JPH11289386A - Recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manage sound recording data of contents of a call. SOLUTION: In a recording and reproducing device 101, provided with a sound recording block 102 to output the contents of the call of a terminal as the sound recording data, a sound recording and reproducing part for recording sound recording data in a recording medium and a CPU 104 for performing the control for recording the sound recording data in the recording and reproducing part and to simultaneously perform the control to reproduce the recorded sound recording data, an on/off hook detector 108 for detecting on/off hook states of the terminal, a dual-tone multi frequency(DTMF) detector to detect a DTMF signal generated by the terminal and a controller to start sound recording of the contents of the call, when the off hook state is detected and to simultaneously perform control to add the DTMF signal to the sound recording data and to output it are provided, the control to add the DTMF signal generated by the terminal at the last of the off hook state to the sound recording data and to record it in the recording medium is performed and the sound recording data recorded in the recording medium, based on holding period of recording of the contents of the call set by the DTMF signal, is managed at the same time by the CPU 104.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus capable of recording and storing the contents of a telephone call and reproducing the recorded contents.

[0002]

2. Description of the Related Art There is a recording / reproducing apparatus in which a plurality of terminals are connected using a communication line, and which can record communication contents between the terminals and reproduce the recorded communication contents.
This recording / reproducing apparatus is used for recording communication contents in securities transactions and the like using a telephone line.

FIG. 6 is a schematic diagram showing a schematic configuration of a conventional recording / reproducing apparatus. In FIG. 6, a conventional recording / reproducing apparatus 601 for long-time recording on multiple channels includes a recording block 602, a reproducing block 603, a CPU 604,
A main memory 605, a first drive unit 606, and a second drive unit 607 are provided. The first drive unit 606 and the second drive unit 607 serve as a recording medium (not shown) as a digital audio tape (DAT).
o Tape).

In FIG. 6, a recording / reproducing apparatus 601 has a plurality of recording blocks 602, and each recording block 602 has an auto level controller (A).
LC: Auto Level Controller) 608, audio compressor 6
09, on / off hook detector 610, controller 6
11, a FIFO memory 612 is provided. The reproduction block 603 includes a FIFO memory 613, a sound expander 614, and an amplifier 615.

[0005] A telephone line of a plurality of channels (CH) 1 to n is connected to the recording / reproducing device 601, and each channel is connected to a recording block 602 which performs a recording process of the contents of a call. CH1 signal is ON
It is input to the off-hook detector 610 and the ALC 608.

The on / off hook detector 610 is connected to the CH1
By monitoring the change in the DC voltage on the line, it is detected whether the circuit is in the on-hook state or the off-hook state. Based on the detection result of the on / off hook detector 610, the controller 611 starts recording the content of the call when the telephone goes off-hook (line connection), and starts recording the content of the telephone when it goes on-hook (line disconnection). Control to end recording. The ALC 608 adjusts the gain so that the level of the input signal becomes constant, and the audio compressor 609 in the subsequent stage.
Output to

[0007] The audio compressor 609 converts the input analog signal into a digital signal and then performs a compression signal process. The recording data on which the compression signal processing has been performed is sequentially and periodically written to the FIFO memory 612 as block data per unit time under the control of the controller 611.

The CPU 604 sequentially reads data from the FIFO memory 612 of each recording block 602 at regular intervals, adds a CH number, date and time information, and the like, and writes the recorded data into the main memory 605 according to a fixed format. Do.

When the amount of data in the main memory 605 reaches a certain amount, under the control of the CPU 604, the recording data is written to the DAT of the first drive unit 606. First
When the recording capacity of the DAT of the drive unit 606 becomes full, the second drive unit 607 continues to record the recording data. Further, the second drive unit 607 may simultaneously record the same data as the first drive unit 606 as a backup in order to reliably record the contents of the call.

The main memory 605 or the first drive unit 6
06 and the operation of reproducing the recorded data from the second drive unit 607 will be described. If there is a playback request based on the CH number and the date and time information, it is immediately after the content of the call intended for playback has been recorded, and if the recorded data remains in the main memory 605, the CPU 604 makes a recording from the main memory 605. Read data and play block 6
03 to the FIFO memory 613. The written recording data is sequentially read out from the FIFO memory 613, expanded by the audio expander 614, and
After analog conversion, it is amplified by the amplifier 615,
Output as reproduction data.

