JP3183248B2 - Telephone equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a telephone device,
In particular, the present invention relates to a parent-child telephone device in which a card storing unique identification information is detachably attached to a telephone device main body and uses one radio or a telephone line with a plurality of handsets.

[0002]

2. Description of the Related Art In recent years, a card storing unique identification information has been made detachable from a telephone device main body, and telephone functions such as dialing can be used when identification information can be read from the attached card. Card-enabled telephone devices are being considered. In this card-compatible telephone device, a telephone number is read from a card, the telephone number is stored and registered in a memory in the telephone device, and the telephone number registered in the memory of the telephone device is used when making and receiving a call.

[0003] On the other hand, there is a parent-child telephone set in an ordinary telephone device, in which a plurality of handsets are connected to one radio or a telephone line, and a call can be made from any handset.

[0004]

By connecting a plurality of card-compatible telephone devices (card-compatible handsets) to one wireless device or telephone line as described above,
It is conceivable to construct a parent-child telephone using a card-compatible telephone device. Here, when the card is inserted into the first card-compatible handset of the plurality of card-compatible handsets, the telephone number in this card is stored and registered in the memory of the telephone device, and the radio sets this telephone number Make and receive calls. The card-compatible handset can use the telephone function such as dialing only when the card is inserted and the identification number can be read, but at this point other card-compatible handsets are in the state where the card is not installed , And cannot be used as a telephone.

On the other hand, if the user inserts a card in order to use a second card-compatible handset which is not mounted and cannot be used, the second card-compatible handset registers a telephone number in a memory in the telephone device. try to. However, since the telephone number of the card attached to the first card-compatible handset has already been registered and the operation has been established with this telephone number, it cannot be stored in the memory of the main unit. Therefore, the second handset becomes unavailable.

For example, it is conceivable to register the telephone number of the card attached to the second handset in the main unit, but since only one telephone number can be used with one radio, the card attached to the first handset can be used. There is a problem that needs to be solved in operation, such as whether to operate using the telephone number of the card or the telephone number of the card attached to the second handset.

Accordingly, an object of the present invention is to provide a telephone device which can constitute a parent-child telephone using a card-compatible handset.

[0008]

According to the first aspect of the present invention, there is provided a telephone apparatus provided with a handset to which a card can be attached and detached, and the operation of the handset can be read out of the card information by the switching means. It is possible to switch between the master unit state and the slave unit operating based on the identification information in the storage unit without reading the card information.

Therefore, when a plurality of handsets are connected,
If so, set that one handset as the parent device state,
By setting another handset as the handset status, the handset in the handset status can perform a calling / receiving operation based on the identification information read from the card mounted on the handset in the master status. The unique identification information includes a serial number and a telephone number. The serial number and the telephone number are used to perform normal telephone functions such as making and receiving calls from the handset set to either the base unit state or the handset state. Available.

[0010] The receiving / transmitting device may be configured as follows.
If constituted by a wireless device, it can be used as a mobile phone such as a car phone or a mobile phone.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram showing the configuration of an entire mobile telephone device according to an embodiment of the telephone device having a parent-child function of the present invention. As shown in FIG. 1, a car telephone apparatus according to the present embodiment includes a plurality of
1b, an automobile telephone radio (corresponding to a transmitter / receiver of the present invention; hereinafter, simply referred to as a radio) 3 for communicating with another telephone via the antenna 2, and mounted on the telephone main body 1. Connector 5 for connecting the wireless device 3 to the plurality of telephone device main bodies 1, 1a, 1b.
7, 17a.

The telephone apparatus main bodies 1, 1a, 1b are telephone main bodies (hereinafter referred to as cradle) 13, 13a, 1b.
3b and handsets (hereinafter, simply referred to as handsets) 15, 15a, 15b detachably provided to the cradle 13, 13a, 13b. 17a, the handsets 15, 15a, 15 of the telephone device body 1
b. Also, handsets 15, 15
a, 15b are provided with slots (not shown),
The IC card 5 is configured to be attached to the handsets 15, 15a, and 15b by being inserted into the slots.

The telephone apparatus main bodies 1, 1a, and 1b have the same configuration. Hereinafter, the detailed structure of the telephone apparatus main body 1 will be described as an example. As shown in FIG. 2, the cradle 13 converts a voltage (usually 10 V to 15 V) from a battery 27 of the vehicle into a predetermined power supply voltage, and a speaker 27 for generating a ring tone when a call signal is received from another telephone device. A power supply circuit 70 for supplying each part in the handset 15 and each part in the cradle 13 and a power supply from the power supply circuit 70 to each part based on a command from the microcomputer 31 in the handset 15 are controlled. That is, a power supply control circuit 75 for controlling power supply and stop is provided. Note that handset 1
The microcomputer 31 in the power supply control circuit 7
5, and is directly supplied from the power supply circuit 70.

The handset 15 of the telephone device body 1
And the wireless device 3 are connected to a voice line L for passing voice for communication.
A and a serial signal line LS through which various control serial signals such as a call signal pass.
The handset 15 includes an audio control unit 21 that amplifies an audio signal passing through the audio line LA and a serial signal control unit 23 that buffers a serial signal passing through the serial signal line LS.

