JP2005094236A - Multiple-line accommodated portable telephone terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable telephone terminal which can accommodate a plurality of telephone lines of the same call transformation system without changing the call system of a telephone company. <P>SOLUTION: The portable telephone terminal includes a basic circuit which is connected to a transmitter, a receiver, a microphone, a speaker, and a key input unit and which realizes a telephone function; and a plurality of memory units one of which is assigned to each telephone line to be made of a contract, and one of which holds one ID number related with the telephone line to be made of the contract. The plurality of a multiple-line accommodated portable telephone terminal can select the telephone line used by connecting a desired one basic circuit of the plurality of the memory units at a transmitting time, and transmits all the ID numbers toward an exterior by sequentially automatically switching the memory units communicating with the basic circuit at an awaiting time and can, therefore, respond to a call request to a plurality of the telephone lines. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a mobile phone terminal. More specifically, the present invention relates to a mobile phone terminal that can use a plurality of telephone lines.

  Conventionally, there is only one telephone line that can be contracted with one mobile phone terminal, and therefore only one telephone number can be used.

  Here, the mechanism by which a conventional mobile phone terminal establishes a call via a contracted telephone company will be described in detail with reference to FIG. 4. The conventional mobile phone terminal 1 is a unique one associated with a telephone number. The ID number is frequently sent to the outside to notify the ID number when in the standby state. This radio wave is received by the base station a nearest to the telephone company, and the base station a notifies the central control station 2 of the telephone company that the mobile phone terminal 1 is in its own area. The central control station 2 that has received the communication records this ID number and base station information in the location registration database 3.

  Since the mobile phone terminal 1 frequently transmits the ID number to the outside, even if the mobile phone terminal 1 moves from the area of the base station a to the area of the base station b, the ID number is immediately Received by station b and communicated to central control station 2. The central control station 2 that has received the notification rewrites the information in the location registration database 3 regarding this ID number. In this way, the telephone company always knows the location information of the mobile phone terminal 1.

  Therefore, when the mobile phone terminal 1 receives a call from, for example, the general public line 4, the central control station 2 accesses the location registration database 3, and the ID number associated with the telephone number that received the call and its location Search for. Then, a line is connected to a base station in which the mobile phone terminal 1 exists, and a call is established by calling the mobile phone terminal 1 through the base station.

  On the other hand, when making a call from the mobile phone terminal 1, connect to the nearest base station and allocate a free channel to its own ID number, thereby passing through the central control station 2 to the general public line 4, for example. Establish a call.

  Corresponding to this mechanism, as schematically shown in FIG. 5, the basic structure of the conventional mobile phone terminal 1 includes a receiver 12 and a transmitter 13 that receive and transmit radio waves through an antenna 11, and outputs voice and A speaker 14 and a microphone 15 for inputting, a keyboard 16 for operating the mobile phone terminal 1, a display 17 for displaying information, and a telephone function are realized by being connected to these and controlling operations. A basic circuit (baseband) 18 is included.

  A memory unit 19 is further connected to the basic circuit 18, and the ID number of the mobile phone terminal 1 is recorded in the memory unit 19. However, the memory unit 19 can also be used to store other information, for example as a phone book. The basic circuit 18 also controls each component so that the ID number recorded in the memory unit 19 is transmitted as a radio wave and notified to the outside during standby.

  According to the above-described call system and terminal configuration, the conventional mobile phone terminal can use only one contracted telephone line. Therefore, when a user wants to use a plurality of telephone numbers or telephone lines, for example, public / In order to distinguish between two private phone numbers for private use, it was necessary to carry a plurality of mobile phone terminals. Specifically, for example, even if a corporate employee is given a mobile phone terminal in the business name, the purpose of use is mostly limited to the business. In order to use a terminal, it was necessary to carry two terminals. Carrying two mobile phone terminals was very bulky and prone to confusion and was totally unreasonable.

