JP4174838B2 - Recording / playback device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording / reproducing apparatus for recording data on a recording medium and reproducing the data recorded on the recording medium.
[0002]
[Prior art]
In general, in a recording / reproducing apparatus that records / reproduces various data using a recording medium, there is a problem that it becomes difficult to search for target data during reproduction as the number of records on the recording medium increases. .
[0003]
For example, in a recording / reproducing apparatus such as an audio tape recorder or a video tape recorder using a magnetic tape as a recording medium, physical data is necessarily recorded on the magnetic tape in the order of recording or recording (hereinafter referred to as recording). Will be recorded. And as the number of records increases, more time is required for searching the data recorded on the magnetic tape during playback. For this reason, searching by high-speed playback and automatic cueing by detecting blank time of audio data are required. We have dealt with such methods as search and automatic skip search by adding an index mark to the beginning of the target data. However, in a recording / reproducing apparatus using a magnetic tape as a recording medium, it is physically unacceptable to detect the target data and reproduce it instantaneously by any of these methods because of the necessity of feeding / rewinding the tape. It was possible.
[0004]
On the other hand, a recording / reproducing apparatus using a magnetic disk or semiconductor memory as a recording medium can perform random and high-speed access to a specific address. Is possible.
[0005]
[Problems to be solved by the invention]
By the way, in such a recording / reproducing apparatus capable of random and high-speed access to a specific address, it is not always necessary to record data in the order of recording or the like. Also, data is recorded on the recording medium in the order of recording, etc., and management information such as index number, head address, and recording time is recorded in the management area of the recording medium for each data in the order of recording. It will be. For this reason, even in such a recording / reproducing apparatus, the reproduction order at the time of data reproduction is performed in the order of the recorded data. If the number of records on the recording medium increases, it takes time to search for the target data. The above-described problem has not been solved.
[0006]
Some devices can change the order of data to be reproduced by rewriting the index number recorded in the management area after recording. However, in such a device, when the order of the data to be reproduced is changed, it is necessary to specify concretely that the data is moved to one data before or after. Further, in such a device, after recording data, a special mode must be entered and the above-mentioned specific designation must be made, and the reproduction order of the data to be recorded is set in advance before recording. I couldn't do anything. Therefore, this data movement operation is complicated and time-consuming.
[0007]
In addition, in some devices equipped with a liquid crystal display panel, there is a type in which a character index (data name) is input and the data name is displayed on the liquid crystal display panel to facilitate data retrieval. Since the input operation is complicated and time-consuming, it is actually difficult to use.
[0008]
Recently, there has been provided a recording / reproducing apparatus called an IC recorder that can easily record / reproduce voices in the sense that the contents of a meeting, lecture, etc. are written on a memo sheet. The recording / reproducing apparatus uses a flash memory as a recording medium, and at the time of recording, records one audio signal from the recording start to the recording end as audio data in the data area of the flash memory. Management information such as an index number of audio data is recorded in a management area of the flash memory. On the other hand, at the time of reproduction, referring to this management area, the audio data is reproduced one by one from the smallest (smaller) index number, and the audio is output.
[0009]
Also in such a conventional IC recorder, a plurality of audio data is assigned a lower index number as it is recorded earlier, and audio signals are sequentially input from the oldest audio data during reproduction. Was supposed to be played.
[0010]
However, in a recording / reproducing apparatus such as an IC recorder, in general, old audio data is often unnecessary over time, and therefore new audio data is often more important. On the other hand, data that is no longer important can be deleted each time. However, there is data that is unclear whether it can be deleted, and there are cases where the erasing operation is troublesome. Therefore, in the conventional IC recorder in which the data is stored in the flash memory in a cobblestone mixed state, the audio signal is reproduced in order from the oldest audio data at the time of reproduction. However, it took a lot of time and effort to search, and it was not easy to use, and improved operability was required.
