JP2002111842A - Telephone device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control all telephonic communication performed with a telephone device. SOLUTION: The main device 10 of a button telephone device performs the interrupted telephonic communication in answer to an interrupted arrival of a message by specified operation when the interrupted message arrival from a switched network 1 comes during either call of a dispatched call or a received call. The device 10 is provided with a telephonic communication control history table 16A. The main controller 14 within the main device 10 stores the interrupted telephonic communication history information related to the interrupted telephonic communication in the table 16A together with the telephonic communication history information about the dispatched call and received call, and also indicates the interrupted telephonic communication history information and the telephonic communication history information capable of discriminating on the indicator 25 of a slave machine 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone device capable of performing an interrupt call in response to an incoming call that arrives during a call.

[0002]

2. Description of the Related Art In a switching network, a call interruption service called a call waiting service is provided which enables an incoming call from a third party to a telephone device during a call. When a user subscribes to such a service, when a call is made from the other party B to the user who is talking to the other party A via the telephone device, the switching network is connected to the telephone apparatus of the currently talking user. Make an incoming call. Here, when the user identifies the interrupted incoming call and performs a hooking operation, the switching network detects this and connects the other party B that made the interrupted incoming call to the telephone device to connect the other party B and the user. And the caller A is held at this time. Thereafter, when the user performs the hooking operation again, the switching network connects the telephone device of the held party A and the telephone device to resume the call between the partner A and the user, and holds the called party B at this time. I do. In this way, after responding to the incoming call that arrives during the call, the user can alternately talk with a different party each time the hooking operation is performed.

[0003] Some telephone devices are capable of storing a call history relating to outgoing calls and incoming answering calls made by a user. Such call history information is read out as needed and displayed on a display or the like in a format as shown in FIG. 5, so that the call status of the user can be managed.

That is, in the case of an outgoing call history (outgoing call history), as shown in FIG. 5A, information of a caller name, an outgoing telephone number, an outgoing date, an outgoing call start time, and an outgoing call end time are stored. It is read out and displayed according to a predetermined operation. In the case of the incoming call history (incoming call response call history), FIG.
As shown in (b), each information of the called party name, the called telephone number, the called date, the incoming call start time and the incoming call end time is stored, read out and displayed according to a predetermined operation. Further, in the case of a call history, the outgoing call history shown in FIG.
FIG. 5 (c) with the incoming call history shown in (b).
Is stored and read out and displayed according to a predetermined operation. The call status of the user is grasped and managed based on the display of the display.

[0005]

However, the history information used for call management in the conventional telephone device is history information relating to a normal outgoing call and an incoming call answering call. Since the call when answering was not included, there was a problem that all calls made by the telephone device could not be managed. Therefore, the present invention
An object of the present invention is to enable all calls made by a telephone device to be managed.

[0006]

SUMMARY OF THE INVENTION In order to solve such a problem, the present invention is directed to a telephone line which is capable of receiving an incoming call from a switching network during a call, and wherein the incoming call is connected to the telephone line. A telephone device that performs an interrupt call in response to the interrupt call by a predetermined operation when the call arrives; a storage unit that stores interrupt call history information regarding the interrupt call together with call history information regarding a normal call; Display means for visually displaying the stored contents. Further, a control means is provided for displaying the interrupted call history information and the call history information stored in the storage means on the display means so as to be identifiable.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a key telephone apparatus to which the present invention is applied. The key telephone apparatus includes a main device 10 and key telephones (hereinafter referred to as “child devices”) 20A to 20N accommodated in the main device 10.
A plurality of outside lines 11a to 11m, which are ISDN lines, are accommodated in 0. An outside line group 11 composed of these outside lines 11a to 11m is connected to the switching network 1.

Main unit 10 includes an external line I / F unit 12 for controlling the outgoing / incoming of external lines 11a to 11m, and slave units 20A to 20N.
Extension I / F unit 13, a main control unit 14, a clock unit 15, a main storage unit 16 provided with a call management history table 16A described later, and external lines 11a to 11
m and a T switch (time switch) 17 for connecting a communication path between the slave units 20A to 20N. on the other hand,
Slave device 20 includes a transmission I / F unit 2 for performing transmission with main device 10.
1, communication circuit 22, slave unit control unit 23, operation input unit 24 such as dial keys and outside line keys, display unit 25, memory 2
6, a transmitter / receiver 27, an amplifier 28, a speaker 29 and the like.