  On the other hand, there have been mobile phone terminals (for example, PDC method and PHS method, PDC method and CDMA method) that can use two telephone lines with different call conversion methods. In cases, the call conversion methods that both corporate users and employees would like to use are usually converged to the most widely used call conversion methods, that is, the same call conversion methods. Therefore, the conventional “hybrid” type multi-line accommodation mobile phone terminal cannot satisfy the user's request.

  In order to use a conventional hybrid type mobile phone terminal, a specific contract prepared for “hybrid” is concluded with a telephone company, or a plurality of contracts are simultaneously concluded under the same name. This is inconvenient for the purpose of the user using a plurality of telephone lines for public and private use. In addition, a hybrid mobile phone terminal is likely to be relatively large as a device, for example, requiring a transmitter or a receiver that can support different call conversion methods, and the manufacturing cost accordingly increases.

  Therefore, an object of the present invention is to allow a single phone to use a plurality of telephone lines without constructing a special contract plan or call system in a mobile phone terminal that supports a single call conversion method. Therefore, it is an object of the present invention to provide a small and inexpensive multi-line accommodating mobile phone terminal that allows a user to use a plurality of telephone numbers (telephone lines) properly.

  In order to achieve this object, a multi-line-accommodating mobile phone terminal according to the present invention includes a receiving / transmitting means for transmitting and receiving radio waves via an antenna, a microphone and a speaker for inputting and outputting sound, and an operation signal. A key input unit for inputting, a basic circuit that realizes a telephone function by being connected to a transmission / reception means, a microphone, a speaker, and a key input unit, and a plurality of ones assigned to each telephone line contracted And a plurality of memory units each configured to hold one ID number associated with a contracted telephone line. This multi-line-accommodating mobile phone terminal can be operated using a key input means so that only one desired one of a plurality of memory units is connected to the basic circuit at the time of outgoing call. A line can be selected. At the time of standby, a plurality of memory units are automatically switched so as to be sequentially connected to the basic circuit one by one, so that all ID numbers are transmitted to the outside. ) Can be answered.

  The multi-line-accommodating mobile phone terminal of the present invention is a switching device (for example, a CPU) disposed between a basic circuit and a plurality of memory units for automatically switching a memory unit connected to the basic circuit during standby. May further be included. Since the switching device performs connection and switching of the memory unit with respect to the basic circuit, each of the other components including the basic circuit (for example, antenna, transmission / reception means, memory unit, etc.) is completely that of a conventional mobile phone terminal. Can be used. That is, the new parts required for the multi-line-accommodating mobile phone terminal of the present invention are minimized, which contributes to the miniaturization of the terminal and the reduction of the manufacturing cost.

  Since the present invention does not require any change to the telephone company's telephone equipment or telephone system, it is possible to contract a plurality of telephone lines completely separately only by adopting the multi-line accommodating mobile phone terminal of the present invention on the user side. This can improve user convenience.

  According to the present invention, the plurality of memory units may be adapted to accommodate their own telephone number and telephone book associated with the assigned telephone line. As a result, the basic circuit is connected to a related telephone directory according to the telephone line to be used, and for example, it is possible to make public / private use more convenient.

  According to the invention, the multi-line-accommodating mobile phone terminal may have a display device connected to the basic circuit. The display device not only improves the operability of the key input unit, but also displays the phone book recorded in the memory unit, or when a call request is made, to any one of a plurality of phone lines. It is also possible to display whether a call request has been made.

  The key input unit may include a plurality of call buttons assigned to each telephone line contracted. Each of these call buttons is associated with a plurality of memory units, and when a call is made, one of the call buttons can be pressed to select a telephone line and a memory unit to be used in advance. You can also press the call button to select. This configuration facilitates the user to select one of a plurality of telephone lines and contributes to preventing selection mistakes. However, it should be noted that the telephone line can be selected by other means, for example, from a menu screen or by operating a dial key.

  The above-described object and other objects, features, and advantages of the present invention will be readily apparent from the following description of the best mode for carrying out the invention with reference to the accompanying drawings.

  It should be noted that in FIGS. 1 to 3, the same configurations as those in FIGS. 4 and 5 are indicated by the same reference numerals.

