JP3247776B2 - Information recording / reproducing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording / reproducing apparatus for recording or reproducing information, and more particularly to an information recording / reproducing apparatus for recording or reproducing information using a removable recording medium including a semiconductor memory device. It is about.

[0002]

2. Description of the Related Art Conventionally, as an apparatus for recording and reproducing information,
2. Related Art A cassette tape recorder that uses a magnetic tape as a recording medium and records or reproduces audio information is generally known. The advantages of using a magnetic tape in a cassette tape recorder include that the cost of the magnetic tape itself is low, and that the long tape length enables long-time recording and reproduction. On the other hand, since sound is recorded on the magnetic tape by the relative movement of the magnetic head and the magnetic tape, a mechanism for moving the magnetic tape is required. As a result,
As disadvantages, it is difficult to reduce the size and weight of the device, and since it operates mechanically, there are problems such as occurrence of mechanical noise, high failure rate, and low access speed. .

In order to solve the above-mentioned problems, an audio recording / reproducing apparatus using a semiconductor storage device instead of a magnetic tape as a recording medium has been developed.

[0004] This device does not record or reproduce sound using a magnetic recording phenomenon due to mechanical relative movement as in a device using a magnetic tape, but uses an electric charge accumulation state. To record audio.
Therefore, since the above-mentioned mechanism is unnecessary in this device, it is easy to reduce the size and weight of the device, no mechanical noise is generated, and the reliability can be improved. In addition, since all recording and reproducing operations are performed electrically, the access speed for searching for a desired voice becomes high,
It is possible to instantaneously search for a desired sound. On the other hand, semiconductor storage devices generally have a disadvantage that they are somewhat expensive and require a backup power supply to hold stored data, but in recent years, due to the development of semiconductor manufacturing methods, they have been relatively inexpensive. A non-volatile batch erasing memory which can be manufactured and does not require a power supply for backup has been put to practical use, and the above-mentioned problems have been overcome.

[0005]

In order to improve the operability of the information recording / reproducing apparatus, a predetermined position of a mounted recording medium is temporarily stored (hereinafter referred to as "store"), and the stored predetermined position is stored. There is a demand for an operation of returning to (hereinafter referred to as recall).

However, in the magnetic tape device described above, it is difficult to temporarily remember the pointer and return to the instantly remembered pointer, resulting in poor operability.

In the information recording / reproducing apparatus using the above semiconductor storage device, the above operation is possible,
If a memory card different from the stored memory card is inserted, recalling will return to a pointer that is completely different from the user's intention, and the operability is also poor.

Further, at the time of recall, even if the same memory card is inserted and recorded at a position before the stored pointer after the store operation, the recorded elapsed time is not the correct elapsed time, and However, there was a problem that the operability was poor because the elapsed time could not be grasped.

An object of the present invention is to solve the above-mentioned problem. An information recording apparatus capable of improving operability by recording a predetermined position of information recorded on a recording medium and returning to the position. It is an object to provide a playback device.

[0010]

An information recording / reproducing apparatus according to the first aspect of the present invention includes a recording / reproducing apparatus for recording information using a removable recording medium.
Or an information recording / reproducing apparatus for performing reproduction. The recording medium is
Includes semiconductor storage devices. The information recording / reproducing device has a first recording
Stored in a semiconductor storage device to specify the recording medium
And the first data relating to the information stored on the first storage medium.
The second data relating to the reproduction of the stored information is stored.
Storage means, connected to the storage means, for storing the first data and the second data;
Based on the information stored in the semiconductor device of the recording medium
The determination means for determining whether the second recording medium is the same as the first recording medium; and the storage means and the determination means.
If the determination unit determines that the recording media are the same , based on the second data,
Reproducing means for reproducing information stored in the semiconductor memory device . Here, the storage means is a work recording circuit of a system microcomputer included in the information recording / reproducing device and controlling the information recording / reproducing device.

The information recording / reproducing apparatus according to the second aspect is detachable.
Record or reproduce information using a possible recording medium
An information recording / reproducing device. The recording medium is a semiconductor storage device.
Including. The information recording / reproducing device specifies the first recording medium
For information stored in a semiconductor storage device
Storage means for storing data; and
Data and information stored in the semiconductor device of the second recording medium.
Based on the second recording medium, connection determining means for determining whether a first recording medium and the same <br/>, to the determination unit
And rejecting means for rejecting reproduction of information from the second recording medium when the determining means determines that the information is not the same recording medium.

