JPH02186865A - Voice accumulation device - Google Patents

Abstract

PURPOSE:To save waste in the accumulation capacity of a message in a file by inputting the effective time of the message at the time of storing the message, and automatically deleting the message when no reproduction of the message is performed after the lapse of the effective time of the message. CONSTITUTION:An effective time storage part 11 which stores the effective time of the message inputted with the message from an outgoing person at the time of accumulating the message is provided in a message storage area 6 in the data accumulation area of the file 5. When no reproduction of the message stored in the message storage area 6 is performed even after the lapse of the effective time stored in the effective time storage part 11, the message is deleted from the message storage area 8. In such a way, a voice accumulation device in which the waste in the accumulation capacity of the message of the file 5 is saved can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a voice storage device connected to a switching network.

[Conventional technology]

FIG. 4 is a block diagram showing a conventional audio storage device disclosed in, for example, Japanese Unexamined Patent Publication No. 58-137354. In the figure, 1 is a voice storage device, 2 is a switching network to which this voice storage device 1 is connected, 3 is a switching control circuit that controls this switching network 2, and 41 to 4n are installed in the switching network 2. This is a subscriber terminal. Further, reference numeral 5 denotes a file disposed in the audio storage device 1, which has data storage areas 51 to 5m corresponding to receivers as shown in FIG. It is provided with a plurality of message storage areas 6 for storing messages. Further, in 7, the caller communicates with the subscriber terminals 41 to 4 via the switching network 2.
The message sent from n is compressed by analog-to-digital conversion (hereinafter referred to as A/D conversion) and sent to file 5, and the data read from file 5 is expanded and converted to digital-to-analog conversion (hereinafter referred to as D).
8 is a storage control circuit connected to the exchange control circuit 3 and controlling the voice compression/expansion circuit 7.

Next, the operation will be explained. When the sender wishes to convey a message to a desired recipient, the sender designates the recipient from a predetermined subscriber terminal, such as the subscriber terminal 41, and makes a call. When the switching control circuit 3 identifies that the call is a call requesting message storage in the voice storage device 1, it controls the switching network 2 to connect the subscriber terminal 41 to the voice compression/expansion circuit 7. At the same time, the receiver number of the designated receiver is notified to the storage control circuit 8. The voice compression ψ expansion circuit 7 A/D converts the message sent from the subscriber terminal 41 via the switching network 2 and performs predetermined data outgoing processing, and the storage control circuit 8 converts the message sent from the subscriber terminal 41 to the received data. The message is stored in a data storage area in the file 5 assigned to the recipient specified based on the recipient number, for example, in an empty message storage area 6 of the data storage area 51.

On the other hand, if the recipient wants to play the message addressed to him/her,
The recipient makes a call by specifying a data storage area, for example data storage area 51, in the file 5 allocated to him/her from a predetermined subscriber terminal, for example subscriber terminal 42. When the switching control circuit 3 identifies that the call is a call requesting reading of a message from the voice storage device 1, it controls the switching network 2 and connects the subscriber terminal 42 to the voice compression/expansion circuit 7. At the same time, information on the designated data storage area 51 is notified to the storage control circuit 8.

The audio compression/expansion circuit 7 is located in the designated data storage area 5.
The stored messages are read out from each message storage area 6 of 1, and subjected to predetermined data decompression processing and D/
It performs A conversion and sends it to the switching network 2. This message is transmitted to the subscriber terminal 42 via the switching network 2, and reproduced at the subscriber terminal 42 as voice data.

[Problem to be solved by the invention]

Conventional audio storage devices are configured as described above, so if the recipient does not play back the contents of the data storage area 5 to 5m allocated to him/her due to absence etc. Message storage area 6 for long messages
There was a problem that the message storage capacity of file 5 was insufficient.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an audio storage device that does not waste file message storage capacity.

[Means to solve the problem]

The voice storage device according to the present invention is provided with a valid time storage section in the message storage area in the data storage area for storing the valid time of the message input by the sender along with the message to be stored, and the valid time is stored in the message storage area. Messages that are not reproduced even after a certain period of time are deleted from the message storage area.

[For production]

The voice storage device according to the present invention checks the valid time of the message stored in the message storage area of each data storage area by referring to the valid time storage section provided in the message storage area, If there is a message that has not been reproduced, the message is deleted from the message storage area, thereby realizing an audio storage device that does not waste the message storage capacity of a file.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, 1 is a voice storage device, 2 is a switching network, 3 is a switching control circuit, 41 to 4n are subscriber terminals, 5 is a file, and 7
8 is an audio compression/expansion circuit, 8 is an accumulation control circuit, and the fourth
Since these parts are the same as or equivalent to those in the prior art, which are denoted by the same reference numerals in the figures, detailed explanations will be omitted. Further, 9 is a clock provided in the storage control circuit 8. here,
The file 5 has each message storage area 6 within its data storage areas 51 to 5m not only an area for storing the main body of the message but also an area for storing the valid time of the message in correspondence with the stored message. This is different from the conventional 7-aisle 5 shown in FIG. 4 in that it is also provided with a.

