JPH03269891A - Specific picture selection method of vtr and device - Google Patents

Abstract

PURPOSE: To shorten a screen selection time by selecting only the specific screen set beforehand and making it visible and audible in the case of reproducing a long time recorded video tape. CONSTITUTION: Firstly, when a screen selection viewing function switch 13 is turned ON in a playing state for setting start/end points in the viewing section via start/stop memory switches 14 and 15, a video tape is forwarded fast until a count value becomes the one for a stating point A-1 of a desired section A. When the count value becomes the one for the starting point A-1 in the section A, the section is played, and when the count value becomes the one for the end point A-2 in the section A, the video tape is forwarded fast and is played from a count value of a starting point B-1 in a different desired section B. Thus, it is possible to view a video tape effectively and save time.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to VCR (video cassette re)
VTR (video tape) such as
recorder) It is related to a specific screen selection function that allows you to select and view only a specific part that is distorted during playback.In particular, by selecting and viewing only a specific part during playback of a tape that has been recorded for a long time, you can eliminate unnecessary parts. The present invention relates to a method and apparatus for selecting a preset specific screen of a VTR suitable for shortening the viewing time.

[Conventional technology]

Conventionally, the screen was searched using the CUE key, RE V (Review) key, and PLAY (Play) key.

That is, conventionally, when a player wanted to find a screen he wanted to see, he performed a CUE or REV operation in the playing state to find the desired screen.

[Problem to be solved by the invention]

However, since the tape is being loaded onto the drum at this time, the speed is slow and the tape is subject to significant wear.

Also, stop and press F / F (Past For
ward) or Rew (Rewind), but it is difficult to find the exact position, and it is troublesome to have to operate the key repeatedly.

In other words, conventionally, when searching the screen during play, it takes a lot of time (when using CUE or REV), and when the play is stopped, RE W (Rewind) or F / F (
(Past Forward) If the user plays after an operation, the accuracy of finding the desired screen decreases, and furthermore, the user has to repeatedly operate keys such as PLAY STOP → F/FSREV, which is troublesome.

[Means to solve the problem]

The specific screen selection method of the present invention is applied to a VTR that has been recorded for a long time.
The present invention is characterized in that only a preset specific screen can be selected and viewed when reproducing a tape, thereby shortening the time required to view unnecessary screens.

Further, in the specific screen selection method according to claim 2, when the selective viewing function is "on" in the playing state, it is checked whether the start memory key is "on", and if the start memory key is not "on", the screen cannot be viewed. After the current count value when the start key of the section storage memory is input is stored at the start point of the section to be viewed during the next playback, the current count value when the stop key of the viewing section storage memory is input. is stored at the end point of the section to be viewed at the next playback, and the screen to be viewed is set in advance, and if the start memory key is "on", the count value is preset from the above and the start of the screen to be viewed is set in advance. If it is the start point, it performs fast forwarding, and if it is the start point, it displays the preset screen to be viewed, and then the count value is the same as the preset screen to be viewed. Checks if it is the end point, continues playing if it is not the end point, fast forwards in the stop state if it is the end point, and plays only the preset section by finding another desired section. The feature is that the desired section is played at a fast forward speed while the remaining sections are played back in a stopped state.

Furthermore, the specific screen selection device of the present invention according to claim 3 includes a microcomputer (
1), a power supply unit (2) that drives the microcomputer (1), a reference frequency oscillator unit (3) that determines the time and frequency of the debug exchanged by the microcomputer (1), and a power outage unit that is prepared for power outages. A compensation circuit (4), a fluorescent indicator (5) that displays all statuses, a reel pulse generator (6) that senses the running status of the tape, a general-purpose key matrix input unit (7), and a normal function and a screen selection switch (13) for selecting the screen selection function; and a start switch (14) for setting the starting point of the viewing screen section when the screen selection switch (13) is turned on.
The stop memory switch (1
5), the above microcomputer (1) and the motor control section (
A microcomputer (6') exchanges signals with the reference frequency oscillator (3'), a deck status determining unit (11), and a videotape status determining unit (12), and controls the unit to perform a certain function. 1'), a power supply unit (2') that drives the microcomputer (1'), and a capstan motor (7') for driving the tape advancement using the data received from the microcomputer (1'). It is composed of a motor control unit (6') that drives a drum motor (8) for detecting a magnetized video signal and an elevation motor (9) for ejecting and inserting a tape, and a control head (10). Features.