The information recording / reproducing apparatus according to the third aspect is detachable.
Record or reproduce information using a possible recording medium
An information recording / reproducing device. The recording medium is a semiconductor storage device.
Including. The information recording / reproducing device specifies the first recording medium
For information stored in a semiconductor storage device
The first data and the information stored on the first recording medium
Second data relating to the raw data stored in the semiconductor memory device;
To store third data relating to the attribute of the information
Storage means and storage means for storing first data and second data.
Based on information stored in the semiconductor device of the recording medium,
Determining means for determining whether the second recording medium is the same as the first recording medium; and connecting to the storage means and the determining means.
If the determination unit determines that the recording media are the same, the second data and the semiconductor device of the second recording medium are written.
Correction means for correcting the third information based on the stored information.

[0013]

According to the information recording / reproducing apparatus of the first aspect,
The newly installed second recording medium is the first recording medium
If they are the same, the first recording medium is
Information based on the second data indicating the birth end position, etc.
Can be played.

In the information recording / reproducing apparatus according to the second aspect , the newly mounted second recording medium is the first recording medium.
If not the same as the body, refuse to play from the second recording medium
can do.

In the information recording / reproducing apparatus according to the third aspect, the newly mounted second recording medium is the first recording medium.
If the first recording medium is the same as the
Second data indicating the playback end position when the data is generated,
Based on the information recorded after
For example, the third information indicating the last pointer of the information is corrected.
Can be

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An information recording / reproducing apparatus according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an information recording / reproducing apparatus according to one embodiment of the present invention.

Referring to FIG. 1, the information recording / reproducing apparatus includes a main body 1 and a memory card 6. The memory card 6 has a configuration detachable from the main body 1.

The main body 1 includes a microphone 2, an amplifier 3,
10, an AD converter 4, an audio compression circuit 5, a system microcomputer 7, an audio expansion circuit 8, a DA converter 9, a speaker 11, a key switch 12, and a display unit 13.

The operation of the information recording / reproducing apparatus will be described below. At the time of recording, the sound is converted into an electric signal (analog signal) by the microphone 2, amplified by the amplifier 3, and then converted from an analog signal to a digital signal by the AD converter 4. The converted digital audio signal is compressed by the audio compression circuit 5 to reduce the amount of information to several tenths to tenths and output to the system microcomputer 7. The system microcomputer 7 reads the compressed data once, and writes the compressed data into the memory card 6 by designating a predetermined address. The system microcomputer 7 repeats the operation of successively taking in data from the audio compression circuit 5 and writing it into the memory card 6 while incrementing the address. With the above operation, the compressed audio data is recorded on the memory card 6.

Next, at the time of reproduction, the system microcomputer 7 reads data from the memory card 6 by designating a predetermined address, and transfers the read data to the audio decompression circuit 8.
The audio decompression circuit 8 decompresses the data compressed by the audio compression circuit 5 into an original digital audio signal. The expanded digital audio signal is converted from a digital signal to an analog signal by the DA converter 9, amplified by the amplifier 10, and then reproduced from the speaker 11 as audio. With the above operation, the compressed data recorded on the memory card 6 is reproduced as audio.

The above operation such as recording or reproduction is performed by the key switch 1 connected to the system microcomputer 7 by the user.
It is controlled by pressing the 2 predetermined key. Also,
The operation status of the apparatus is displayed on a display unit 13 connected to the system microcomputer 7.

Next, an outline of a recording or reproducing operation will be described. At the time of recording, when the user presses the recording key, the voice input from the microphone 2 is recorded on the memory card 6 by the system microcomputer 7. When the D mark key is pressed during recording, the sound data up to that point is recognized as one document, and this information (hereinafter, referred to as an index) is recorded in the memory card 6 together. Until the stop key is pressed, the sound is recorded on the memory card 6 as one or a plurality of documents as described above. Also,
At the start or end of insertion or overwrite recording, the corresponding index is similarly recorded.

At the time of reproduction, when the play key is pressed, voice data is read from the memory card 6 and reproduced by the speaker 11. By pressing the fast forward key or the rewind key, it is possible to jump or rewind in document units using the above index. A feature of the semiconductor memory is that this fast-forward or rewind operation can be performed instantaneously.

Next, the memory card shown in FIG. 1 will be described. FIG. 2 is a block diagram showing a configuration of the memory card.