  FIG. 1 schematically shows a basic structure of a mobile phone terminal 30 that accommodates two telephone lines, which is one embodiment of a multi-line accommodated mobile phone terminal according to the present invention. The cellular phone terminal 30 is a receiving / transmitting means comprising a receiver 12 and a transmitter 13, and has a receiving / transmitting means for transmitting and receiving radio waves via the antenna 11. Only the PDC (Personal Digital Cellular) method is supported. However, it should be noted that this transmission / reception means only needs to be compatible with a specific call conversion system, and may be compatible only with, for example, a CDMA (Code Division Multiple Access) system. The mobile phone terminal 30 also includes a speaker 14 for outputting sound, a microphone 15 for inputting sound, a keyboard 16 for inputting a telephone number and various operation commands, input contents of the keyboard, status of the mobile phone, and the like. And a display 17 for displaying, and the above-mentioned receiving / transmitting means, speaker 14, microphone 15, keyboard 16, and basic circuit (baseband) 18 connected to the display 17 control these to realize a telephone function. .

  The two-line accommodating mobile phone terminal 30 has a memory unit 19a for the line A and a memory unit 19b for the line B, which are the same as the conventional memory unit 19 (FIG. 5). Each memory unit accommodates its own telephone number and ID number relating to the assigned telephone line, and also functions as a telephone directory used by the user in relation to the telephone line. A memory switching CPU 40 is disposed between the memory units 19 a and 19 b and the basic circuit 18, and only one of the memory units is always connected to the basic circuit 18. Here, when the memory unit 19a for the line A is connected, a mobile phone terminal that can use the line A is configured, and when the memory unit 19b for the line B is connected, the line B is used. Note that a mobile phone terminal that can be configured is configured.

  More specifically, when the terminal 30 is in a standby state (non-calling state), the memory switching CPU 40 automatically switches the memory unit connected to the basic circuit 18 at a predetermined cycle. However, it should be noted that the memory switching CPU 40 may switch the memory unit connected to the basic circuit 18 irregularly or in response to a predetermined trigger instead of a predetermined cycle. As a result, as shown in FIG. 3, the two-line-accommodating mobile phone terminal 30 transmits both the ID number A and the ID number B recorded in the memory units 19a and 19b to the nearest base station a, and thus the center. The control station 2 records position data indicating that both the ID number A and the ID number B are in the area of the base station a. Therefore, regardless of whether the telephone number of the line A or the telephone number of the line B is received via the general public line 4, the central control station 2 accesses the location registration database 3 to obtain the ID number. The terminal 30 can be detected in the area of the base station a, connected to the base station a, and the terminal 30 can be called through the line.

  The appearance of one embodiment of the two-line accommodating mobile phone terminal 30 of the present invention is shown in FIG. The keyboard 16 includes call buttons 16a and 16b, and the call buttons 16a and 16b are associated with the two telephone lines A and B, respectively. Therefore, when a call related to the line A is received, the memory switching CPU 40 connects the basic circuit 18 to the line A memory 19a by pressing the call button 16a, and configures a terminal corresponding to the line A to make a call. to enable. Similarly, when a call related to the line B is received, the memory switching CPU 40 connects the basic circuit 18 to the line B memory 19b by pressing the call button 16b to constitute a terminal corresponding to the line B, Enable calls.

  On the other hand, when making a call, either one of the call buttons 16a and 16b is pressed and the memory switching CPU 40 instructs to connect either the line A memory 19a or the line B memory 19b to the basic circuit 18 in advance. You can select the phone line you want to use. Therefore, the user can make a call using the telephone directory stored in the memory unit associated with each telephone line.

  According to another embodiment of the present invention, the telephone line can be selected from a dial switch or a menu screen displayed on the display 17 instead of the call buttons 16a and 16b. Please note that. The selection, switching, or control of the memory unit connected to the basic circuit 18 is not necessarily performed by the memory switching CPU 40, and may be switched by, for example, another mechanical switching machine, or the basic circuit 18 The device itself may select or switch the memory unit to be connected.

