JPH09130860A - Personal handyphone system set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically operate a handyphone set as a pocket pager and to extend a service area and utilizing time when the signal reception intensity from a base station is weak by performing the composite incorporation of a pocket pager function into a PHS. SOLUTION: The radio wave from a base station is received by an antenna 1 and is inputted in a first reception part 6 via a first switching device 4. The radio wave is outputted as sound from a speaker part 13 via a control part 8 including a signal processing 8. At the same time, a reception signal is detected by the electric field detector 6a of the first reception part 6 and this reception intensity level is displayed on a display part 10 via the control part 8. If this reception intensity is judged to be a stipulated value or more by the control part 8, the first switching device 4 holds the side of the first reception part 6 and continues its operation as a PHS function. If the reception intensity is the stipulated value or below, the control part 8 automatically switches the first switching device 4 to the side of a second reception part 7. Namely, the reception of pocket pager radio becomes possible to be received. At the same time, the character showing that a pocket pager is received is displayed on a display part 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple mobile phone (hereinafter abbreviated as PHS), and more particularly to a PHS that allows a service area and a usage time to be expanded by combining a pager function with the PHS.

[0002]

2. Description of the Related Art In recent years, there have been portable mobile radio devices such as mobile phones, cordless phones and pagers that utilize mobile radio as information transmission means, and PHS operation services have been started. These portable mobile radio devices are required to have a convenience that allows them to talk with anyone anytime, anywhere, and are rapidly advancing and becoming widespread to be small and lightweight.

The PHS for which the operation service has been started has a small transmission output and a service area of about 100 meters centering on the base station. Moreover, since the base station is currently limited to urban areas, it is used. The range that can be done is limited. Even if the PHS is not transmitting, as long as it is switched on, the PHS receives the identification signal from the base station at regular intervals. It is determined whether it is within the area.

[0004]

However, the portable mobile radio equipment as described above has characteristics peculiar to the equipment such as output, and in the current situation, the PHS has a small number of base stations and a narrow service area. There is a problem that the range of use of the transmission range is limited. Therefore, the present invention has been proposed in view of the above problems, and an object of the present invention is to provide means for incorporating a pager function into a PHS in a composite manner, thereby enabling expansion of a service area and a use time. To provide.

[0005]

According to the present invention, there is provided a first receiving section having a transmitting section for transmitting data via a transmission / reception switch and an electric field detector for recognizing a reception intensity of a radio wave emitted from a base station. A memory section that stores pager call information, a display section that displays reception strength and call information, a keyboard section that specifies the start and end of a call and a telephone number, a microphone section that inputs transmission information, and receive information. PH having a speaker unit for outputting and a control unit having a signal processing unit
A SHS is provided, which is provided with a second receiver that receives a pager radio via a first switch provided between the transmission / reception switch and the first receiver, and that operates as a pager.

Also, the radio wave emitted from the base station is received by the first receiving section, and only when the reception intensity detected by the electric field detector is less than the specified value, the second switching is automatically performed by the first switching unit. PH that switches to the section and operates as a pager
Provide S.

A second switching device is provided between the antenna and the transmission / reception switching device, and the second switching device is operated by the manual type second switching device switching switch.
When the switching device is switched to the transmission / reception switching device side, the radio wave emitted from the base station is received by the first receiving unit, and the first switching device automatically operates only when the reception intensity is less than the specified value. It operates as a pager by switching to the second receiving unit, and the second switching device is switched to the second switching device by the manual second switching device switching switch.
It provides a PHS with a semi-automated function that operates as a pager when switched to the receiver.

Further, there is provided a PHS in which the PHS function side on the transmission / reception switch side and the pager function side on the second receiving section side are independent from each other via the manual second switch provided on the antenna side.

Further, there is provided a simplified PHS in which the power of the PHS is shut off while the pager function side is operating.

[0010]

Embodiments of the present invention will be described with reference to the drawings. 1 to 3 show P according to the present invention.
It is a schematic block diagram of Example 1-3 of HS. 1 to 3, 1 is an antenna, 2 is a transmission / reception switch,
3 is a transmitter, 4 is a first switch, 5 is a second switch, 6 is a first receiver, 6a is an electric field detector, 7 is a second receiver, 8 is a controller, 8a is a signal processor, Reference numeral 9 is a memory unit, 10 is a display unit, 11 is a keyboard unit, 12 is a microphone unit, 13 is a speaker unit, and 14 is a second switch switching SW.

