JPS63185175A - Picture reproducing device - Google Patents

Abstract

PURPOSE:To easily use the device by a user by providing a speed change control means executing a prescribed variable speed processing according to the operation of a variable input means changing the reproducing speed of a speed change reproduction and the stroboscope interval of a stroboscope picture display. CONSTITUTION:The titled device is provided with the variable input means 2A, 2B changing the reproducing speed of the speed change reproduction and the stroboscope interval of the stroboscope picture display, and the speed change control means 3 discriminating an operation state when the variable input means 2A, 2B are operated and executing the prescribed variable speed processing SP1 according to the operation state. The speed change control means 3 executes the prescribed variable speed processing according to the operation state when the variable input means 2A, 2B are operated, thereby, the stroboscope interval of the stroboscope picture display or the reproducing speed of the speed change reproduction can be varied if required by the use of a pair of variable input means 2A, 2B.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to an image reproducing device, and is suitable for application to, for example, a video tape recorder (VTR) capable of displaying strobe images using an image memory. be.

B. Summary of the Invention The present invention provides an image reproducing device configured to perform variable speed playback and strobe image display, in which a predetermined variable speed is set according to the operation of a variable input means that changes the playback speed of variable speed playback and the strobe interval of strobe image display. By providing a speed change control means for performing processing, an image reproducing device that is easy for users to use is obtained.

C. Prior Art Conventionally, in this type of video tape recorder (VTR), not only normal playback in which the videotape is run at the same speed as at the time of recording, but also n times the speed at which the videotape was recorded (for example, Nym 9.3.2 .115.1/10.1/20
etc.) to perform variable-speed playback such as so-called double-speed playback or slow-motion playback.

In addition to this, in a VTR having an image memory, video signals such as television broadcasting and videotape playback output are written to the image memory for each field (or frame), and the images are recorded at predetermined time intervals. Intermittent image display (hereinafter referred to as strobe image display) is performed at predetermined time intervals (hereinafter referred to as strobe interval) by reading out the memory and sending it to an image display device such as a television monitor. Those made in this way are used.

In such a VTR, the user can perform variable speed playback at a predetermined playback speed by pressing the normal playback key on the operation panel or by pressing the variable speed playback key during normal playback of a videotape, or by pressing the strobe key. By doing so, strobe reproduction can be performed at predetermined strobe intervals.

Furthermore, in the variable speed playback state, the user can change the playback speed by operating the variable speed playback key consisting of a "+" key and a "-" key for variable speed playback, for example, 2x, 3x, 9x, etc. Double speed playback, 115x, 1/10x, 1/2
A desired playback speed can be set by selectively specifying slow motion playback such as 0 times.

Here, the strobe image display can be used not only during normal playback of a videotape, but also during fast-forward playback and/or rewind playback, and can also be used during reception of television broadcasts. In addition, in the strobe image display state, the user can select the strobe interval according to the user's preference, for example, by operating the variable key consisting of the "+" and "-" keys for varying the strobe interval. is being done.

D Problems to be Solved by the Invention However, in a VTR with such a configuration, when a variable speed reproduction key and a variable strobe interval variable key are arranged side by side on the operation panel, the occupation panel becomes occupied. Not only does the area double, but the presence of two types of input keys with similar functions creates a risk that the user may make an erroneous operation, resulting in an unsatisfactory usability for the user.

The present invention has been made in consideration of the above points, and is based on the conventional V
The aim is to solve the problems of TRs all at once and propose a VTR that is easy for users to use.

E Means for Solving Problem The variable input means 2A, 2B that change the playback speed of playback and the strobe interval of strobe image display, and the operating state when the variable input means 2A, 2B are operated are determined, and a predetermined possible value is determined according to the operation 4fLi. A shift control means 3 for performing shift processing SPI is provided.

By performing a predetermined variable speed process in accordance with the operating state when the variable input means 2A, 2B are operated in the F action speed change control means 3, it is possible to use one set of variable input means 2A, 2B. Therefore, the strobe interval of strobe image display or the playback speed of variable speed playback can be varied as necessary.

