JPH0645992A - Portable information terminal - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Bi-directional Allows the mobile information terminal to operate independently as a receiver or transmitter. [Structure] The receiving unit 1 and the transmitting unit 2 of the bidirectional portable information terminal are physically separated, and after separation, each has a function of operating independently.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention enables a further information terminal to be connected to an electromagnetic wave information transmitting section which functions independently of the receiving section of the information modulated into the electromagnetic wave signal which functions independently and the receiving section. Thus, the present invention relates to a portable information terminal such as a multifunctional mobile phone that can be transformed into another information terminal having a different purpose.

[0002]

2. Description of the Related Art Conventionally, a portable information terminal device such as a mobile phone has a circuit configuration in which transmission and reception are integrated because it is intended for bidirectional transmission and reception of information. In this case, the weight of a portable wireless terminal such as a mobile phone is generally dominated by a battery, and most of the weight is determined by the power consumption of the transmission side because the transmission circuit consumes the battery.
Therefore, in particular, the weight of the large capacity battery is heavy, and it is also a factor of increasing the overall shape. At this time, in the case of an application in which only the reception function or the transmission function is required to be operated independently, the conventional circuit configuration is mixed and integrated, which is inconvenient in terms of battery life and portability. For example, even if the pager is used only for a certain purpose, there is a function that is not used half, that is, there is an inconvenience of having to carry it as a unit despite having a transmitting function.

Incidentally, the ones related to this type of device are:
JP-A-2-288623, JP-A-3-145343, JP-A-3-1545
No. 31 publication is cited.

[0004]

As described above, in the case of a mobile phone in which a receiver and a transmitter are integrated, the circuit configurations of the receiving function and the transmitting function are mixed and integrated.
It is not possible to use only the receiving function, for example, the pager function only, or the transmitting function, for example, only a single function such as the data transfer function. However, when only the reception function is used, the transmission function which usually consumes a lot of battery is not required, and therefore the battery capacity and its size can be smaller than those including the transmission function. Also,
If you want to transfer data without the need for a call function, you can use the transmission function that is built into your mobile phone in advance, and if you can attach the data generation unit to the transmission unit instead of the call reception unit, it will immediately function as a data transfer terminal. To do.

An object of the present invention is to physically separate the functions of the receiving unit and the transmitting unit as individual units so that the respective functions can operate independently, and by combining them, for example, an IC memory card and a transmitting unit. It is to improve the usability by transforming into a multifunctional terminal such as a department.

[0006]

In order to solve the above problems, the present invention has a structure in which a receiver and a transmitter of a mobile information terminal such as a mobile phone can be physically separated. The electric signal connection between the receiving unit and the transmitting unit is performed by an optical connector by contactless electric signal connection or by connecting a contact type connector.

When the receiving part and the transmitting part are separated,
Each has a function that can operate independently.

Further, the connection interface between the receiving unit and the transmitting unit has a common interface specification so that it can be connected to another information terminal such as an IC card.

[0009]

With the configuration as described above, for example, only the receiving section is used so that the pager can be used. In addition, if the connection interface between the receiving unit and the transmitting unit is generalized, the information stored in the IC memory card can be transferred to the electromagnetic wave by connecting the IC memory card in which data is input in advance and the common interface is connected to the transmitting unit. It is possible to transfer information data to a remote place by using a signal modulated into. Further, if the connection interface is common, it can be transformed into various multifunctional terminals by changing the connection of another card suitable for the interface.

Further, since the receiving part and the transmitting part can be separated, when only one side communication function is used, only one of them has to be carried, which is convenient.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view of a portable information terminal embodying the present invention, and FIG. 2 is an external view of a portable information terminal embodying the present invention, in which a receiver and a transmitter are separated. Figure 3
FIG. 4 is a block diagram of each control of the receiver and transmitter of the portable information terminal embodying the present invention, and FIG. 4 is a perspective view of an embodiment in which the present invention is applied to an IC memory card.

The portable information terminals 1 and 2 shown in FIG. 1 are portable telephones composed of a receiver side 1, a transmitter side 2, numeral keys 3, a speaker 4 and a microphone 5.

FIG. 2 shows a diagram when the portable information terminal shown in FIG. 1 is separated into a receiving side 1 and a transmitting side 2. The electrical signal connection between the receiving unit side 1 and the transmitting unit side 2 is connected to the optical connector 6 in a non-contact manner by a light-modulated signal or in a contact manner by the connector. The storage rail 7 is provided on the receiving side 1 so that it can be easily carried when carried.
It is a rail for storing the transmitter side 2 inside.