In the key telephone apparatus constructed as described above, for example, the user of the slave unit 20A operates the external line key of the operation input unit 24 to make an outside line call, and operates the dial key to change the destination number. When the dial is dialed, the operation information is detected by the slave unit control unit 23 and transmitted to the transmission I / F unit 2.
1 to the main device 10. When the main control unit 14 of the main device 10 receives the operation information of the outside line key and the dial key via the extension I / F unit 13, the main control unit 14 sends the operation information to the outside line I / F unit 12, for example, via the outside line 11 a. To make a call to the switching network 1 side. When the exchange response is notified from the switching network 1 to such an outside line call, the main control unit 14
Controls the T switch 17 to control the outside line 11a and the slave 20A.
Connect the call path between. As a result, an outside-line outgoing call is performed by the user of the slave unit 20A.

At the start of such an outside line call, the main control unit 14 transmits the number of the outgoing handset 20A, the name of the user of the outgoing handset 20A, the number of the outside line 11a, the dialed number, and The call start date and the call start time based on the date information and the time information read from the clock unit 15 are stored in the call management history table 16A of the main storage unit 16 as outgoing call history information. Then, during this outside line outgoing call, when the end of the handset 20A on-hook or the end of the other party on-hook is detected, the main control unit 14
Controls the T switch 17 to disconnect the call path between the outside line 11a and the slave unit 20A, reads the time information of the clock unit 15, and sets the call start time of the outgoing call history information in the call management history table 16A as the call end time. It is stored in association with time.

On the other hand, when a call arrives from the switching network 1 to, for example, the outside line 11a, the outside line call is detected by the outside line I / F unit 12 and notified to the main control unit 14. In this case, the main control unit 14 transmits the incoming data to the child device 20A of the corresponding destination via the extension I / F unit 13. If the caller's telephone number has been notified from the switching network 1 when the incoming call arrives, the main control unit 14 receives the notified caller's telephone number and transmits it to the child device 20A. In the slave 20A, when the caller ID and the incoming data from the main device 1 are received by the transmission I / F 21A, they are transmitted to the slave controller 23.
The slave unit control unit 23 receives the caller telephone number and displays the display unit 2
5, when the incoming data is received, the amplifier 28 is controlled to transmit a ring tone from the speaker 29.

When the user of the handset 20A goes off-hook by recognizing the ringing of the incoming call and raising the handset 27 to respond to the incoming call, the hook switch information based on the off-hook is transmitted from the operation input unit 24 to the handset control. It is transmitted to the section 23 and detected by the slave unit control section 23. In this case, handset control unit 23 causes transmission I / F unit 21 to transmit off-hook information to main device 10. Main control unit 14 of main device 10
When receiving off-hook information via the extension I / F unit 13, it performs incoming call response control on the outside line I / F unit 12 and controls the T switch 17 to control the outside line 11 a and the slave unit 20.
A call path between A is connected. As a result, the outside line incoming response call (outside line incoming call) by the user of the slave unit 20A is performed.

The main control unit 14 also stores a number of the handset 20A that has responded to the incoming call, a name of the user of the handset 20A,
1a, a caller's telephone number notified from the switching network 1, a call start date and a call start time based on the date information and time information read from the clock unit 15, and a main storage as incoming call history information. It is stored in the call management history table 16A of the unit 16. If the end of the handset 20A on-hook or the end of the other party's on-hook is detected during such an external line incoming response call, the main control unit 14 controls the T switch 17 to change the call path between the outside line 11a and the handset 20A. At the same time as the call is disconnected, the time information of the clock section 15 is read out and stored as the call end time in association with the call start time of the incoming call history information in the call management history table 16A.

