JP2002358767A - Audio system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an audio system which is capable of comfortable double- speed recording by instantaneously reporting the transition of music data in the state of disabling double-speed recording to the state of enabling double- speed recording. SOLUTION: When double-speed recording of audio data recorded on a CD to an MD is started, in order to inhibit double-speed re-recording of the audio data just for fixed time (74 min), a timer 31 starts counting-down corresponding to the double-speed recording inhibition time (74 min). At a time point when counting of this double-speed recording inhibition time is finished (step S11: YES), a microcomputer part 3 reports the transition of audio data with which double-speed recording is inhibited, to the state of enabling double-speed recording by reproducing one part of audio data saved in a memory 4 (step S13).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an audio device.

[0002]

2. Description of the Related Art Recently, music data has been transferred to a music CD (Compac
Audio equipment capable of copying from a recording medium such as a disc (Disc) to a recording MD (Mini Disc) has 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 higher), a certain time (74 hours) from the start of the recording for copyright protection. ), The same music data cannot be recorded again on another MD at double speed. In conventional audio equipment, if a double-speed recording operation is performed again during the double-speed recording prohibition time, the display shows the time until the song specified for recording becomes double-speed recording. The user is notified that recording is not allowed. In this case, the user either waits for the displayed time,
Switching to normal speed allows re-recording.

[0003]

However, in the conventional audio equipment, when the above-mentioned restrictions of copyright protection and the like are met, when the desired music data can be recorded at a double speed, a double speed recording operation is performed. Unless it was not displayed on the display, it could not be confirmed. Similarly,
As to which music data can be recorded at a double speed, there is a problem that it is not known unless a double speed recording operation of each music data is performed, and the usability is not good.

An object of the present invention is to provide an audio apparatus capable of performing comfortable double-speed recording by instantly notifying that music data which has been in a double-speed recording disabled state has shifted to a double-speed recording enabled state. .

[0005]

According to the present invention, there is provided an audio apparatus having recording means for copying sound data recorded on a first recording medium to a second recording medium. The sound data recorded on the medium is
When performing high-speed recording on a recording medium, time-measuring means for measuring a predetermined time to prohibit high-speed recording of the sound data again,
When high-speed recording of the sound data is performed, storage means for storing a part of the sound data, and when the timing of the high-speed recording prohibition time by the timing means ends, the sound data is set to a high-speed recordable state. And notifying means for notifying the shift based on the sound data stored in the storage means.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. First, the configuration will be described.

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, the audio system 100 includes a CD unit 1, a DSP / LSI 2 for a CD, a microcomputer unit 3, an A
TRAC / DSP / LSI 5, MD unit 6, display unit 7, key unit 8, A / D converter 9, D / A converter 10,
11, an output switch SW12.

[0008] The CD section 1 is provided with a CD loading mechanism, a pickup mechanism, an RF amplifier and the like.

The CD loading mechanism has a mechanism for loading a CD into a loading section (not shown) or releasing the CD.

The pickup mechanism moves the optical pickup in the radial direction of the disk by a thread (not shown) in response to a control signal from the microcomputer unit 3 during reproduction of the disk loaded in the loading unit. And a mechanism for extracting data recorded on the disk from the reflected light by irradiating the disk with laser light.

The RF amplifier extracts an RF signal and the like from audio data read at the time of CD reproduction, and outputs the extracted data to the DSP / LSI 2 for CD.

A track name (song name),
Information such as the recording date and time, start address, and end address of each track is recorded as TOC (Table Of Contents) information. The subcode of the CD includes an ISRC (International Standard) for discriminating audio recording and audiovisual recording by digitally common means internationally.
A recognition code called “rd Recording Code” is recorded for each song.

DSP / LSI (Digital Signal P for CD)
rocessor Large Scale Integrated circuit) 2 is CD
At the time of reproduction, an EFM (Eight to Fourteen Modu) is applied to a normal speed or double speed digital audio signal input from the CD unit 1.
lation) Digital processing such as decoding processing related to CD reproduction processing is performed at high speed.

