JPH04336890A - Reproduction device and printer - Google Patents

Abstract

PURPOSE:To realize the reproduction device and the printer in which a defect due to analog connection is avoided. CONSTITUTION:The system is provided with a reproduction device for a video signal, a video signal reproduction section having a digital interface section 101 sending the reproduced video signal from the reproduction device as a digital data, an operation member 30 for retrieving a pattern of the above reproduction device and a digital interface section 320 to supply the control data generated by the member 30 to the reproduction device, a printer 3 able to print the reproduction video signal from the reproduction device and a data bus 228 connecting both the above interface sections, the operation member 30 is provided to the printer and the operation member of the printer side searches a VTR 11.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video printing system which is an apparatus for printing video signals and controls a VTR or the like from the printer side.

0002

2. Description of the Related Art With the spread of camera-integrated VTRs, there is an increasing demand for obtaining color prints from video signals.

Generally, when a printer prints a screen corresponding to a video signal played back from a video tape recorder (VTR), the desired screen in the playback signal from the VTR is captured into a memory in the printer, and a predetermined screen is printed from the memory. The video data was read out and printed out at high speed.

FIG. 11 is a diagram schematically showing this type of conventional system, in which 81 is a VTR, 82 is a monitor, and 82 is a monitor.
3 is a video printer. Hereinafter, the operation for printing a desired screen out of a large number of screens recorded on a tape will be briefly described. First, the VTR 81 is set to a playback mode, and a playback video signal from the VTR 81 is supplied to the monitor 82 and printer 83. While checking the screen displayed on the monitor 82, the operator operates the operation unit of the printer 83 at the timing when a desired screen is displayed. In response to this operation, the control unit 85 controls the memory unit 8.
4 is for one frame or one field (hereinafter simply 1
The memory section 84 is controlled so as to store video signals corresponding to one screen. When the memory section 84 takes in the video signal for one screen, it reads it out at a predetermined speed corresponding to the printing speed of the printing section 86. As a result, the printing section 86 can print the desired screen.

[0005]

Conventionally, the video signal supplied from the VTR 81 to the printer 83 was generally an analog video signal.

[0006] In the conventional system as described above, even when printing multiple screens on the same tape, after selecting one screen, it takes a relatively long time of about 1 minute per print. You have to repeat the process of printing, then selecting the next screen. Therefore, when printing a large number of screens, the operator must operate the system at the printing device all the time until all of the screens are printed.

[0007]Furthermore, when a user wants to reprint a screen that has been printed once, it is almost impossible to select the same screen again. In other words, taking NTSC as an example, the VTR is 1
Since a video signal of approximately 30 frames or 60 fields per second is recorded as a moving image, each tape capable of recording 120 minutes will record approximately 430,000 fields of images. , it is virtually impossible to search for a specific screen again from among these.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the inconveniences caused by the conventional analog connection, to enable various operations, especially quick search operations, from the printer side, and to improve the operability of video printing operations. An object of the present invention is to provide a reproduction device and a printer device that constitute a printing system.

Another object of the present invention is to provide a camera-integrated VTR.
The purpose is to simplify the wiring in the device and enable its miniaturization.

0010

[Means for Solving the Problems] The present invention is a reproducing device for reproducing video signals from a medium, which includes an input means for inputting a signal for specifying a reproduced image from a printer interface, and an input means for inputting a signal for specifying a reproduced image from the input means. The apparatus is characterized in that it has means for recording a reproduction control signal on the medium in accordance with the above.

[0011] The present invention also provides a printer device for use with a playback device that receives a signal for designating a playback image from a medium and records a playback control signal on the medium in accordance with the designation, wherein the playback device specifies the playback image. The present invention is characterized in that it has means for supplying a signal to the printer interface to perform the printer interface.

[0012] The present invention also provides a reproducing apparatus comprising: input means for inputting a signal for designating a printer interface reproduction image; and recording means for recording a reproduction control signal on the medium in accordance with a designation from the input means; The present invention is characterized by comprising a printer device used together with a reproduction device and having a supply means for supplying a signal for specifying the reproduction image to a printer interface.