[0011]
The present invention has been proposed in view of such circumstances, and an object of the present invention is to provide a recording / reproducing apparatus that improves operability during reproduction by adopting a reproduction order according to the importance of data. And
[0012]
[Means for Solving the Problems]
  In order to solve the above problems, a recording / reproducing apparatus according to the present invention provides:A plurality of data stored for each of a plurality of usage-specific files, an index number indicating the reproduction order of the data for each data stored in each file, a reproduction priority of the data, and storage of the data A storage medium storing management data for managing the area, a file designating unit for designating a predetermined file among the plurality of files, and the input data in the file designated by the file designating unit Recording means for recording the data so as to be stored and recording the index number of the data as the management data; and reproducing means for reading the data from the file based on the index number and reproducing the data by referring to the management data; Priority for setting the above priority for data stored in a given file Determining means, an instruction input means for giving an instruction to the file specifying means and the priority setting means, and an index number of data stored in the predetermined file based on the priority set by the priority setting means. Rewriting means for rewriting the management data so as to be changed. Then, when the predetermined index number is selected based on the input to the instruction input unit, the reproducing unit displays the selected predetermined index number, the index number of the management data, and the storage area. With reference, the data of the predetermined index number is read from the file and reproduced.
[0013]
According to the recording / reproducing apparatus, the management area of the recording medium is rewritten so as to change the index number of each data in accordance with the priority set by the priority setting means. Each audio data is reproduced by the reproducing means.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of a recording / reproducing apparatus according to the present invention will be described in detail with reference to the drawings. In the embodiment described below, an audio signal from a microphone is converted into audio data and written to a semiconductor memory as a recording medium, and audio data stored in the semiconductor memory is read out from a speaker. The recording / reproducing apparatus of the present invention is applied to an IC recorder that outputs sound based on audio data. This IC recorder is capable of verbally storing necessary items as voice data, instead of a user writing predetermined items on a memo sheet or the like.
[0015]
As shown in FIG. 1, the IC recorder 1 converts a sound signal from the microphone 11 into sound data and stores the sound data in the semiconductor memory 9 and the sound data stored in the semiconductor memory 9. A playback unit 20 that reads out and converts the audio signal to drive the speaker 24, a control unit 30 that controls the recording unit 10 and the like, a display unit 40 that displays an operation state, an operation procedure, and the like, and various operations performed by the user And an operation unit 50 for giving an instruction to the control unit 30 by performing the above.
[0016]
The recording unit 10 includes an amplifier 12 that amplifies the audio signal from the microphone 11 and an automatic gain controller (hereinafter referred to as AGC) 13 that sets the level of the audio signal amplified by the amplifier 12 to an appropriate level. And an encoder 14 that converts the audio signal from the AGC 13 into audio data, and a buffer memory 15 that temporarily stores the audio data from the encoder 14.
[0017]
In the recording unit 10, sound input from the microphone 11 is converted into an audio signal and supplied to the amplifier 12, and the amplifier 12 amplifies the audio signal and supplies it to the AGC 13. Then, the AGC 13 amplifies the audio signal amplified by the amplifier 12 so that the level becomes an appropriate level, and supplies the amplified signal to the encoder 14.
[0018]
Since the audio signal has a strong temporal correlation, the encoder 14 encodes the audio signal with a small amount of data by, for example, adaptive differential pulse code modulation (hereinafter referred to as ADPCM), and converts the audio data. The audio data is generated and supplied to the buffer memory 15.
[0019]
The buffer memory 15 temporarily stores the audio data supplied from the encoder 14 and supplies it to the semiconductor memory 9.
[0020]
In the semiconductor memory 9, for example, an electrically erasable / electrically erasable programmable read-only memory (hereinafter referred to as an EEPROM) is turned off. However, the memory content of the memory element is constituted by a non-volatile flash memory that is retained without being erased. The semiconductor memory (hereinafter referred to as a flash memory) 9 stores the audio data supplied from the buffer memory 15 in the data area 9a, and also stores the index number, storage area, stored time, priority, etc. of each audio data. Management information (hereinafter referred to as TOC information) is stored in the management area (hereinafter referred to as TOC) 9b. Specifically, the flash memory 9 has a storage capacity of 4M × 8 bits, for example, and can store audio data corresponding to an audio signal of a predetermined band for about 24 minutes.