The microcomputer unit 3 has a CPU (Ce
ntral Processing Unit), ROM (Read Only Memor)
y) (neither is shown), a microcomputer having a timer 31, and
The CPU reads various operation programs stored in the ROM and executes various control processes.

More specifically, when a double-speed recording instruction from a CD to an MD is issued by a key operation of the key unit 8, the microcomputer unit 3 performs a recording process for storing a part of audio data to be double-speed-recorded in the memory 4. (See FIG. 2). In this recording process, at the same time as the start of the double speed recording, the timer 31 is started, and the countdown corresponding to the double speed recording prohibition time (74 minutes) is started. The timer 31 has a function as a timer for counting the double-speed recording prohibition time.

When the timer 31 finishes measuring the double-speed recording prohibition time, the microcomputer unit 3 stores in the memory 4 that the voice data for which double-speed recording has been prohibited has shifted to the double-speed recording enabled state. 3 has a function as a notifying unit for notifying by reproducing the sound data (see FIG. 3).
Double-speed recording possible notification process).

The memory 4 stores a part (about several tens of seconds) of audio data to be recorded at the time of double-speed recording from a CD to an MD, and has a function as storage means.

ATRAC, DSP, LSI for MD (Adap
tive TRansform Acoustic Coding Digital Signal Proc
essor Large Scale Integrated circuit) 5 is a digital DSP (or analog recording) DSP CD L
ATRAC encoding processing for various digital music data input from SI2 (or A / D converter 9),
And various digital signal processing related to MD recording processing, such as temporary recording of music data, is performed at high speed. ATR for MD
The AC / DSP / LSI 5 performs, at the time of MD playback, high-speed various digital processing related to MD playback processing such as ATRAC decoding processing on a digital audio signal input from the MD unit 6.

The MD section 6 includes an MD slot-in mechanism, a pickup mechanism, an RF amplifier and the like.

The MD slot-in mechanism has a mechanism for loading an MD into a loading section (not shown) or releasing the MD.

The pickup mechanism moves the optical pickup in the radial direction of the disk by a thread in response to a control signal from the microcomputer unit 3 when reproducing the disk loaded in the loading unit, and irradiates the disk with laser light. Then, a mechanism for extracting data recorded on the disc from the reflected light is provided.

Further, the pickup mechanism simultaneously controls the magnetic head and the optical head, which are disposed across the disk, by a thread according to a control signal from the microcomputer unit 3 when recording the disk loaded in the loading unit. Move in the radial direction of the disk, and use the MD ATRAC DS
An operation mechanism for applying a magnetic field corresponding to the audio signal encoded by the P / LSI 5 to the disk is provided.

The RF amplifier extracts an RF signal or the like from audio data read at the time of MD reproduction, and outputs the extracted data to the ATRAC / DSP / LSI 5 for MD.

The display unit 7 is an LCD (Liquid Cry).
stal Display) and performs required display based on the control of the microcomputer unit 3.

The key section 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 by a key operation to the microcomputer section 3.

The A / D converter 9 converts an analog signal input from the CD DSP / LSI 2 into a digital signal at the time of analog recording in the MD
・ Output to DSP / LSI5.

The D / A converter 10 converts a digital signal processed by the CD DSP / LSI 2 into an analog signal when the CD section 1 reproduces a CD. The D / A converter 11
At the time of MD playback in MD section 6, ATRAC / DSP for MD
Convert the digital signal processed by the LSI 5 to an analog signal.

The output switch SW (Switch) 12 switches a switch to a terminal on the D / A converter 10 side during CD reproduction based on a control signal input from the microcomputer section 3 and performs a switch during MD reproduction. Switch to the terminal on the side of the D / A converter 11 to convert analog audio as reproduced audio to
It is output to the outside via an amplifier circuit (not shown).

