JP2001076396A - Information recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable places wanted to be preferentially reproduced to be searched quickly by setting a program searching signal at a desired time at the time of reserving the recording of information to a recording medium. SOLUTION: This device is provided with a program searching information recording means 11 recording program searching information on the recording medium and is constituted so as to automatically record the program searching information on the recording medium at the time of recording information on the medium based on a recording starting instruction or reservation information. At this time, the device is provided with selection means 1f, 1g making the program searching information to be recorded on the medium at either of an arbitrary time or a time signal at the time of reserving the recording of information and a control means 3 performing a control making the program searching information to be recorded on the medium by controlling the means 11 in accordance with the selection content of the means 1f, 1g at the time of recording the information on the medium.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording / reproducing apparatus for recording cue information for retrieval together with information on a recording medium, and more particularly, to a method for rapidly transmitting a video / audio signal recorded on a magnetic tape by a video tape recorder. The present invention relates to an information recording / reproducing apparatus which can be reproduced in a computer.

[0002]

2. Description of the Related Art A magnetic recording / reproducing apparatus having a VISS function for recording a cue signal on a video tape has become widespread in order to facilitate retrieval during reproduction of video / audio signals recorded on a video tape. As one example, there has been proposed a magnetic recording / reproducing apparatus for continuously confirming recorded contents at a very high speed (see Japanese Patent Application Laid-Open No. 64-14759). FIG. 2 is a block diagram showing an electrical configuration of a conventional magnetic recording / reproducing apparatus. This magnetic recording / reproducing device
VTR of TV-integrated VTR that integrates a television receiver (TV) and a video tape recorder (VTR)
It has been applied to.

In FIG. 2, reference numeral 1 denotes a selection switch group including switches such as a one-touch switch 1a, a timer REC switch 1b, a cue signal writing command switch 1c, a cue selection switch 1d, and a cue signal recording time interval setting switch 1e. It is. Reference numeral 2 denotes a remote control transmitter including a cue signal writing switch 2a, a cue signal search switch 2b, and the like. 3 performs signal processing in response to commands from the selection switch group 1 and the remote control transmitter 2,
This is a timer microcomputer that generates a control signal to the control switches 8 and 9 to convert the duty at the set time interval of the cue signal. Reference numeral 4 denotes a mechanical sequence microcomputer that executes operations such as recording and playback in response to a command from the timer microcomputer 3.

[0005] Reference numeral 5 denotes a timer display tube for displaying that a cue signal is being written and a display for confirming a cue signal calling address. Reference numeral 6 denotes a reference signal for creating a recording control signal. A chroma circuit 7 that outputs a 58 MHz subcarrier signal is a control circuit that receives the subcarrier signal and converts it into a 30 Hz recording control signal. A switch 8 is turned on during normal recording, and a switch 9 is turned on when writing a cue signal. Reference numeral 10 denotes a duty conversion device for converting the duty of a control signal to write a cue signal, and reference numeral 11 denotes a control head for writing a control signal to a video tape as a recording medium.

FIG. 3 is an explanatory diagram showing a tape positional relationship of a hard loading mechanism for searching for a cue signal. In FIG. 1, reference numeral 12 denotes a VTR cylinder, 13 denotes a video tape, and 14 denotes a control head for writing and retrieving control signals. FIG. 4 is a waveform diagram of the recording control signal. In the figure, 15 is a control signal at the time of normal recording, and 16 is a control signal at the time of cueing signal recording.

FIG. 5 is a system block diagram for performing cueing. In the figure, reference numeral 17 denotes a gain of about 100
A zero-times amplifier 18 is a Schmidt waveform shaping circuit for shaping the control signal from the amplifier 17 into a square wave.
Numeral 19 is a duty for detecting the normally recorded control signal and the control signal recorded with the duty changed for cueing at the binary level of "H" and "L" at the time of FF / REW. It is a T conversion detecting device. 20
Are “H” and “L” from the duty conversion detecting device 19.
This is a timer microcomputer that receives the signal of the above and issues a cueing processing command. Reference numeral 21 denotes a timer display tube for displaying a cueing address and for confirming that cueing is being performed. 22
Is a mechanical sequence microcomputer that receives an instruction from the timer microcomputer 20 and performs an actual operation. Reference numeral 23 denotes a search switch for giving a search command described later to the timer microcomputer 20.

