JPH10177770A - Recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording and reproducing device in which convenience of a user is improved by dissolving trouble that source information of a program already recorded cannot be displayed at the time of reproducing. SOLUTION: This recording and reproducing device is constituted with a recording medium 1, a microcomputer 2, a signal processor 4 provided with a digital input 3, an A/D-D/A 5, an analog input 6, an analog output 7, and a display device 8 such as a liquid crystal display panel and the like. In a microcomputer 2, for example, one music of an input program is a digital input, a category is a CD, a sampling frequency 44.1kHz is detected, 'CD 44K' is recorded as name data of one music of user table of contents(UTOC) 1. And at the time of reproduction, input source information is displayed on a name data display of a display device 8. Thereby, a user can easily recognize source information of a program already recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording and reproducing apparatus such as a mini-disc player, and more particularly, to recording source information together with a program at the time of recording and displaying the source information on a display at the time of reproducing. In addition, the present invention relates to a recording and reproducing device with improved user convenience.

[0002]

2. Description of the Related Art Conventionally, recording and reproducing devices such as a digital audio tape recorder DAT (hereinafter simply referred to as "DAT") and a mini-disc player MD have been used in a C / C system.
Recording from digital audio equipment having a digital audio interface such as a D player, a BS tuner, and a DAT is enabled. Digital audio equipment uses a sampling frequency Fs for quantization (digitization in the amplitude axis direction).
For example, in a CD player, 44.1KH
z, BS tuner 32K and 48KHz, DAT
In 16K by 32K, 44.1K and 48KHz etc.
Bit linear quantization is employed.

[0003] Digital audio equipment provided with these digital audio interfaces has been
When recording on a recording and playback device such as T or a mini-disc player MD, the sampling frequency (32K, 44.1K and 48KHz) of the input program during recording.
Etc.), category of input program (CD, MD, DA)
T, BS, and a digital amplifier with a built-in D / A converter, etc., which are identified and displayed on a display device, are on the market.

However, the conventional recording and reproducing apparatus displays the source information of the input program during recording, and does not display the details of the source information of the recorded program during reproduction. That is, there is a possibility that a digital signal of 32K or 48KHz is inputted from the BS tuner of the same category, and when a sampling frequency is frequently switched and recorded by a conventional recording and reproducing apparatus, it is reproduced later. At that time, it was not clear whether the program was recorded at a sampling frequency of 32 kHz or at a sampling frequency of 48 kHz, which was inconvenient for the user.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above point of view, and has as its object the disadvantage that the details of the source information of a recorded program cannot be displayed at the time of reproduction in a conventional recording and reproducing apparatus. It is an object of the present invention to provide a recording and reproducing apparatus which solves the above problem and improves user convenience.

[0006]

According to a first aspect of the present invention, there is provided a recording medium comprising a management area and a program area, wherein a digital signal comprising main data and sub data supplied from a reproducing side is provided. Digital input means for inputting a digital signal, and sub-data such as a sampling frequency of the digital signal included in the digital signal input from the digital input means and a category indicating a source name of the digital signal. And a recording unit for recording the sub-data extracted by the extracting unit in the management area of the recording medium and recording the main data in the program area.

According to a second aspect of the present invention, there is provided a reproducing apparatus for reproducing recorded information from a recording medium having a management area and a program area, comprising: a reproducing means for reproducing sub-data recorded in the management area; Display means for displaying source information such as a sampling frequency and a category of main data recorded in the program area based on the sub data reproduced by the reproducing means.

The recording and reproducing apparatus of the present invention automatically records, for example, a sampling frequency of a digital signal contained in the digital signal and a category indicating a source name of the digital signal together with a program at the time of recording, and reproduces the source information at the time of reproduction. Is displayed on the display device, so that the user can easily recognize the sampling frequency of the recorded program and the category indicating the source name of the digital signal, eliminating the need to transfer the input source to the index sheet. Convenience can be improved.

[0009]

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

First, the configuration of a recording / reproducing apparatus according to the present invention will be described with reference to FIGS. FIG. 1 is a diagram showing an example of a digital audio interface format according to the present invention, and FIG. 2 is a block circuit diagram showing an example of a recording and reproducing device of the present invention. Note that components other than those shown in the figure are the same as conventionally known components, and a description thereof will be omitted.

According to the present invention, source information of an input program at the time of recording is automatically written into, for example, a name data area of a UTOC (User Table Of Contents) of a mini-disc player MD, and the name data is reproduced on a display device at the time of reproduction. The display allows the user to recognize the source information at the time of recording the recorded program.

The source information at the time of recording is a digital audio interface format (EIAJ CP-340 and CP-120) as shown in FIG.
1) and a sampling frequency (2) of an input program input from a digital audio device having the above (1). For example, the category code "10000000" is a two-channel compact disc player (CD), and "11000000" is a two-channel digital audio tape recorder (DAT). Also, the sampling frequency “000”
“0” is 44.1 KHz and “0100” is 48 KH
z and the like.

As shown in FIG. 2, the recording and reproducing apparatus of the present invention comprises a recording medium 1, a microcomputer 2, a signal processing 4 having a digital input 3, an A / D conversion for input and output processing, and the like. It comprises an A / D / D / A 5 for performing D / A conversion, an analog input 6, an analog output 7, and a display device 8 such as a liquid crystal display panel.