  According to the present invention, the user does not need to carry a plurality of mobile phone terminals even when using a plurality of telephone lines. As a result, the number of mobile phone terminals purchased by users (for example, corporate users and employees) can be reduced, which saves waste and contributes to energy saving in a broad sense.

  The multi-line-accommodating portable terminal according to the present invention has a function corresponding to a plurality of terminals as a terminal, and can be manufactured from one main part, so that an increase in manufacturing cost can be suppressed.

  Further, the user can use a plurality of telephone lines without changing the management system of the central control station of the telephone company only by adopting the multi-line accommodating mobile telephone terminal according to the present invention. Therefore, these telephone lines can be made into completely independent and separate contracts, and since charges and charges are charged for each line, it is possible to make public and private use more complete.

  Although one embodiment of the present invention has been described above, the above embodiment is not intended to describe all possible forms of the present invention, and the terms used in this specification are not It should be understood that the invention is intended to be illustrative and not limiting and that various changes can be made without departing from the spirit and scope of the invention.

The schematic diagram showing the structure of the two-line accommodation portable telephone terminal by one Embodiment of this invention. FIG. 2 is an external view of the mobile phone terminal shown in FIG. 1. The figure explaining the mechanism by which the telephone call of FIG. 1 is established. The figure explaining the mechanism in which a telephone call is established in the conventional mobile telephone terminal. The schematic diagram showing the structure of the conventional mobile telephone terminal.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conventional mobile telephone terminal 2 Central control station 3 Location registration database 4 General public line 11 Antenna 12 Receiver 13 Transmitter 14 Speaker 15 Microphone 16 Keyboard 16a Line A call button 16b Line B call button 17 Display 18 Basic circuit DESCRIPTION OF SYMBOLS 19 Memory part 19a Memory part for line A 19b Memory part for line B 30 2 line accommodation mobile telephone terminal

Claims (7)

Receiving and transmitting means for transmitting and receiving radio waves via an antenna;
A microphone and speaker for inputting and outputting audio;
A key input unit for inputting operation signals;
A basic circuit connected to and controlled by the transmission / reception means, the microphone, the speaker, and the key input unit to realize a telephone function;
A plurality of lines each having a plurality of memory units allocated to each contracted telephone line, each of which stores a single ID number associated with the contracted telephone line A mobile phone terminal,
At the time of outgoing call, a telephone line to be used can be selected by operating using the key input means so that only a desired one of the plurality of memory units communicates with the basic circuit,
At the time of standby, the plurality of memory units are automatically switched to communicate with the basic circuit one by one, and the basic circuit uses the ID number held in each of the communicating memory units as an external A multi-line-accommodating mobile phone terminal that is capable of responding to a call request for a plurality of telephone lines by making an outgoing call to the outside and thereby informing the outside of the location of the mobile phone terminal.   The switching device further includes a switching device arranged between the basic circuit and the plurality of memory units, and the switching device automatically switches the memory unit communicating with the basic circuit during standby. The multi-line accommodation mobile phone terminal according to claim 1.   3. The multi-line accommodating mobile phone terminal according to claim 1, wherein only a telephone line based on a single call conversion method can be accommodated.   The display device further includes a display device connected to the basic circuit, and the display device displays, when there is a call request, which phone line of the plurality of phone lines has been called. The multi-line accommodation mobile phone terminal according to any one of claims 1 to 3.   5. The memory unit according to claim 1, wherein each of the memory units stores a self telephone number relating to an assigned telephone line and a telephone book for the assigned telephone line. 6. Multi-line mobile phone terminal.   The key input unit includes a plurality of call buttons assigned to each contracted telephone line, each of which includes a plurality of call buttons respectively associated with a corresponding memory unit of the plurality of memory units. By pressing the call button, a telephone line and a memory unit to be used can be selected in advance, and when a call is received, a call is established by pressing the call button associated with the telephone line requested to be called. The multi-line accommodation mobile phone terminal according to any one of claims 1 to 5. The multi-line accommodating mobile phone terminal according to any one of claims 1 to 6, wherein the plurality of memory units are two memory units, and therefore can accommodate two telephone lines. .