Next, the operation of this embodiment will be described. First, a recording process of recording (copying) music data recorded on a CD to an MD will be described with reference to the flowchart of FIG.

By the key operation of the key section 8, the CD loaded in the CD section 1 is replaced with the MD loaded in the MD section 6.
When a recording instruction is given to the microcomputer 3, the microcomputer unit 3 determines whether or not the recording instruction is double-speed recording (step S1). If the recording instruction is a normal-speed recording instruction (step S1; NO), the microcomputer unit 3 immediately starts recording. Start (step S2).

If the recording instruction is a double-speed recording (step S1; YES), the microcomputer unit 3 sets the copy source C
The disc information of the CD loaded in the D unit 1 and the CD information
The recording history of the music data for which recording was instructed is obtained from the ISRC recorded in the sub-code (step S).
3) 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 of the music or from the middle of the music.

Simultaneously with the start of the double-speed recording in step S4, the recording limit timer 31 for prohibiting the double-speed recording is activated, and starts counting down the timer corresponding to 74 minutes. When the recording of the designated music data is completed (step S
5), the microcomputer section 3 ends the main recording process.

Next, a description will be given of the double-speed recording possible notification processing executed by the microcomputer unit 3 with reference to the flowchart of FIG.

Timer 3 started in step S4 of FIG.
During the time counting by 1, the microcomputer unit 3 constantly checks whether or not the double-speed recording prohibition time (74 minutes) has ended (step S11). If the time is still within the double-speed recording prohibition time (step S11; NO) ), The countdown by the timer 31 is continued (step S12).

When 74 minutes have elapsed since the start of the double-speed recording and it is determined that the double-speed recording prohibited time has ended (step S11;
YES), the microcomputer unit 3 immediately sends the disc information or IS
Along with the RC, the audio data recorded in the memory 4 in step S4 of FIG. 2 is reproduced (step S13). Also,
At this time, the microcomputer unit 3 displays “double-speed recording permitted” on the display unit 7 to notify that the double-speed recording of the music data for which double-speed recording has been prohibited is enabled again.

As described above, according to the audio system 100 of the present embodiment, when the double-speed recording prohibition period ends, the audio data is stored in the memory 4 without performing the double-speed recording operation as in the related art. By playing back the audio data for which double-speed recording was prohibited for several tens of seconds, even a user slightly away from the audio device is instantly notified that the audio data has shifted to the double-speed recording enabled state. be able to. In addition, by playing back the audio data for which double-speed recording has been prohibited, the user can know which song has been enabled for double-speed recording.

[0037]

According to the present invention, when the timing of the high-speed recording prohibition time by the timing means ends, the notifying means notifies that the sound data, for which high-speed recording has been prohibited, has shifted to the high-speed recording enabled state. Thus, the user can 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 according to the embodiment.

FIG. 3 is a flowchart showing double-speed recording possible notification processing in the present embodiment.

[Explanation of symbols]

 Reference Signs List 1 CD unit 2 CD DSP / LSI 3 microcomputer unit 31 Timer 4 Memory 5 MD ATRAC / DSP / LSI 6 MD unit 7 Display unit 8 Key unit 9 A / D converter 10, 11 D / A converter 12 Output switching SW (switch) 100 audio system

Claims (2)

[Claims] 1. An audio apparatus comprising recording means for copying sound data recorded on a first recording medium to a second recording medium, wherein the recording means converts the sound data recorded on the first recording medium to When high-speed recording on the second recording medium, time-measuring means for measuring a predetermined time for prohibiting the high-speed recording of the sound data again, and a part of the sound data when the high-speed recording of the sound data is performed. Storage means for storing, when the timing of the high-speed recording prohibition time by the timing means ends, notifying that the sound data has shifted to a high-speed recording enabled state based on the sound data stored in the storage means. An audio device, comprising: 2. The apparatus according to claim 1, wherein said notifying means notifies that the music data has shifted to a high-speed recording enabled state by reproducing sound data stored in said storage means. Audio device.