JP2000338997A - Voice recording and regenerating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To precisely and efficiently perform a data management with addition of date information by adding, to a voice data whose date information is judged to be of the previous day, prescribed information showing the past data. SOLUTION: A recording medium records a number of voice files having a header 111 and a voice data area 112. A system control part reads the header 111 of the voice file of the recording medium and compares the present date with the schedule date of a date data 111a in the header 111. When the previous day data is judged, a flag 1 showing the past schedule is set in a set information 111c. When the flag 1 is not set in the set information 111c, the future schedule is judged. When the flag 1 is set in the set information 111c, and it is judged that the difference between the present date and the schedule date of the date data 111a exceeds a preset erasing period, the corresponding voice file is erased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio recording / reproducing apparatus capable of managing a schedule using audio data.

[0002]

2. Description of the Related Art Heretofore, there has been known an audio recording / reproducing apparatus which has a calendar function and can manage a schedule for each date using audio data.

[0003] In such an audio recording / reproducing apparatus, by selecting a desired date in a calendar, audio data can be recorded or reproduced as a schedule for the selected date.

[0004] In recent audio recording and reproducing apparatuses, in order to minimize the memory capacity and reduce the economic burden, a method of performing monthly management on a yearly basis without using year data for schedule management. Is used, and in order to prevent a finite memory capacity from being filled with a schedule, the current date data is compared with the date data of the schedule, and a past schedule that has passed a certain time or more is deleted from the comparison result. Like that.

[0005]

However, if management is performed on a monthly basis in units of one year without using year data for schedule management, it is determined whether the recorded schedule is past or future. In addition to being indistinguishable,
Since the past schedule and the scheduled date of the future schedule cannot overlap, if the period until the past schedule is deleted is set to be long, there is a problem that the period in which the future schedule can be set is shortened. . In addition, the inability to overlap dates of past schedules and future schedules has a problem that schedules one year ahead cannot be managed.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an audio recording / reproducing apparatus which can perform data management with past and future date information added thereto accurately and efficiently. I do.

[0007]

According to the first aspect of the present invention,
An audio recording and reproducing apparatus capable of adding date information to recorded audio data and managing the audio data in file units,
Date management means having a calendar function and capable of date management, and whether date information added to audio data is one day ago each time the date managed by the date management means is updated every day And predetermined information adding means for adding predetermined information indicating that the date information is past data to the audio data determined to be one day ago. .

According to a second aspect of the present invention, in the first aspect of the invention, of the audio data to which predetermined information indicating past data is added, date information that is a predetermined period or more before the current date is included. It is characterized by having control means for automatically erasing the added audio data.

A third aspect of the present invention is characterized in that, in the first aspect of the present invention, there is provided an erasing period setting means capable of arbitrarily setting the predetermined period.

As a result, according to the first aspect of the present invention,
Depending on whether or not the predetermined information is added, it is possible to reliably distinguish whether the recorded audio data is past data or future data, and it is possible to manage past data and future data with overlapping dates.

According to the second aspect of the present invention, data that has passed this period can be automatically deleted based on a preset period, thereby preventing unnecessary data from remaining unnecessarily. it can.

Further, according to the third aspect of the present invention, the data erasing period can be set arbitrarily, so that data management optimal for each person's usage can be performed.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic configuration of a recording / reproducing apparatus to which the present invention is applied. In the figure, reference numeral 1 denotes a microphone, which is connected to a digital signal processing unit 5 via an amplifier 2, a low-pass filter 3, and an A / D converter 4. Further, a speaker 9 is connected to the digital signal processing unit 5 via a D / A converter 6, a low-pass filter 7, and an amplifier 8.

A system controller 10 is connected to the digital signal processor 5, and a recording medium 11 is connected to the digital signal processor 5 and the system controller 10.

The recording medium 11 is for recording voice data input from the microphone 1, and may be a built-in type or a detachable memory card. In the case of the built-in type, the recording medium 11 is directly connected to the system control unit 10, In the case of a memory card, it is attached to the audio playback device
It is connected to the system control unit 10.