[0021]
On the other hand, as shown in FIG. 1, the playback unit 20 amplifies the audio signal from the decoder 21 and the filter 22 that converts the audio data read from the data area 9 a of the flash memory 9 into an audio signal, and the filter 22. And an amplifier 23 to be supplied to the speaker 24.
[0022]
The decoder 21 corresponds to the encoder 14 of the recording unit 10, and decodes the audio data read from the data area 9a, that is, the audio data encoded by the ADPCM method, and generates a so-called PAM signal. . The filter 22 removes a high frequency component of the voice band or higher from the PAM signal and outputs a voice signal. The amplifier 23 amplifies the audio signal supplied from the filter 22 and drives the speaker 24. Thus, the recorded sound is output from the speaker 24.
[0023]
The control unit 30 includes a ROM 31 that stores a program for controlling the operation of the IC recorder 1 and a microcomputer (hereinafter referred to as a CPU) that controls each block by executing the program stored in the ROM 31. ) 32 and a random access memory (hereinafter referred to as RAM) 34 for temporarily storing time, program execution results, and the like.
[0024]
The display unit 40 displays the operation state of the IC recorder 1 and the storage state of audio data based on a control signal from the control unit 30, and illuminates the liquid crystal display panel 41 and the liquid crystal display panel 41. The backlight 42 is provided.
[0025]
The operation unit 50 supplies various input signals to the control unit 30 and gives instructions to the control unit 30 when recording / reproducing audio. The operation unit 50 includes various operation buttons, operation switches, and a jog dial, which will be described later, for the user to operate during recording / reproduction. In the IC recorder 1, various input signals from these operation buttons / switches and the jog dial are supplied to the control unit 30.
[0026]
When detecting an input signal from the operation unit 50, the CPU 32 of the control unit 30 reads out and executes a program corresponding to the input signal from the ROM 31, and controls each block. For example, when an input signal from a recording start button described later is detected, the CPU 32 reads out and executes a program corresponding to recording from the ROM 31, operates the amplifier 12, the AGC 13, the encoder 14, the display unit 40, etc. For example, the temporarily stored audio data is stored in a vacant part of the data area 9 a in the flash memory 9, and the TOC information related to the audio data is written to the TOC 9 b of the flash memory 9. When reproducing audio data, the CPU 32 reads out and executes a program corresponding to the reproduction from the ROM 31, operates the decoder 21, filter 22, amplifier 23, display unit 40, etc., and stores them in the TOC 9 b of the flash memory 9. By referring to the stored TOC information, audio data stored at a predetermined address in the data area 9a is read out and output to the speaker 24 is performed.
[0027]
The CPU 32 controls the writing and reading of audio data to and from the flash memory 9 in this way. For example, the CPU 32 controls to write up to 99 pieces of audio data to the TOC 9b of the flash memory 9 with an index number for identifying each. This index number increases in the order of recording, such that the index number of the first recorded audio data is 01, the index number of the next recorded audio data is 02...
[0028]
Further, during reproduction, the CPU 32 controls to read out corresponding audio data from the data area 9a in ascending order of the index number based on the index number written in the TOC 9b.
[0029]
Further, the CPU 32 includes a priority setting unit 35 and a TOC rewriting unit 36 as shown in FIG. The priority setting unit 35 of the CPU 32 sets a priority (priority) related to the playback order for each audio data stored in the data area 9 a and writes the data related to the priority in the TOC 9 b of the flash memory 9. Further, the TOC rewriting unit 36 of the CPU 32 performs a process of rewriting the index number written in the TOC 9b based on the set priority.