By the way, if the line of the telephone number corresponding to, for example, the outside line 11a accommodated in the main unit 10 has subscribed to a call interruption service called a call waiting service, the switching network 1 is When there is a call to the line of the telephone number corresponding to the outside line 11a during the call, the call is interrupted to the outside line 11a without disabling the call. In this case, the main control unit 14 transmits the incoming call interruption data to the corresponding destination handset 20A via the extension I / F unit 13. If the caller's telephone number has been notified from the switching network 1 when the interrupted call arrives, the main control unit 14 receives the notified caller's telephone number and receives the caller's telephone number.
Transmit to The slave 20A transmits the caller number and the interrupted incoming data from the main device 1 by the transmission I / F 21A to the slave controller 23, and the slave controller 23 receives the caller telephone number. When a display is performed on the display unit 25 and the interrupted incoming data is received, the amplifier 28 is controlled to transmit an interrupted incoming tone from the speaker 29 and the transmitter / receiver 27.
Of the receiver.

When the user of the handset 20A during a call performs a hooking operation by, for example, lowering and raising the handset 27 in order to recognize the interrupted ring tone and respond to the interrupted incoming call.
Hook switch operation information based on the hooking operation is transmitted from the operation input unit 24 to the slave unit control unit 23 and detected by the slave unit control unit 23. In this case, the slave unit control unit 23 transmits the hooking operation information from the transmission I / F unit 21 to the main device 10.
To send to. The main control unit 14 of the main device 10 has an extension I /
When the hooking operation information is received via the F unit 13, it is transmitted as hooking information from the external line I / F unit 12 to the switching network 1. As a result, on the switching network 1 side,
The other party A who is talking with the user at 0A is put on hold, and the other party B who made the interrupt call is connected to the slave unit 20A. As a result, the user of the slave unit 20A can talk with the new party B who has performed the call interruption.

At the start of such an interrupted incoming response call with the other party B, the main control unit 14 sets outgoing call or incoming call response with the other party A already stored in the call management history table 16A as described above. Subsequent to the call history information, the caller's telephone number that made the interrupted call (ie, the telephone number of the other party B);
The call start date and the call start time based on the date information and the time information read from the clock unit 15 are stored as interrupted call history information in pairs.

Thereafter, when the user of the handset 20A terminates the call with the other party B and performs a hooking operation to make a call with the original party A again, the hooking information is similarly transmitted to the switching network 1. Then, the child device 20A and the partner A are reconnected. In this case, the main control unit 14 reads out the time information of the clock unit 15 and stores it as the call end time in association with the call start time of the interrupted call history information in the call management history table 16A.

Thereafter, when the on-hook end of the slave unit 20A or the on-hook end of the partner A is detected,
The main control unit 14 controls the T switch 17 to disconnect the communication path between the outside line 11a and the handset 20A,
5 is read and stored as the call end time in the call management history table 16A in association with the call start time of the call history information with the other party A. In this way, the button telephone apparatus can store the history of the call-incoming response when a call is made in response to the call-in-progress during the call, in addition to the history information of the outgoing call or the call-in response. .

FIG. 2 is a flowchart showing the operation of the main control unit 14 of the main unit 10 for storing the call history information in the call management history table 16A. FIG. 3 is a diagram showing a storage state of the call management history table 16A.
The operation of the main part of the present invention will be described based on the above-described block diagram of FIG. 1, the flowchart of FIG. 2, and FIG. For example, based on the user's operation of the operation input unit 24 of the slave unit 20A, an outgoing call is made via the outside line 11a, and when the other party responds to the outgoing call, the main control unit 14 proceeds to step S1. Is determined to be “Y”. In this case, the main control unit 14 reads out the date information and the time information from the clock unit 15 in step S2, and sets the call start date and the call start time as the call start date and the call start time, respectively, in the main storage unit 16 in combination with the called party's telephone number. The information is stored in the history table 16A as shown by the reference numerals in FIG.

That is, in the telephone number column of the call management history table 16A, the called telephone number "031234" for which the calling operation was performed.
5678 ", the call start date column stores the call start date September 7 (0907), the call start time column stores the call start time 11:15 (1115),
In addition, a code "00" indicating transmission is stored in the calling / arrival field. It should be noted that the code "01" is stored in the calling / arrival field of the table 16A when an incoming call is received, and the code "11" is stored in the case of the above-described call interruption. Table 16A
At this time, the number of the outside line 11a (not the subscriber telephone number but the outside line number determined for convenience of this button telephone device) and the number of the handset 20A (extension number) are stored in pairs at this time. If the user name of the device 20A is registered, the user name is also stored in the pair.

