JPH08129795A - Information recorder - Google Patents

Abstract

PURPOSE: To surely detect the date data regardless of the detection direction of the date data by recording headers in front/rear of the main data. CONSTITUTION: At a recording time, a sound signal inputted from a microphone 1 is amplified by a sound recording amplifier 2, and is recorded on a tape 6 by a magnetic head 5 through an R/P changeover switch 4. At this time, the date data formed by a control part 7 is shaped to a rectangular wave shape by a signal shaping circuit 3, and is recorded on the tape 6 together with the sound signal. At a reproducing time, after the sound signal from the tape 6 detected by the magnetic head 5 is amplified a reproducing amplifier 9, is amplified by a power amplifier 11 further to be sound emitted from a speaker 12. Simultaneously, the date data are separated from the sound signal amplified by the reproducing amplifier 9 by an LPF 10. The separated date data are supplied to the control part 7 through a detector 8. The date data are constituted so as to be provided with the headers a, b in front/-rear of the main data m to be recorded on the tape.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording device.

[0002]

2. Description of the Related Art A tape recorder is conventionally known as one of information recording devices, and in addition to a normal information signal, a CU.
Some devices can record date data indicating the time when the E signal (cueing signal) and the CUE signal were recorded. For example, in the case of recording date data on a tape, a header is recorded before this data, and when this header is detected, the pulse train which comes after that is recognized as the date data. It is also common practice to automatically record date data at fixed time intervals during recording, and to continuously record date data during CUE signal recording.

[0003]

As described above, when the header is recorded only before the main data at the time of recording the date data and then reproduced, the tape advances in the FWD (fast forward) direction to move the header and the main data. Since the signals are detected in order, this can be recognized as date data. On the other hand, at the time of SCAN (rewind reproduction), since the tape runs in the REW (rewind) direction, the header was detected after this data and was not recognized as date data and could not be detected. Therefore, SCA
If only N, only the information on the number and type of CUE signals can be obtained, and the information on the time when the CUE signals were recorded cannot be obtained, and it was necessary to reproduce and confirm again.

The information recording apparatus of the present invention has been made in view of such a problem, and its purpose is to make it possible to reliably detect the predetermined data regardless of the detection direction of the predetermined data. To provide a recording device.

[0005]

In order to achieve the above object, the information recording apparatus according to the first invention can record predetermined data having a main data and a header corresponding to the main data on a recording medium. The information recording device records headers before and after this data.

The information recording apparatus according to the second invention is
An information recording device capable of recording date data including a cue signal and a header, and a method of recording the header when recording only the date data and when recording the date data continuously to the cue signal. Be different.

The information recording apparatus according to the third invention is
The date data is composed of this data and the header.When recording only the date data on the recording medium, the header is recorded before this data, and when recording the date data continuously in the cue signal, this data is recorded. Record headers before and after.

[0008]

That is, in the information recording apparatus according to the first aspect of the present invention, when the predetermined data having the main data and the header corresponding to the main data is recorded on the recording medium, the header is recorded before and after the main data. To

The information recording apparatus according to the second invention is
When recording the cue signal and the date data including the header, use different header recording methods when recording only the date data and when continuously recording the date data in the cue signal. .

The information recording apparatus according to the third invention is
When the date data is composed of this data and the header and only the date data is recorded on the recording medium, the header is recorded before this data, and when the date data is continuously recorded in the cue signal, before and after this data. Make sure to record the header in.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a diagram showing the configuration of a magnetic recording / reproducing apparatus to which the present invention is applied. In the figure, the microphone 1 is connected to the R-side contact of the R / P switch 4 via the recording amplifier 2. The speaker 12 is connected to the P-side contact of the R / P changeover switch 4 via the power amplifier 11 and the reproduction amplifier 9. The fulcrum C of the R / P changeover switch 4 is connected to the magnetic head 5 arranged close to the tape 6.

Further, the control unit 7 is connected to the connection point between the recording amplifier 2 and the R / P changeover switch 4 via the signal shaping circuit 3 and the display unit 13 in order to control each unit, and is also detected. It is connected to a connection point between the reproduction amplifier 9 and the power amplifier 11 via a device 8 and an LPF (Low Pass Filter) 10.

In the above structure, at the time of recording, the audio signal input from the microphone 1 is amplified by the recording amplifier 2 and then R
Recording is performed on the tape 6 by the magnetic head 5 through the / P switch 4. At this time, date data, which will be described later, created by the controller 7 is shaped into a rectangular wave by the signal shaping circuit 3 and recorded on the tape 6 together with the audio signal.