Figure 2 shows each data storage area 5 of such a file 5.
FIG. 2 is an explanatory diagram showing the structure of a message storage area 6 within 1 to 5 m. In the figure, 10 is a message storage unit that stores the main body of the message input by the sender, 11 is a valid time storage unit that stores the valid time of the message that is input by the sender at the same time as the message, and 12
is a valid flag storage unit that stores a message valid flag that indicates whether or not the message stored in the message storage unit 10 has been reproduced by the recipient.

Next, the operation will be explained. When a caller wishes to convey a message to a desired receiver, the sender designates a receiver from a predetermined subscriber terminal, such as the subscriber terminal 41, and makes a call. The message input by the sender is stored in the message storage section 10 in the message storage area 6 of the designated recipient's data storage area, for example, the data storage area 51, in the same way as in the conventional case. When inputting the message, the sender also inputs the effective time of the message from the subscriber terminal 41. This effective time is transmitted from the exchange control circuit 3 to the storage control circuit 8, and the storage control circuit 8 receives the received effective time and stores it in the message storage area 6 in which the message is stored in the message storage section 10. It is stored in the section 11. Furthermore, the message validity flag in the validity flag storage section 12 of the message storage area 6, which indicates whether or not the message has been heard by the recipient, is changed to be valid (message has not been reproduced yet).

On the other hand, if the recipient wants to play back a message addressed to him or herself, the recipient can use a predetermined subscriber terminal, such as the subscriber terminal 42.
The data storage area in the file 5 allocated to the user, for example, the data storage area 51, is specified and a call is made.

Hereinafter, the process of reproducing the messages stored in the message storage section 10 of each message storage area 6 of the data storage area 51 is the same as in the conventional case. If the message is played back, the storage control circuit 8 invalidates the message valid flag in the valid flag storage section 12 of the message storage area 6 where the message was stored in the message storage section 10 (the message has already been played back). Change the display to .

The storage control circuit 8 also compares the time indicated by the built-in clock 9 with the valid time of the message stored in the valid time storage section 11 of each message storage area 6 at a predetermined period. As a result of the comparison, if the existence of a message storage area 6 whose valid time stored in the valid time storage section 11 is earlier than the time indicated by the clock 9 is detected, the validity flag of the message storage area 6 is stored. Even if the message validity flag stored in the message storage section 12 is still valid, the storage control circuit 8 determines that the message is no longer needed and deletes the message stored in the message storage section 10.

Note that in the above example, the valid time of the message is input,
If the message is not played back even after that time has elapsed, the message is deleted. However, as shown in FIG. 3, the caller's number is stored in each message storage area 6 in association with the message. You may also do so. Third
In the figure, reference numeral 13 denotes a caller number storage section provided in each message storage area 6 to store the caller's number. The caller's number is transmitted to the storage control circuit 8 via the exchange control circuit 3 when a message is input, and the message is stored in the message storage area 60 and the caller number storage section 13 stored in the message storage section 10. Ru. When a message is deleted under the same conditions as in the embodiment shown in FIG. is left as is without being deleted, and when the recipient plays the message in each message storage area 6 in the data storage area 51, the message is stored in the caller number storage section 13 in the message storage area 6 from which the message was deleted. Information regarding the deleted message can be conveyed to the recipient by repeating the information based on the left caller's number.

〔Effect of the invention〕

As described above, according to the present invention, the effective time of a message is input when the message is stored, and if the message is not played back even after the message's effective time has passed, the message is automatically deleted. Messages that are no longer needed will not remain stored in the message storage area for a long time, and there is an effect that an audio storage device that does not waste the message storage capacity of files can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a voice storage device according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing the structure of each message storage area within the data storage area, and FIG. 3 is another embodiment of the invention. FIG. 4 is a block diagram showing a conventional audio storage device, and FIG. 5 is an explanatory drawing showing the structure of its file. 1 is a voice storage device, 2 is a switching network, 3 is a switching control circuit, 4
1 to 4n are subscriber terminals, 5 is a file, 9 is a clock, 10
11 is a message storage section, 11 is a valid time storage section, 12 is a valid flag storage section, and 13 is a caller number storage section. In addition, the same symbols in the figures indicate the same or equivalent parts. Patent Applicant: Mitsubishi Electric Corporation (2 others) Figure 1: 41-4n Section Pigeon Terminal

Claims (1)

[Claims] It is connected to a switching network, stores a message from a sender to a recipient in an empty message storage area in a data storage area provided in a file corresponding to the recipient, and receives a request from the recipient. In the voice storage device, the message stored in the message storage area of the corresponding data storage area is read out and supplied to the recipient according to the following: A valid time storage section is provided for storing the valid time of the message inputted by the sender together with the message, and the message is not stored in the message storage area even after the valid time stored in the valid time storage section has elapsed. A voice storage device characterized in that when a message is not played back, the message is deleted from the message storage area.