Thereafter, the main control unit 14 controls the T-switch 17 as described above to perform an outgoing call process for connecting a call path between the outside line 11a and the slave unit 20A in step S3. As a result, the outside line calling by the user of the slave unit 20A is started. When there is an incoming call on the outside line 11a during such an outgoing call of the slave unit 20A and a response operation of the slave unit 20A to the interrupt incoming call (ie, the above-described hooking operation information) is detected, the main control unit 14 "Y" is determined for "Response to incoming call interruption?" In step S7. In this case, the main control unit 14 reads out the date and time information from the clock unit 15 in step S11, and stores them as the call start date and the call start time in the call management history table 16A as indicated by the reference numerals in FIG.

That is, following the outgoing call history information such as the outgoing code, the call start date, the call start time and the outgoing telephone number of the table 16A stored based on the outgoing call of the slave unit 20A, the call start date column of the table 16A. Call start date on September 7
The day (0907), the call start time 11:20 (1120) is stored in the call start time column, and the code "11" indicating a call interruption is stored in the calling / arrival column as interrupt call history information. . If the caller's telephone number is notified at the time of an incoming call, the caller's telephone number is stored as interrupted call history information in the corresponding telephone number column of the table 16A.

Thereafter, the main control unit 14 uses the hooking operation information indicating the response operation to the interrupted call detected from the slave unit 20A as the hooking information in step 12 as the outside line I.
A call interruption incoming call response process for transmission to the switching network 1 via the / F unit 12 is performed. As a result, on the switching network 1 side,
The user who is currently talking with the 0A user is put on hold, and the other party who made the interrupt call is connected to the slave 20A. As a result, the user of the child device 20A can talk with the other party who made the call.

During such an incoming call answering call, the handset 20A
When the user ends the call, the hooking operation is performed to re-establish the call with the original caller.
The determination of “End the call?” In step S13 is “Y”.
In this case, the main control unit 14 similarly controls the hooking information to be transmitted to the switching network 1, and thereby, the step S1
At 4, the interrupted incoming response call is terminated, the slave 20A and the original call partner are reconnected, and the call is resumed. Further, the main control unit 14 reads the time information of the clock unit 15 and proceeds to step S1.
In step 5, the time 11:22 (1122) at this time is stored as the call end time in the call end time column of the interrupted call history information indicated by the reference numeral in FIG. After the interrupt call history information is thus stored in the call management history table 16A and the call between the user of the slave 20A and the original call partner is resumed, the process returns to step S7.

If the end of the call due to the on-hook of the slave 20A or the end of the call due to the on-hook of the original call is detected during the call resumed between the user of the slave 20A and the original call partner, step S8. Is "Y", the main controller 14 controls the T-switch 17 in step S9 to perform a call termination process for disconnecting the communication path between the outside line 11a and the slave 20A. Further, the main control unit 14
The time information of the clock unit 15 is read out, and at step S10, the time 11:27 (1127) at this time is stored as the call end time in the call end time column of the above-mentioned outgoing call history information indicated by the code in the table 16A of FIG. I do. In this way, the outgoing call ends and the call management history table 16A
After the outgoing call history information is stored in the
It returns to 1 and enters the standby state.

During such a standby state, for example, the outside line 11b
When an incoming call arrives and a destination, for example, the slave unit 20B rings, the user of the slave unit 20B recognizes the incoming call and goes off-hook by raising the handset 27 to respond to the incoming call. Is received by the main control unit 14 of the main device 10 as described above, and the determination of "is the response to the incoming call?" In this case, the main control unit 14 reads out the date information and the time information from the clock unit 15 in step S5, and as the call start date and the call start time, respectively, Call management history table 16A
Is stored as shown in FIG.

That is, in the telephone number column of the call management history table 16A, the other party's telephone number "090123456" notified from the switching network 1 at the time of an incoming call, the call start date September 10 (0910) in the call start date column, The call start time 20:03 (2003) is stored in the call start time column, and a code “01” indicating an incoming call is stored in the outgoing / arrival column as incoming call history information. Although not shown in the table 16A, the number of the incoming line 11b and the number (extension number) of the handset 20B are also stored in pairs at this time, and if the user name of the handset 20B is registered, The user name is also stored in the pair.