[For production]

Therefore, the present invention makes it possible to select only the necessary part of the content of a long-recorded tape and then play back only that section, making it possible to watch effectively and save time. No major changes in VCR condition.
(Deck change) Since the function can be selected as a selection switch, it can be easily used on existing VCH by changing the microcomputer program.

Furthermore, the present invention can be used not only in VCRs but also in all electronic products that use magnetic recording/playback tapes, and can be particularly easily used in the case of audio tapes.

〔Example〕

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

First, if we look at the configuration of the specific screen selection device of the present invention in FIG. ), a reference frequency oscillator (3) that determines the time and frequency of data exchanged with the microcomputer (1), a power outage compensation circuit (4) that protects against power outages, and a fluorescent indicator that can display all statuses. Department (
5), a reel pulse generator (6) that senses the running state of the tape, a general key matrix input section (7), and a screen selection switch (a switch for selecting the general normal function or screen selection viewing function) ( 13), a start memory switch (switch that sets the starting point of the viewing section when the screen selection switch is "on") (14), a stop memory switch (switch that sets the end point of the viewing section when the screen selection switch is "on") switch) (15)
At this time, the switches (13 to 15) are controlled by the output of the microcomputer (1) and exchange data with the microcomputer (1').

The microcomputer (1') also includes a reference frequency oscillator (3') that determines the time and frequency of data exchanged with the microcomputer (1), a power supply unit (2'), a deck status determination unit (11), and a power supply unit (2'). The microcomputer (1) exchanges data with a motor control section (6'), and the motor control section (6') is connected to a power supply section (2') and a cap that drives the tape advancement. A stun motor (7'), a drum motor (8) that detects the magnetized video signal of the tape, an elevation motor (9) that pulls out and inserts the tape, and a control head (10) are connected. It is.

The operating state of the above-mentioned constituent devices will be explained in detail with reference to the flowchart of FIG. 2 as follows.

As an example, let's take the section shown in Figure 3 as A.
,B will be explained. First, check whether it is in play mode and if it is in play mode, the screen selection viewing function is turned on.
Check that the screen selection viewing function (switch (1)
If 3) is "on", check if the start memory is "on" and make sure the start memory key is "on".
If it is "on", the count value is the section you want to see ("A"
Check if it is the start point (A-■) of the interval) and check the count value at the start point (A) of the interval (A).
If not A-■), then F/F (PastForwa
rd) After that, check whether the count value is the start point (A-■) of the section (A) you want to see, and if it is the start point (A-■), play and then check if the count value you want to see is the start point (A-■). Check if it is the end point (A-■) of the section (A) you want to see, and if it is not the end point (A-■) of the section (A) you want to see, play again and then play the section (A) you want to see. End point (A-■
), and if it is the end point (A-■), perform F/F in the stop state, and then check the start point (B-) of a different section (B) where the count value is
■), and if it is not the starting point (B -
-■), and if it is the starting point (B-■), after playing, the count value is the section you want to see (
The end point of the section (B) to check and see if it has reached the end point (B-■) of B) (B-■)
If not, after executing the play again, check whether the count value has reached the end point (B-■) of the section you want to see, and if it is the end point (B-■), execute F/F in the stopped state. After that, if there is another section you want to see, repeat the above operations until you see the specific section you want to see, and stop if there is no other section you want to see.

If the start memory key is not turned on, the memory (A: the section you want to view) checks if there is a start key input, and if there is a start key input, the current count value will be the section you want to view the next time you play. After storing the memory at the start point (A-■) of (A), check if there is a stop key input in the memory (A; section you want to view), and if there is a stop key input in the memory (A), save the current count value. It is stored at the end point (A-■) of the section (A) to be viewed during the next reproduction.

Then, only the section A to be viewed (A-■ to A-■) is stored, and when played again, only this section (A) is played back.