The operation of the recording and reproducing apparatus according to the present invention having the above-mentioned configuration will be described with reference to FIGS. FIG. 3 is a diagram showing an example of a sampling frequency / category / name data comparison table in the recording and reproducing apparatus of the present invention.

In FIG. 2, a signal from a digital input 3 is input to a signal processor 4. The signal processing 4 sends the sampling frequency and category code (see FIG. 1) in the channel status to the microcomputer 2. In the microcomputer 2, based on the sampling frequency / category / name data comparison table as shown in FIG.
The name data is recorded in the UTOC sector 1 of the recording medium 1 during recording. As an example, the first program of the input program is a digital input, code information having a category of CD and a sampling frequency of 44.1 KHz is detected, and “CD 44K” is recorded as UTOC name data of the first program during recording on the recording medium 1. It is recorded in the name data area of sector 1.

The second song is 32KH from BS
Assuming that the third track is 48 KHz from the BS and the fourth track is an analog input, the category of the second track is BS and the sampling frequency is 32 KHz. The category of the third track is BS.
The sampling frequency is 48 KHz, the code for the fourth track is an analog input, and the name data area (name slot) of each UTOC sector 1 has "BS".
32K "," BS 48K ", and" Analog ".

When the recording medium 1 recorded in this way is reproduced, the input source information of the name data area of the reproduced UTOC sector 1 is detected together with the reproduced sound (not shown) of the recording medium 1 and the display device 8 , The input source information of the first to fourth songs is displayed.
As a result, the user can easily recognize the sampling frequency and category of the recorded program, and it is not necessary to transfer the input source to the index sheet, thereby improving the user's convenience. That is, the index sheet of the cassette tape has a place for inputting an input source, so that whether the input source is a CD or a BS can be written. When the category of the input source is automatically written on the recording medium 1, it is not necessary to transfer the input source to this index sheet, which is convenient.

The sampling frequency and category are not recorded uniformly, and recording or non-recording can be selected by setting a switch (not shown). Then, if non-recording is selected by a switch, the conventional usage can be performed. The sampling frequency and the category may be displayed not only on the display device 8 but also from a speaker or the like (not shown). The circuit configuration of the recording / reproducing apparatus according to the present invention is not limited to the above-described one, and it goes without saying that another configuration having the same function may be used.

The present invention is not limited to the above embodiment,
Various embodiments can be employed. For example, the recording / reproducing apparatus of the present invention is not limited to a DAT or a mini-disc player MD, and may be a DVD (Digital Video Video) to which a recordable / reproducible optical disk to be developed in the future is applied.
Discs) can also be applied. In addition, it goes without saying that the present invention can be developed in various forms without being limited to the embodiment described above.

[0020]

As is apparent from the above description, according to the recording / reproducing apparatus of the present invention, the input program automatically converts the source information such as the sampling frequency and the category when the input program is an analog input or a digital input. Since the source information is recorded on the display device at the time of reproduction and reproduced, the user can easily identify the source information of the recorded program. Thereby, the convenience for the user can be further improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a digital audio interface format according to the present invention.

FIG. 2 is a block circuit diagram illustrating an example of a recording and reproducing device according to the present invention.

FIG. 3 is a diagram showing an example of a sampling frequency / category / name data comparison table in the recording and reproducing apparatus of the present invention.

[Explanation of symbols]

1 recording medium, 2 microcomputer, 3 digital input, 4 signal processing, 5 A / D / D / A, 6 analog input, 7 analog output, 8 display apparatus

Claims (8)

[Claims] 1. A recording apparatus for recording a digital signal composed of main data and sub-data supplied from a reproducing side on a recording medium having a management area and a program area, wherein the digital signal is inputted. Extracting means for extracting sub-data included in the digital signal input from the digital input means; recording the sub-data extracted by the extracting means in a management area of the recording medium; A recording device comprising: recording means for recording in an area. 2. The recording apparatus according to claim 1, wherein the sub-data includes a sampling frequency of a digital signal supplied from the reproducing side. 3. The recording apparatus according to claim 1, wherein the sub data includes category information indicating a source name of a digital signal supplied from the reproduction side. 4. The recording device further includes an analog input unit, a determination unit configured to determine from which of the analog input unit and the digital input unit a signal is input, and a determination result by the determination unit; 2. The recording apparatus according to claim 1, further comprising: recording means for recording an identifier indicating a signal type as sub data in a management area of the recording medium when the input signal is determined to be an analog input. 5. A reproducing apparatus for reproducing recorded information from a recording medium having a management area and a program area, comprising: a reproducing unit for reproducing sub-data recorded in the management area; Display means for displaying source information of the main data recorded in the program area based on the sub-data reproduced by the reproducing apparatus. 6. The reproducing apparatus according to claim 5, wherein the source information includes a sampling frequency of an information source of main data recorded in the program area. 7. The reproducing apparatus according to claim 5, wherein the source information includes category information indicating an information source name of main data recorded in the program area. 8. The reproducing apparatus according to claim 5, wherein the source information indicates an identifier of whether the main data recorded in the program area is an analog input or a digital input.