Thereafter, the main control unit 14 controls the external line I / F unit 1
2 and the T-switch 17
Is controlled in step S6 to connect the communication path between the outside line 11a and the slave unit 20A. This allows
An outside-line incoming response call is performed by the user of the slave 20B.

During such an incoming call, an incoming call arrives, and a response to the incoming call on the side of the slave unit 20B is detected.
Is "Y", the above-described steps S11 to S11
15 are sequentially performed, and the incoming call is not terminated during the incoming response call of the slave unit 20B, and the incoming response call is terminated as it is. If the determination in step S8 becomes "Y", the call is terminated in step S9. The process is performed, and at step S10, the time 20:15 (2015) at this time is stored as the call end time in the call end time column of the above-mentioned incoming call history information indicated by the reference numeral in the table 16A of FIG. In this way, the incoming call is terminated and the call management history table 1
After the incoming call history information is stored in 6A, the process returns to step S1 and enters a standby state.

During the standby state, the user of the slave unit 20A makes an outgoing call, and when the other party responds to the outgoing call, the main control unit 14 changes the "outgoing call?" And the clock unit 15 is determined in step S2.
, And read out the date and time information from the telephone number (063123411) for which the calling operation was performed as the call start date (0911) and the call start time (1930), respectively.
It is stored in the call management history table 16A together with 1) and the code "00" indicating the transmission as shown by the reference numerals in FIG.

When the outgoing call of the slave unit 20A is terminated as it is and the determination in step S8 becomes "Y", the call termination processing is performed in step S9, and in step S10, the time 19:52 (1952) ) Is stored as the call end time in the call end time column of the outgoing call history information indicated by the code in the table 16A of FIG. In this way, the outgoing call of the handset 20A is completed and the call management history table 1
After the outgoing call history information is stored in 6A, the process returns to step S1 and returns to the standby state.

As described above, the call management history table 1
The history information stored in 6A can be read out by a predetermined operation of the child device 20 and displayed on the display unit 25 of the child device 20. If a printer is connected to the main unit 10, the history information can be sent to the printer and printed out to display the history information. FIG. 4 is a diagram showing the display status of such call history information. When the first operation is performed on the operation input unit 24 of the child device 20, the main control unit 14 of the main device 10 changes the history information on the outgoing call among the history information stored in the call management history table 16A. The oldest ones are read out and transmitted to the slave unit 20 and displayed on the display unit 25 as shown in FIG.

That is, the current date and time "September 12, 11:15" are first displayed on the display unit 25 of the slave unit 20, and then the caller "O" whose call history in the table 16A is the oldest is displayed. ○ Taro ”, calling phone number“ 0312345678 ”
Is displayed, followed by the outgoing call date “September 7”, the outgoing call start time and the outgoing call end time “11: 15-1”.
1:27 "is displayed. Subsequently, it is displayed that there was an interruption call during the outgoing call, and finally, a caller (caller name is unknown) relating to a recent outgoing call, a calling telephone number “0612345667”, and a calling date “9” March 11 "
And the outgoing call start time and the outgoing call end time “19: 3
0-19: 52 "is displayed.

When the second operation is performed on the operation input unit 24 of the slave unit 20, the main control unit 14 of the main unit 10 transmits the history information stored in the call management history table 16A regarding the incoming call. The history information is read out in order from the oldest history and transmitted to the slave 20 and displayed on the display unit 25 in FIG.
(B). The incoming call history also includes the above-described interrupted call answering call. In this case, first, "warning 1" is displayed as the interrupted call information, and further, the called party name and the called telephone number are displayed in association with this.

Here, the called telephone number is a caller telephone number notified from the switching network 1 at the time of an incoming call, and a caller telephone number is notified from the switching network 1 at the time of an incoming call. If the caller name corresponding to the telephone number is registered in the apparatus in advance, the caller telephone number and the caller name can be displayed as the called telephone number and the called person, respectively. Furthermore, the date "September 7" when the call was interrupted
And the call start time and the call end time “11: 2”
0-11: 22 "is displayed. Following this interrupted call information, the name of the called party who made the incoming answering call "Hanako OO"
, The incoming telephone number “0901234567”, the incoming date “September 10”, the incoming call start time and the incoming call end time “20: 03-20: 15” are displayed.

