the transmission of the position information is performed. You may do so. Furthermore, another device including the image display unit 20 and the position detection unit 30 may be docked with a portable wireless telephone including the main body function unit 10.

[0041]

As described above, the portable radio telephone device of the present invention can detect position information indicating the absolute azimuth of the current position, and can transmit and display the detected position information. This has the effect.

Therefore, for example, even if one or both of them are in a situation where the location is unfamiliar with the geography, the location information can be notified accurately and promptly. The utility value is high, such as being able to accurately and quickly notify the location information of the site even in a difficult situation.

[Brief description of the drawings]

FIG. 1 is a perspective view of a portable wireless telephone device according to a first embodiment of the present invention.

FIG. 2 is a functional block diagram of the portable wireless telephone device according to the first embodiment of the present invention.

FIG. 3 is a perspective view of a portable wireless telephone device according to a second embodiment of the present invention.

FIG. 4 is a perspective view of a portable wireless telephone device according to a third embodiment of the present invention.

FIG. 5 is a perspective view of a conventional portable wireless telephone device.

[Explanation of symbols]

1. Portable wireless telephone body 2. Liquid crystal display 3.
Receiver, 4 ... microphone, 5 ... antenna for transmitting and receiving calls,
6 key button, 10 body function unit, 11 transmission / reception circuit, 12 main control circuit, 13 image control circuit, 14 map data memory, 20 image display unit, 21 drive circuit,
Reference numeral 30: position detection unit, 31: satellite reception antenna, 32: reception circuit, 33: arithmetic processing circuit, 34: satellite reception / communication transmission / reception shared antenna, 40: large display device, 41: dedicated cable, 42: memory device.

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[Procedure amendment]

[Submission date] December 5, 2001 (2001.12.
5)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Name of invention

[Correction method] Change

[Correction contents]

[Title of the Invention] portable No SenSo location

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0042

[Correction method] Deleted

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshio Abe 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture F-term in Hitachi Image Information System Co., Ltd. 5J062 AA08 CC07 HH04 HH05 5K023 AA07 HH01 LL05 MM00 MM25 5K027 AA11 BB01 FF01 FF22 HH26 5K067 AA34 BB04 DD20 FF03 FF23 GG01 GG11 HH23 JJ52 JJ56 KK01

Claims (6)

[Claims] 1. A portable radio telephone apparatus comprising at least input / output means for inputting / outputting voice information and data information, and transmitting / receiving means for transmitting / receiving voice information and data information via radio, wherein three or more satellites are provided. Receiving means for receiving the radio wave output from the device, and detecting means for detecting position information indicating the absolute azimuth of the current position based on the received radio wave, wherein the transmitting and receiving means includes, in addition to the voice information and the data information, A portable wireless telephone device for transmitting and receiving the position information via wireless communication. 2. The portable wireless telephone device according to claim 1, further comprising display means for displaying contents indicating the position information. 3. The portable wireless telephone device according to claim 2, further comprising storage means for storing a plurality of absolute directions and geographic information corresponding to said absolute directions, wherein said display means corresponds to said position information. A portable wireless telephone device displaying geographical information to be displayed. 4. The portable wireless telephone device according to claim 2, further comprising a storage unit for storing map information, wherein said display unit corresponds to said map information and said position information in said map information. A portable wireless telephone device for displaying contents indicating a portion. 5. The portable wireless telephone device according to claim 1, wherein an external storage device for storing map information, said map information, and a portion corresponding to said position information in said map information. A portable wireless telephone device comprising a connection means for connecting to an external display device for displaying contents. 6. A portable radio telephone apparatus according to claim 1, wherein said transmitting / receiving means and said receiving means share the same antenna. .