JP2000194397A - Data recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the erasure of the data due to erroneous operation with simple constitution. SOLUTION: This recorder is provided with a recording means 11 recording the data, an erase operation member 41 for instructing the erasure of the data recorded on the recording means 11 and an erasure means 10 performing the erase operation erasing the data recorded on the recording means 11 based on the instruction by the erase operation member 141. In such a case, the control means 10 controlling so that when the erase operation member 141 is operated for a first prescribed time or above, the erase operation is made in a standby state, and when the erase operation member 141 is operated for a second prescribed time or above during the standby state, the data are erased by the erasure means 10 is arranged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data recording device for recording digital data.

[0002]

2. Description of the Related Art In recent years, as this kind of apparatus, a digital audio recording / reproducing apparatus called a so-called digital recorder has been proposed. In this apparatus, an audio signal input by a microphone or the like is converted into a digital signal, and the digital signal is recorded on a recording medium such as a semiconductor memory. At the time of reproduction, the digital signal is read from the recording medium and converted into an analog signal. Etc. and output as audio.

In such a digital audio recording / reproducing apparatus, in particular, when an operation for erasing audio data recorded on a recording medium comprising a semiconductor memory is performed, the target audio data is collectively erased instantaneously. Therefore, dealing with an erroneous erasure operation becomes an important problem. As a general simplified erasing operation method, there is known a method in which erasing is started by simply pressing a predetermined button for a predetermined time.

[0004]

The digital audio recording / reproducing apparatus as described above is generally set so that data erasure is started only by turning on a predetermined button. According to such a data erasing method, it is only necessary to provide one erasing button, so that the apparatus can be simplified. However, the erasure is started only by pressing the erasure button for a predetermined time, for example, 2 seconds.
While carrying this device in a pocket or bag, the erase button may be turned on without your knowledge. Alternatively, even during a normal operation, the erasing button may be pressed due to a simple operation error. When such an erroneous erasing operation is performed, there is a possibility that data is erroneously erased, and it is necessary to take measures against it.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a data recording apparatus having a simplified configuration and capable of preventing erasure of data due to an erroneous operation.

[0006]

In order to solve the above-mentioned problems and achieve the object, a data recording apparatus of the present invention is configured as follows.

(1) A data recording apparatus according to the present invention comprises a recording means for recording data, an erasing member for instructing erasure of data recorded in the recording means, and a erasing member based on the erasing member. An erasing means for performing an erasing operation for erasing data recorded in the recording means, wherein when the erasing operation member is operated for a first predetermined time or more, the erasing operation is in a standby state. When the erasing operation member is operated again for a second predetermined time or more during the standby, the erasing means is provided with control means for erasing the data.

(2) The data recording apparatus according to the present invention is the apparatus according to the above (1), wherein the control means is configured to execute the standby operation when an operation member other than the erase operation member is operated during the standby. Cancel inside.

(3) The data recording apparatus of the present invention is the apparatus described in (1) or (2) above, and the control means does not perform a predetermined operation for a third predetermined time during the standby. In this case, the waiting state is released.

[0010] As a result of taking the above measures, the following effects are obtained.

(1) According to the data recording apparatus of the present invention,
Even if the erasing operation member is erroneously operated for the first predetermined time or more by a simple device that simply adds an erasing operation member for instructing data erasure, so-called intentionally again for the second predetermined time. Since erasure is not performed unless the above operation is performed, erasure of data due to erroneous operation of the erasure operation member can be prevented.

(2) According to the data recording apparatus of the present invention,
Even if the erasing operation member is operated for the first predetermined time or more, the standby state is released when an operation member other than the erasing operation member is operated during the standby state. It is possible to prevent data from being erased due to an erroneous operation during the operation.

(3) According to the data recording apparatus of the present invention,
Even if the erasing operation member is operated for the first predetermined time or more, if no operation is performed during the standby, the standby state is released to prevent data erasure due to erroneous operation of the erasing operation member. be able to.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A digital audio recording and reproducing apparatus capable of recording and reproducing audio will be described below as an embodiment of a data recording apparatus.

