JP2000182294A - Information position searching device of video recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To speedily search desired image information by controlling a recording medium to run for reproduction when a control signal reaches a setting value of a time setting part, and making the recording medium speedily run up to the position of a desired information. SOLUTION: A viewer predicts that a desired image was at the tape position about 20 minutes ago in reproduction time, and sets a time setting part 9 to 20 minutes, and when the viewer operates a rewinding button on an operation part 8, the tape starts running speedily by a motor of a recording drive part 5. Control signals are taken out of a control signal recording/reproducing head 11, and a control part 6 counts the number of the control signals. When the control signals are counted corresponding to 20 minutes set by the time setting part 9, the rewinding operation is stopped by a control signal from the control part 6, and reproducing operation is started. If the viewer desires another 5 minute rewinding looking at the display, the viewer should operate the rewinding button by setting this 5 minutes to the time setting part 9, then, the tape is automatically shifted to the desired reproducing state again.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information position search device for a video recording / reproducing device. More specifically, in the video recording / reproducing apparatus, when a viewer tries to search for video information that has already been recorded, the desired video is located at approximately a minute in the reproducing time determined from the current tape position. Predict whether there is information, set the time, and press the fast forward or rewind button, the tape will rapidly run to the position corresponding to that time, then automatically enter the playback state and display the screen Is related to a device to be reproduced.

[0002]

2. Description of the Related Art Conventionally, in a video recording / reproducing apparatus, when a viewer tries to search for video information that has already been recorded, a desired image is determined based on the information on the currently reproduced image. Judge how many minutes before or after the tape position, press the rewind button or fast-forward button to rewind, stop, play the screen, and perform the rewind, stop, playback operation, etc. I was searching for the desired image repeatedly. There is a problem that repeating such an operation is troublesome and time-consuming.

Conventionally, in order to solve the above-mentioned problems of the magnetic recording and reproducing apparatus, for example, Japanese Utility Model Application Laid-Open No. 58-19334.
There is a technique as described in Japanese Patent Laid-Open Publication No. 5 (1993) -205. That is, the publication discloses a means for variably setting the time for rewinding or fast-forwarding the tape, and a means for variably setting the playback time of the tape. A technique is disclosed in which the tape rewinding or fast-forwarding and the tape reproduction are automatically and alternately repeated at such time.

[0004]

SUMMARY OF THE INVENTION According to the present invention, in a video recording / reproducing apparatus, when searching for desired image information, fast forward or rewind, stop, and reproduction operations are quickly performed without repeating each operation. To provide technology that can be searched.

[0005]

According to a first aspect of the present invention, there is provided an information position searching apparatus for a video recording / reproducing apparatus, comprising: a video signal and a control signal repeatedly generated at a predetermined time interval; A recording / reproducing head for recording and reproducing on a recording medium, a driving unit for moving the recording medium while sliding on the recording / reproducing head, and a time setting for setting a desired running time of the recording medium Unit, the control signal recorded on the recording medium is detected and supplied by the recording / reproducing head, and a counting unit that counts the number of the control signal, and fast-forward or rewind operation button operation In response, the drive unit starts the fast forward or rewind operation of the recording medium, and the time set by the time setting unit starting from the time when the operation button is operated. A control unit that counts the control signal up to a control signal corresponding to the control unit, and controls the drive unit to reproduce and run the recording medium when the control signal reaches the set value of the time setting unit. The recording medium is rapidly moved to the information position desired by the operator.

According to a second aspect of the present invention, there is provided an information position search apparatus for a video recording / reproducing apparatus, which comprises: a recording / reproducing head for recording and reproducing a video signal on a recording medium such as a tape; A driving unit that moves the recording medium while sliding on the top, a time setting unit that sets a desired traveling time of the recording medium, and a rotating body that is driven by the driving unit to travel and move the recording medium. A counter section for counting the number of revolutions, and the drive section starts the fast-forward or rewind operation of the recording medium in response to the operation of the fast-forward or rewind operation button, and starts from the time when the operation button is operated. Rotating the rotating body to a rotation speed of the rotating body corresponding to the time set by the time setting unit, and when the rotating speed reaches a rotation value corresponding to the set value of the time setting unit, the drive unit causes the recording medium to rotate. And a control unit that controls so as to reproduce the travel, to rapidly travel recording medium to the information desired position of the operator.

