JP3907426B2 - Audio equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an audio apparatus.
[0002]
[Prior art]
Recently, audio devices that can copy music data from a recording medium such as a music CD (Compact Disc) to a recording MD (Mini Disc) have become widespread. In such an audio device, when music data recorded on a CD is once recorded on a recording MD at a high speed (double speed or more), a certain time (74) from the start of recording is recorded for copyright protection. Minute)), the same music data cannot be recorded again at another speed on another MD. In conventional audio equipment, if double-speed recording operation is performed again within the double-speed recording prohibited time, the display shows the time until the designated song can be recorded at double-speed recording. The user is notified that recording is not possible. In this case, the user can re-record by waiting for the displayed time or switching to normal speed.
[0003]
[Problems to be solved by the invention]
However, in conventional audio equipment, when the above-mentioned restrictions such as copyright protection are met, it is not possible to confirm when the desired music data can be recorded at double speed unless the double speed recording operation is performed. I couldn't. Similarly, there is a problem that which music data can be recorded at double speed is not known unless the double speed recording operation of each music data is performed, and the usability is not good.
[0004]
An object of the present invention is to provide an audio device capable of comfortable double-speed recording by instantaneously notifying that music data that has been in a state where double-speed recording is impossible has shifted to a state where double-speed recording is possible.
[0005]
[Means for Solving the Problems]
The present invention
In an audio apparatus comprising recording means for copying sound data recorded on a first recording medium to a second recording medium,
When the sound data recorded on the first recording medium is recorded on the second recording medium by the recording means at a high speed, the time measuring means counts a predetermined time for prohibiting the high-speed recording of the sound data again;
Storage means for storing a part of the sound data when high-speed recording of the sound data is performed;
A notification means for notifying, based on the sound data stored in the storage means, that the sound data has shifted to a state capable of high-speed recording when the timing of the high-speed recording prohibition time by the time counting means is completed;
It is characterized by having.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
First, the configuration will be described.
[0007]
FIG. 1 is a block diagram showing a functional configuration inside an audio system 100 to which the present invention is applied. As shown in FIG. 1, an audio system 100 includes a CD unit 1, a CD DSP / LSI 2, a microcomputer unit 3, an MD ATRAC / DSP / LSI 5, an MD unit 6, a display unit 7, a key unit 8, and A / D conversion. , D / A converters 10 and 11, and output switching SW 12.
[0008]
The CD unit 1 includes a CD loading mechanism, a pickup mechanism, an RF amplifier, and the like.
[0009]
The CD loading mechanism has a mechanism for loading and releasing a CD in a loading unit (not shown).
[0010]
The pickup mechanism moves the optical pickup in the radial direction of the disk by a thread (not shown) in accordance with a control signal from the microcomputer unit 3 during reproduction of the disk loaded in the loading unit, and applies laser light to the disk. Is provided with a mechanism for extracting data recorded on the disc from the reflected light.
[0011]
The RF amplifier extracts an RF signal and the like from the audio data read during CD reproduction, and outputs the extracted data to the CD DSP / LSI 2.
[0012]
Information such as a track name (song name), recording date / time of each track, start address, end address, and the like is recorded as TOC (Table Of Contents) information on the inner periphery of the CD. In addition, an identification code called ISRC (International Standard Recording Code) for identifying audio recording and audiovisual recording by means of digitally common means is recorded in each CD subcode. Has been.
[0013]
The DSP DSP / LSI (Digital Signal Processor Large Scale Integrated circuit) 2 performs an EFM (Eight to Fourteen Modulation) decoding process on the normal speed or double speed digital audio signal input from the CD unit 1 during CD playback. Digital processing related to CD playback processing is performed at high speed.
[0014]
The microcomputer unit 3 is a microcomputer having a central processing unit (CPU), a read only memory (ROM) (none of which are shown), and a timer 31 therein. Then, various operation programs stored in the ROM are read and various control processes are executed.