FIG. 1 is a block diagram showing a configuration of a digital audio recording / reproducing apparatus according to an embodiment of the present invention. As shown in FIG. 1, the apparatus includes a microphone 1 for converting an input sound into an electric signal, and an analog sound signal output from the microphone 1 is amplified by a microphone amplifier 2. The analog audio signal amplified by the microphone amplifier 2 is input to a low-pass filter 3, where an unnecessary frequency band is cut to prevent the generation of aliasing noise, and an A / D converter 4 as A / D conversion means is cut. Is input to

In the A / D converter 4, an analog audio signal is converted into a digital signal and then input to a digital signal processing unit (DSP) 5 as digital signal processing means. The digital signal processing unit 5 performs a process of converting (encoding) the audio signal converted into the digital signal into a certain format, and a process of converting (decoding) the encoded audio data into a digital signal again. It is.

The digital signal decoded by the digital signal processing unit 5 is input to a D / A converter 6 as D / A conversion means. The audio signal converted from a digital signal to an analog signal by the D / A converter 6 is input to a low-pass filter 7, and after removing unnecessary frequency bands and reducing quantization noise, a power amplifier 8 for driving a speaker 9.
Is input to The audio signal input to the power amplifier 8 is amplified and input to the speaker 9. The sound signal input to the speaker 9 is converted into sound and is sounded.

On the other hand, the data encoded by the digital signal processing unit 5 is transmitted to a control unit (CPU) 10. The control unit 10 is configured by a microprocessor (CPU), controls each unit of the digital audio recording / reproducing apparatus, and plays a role as an audio data recording unit and an audio data erasing unit.

The control unit 10 is connected to a recording medium 11 as data recording means. Under the control of the control unit 10, writing / reading of encoded audio data to / from the recording medium 11 is performed. Note that the recording medium 11
For this, a semiconductor memory such as a flash memory or a magnetic medium such as a magnetic tape or a magnetic disk is used.

Further, the control unit 10 is connected with an operation input unit 12 as operation means for instructing an operation mode of the digital audio recording / reproducing apparatus and a display unit 13 for displaying the operation mode and the recording time. The operation input unit 12 includes various operation buttons, for example, a record (record) button 121, a play button 122, a stop button 123, and the like. The display unit 13 displays information regarding various operation modes, recording time, time, information regarding an erasing mode, and the like. Further, the control unit 10 is connected to an erase operation input unit 14 having an erase button 141 as an erase operation member for instructing an erase operation.

FIGS. 2 and 3 are flowcharts showing the operation procedure in the digital audio recording / reproducing apparatus. In this digital audio recording / playback apparatus, playback (PLA)
When the Y) mode and the recording (REC) mode are not operating, the power saving (STOP) mode in which only the clock function or the like built in the control unit 10 operates with low power operates.
The display unit 13 displays the power saving mode (time display, etc.).

First, in step S1 of FIG. 2, the playback (PLAY) button 1 of the operation input unit 12 is set in the power saving mode.
When the button 22 is pressed, the control unit 10 executes a reproduction (PLAY) mode in a step S2. In addition, the above step S
If the reproduction (PLAY) button 122 is not pressed in 1 and the recording (REC) button 121 is pressed in step S3, the control unit 10 executes the recording (REC) mode in step S4.

Further, in step S3, recording (RE
C) If the button 121 is not pressed and the delete (DEL) button 141 of the delete operation input unit 14 is pressed in step S5, the control unit 10 starts measuring the elapsed time by the clock function. Then, in step S6, the delete (DEL) button 14
When the elapsed time during which 1 is kept pressed becomes, for example, 2 seconds or more, in step S7, the control unit 10 executes an erasing standby mode described later. Steps S2 and S above
When the operation of each mode is completed in S4 and S7, the control unit 10
Switches the display on the display unit 13 to display the power saving mode, activates the power saving mode again, and returns to step S1.
The following operation is performed.

In step S5, erasing (DEL) is performed.
If the button 141 is not pressed, and if the stop (STOP) button 123 is pressed in step S8, the control unit 10 switches the display on the display unit 13, displays the power saving mode, and operates the power saving mode again. Step S
If the stop (STOP) button 123 is not pressed at 8, the control unit 10 starts measuring the elapsed time by the clock function. Then, in step S9, the elapsed time is, for example, 5
The control unit 10 performs the operation of step S1 and subsequent steps again until the time reaches minute. When the elapsed time is equal to or longer than 5 minutes in step S9, the control unit 10 switches the display on the display unit 13, displays the power saving mode, and operates the power saving mode again.

