JPH0369224B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a message storage and playback device, and more particularly to a message storage and playback device in which messages from a telephone exchange are temporarily stored in a file and then played back again.

(2) Prior art and problems In the conventional message storage and playback device, a message is divided into blocks as shown in Fig. 1, and a message block M is preceded by a time label T.
It was stored in the file in a format with .
The content of this time label T is a number corresponding to the time when the message block M was input to the message storage and playback device. For example, if message blocks M ₁ , M ₂ , and M ₁₀ are input at time points t ₁ , t ₂ , and t ₁₀ , respectively, the contents of each time label T ₁ , T ₂ , and T ₁₀ are 1, 2, and 10. However, conventional message storage and playback devices have had the problem that when trying to process a message block M input only with a time label T containing such a serial number, the desired output result cannot be obtained. .

For example, as shown _{in FIG .}
At t ₄ , the message block M ₁ ,
M ₂ , M ₃ , and M ₄ are input, and no message blocks are input from time t ₅ to t ₇ as shown by the broken line, and message blocks M ₇ and M ₈ are input at subsequent time t ₇ and t ₈ . , the storage format in the file is that each message has a time label T ₁ , T ₄ ,
This results in the addition of T ₇ and T ₈ (Figure 2 2). In the above case, message blocks M ₂ and M ₃ are silent information, and at time t ₅ the input is temporarily stopped and the pause P ₁ state is entered, and no message is input and the pause is canceled and the pause P ₂ state is entered at time t ₇ . Message M ₇ is being input again.

When outputting messages accumulated in this way, each message block is processed by time labels T ₁ , T ₄ , T ₇ , and T ₈ , so the serial number ₁ of time label T 1 of message block M ₁ is The serial number _{4 of the time label T 4} of the message block M ₄ is compared and determined to be discontinuous, and two silent message blocks M ₂ and M ₃ are output between M ₁ and M ₄ (Fig. 2). 3). This behavior is similar to Message M ₄ .
Same thing happens for _M7 , silent message
M ₅ and M ₆ are output (Figure 2, 3).

However, these output silent message blocks M ₅ and M ₆ are not originally input.
As is clear from FIG. 2, since no message is input from input time _t5 to _t7 , message blocks _M4 and _M7 must be output continuously.

In this way, in conventional message storage and playback devices, input message blocks are processed based only on the time label containing the serial number added to them, so message blocks with discontinuous serial numbers can be processed as desired. There was a problem in that it was difficult to output and play back the format.

(3) Purpose of the Invention The purpose of the present invention is to obtain a reproduction message in a predetermined format by adding a control field containing reproduction format information in addition to a time label to each input message block. .

(4) Structure of the Invention According to the present invention, a message from an exchange is stored in an input buffer, a time label is added by a serial number counter connected to the input buffer, and the message is stored in a file, and the message with the time label added is stored in a file. In a message storage/reproduction device which stores a message from a file into an output buffer and then reproduces it in a predetermined format, a control field addition circuit is connected to the input buffer, and a control field detection circuit and a reproduction circuit are connected to the output buffer. A control circuit is connected, the control field adding circuit distinguishes different playback format information depending on the content of the message stored in the input buffer, and adds a control field, and the control field detection circuit adds a control field to the message stored in the output buffer. There is provided a message storage and playback device characterized in that it detects playback format information in a control field and performs playback output control based on a time label and the playback format information.

(5) Embodiments of the Invention The present invention will now be described by way of embodiments with reference to the accompanying drawings.

FIG. 3 is a conceptual diagram showing a message storage format in the message storage and playback device according to the present invention. The difference from the conventional storage format is that a control field C is added to the message block M in addition to the time label T. Control field C contains storage completion information _C1 and message processing information.
Consists of C ₂ . The storage completion information _C1 is information indicating whether the input message is the last one or not.
If the input message block is the last message, 1 is written, otherwise 0 is written. Message processing information C ₂ is information indicating the relationship of the message block to the immediately preceding message block or a set of messages, and if there is a special relationship such as canceling a pause, 1 is also If the relationship is simply continuous, 0 is entered in each. With the above settings, when control field C is 00, time label control is performed, when control field C is 10, message playback is ended, and when control field C is 01, message block M is started. When the control field C is 11, the next message block M is continuously played. Note that it goes without saying that the types of control information in the control field C are not limited to the four types described above.

FIG. 4 is a circuit diagram of a message storage and reproducing device according to the present invention. With this device, the reference sign
The message block M input from the exchange as shown by IN is stored in the input buffer 1 only when it is a voice message block, and the time label T and control field described above are stored by the serial number counter 11 and the control field addition circuit 12. C is added, selection circuit 3 and file controller 4
When these accumulated messages are to be output, they are stored in the output buffer 2 and are converted to the time label T by the control field detection circuit 21 and the reproduction control circuit 22. The message is reproduced based on the control field C and sent to the exchange as indicated by reference numeral OUT.

The serial number counter 11 has the function of writing a serial number in the time label T (FIG. 3) of the message block M stored in the input buffer 1 in accordance with the elapsed time. A control field addition circuit 12 converts the above-mentioned control field C into a message block M based on information from a processor 13 connected to the exchange side.
(Figure 3). Further, the control field detection circuit 21 detects the information in the control field C and sends a command to the reproduction control circuit 22. Based on this command, the reproduction control circuit 22 converts the message stored in the output buffer 2 into a predetermined reproduction format. Output with .

Furthermore, the selection circuit 3 switches the transfer direction of input/output messages, and the file controller 4 has an interface function for specifying the physical storage address of the input/output messages to/from the file 5.

Next, the apparatus of the present invention (fourth
The operation of FIG. 2 will be explained with reference to FIGS. 5 and 6.