G example An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIG. 1, ■ indicates a VTR as a whole, which is composed of a microcomputer including a CPU, a memo 11, etc., and receives an input signal S1 inputted through the input panel 2 by the user's operation and the operating state of the VTR 1 at that time. The mode control circuit 3 analyzes it, and depending on the analysis result, for example, the LE
The operating state is displayed on a display circuit 4 made up of a D, etc., and control data SD corresponding to the operating state is sent to the mechanical control circuit 5.

The mechanical control circuit 5 is composed of a microcomputer, and according to the contents of the control data SD, ■ a video circuit 6 that controls the entire TRI, a servo circuit 7 that controls variable speed playback, and a digital memory circuit that controls strobe image display. 8 etc., predetermined control signals S3, S4, S as necessary.
5, the VTR 1 performs the operation selected by the user.

Here, as shown in FIG. 2, the input panel 2 includes, for example, a "10" key 2A and a "-" key 2B, which are capable of varying the strobe interval for displaying strobe images and the playback speed for variable speed playback, and the strobe images. A strobe key 2C, a speed change key 2D, and a playback key 2E for selecting display, variable speed playback, and normal playback, and a fast forward key 2G and a rewind key 2F for specifying fast forwarding and rewinding or fast forwarding playback and rewinding playback of the video tape are provided. has been done.

As a result, the user can press the strobe key 2C, the speed change key 2D
, playback key 2E, fast forward key 2G, and rewind key 2F can be selectively operated to designate the VTRI to a desired operating state. Furthermore, in addition to this, the strobe interval can be varied when the operating state is displaying strobe images, and the playback speed can be varied when variable speed playback is in progress, using the "+" key 2A and the "-" key 2B.

Here, the CPU of the mode control circuit 3 selects one of the input keys 2A, 2B, 2C, 2D, 2E, and 2F on the input panel 2.
Or when 2G is input, the mode control processing program shown in FIG. 3 is executed.

That is, the CPU enters from step SPI and waits for any key input at step SP2.

If any key is input at this time, the CPU moves to step SP3 and executes the status setting processing program S shown in FIG.
Execute P3.

That is, the CPU enters step 5P3A of the state setting processing program SP3, determines whether the key input in step 5P3B is the strobe key 2C, and if a positive result is obtained here (that is, the strobe key 2C is pressed). ), the CPU moves to step 5P3G and determines whether the current operating state stored in the memory is a gear shifting state. If the CPU obtains a negative result here (that is, this indicates that the current operating state is a state other than the gear shifting state, and therefore it is possible to accept the strobe key 2C), then in the following step 5P3D, the memory is Update the current operating state to the strobe state and proceed to step 5.
At P3E, the state setting processing program SP3 is ended.

Further, when the CPU obtains a positive result in step 5P3C (that is, the current operating state is a gear shift state and the strobe key 2C cannot be accepted), the CPU executes the corresponding state setting processing program SP in step 5P3H.
Finish step 3.

Further, when the CPU obtains a negative result in step 5P3B (that is, this indicates that the pressed key is not the strobe key 2C), the CPU moves to step 5P3F and determines whether the input key is the speed change key 2D. . If a negative result is obtained here, the CPU moves to step 5P3E and ends the state setting processing program SP3.

Also, if a positive result is obtained here, the CPU continues with step 5P.
In 3G, it is determined whether the current operating state stored in the memory is a normal playback state, that is, a state in which the speed change key 2D is received, and if a negative result is obtained, step 5P3
The process moves to E and ends the state setting processing program SP3.

Also, if a positive result is obtained here, the CPU continues with step 5P.
In 3H, it is determined whether the current operating state is a strobe state or not, and if a positive result is obtained (that is, when it is a strobe state), the process moves to step 5P3I to cancel the strobe state and obtain a negative result. and continue with step 5
Step P3J updates the current state of the memory to the variable speed playback state, and thus ends the state setting processing program SP3 in step 5P3E.