[0013]

[Operation] Using the operating member provided on the printer side, a screen search of the playback device can be performed via the first and second digital interface sections.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of a video printing system showing an embodiment of the present invention. 1 is a video recording and reproducing device (VTR), 2 is a monitor, and 3 is a video printer. The VTR 1 consists of a camera-integrated VTR 11 and a digital interface 101, and is connected to a digital interface 320 in the video printer 3 via a data bus. The video printer 3 includes a memory section 31, a system controller (also referred to as a system controller) 32, a printing section 33, a printing section 34, and a various signal generation section 38.
, print paper 4, and other necessary mechanisms are included. Reference numeral 30 denotes an operation unit, which is capable of controlling not only printing operations but also the operating state of the VTR.

FIG. 2 is a block diagram showing the configuration of the VTR main body, which includes a system controller 201, a servo system 2
02, it has the same components as conventional ones such as a drum 206, but an operation control signal is input to the system controller 201 via a digital interface (I/F) 101 connected to a data bus 228 from the printer. The difference is that they are configured to be output.

Next, the recording format of print data will be explained with reference to FIGS. 3 and 4.

As shown in FIG. 3, the print data area PA
corresponds to 1.5 horizontal scanning periods (H) of the video signal. That is, the aforementioned switch 209 is turned on only during the period corresponding to this 1.5H. This 1.5H area is shown in Figure 5.
It is divided into an index part of 1.26H and a data part of 0.24H, as shown in FIG. A cue signal, which will be described later, is recorded in the index section, and print data is recorded in the data section.

As shown in FIG. 3, the data section records five words WD0 to WD4, start identification data S, end identification data E, and CRCC for error correction. Each word WD0 to WD4 consists of 8 bits, and the contents of each word are as shown in FIGS. 4(a), (b), and (c).

(a) is the date mode, which shows the shooting date, day of the week, and error correction code; (b) is the time mode, which shows the shooting time, minutes, seconds, and frame number. , error correction code, and (c) is the hour, minute, second frame number from the beginning of the tape in time-lapse mode. and an error correction code each expressed in 8 bits.

Note that modes (a), (b), and (c) may be selected as appropriate, or a plurality of modes (for example, a and c) may be recorded alternately on tracks.

Next, FIG. 5 shows the timing of various data on the data bus. The upper part of the figure (a), (b), and (c) are information called VTP data from the VTR to the printer, and (b) is digital still image information (VIDEO-DA).
TA) and VTP code.

As shown in detail in (c), the VTP code includes a VTR STATUS code indicating the operating status of the VTR, words WD0 to 4 of CORDING-INDEX, which is the 8mm VTR subcode data mentioned above, and the printer side. Print commands and various operation instructions for
It consists of data.

As shown in the timing chart (a), V
It changes from "L" to "H" in accordance with the timing of transmission from the TR.

The lower portions (d), (e), and (f) of the figure are information called PTV from the printer to the VTR, and (e) is digital still image information (VIDEO-DATA) and the PTV code.

[0025] The PTV code is PRINTER STATU which indicates the status of the printer as shown in detail in (f).
S, WD0 to WD4 similar to (c), and a video command for giving instructions for video operation.

This data area is used to operate the jog shuttle dial 305 of the operation unit 30 in FIG.
It will be transferred to the VTR side.

Further, FIG. 6 shows a bitmap of each information.

The above-mentioned video command is shown at the bottom, and the 0th bit specifies whether coding index information etc. should be written onto the tape T or read out, and the 1st and 2nd bits specify which Gives an instruction as to whether to perform the above read/write to the area. In addition to INDEX, there are many information areas available in the PCM subcode, so these 2 bits can be used to identify and specify up to 4 areas. The third bit is set to "H" when a video data transfer request is issued for digital data such as PCM-SV according to the video data transfer timing shown in FIG. The fourth to seventh bits are used to specify the search mode of the VTR. The following running conditions can be specified.