[0015]
Specifically, when there is a double speed recording instruction from the CD to the MD by operating the key section 8, the microcomputer section 3 stores a part of the audio data to be recorded at the double speed in the memory 4 (FIG. 2). ). In this recording process, at the same time as the start of double speed recording, the timer 31 is started, and a countdown corresponding to the double speed recording prohibited time (74 minutes) is started. The timer 31 has a function as a time measuring means for measuring the double speed recording prohibited time.
[0016]
Further, the microcomputer unit 3 stores the voice data stored in the memory 4 to the effect that the voice data for which the double speed recording is prohibited has shifted to the double speed recordable state when the timer 31 finishes counting the double speed recording prohibited time. Has a function as a notification means for notifying by reproducing (see double-speed recording possible notification processing in FIG. 3).
[0017]
The memory 4 stores a part (several tens of seconds) of audio data to be recorded at the time of double speed recording from CD to MD, and has a function as a storage unit.
[0018]
The ATRAC / DSP / LSI (Adaptive TRansform Acoustic Coding Digital Signal Processor Large Scale Integrated circuit) 5 for MD inputs from the DSP / LSI 2 (or A / D converter 9) for CD during digital recording (or analog recording). Various digital signal processing related to MD recording processing, such as ATRAC encoding processing and temporary recording of music data, is performed at high speed on the various digital music data. Further, the MD ATRAC / DSP / LSI 5 performs various digital processes related to the MD reproduction process such as the ATRAC decode process on the digital audio signal input from the MD unit 6 at the high speed during the MD reproduction.
[0019]
The MD unit 6 includes an MD slot-in mechanism, a pickup mechanism, an RF amplifier, and the like.
[0020]
The MD slot-in mechanism has a mechanism for loading or releasing the MD in a loading unit (not shown).
[0021]
The pickup mechanism is configured to move the optical pickup in the radial direction of the disk by a thread in accordance with a control signal from the microcomputer unit 3 when the disk loaded in the loading unit is reproduced, and irradiate the disk with laser light. And a mechanism for extracting data recorded on the disc from the reflected light.
[0022]
In addition, the pick-up mechanism, when recording the disk loaded in the loading section, causes the magnetic head and the optical head arranged with the disk sandwiched between the disk and the radius of the disk at the same time according to a control signal from the microcomputer section 3. It is provided with an operation mechanism that applies a magnetic field corresponding to an audio signal encoded in the MD ATRAC / DSP / LSI 5 to the disc.
[0023]
The RF amplifier extracts an RF signal and the like from the audio data read during MD reproduction, and outputs the extracted data to the MD ATRAC / DSP / LSI 5.
[0024]
The display unit 7 is configured by an LCD (Liquid Crystal Display) or the like, and performs a required display based on the control of the microcomputer unit 3.
[0025]
The key unit 8 has various operation keys such as a reproduction key, a stop key, a dubbing key, and a display key, and outputs an operation signal generated by the key operation to the microcomputer unit 3.
[0026]
The A / D converter 9 converts an analog signal input from the CD DSP / LSI 2 into a digital signal and outputs it to the MD ATRAC / DSP / LSI 5 during analog recording in the MD section 6.
[0027]
The D / A converter 10 converts the digital signal processed by the CD DSP / LSI 2 into an analog signal during CD reproduction by the CD unit 1.
The D / A converter 11 converts a digital signal processed by the MD ATRAC / DSP / LSI 5 into an analog signal during MD reproduction by the MD unit 6.
[0028]
Based on the control signal input from the microcomputer unit 3, the output switching SW (Switch) 12 switches the switch to a terminal on the D / A converter 10 side during CD playback, and D / A during MD playback. A switch is switched to the terminal on the A converter 11 side, and analog sound as reproduced sound is output to the outside via an amplifier circuit (not shown).
[0029]
Next, the operation of the present embodiment will be described.
First, a recording process for recording (copying) music data recorded on a CD into an MD will be described with reference to the flowchart of FIG.