In FIG. 2, the memory card includes an address decoder 14, a batch erase type programmable read only memory (hereinafter abbreviated as F-EEPROM) 15, 16,
17 and 18. The memory card shown in FIG. 2 includes four F-EEPROMs 15 to 18. Each FE
The lower addresses of the address bus and the data bus are connected in parallel to the EPROMs 15 to 18, respectively. The F-EEPROMs 15 to 18 have a write enable signal WE for writing data, an erase signal ERASE for collectively erasing data, and an F-EEPRO.
Chip select signals CS1 to C for selecting M15 to M18
S4 has been input. Chip select signal C
S1 to CS4 are signals obtained by decoding the upper address of the address bus by the address decoder 14, and the chip select signals CS1 to CS4 are exclusive, respectively, and the signals F1 to CS4 when the chip select signals CS1 to CS4 become true.
-Only the EEPROM can write or read data.

The address decoder 14 has an F-EEPR
A card enable signal CE for disconnecting all of the OMs 15 to 18 from the data bus is input. When the card enable signal CE becomes true, all the chip select signals CS1 to CS4 are decoded to be false.

Next, the operation of the insertion recording of the information recording / reproducing apparatus configured as described above will be described. FIG. 3 is a flowchart illustrating the operation of the insertion recording. FIG.
FIG. 4 is a diagram for explaining the operation of insertion recording. FIG. 5 is a diagram for explaining the state of the index during insertion recording. Hereinafter, in this embodiment, audio is recorded as a plurality of divided units (hereinafter, referred to as documents), and an index, which is sub-information for each document, is recorded. Data, elapsed time data, codes indicating the attributes of the index, and the like are obtained. The index is, for example, one unit of 8 bytes, and the audio data is, for example, one unit of 34 bytes. The index is
The data is stacked and recorded from the highest address side to the lowest address side of the memory card 6 in order. Audio data is 34 bytes
Is used as a flag byte.

Referring to step S1 of FIG. 3 and (a) of FIG. 4, first, the information recording / reproducing apparatus is in an initial state.
The initial state refers to, for example, a state where reproduction is stopped at an arbitrary position. Next, in step S2, the system microcomputer 7 determines whether or not the recording is the insertion recording by the key switch 12. When recognizing that it is insertion recording, in step S3, the following pre-processing of insertion recording is performed.

Referring to FIG. 4B, the system microcomputer 7 first writes the jump flag J1 in the flag byte of the audio frame at the address of the recording start position, and also jumps to the flag byte of the audio frame at the jump destination. Write the flag j1.

Referring to FIG. 5, system microcomputer 7 includes
The index X1 includes a jump mark code, a recording start position address (J1 address), and a jump destination address (j
One address, where the jump destination is the same as the physical EOD (end of data) address) is recorded. Next, the time mark code and the start time (TIME t1) are recorded in the index X2. Insertion section time (TIM
Et2) is recorded at the end of recording.

Referring again to FIG. 4B, I-REC
In step S4 of FIG. 3, the system microcomputer 7 records the insertion data in the unrecorded portion of the memory card 6, as indicated by the arrow. Here, the recording start position is the physical EO
Record from D.

Next, referring to FIG. 4C, in step S5 in FIG. 3, the system microcomputer 7 checks whether or not the insert button of the key switch 12 has been released. Upon confirming that the insert button has been released, the system microcomputer 7 executes the post-processing of the insertion recording as described below.

First, the system microcomputer 7 writes the jump flag J2 in the flag byte of the frame at the address of the recording end position. Next, the jump mark code and the recording end position address (J2
Address) and return address (J1 address, where
The return destination is the same address as the recording start position. ). Next, the insertion section time (TIME t2) is recorded in the time adjustment index X2. Next, the physical EOD position is recorded in the index X4.

Next, in step S7 of FIG. 3, the system microcomputer 7 completes the recording and shifts to the stop mode.

Next, the operation of reproducing the inserted portion will be described. FIG. 6 is a flowchart illustrating the playback operation of the insertion recording.

Referring to FIG. 4D, in step S11 of FIG. 6, the system microcomputer 7 executes the processing of FIG.
The audio is reproduced from IP1.

Next, in step S12, the system microcomputer 7 checks the flag byte of the audio frame.

When the system microcomputer 7 detects the jump flag in the flag byte, in step S13,
Only the index of the jump mark code is searched from the index shown in FIG. 5, and the address currently being reproduced is compared with the address written in the index. That is, the J1 address and the J2 address are compared. Since the address currently being reproduced is equal to the J1 address, the system microcomputer 7 sets the index X shown in FIG.
The address of the jump destination (j1 address) is extracted from 1. Next, in step S14, the IP of FIG.
A jump is performed as shown in FIG. Here, the jump flag J1 at the jump destination is set to be ignored.

