KR940010812B1 - Recording and displaying device using round type material - Google Patents

Abstract

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Description

Recording and playback device using disc shaped recording medium

1 is a block diagram showing an embodiment of the present invention.

2 is a flowchart for explaining the operation of FIG.

3 is a view showing an example of a display method according to the present invention.

4 is a flowchart showing the detailed operation of FIG.

5 is a perspective view of an apparatus according to the present invention.

6 is a block diagram of a disk drive unit.

* Explanation of symbols for main parts of the drawings

1A, 1B: Playhead 6: Indicator

7: RF detection circuit 8: data multiple detection circuit

9: CPU (CPU) 10: RAM

39: search button

The present invention relates to a recording / reproducing apparatus using a disk-shaped recording medium suitable for recording information on a disk-shaped recording medium such as a magnetic sheet desk and reproducing it.

In the recording and reproducing apparatus using the disc-shaped recording medium, the recording state of each recording track is determined by the output of the reproduction head, and each recording track is stored in a memory having an address corresponding to each recording track according to the discriminating output. The recording status of the tracks can be memorized and the recording status of all tracks can be displayed at once by reading them by pressing the search button.

Conventionally, there has been no analog video signal recording medium that can be re-recorded, and thus there is no limitation on how to express what information is recorded on the disc shaped recording medium.

When the track information is required by the user, it is desired that an intuitive display is displayed on the display by the operation of one button.

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and a circle capable of displaying on the display as information on whether the disc-shaped recording medium is used, which track is empty, or whether the used track is field recording or frame recording, etc. A recording and reproducing apparatus using a half-phase recording medium is provided.

The recording and reproducing apparatus using the disc-shaped recording medium according to the present invention is characterized in that the reproducing heads 1A and 1B are configured to be movable in a radial direction with respect to a recording medium having a plurality of recording tracks concentrically. Discriminating means (7) and (8) for receiving an output and determining a recording state of each recording track, and a memory (10) having an address corresponding to each recording track in accordance with the output of the determining means, The recording state of each recording track is stored in the memory so that the recording state of all recording tracks can be displayed at once.

The playback heads 1A and 1B scan radially a recording medium having a plurality of recording tracks in a concentric manner, and the recording state of each recording track at the output of the playback head, i. If the track has been recorded, information such as field recording or frame recording is discriminated by the discriminating means 7 and 8 and stored in the memory 10 having the corresponding address. Then, by pressing a specific button, for example, the search button 39, the recording state of all the recording tracks is displayed at once by the indicator 6.

This makes it possible to immediately identify what information is recorded on the disc recording medium.

Next, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6.

FIG. 1 schematically shows the overall configuration of this embodiment, in which (1A) and (1B) are radii with respect to a recording medium 26 (FIG. 6) having a plurality of recording tracks concentrically. The reproducing head 2 configured to be movable in the direction is a reproducing amplifier which amplifies a signal reproduced by the reproducing heads 1A and 1B, and the signal from the reproducing amplifier 2 is subjected to signal processing by the video processing circuit 3. Then, it is supplied to one input side of the adder 4, and is added to the control signal supplied from the display control circuit 5 to the other input side of the adder 4, and displayed on the display 6.

Numeral 7 denotes an RF detecting circuit for detecting an RF signal at the output of the reproduction amplifier 2, numeral 8 indicates whether the content is field recording information or frame recording information at the output of the RF detecting circuit 7; It is a data multiplex detection circuit for detecting information or audio information. Each information from the data multiplex detection circuit 8 is stored in the RAM 10 under the control of the central processing unit (CPU) 9. Reference numeral 11 denotes an input / output circuit, and 12 denotes a head access circuit, and the head access circuit 12 controls the motor 27 (FIG. 6) for driving the reproduction heads 1A and 1B. Reference numeral 13 denotes a home position detection circuit for detecting the first home position accessed by the head, and 14 denotes a ROM in which a program for controlling the entire system is stored in advance.

Now, let's say that the disk 26 is not used or not. In addition, when the use is finished, to find out what information is recorded and whether there is an empty track, as shown in FIG. 2, the power switch button 21 (FIG. 5) of the apparatus is inserted in step (a). In step (b), it is detected whether the disk 26 is inserted into the jacket 22 (FIG. 5), and if not, it waits until it is inserted. The disk 26 is loaded at the step (c) into which the disc 26 is inserted, and when loaded, the RF signal is automatically searched at the step (d) to detect the RF signal at the RF detection circuit 7 and again. Each piece of information is detected by the data multiplex detection circuit 8 and stored in the RAM 10.

Next, at step E, it is detected whether the search button 39 (FIG. 5) is pressed, and if it is not pressed, it waits until it is pressed. When the search button 39 is pressed, in step (bar), under the control of the CPU 9, each piece of information stored in the RAM 10 is read out and displayed by the display 6 as shown in FIG. In Fig. 3, a denotes a track where field recording has been completed, and here, field information is recorded in the first, sixth and eighth tracks, respectively. B and c denote tracks in which frame recording has been completed, in which the second and third tracks, the 20th and 21st tracks, and the 22nd and 23rd tracks each contain one frame information in two tracks. Indicates that is recorded. D denotes a track in which digital data information has been recorded, and e denotes a track in which audio information has been recorded. In this case, digital data information is recorded in the 26th and 27th tracks, and audio information is recorded in the 29th track. It is shown. The remaining tracks represent empty tracks in which nothing is recorded.