Next, when the recording data requested to be reproduced is in the first drive unit 606 where other recording data is being recorded, the CPU 604 suspends the recording of the other recording data in the first drive unit 606. Then, the recording data requested to be reproduced is searched for and the recorded data is reproduced. The recorded data read from the first drive unit 606 is
03 and is output from the reproduction block 603 as reproduction data. However, when the recording of the recording data by the first drive unit 606 is interrupted, the second drive unit 60
7 continues the recording of the recording data.

Next, when the recording data requested to be reproduced is in the second drive unit 607 in which the recording operation is not performed, the CPU 604 continues the recording operation of the recording data in the first drive unit 606, The second drive unit 607 searches for the recorded data requested to be reproduced, and reproduces the recorded data. The recorded data read from the second drive unit 607 is transferred to the playback block 603,
The data is output from the reproduction block 603 as reproduction data.

[0013]

However, since the above-mentioned recording / reproducing apparatus uses a tape-shaped recording medium, there is no request for reproducing the recorded data during the recording operation of the contents of the call. In such a case, there is a disadvantage that it takes time to search for reading the recorded sound data, that is, it takes time to access the recorded sound data.

In addition, the recording / reproducing apparatus uses the tape-shaped recording medium, so that the
It is difficult to manage recorded data such as deleting recorded data that does not require recording. Therefore, regardless of whether the call content is a call content that requires recording or a call content that does not require recording, all of the call content is recorded on a recording medium, and the disadvantage that many recording media are required is required. there were.

Therefore, according to the present invention, it is possible to simultaneously perform a recording operation and a reproducing operation of the contents of a call, to set whether or not to record the contents of the call, and to automatically record unnecessary recording data on a recording medium. It is an object of the present invention to provide a recording / reproducing apparatus capable of performing recording data management by deleting the recording data.

[0016]

According to the first aspect of the present invention, there is provided a recording block which is connected to each of a plurality of terminals and performs a compression process on the communication contents of the lines and outputs the data as recording data; A main memory for storing a fixed amount of recording data output from the main memory, a recording / reproducing unit for recording the recording data stored in the main memory on a recording medium, and recording the recording data of the recording block in the recording / reproducing unit via the main memory An on / off hook for detecting whether the terminal is in an on-hook state or an off-hook state, the control comprising: a CPU for performing control and reproducing the recorded data recorded in the main memory or the recording / reproducing unit; Detector and DTMF (Dual Tone
A DTMF detector for detecting a Multi Frequency) signal, and when the on / off-hook detector detects an off-hook state, the recording of the content of the call is started, and the DTMF signal detected by the DTMF detector is added to the recording data and output. And a controller for controlling the recording / reproducing unit for adding the DTMF signal generated at the end of the off-hook state to the recording data and recording the recording data on the recording medium, and controlling the communication set by the DTMF signal. It is characterized in that the recording data recorded on the recording medium is managed on the basis of the recording period of the contents.

The present invention according to claim 2 provides the present invention according to claim 1.
In the recording / reproducing apparatus described above, the CPU deletes the recorded data recorded on the recording medium based on the storage period.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic diagram showing a schematic configuration of one embodiment of a recording / reproducing apparatus according to the present invention. In FIG. 1, a recording / reproducing apparatus 101 includes a recording block 102,
Reproduction block 103, CPU 104, main memory 10
5. A hard disk drive 106 is provided to record audio information respectively input from a plurality of lines on a recording medium (hard disk drive 106), and when a reproduction request is made, immediately reproduce the requested information. Things.

The recording / reproducing apparatus of this embodiment allows a user to set whether or not to record the contents of a call on a recording medium. Further, the period for recording on the recording medium is arbitrarily set, and when the set period has elapsed, the contents of the call are deleted from the recording medium (the hard disk drive 106), and new information is recorded in the empty area. can do.
That is, the recorded data is managed so that only the contents of the call that need to be recorded are recorded on the recording medium, and more contents of the call are recorded on the recording medium (the hard disk drive 106).