Thereafter, steps S11 to S14 are similarly repeated, and when the system microcomputer 7 detects the next jump flag J2 during reproduction by IP3 of FIG. 4D, the jump destination address (J1 address)
And performs a jump as shown in IP4,
As shown in FIG. 5, reproduction is started again from the insertion position.

Next, the operation at the time of rewind will be described with reference to FIG. At the time of rewind,
The difference from the time of reproduction is that the relationship between the comparison target, ie, the address of the jump source and the address of the jump destination is reversed when only the index is searched.

For example, the system microcomputer 7 continues rewinding from IR1 in FIG. 4E while checking the flag byte. Next, upon detecting the jump flag in the flag byte, the system microcomputer 7 searches only the index of the jump mark code from the index of FIG. 5 and compares the current address with the address written in the index. That is, the j1 address and the J1 address of the index X3 are to be compared. In this case, since the current address is equal to the J1 address of the index X3, the jump destination address (J2 address) is extracted from the index X3, as shown in IR2. Perform a jump to. Here, the jump flag J2 at the jump destination is set to be ignored.

Next, when the next jump flag j1 is detected during rewinding by IR3, the system microcomputer 7 extracts the jump destination address (J1 address) from the index in FIG. And the rewind is continued as indicated by IR5.

By the above insertion recording operation, an insertion voice can be equivalently inserted into an arbitrary position of the already recorded audio information, and this operation is performed in real time, so that operability is greatly improved. Be improved.

Next, the recording operation of overwrite recording will be described. FIG. 7 is a flowchart illustrating a recording operation of overwrite recording. FIG. 8 is a diagram for explaining the overwrite recording operation. FIG. 9 is a diagram illustrating the state of the index during overwrite recording.

First, in step S21 of FIG. 7, the information recording / reproducing apparatus is in an initial state. Here, the initial state refers to a state where reproduction is stopped at an arbitrary position, for example, as shown in FIG.

Next, in step S22, the system microcomputer 7 checks whether or not the key switch 12 has shifted to overwrite recording.

After confirming that the recording has shifted to overwriting,
In step S23, the system microcomputer 7 performs the following preprocessing of overwrite recording.

First, as shown in FIG. 8B, the system microcomputer 7 writes the jump flag K1 in the flag byte of the frame at the address of the recording start position, and also jumps to the flag byte of the audio frame to which the jump is made. Write the flag k1.

Next, the jump mark code, the recording start position address (K1 address), and the jump destination address (k1 address, the jump destination is the physical EOD address) are recorded in the index X1 shown in FIG.

Next, in step S24 in FIG. 7, the system microcomputer 7 records the audio data in the unrecorded portion of the memory card 6, as indicated by the solid arrow in FIG. 8B. At this time, the system microcomputer 7 counts up the address of the portion to be overwritten by an amount corresponding to the overwrite recording time, as indicated by the dashed arrow.

Next, in step S25, the system microcomputer 7 checks whether or not the key switch 12 has shifted to the end of recording.

When recognizing that the recording has ended, in step S26, the system microcomputer 7 executes the following overwrite recording finishing process.

First, as shown in FIG. 8C, the system microcomputer 7 writes the jump flag K2 in the flag byte of the frame at the address of the recording end position, and also jumps to the flag byte of the return audio frame. Flag k2
To write. Next, a jump mark code, a recording end position address (K2 address), and a jump destination address (k2 address) are also recorded in the index x2 of FIG. Here, the k2 address is an address of a portion corresponding to the overwriting time.

Next, the physical E is added to the index x3 of FIG.
Record OD1. Next, in step S27, the system microcomputer 7 ends the recording, and shifts to the stop mode.

Next, the reproduction operation of the overwritten portion will be described. FIG. 10 is a flowchart for explaining a reproduction operation of overwrite recording.

First, in step S31, the system microcomputer 7 reproduces audio data from EP1 of FIG. 8D.

Next, in step S32, the system microcomputer 7 checks the flag byte of the audio frame and detects a jump flag.

When a jump flag is detected, step S
At 33, the system microcomputer 7 searches only the index of the jump mark code from the index of FIG. 9, and compares the current address with the address written in the index. That is, the K1 address and the k2 address are compared. The current address is K1
Since it is equal to the address, the jump destination address (k1 address) is extracted from the index x1.

Next, the system microcomputer 7 executes a jump as shown in EP2 of FIG. Here, the jump flag k1 at the jump destination is set to be ignored.