Further, in the information position search device of the video recording / reproducing device according to the third aspect, the time setting unit may include 1, 5, 10, 30, 60 minutes or the like in the first or second aspect. Multiple hours can be set. According to a fourth aspect of the present invention, in the information position search apparatus for a video recording / reproducing apparatus according to the first or second aspect, when the set time of the time setting unit is 30 minutes or more, several minutes before the set time. When the fast forward or rewind operation is completed, the reproduction operation starts.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a main circuit block diagram of an information position search device of a video recording / reproducing device according to the present invention. In FIG. 1, a high-frequency television signal received by an antenna 1 is converted into a video baseband signal by a television tuner 2, amplified by a recording / reproducing amplifier 3 and sent to a recording / reproducing rotary head 4, where a driving motor A video magnetic tape (not shown) travels obliquely on the upper surface of the recording / reproducing rotary head 4 for recording / reproducing a video signal, and a television signal is recorded on the video magnetic tape. The control unit (CPU) 6 is composed of a microcomputer. Various control programs are stored in the ROM 7, and the control unit 6 operates according to the program signals from the ROM 7 to perform various controls. In addition, the control unit 6 performs necessary control of the video recording / reproducing device according to an operation signal input by an operation button of the operation unit 8.

That is, a normal operation such as recording, reproduction, rewinding, and fast-forwarding of the video recording / reproducing apparatus is performed by an input operation signal from the operation unit 8. The desired running time of the tape is set in the time setting section 9. The counter section 10 counts the number of rotations of the rotating body driven by the driving section 5 to move the tape. Then, from the count value, it is possible to monitor the running position from the beginning of the tape, the elapsed time at the reproduction speed at the time when the tape is inserted, and the like.

In the VHS system, a video signal is recorded on the tape at a predetermined angle to the running direction of the tape and is recorded on the tape at a predetermined angle. Is recorded on the video signal track that occupies the. An audio track is provided in a narrow portion at the upper end of the video signal track, and an audio signal is recorded here. A control (CTL) track is provided in a narrow portion at the lower end of the video signal track, and a (CTL) control (control) signal is recorded therein.

In the video recording VHS system, "bis"
That is, there is a standard called VISS (VHS Index Search System) for automatically detecting and reproducing an arbitrary scene.
The control signal called S signal is usually a pulse wave signal for notifying the start or end of recording, and is used as a search signal. In the video recording VHS system, “bus”,
That is, there is a standard called VASS (VHS Address Search System) for automatically detecting and reproducing an arbitrary screen.
It is possible to search for a specific screen to be viewed by the SS signal and repeatedly reproduce the screen. A search signal such as a VISS signal or a VASS signal can be used as a reference for a recording start signal or an end signal of a video magnetic tape, but in the present invention,
A control signal generation circuit (not shown) generates a pulse signal that is repeatedly generated at predetermined time intervals, and generates the pulse signal (C
TL) Used as a control signal. Further, the counting unit 10 for counting the number of drive rotations related to the tape drive motor can be used, or they can be used together.

First, an embodiment in which a pulse signal repeatedly generated at predetermined time intervals is recorded on a tape by a control signal recording / reproducing head 11 as a (CTL) control (control) signal will be described. Now, when the viewer predicts that the desired image will be at the tape position about 20 minutes before the reproduction time, sets 20 minutes in the time setting section 9 and operates the rewind button in the operation section 8, The tape runs rapidly by the motor of the recording drive unit 5. Then, a control signal is extracted from the control signal recording / reproducing head 11, amplified by the recording / reproducing head amplifier 3, and supplied to the control unit 6. In the control section 6, the number of control signals is counted by a counting section (not shown) provided therein. When the control signal corresponding to the set time 20 minutes of the set time section 9 is counted, the rewind operation is stopped by the control signal from the control section 6, and the reproduction operation is started. The viewer looks at the screen, and if he wants to rewind for 5 minutes, for example, sets 5 minutes in the time setting unit 9 and
Operate the rewind button. When the control signal corresponding to the time of 5 minutes is counted, the state automatically returns to the reproducing state. In this way, a desired image of the viewer can be found.