[0030]
FIG. 3 schematically shows the appearance of the IC recorder 1. This IC recorder 1 shown in FIG. 3 is portable, and electrical circuits such as the recording unit 10 and the playback unit 20 described above are mounted inside an exterior casing 2 that is configured to be gripped with a palm. A printed circuit board (not shown) is provided. In addition, the liquid crystal display panel 41 and the speaker 24 described above are disposed on the main surface portion 2 a of the exterior housing 2.
[0031]
In the IC recorder 1, various operation buttons / switches 51 to 57 constituting the operation unit 50 and a jog dial 60 are disposed on the main surface 2 a and each side surface of the exterior housing 2. As a result, the IC recorder 1 can be operated while being gripped with the left hand, and can be used in combination with work such as writing normally performed by the user with the right hand.
[0032]
Here, as the operation buttons, as shown in FIG. 3, a file (FILE) button 51, a menu (MENU) button 52, a priority (PRIORITY) button 53, and a stop (STOP) for stopping recording or the like. A button 54, a recording start (REC) button 55 for starting recording, and an erase (ERASE) button 56 for erasing audio data stored in the flash memory 9 are respectively provided on the exterior casing 2. Arranged on the main surface 2a. In addition, as an operation switch, a slide-type hold switch 57 is attached slightly below the left side surface portion 2 b of the exterior housing 2. The operation unit 50 includes a volume for adjusting the volume of reproduced sound, an earphone jack, and the like, and each is provided on a side surface of the exterior housing 2 although not shown.
[0033]
The file button 51 is a button for switching a file preset in the IC recorder 1. The file mentioned here corresponds to a directory or folder used in a personal computer, and in this embodiment, five types of files are set. The IC recorder 1 can store up to 99 audio data for each file. Each file is identified by displaying different icons on the liquid crystal display panel 41.
[0034]
Here, for example, as shown in FIG. 4, the liquid crystal display panel 41 selectively displays any one of the icons 71, 72, 73, 74, and 75 for the five types of files described above. 70, and an audio data display unit 80 showing information about each audio data stored in any one of the above files. Although not shown, the liquid crystal display panel 41 also has a recording or reproduction time of each audio data, a current date and time, a recording or reproduction in progress, a remaining power supply, an operating state and an operation. Various character information and the like related to the above are displayed.
[0035]
For example, each icon displayed on the icon display unit 70 corresponds to a file in which the icon 71 stores voice data for action, the icon 72 corresponds to a file in which voice data for schedule is stored, and the icon 73 is the first. The icon 74 corresponds to the file storing the second memo voice data, and the icon 75 stores the private voice data that the other person does not want to know. It corresponds to a secret file. In the IC recorder 1, a plurality of files are set for each use as described above, and the sound data is stored in each file, so that the sound data can be arranged according to the use.
[0036]
On the other hand, the audio data display unit 80 includes an index number display unit 81 for displaying the index number of the audio data, and a priority display unit for displaying the priority of reproduction of each audio data by the star marks 82a, 82b, 82c. 82 is provided. In the index number display portion 81, the numerator denominator displays fractions each of which is a two-digit integer, and the number of numerators currently reproducing the number of audio data in which the number of denominators is recorded. Alternatively, it represents the index number of audio data that can be reproduced immediately.
[0037]
In addition, the priority display unit 82 displays the priority of reproduction of each audio data corresponding to the display of the numerator in the index number display unit 81. Specifically, the priority is displayed in a state where all three star-shaped marks 82a to 82c are displayed (hereinafter referred to as a priority 3 state), and in a state where two are displayed (hereinafter referred to as priority 2). There are four stages: a state in which only one is displayed (hereinafter referred to as a state of priority 1), and a state in which no one is displayed (hereinafter referred to as a state of priority 0). In the IC recorder 1, the more this star mark is displayed, the more important the audio data is, and it is indicated that the data should be reproduced with priority. That is, in this embodiment, the priority 3 data has the highest importance, and the priority 0 data has the lowest importance.