Here, a communication system using the recording / reproducing apparatus of this embodiment will be described. FIG. 2 is a schematic diagram illustrating a schematic configuration of a communication system in which the recording / reproducing device of the present embodiment is used. In FIG. 2, a plurality of external lines from an external exchange 201 are connected to a private branch exchange 202,
The private branch exchange 202 is connected to a plurality of terminals 203 on the private premises. The external exchange 201 is another private branch exchange 204
And the line connection of the external terminal 205. The private branch exchange 202 connects the lines between the terminals 203 on the premises and the lines between the terminals 203 and the external terminals 205 and other private branch exchanges 204 via the external exchange 201. The recording / reproducing device 206 is connected to the line between the private branch exchange 202 and each terminal 203 in the premises, and records the contents of the call of each terminal 203.

The recording / reproducing apparatus of this embodiment will be described. In FIG. 1, a recording / reproducing apparatus 101 includes a plurality of recording blocks 102, and lines of a plurality of channels (CH: Channel) 1 to n of each terminal are connected to the recording block 102, respectively. The recording block 102
Auto Level Controller (ALC: Auto Level C)
ontroller) 107, on / off hook detector 108,
DTMF (Dual Tone Multi Frequency) detector 10
9, controller 110, audio compressor 111, FIFO
A memory 112 is provided.

The ALC 107 adjusts the signal level of the audio information input to the recording block 102 so as to have a constant gain. The audio compressor 111 converts an input analog signal into a digital signal and performs signal compression processing. The FIFO memory 112 sequentially stores the input recording data, and sequentially outputs the input recording data.

The on / off hook detector 108 detects whether the terminal is in an on-hook state or an off-hook state by monitoring a change in DC voltage on the line of the terminal. That is, it is detected whether the terminal is in an off-hook state (a state where the receiver is picked up from the telephone) or the terminal is in an on-hook state (a state where the telephone is placed on the telephone).

The DTMF detector 109 detects a DTMF signal consisting of two frequencies, a high group and a low group, emitted from the telephone of the connected line, and outputs "0" to "9",
It detects which key of “#” or “*” has been pressed, and outputs the result to controller 110.

The controller 110 controls the process of recording the contents of the call based on the detection result from the on / off hook detector 108. That is, when the on-off hook detector 108 detects the off-hook state, the recording process of the call content is started, and when the on-hook state is detected, the recording process ends. Further, it controls the compression processing of the speech compressor 111 into the contents of the call and the control of writing the recording data to the FIFO memory 112. Also, the controller 110
Is provided with a memory area 113 for temporarily storing a DTMF signal detected by the DTMF detector 109, and outputs a DTMF signal stored in the memory area based on control from a CPU described later.

These ALC 107, on / off hook detector 108, DTMF detector 109, controller 1
10, a recording block 102 including a voice compressor 111 and a FIFO memory 112 are connected to a CPU 104, a main memory 105, a hard disk
It is connected to the drive 106 and the like.

The CPU 104 transfers recording data from the recording block 102 to the main memory 105, transfers recording data from the main memory 105 to the hard disk drive 106, and records from the main memory 105 or the hard disk drive 106 to the reproduction block 103. Controls data transfer and the like. Also, based on a DTMF signal stored in a DTMF memory area 115 of a main memory, which will be described later, the DTM signal generated at the end of the off-hook state of the line
Control is performed to select a TMF signal, add it to the recording data, and record it on the hard disk drive 106. In addition, data management such as deletion of the recorded data is performed based on the recording retention period of the recorded data recorded on the hard disk drive 106.

The main memory 105 stores each recording block 1
02 temporarily stores the recording data read from the
Based on the control of 104, a fixed amount of recording data is stored. Further, a DTMF memory area 115 for temporarily storing a DTMF signal from the controller 110 of the recording block 102 is provided.