After that, check if there is a start key input in the memory (B: the section you want to view), and if there is a start key input, the current count value will be displayed at the start point (B) of the section you want to view at the next playback. After storing the current count value in the memory (B: the section you want to view), check if there is a stop key input, and if the stop key is input, the current count value will be stored in the section you want to view the next time (B ) is stored at the end point (B-■).

In this way, only the section rBJ you want to see (B-■
, B-■) is stored, and only this section (B) is played back at the next playback.

In addition to sections A and B, many sections can be set as necessary using the method described above.

When playing a tape with a specific section set as above, if the selection function switch is in the "on" state, the selected section (A, B) can be played, and the remaining sections are stopped and the F/F is turned off. Execute to find the desired section.

〔Effect of the invention〕

Therefore, the present invention makes it possible to select only the necessary part of the content of a long-recorded tape and then play back only that section, making it possible to watch effectively and save time. No major changes in the VTR condition (
Since the function can be selected as a selection switch, it can be easily used on existing VTRs by changing the microcomputer program.

Furthermore, the present invention can be used not only in VCRs but also in all electronic products that use magnetic recording/playback tapes, and can be particularly easily used in the case of audio tapes.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of a specific screen selection device according to the present invention, and FIG.
The figure is a flowchart of a specific screen selection operation according to the present invention, and FIG. 3 is an explanatory diagram showing an example of a specific screen section indicator according to the present invention. 1.1'...Microcomputer, 2,2'...Power supply section,
3.3'...Reference frequency oscillation unit, 4...Power outage compensation circuit, 5...Fluorescent display unit, 6...Reel burr generator, 6...Motor control unit, 7...General-purpose key Matrix input section, 7... Capstan motor, 8... Drum motor, 9... Elevator motor, 10... Control head, 11... Deck status judgment unit, 12... Videotape status judgment Department, 13・
... Screen selection switch, 14... Start memory switch, 15... Stop memory switch.

Claims (1)

[Claims] 1. To reduce the time required to view unnecessary screens by allowing only a preset specific screen to be selected and viewed during playback of a VTR tape recorded over a long period of time. A method for selecting a specific screen of a VTR. 2. When the selective viewing function is “on” in the play state,
Check whether the start memory key is "on" and if the start memory key is not "on", the current count value when the start key of the viewing section memory memory is input is the start point of the section to be viewed at the next playback. After that, the current count value when the stop key of the viewing section storage memory is input is stored at the end point of the section to be viewed at the next playback, and the screen to be viewed is preset, and the screen to be viewed is stored in advance in the start memory. If the key is "on", it is checked whether the count value is the preset start point of the screen to be viewed from the above, and if it is not the start point, fast forward is performed, and if it is the start point, the preset After displaying the screen you want to view, check whether the count value is the end point of the screen you want to view as set in advance above, and if it is not the end point, continue playing, and if it is the end point, stop. This feature is characterized in that only a preset section is played during playback by fast forwarding in the state and finding another desired section, and for the remaining sections, the desired section is found at the fast forwarding speed with the stopped state. 2. The method for selecting a specific screen of a VTR according to claim 1. 3. A microcomputer (1) that can store and read certain data, and a power supply unit (1) that drives the microcomputer (1).
2), a reference frequency oscillator (3) that determines the time and frequency of data exchanged with the microcomputer (1), a power outage compensation circuit (4) that protects against power outages, and fluorescent indicators that display all statuses. section (5), a reel pulse generator (6) that senses the running state of the tape, a general-purpose key matrix input section (7), a screen selection switch (13) that selects between the normal function and the screen selection function, and the above-mentioned A start memory switch (14) is used to set the start point of the viewing screen section when the screen selection switch (13) is turned on.
), a stop memory switch (15) that sets the end point of the viewing section when the screen selection switch is turned on, and exchanges signals with the microcomputer (1) and motor control section (6'). , reference frequency oscillator (3
a microcomputer (1') which is connected to the deck status determining section (11) and the videotape status determining section (12) and controls the microcomputer (1') to perform a certain function;
’), and a power supply unit (2’) that drives the microcomputer (1’).
) is used to drive the capstan motor (7') for driving the tape advancement, the drum motor (8) for detecting the magnetized video signal of the tape, and the elevation motor (9) for pulling out and inserting the tape. A selection screen selection device for a VTR, characterized in that it includes a motor control section (6') and a control head (10).