Next, the operation of the magnetic recording / reproducing apparatus will be described. First, when the user presses a recording start switch such as a REC and a one-touch timer switch or a reservation recording selection switch using the selection switch group 1 and the remote control transmitter 2 in FIG. 2, the timer microcomputer 3 receives a recording start command. Then, a signal is sent to the mechanical sequence microcomputer 4, and the apparatus changes from the stopped state to the recording state. Here, after the recording mode is set, a switch control signal is automatically generated by the timer microcomputer 3 for about 2 seconds, and the control signal turns off the switch 8 and turns on the switch 9.
Becomes As a result, the subcarrier 3.5 of the chroma circuit 6
The square wave signal 15 with a duty of 60% created by the control circuit 7 with reference to 8 MHz is converted into a square wave signal 16 with a duty of 27% via the duty conversion device 10.
(See FIG. 4), input to the control head 11, and write the control signal to the video tape 13. After the control signal is written for 2 seconds at a duty of 27%, the switch 8 is turned on and the switch 9 is turned off, and the control signal is written on the video tape 13 at a duty of 60%.

Next, by pressing the selection switch group 1 or the cue signal writing switches 1c and 2a of the remote control transmitter 2 once during recording at a duty of 60%,
As described above, the control signal 16 having a duty of 27% is written on the video tape 13 for about 2 seconds. Also,
Similarly, when the recording is paused during the recording and the recording is performed again, the control signal 1 having the duty of 27% for 2 seconds is similarly used.
6 will be written on the video tape 13.

Next, an operation of calling a cue signal will be described. In order to call out the cueing signal, as shown in FIG. 3, a hard loading mechanism that allows the video tape 13 to contact the control head 14 in a stopped state is used. At the time of calling, a method is used in which a control signal recorded by performing duty conversion at the time of recording is detected by FF / REW operation at a speed of about 40 times the speed at the time of standard mode reproduction, and the reproduction mode is set after stopping.

That is, the selection switch group 1 and the remote control 1
By pressing the forward / backward cue signal search switch provided in the transmitter 2, the F is kept in the stopped state.
The control signal is searched by F and REW. In addition, the reproduction state is unloaded to a stop state, and the control signal is searched by FF and REW. Video tape 1 with control head 14 in FIG.
3 is detected, and the control signal
The signal is amplified by an amplifier 17 having a gain of 0 times. The amplified signal is output as a waveform shown in FIG. FIG. 6A shows an amplified control signal when a normally recorded control signal is reproduced.
(C) is an amplified control signal when the control signal written for cueing is reproduced.

Next, the waveform shaping circuit 18 shown in FIG.
As shown in FIG. 6B, the control signal of FIG.
Are formed into square waves and output as shown in FIG. From the duty conversion detecting device 19, when the duty of the output square wave of the waveform shaping circuit 18 is 60%, the "H" level, and the duty is 27
In the case of%, an "L" level signal is output. The timer microcomputer 20 receives the "H" and "L" signals, and determines that there is a cue signal at "L". The search switch 23 gives the timer microcomputer 20 an instruction as to how many “L” levels to search in each of the forward direction and the backward direction. In response, the timer microcomputer 2
0 is "L" output from the duty conversion detecting device 19.
The number of levels is detected, the FF / REW operation is stopped, and a command to shift to the reproduction mode is sent to the mechanical sequence microcomputer 22. As a result, the mechanical sequence microcomputer 22
Perform a playback operation. The cue search state can be confirmed on the timer display tube 21.