0 REWIDE 1 Search x (-20) 2 Search x (-5) 3 Search x (-1) 4 REVERSE x (-1) 5 SLOW SPEED REV. PLAY6
VERRY SLOW SPEED REV
．． PLAY 7 STILL 8 STOP 9 VERRY SLOW SPEED PL
AYASLOW SPEED PLAY BPLAY
×1 C search ×2 D search ×5 E search ×20 FFF Also, as shown in Figure 6, the four data words WD1 to WD4 have 2 bits for the sort number, 2 bits for the magnification (print size), and the number of prints. 4 bits are allocated to . That is, four types (four groups) of sort numbers can be set, and different magnifications can be set for each sort number. Further, the number of prints can be set from 0 to 14 using 4 bits, and when these 4 bits are all "1", it has a special meaning of multi-screen printing. This means that the 25 screens that follow the screen that is being reproduced are printed as one screen, and is a print mode that is expected to produce the effect of solid printing of a negative as in conventional silver halide photography.

Word WD0 is a management word for words WD1 to WD4, and is a 1-bit (second bit) indicating whether a print screen is created with one field's worth of data or one frame's worth of data. Contains 1 bit (first bit) indicating whether or not the process has ended. The 0th bit is a bit indicating whether or not there is a print designation screen (hereinafter simply referred to as the parent screen) within 10 seconds immediately before this screen to be printed, and its setting will be described later. Third
The seventh to seventh bits are 5-bit data indicating which frame of the frame defined by a time code or the like this print screen corresponds to.

Next, the operation of the system of the present invention will be explained.

First, the general flow of the operation of the video printing system will be explained with reference to FIG.

Information digitized by a digital I/F (interface) 101 from the VTR unit 1 is transferred to the video printer 3 via a data bus. The video information and additional data such as control signals and date information are once received by the digital I/F 320 and supplied to the memory section 31 and system controller 32.

The system controller 32 selects data and controls operations.

Date information and comment information input from the character generator of the video camera 11 are exchanged into video signals in the composite signal generation unit 38 for visualizing them as video signals, and when the switch 391 is closed, the composite signal is 37
It is combined with the still image information outputted from the memory section 31 at the printing section 33 and printed onto the print paper 4 at the printing section 33 .

On the other hand, the above-mentioned equivalent information is provided by switch 392.
When the printer is closed, the image is supplied to the printing section 34, and is normally recorded on the printing paper 4 other than the printing area of the printing section 33 by the printing head. Of course, print within the area,
Even if the composition is printed on print paper, there is no problem at all and it is within the scope of the present invention.

Furthermore, the additional data of the words WD0 to WD1 may be generated as digital binary information by the bar code signal generator 341, and may be recorded on the same paper 4 by the printing unit 34.

When recording, the switch 393 is controlled to be closed.

When performing the above three types of recording on the same paper 4, these paper feeding and positioning controls are executed by the paper feeding mechanism by the system controller 32.

In addition, a calendar and clock 36 is built in to perform time-related processing such as the date and time at the time of printout, and overall timer control. It is processed together with other data.

The switches 39 (391 to 393) are operated by an operation section 32 that is in charge of manual operation buttons provided on the printer 3 such as the mode changeover switches 301 and 302.
1 detects this operation, and the system controller 32
and is selectively processed as a SELECT signal.

Note that the sensor section 322 is a detection processor that is responsible for reading barcode information shown at the lower left of FIG.

The operations described above are performed while being checked on the video/audio (AV) monitor device 2 connected to the VTR 1.

The video signal reproduced by the recording/reproducing device section 1 is supplied to the monitor device 2. The operator operates the camera-integrated VTR 1 while looking at the image displayed on the monitor device 2.
1 using the operation unit 30 on the printer side.