Next, in step 4, it is detected whether the pressing of the search button 39 is released or not, and if it is not released, the display state continues. When the pressing of the search button 39 is released, the flow advances to step (a) to stop the display by the indicator 6.

4 shows a subroutine of step (d) of FIG. 2, in which a predetermined track, for example, the 50th track is designated at step (step), and at step (difference), RF signal is recorded on the track. The RF detection circuit 7 detects whether or not it is written, and if so, proceeds to step (k) to determine whether the information contained in the RF signal belongs to field information, frame information, digital data information, or audio information. Detection is performed by the detection circuit 8. Then, at step (ta), the detected information is stored in the ROM 10 under the control of the CPU 9.

Next, the process advances to the wave (wave) to designate the next track, that is, the 49th track. If no RF signal is recorded in the track at step (step), the process immediately goes to step (wave). The process then advances to the step (below) and checks whether N = 0 or not, otherwise returns to the step (difference) and repeats the above-described operation. Finally, when N = 0, that is, when the check up to the first track is completed, the flow advances to step (ka) to terminate the operation of the subroutine.

FIG. 5 shows the appearance of the apparatus, in which (20) is a main body, (21) is a power switch button, (22) is a jacket, and this jacket 22 is configured as a sixth diagram. . That is, in FIG. 6, reference numeral 23 denotes a spindle motor, 24 denotes a shaft connecting the spindle motor 23, 25 denotes a disc bearing attached to the shaft 24, and 26 denotes a disc bearing. A magnetic sheet disc mounted on (25), (27) is a head feed motor, (28) is a shaft connected to this motor (27), (29) is attached a head (1A), (1B), and a disk (26). Is a head support moving in the radial direction.

Back to the 5th road, 30 is the EJECT button, 31 is the STOP button, 32 is the PLAY button, and 33 and 34 are used for head transfer. The minus (-) and plus (+) buttons, (35) are the REC (REC) buttons, and (36) are the STANDBY buttons.

(37), (38) and (39) are buttons for CRT DISPLAY, (37) is ID button, (38) is TRACK button, and (39) is SEARCH Button. When the identification button 37 is pressed, the identification number to be multi-recorded in the recording and standby mode is displayed, and the identification number multi-recorded in the track during disc playback in the play mode is displayed. In addition, when the track button 38 is pressed, the track address in which the recording, standby mode, play mode or mode current head is present is displayed. When the search button 39 is pressed, the search results as described above are displayed on the display at once for each piece of information.

(40), (41), (42), and (43) are buttons for recording mode, (40) is a field button, (41) is a frame button, and (42) is a review. (REVIEW) button, 43 is a CONT button. In the recording mode, when the field button 40 is pressed, recording information is field recorded, and when the frame button 41 is pressed, the recording information is frame recorded. When the review button 42 is pressed, recording is performed on the current track, and then the head is placed in the play mode immediately to play the recorded signal. If the continuous button 43 is pressed, recording is made on the current track, and then the head moves to the next track to record information continuously.

44, 45, and 46 are buttons for input selection, 44 are video input buttons, 45 are RGB input buttons, and 46 are dubbing input buttons. (47) is a forced field (FIELD ONLY) button which is pressed when the screen being played in a frame is forcibly viewed in the field. When this button 47 is pressed, the playback is regarded as all alone (field) when the memory state is ignored. Mode. That is, the designated track and the playback track coincide.

Next, the procedure in the recording mode will be described. First, the power switch button 21 is pressed to insert the disc into the jacket 22. As soon as the disc is inserted, RF search is automatically performed, and empty track information is stored in the memory. Next, the standby button 36 is pressed. Then send the head to the address you want to record. Press the plus button 34 once when the head is sent in the inner circumferential direction of the disc, and press the minus button 33 once when the head is sent in the outer circumferential direction of the disc. Next, the recording button 35 is pressed to enter the recording state. When the stop button 31 is pressed after recording is finished, the standby mode is canceled. Further, when the play mode is pressed, the standby mode is directly entered, and when the eject button 30 is pressed, the disc is directly ejected in the standby mode.

Next, the procedure in the playback mode will be described. First, the power switch button 21 is pressed to insert the disc into the jacket 22. Next, the play button 32 is pressed. The play lamp lights up in play mode for the current track on the head. The field lights when the track being recorded in the field is playing, and the frame lamp lights when the track being recorded in the frame is being played. In either mode, the device identifies and automatically switches to the RF signal. Next, send the head to the track address you want to play. Pressing the plus button 34 or the minus button 33 continuously causes the first track to continue to send the head at a predetermined speed faster than the first track after the second track. Picture search can be performed on the screen.

When playback ends, the stop button 31 is pressed. Standby and eject are also accepted. In the stop mode, the spindle motor stops and the head touches the disk.

In the reproducing mode, when a track is designated, the reproducing mode is determined depending on which pair and single is specified in the memory. That is, in a recording medium in which field information and frame information are mixed, the playhead can access a designated track in the shortest time.

As described above, according to the present invention, the recording state of each recording track is determined and stored in the memory, and the recording state of all the recording tracks can be displayed all at once by pressing the search button. It is convenient for handling because it can know immediately what state is recorded.

Claims (1)

A reproducing head configured to be movable radially with respect to a recording medium having a plurality of memory tracks in a concentric manner, discriminating means for receiving the output of the reproducing head to determine the recording state of each of the recording tracks, and the output of the discriminating means And a memory having an address corresponding to each recording track, wherein the recording status of each recording track is stored in the memory so that the recording status of all recording tracks can be displayed at once. A recording and reproducing apparatus using a medium.

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