In this case, the recording medium 11 records a large number of audio files having a header 111 and an audio data area 112 as shown in FIG.
Is composed of 511 bytes as a whole, as shown in FIG.
The byte is used as the file length 111b, and the next one byte is used as the setting information 111c.
1c uses one bit of one byte as a flag indicating the past. This flag is set to "1" when the date is updated and the date data 111a becomes equivalent to the past before today.

An operation button 12 is connected to the system control unit 10 in addition to the recording medium 11, and a display 14 is connected via a display drive circuit 13.

The operation button 12 includes a recording button REC, a reproduction button PL
AY, a stop button STOP, an increment button +, a decrement button-, a setting button SEND, and the like are provided.

The system control unit 10 includes a RAM 101 having a calendar function for managing month and day in one year unit, a management function for managing voice data as a message for each date, and a current date and a schedule date. In addition to the comparison function for comparison, control of digital processing in the digital signal processing unit 5 according to operation of each button with the operation button 12,
It has a function of controlling the reading and writing of data from and to the recording medium 11 and controlling the display drive circuit 13 to display various information such as the operation mode and the current date and time on the display 14.

Next, the operation of the embodiment configured as described above will be described.

In this case, when a battery (not shown) is set, the main flow shown in FIG. 3 is executed.

First, when the battery is set and power is supplied to the system control unit 10, in step 301, initial settings such as external conditions of the system control unit 10 and conditions for reading and writing audio data on the recording medium 11 are performed. .

Next, at step 302, clock adjustment is performed. To set the clock at this time, first, the setting button SEND
Is operated to display "hours and minutes" on the display 14, while only "hours" is blinked, and the increment button + or the decrement button-is operated to match the current time "hours". By operating the button SEND, only the "minute" is made to blink, and the increment button + or the decrement button-is operated to match the "minute" of the current time.

From this state, in step 303, clock counting is started. The clock count counts the time in day units. When a date change is detected by this count, the date of the calendar function is automatically incremented in the RAM 101 of the system control unit 10.

Next, when the user wants to set the erasing period of the past schedule, he operates the setting button SEND. Then
Through steps 304, 305, and 306, step 3
At 07, the operation of the setting button SEND is determined, and
At 08, the option setting mode is set. In this option setting mode, the erasing period (for example, three months) is set by operating the increment button + or the decrement button-.

Thereafter, in step 304, a change in the date is detected. In this case, the presence or absence of a date change is detected based on the clock count in step 303. If there is no change in date, the operation of the recording button REC is determined in step 305, and the operation of the play button PLAY is determined in step 306.

Here, at step 305, the recording button REC
Is determined, in step 309, a recording mode is set by the system control unit 10, and a recording process is executed. In this case, when a sound is input to the microphone 1, the input sound is amplified by the amplifier 2, and unnecessary frequency domain components are cut by the low-pass filter 3 to prevent the occurrence of aliasing noise, and the A / D converter 4
Is converted into a digital signal, and is input to the digital signal processing unit 5, where it is subjected to compression processing under the control of the system control unit 10, sent to the system control unit 10, and selected by the recording medium 11 based on a predetermined format. Recorded corresponding to the date.

At step 306, a play button PLAY
Is determined, in step 310, the reproduction mode is set by the system control unit 10, and the reproduction process is executed. In this case, digital audio data corresponding to the selected date recorded on the recording medium 11 is read out by the system control unit 10 and input to the digital signal processing unit 5, where the decompression process is performed under the control of the system control unit 10. The signal is further converted into an analog signal by a D / A converter 6, amplified by an amplifier 8 via a low-pass filter 7, and output from a speaker 9.

On the other hand, if a change in the date is detected in step 304, a comparison between the new schedule and the old schedule is performed in step 311. In this case, as shown in FIG.
01, the header 1 of the first audio file in the storage medium 11
11 is read, and it is determined in step 402 whether the data is yesterday. In this case, the current date is compared with the schedule date of the date data 111a in the header 111. If it is determined from the result of the comparison that the data is yesterday, in step 403, a flag “1” indicating a past schedule is set in the setting information 111c.

In step 404, it is determined whether or not all the audio file processes have been completed. If all the audio file processes have not been completed, the process returns to step 401 to read the header 111 of the next audio file. Become.