A hard disk drive 106, which is a recording / reproducing unit, records the recording data transferred from the main memory 105 on a recording medium under the control of the CPU 104. In addition, the recording data whose recording storage period has elapsed is deleted and new recording data is recorded according to a call classification code set using a DTMF signal described later. At the time of the reproduction request, the recording data requested to be reproduced is read out from the recording medium and output.

The reproduction block 103 is a FIFO memory 1
16, an audio expander 117, and an amplifier 118.
The FIFO memory 116 is controlled by the CPU 104
Main memory 105 or hard disk drive 10
6 is to temporarily store the transferred reproduction data read from 6. The audio expander 117 performs a signal expansion process on the reproduced data to convert the digital data into an analog signal. Amplifier 118 amplifies the analog signal.

Next, a method of using the DTMF signal in the recording / reproducing apparatus 101 of this embodiment will be described. In the present embodiment, the management state of the call content is determined based on the DTMF signal input by the user. FIG. 3 is a diagram for explaining a DTMF signal in the recording / reproducing apparatus of the present embodiment. FIG. 4 is a diagram for explaining a call classification code in the recording / reproducing apparatus of the present embodiment. As shown in FIG.
In the DTMF signal, “0” to “9” are numerical values input, “#” is determined, and “*” is clear. And "0"-"9"
Is a two-digit code indicating the call classification code as shown in FIG. That is, when the "#" key is pressed after the "0" to "9" keys are pressed at the terminal, the numerical value is determined as the call classification code. When the "*" key is pressed, the numerical value is cleared.

The call classification code sets whether or not to record the contents of the call on the hard disk drive 106 and, as shown in FIG. 4, sets a period for recording and saving. For example, when the call classification code is “11”, it means that the contents of the call are stored for one day (24 hours). If the user does not enter the call classification code, a call classification code of “14” is set as a default value, and the contents of the call are stored for 30 days. When the call classification code is “00”, the contents of the call are not recorded.

That is, it is possible to set how long the contents of a call are stored in the hard disk drive 106 according to the user's judgment. For example, if the content of the call is important content related to product orders or contracts,
The call contents are set to be stored in the hard disk drive 106 for one year (365 days). In addition, in the case of a business contact on the premises or a wrong call, it is possible to set so as not to record the contents of the call or to save it for a short time (one day).

Here, the call classification code "00" does not record the contents of the call. However, in order to prevent the case where the contents of the call are not recorded due to an error in pressing a button when inputting the call classification code. In the main memory 105 or the hard disk drive 106, the data is stored for a fixed time (for example, 12 hours). And there is no access to the recording data from the user,
After a certain period of time, the contents of the call are stored in the main memory 10
5 or from the hard disk drive 106.

Next, the recording operation in the recording / reproducing apparatus 101 will be described. In FIG. 1, the signal of the channel 1 is transmitted to the ALC 107 and the on / off hook detector 10 of the recording block 102 in the recording block 102.
8. Input to the DTMF detector 109. The on / off-hook detector 108 monitors a change in the DC voltage on the channel 1 line from the input signal, so that the terminal is in an on-hook state where the terminal is not connected to the line or the terminal is connected to the line. It detects whether it is in an off-hook state and outputs a detection result to the controller 110.

When the on / off hook detector 108 detects that the terminal is connected to the line, the controller 1
Reference numeral 10 indicates to the CPU 104 that the line of the channel 1 is connected and recording of the contents of the call is started. The recording block 109 starts recording the content of the call.

The ALC 107 adjusts the level of the input signal so as to have a constant gain.
Output to The voice compressor 111 converts the content of the call into a digital signal, performs compression processing, and converts the
Output to the IFO memory 112. FIFO memory 112
After a certain amount of recorded data is stored in the main memory 10 under the control of the CPU 104,
5. Transfer the recorded data to 5.

On the other hand, the DTMF detector 109 detects a DTMF signal having two frequencies of a high group and a low group generated from the terminal of the connected line, and outputs "0" to "9";
It detects which key of “#” or “*” has been pressed, and outputs the detection result to the controller 110. The controller 110 generates a D while the line is connected.
The TMF signal is stored in the memory area 113, and the DTMF signal is transferred to the DTMF memory area 115 of the main memory 105 together with the recording data under the control of the CPU 104.