Thereafter, steps S31 to S34 are similarly repeated, and when the system microcomputer 7 detects the next jump flag K2 during the reproduction at EP3 in FIG. 8D, the jump destination address (from the index in FIG. 9) After the jump is executed as shown in EP4, the reproducing operation is continued as shown in EP5.

Next, the operation at the time of rewinding will be described with reference to FIG. At the time of rewind,
The difference from the time of reproduction is that the relationship between the comparison target, ie, the address of the jump source and the address of the jump destination is reversed when only the index is searched.

The system microcomputer 7 continues rewinding while checking the flag byte from ER1 in FIG. 8 (e).

Next, when the system microcomputer 7 detects a jump flag in the flag byte, it searches only the index of the jump mark code from the index of FIG. 9 and compares the current address with the address written in the index. . That is, the k1 address and the k2 address are to be compared. Since the current address is equal to the k2 address, the jump destination address (K2 address) is extracted from the index x2, and the jump is executed as indicated by ER2. Here, the jump flag K2 at the jump destination is set to be ignored.

Next, when the system microcomputer 7 detects the next jump flag k1 during rewinding in ER3, the system microcomputer 7 extracts the jump destination address (K1 address) from the index in FIG. After executing the jump, rewinding is continued as indicated by ER5.

By the above-described overwrite recording operation, the overwrite audio data can be overwritten at an arbitrary position of the already recorded audio data, and the overwrite recording operation can be executed in real time. Operability is greatly improved.

In the information recording / reproducing apparatus, the index records address data indicating the break of one document, elapsed time data, a code indicating the characteristics of the index, and the like. Hereinafter, this document-based index is called an E-mark index, and the index written when insertion recording is performed is called a time index. In the time index, the section time of the insertion recording and the elapsed time when the insertion recording is started are recorded.

The operation of updating the skip table of the information recording / reproducing apparatus configured as described above will be described below. The skip table is a table that stores information referred to during a skip operation. The update of the skip table is performed after insertion recording, when a new document is added, or when a document is deleted. FIG. 11 is a flowchart illustrating the update operation of the skip table.

First, in step S41, the section time is recorded during insertion recording. Next, in step S42, after the insertion recording is completed, only the E mark index is extracted from the index and transferred to the work RAM (random access memory) provided in the system microcomputer 7.

Next, in step S43, the work R
Using the AM data and the index time index data, the correct elapsed time of each document is calculated by the time correction algorithm described below, and this is used as a skip table.

Next, in step S44, the above skip table is rearranged based on the elapsed time in order to simplify the skip execution.

Hereinafter, each of the above steps will be described in more detail. First, as for the step S41 shown in FIG. 11, since the section time is recorded by the insertion recording described with reference to FIGS. 3 and 4, the following description will be omitted.

Next, step S42 shown in FIG. 11 will be described in detail. FIG. 12 is a diagram illustrating an index and a skip table.

In FIG. 12, E1 represents the index of the first written document, En represents the index of the nth written document, and Enm
ax represents the index of the last written document. E1a, E2a, Ena, and Enmaxa include the address of the E mark, that is, the start address of the document, and E1t, E2t, Ent, and Enmaxt include the start time when the document is recorded. Here, since the E mark which is a delimiter of the document can be written anywhere, the order of writing in the index is not always in the order of elapsed time. In FIG. 12, T1, T2, and Tn indicate time indexes, and T1
1t, T2t, and Tnt include the section time of the insertion recording, and T
1b, T2b, and Tnb include the elapsed time when the insertion recording is started.

Next, a method of creating a skip table from an index including each data as described above will be described. FIG. 13 is a flowchart illustrating a procedure for creating a skip table. In the present embodiment, since the nonvolatile batch erasing memory is used for the memory card 6, there is a characteristic that new recording cannot be performed unless the batch erasing area is erased. Is recorded in the working RAM provided in the system microcomputer 7 only with the E mark index. As a result, the skip table can be updated in real time and the skip table is configured with a minimum amount of data, so that the working RAM can be used effectively.

First, in step S51, the index pointer is set to the maximum address.

Next, in step S52, a pointer of the transfer destination work RAM is initialized.

Next, a mark code is read from the index shown in FIG. Next, in step S54, it is confirmed whether or not the read mark code indicates the E mark index. If the mark code is not the E mark index, the process proceeds to step S57, and if the read mark code is the E mark index, the process proceeds to step S55.

Next, in step S55, the E mark index is transferred to the working RAM.