The handset 15 includes a call control unit 2 for controlling a call using a microphone 41 and a speaker 43.
5 and messages sent from other telephone devices,
A display unit 22 composed of a liquid crystal display (LCD) for displaying operation guidance, operation status, and the like of the telephone device body 1, a storage unit 24, a card presence / absence detection switch 28, and an IC inserted into a slot (not shown) A card interface unit (hereinafter, referred to as a card I / F unit) 29, which is an interface for electrically connecting to the card 5, and a microphone (hereinafter, simply referred to as a microphone) 4 for handset communication.
1, a speaker 43 for outputting voice from the other party during a handset call, and an operation unit 45 provided with various key switches for dial input and selection of a call mode.
Voice control unit 21, display unit 22, serial signal control unit 23, storage unit 24, call control unit 25, card I / F unit 2.
9 and a microcomputer 31 for controlling the operation unit 45, respectively.

The microcomputer 31 constitutes the "switching means" of the present invention, and will be described later in detail.
The operation of the telephone device main body 1 can be switched to the parent device state or the child device state by setting on the operation unit 45. The IC card 5 has a memory 51 therein, and stores information such as a manufacturing number and a telephone number as “unique identification information” and a memory dial as personal information. Then, the microcomputer 31 in the handset 15 can read information such as a manufacturing number and a telephone number from the IC card 5 connected to the card I / F unit 29.

Next, the switching operation between the parent device state and the child device state in the microcomputer 31 of the telephone device main body 1 configured as described above will be described with reference to the flowchart shown in FIG. When the user selects a switching mode between the master unit state and the slave unit state by operating the key switch of the operation unit 45, the main switching operation is started in step S1. Specifically, the switching mode is selected by sequentially pressing the "5" key, the "3" key, the "F" key provided on the key switch.

In the next step S2, a message prompting the input of a personal identification number is displayed on the display unit 22. When the user inputs a correct password, the determination is "YES" and the process proceeds to the next step S3. If the password is incorrectly input, it is determined to be "NO" and step S2 is repeated. In the next step S3, a message indicating that the setting of the slave unit is enabled / disabled is displayed on the display unit 22, and the result of the key input by the user is determined. For example, the message to be displayed is “job setting Y: 1 / N:
In this case, if the user presses the "1" key, "YES" is determined, and the routine goes to the next step S4. On the other hand, if the user inputs the "2" key, "NO" is determined, and the process shifts to step S5 to end the process.

In step S4, invalidation processing of the IC card 5 is performed so that the telephone device main body 1 operates as a slave unit.
The card invalidation processing is performed as follows: (1) Even if the IC card 5 is mounted, nothing operates via the card I / F unit 29,
Do not read the information in the C card 5,
(2) Regardless of whether or not the IC card 5 is attached, the operation as a normal telephone such as making and receiving calls can be performed using the manufacturing number and the telephone number registered in the memory in the wireless device 3. It consists of two. That is, the telephone device main body 1 that normally operates only after the IC card 5 is mounted is replaced with the serial number registered in the memory of the transmitter 3 by another telephone device main body even if the IC card 5 is not mounted. Make and receive calls using phone numbers. Then, the process shifts to the next step S5 and ends.

By performing the switching setting as described above, it is possible to use the telephone units 1, 1a, and 1b as a master unit or a slave unit even if they have the same configuration. This setting is performed by a user or a setter in advance of use of the present mobile phone device. Next, the overall operation of the mobile telephone device configured as described above will be described with reference to the flowcharts of FIGS.

In this embodiment, in FIG. 1, the telephone device main body 1 is set as a master unit, and the telephone device main units 1a and 1b are set as slave units by the operation shown in FIG. . When the ignition key of the automobile is turned on and the power of the automobile telephone apparatus is turned on, the microcomputer 31 of the telephone apparatus main body 1
The control is started in step S11 shown in FIG.

In step S12, it is confirmed whether or not the IC card 5 is mounted on the telephone device main body 1 set as the master unit. If the IC card 5 is not inserted, the judgment is "NO", a message "Please insert the card" is displayed on the display unit 22, and this step S12 is repeated at intervals of 10 ms. On the other hand, if the IC card 5 is inserted, “YES” is determined, and the routine goes to the next step S13.

Step S13 when the IC card 5 is mounted.
Then, the activation process of the IC card 5 is performed. The activation process is a process of supplying power to the IC card 5 and resetting the same. At the same time, the production number and the telephone number are read from the IC card 5 and stored in a memory in the wireless device 3. For details, the I / F unit 29
The serial number and the telephone number stored in the memory 51 in the C card 5 are read and stored in the memory in the wireless device 3. Then, control goes to the next step S14.

In step S14, it is determined whether or not the read serial number and telephone number can be used in the telephone device main body 1. If the use is not permitted, "NO" is determined, and display is performed. This is displayed on the section 22 and the process proceeds to step S12. On the other hand, if the use is permitted, "YES" is determined and the next step S15
Move to If the serial number is different from the serial number read at the time of the previous use, processing such as erasing data stored at the previous use is performed, and after this processing, a function as a normal telephone is realized. The normal processing can be performed.