[0030]
When a recording instruction is issued from the CD loaded in the CD section 1 to the MD loaded in the MD section 6 by the key operation of the key section 8, the microcomputer section 3 determines whether the recording instruction is double speed recording. It is determined whether or not (step S1), and if it is a normal speed recording instruction (step S1; NO), recording is started immediately (step S2).
[0031]
If the recording instruction is double speed recording (step S1; YES), the microcomputer unit 3 records the disc information of the CD loaded in the copy source CD unit 1 and the ISRC recorded in the subcode of the CD. Thus, the recording history of the music data for which the recording instruction has been given is acquired (step S3), double speed recording is started, and a part of the music data is recorded in the memory 4 (step S4). Here, the music data to be recorded in the memory 4 may be from the beginning or the middle of the song, and depending on the capacity of the memory 4, it is preferably about several tens of seconds to understand the image of the song.
[0032]
Simultaneously with the start of double-speed recording in step S4, the recording limit timer 31 prohibiting double-speed recording is started, and the countdown of the timer corresponding to 74 minutes is started. When the recording of the designated music data is completed (step S5), the microcomputer unit 3 ends the recording process.
[0033]
Next, the double speed recording possible notification process executed by the microcomputer unit 3 will be described based on the flowchart of FIG.
[0034]
During the time measurement by the timer 31 started in step S4 of FIG. 2, the microcomputer unit 3 always checks whether or not the double speed recording prohibited time (74 minutes) has ended (step S11), and still has the double speed recording prohibited time. If it is within (step S11; NO), the countdown by the timer 31 is continued (step S12).
[0035]
If 74 minutes have elapsed from the start of double speed recording and it is determined that the double speed recording prohibited time has ended (step S11; YES), the microcomputer unit 3 immediately records the audio recorded in the memory 4 in step S4 of FIG. 2 together with the disk information and ISRC. Data is reproduced (step S13). At this time, the microcomputer section 3 displays “permit double speed recording” on the display section 7 to notify that the music data for which double speed recording has been prohibited can be recorded again at double speed.
[0036]
As described above, according to the audio system 100 of the present embodiment, the double-speed recording stored in the memory 4 at the time when the double-speed recording prohibited time has ended without the trouble of performing the double-speed recording operation conventionally. By playing back the audio data that has been prohibited for several tens of seconds, it is possible to instantly notify the user who is a little away from the audio device that the audio data has entered the double-speed recordable state. . Further, by reproducing the audio data for which double speed recording is prohibited, the user can grasp which song can be recorded at double speed.
[0037]
【The invention's effect】
According to the present invention, at the time when the timing of the high-speed recording prohibition time by the time measuring means is completed, the user notifies the sound means that the high-speed recording has been prohibited has shifted to the high-speed recording enabled state, so that the user can It is possible to instantly confirm that the sound data can be recorded at high speed.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a functional configuration inside an audio system 100 to which the present invention is applied.
FIG. 2 is a flowchart showing a recording process in the present embodiment.
FIG. 3 is a flowchart showing a double speed recording possible notification process in the present embodiment.
[Explanation of symbols]
1 CD 2 DSP / LSI for CD
3 Microcomputer unit 31 Timer 4 Memory 5 MD ATRAC / DSP / LSI
6 MD section 7 Display section 8 Key section 9 A / D converter 10, 11 D / A converter 12 Output switching SW (switch)
100 audio system

Claims (2)

In an audio apparatus comprising recording means for copying sound data recorded on a first recording medium to a second recording medium,
When the sound data recorded on the first recording medium is recorded on the second recording medium by the recording means at a high speed, the time measuring means counts a predetermined time for prohibiting the high-speed recording of the sound data again;
Storage means for storing a part of the sound data when high-speed recording of the sound data is performed;
A notification means for notifying, based on the sound data stored in the storage means, that the sound data has shifted to a state capable of high-speed recording when the timing of the high-speed recording prohibition time by the time counting means is completed;
An audio device comprising: 2. The audio apparatus according to claim 1, wherein the notifying unit notifies that the music data has shifted to a state where high-speed recording is possible by reproducing sound data stored in the storage unit.

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