JP2004242343A - Portable radio telephone apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable radio telephone apparatus which detects location information indicating an absolute azimuth of a current spot and transmits/receives the detected location information. <P>SOLUTION: The portable radio telephone apparatus provided with at least an input/output means for inputting/outputting audio information and data information and a transmitting/receiving means for transmitting/receiving the audio information and the data information by radio, is further provided with a receiving means for receiving radio waves outputted from three or more satellites and a detection means for detecting the location information indicating the absolute azimuth of the current spot on the basis of the received radio waves. The transmitting/receiving means transmits/receives the location information by radio in addition to the audio information and the data information. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a portable wireless telephone device, and more particularly to a portable wireless telephone device capable of detecting position information indicating an absolute azimuth of a current location, transmitting and displaying the detected position information. .

  2. Description of the Related Art In recent years, pagers and portable wireless telephones have become widespread with the progress of the information society.

  On the other hand, satellite systems capable of measuring the absolute azimuth in a global range are 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 was developed for military purposes, but has also been 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.

  As shown in FIG. 5, the portable wireless telephone body 1 includes a liquid crystal display 2, a receiver 3, a microphone 4, an antenna 5, a key button 6, a built-in circuit (not shown), and a cordless phone. It is possible to make a call with. 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, although the conventional portable wireless telephone device has a function of transmitting and receiving voice information and data information, it detects position information indicating the absolute position of the current position and transmits or displays the position information. Did not have the function of

  However, in the base station of the portable wireless telephone device, there is a method of detecting the position information of each portable wireless telephone device. This method detects position information by using the phase difference of radio waves when a portable radiotelephone device reproduces and returns transmission monitoring signals from a plurality of base stations, and an 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.

  As described above, in the conventional portable wireless telephone device, it is not possible to accurately detect its own position information when it is lost or heading for an unfamiliar place. In addition, it has been impossible to transmit its own location information to the other party or to receive the location information transmitted from the other party.

  For example, in the event of an emergency such as an accident, it is necessary to notify police and fire departments of the exact location information as soon as possible. There was a problem that there were times when it was not possible.

  Therefore, it is conceivable to use the above-described satellite system in the portable wireless telephone device in order to detect its own positional information.

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

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

  In order to use the satellite system, it is preferable to include a receiving unit that receives a radio wave output from the satellite system, and a detecting unit that detects position information indicating the absolute azimuth of the current position based on the received radio wave. Just fine.

  That is, according to the present invention, the receiving unit and the detecting unit are added to the conventional portable wireless telephone device, and the transmitting / receiving unit of the portable wireless telephone device can transmit the detected position information. Like that.

  Further, a display means for displaying the content indicating the position information is added, so that the position information of the portable radio telephone device can be displayed. Or, it may be possible to display the position information obtained.

  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 detection means calculates the distance to each satellite that is the 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 that is receiving. 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 position information to the other party.

  Further, the display means displays the content indicating the detected position information. As a display method, for example, a message indicating latitude and longitude is displayed, or a message specifically indicating position information such as “around the 〇〇 station” based on a table stored in advance, for example. Or to display. 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 wireless telephone device, and the difference between the frequency of talking and the frequency of displaying location information, the display means (or the 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 the own position information.

  As described above, the portable radiotelephone device of the present invention has an effect that it can detect position information indicating the absolute azimuth of the current location, and can transmit and display the detected position information.

  Therefore, for example, even if one or both are in a geographically unfamiliar situation, the location information can be notified accurately and promptly, especially in an emergency such as when an accident occurs. However, the utility value is high, for example, the location information of the site can be notified accurately and quickly.

  Hereinafter, embodiments of the present invention will be described 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 and receiving antenna, 6 is a key button, 10 is a main body function unit, and 11 is a transmitting and 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 drive circuit, 30 is a position detection unit, 31 is a satellite reception antenna, 32 is a reception circuit, 33 is An arithmetic processing circuit.

  The portable wireless telephone main body 1 is, roughly speaking, a main body function unit 10, an image display unit 20, and a position detection unit 30 mechanically integrated and electrically connected. .