[0038]
For example, in the IC recorder 1 shown in FIG. 3, the icon 71 described above is displayed on the icon display unit 70 of the liquid crystal display panel 41, the fraction “02/37” is displayed on the index number display unit 81, and the priority is displayed. The display unit 82 displays all three star-shaped marks. Therefore, in this case, 37 audio data are stored in the file for storing the audio data for action, and the audio data with the index number 02 is being reproduced or is immediately reproducible. Furthermore, it means that the audio data with the index number 02 corresponds to the most important data.
[0039]
The menu button 52 is a button that is pressed to display or change the initial setting of the IC recorder 1. Here, changes in the initial settings include, for example, change of date and time, change of band of voice data to be recorded, change of beep sound when various operation buttons are pressed, presence / absence of output of alarm sound, For example, the sensitivity of the microhorn 11 can be changed. In the IC recorder 1, the priority 0 is uniformly assigned to the recorded audio data with respect to the above-described initial setting of the priority. The initial setting can be changed so that any one of the priorities 1 to 3 is uniformly given to the recorded audio data.
[0040]
The priority button 53 is a button for assigning any of the above-described priorities 0 to 3 to the audio data or changing the priority value assigned to the audio data. In this embodiment, the priority button 53 functions in any case of stopping, reproducing, or recording.
[0041]
In the IC recorder 1, when the priority button 53 is pressed, the priority value of the target audio data can be changed. When this value is changed, the index written in the TOC 9b of the flash memory 9 is changed accordingly. The number is rewritten and changed by the TOC rewriting unit 36 of the CPU 32. Specifically, the index number is changed so that important audio data having a larger priority value is preferentially reproduced. In other words, in this embodiment, the index number of the voice data with priority 3 becomes a young (small) number, and as the priority becomes 2, 1, 0, the index number is changed to become a large number.
[0042]
In this embodiment, the initial setting is such that audio data recorded later has a higher index number between audio data having the same priority. In response to this, the initial setting can be changed so that the audio data recorded later has a smaller index number.
[0043]
The hold switch 57 is a switch for holding the operation or stopped state of the IC recorder 1. When the hold switch 57 is turned on, the IC recorder 1 is in a state where it does not accept operations of the operation buttons 51 to 56, the jog dial 60, and the like.
[0044]
In the IC recorder 1, a part of the jog dial 60 is exposed from a notch 2c formed on the upper side of the left side surface 2b of the exterior housing 2. The jog dial 60 includes a disk-like rotation operation member 61 having a rotation center shaft 62 and an electrode (not shown) attached to the rotation operation member 61. 2 and a part of the rotation operation member 61 faces outward from the notch 2c. The rotation operation member 61 of the jog dial 60 is rotatable in the A and B directions shown in FIG.
[0045]
Further, the rotation operation member 61 of the jog dial 60 has a rotation center shaft 62 movable in the X and Y directions shown in FIG. 3 in the exterior housing 2 and in a normal state, the rotation operation member 61 is moved in the Y direction by a spring (not shown). It is energized. Therefore, the rotation operation member 61 of the jog dial 60 can be rotated in the AB direction and can be pressed in the X direction orthogonal to the rotation center axis 62 by a user operation.
[0046]
The jog dial 60 supplies an input signal corresponding to the rotation angle and the rotation speed to the control unit 30 when the rotation operation member 61 is rotated in the AB direction, and presses the rotation operation member 61 in the X direction. Thus, an input signal corresponding to the pressing time is supplied to the control unit 30. Specifically, in the IC recorder 1, the CPU 32 detects the rotation direction, the rotation angle, and the rotation speed of the rotation operation member 61, or whether or not the rotation operation member 61 is pressed. By detecting whether or not the pressing has exceeded a certain time, a program corresponding to each result is read from the ROM 31 and executed, and each block shown in FIG. 1 is controlled.