This DTMF signal is, as described above,
The “#” key indicates confirmation, the “*” key indicates clear,
2 out of “0” to “9” immediately after the “#” key is pressed
The call classification code is represented by a digit number, and the controller 1
Ten memory areas 113 store the call classification codes.

The CPU 104 reads the recording data from the FIFO memory 112 of the recording block 102 at regular intervals, and writes the recording data to the main memory 105 as recording data in a constant format. At this time, the FIFO memory 11
2 and the controller 1
The call recording code stored in the ten memory areas 113 is also read out and written into the DTMF memory area 115 of the main memory 105.

When a predetermined amount of recorded data is stored in the main memory 105, the CPU 104 writes management information such as a channel number and date and time information together with the recorded data to the hard disk drive 106 as data in a predetermined file format.

Thus, the recording process of the contents of the call is performed. On / off hook detector 1 for recording block 102
When 08 detects that the line has been disconnected, it outputs a line disconnection to the controller 110. Controller 110
Notifies the CPU 104 that the line has been connected, and ends the recording process.

When the recording process is completed, the recorded data remaining in the FIFO memory 112 is stored in the main memory 10.
5 is read. Further, the call classification code detected by the DTMF detector 109 last before the line stored in the memory area 113 of the controller 110 is disconnected is transferred to the DTMF memory area of the main memory 105.

The CPU 104 adds the call classification code detected by the DTMF detector 109 last before the line stored in the DTMF memory area is disconnected to the management information, and together with the recorded data in the main memory 105, Transfer to the drive 106 and record on the recording medium. In this way, the contents of the call are recorded.

Next, the reproducing operation will be described. If the recording data requested to be reproduced based on the channel number and the date and time information is left in the main memory 105 just after recording, the CPU 104 reads the recording data from the main memory 105 and reads out the FIFO data in the reproduction block 103.
Write to memory 116. The recorded data is sequentially read out, subjected to expansion processing and digital / analog conversion by the audio expander 117, then amplified by the amplifier 118, and reproduced and output.

If the recording data requested to be reproduced is recorded on the hard disk drive 106, the CP
The U104 searches the directory information based on the channel number and the date and time information, reads out the desired recording data, transfers the data to the FIFO memory 116 of the reproduction block 103, performs expansion processing, and performs reproduction.

Next, how call data recorded on the hard disk in a file format is managed will be described. FIG. 5 is a flowchart showing a data management process in the recording / reproducing apparatus of this embodiment. In the hard disk drive 106, management information is added to the recorded data of the call content and recorded. As described above, the validity period from the recorded date and time is set in the call classification code of the management information of each file.

In FIG. 5, the CPU 104 reads the date and time information and the call classification code for each recorded file at regular time intervals (step 501).

The read date and time information is compared with the current date and time (step 502), and it is confirmed from the period from the recording time and the expiration date obtained from the call classification code whether or not the file has passed the expiration date. (Step 503).

If the period from the recording of the file has expired, the directory information on the hard disk is invalidated in the hard disk drive (step 504). This means that the file has been deleted on the hard disk,
From the next time, it is assumed that no data is recorded at that location, and new data is overwritten.

If the period from the recording of the file has not passed the expiration date, the CPU searches for the next file, repeats the processing of steps 501 to 505, and returns all the data recorded on the hard disk drive. The file is processed (step 505). When the process is performed on all the files, the process ends.

In the file management processing described above, a list of files whose expiration date has been exceeded may be created, and the user may be checked for file deletion at regular time intervals. This can result in accidental deletion of files,
This eliminates the need to delete files needed after recording.

This file management process is executed in parallel with the recording operation and the reproduction operation, and by performing the process at regular intervals, the telephone call file can be automatically managed.

As described above, according to the recording / reproducing apparatus of this embodiment, it is possible to record the contents of a call on a plurality of lines on a recording medium, and to perform the reproducing process simultaneously with the recording process. Then, the contents of the call are recorded on the recording medium for a period set by the user, and after the expiration date, the file is automatically deleted from the recording medium. As described above, unnecessary data can be deleted and new data can be overwritten. Therefore, even if the recording medium has a fixed capacity, it is possible to record more call contents required by the user.