Next, in step S56, the work RA
Update the pointer to M. Next, in step S57, the index pointer is updated, the process proceeds to step S53, and the subsequent processing is continued.

With the above processing, a skip table is created in the working RAM of the system microcomputer 7 from the index shown in FIG. Here, S1a and S1 shown in FIG.
2S, Sna, and Snmaxa include the start address of the document, and S1t, S2t, Snt, and Snmaxt include the start time when the document was recorded.

At this stage, the elapsed time has not yet been corrected in the skip table. For example, in the example of FIG. 12, n insertion recordings have been performed since E1 was recorded. Therefore, if the start elapsed time of the insertion recording is smaller than Snt, Snt is subject to time correction.

Next, step S43 shown in FIG. 11 will be described in detail. FIG. 14 is a flowchart illustrating an algorithm for time correction. Each symbol shown in FIG. 14 corresponds to each symbol shown in FIG.

The time correction algorithm will be described with the correction target set to S1t. The initial value of S1t is the same as E1t. For S1t, the insertion recording start time is sequentially compared among the time indexes included in the S1 search target area shown in FIG. That is, first, T1b and S1t are compared, and if T1b <S1t, the insertion recording section time T1t is added to S1t. As a result, S1t
Is S1t + T1t. Hereinafter, similarly, T2b <S1t
Then, S1t becomes S1t + T2t, and Tnb <S1
If t, S1t becomes S1t + Tnt. The above correction is performed in order. Next, the correction target is set to S2t. The initial value of S2t is the same as E2t. S2t is corrected in the same manner as described above using the time index included in the S2 search target area shown in FIG. The above operation is repeated up to Snmax, and all Snts are corrected.

In the above algorithm, the elapsed time Ent is correct when the document is started to be written, that is, when the E mark is recorded, and the elapsed time Tnb is correct even when the insertion recording is started.
Events such as recording of an E mark and the start of insertion recording utilize the fact that events are recorded in the order of occurrence of events from the highest address side of the index.

Although the above-described time correction has been described for the insertion recording, the start time when the document is recorded is similarly corrected when the E mark is erased by overwriting recording or when a new E mark is recorded. be able to.

Next, step S44 shown in FIG. 11 will be described in detail. In the skip table created in step S43 in FIG. 11, since the E mark can be recorded anywhere, it is not always arranged in the order of elapsed time. When the skip is executed, it is easier to arrange the skip tables in the order of the elapsed time because the load on the system microcomputer 7 is lighter. If necessary, the skip tables are rearranged in ascending or descending order of the elapsed time. Here, S shown in FIG.
The na address is an absolute address and is not changed.

As described above, by recording the minimum index, the elapsed time at the skip destination can be specified even if the elapsed time at the head of the document is shifted by the insertion recording, and the skip operation can be easily performed. Can be
The operability of the device is significantly improved.

In the above embodiment, the case where the nonvolatile batch erasing type memory is used has been described. However, when the semiconductor memory which can be rewritten at any time is used, the skip table is directly recorded in the semiconductor memory, and when the insertion recording is completed, Then, the same effect as described above can be obtained by directly adding the insertion section time to the elapsed time data of the skip table of the document after the insertion recording is performed and rewriting the elapsed time data of the skip table.

Next, the store / recall operation will be described. Here, "store" indicates that the pointer is temporarily stored, and "recall" indicates that the pointer is restored. FIG. 15 is a flowchart illustrating the operation of store / recall.

First, in step S71, it is assumed that the apparatus is in a normal operation state. Next, in step S72, it is confirmed whether or not the store key has been pressed. If the store key has been pressed, the process proceeds to step S73, and if not, the process proceeds to step S71.

If it is determined in step S72 that the store key has been pressed, the identity determination data is temporarily stored in the working RAM of the system microcomputer 7 in step S73. Here, the identity determination data indicates the frame data of the audio data recorded first on the inserted memory card 6, the data of the index recorded first, and the pointer at the end of the index.

Next, in step S74, the apparatus shifts to the store operation state. Next, in step S75, it is determined whether the recall key has been pressed. If the recall key has been pressed, the process proceeds to step S76.
If not, the process moves to step S74.

If the recall key has been pressed, it is determined in step S76 whether or not the memory card inserted by the above-described memory card specifying method is the same as the memory card storing the data for determining identity. Confirm. If the memory cards are the same, the process proceeds to step S78; otherwise, the process proceeds to step S81. In this step, the identity of the memory cards is checked by the above-described method of specifying the memory cards, but the identity may be checked by using an ID number, a serial number, or the like.