First, as shown in FIG. 5, message blocks M ₁ , M ₂ , M ₃ , M ₄ , M ₇ , and M ₈ are sent from the exchange at times t ₁ , t ₂ , t ₃ , t ₄ , t ₇ , and t ₈ , respectively. It is stored in input buffer 1 at . Next, the serial number counter 11 adds time labels T ₁ , T ₄ , T ₇ , and T ₈ to message blocks M ₁ , M ₄ , M ₇ , and M ₈ , respectively. In this case, no time label is added between the pause P ₁ and its release P ₂ by a command from the processor 13 connected to the exchange side. In addition, the information from the processor 13 provides the storage completion information C ₁ (third
0, 0, 0, 1 are written for each message block M ₁ , M ₄ , M ₇ , M ₈ whose contents are formed by the control field addition circuit 12 and stored in the input buffer 1. Accumulation end information C ₁₁ ,
C ₄₁ , C ₇₁ , and C ₈₁ are added. Similarly, message processing information C ₁₂ , C ₄₂ , C ₇₂ , and C ₈₂ are added to corresponding message blocks M ₁ , M ₄ , M ₇ , and M ₈ with contents of 0, 0, 1, and 0, respectively. The message block M (Fig. 3) to which the time label T and control information C have been added in this way is transferred to the input buffer 1.
The data is stored at a predetermined address in the file 5 in the format shown in FIG. 2 via the selection circuit 3 and file controller 4.

When reproducing message blocks accumulated in this way, instructions from the exchange are sent to the processor 1.
3 to the file controller 4,
Message blocks accumulated at a predetermined location in the file 5 are stored in the output buffer 2. In this case, the format stored in buffer 2 is shown in Figure 5.
This is the same as the in-file storage format.

Time label by file controller 4
T ₁ and T ₄ are compared, and since the contents of M ₁ and M ₄ are discontinuous, the control field C ₄ is sent to the control field detection circuit 21 . The circuit 21 detects 00, which is the content of the control field _C4 , and sends an instruction to the reproduction control circuit 22, and the output buffer 2 forms silent message blocks _M2 and _M3 between the message blocks _M1 and _M4 . do.

Furthermore, although the time labels _T4 and _T7 are discontinuous, the content of the control field _C7 is 01, so the reproduction control circuit 22 instructs the buffer 2 to continuously reproduce message blocks _M4 and _M7 . Instructions are given. Furthermore, since the time labels _T7 and _T8 are consecutive numbers, it is determined that they will be played back continuously, and since the content of the control field _C8 is 10, the message playback is ended.

In this way, time label T and control field C
Each message block whose reproduction format has been determined as shown in FIG. 3 is output by the reproduction control circuit 22 to the exchange in the format shown in FIG. 3.

FIG. 6 shows message blocks M 6 , _{M 7 ,} of messages input from t ₆ to t ₉ , between message blocks M ₁ and M ₂ input at times t ₁ and t ₂ .
If you want to insert _M8 and edit it as one message, the device of the present invention starts up based on the operation of the processor 13 by the signal at the insertion position S.
This is a case where output in the format shown in FIG. 4 is obtained.

In this case, due to the operation of each circuit of the device described above, at the time of input into the file 5, the message block is
This is the storage format for message B1 consisting of M ₁ , M ₂ and M ₄ and message B2 consisting of message blocks M ₆ and M ₈ (FIG. 6, 2). Then file 5
, Message block M ₁ , as one message for the two messages, as shown by the broken line.
The messages are edited in the order of M ₆ , M ₈ , M ₂ , and M ₄ (Figure 6, 3).

When playing the message, the time labels T ₁ and T ₆ are discontinuous, but the control field C ₆ is
01, message block _M6 is continuously reproduced (Fig. 6, 4). Also, time labels T ₆ and T ₈ are discontinuous, but since control field C ₈ is 11, a silent message block M ₇ is formed between message blocks M ₆ and M ₈ , and message blocks M ₆ ,
It is reproduced as a message block series consisting of M ₇ and M ₈ (Figure 6, 4). Furthermore, time label T ₈ and
Although T ₂ is discontinuous, the contents of control field C ₈ are
11, so the message block immediately after that is M ₂
is played (Fig. 6, 4).

(6) Effects of the Invention According to the present invention, as described above, by adding a control field containing playback format information in addition to the time label to each input message,
A playback message in a predetermined format can be obtained.

[Brief explanation of drawings]

FIG. 1 is a conceptual diagram showing a message storage format in a conventional message storage and playback device, FIG. 2 is an explanatory diagram of the operation of the conventional message storage and playback device, and FIG. 3 is a message storage format in a message storage and playback device according to the present invention. FIG. 4 is a conceptual diagram showing the storage format, FIG. 4 is a circuit diagram of the message storage and reproducing apparatus according to the present invention, and FIGS. 5 and 6 are diagrams explaining the operation of FIG. 4. 1...Input buffer, 2...Output buffer, 3
...Selection circuit, 4...File controller, 5
...File, 11...Serial number counter, 12...
Control field addition circuit, 13...processor,
21...Control field detection circuit, 22...Reproduction control circuit.

Claims (1)

[Claims] 1 Store the message from the exchange in an input buffer, add a time label using a serial number counter connected to the input buffer, and store it in a file.
In a message storage and playback device that stores a message to which a time label has been added from a file to an output buffer and then plays it back in a predetermined format, a control field addition circuit is connected to the input buffer, and a control field addition circuit is connected to the output buffer. A control field detection circuit and a reproduction control circuit are connected to the control field detection circuit, and the control field addition circuit distinguishes different reproduction format information depending on the content of the message stored in the input buffer and adds a control field. A message storage and playback device is characterized in that it detects playback format information in a control field from a message stored in an output buffer and controls playback output based on a time label and the playback format information.