By the way, when the cue signal is written as described above, in order to reproduce the video tape 13 and confirm the recorded contents, the contents must be confirmed by speed search or FF / REW in which the image cannot be viewed. Must take time. For this reason, the cueing signal is set at an arbitrary time interval. Next, a case where the cue signal is set at an arbitrary time interval will be described.
First, when the user presses the cueing selection switch 1d of the selection switch group 1 shown in FIG. 2, the timer microcomputer 3 receives a command and sets the timer display tube 5 to the setting mode.
The cue signal recording time interval is set by the cue signal recording time interval setting switch 1e of the selection switch group 1. The setting of the time interval is selected in units of minutes and hours.

Then, at a set time interval, a switch control signal for the recording mode is generated from the timer microcomputer 3, and the switch 8 is turned off and the switch 9 is turned on. As a result, the recording control signal having the duty of 60% is converted to the duty of 27%, and the control signal is written to the video tape 13 through the control head 11. The search means for the signal written in this way is the same as that shown in FIGS. 3 to 6, but in this case, the cueing signal recording time interval setting switch 1e is used.
Since the cue signal can be arbitrarily written in units of minutes and hours, a quick search for cue can be performed when the recorded video tape 13 is reproduced. Therefore, the contents recorded continuously for a long time by reservation recording, one-touch recording, or the like can be confirmed at an ultra-high speed of FF / REW, and the wear of the tape or the like can be searched with little wear.

[0014]

By the way, in the above-mentioned conventional magnetic recording / reproducing apparatus, although the cue signal is set at an arbitrary time interval, the recorded content for a long time can be quickly confirmed, but once. This is not a configuration in which the cue signal is written in the middle of the recording based on the reservation. For this reason, after continuously recording on the video tape 13 for a long time, the user quickly searches for the most important recorded part or the part that he / she wants to see repeatedly, and preferentially reproduces and listens. There was a drawback that it was not possible to freely select what to do. Further, when two different programs are to be reserved and recorded on the same channel, it is necessary to perform a reservation operation for a time period twice, which is extremely troublesome.

[0015] The present invention has been made in view of the above-described problems, and it is desirable to set a cue signal to a desired time when a recording of information is reserved on a recording medium, thereby preferentially reproducing the information. It is an object of the present invention to provide an information recording / reproducing apparatus capable of quickly searching a location or the like.

[0016]

According to a first aspect of the present invention, there is provided a cue information recording means for recording cue information on a recording medium. In the information recording / reproducing apparatus for automatically recording the cue information when recording information on the recording medium based on reservation information, the cue information may be recorded at any time and / or time signal when the information recording is reserved. And a control means for controlling the cueing information recording means according to the selection contents of the selection means and recording the cueing information when recording information on the recording medium. It is characterized by. The invention according to claim 2 is characterized in that the cue information is recorded in the middle of the information recording based on one reservation at the arbitrary time. Further, the invention according to claim 3 is characterized in that the time signal is a zero-time point of time of hour, minute and second. Further, the invention according to claim 4 is characterized in that the recording medium is a magnetic tape on which signals are recorded by a magnetic recording / reproducing device and from which recorded signals are reproduced. The invention according to claim 5 is characterized in that the recording medium is an optical disk on which a signal is recorded by a disk-type recording / reproducing device and a recorded signal is reproduced.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an electrical configuration of the information recording / reproducing apparatus according to the present invention. This information recording / reproducing apparatus has the same basic configuration as the conventional example shown in FIG. 2, and the same parts are denoted by the same reference numerals, and different parts will be described in detail. That is, the television-integrated VTR to which the information recording / reproducing apparatus is applied determines whether the selection switch group 1 shown in FIG. 1 records the cue signal on the video tape 13 at an arbitrary time or a time signal time. Key 1f and a NO key 1g are added. Further, the timer microcomputer 3 includes a memory 3a for storing character data of characters to be displayed on the screen of the TV. In this example, "Do you want to record the cue signal?"
Character data such as "What time and what time do you want to record?" And "Please enter the time in the blank."