When the CPU ends the state setting processing program SP3 in step 5P3E, the CPU returns to step SP4 (FIG. 3) of the main routine and executes the "+" key and "-" key processing program shown in FIG.

The CPU presses the "+" key and "-" from step 5P4A.
Entering the key processing program SP4, in step 5P4B, it is determined whether the input key is the "+" key 2A. If a positive result is obtained here, the CPU executes step 5.
The process moves to P41F, reads the "+" key flag in the memory, and determines whether the "+" key flag is logical "1".

If you get a negative result here, it means that this is the first time that “+
” key 2A has been pressed), the CPU sets the “+” key flag to logic “1” in the following step 5P41G.
” and “-” key flags are set to logic “0”, and when the process moves to step 5P41H and the “+” key 2A continues to be pressed, a timer is set to process the “+” key 2A at predetermined intervals. Let it start.

Also, if the CPU obtains a positive result in step 5P41F,
Proceeding to step SP41M, it is determined whether the timer has timed out. If a negative result is obtained here, the CPU moves to step 5P4E and ends the "+" key and "-" key processing program SP4. If a positive result is obtained, the CPU moves to step 5P41H and starts a timer.

Next, in step 5P411, the CPU determines whether the current operating state is a shift state, and if it is a shift state, the process moves to step 5P41J to increase the shift speed in the memory,
In step 5P4E, the "+" key and "-"
The key processing program SP4 is ended.

On the other hand, if a negative result is obtained in step 5P411, the CPU moves to step 5P41K to determine whether or not the current operating state is a strobe state. If it is a strobe state, the CPU moves to step 5P41L to set the strobe in the memory. Increase the interval and set the "+" in step 5P4E.
The key and "=" key processing program SP4 is ended.

Incidentally, if a negative result is obtained in step 5P41K, the CPU moves to step 5P4H and ends the "+" key and "-" key processing program SP4.

Further, when the CPU obtains a negative result in step 5P4B, it moves to the following step 5P4C and the input key is "
-” Determine whether key 2B is pressed.

If a negative result is obtained here, the CPU performs the following step SP.
After moving to 4D and setting the logic "0" to the "+" key and "-" key flags on the memory, the corresponding "+" key and "-" key processing program SP is executed in step 5P4E.
Finish step 4.

Also, if a positive result is obtained in step 5P4C, CP
U is step 5P41F → 5P41G (or SP41
M)→SP41H-3P411-3P41J (or 5
Steps 5P42F-3P42G (or SP42
M) - In the processing loop of 5P42H → 5P42I → 5P42J (or 5P42K or 5P42 → 5P42L) → 5P4E or step 5P42F → SP42M → 5P4E, the process when the "-" key 2B is input is executed.

The CPU presses the "+" key and the "-" key in step 5P4E.
” When the key processing program SP4 is finished, step S
Returning to P5 (FIG. 3), display data S2 is created based on the current operating state of the memory, and by sending this to the display circuit 4, the display data S2 is generated according to the input key input from the input panel 2. After displaying the changed operating state of the VTR 1 to the user, the process moves to step SP6 and the control data creation processing program shown in FIG. 6 is executed.

That is, the CPU enters the control data creation processing program SP6 from step 5P6A, and in step 5P6B, determines whether the current operating state of the memory is the speed change state. If a positive result is obtained, the CPU enters the control data creation processing program SP6 in step 5P6C. Step 5 After creating control data SD
Moving on to P6D.

On the other hand, if a negative result is obtained in step 5P6B, the CPU immediately moves to step 5P6D.

In step 5P6D, it is determined whether or not the current operating state in the memory is a strobe state. If a positive result is obtained, control data SD corresponding to the strobe interval is created in step 5PSE, and the control data is created in step 5P6F. The processing program SP6 is ended. On the other hand, if a negative result is obtained in step 5P6D, C
The PU immediately moves to step 5P6F and ends the control data creation processing program SP6.

After finishing the control data creation processing program SP6 in step 5P6F, the CPU returns to step SP7 (FIG. 3) of the main routine and sends the control data SD created in the control data creation processing program SP6 to the mechanical control circuit 5. The VTR 1 is caused to perform an operation according to the control data SD.