[0047]
The jog dial 60 is operated in various cases such as to perform various operations during reproduction or to change the initial setting described above, and is frequently used. For this reason, the jog dial 60 is arranged at the position as described above, so that when the user holds the outer casing with the left hand, the jog dial 60 can be rotated and pressed only with the thumb.
[0048]
In the IC recorder 1 having such a configuration, before recording, for example, when the file button 51 is pressed, the CPU 32 displays any one of the icons 71 to 75 shown in FIG. 4 corresponding to various files on the liquid crystal display panel. The process which displays on the icon display part 70 of 41 is performed. The CPU 32 controls to sequentially display the icons on the icon display unit 70 as the jog dial 60 rotates. Then, by rotating the jog dial 60 to select one of the icons and pressing the jog dial 60, the icon is designated. As a result, the CPU 32 determines in which file the audio data is stored. Prior to recording, the CPU 32 controls the liquid crystal display panel 41 to display various information about the above-described initial setting state by pressing the menu button 52. When changing the initial setting, the jog dial 60 is rotated to select a target item, and the jog dial 60 is pressed. In the IC recorder 1, by this operation, the CPU 32 performs processing for changing the setting of the item.
[0049]
The IC recorder 1 enters a recording start state when the recording start button 55 is pressed. When the user utters a sound toward the microphone 11, the designated address of the data area 9 a in the flash memory 9 is set. Starts writing audio data. When the stop button 54 is pressed, the recording process is canceled, and one piece of audio data is stored in the data area 9a. At this time, under the control of the CPU 32, various information such as a head address, an index number, a recording start time, a recording time, and which file is stored as TOC information is recorded in the TOC 9b of the flash memory 9. Further, the priority setting unit 35 of the CPU 32 records information on priority (information indicating priority 0 in the initial setting) as the TOC information in the TOC 9b.
[0050]
Further, the CPU 32 reads information on the priority of the TOC 9b at the end of the recording, and performs a process of rewriting the description on the index number by the TOC rewriting unit 36 if it is necessary to change the index number. The index number is rewritten for each file described above.
[0051]
Here, a specific example of processing related to priority will be described with reference to the flowchart shown in FIG. Note that this series of processes shown in FIG. 5 is performed as a so-called editing operation in the case where the playback order is changed after all the recording of the audio data is completed. Is called. For ease of understanding, here, in the case of the IC recorder 1 in the state shown in FIG. 3, that is, when the priority of the voice data with the priority number 3 stored in the action file is changed. Will be described with appropriate quotation.
[0052]
In step S1, the CPU 32 waits for detection of an input signal when the priority button 53 is pressed, and proceeds to step S2.
[0053]
In step S <b> 2, the CPU 32 determines whether to change the priority after waiting for an input signal from the operation unit 50. In this case, for example, when the priority button 53 is pressed again, the CPU 32 determines that the process is to be performed, that is, proceeds to step S3, and when another button, for example, the stop button 54 is pressed, NO, that is, the process. It is determined that the process is not performed, and the process ends.
[0054]
In step S3, the CPU 32 reads all the data stored in the TOC 9b of the flash memory 9, that is, the current TOC information. Note that the IC recorder 1 in the state shown in FIG. 3 may read out only the TOC information for the 37 pieces of audio data stored in the action file. The CPU 32 stores the read TOC information in, for example, a free area of the RAM 34.
[0055]
In subsequent step S4, the CPU 32 determines whether or not the priority has been changed.
[0056]
In making this determination, for example, the CPU 32 blinks each star mark 82a, 82b, 82c of the priority display section 82 in the liquid crystal display panel 41 shown in FIG. 4 in advance, and responds to the number of times the priority button 53 is pressed. Change the number of star marks to flash. Specifically, every time the priority button 53 is pressed, the CPU 32 changes the number of star-shaped marks to be blinked in the order of, for example, 1, 2, 3, none, 1,. The display unit 40 is controlled.