Further, a display controller 3b is connected to the timer microcomputer 3, and the various characters are sequentially displayed on the screen of the CRT according to the display control of the timer microcomputer 3. That is, the timer microcomputer 3 displays the reservation menu on the screen at the start of the recording reservation, in addition to the above-described signal processing, but prompts the input of the recording time of the cue signal following the channel and the recording start / end time. It also controls. At this time, the various characters are displayed on the screen so that the user can sequentially determine whether the cue signal is recorded at an arbitrary time or a time signal time. In particular, when recording at an arbitrary time, the time and the minute are determined.

Next, the operation of the information recording / reproducing apparatus will be described with reference to the flowchart of FIG. First, when the user turns on the power, the timer microcomputer 3
Determines whether or not recording is to be started (step S1).
1). If no recording is scheduled, the user
When a predetermined key of the remote control transmitter 2 is pressed, the timer microcomputer 3 receives a reservation start command and displays a recording reservation menu on the TV screen. This display menu is
The order is channel, date, recording start time, recording end time, and cue signal recording time. The cue signal recording time is displayed so that writing can be performed a plurality of times. If a user wants to record a different one-hour program on tape for two consecutive hours on one channel,
For example, if the recording start time is “9:00 pm” and the recording end time is “11:00 pm”, the timer microcomputer 3 stores the time and channel data in the work memory and reserves a program ( Step S12).

Next, the timer microcomputer 3 controls the display controller 3b to display on the TV screen the text "Do you want to record a cue signal?" At this time, when the user operates the NO key 1g of the selection switch group 1, the timer microcomputer 3 determines that the reservation of the program has ended, and ends a series of operations (step S13). On the other hand, when the user operates the YES key 1f of the selection switch group 1, the timer microcomputer 3
Is determined to be a write setting of a cue signal (step S1).
4) Display the text "Record at hourly time" on the screen. Here, when the user operates the NO key 1g, the timer microcomputer 3 determines that an arbitrary time is designated for the cue signal (step S15), and displays "What time and what time do you want to record?" Please enter. " When the user inputs, for example, “10:00” in the middle of two hours according to this screen, the timer microcomputer 3 stores the time data in the work memory and ends the reservation of the program.

Thereafter, the timer microcomputer 3 receives the time data from the built-in timer, and sends a signal to the mechanical sequence microcomputer 4 when the recording start time stored in the work memory has come, so that the apparatus is switched from the stopped state to the recording state. Move to The mechanical sequence microcomputer 4 operates the recording system to record the video / audio signal of the reserved program on the video tape 13. When the recording mode is set, the timer microcomputer 3 automatically generates a switch control signal,
The switches 8 and 9 are ON / OFF controlled to write a control signal 16 having a duty of 27% to the video tape 13 for about 2 seconds as described above. Thereafter, the control signal 15 having a duty of 60% is written.

When recording is started in this way, the timer microcomputer 3 checks the contents stored in the work memory,
Switches 8 and 9 are turned on at "10:00"
OFF control is performed, and the control signal 16 having a duty of 27% is written on the video tape 13 for about 2 seconds. Then, when the recording end time is "11:00 pm", the timer microcomputer 3 writes the control signal 16 having a duty of 27% on the video tape 13 for about 2 seconds, and then ends the 2-hour recording operation. . After the program is recorded in this way, when the user performs a search operation with the remote control transmitter 2, the video tape 13 is rewound at an extremely high speed, and stops at "10:00". For this reason, the user may select “10 PM
It is easy to determine whether the program before “0:00” or the program after “0:00” is reproduced, and for example, the program after “10:00 pm” can be immediately reproduced and viewed.

By the way, in this recording reservation, the case where the cue signal is recorded at an arbitrary time has been described.
It may be recorded at the time signal time. When the user wants to make a recording reservation for a late-night program, for example, the recording start time is set to “1:00 am
5 minutes "and the recording end time is" 3:35 am "
The timer microcomputer 3 reserves the time and channel data. Then, when the user operates the YES key 1f of the selection switch group 1 when the character "Record in time signal time" is displayed on the TV screen, the timer microcomputer 3 sets the cue signal writing based on the time signal time. The data of each time signal time during the recording reservation period is stored in the work memory. In this case, "2:00 am
"Minute" and "3:00 am" are stored as the cue signal recording time.