Next, in step S78, it is confirmed whether or not the last pointer stored in the index is the same. If they are the same, the process proceeds to step S79,
If not, the process moves to step S80.

If the pointers are the same, it is known that no recording has been made, so the recall operation is executed as it is in step S79.

On the other hand, when the pointers are different, the recording is being performed, and there may be a difference in the elapsed time. Therefore, the conditional recall operation described below is performed in step S8.
Execute at 0. Conditional recall operation means that when only overwriting or append recording is performed, there is no difference in elapsed time, so the recall operation is performed as it is, and when insertion recording is performed, the elapsed time needs to be corrected. In addition, the elapsed time is corrected to the elapsed time before the stored time by the inserted recording section time. The correction of the elapsed time is performed by the time correction described with reference to FIGS.

After the conditional recall operation and the end of the recall operation, the flow shifts to step S71.

If it is determined in step S76 that the memory card is different, a predetermined warning process or the like is performed in step S81 to inform the user that the memory card is different, and the process returns to step S74. Transition to the store operation state.

According to the above operation, if the same memory card has not been recorded, the recall operation is executed as it is, if the recording has been made, the conditional recall operation is executed, and if the card is different, a warning is issued. It becomes possible to reject the recall operation by performing operations such as processing.

Next, a description will be given of the state transition relation of the store / recall operation. FIG. 16 is a diagram illustrating the state transition of the store / recall operation.

First, the store / recall operation for the same card will be described. First, the normal operation state N1 in FIG. 16 is set as an initial state. At this stage, nothing is stored in the working RAM of the system microcomputer 7.

Next, when the store key is pressed (SM
1) The system microcomputer 7 stores the address of the inserted memory card 6, the elapsed time, and the data for determining the identity in the working RAM, and shifts to the store operation state SM2.

Here, in the store operation state SM2, the same operation is possible as in the normal operation state N1, but in this case, it is assumed that only the operation of the reproduction system is performed.

Next, the memory card 6 may be removed from the apparatus main body (SM3), and after working with another memory card, the stored memory card may be inserted (SM4).

Next, when the recall key is pressed (SM
5) The system microcomputer 7 compares the identity determination data stored in the working RAM with the data of the inserted memory card.

In this case, since only the reproduction operation is performed and the same card is used, a recall operation is executed (SM9).

After the execution of the recall operation, the pointer is instantaneously returned to the normal operation state (N1).

Next, when the newly inserted card is the same card but a recording operation is being performed, the store /
The recall operation will be described. First, as above,
The normal operation state N1 is set as an initial state. At this stage, nothing is stored in the working RAM of the system microcomputer 7.

Next, when the store key is pressed (SM
1) The system microcomputer 7 stores the address of the currently inserted memory card 6, the elapsed time, and the data for determining the identity in the working RAM. After the storage, the state shifts to the store operation state SM2.

Here, in the store operation state SM2, the same operation as in the normal operation state N1 is possible. In this case, it is assumed that not only the operation of the reproduction system but also the operation of the recording system have been performed.

Next, the memory card 6 inserted once
May be pulled out (SM3), working with another memory card 6, or inserting the stored memory card 6 (SM4). The memory card 6 once pulled out as described above may be recorded by another device, and it is important to check the recording state thereafter.

Next, when the recall key is pressed (SM
5) The system microcomputer 7 compares the identity determination data stored in the working RAM with the data of the inserted memory card.

In this case, although the memory card is the same,
Since the recording has been made, it is determined that the recording has been made by comparing the pointer at the end of the index as described above, and the conditional recall operation is executed (SM
8).

After the execution, the pointer is sequentially returned and returns to the normal operation state N1. Next, an operation of rejecting a recall operation when a different memory card is inserted will be described.

First, it is assumed that the apparatus is in the normal operation state N1 as an initial state. At this stage, it is assumed that nothing is stored in the working RAM of the system microcomputer 7.

Next, when the store key is pressed (SM
1) The system microcomputer 7 stores the address of the currently inserted memory card 6, the elapsed time, and the data for determining the identity in the working RAM. After the storage, the state shifts to the store operation state SM2.

Here, in the store operation state SM2, the same operation as in the normal operation state N1 is possible.

Next, it is assumed that a memory card 6 different from the stored memory card 6 is inserted (SM3, SM3).
4).