[0057]
Further, when the CPU 32 detects an input signal from the priority button 53 continuously for a certain time or more, that is, when the priority button 53 is continuously pressed for a certain time or more, the star mark blinking at that time. It is determined whether the priority has been changed from the number of. If it is determined that the priority has been changed, the process proceeds to step S5. If it is determined that the priority has not been changed, the process proceeds to step S7 assuming that the index number does not need to be changed.
[0058]
In this embodiment, since the priority value of the recorded audio data is 0 by the above-described initial setting, if the priority button 53 is continuously pressed for a certain time or longer, it flashes at that time. If the number of star marks is 1 or more, the process proceeds to step S5, and if it is 0, the process proceeds to step S8. In the IC recorder 1 in the state shown in FIG. 3, since the priority of the audio data of the index number 02 to be changed is 3, when the priority button 53 is continuously pressed for a certain time or longer, If the number of star marks blinking at 0 is 0 to 2, the process proceeds to step S5, and if it is 3, the process proceeds to step S8.
[0059]
In step S <b> 5, the CPU 32 drives the priority setting unit 35 to change the priority value of the corresponding audio data among the TOC information stored in the RAM 34, and updates the TOC information stored in the RAM 34.
[0060]
In the subsequent step S6, the CPU 32 drives the priority setting unit 35 again, so that among the TOC information stored in the RAM 34, the audio data stored in the file belonging to the audio data whose priority value has been changed. Data on priority values and index numbers is read out, and the index numbers of the respective audio data are rearranged in descending order of priority values according to the rules described above. Then, the TOC information in the RAM 34 is updated again based on the newly set index number, and the process proceeds to step S7. In the IC recorder 1 in the state shown in FIG. 3, the priority value and the index number for each of the 37 audio data stored in the action file are read out, and the 37 records are recorded. Will be rearranged.
[0061]
In step S <b> 7, the CPU 32 drives the TOC rewriting unit 36 to rewrite the TOC information of the TOC 9 b of the flash memory 9 based on the TOC information stored in the RAM 34. With the above processing, in the IC recorder 1 in the state shown in FIG. 3, for example, by changing the priority value of the audio data of the index number 02 to 1, the index number is changed to 31, for example. .
[0062]
And CPU32 returns to step S2 after performing the process of step S7, and repeats each process mentioned above. At this time, the CPU 32 is controlled so that the audio data subject to priority change is different from the previous audio data, and at the same time, the other audio data is reproduced in order to make the user confirm this content. That's fine.
[0063]
Thereby, in the IC recorder 1, the priority for each audio data can be changed by operating only the priority button 53.
[0064]
Next, when the recorded audio data is played back by the IC recorder 1, when the file button 51 is pressed, for example, as in recording, the CPU 32 displays one of the icons 71 to 75 corresponding to various files. Processing to display on the icon display unit 70 of the liquid crystal display panel 41 is performed. Then, the jog dial 60 is rotated to select any icon, and the jog dial 60 is pressed to designate the icon. Thereby, the CPU 32 determines which file the audio data stored in is to be reproduced.
[0065]
When the jog dial 60 is further pressed, the CPU 32 performs a process of starting reproduction of the audio data stored in the file. Here, since the audio data is played back in order from the smallest index number, it is played back in descending order of priority, that is, in descending order of importance regardless of the recording time and recording order. It becomes. Therefore, according to the IC recorder 1, important data can be quickly reproduced even when the number of recorded audio data increases, and the searchability and usability of the target audio data are greatly improved.
[0066]
As described above, according to the IC recorder 1, when changing the order of audio data to be reproduced, it is not necessary to enter a special movement operation mode. There is no need to make specific designations later. Further, according to the IC recorder 1, it is possible to easily set the reproduction order of the data to be recorded before recording.
[0067]
In this embodiment, the priority relating to the audio data is set to four levels. However, the number of priority levels is not particularly limited, and the priority is set to three levels or two levels to simplify the configuration and operation. Alternatively, five or more levels may be used to enable finer settings.