On the other hand, at the time of reproduction, after the audio signal from the tape 6 detected by the magnetic head 5 is amplified by the reproduction amplifier 9, it is further amplified by the power amplifier 11 and emitted from the speaker 12. At the same time, the LPF 10 separates date data from the audio signal amplified by the reproduction amplifier 9. The separated date data is supplied to the control unit 7 through the detector 8 and is recognized as date data.

The date data recording operation according to the first embodiment of the present invention will be described below with reference to the flowchart of FIG. First, it stands by until the recording mode is set (step S1), and when the recording mode is entered, it is determined whether or not the recording mode is the CUE signal recording mode (step S2). YE here
In the case of S, the CUE signal is immediately recorded (step S
4) Then, record the date data. That is, FIG.
As shown in, header a, main data m, and header b are sequentially recorded on the tape 6 together with the audio signal (step S
5, S6, S7).

On the other hand, if it is not in the CUE signal recording mode in step S2, it waits until a predetermined time elapses (step S3). The header a, the main data m, and the header b are sequentially recorded together with the audio signal on the tape 6 (steps S5, S6, S7).

FIG. 5 is a diagram showing a specific example of the structure of date data, which includes a header a, a start bit, data,
It is composed of main data consisting of parity and a header b.

Next, the recording operation of date data according to the second embodiment of the present invention will be described with reference to the flowchart of FIG. First, wait until the recording mode is set (step S1
0), when the recording mode is entered, it is determined whether or not the recording mode is the CUE signal recording mode (step S11). YE here
In the case of S, the CUE signal is immediately recorded (step S
13) Then, record the date data. That is, FIG.
As shown in, the header a, the main data m, and the header b are sequentially recorded on the tape 6 together with the audio signal (step S
14, S15, S16).

On the other hand, if the recording mode of the CUE signal is not set in step S11, the system waits until a predetermined time elapses (step S12). When it is judged that the recording is intermittent recording, as shown in FIG. 3, the header a and the main data m are sequentially recorded together with the audio signal on the tape 6 (steps S17 and S18).

The operation of the control unit 7 when reproducing the date data recorded by the method according to the first embodiment described above will be described below with reference to the flowchart of FIG. First, it is judged whether or not it is in the reproduction mode (step S20), and in the reproduction mode, the audio signal is reproduced until the header a is detected (step S21). When the header a is detected, when traveling in the FWD direction. The date data of is detected (step S22). Next, in step S23, the process shifts to the determination as to whether the parity and the data match. That is, a parity check is performed between the detected date data and the data created by the control unit 7, and the date data detected when it is confirmed that they match each other is displayed on the display unit 13 (step S23, S24).

On the other hand, if the reproduction mode is not set in step S20, it is determined whether or not it is the SCAN mode (step S2).
5). If the SCAN mode is not set here, step S2
When the SCAN mode is set, rewinding reproduction is performed until the header b is detected (step S26), and when the header b is detected, the date when traveling in the REW direction is repeated. Data is detected (step S27). Next, in step S28, it is determined whether the parity and the data match, and the date data detected when it is confirmed that the parity and the data match is displayed on the display unit 13 (step S2).
8, S29).

The procedure for reproducing the date data recorded by the recording method of the first embodiment has been described above, but the same applies to the case of reproducing the date data recorded by the recording method of the second embodiment.

According to the first embodiment described above, the date data can be reliably detected regardless of the tape running direction. Therefore, there is no need to reproduce and confirm again as in the conventional case.

Further, according to the second embodiment described above, date data necessary for display can be reliably detected regardless of the tape running direction. In addition, date data that does not need to be displayed is not displayed in SCAN mode.
Since the information regarding the number and types of UE signals and the date data at the time of recording the CUE signal are displayed, the display is easy to see.

Since the date data is digital information as shown in FIG. 5, the information can be read even if it is detected from the REW direction. As described above, the information recording apparatus of the present embodiment can record the predetermined data (date data) having the main data m and the headers a and b corresponding to the main data m on the recording medium (tape 6). The device records headers a and b before and after the main data m.

Further, the information recording apparatus of this embodiment is an information recording apparatus capable of recording the cue signal (CUE signal) and the date data including the headers a and b, and when recording only the date data. And the recording method of the headers a and b is made different when recording the date data continuously in the cue signal.

For example, the date data is composed of the main data m and the headers a and b. When only the date data is recorded on the recording medium (tape 6), the header a is recorded before the main data m, and the head When date data is continuously recorded in the output signal, headers a and b are recorded before and after the main data m.