A first embodiment according to the present invention will be described.
FIG. 1 is a schematic block diagram of a PHS according to the first embodiment of the present invention. First, the schematic block diagram of FIG. 1 will be described. The antenna 1 is connected to the transmitter 3 and the first switch 4 via the transmission / reception switch 2, and the first switch 4 is connected to the first receiver 6 and the second receiver 7 having the electric field detector 6a. These are connected to the control unit 8 that controls the system including the signal processing unit 8a. Further, the control unit 8 is connected to the memory unit 9, the display unit 10, the keyboard unit 11, the microphone unit 12, the speaker unit 13, and the second switching unit switching SW 14.

Next, the operation will be described. When the PHS in the receiving state receives the radio wave emitted from the base station by the antenna 1, this received signal is input to the first receiving unit 6 via the first switch 4 and the control including the signal processing unit 8a is performed. Part 8
Is output from the speaker unit 13 as sound via the. At the same time, the received signal is detected by the electric field detector 6a of the first receiving unit 6 and recognized as the received intensity, and the received intensity level is displayed on the display unit 10 via the control unit 8.

Further, the reception intensity is compared with a preset specified value and judged by the control unit 8. If the reception intensity is equal to or larger than the specified value, the first switching unit 4
Keeps the first receiving unit 6 side and continues to operate as the original PHS function.

On the contrary, if the reception intensity is less than the specified value, the control unit 8 treats it as outside the PHS service area,
The first switch 4 is automatically switched to the second receiver 7 side by the control signal. That is, it operates as a pager function on the side of the second reception unit 7 and enables reception of pager radio. At the same time, the display unit 10 displays characters such as "out of PHS service area" or "pager receiving".

Originally, even if the PHS is not transmitting, as long as the power is turned on, the PHS constantly receives the identification signal and the radio wave emitted from the base station at regular intervals and constantly recognizes the reception intensity. ing. The main point of the present invention is to recognize the reception intensity of the identification signal or the radio wave emitted from the base station detected by the electric field detector 6a of the first receiving unit 6, and to make a comparison judgment of this reception intensity with a specified value, and the control unit. By selectively operating the first switching device 4 with a control signal from 8, it is possible to automatically select the PHS function which is the normal mode and the pager function that is added separately, and it is possible to expand the service area and the usage time. Is.

Therefore, when the base station is distant, the reception strength is naturally less than the specified value, and the pager function side is automatically selected. That is, if the current location is within the service area, normal PHS capable of transmission and reception
Mode, and if it is outside the service area, it becomes a reception-only pager mode. In this case, the power supply on the PHS side is shut off under the control of the control unit 8 to suppress wasteful consumption of the built-in battery. The information obtained in the pager mode is stored in the memory unit 9 and displayed on the display unit 10. Further, it is possible to call and redial the telephone number of the other party stored in the memory unit 9.

The second embodiment will be described. FIG.
FIG. 7 is a schematic block diagram of a second embodiment of PHS according to claim 3 of the present application. As shown in FIG. 2, it is based on the basic block diagram of FIG. 1 described above. Therefore, only changed portions will be described, and description of common portions will be omitted.

The main points of the second embodiment are as shown in FIG.
That is, a manual second switch 5 is provided on the antenna 1 side. In the current environment in which the PHS is installed, the number of base stations is small and the service area is limited to urban areas. Therefore, the second switch 5 can be operated by the manual second switch selector SW14 in advance.
It is decided to manually select either the PHS function or the pager function.

If the second switch 5 is set to the transmission / reception switch 2 side by the second switch SW and the PHS function in the normal mode is selected, as described in the first embodiment, the identification transmitted from the base station is identified. The electric field detector 6a of the first receiver 6 receives signals and radio waves.
The PHS function, which is the normal mode, and the added pager function are automatically selected depending on the strength of the reception intensity detected in step 3. Since the subsequent operation is the same as that of the first embodiment,
The description here is omitted.