On the other hand, if it is determined in step 402 that the data is not yesterday's data, then in step 404, header 1
It is determined whether or not the flag “1” has already been set in the setting information 111c of No. 11. Here, if the flag “1” is not set, it is determined that the schedule is a future schedule, and the process directly proceeds to step S404. If it is determined that all the file processes are not completed, the process proceeds to step S401.
To read the header 111 of the next audio file. If it is determined in step 405 that the flag “1” is set in the setting information 111 c in the header 111, it is determined in step 406 whether the audio file is older than a set period. In this case, the current date is compared with the schedule date of the date data 111a in the header 111, and it is determined whether or not the difference between them is past a preset erasing period. Here, if it is determined that the erasing period has not passed, at step 404,
If it is determined that all file processing has not been completed,
Returning to step 401, the header 1 of the next audio file
11 is read. If it is determined that the erasing period has passed, in step 407, the corresponding audio file is erased. If it is determined in step 404 that all file processing has not been completed, the process returns to step 401 to read the header 111 of the next audio file.

Thereafter, when it is determined in step 404 that all file processes have been completed, the schedule new / old comparison process ends, and the process returns to the flow shown in FIG.

In the operation shown in FIG. 3, when the stop button STOP is operated during the execution of each of the reproduction and recording processes, or when the current operation position reaches the end position or the end position of the recording medium 11, It exits from each process and returns to step 303 forcibly.

Accordingly, in this way, immediately after the date managed by the calendar function is updated, the date data 111a of the header 111 of all the audio files on the recording medium 11 is read.
Is searched, and if it is determined that the message is one day ago, header 1
Since a flag indicating that the message is a past message is set in 11, it is possible to reliably discriminate whether the recorded schedule is a past one or a future one based on the presence or absence of the flag. As a result, the date of the past schedule and the date of the future schedule can be overlapped and managed, so that the inconvenience of shortening the setting period of the future schedule can be avoided, and the schedule management one year ahead is also performed. Can be.

Further, based on a preset erasing period,
Since the files that have passed this period can be automatically deleted, it is possible to prevent the unnecessary schedule from remaining unnecessarily, and to effectively use the memory capacity.

Further, since the erasing period of the file can be set arbitrarily, the schedule management optimal for the usage of each person can be performed.

In the above-described embodiment, the schedule comparison process is executed immediately after the date managed by the calendar function is updated, but not immediately after the date is updated. May be a period until the date is updated, that is, the new and old schedule may be compared each time the date is updated.

[0039]

As described above, according to the present invention, it is possible to provide an audio recording / reproducing apparatus capable of performing data management to which past and future date information is added accurately and efficiently.

An audio recording / reproducing apparatus can be provided.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing a schematic configuration of a recording medium used in one embodiment.

FIG. 3 is a flowchart for explaining the operation of the embodiment;

FIG. 4 is a flowchart for explaining the operation of the embodiment;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Microphone 2 ... Amplifier 3 ... Low-pass filter 4 ... A / D converter 5 ... Digital signal processing unit 6 ... D / A converter 7 ... Low-pass filter 8 ... Amplifier 9 ... Speaker 10 ... System control unit 101 ... RAM 11 ... Recording medium 111 ... Header 112 ... Sound data 111a ... Date data 111b ... File length 111c ... Setting information 12 ... Operation button 13 ... Display drive circuit 14 ... Display REC ... Record button PLAY ... Play button STOP ... Stop button SEND ... Setting button + ... Increment button -... decrement button

Claims (3)

[Claims] 1. An audio recording / reproducing apparatus capable of adding date information to recorded audio data and managing the audio data on a file-by-file basis, comprising: a date management means having a calendar function and capable of date management; Means for judging whether the date information added to the audio data is one day ago each time the date managed by the means is updated one day, and that the date information is one day ago Predetermined information adding means for adding predetermined information indicating past data to the judged voice data. 2. A control means for automatically deleting audio data to which date information earlier than a predetermined period from a current date is added, out of audio data to which predetermined information indicating past data is added. The audio recording / reproducing apparatus according to claim 1, further comprising: 3. The audio recording / reproducing apparatus according to claim 2, further comprising an erasing period setting unit that can arbitrarily set the fixed period.