Furthermore, when the CPU finishes step SP7, it returns to step SP2 described above and waits for a new key input from the user whenever the power of the VTR 1 is turned on, and when the input key is operated, it responds accordingly. The above-mentioned operation is repeated.

In addition, the mode control processing program SP shown in FIGS. 3 to 6
I mainly shows processing only for strobe image display, variable speed reproduction, and changing of the strobe interval and variable speed.

In the above configuration, for example, when the user is playing the VTR 1 at variable speeds, if the user desires variable speed playback at a faster playback speed (or slower playback speed), press the "+" key 2A on the input panel 2 (or It is sufficient to press the "-" key 2B), and at this time, by executing the mode control processing program SPI in the mode control circuit 3 of the VTR 1, the playback speed can be increased (or decelerated).

In addition, when the user is displaying a strobe image on the VTR1 while playing a videotape or receiving a television broadcast, if the user wishes to display a strobe image with a longer strobe interval (or shorter strobe interval), the input panel All you have to do is press the "+" key 2A (or "-" key 2B) on the VTR 1. At this time, the mode control circuit 3 of the VTR 1
By executing the mode control processing program SP1, the strobe interval can be increased (or decreased).

Note that when the VTR 1 is in an operating state other than strobe image display or variable speed playback, the user may accidentally press the input panel 2.
Even if two people press the upper “+” key or press the “-” key 2B,
The VTR 1 is configured not to perform any processing.

According to the above configuration, in the mode control circuit 3, when the "+" key 2A or the "-" key 2B is pressed from the input panel 2, the VTRI is in the strobe image display state, the variable speed playback state, or the "+" key 2A and the "-" key 2B are not accepted, and accordingly sends control data SD to the mechanical control circuit 5, whereby the V
By controlling TR1 to perform a predetermined operation,
Using a set of variable input means consisting of the "+" key 2A and the "-" key 2B, the strobe interval of strobe image display and the playback speed of variable speed playback can be changed as appropriate, thus simplifying the configuration of the input panel 2. At the same time, it is possible to realize a VTR 1 with further improved usability for the user.

In the above embodiment, the mode control circuit and the mechanical control circuit are configured with separate microcomputers, but the present invention is not limited to this, and the mode control circuit and the mechanical control circuit are configured with a single microcomputer. It can also be applied to a VTR configured to be controlled by a computer.

Further, in the above-described embodiment, a variable input means consisting of a "+" key or a "-" key is used, but the present invention is not limited to this, and can be applied to variable input means consisting of a rotary dial, etc., for example.

Further, according to the embodiments described above, the present invention is applied to a VTR that is capable of displaying strobe images and performing variable speed playback, but the present invention is not limited to this. It can also be widely applied to devices that can display images and reproduce them at variable speeds.

H Effects of the Invention As described above, according to the present invention, the input means for changing the playback speed of variable speed playback and the input means for changing the strobe interval of strobe image display are shared, and the variable input means is controlled by the speed change control means. By performing predetermined variable speed processing in accordance with the operating state when operated, it is possible to obtain an image reproducing device that can significantly improve usability for the user.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the main parts of an embodiment of the image reproducing apparatus according to the present invention, FIG. 2 is a route map showing the arrangement on the input panel, and FIGS. 3 to 6 are executed in the mode control circuit. FIG. ■・・・VTR, 2・・・Inlet panel, 2
A: Old: "+" key, 2B: "-" key,
3...Mode control circuit, 5...Mechanical control circuit.

Claims (1)

[Scope of Claims] An image reproducing device capable of reproducing image information recorded on a predetermined recording medium and also performing variable speed reproduction and strobe image display, wherein the reproduction speed of the variable speed reproduction and the strobe interval of the strobe image display are changed. An image reproducing device comprising: a variable input means; and a speed change control means for determining an operating state when the variable input means is operated and performing predetermined variable speed processing in accordance with the operating state.