The operation procedure of the erase standby mode will be described below. First, in step S11 of FIG.
When the control unit 10 confirms that the erase button 141 has not been pressed and has been turned off, the control unit 10 starts measuring the first elapsed time by the clock function, and in step S12, indicates that the erase operation is waiting. That is, the fact that the erase standby mode is being performed is displayed on the display unit 13. Next, in step S13, when the delete button 141 is pressed again, the control unit 10 starts measuring the second elapsed time by the clock function.

In step S14, the delete button 14
The second elapsed time in which 1 is kept pressed is, for example, 1
When the time is equal to or longer than seconds, the control unit 10 starts executing the erasing mode in step S15, switches the display on the display unit 13 and displays on the display unit 13 that data is being erased. next,
In step S16, the control unit 10 erases the data of the recording medium 11 at once, and when the erasing is completed, in step S17,
The display on the display unit 13 is switched to display that the erasure is completed, for example, for one second. Then, in step S18, the control unit 10
Executes the termination process of the erasing mode to release the erasing mode.

In step S13, the delete button 1
If the button 41 is not pressed, a button other than the delete button 141, for example, the stop (STOP) button 12
When 3 is pressed, in step S20, the control unit 10 executes the termination process of the erase standby mode to release the erase standby mode. In step S19,
If no button other than the erase button 141 is operated, and if the first elapsed time during which no operation is performed becomes 4 seconds or more in step S21, the control unit 10 terminates the erase standby mode in step S20. To release the erase standby mode. In addition, the above step S
If any operation is performed on the operation input unit 12 before the elapse of 4 seconds in 21, the control unit 10 performs the operation after step S12 again.

As described above, according to the audio data recording / reproducing apparatus of the present embodiment, the erasure button 141 is erroneously set by, for example, a simple apparatus having only the erasure button 141 for instructing erasure of audio data. Even if the operation is performed for more than 2 seconds, the deletion is not performed unless the operation is intentionally performed again, for example, for more than 1 second, so that the deletion of the voice data due to the erroneous operation of the delete button 141 can be prevented.

Further, even if the erase button 141 is operated for more than 2 seconds, for example, the erase standby mode is canceled when a button other than the erase button 141 is operated. It is possible to prevent erasure of voice data due to an erroneous operation.

Even if the erase button 141 is operated for, for example, two seconds or more, if no operation is performed during the erase standby mode, the erase standby mode is released, so that the audio data due to an erroneous operation of the erase button 141 is released. Can be prevented from being erased.

Further, the present invention is provided with a display unit 13 as display means, and the control unit 10 sets the display on the display unit 13 to display that the erasure standby mode is being performed.

The present invention is not limited to the above-described embodiment, but can be implemented with appropriate modifications without departing from the scope of the invention.

[0033]

According to the present invention, with a simplified configuration,
It is possible to provide a data recording / reproducing apparatus which can prevent data from being erased due to an erroneous operation.

[Brief description of the drawings]

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

FIG. 2 is a flowchart showing an operation procedure in the digital audio recording / reproducing apparatus according to the embodiment of the present invention.

FIG. 3 is a flowchart showing an operation procedure in the digital audio recording / reproducing apparatus according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Microphone 2 ... Microphone amplifier 3 ... Low-pass filter 4 ... A / D converter 5 ... Digital signal processing part (DSP) 6 ... D / A converter 7 ... Low-pass filter 8 ... Power amplifier 9 ... Speaker 10 ... Control part ( CPU) 11 recording medium 12 operation input unit 121 recording button 122 playback button 123 stop button 13 display unit 14 deletion operation input unit 141 deletion button

Claims (3)

[Claims] A recording means for recording data; an erasing operation member for instructing erasure of data recorded on the recording means; and data recorded on the recording means based on an instruction from the erasing operation member. And an erasing means for performing an erasing operation for erasing. When the erasing operation member is operated for a first predetermined time or more, the erasing operation is set to a standby state, and during the standby, the erasing operation is performed again. A data recording apparatus, comprising: control means for controlling the erasing means to erase the data when the member has been operated for a second predetermined time or more. 2. The data recording apparatus according to claim 1, wherein said control means cancels said standby state when an operation member other than said erase operation member is operated during said standby state. 3. The data recording apparatus according to claim 1, wherein the control unit cancels the standby state when a predetermined operation is not performed for a third predetermined time during the standby state. .