The receiving unit side 1 shown in FIG. 3A is a non-contact type optical connector 11 for connecting to other information terminals such as the transmitting unit side 2, its light transmitting / receiving unit 12, and electromagnetic wave modulation. Signal receiving antenna 17, its radio wave reception control unit 16, the received signal through the optical connector 11 and the I / F circuit unit 13 externally or internally, a DA converter, an amplifier 1
4 comprises a speaker 15 for outputting as sound.

The transmitter section 2 shown in FIG. 3B is input through a non-contact type optical connector 21 for connecting to another information terminal such as the receiver section 1 and its optical transmission / reception section 22. Signal or microphone 25 to preamplifier 24
I / F circuit unit 2 that transmits to the radio wave transmission control unit 27 via
3. A transmitting antenna 26 for transmitting a signal as an electromagnetic wave signal to the outside.

FIG. 4 shows an example in which an IC memory card 30 is connected to the receiving side 1 in order to show an example of a portable multifunction terminal.

The operation procedure will be described with reference to FIGS. 1, 2, 3, and 4 by taking a portable telephone as an example of a portable information terminal.

Normally, when used as a telephone, the receiving section side 1 and the transmitting section side 2 have an integrated structure as shown in FIG. In this case, the receiver side 1 is the receiver side, and the transmitter side is configured using the transmitter side 2. The voice information from the communication partner modulated to the electromagnetic wave is demodulated by the radio wave reception control unit 16 via the reception antenna 17, is signal-amplified by the amplifier 14 through the reception unit side I / F circuit unit 13, and is output from the speaker 15 as voice. You can hear the message. On the other hand, when the message is to be transmitted to the other party, if the message is input to the microphone 25 as voice, the radio wave transmission control unit 27 transmits the voice signal via the preamplifier 24 and the transmission unit side I / F circuit unit 23. At 26, it is sent out as an electromagnetic wave signal.

Here, the receiving unit side 1 and the transmitting unit side 2 are completely independent in function, and the antenna and the battery have to be provided in their respective units, but on the contrary, because they are independent, Since the receiving unit side 1 and the transmitting unit side 2 operate independently, the receiving unit side 1 can be used independently as a voice pager, for example. In this case, since the transmitter side 2 that consumes a lot of battery is not needed, the receiver side 1 that requires a small amount of power may be a small capacity battery, and the size of the unit is
It can be small. Further, by making the connector sections 11 and 21 comply with a general-purpose interface standard, for example, the JEIDA standard, a commercially available IC memory card can be used on the transmitting section side 1.
It is also possible to send the information in the card as a radio wave by using the radio wave transmission function of the transmitter 1 side.

As described above, conventionally, a mobile information terminal such as a mobile phone capable of bidirectional information exchange has been configured by integrating a receiving unit and a transmitting unit, but the receiving unit and the transmitting unit are completely integrated. By separating the functions, it becomes easy to transform the functions for other purposes, and when used as a single function, the usability is improved by carrying only one of them.

[0021]

EFFECTS OF THE INVENTION According to the present invention, (1) by physically separating the wireless reception unit and the wireless transmission unit, each can function independently, and when used as a single function, they can be separated and carried. Can be done and the usability is improved, (2)
By connecting to the information receiving unit or the information transmitting unit, which is separately provided, with a general-purpose IC memory card or the like, it can be transformed into an information terminal that can be used for other purposes and can be made into a multi-functional terminal. (3) Receiving function, or When using only the transmission function, you can carry it separately and save battery power. For example, the transmitter consumes more battery than the receiver. Therefore, it is possible to obtain the effect that the saving becomes more remarkable than the use of only the receiving unit.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view in which a receiver and a transmitter are separated by implementing the present invention.

FIG. 3 is a block diagram of control of a receiver and a transmitter.

FIG. 4 is a perspective view showing an example in which an IC memory card is connected to a receiving unit.

[Explanation of symbols]

1 ... Receiving unit side, 2 ... Transmitting unit side, 3 ... Phone push key switch, 4 ... Voice output speaker, 5 ... Voice input microphone.

Claims (5)

[Claims] 1. In a portable terminal device having a bidirectional transmission / reception function of information modulated into an electromagnetic wave signal, an information receiving section that functions independently and an information receiving section that functions independently function independently. A portable information terminal comprising an information transmitting unit. 2. The optical signal connection for exchanging information between the information receiving section and the information transmitting section, which can be independently separated, when they are used integrally as a two-way transmission / reception terminal according to claim 1, are connected by an optical connector. Portable information terminal. 3. A portable information terminal according to claim 1, wherein when used as a two-way transmission / reception terminal integrally, a connector connection is made by contacting an electric signal connection for exchanging information between information reception and information transmission, which can be separated independently. . 4. The portable information terminal according to claim 1, wherein the information receiving section that functions independently has means for connecting an information terminal different from the information transmitting section. 5. The portable information terminal according to claim 1, wherein the independently functioning information transmitting section is provided with means for connecting an information terminal different from the information receiving section.