At this time, if the recall key is pressed (S
M5), the system microcomputer 7 compares the identity determination data stored in the work RAM with the data of the newly inserted memory card. In this case, since the newly inserted memory card is a memory card completely different from the stored memory card, a recall operation cannot be performed, so that processing such as a warning is performed (SM7), and a transition is made to the store operation state SM2. Here, it may be possible to forcibly return to the normal operation state N1 in case the stored card is not at hand (SM10).

[0120]

In the information recording / reproducing apparatus according to the first aspect, the reproduction end position when the first recording medium was reproduced last time.
Recorded on the recording medium based on the second data
Information can be reproduced.

In the information recording / reproducing apparatus according to the second aspect , the newly mounted second recording medium is the first recording medium.
If not the same as the body, refuse to play from the second recording medium
Therefore, erroneous operation or the like is eliminated, and operability can be improved.

In the information recording / reproducing apparatus according to the third aspect, the newly mounted second recording medium is the first recording medium.
If the first recording medium is the same as the
Second data indicating the playback end position when the data is generated,
Based on the information recorded after
For example, the third information indicating the last pointer of the information is corrected.
Since it is Rukoto eliminates malfunctions, the operability can break <br/> good.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an information recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of the memory card shown in FIG.

FIG. 3 is a flowchart illustrating a recording operation of insertion recording.

FIG. 4 is a diagram illustrating an operation of insertion recording.

FIG. 5 is a diagram illustrating a state of an index during insertion recording.

FIG. 6 is a flowchart illustrating a playback operation of insertion recording.

FIG. 7 is a flowchart illustrating a recording operation of overwrite recording.

FIG. 8 is a diagram illustrating an operation of overwriting recording.

FIG. 9 is a diagram illustrating a state of an index during overwrite recording.

FIG. 10 is a flowchart illustrating a playback operation of overwrite recording.

FIG. 11 is a flowchart illustrating a procedure for updating a skip table.

FIG. 12 is a diagram illustrating an index and a skip table.

FIG. 13 is a flowchart illustrating a procedure for creating a skip table.

FIG. 14 is a flowchart illustrating an algorithm for time correction.

FIG. 15 is a flowchart illustrating a store / recall operation.

FIG. 16 is a diagram illustrating a state transition of a store / recall operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body part 2 Microphone 3, 10 Amplifier 4 A / D converter 5 Audio compression circuit 6 Memory card 7 System microcomputer 8 Audio expansion circuit 9 DA converter 11 Speaker 12 Key switch 13 Display part

Claims (3)

(57) [Claims] 1. A data recording and reproducing apparatus for recording or reproducing information by using a wearing detachable recording medium, the Symbol
The recording medium includes a semiconductor storage device, and the information recording / reproducing device
Is a semiconductor memory device for specifying a first recording medium.
First data relating to information stored in the
Second data relating to reproduction of information stored in the first recording medium.
Storage means for storing data and the first data and the second storage means connected to the storage means.
Based on information stored in the semiconductor device of the recording medium.
Determining means for determining whether or not the second recording medium is the same as the first recording medium; and connecting to the storage means and the determining means. If it is determined that the said
A semiconductor for the second recording medium based on second data;
An information recording / reproducing apparatus including: a reproducing unit for reproducing information stored in a storage device. 2. An information recording and reproducing apparatus for recording or reproducing information by using a wearing detachable recording medium, the Symbol
The recording medium includes a semiconductor storage device, and the information recording / reproducing device
Is a semiconductor memory device for specifying a first recording medium.
For storing data related to information stored in the storage device
Stage , connected to said storage means, said data and a second recording medium
Based on the information stored in the semiconductor device,
Determining means for determining whether the second recording medium is the same as the first recording medium; and a determination means connected to the determination means ,
If it is determined that the medium is not a recording medium, the second recording medium
And a rejecting unit for rejecting the reproduction of information from the device. 3. An information recording and reproducing apparatus for recording or reproducing information by using a wearing detachable recording medium, the Symbol
The recording medium includes a semiconductor storage device, and the information recording / reproducing device
Is a semiconductor memory device for specifying a first recording medium.
First data relating to information stored in the
Second data relating to reproduction of information stored in the first recording medium.
Data and the attribute of information stored in the semiconductor storage device.
Storage means for storing third data related to sex , and the first data and second storage means connected to the storage means.
Based on information stored in the semiconductor device of the recording medium.
Determining means for determining whether or not the second recording medium is the same as the first recording medium; and connecting to the storage means and the determining means. If it is determined that the said
Second data and stored in the semiconductor device on a second recording medium
And a correcting means for correcting the third information based on the obtained information.