Further, the technical idea of the following constitution is derived from the above-mentioned specific embodiment, and the following effects are exhibited. (1) An information recording device capable of recording the main data and predetermined data having a header corresponding to the main data on a recording medium, wherein the header is recorded before and after the main data. (2) An information recording device capable of recording a cue signal and date data including a header, the header being used when recording only the date data and when recording the date data continuously to the cue signal. An information recording apparatus characterized by different recording methods. (3) When the date data is composed of this data and a header and only the date data is recorded on the recording medium, the header is recorded before this data, and the date data is continuously recorded in the cue signal. Is an information recording device characterized by recording headers before and after this data. (4) A recording medium characterized in that predetermined data having a header is recorded before and after this data. (5) An information recording device capable of detecting the predetermined data at the time of rewinding reproduction from a magnetic tape in which predetermined data having headers before and after this data is recorded. (6) In a magnetic recording / reproducing device having a recording / reproducing function of predetermined data, a header of predetermined data is recorded before and after this data, and the predetermined data can be detected from either the FWD or REW direction. Magnetic recording / reproducing device. (7) Recording of date data in a magnetic recording / reproducing apparatus having a function of recording or detecting CUE signal and date data, during automatic intermittent recording in normal recording and in the case of recording date data continuously in the CUE signal A magnetic recording / reproducing apparatus characterized by changing a method. (8) In the magnetic recording / reproducing apparatus according to the above configuration (7), when the header is recorded before the main data and the date data is continuously recorded in the CUE signal during the automatic intermittent recording in the normal recording. A magnetic recording / reproducing apparatus characterized in that a header is recorded before and after this data. (9) The magnetic recording / reproducing apparatus according to the above configuration (7), further comprising a SCAN function, and detecting date data even during SCAN.

According to the information recording apparatus having the above-mentioned structure (1), the predetermined data can be surely detected regardless of the detection direction of the predetermined data. According to the information recording apparatus having the above-described configuration (2) or (3), for example, date data necessary for display or the like can be surely detected regardless of the date data detection direction.

According to the recording medium having the above-mentioned structure (4), when the predetermined data is detected from the recording medium, the predetermined data can be surely detected regardless of the detection direction.

According to the information reproducing apparatus having the above structure (5), it is possible to reliably detect the predetermined data regardless of the detection direction of the predetermined data. According to the magnetic recording / reproducing apparatus having the above configuration (6), it is possible to reliably detect the predetermined data regardless of the detection direction of the predetermined data.

According to the magnetic recording / reproducing apparatus having any one of the above configurations (7), (8) and (9), for example, the date data necessary for display or the like is irrespective of the detection direction of the date data. Can be reliably detected.

[0033]

According to the invention described in claim 1, there is an effect that the predetermined data can be surely detected regardless of the detection direction of the predetermined data. Further, according to the invention described in claim 2 or 3, there is an effect that the necessary date data can be surely detected regardless of the detection direction of the date data.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a magnetic recording / reproducing apparatus to which the present invention is applied.

FIG. 2 is a diagram showing a structure of date data recorded in the first embodiment.

FIG. 3 is a diagram showing a structure of date data recorded in a second embodiment.

FIG. 4 is a diagram showing a structure of date data recorded in a second embodiment.

FIG. 5 is a diagram showing a specific configuration example of date data.

FIG. 6 is a flowchart for explaining a date data recording operation according to the first embodiment.

FIG. 7 is a flowchart for explaining a date data recording operation according to the second embodiment.

FIG. 8 is a flowchart for explaining an operation when reproducing date data recorded by the recording method according to the first and second embodiments.

[Explanation of symbols]

1 ... Microphone, 2 ... Recording amplifier, 3 ... Signal shaping circuit, 4 ...
R / P switch, 5 ... magnetic head, 6 ... tape, 7 ... control unit, 8 ... detector, 9 ... reproduction amplifier, 10 ...
LPF, 11 ... Power amplifier, 12 ... Speaker, 13 ...
Display section.

Claims (3)

[Claims] 1. An information recording apparatus capable of recording main data and predetermined data having a header corresponding to the main data on a recording medium, wherein the header is recorded before and after the main data. . 2. An information recording device capable of recording a cue signal and date data including a header, wherein only the date data is recorded and when the date data is continuously recorded in the cue signal. An information recording apparatus characterized in that the method of recording the header is different. 3. The date data is composed of this data and a header. When only the date data is recorded on a recording medium, the header is recorded before this data and the date data is continuously recorded in the cue signal. An information recording device characterized by recording a header before and after this data.