Further, since the contents of a call for a long period can be effectively recorded, the number of hard disk drives in the recording / reproducing apparatus does not need to be increased, and the cost can be reduced.

Further, in the recording / reproducing apparatus of this embodiment,
When changing the management data of the call content recorded on the hard disk, it is possible to change the call classification code by searching the call data from the channel number, date and time information and the like using a personal computer or the like. This eliminates the need to delete data that is needed after recording.

Further, in the recording / reproducing apparatus of this embodiment,
After the recording of the call is completed, a return call for confirming the determined expiration date may be made to confirm the call classification code. Further, the call classification code of the call may be displayed on the terminal. By confirming such a call classification code, erroneous input of a call confirmation code by the user can be eliminated.

[0058]

According to the present invention, it is possible to arbitrarily set whether or not the user records the contents of a call and how long the contents of the call are stored. A recording / reproducing apparatus capable of performing efficient and advanced data management by automatically or manually performing data arrangement such as deletion of unnecessary recorded data by setting a storage period of recorded data by a user. Can be realized.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a schematic configuration of one embodiment of a recording / reproducing apparatus of the present invention.

FIG. 2 is a schematic diagram illustrating a schematic configuration of a communication system in which the recording / reproducing device of the present embodiment is used.

FIG. 3 is a diagram for explaining a DTMF signal in the recording / reproducing apparatus of the embodiment.

FIG. 4 is a diagram for explaining a call classification code in the recording / reproducing apparatus of the embodiment.

FIG. 5 is a flowchart illustrating data management processing in the recording / reproducing apparatus of the present embodiment.

FIG. 6 is a schematic diagram showing a schematic configuration of a conventional recording / reproducing apparatus.

[Explanation of symbols]

101 recording / reproducing device, 102 recording block, 1
03 Reproduction block, 104 CPU, 105
Main memory, 106 hard disk drive,
107 ALC, 108 on-off hook detector, 109 DTMF detector, 110 controller, 111 voice compressor, 112 FIFO memory, 113 memory area, 114 bus 115 ・
DTMF memory area, 116 FIFO memory, 1
17. Voice expander, 118 Amplifier 201 External switch, Private branch exchange 203
Terminal 204, other private branch exchange 205, external terminal 206 recording / reproducing device 601 recording / reproducing device 602 recording block 6,
03..reproduction block, 604..CPU, 605 ..
Main memory, 606 first drive unit, 607
2nd drive unit, 608 ALC, 609 voice compressor, 610 on-off hook detector, 611
Controller, 612 FIFO memory, 613
FIFO memory, 614 ... voice expander, 615 ... amplifier

Claims (2)

[Claims] 1. A recording block connected to each line of a plurality of terminals for compressing the contents of a call on the line and outputting it as recorded data, a main memory for storing a predetermined amount of the recorded data output from the recording block, A recording / reproducing unit that records the recording data stored in the main memory on a recording medium, and performs control to record the recording data of the recording block in the recording / reproducing unit via the main memory and the main memory or CPU (Cent) for controlling reproduction of the recorded data recorded in the recording / reproducing unit
ral processing unit), an on / off hook detector for detecting whether the terminal is in an on-hook state or an off-hook state, and a DTMF (Dual Tone Multi Frequency) signal generated by the terminal. A DTMF detector, wherein when the on / off-hook detector detects an off-hook state, recording of the contents of a call is started, and the DTMF detected by the DTMF detector is detected.
A controller for performing a control of adding a signal to the recording data and outputting the recording data, wherein the CPU adds the DTMF signal generated last when the terminal is in an off-hook state to the recording data and records the DTMF signal on the recording medium. A recording / reproducing apparatus which controls the recording / reproducing unit and manages the recorded data recorded on the recording medium based on a recording / retention period of the communication content set by the DTMF signal. 2. The recording / reproducing apparatus according to claim 1, wherein the CPU deletes the recorded data recorded on the recording medium based on the storage period.