After the reservation is completed, the timer microcomputer 3
Receives the time data from the built-in timer, and when the time signal time stored in the work memory comes,
A control signal 16 having a duty of 27% per second is written on the video tape 13. Therefore, when the user performs a search operation with the remote control transmitter 2 after the program is recorded, the video tape 13 is rewound at a very high speed,
It stops when "2:00 am" comes. If the user performs a further search operation, it stops even at "3:00 am". For this reason, when the user has recorded the same program, the user can quickly reproduce a portion desired to be viewed preferentially. When two different programs are recorded, the contents of each program can be easily determined based on 2:00 or 3:00 am, and can be immediately reproduced and viewed.

As described above, when two different programs are reserved for recording, it is not necessary to perform the reservation operation twice as in the prior art, and the operation of inputting the cue signal only once is sufficient, so that the handling is simplified. . Further, by recording the cue signal at an arbitrary time or a time signal time, it is possible to quickly search for a portion to be reproduced preferentially. In the above embodiment, the case where the present invention is applied to a VTR of a television-integrated VTR has been described. It is.

[0026]

As described above, according to the first aspect of the present invention, when information is recorded on a recording medium, the cue information is recorded at any time and / or time signal. When information recorded for a long time is reproduced, there is an effect that a portion to be reproduced preferentially can be quickly searched.
According to the second aspect of the present invention, the cue information is recorded in the middle of the information recording based on one reservation at an arbitrary time. It is not necessary to perform the reservation operation twice as in the above, and the operation of inputting the cue signal only once is sufficient, so that the handling is simplified. According to the third aspect of the present invention, since the time signal is the time of each of zero, minute, and second, the cueing information can be automatically recorded, and the information is reproduced during the recording period. There is an advantage that a quick search can be performed based on each time signal point. According to a fourth aspect of the present invention, in the recording medium, a signal is recorded on a recording medium by a magnetic recording / reproducing device.
Because it is a magnetic tape on which recorded signals are reproduced,
There is an advantage that the search for the broadcast program recorded in the video precoder is easy and quick. The invention according to claim 5 is an optical disk on which a signal is recorded by a disk-type recording / reproducing device and a recording signal is reproduced, so that a video / video recorded on a DVD player or the like is recorded. There is an advantage that the search for the audio signal is easier and faster.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an electrical configuration of a magnetic recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an electrical configuration of a magnetic recording / reproducing apparatus according to a conventional example.

FIG. 3 is an explanatory diagram showing a tape positional relationship of a hard loading mechanism for searching for a cue signal.

FIG. 4 is a waveform diagram of a recording control signal.

FIG. 5 is a system block diagram for performing cueing.

FIG. 6 is a waveform diagram of a control signal when searching for a cue signal.

FIG. 7 is a flowchart illustrating a recording operation of a cue signal.

[Description of Signs] 1f selection means 1g selection means 3 control means 11 information recording means 13 recording medium

Claims (5)

[Claims] 1. A cue information recording means for recording cue information on a recording medium, wherein the cue information is automatically recorded when information is recorded on the recording medium based on a recording start command or reservation information. In the recording / reproducing apparatus, a selection unit for recording the cue information at any time and / or a time signal at the time of reservation of the information recording, and at the time of recording information on the recording medium, Control means for controlling the cueing information recording means and recording the cueing information. 2. The information recording / reproducing apparatus according to claim 1, wherein the cue information is recorded during the information recording based on a single reservation at the arbitrary time. 3. The information recording / reproducing apparatus according to claim 1, wherein the time signal is a time count of each of zero, minute, and second. 4. The recording medium according to claim 1, wherein a signal is recorded by a magnetic recording / reproducing apparatus, and the recording medium is a magnetic tape on which a recorded signal is reproduced.
An information recording / reproducing apparatus according to any one of the above. 5. The recording medium according to claim 1, wherein the recording medium is an optical disk on which a signal is recorded by a disk-type recording / reproducing apparatus and a recording signal is reproduced. Information recording and playback device.