On the other hand, the second switch SW14 switches the second switch.
When the switcher 5 is set to the second receiving section 7 side and the pager function side is selected, the operation of the PHS function is completely stopped.
For example, the power supply is cut off to suppress the consumption of the built-in battery and to extend the life of the battery, as in the first embodiment.

Further, a third embodiment will be described. FIG.
[Fig. 6] is a schematic block diagram of Embodiment 3 of PHS according to claim 4 of the present application. As shown in FIG. 3, it is based on the basic block diagram of FIG. 1 described above. Therefore, only changed portions will be described, and description of common portions will be omitted. The main point of the third embodiment is, as shown in FIG. 3, a pocket on the PHS function side on the transmission / reception switch 2 side and the pocket on the second receiver 7 side via the manual second switch 5 provided on the antenna 1 side. It is that the bell function side is independent.

The manual second switch changeover switch 14 is operated in advance to manually select either the PHS function or the pager function by the second switch 5. For example, if the second switching unit 5 is set to the transmission / reception switching unit 2 side by the second switching unit switching SW 14 and the PHS function in the normal mode is selected, the identification signal and the radio wave emitted from the base station are transmitted to the first receiving unit 6. When the reception intensity detected by the electric field detector 6a is less than or equal to the specified value, the display section 10 simply displays the out-of-service area, and the user can see the display and use the second switching unit switching switch 14 to switch the second switching unit 5 To switch the pager manually and select the pager function. That is, the present invention focuses on cost reduction.

[0023]

In the current environment of PHS, the number of base stations installed is small and the service area is narrow, that is, the utilization range of the information transmission range is limited. As described above, the PH of the present invention
According to S, since the PHS has a built-in pager function in combination, it automatically operates as a pager when the reception strength from the base station is weak, thus enabling expansion of the service area and usage time. PHS can be provided. Further, the PHS of the present invention shuts off the power of the PHS at the time of pager reception, and especially when it is clear that the PHS and pager functions are both provided with a manual transmission / reception switch, and the PHS is out of the service area. The manual switch to the pager side reduces unnecessary power consumption and extends the life of the built-in battery.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of a first embodiment of PHS according to the present invention.

FIG. 2 is a schematic block diagram of a second embodiment of PHS according to the present invention.

FIG. 3 is a schematic block diagram of Embodiment 3 of PHS according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 antenna 2 transmission / reception switching device 3 transmission unit 4 first switching device 5 second switching device 6 first receiving unit 6a electric field detector 7 second receiving unit 8 control unit 8a signal processing unit 9 memory unit 10 display unit 11 keyboard unit 12 Microphone section 13 Speaker section 14 Second switch switch SW

Claims (5)

[Claims] 1. A transmission section for transmitting data via a transmission / reception switch, a first reception section having an electric field detector for recognizing the reception intensity of radio waves emitted from a base station, and pager call information. A memory unit, a display unit for displaying the reception strength and the call information, a keyboard unit for designating the start and end of a call and a telephone number, a microphone unit for inputting transmission information, and a speaker unit for outputting reception information, A pocket-type mobile phone having a control unit including a signal processing unit, which receives a pager radio via a first switch provided between the transmission / reception switch and the first receiver. A simple mobile phone comprising a second receiving section that operates as a bell. 2. The radio wave emitted from the base station is transmitted by the first radio wave.
Only when the reception intensity received by the receiving unit and detected by the electric field detector is less than or equal to a specified value, the first switching device
2. The simplified mobile phone according to claim 1, wherein the mobile phone automatically switches to the second receiver and operates as a pager. 3. A second device between an antenna and the transmission / reception switch.
When a switching device is provided and the second switching device is switched to the transmission / reception switching device side by the manual second switching device switching switch, the radio wave emitted from the base station is received by the first receiving unit and this reception is performed. Only when the intensity is less than or equal to a specified value, the first switching unit automatically switches to the second receiving unit and operates as a pager, and the manual second switching unit switching SW
3. The simplified mobile phone according to claim 2, further comprising a semi-automated function that operates as a pager when the second switch is switched to the second receiving section by. 4. The simplified portable telephone function side on the transmission / reception switch side and the pager function side on the second reception section side are independent from each other via a manual type second switch provided on the antenna side. The simplified mobile phone according to claim 1. 5. The simplified mobile phone according to claim 1, wherein the simplified mobile phone is powered off while the pager function side is operating.