Next, an embodiment in which a simple tape counter is used without using the control signal as described above will be described. When using a counter unit 10 that is rotated by a motor of a recording medium (tape) driving unit 5 and counts the number of rotations of a rotating body (not shown) that runs the tape, the time set by the time setting unit 9 is 20 minutes. Is counted, the rewinding operation is stopped by the control signal from the control unit 6, and the reproducing operation is started. The viewer can look at the screen and find the desired image of the viewer in the same manner as described above.

The time setting unit 9 includes, for example, 1, 5,
A fixed time may be prepared in advance, for example, 10, 30, or 60 minutes, so that the viewer can select an appropriate time from these. Furthermore, when a time of 30 minutes or 60 minutes is selected in the time setting unit 9,
If the reproduction is stopped after a lapse of one to two minutes before the predetermined time, the user can easily use a counter such as a tape counter which is likely to cause an error in a long time setting.

[0015]

As described above, the information position search apparatus of the video recording / reproducing apparatus according to the present invention, when searching for the desired image information, judges from the currently reproduced image information and determines the desired image information. Determines the number of minutes before or after the current tape position, sets the time in the time setting section, and operates the rewind or fast-forward button. Since the playback state is established, the operation of pressing the stop button and then the playback button is unnecessary. Furthermore, if the control signal is recorded in advance on the recording medium, the time can be set very accurately by the control signal. When a tape counter is used, the cost can be extremely low and the desired purpose can be achieved with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a block circuit diagram showing an information position search device of a video recording / reproducing device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Antenna 2 TV tuner 3 Recording / playback amplifier 4 Video signal recording / playback head 5 Recording medium drive unit 6 Control unit 7 ROM 8 Operation unit 9 Time setting unit 10 Counter unit 11 Control signal recording / playback head

Claims (4)

[Claims] A recording / reproducing head for recording and reproducing a video signal and a control signal repeatedly generated at predetermined time intervals on a recording medium such as a tape;
A drive unit for moving the recording medium while sliding on a reproduction head unit, a time setting unit for setting a desired traveling time of the recording medium, and the control signal recorded on the recording medium is used for recording / reproducing. A counter for detecting the number of control signals detected and supplied by the head, and starting the fast forward or rewind operation of the recording medium by the drive unit in response to operation of a fast forward or rewind operation button. The control signal is counted up to the control signal corresponding to the time set by the time setting unit starting from the time when the operation button is operated, and when the control signal reaches the set value of the time setting unit, the driving unit And a control unit for controlling the recording medium to reproduce and run the recording medium, whereby the recording medium is rapidly run to an information position desired by an operator. Location of information position search apparatus. 2. A recording / reproducing head for recording and reproducing a video signal on a recording medium such as a tape, a driving unit for moving the recording medium while sliding on the recording / reproducing head, A time setting unit for setting a desired traveling time of the recording medium, a counter unit for counting the number of rotations of a rotating body driven by the driving unit for traveling the recording medium, and a fast-forward or rewind operation button In response to the operation, the drive unit starts the fast forward or rewind operation of the recording medium, and the rotation of the rotating body corresponding to the time set by the time setting unit starting from the time when the operation button is operated. And a control unit for controlling the driving unit to reproduce and run the recording medium when the number of rotations reaches the number corresponding to the set value of the time setting unit. Information position Information location search device of a video recording and reproducing apparatus to rapidly travel recording medium to. 3. The time setting section includes 1, 5, 10, 30,
3. The information position search device according to claim 1, wherein a plurality of times such as 60 minutes can be set. 4. The reproduction operation according to claim 1, wherein when the time set by said time setting unit is 30 minutes or more, the fast-forward or rewind operation is completed several minutes before the set time and the reproduction operation is started. Information position search device of the video recording / reproducing device.