In step S15, normal processing as a telephone is performed, and processing of reading and writing information of the IC card 5 is performed as needed. By the way, various processes are executed in the normal process, and various control processes for realizing a function as a general telephone device are as follows. That is, (a) a calling process for transmitting a calling signal for calling another telephone device to the telephone line network via the wireless device 3, and (b) a speaker when the calling signal is transmitted from the base station. A receiving process for generating a ring tone from 27, (c) a connection for connecting the telephone device main body 1 to the telephone network when the user inputs a command to connect the telephone device main body 1 to the telephone network by generating the ring tone; Processing, (d) when the called telephone device is connected to the telephone network by calling processing, and a telephone call with the telephone device of the called party becomes possible, Is connected to the telephone line network, and when it becomes possible to talk with the telephone device of the caller, the user transmits an audio signal input from the microphone 41 of the handset 15 to the base station,
The voice signal transmitted from the telephone network (in other words, the telephone device of the called party) also performs voice input / output processing for generating voice from the speaker 43 of the handset 15.

On the other hand, also in the telephone device main bodies 1a and 1b set as the slave units, the telephone set is set as the master unit using the production number and the telephone number of the IC card 5 stored in the memory in the wireless unit 3. As in the case of the telephone device main body 1, normal processing can be performed. This step S15 is performed until it is determined in the next step S16 that there is no IC card 5.

In step S16, as in step S12, the presence or absence of the IC card 5 is checked at 10 ms intervals. Then, when it is determined that the IC card 5 is not removed by being removed, the process proceeds to the next step S17 as “NO”. When the IC card 5 is removed from the telephone device main body 1 and the process proceeds to step S17, the telephone device main bodies 1, 1a, 1
At b, it is determined whether or not a call is in progress. If a call is in progress, a call termination process for forcibly terminating the call is performed in step S18, and the process proceeds to step S19. If not, the process directly proceeds to step S19.

In step S19, a deactivation process for stopping and resetting the power supply to the IC card 5 is performed, and a message "card has been removed" is displayed on the display unit 22 and a warning is issued. A sound is generated, and a message "Please insert a card" is displayed on the display unit 22 in the same manner as when it is determined that there is no card in step S12. Then, the process ends in the next step S20.

In the state where the proper IC card 5 is not mounted on the telephone device main body 1 set as the base unit,
Since the serial number and the telephone number are not stored in the memory in the wireless device 3, not only the telephone device 1
Neither can the telephone unit 1a, 1b set as a slave unit talk. By operating as described above, it is possible to make and receive telephone calls using any of the telephone device main bodies 1, 1a, and 1b that operate with the IC card 5 attached, and constitute a so-called parent-child telephone. be able to.

By the way, when the telephone device main body 1, 1a, 1b makes a state in which a call can be made with the IC card 5 removed, the removed IC card 5 is transferred to another IC card compatible telephone device used by another. There is a risk that the phone will be worn and make a phone call with the same phone number. In order to prevent this, the presence or absence of the IC card 5 is determined as described above.
Monitoring is performed at ms intervals, and a call termination process and a card deactivation process are immediately performed.

The microcomputer 3 shown in FIG.
In the control of No. 1, 10 m in steps S12 and S16
Although the configuration is such that the presence or absence of the IC card 5 is confirmed at intervals of s, the present invention is not limited to this, and intervals of about 100 ms may be used. That is, when a person inserts and removes the IC card 5,
It suffices that the number of telephone devices having the same telephone number does not occur.

In the above example, an example in which the IC card 5 is used as an example of a "card" has been described. However, the present invention is not limited to this, and any device that can store information such as a magnetic card may be used. Further, in the above-described embodiment, an example has been described in which the present invention is implemented as an automobile telephone device. However, the present invention may be applied to a mobile telephone device or a fixed home telephone device connected to a telephone network via a transmission line.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram illustrating a configuration of an entire mobile telephone device as one embodiment of the present invention.

FIG. 2 is a block diagram illustrating a circuit configuration of a telephone device main body.

FIG. 3 is a flowchart illustrating a switching operation process executed by a microcomputer in the handset.

FIG. 4 is a flowchart illustrating an entire process executed by a microcomputer in the handset.

[Description of Signs] 1 Telephone device body 3 Car telephone radio 5 IC card 13 Cradle 31 Microcomputer (switching means)

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04M 1/00 H04M 1/02-1/23 H04M 1/24 H04M 1/58-1/62 H04M 1/66-1 / 78

Claims (2)

(57) [Claims] A card having a built-in unique identification information, a transmitter / receiver for transmitting / receiving, and a slot in which the card can be attached / detached so that the unique identification information of the card can be read out; and connected to handset receiver and transmitter device, provided in the receiver and transmitter unit, a storage unit for storing unique identification information read from the card, and the master unit state of operating readably information of the card A switching unit that switches the operation of the handset to one of a slave unit state that operates based on unique identification information in the storage unit without reading the information of the card. 2. The telephone device according to claim 1, wherein said receiving / transmitting device is a wireless device.