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

  The position detecting unit 30 includes a 1.5 GHz band satellite receiving antenna 31, a receiving circuit 32, and an arithmetic processing circuit 33. 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. Is detected and 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 video display unit 20 includes a liquid crystal display 2 and a drive circuit 21. 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.

  As a result, map information in which a portion corresponding to the position information is marked is displayed on the liquid crystal display 2. Therefore, the user of the portable wireless telephone device can recognize the current location.

  The control of the position detection unit 30 may be performed by the main body function unit 10 or may be performed based on a control signal or the like 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 to the call partner from the call transmission / reception antenna 5. .

  Also, in the main body function unit 10, if 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 transmits the position information in the same manner as described above. The information is image-processed 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, when both parties have the portable wireless telephone device of the present embodiment, it becomes possible to transmit and receive location information. 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 a situation where the geography is unknown. it can.

  In the present embodiment, the position information is displayed together with the map information as a display method. Instead of the map data memory 14, some position information and corresponding geographic information are stored. A geographical data memory is provided, and the location information closest to the detected location information is searched, and the geographic information corresponding to the searched location information is, for example, “Around the 〇〇 Station”, “XX Park”. A message such as "around" may be displayed. 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 radio telephone device of the present embodiment is the same as the configuration of the portable radio telephone device of the first embodiment, except that the map data memory 14 is unnecessary and the liquid crystal display 2 is provided. It does not have to be provided.

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

  In this embodiment, the memory device 42 and the large-sized display device 40 can be connected separately. However, the memory device 42 and the large-sized display device 40 may be connected to an integrated device.

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

  The configuration of the portable radio telephone device of the present embodiment is the same as the configuration of the portable radio telephone device of the first embodiment, except that the satellite reception antenna 31 and the call transmission / reception antenna 5 are replaced by satellite reception. -It is provided with only the communication antenna 34 (for example, a helical antenna).

  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 wireless telephone is also assigned to the 1.5 GHZ band. By using it, 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. Is also good. 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.

FIG. 1 is a perspective view of a portable wireless telephone device according to a first embodiment of the present invention. FIG. 1 is a functional block diagram of a portable wireless telephone device according to a first embodiment of the present invention. FIG. 5 is a perspective view of a portable wireless telephone device according to a second embodiment of the present invention. FIG. 9 is a perspective view of a portable wireless telephone device according to a third embodiment of the present invention. FIG. 9 is a perspective view of a conventional portable wireless telephone device.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 ... Portable radio telephone main body, 2 ... Liquid crystal display, 3 ... Receiver, 4 ... Microphone, 5 ... Call transmission / reception antenna, 6 ... Key button, 10 ... Body function part, 11 ... Transmission / reception circuit, 12 ... Main control circuit, 13 image control circuit, 14 map data memory, 20 image display unit, 21 drive circuit, 30 position detection unit, 31 satellite reception antenna, 32 reception circuit, 33 arithmetic processing circuit, 34 satellite reception A shared antenna for transmitting and receiving calls, 40: large display device, 41: dedicated cable, 42: memory device.

Claims (6)

In a portable wireless telephone device having 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,
Receiving means for receiving radio waves output from three or more satellites, and detecting means for detecting position information indicating the absolute azimuth of the current location based on the received radio waves;
The portable wireless telephone device, wherein the transmitting / receiving means transmits / receives the position information via radio in addition to voice information and data information. The portable wireless telephone device according to claim 1,
A portable wireless telephone device comprising a display unit for displaying the content indicating the position information. The portable wireless telephone device according to claim 2,
A storage unit that stores a plurality of absolute directions and geographic information corresponding to the absolute directions,
The portable wireless telephone device, wherein the display means displays geographic information corresponding to the position information. The portable wireless telephone device according to claim 2,
A storage unit for storing map information,
The portable wireless telephone device, wherein the display means displays the map information and contents indicating a portion corresponding to the position information in the map information. The portable wireless telephone device according to claim 1,
An external storage device that stores map information; and a connection unit that connects to an external display device that displays the map information and contents indicating a portion corresponding to the position information in the map information. A portable wireless telephone device characterized by the above-mentioned. The portable wireless telephone device according to claim 1, 2, 3, 4, or 5,
A portable wireless telephone device, wherein the transmitting and receiving means and the receiving means share the same antenna.

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