When the third operation is performed on the operation input unit 24 of the slave unit 20, the main control unit 14 of the main unit 10 transmits all of the call information out of the history information stored in the call management history table 16A. 4 is read out in order from the oldest one, and transmitted to the slave unit 20.
A display as shown in FIG. 4 (c) combining the outgoing call history of (a) and the incoming call history of FIG. 4 (b) is performed.

As described above, the button telephone apparatus of the present invention provides the call management history table 16A in addition to the history information of the outgoing call and the incoming call, as well as the history of the interrupted call when the call is made in response to the incoming call during the call. Can be stored. Therefore, since all call histories made by the slave 20 are stored in the call management history table 16A, all calls can be managed. Also, the call management history table 16
The outgoing call history information, the incoming call history information, and the interrupted call history information stored in A can be displayed on the display unit 25 of the handset 20 in an identifiable manner. As a result, the call status of the user can be managed in more detail.

In the present embodiment, when a call is made in response to an incoming call, the call history information is stored in the call management history table 16A. Even if the call is not made, if the caller's telephone number is notified from the switching network 1, the caller's telephone number can be received and stored in the call management history table 16A as the called telephone number and called party name. By storing such a telephone number, it is possible to return to the caller of the telephone number and make a call later. In addition, even when the telephone apparatus has an answering machine function and an incoming call is received while recording the other party's message in response to the incoming call, it can be similarly stored in the call management history table 16A as the incoming call history. is there.

In this embodiment, an example has been described in which the external line such as the external line 11a is a digital line such as an ISDN. However, the same effect can be obtained even with an analog line. In the case of an analog line, the caller telephone number notified from the switching network 1 is received by the modem. Further, in this embodiment, the example of the key telephone device has been described, but the same effect can be obtained even when applied to a single telephone.

[0040]

As described above, according to the present invention, the telephone line is connected to a telephone line that can receive an incoming call from a switching network during a telephone call. In a telephone device that performs an interrupt call in response to an incoming call, the call history information regarding the interrupt call is stored in a storage unit together with the call history information regarding a normal call, and the storage content of the storage unit is visually displayed. As a result, the status of all calls made by the telephone device can be displayed, so that all calls can be managed. Further, since the interrupt call history information and the call history information stored in the storage means are displayed on the display means so as to be identifiable, all calls made by the telephone device can be managed in more detail. .

[Brief description of the drawings]

FIG. 1 is a block diagram of a key telephone apparatus to which the present invention is applied.

FIG. 2 is a flowchart showing an operation of a main part of the key telephone apparatus.

FIG. 3 is a diagram showing a configuration of a call management history table of the key telephone device.

FIG. 4 is a diagram showing a display state of a call history of the key telephone device.

FIG. 5 is a diagram showing a display state of a call history of a conventional telephone device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Switching network, 10 ... Main apparatus, 11a-11m ... Outside line, 1
2: external line I / F unit, 13: internal line I / F unit, 14: main control unit, 15: clock unit, 16: main storage unit, 16A: call management history table, 17: T switch, 20A to 20N: button Telephone (slave unit), 21: transmission I / F unit, 22: communication circuit, 23: slave unit control unit, 24: operation input unit, 25: display unit, 27: transceiver, 29: speaker.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tomoaki Yoshino 2-3-2 Shimomeguro, Meguro-ku, Tokyo F-term in Tamura Electric Co., Ltd. (reference) 5K027 AA03 FF22 HH18 HH21 HH23 5K036 AA12 DD33 EE01 JJ02 JJ04 JJ12

Claims (2)

[Claims] 1. A telephone device which is connected to a telephone line capable of receiving an incoming call from a switching network during a telephone call and responds by a predetermined operation when said incoming call arrives at said telephone line to perform an interrupting call. A telephone device, comprising: storage means for storing interrupted call history information on the interrupted call together with call history information on the call; and display means for visually displaying the storage contents of the storage means. 2. The telephone according to claim 1, further comprising control means for displaying the interrupted call history information and the call history information stored in the storage means on the display means so as to be identifiable. apparatus.