[0068]
In this embodiment, only the priority button 53 is used for setting or changing the priority value. However, the present invention is not limited to this, and for example, the setting using the jog dial 60 is also possible. Or you may comprise so that a change may be performed.
[0069]
【The invention's effect】
As described above in detail, according to the recording / reproducing apparatus of the present invention, the management area of the recording medium is rewritten so as to change the index number of each data according to the priority set by the priority setting means. Therefore, at the time of reproduction, each audio data is reproduced by the reproducing means in the reproduction order corresponding to the priority. As a result, the data recorded on the recording medium can be easily searched and rearranged, and the usability is improved.
[Brief description of the drawings]
FIG. 1 is a circuit configuration diagram of an IC recorder to which the present invention is applied.
FIG. 2 is a diagram for explaining a priority setting unit and a TOC rewriting unit provided in a CPU.
FIG. 3 is a diagram schematically showing the appearance of an IC recorder.
FIG. 4 is a diagram for explaining a configuration of a liquid crystal display panel.
FIG. 5 is a flowchart showing an example of processing when changing the priority of audio data.
[Explanation of symbols]
1 IC recorder, 2 exterior housing, 9 flash memory, 10 recording unit, 20 playback unit, 30 control unit, 32 CPU, 35 priority setting unit, 36 TOC rewriting unit, 40 display unit, 41 liquid crystal display panel, 50 operation unit, 53 priority button

Claims (11)

A data store a plurality for each of the applications by a plurality of files, each data priority and the data of the index number and the data reproducing indicating a reproduction order of the data stored in each file A recording medium storing management data for managing the storage area ;
A file specifying means for specifying a predetermined file among the plurality of files,
Recording means for recording the index number of the data as the management data together with the data input for recording to be stored in the designated file in the file specification means,
Reproducing means for reading out the data from the file based on the index number with reference to the management data and reproducing the data,
On the stored data in a predetermined file, and priority setting means for setting the priority,
An instruction input means for giving an instruction to the file specifying means and the priority setting means;
Rewriting means for rewriting the management data so as to change the index number of the data stored in the predetermined file based on the priority set by the priority setting means ,
The reproducing means refers to the selected predetermined index number, the index number of the management data, and the storage area when a predetermined index number is selected based on an input to the instruction input means. A recording / reproducing apparatus that reads out and reproduces data of the predetermined index number from a file . A display means for displaying information representing each file;
2. The recording / reproducing apparatus according to claim 1, wherein the file designating unit designates a file by selecting information representing the file based on an input from the instruction input unit . The instruction input means is a jog dial,
The file specification means selects a file by rotating the jog dial, a recording and reproducing apparatus according to claim 2, characterized in that to specify the file by pressing the jog dial.   2. The recording / reproducing apparatus according to claim 1, wherein the instruction input means can set priority for the data being recorded when the input data is recorded.   2. The recording / reproducing apparatus according to claim 1, wherein the instruction input means can set priority for the data being reproduced when the recorded data is reproduced.   2. The recording / reproducing apparatus according to claim 1, wherein the rewriting means rewrites the index number so that the reproduction order becomes earlier as the data having higher priority.   2. The recording / reproducing apparatus according to claim 1, wherein the priority setting means sets any one of the priority levels divided into four stages for each data based on an instruction from the instruction input means. .   2. The recording / reproducing according to claim 1, wherein the priority setting means sets the lowest priority for the stored data when no instruction is given from the instruction input means. apparatus.   The rewriting means sets an index number between data having the same priority set by the priority setting means so that the reproduction order is delayed as the data stored by the recording means is later. 9. The recording / reproducing apparatus according to claim 8, wherein rewriting is performed.   2. The recording / reproducing apparatus according to claim 1, further comprising display means for displaying at least information indicating the index number and the priority.  The recording / reproducing apparatus according to claim 1, wherein the recording medium is a semiconductor memory disposed in a housing.

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