That is, the user performs fast forwarding or rewinding in the search until the desired screen to be printed out approaches, and then searches for the screen while checking the image using slow speed playback or still playback. These operations are performed using a jog/shuttle dial 305 and a pause button 303, which are well known in VTRs.

The VTR search operation command generated during the above operation is carried on the data bus shown in FIG.
Data is transferred between the /F 320 and the I/F 101 and supplied to a remote control terminal (for example, a rank terminal) of the camera-integrated VTR.

The detailed operation of the system of the present invention will be described below with reference to the flowchart shown in FIG.

First, the VTR 11 is put into playback mode by operating the operation unit 30 shown in FIG. At this time, VT in Figure 2
The system controller 201 of R11 controls each part of the device according to control information from the operation unit 321 via the I/Fs 320 and 101. For example, the system controller 201
is connected to the capstan motor 203 via the servo circuit 202.
, controls the drum motor 204, and selects a selection signal generator 225.
via switches 209, 212a, 212b, 214
control. Of course, in this playback mode, the playback speed is changed as appropriate by operating the dial 305, pause key 303, etc. shown above. This change is for capstan motor 203
This can be realized by changing the rotational speed of the drum motor 204, and furthermore, by changing the rotational speed of the drum motor 204, the relative speed between the heads Ha, Hb and the tape T can be kept constant. It is assumed that the head moving mechanisms Ma and Mb always guarantee the difference in inclination between the trace locus of the head and the track.

In such a playback mode, the playback video signals from the recording and playback heads Ha and Hb provided on the drum 206 are transmitted through the PB side terminals of the switches 212a and 212b, the amplifiers 213a and 213b, and further through the switch 214. The signal is made into a continuous signal and is input to the video reproduction signal processing circuit 218. The video signal from the signal processing circuit 218 is transmitted through the PB side of the switch 220 and the N side of the switch 229 in FIG.
is output to monitor 2.

On the other hand, digital data reproduced from the audio area AA and data area PA passes through a switch 214, a normally closed switch 215, and a code data decoder 219, and in the case of an audio signal, is transferred to the D/A 2.
30, the data is converted into an analog signal and output, and in the case of still image data, it is temporarily stored in the image memory 217 via the SV side terminal of the switch 251.

The operator searches for a desired screen by operating the dial 305 and the like while checking the output image on the monitor 2. Then, at the timing when a desired screen is displayed, the pause key 303 is operated to put the VTR 11 into still image playback mode. If you operate the print designation button 304 in this state,
This information is sent from the key operation unit 321 to the system controller 201 via the system controller 32, I/Fs 320 and 101.

The operations up to this point correspond to step 1 in the flowchart of FIG.

Next, the process advances to step 2 in FIG. 7, and the size to be printed is specified using the operation unit 321. Thereafter, the operation unit 321 is used to specify image quality (step 3), number of sheets (step 4), sorting (step 5), etc. Steps 2 to 4 are set for each print size. Whether or not another print size is available is instructed from the operation unit 321 in step 6. If there is, the process returns to step 2; otherwise, the process proceeds to step 7.

In step 7, the data generated in steps 2 to 5 above (hereinafter referred to as print data) is transferred to the I/F
System controller 201 via 320 and 101
and generated by the print data generator 224,
In step 8, this print data is sent to the code data encoder 208, as well as to the display signal generator 222. Here, the reproduced video signal outputted via the switch 220 and the output signal of the display signal generator 222 corresponding to the print data are mixed in an adder 226, and characters indicating the print data are added to the image to be printed. A video signal corresponding to the multiplexed screen is digitized by an AD converter 227. The output of the AD converter 227 is supplied to the image memory 217. At this time, the print data generator 224 takes in one frame worth of video signal from the AD converter 227 according to instructions from the memory control circuit 216 and repeatedly outputs it. As a result, the video signal from the image memory 217 is converted into analog by the DA converter 223,
Output to the monitor 2 via the S side of the switch 229 (
Step 9).

Next, the operator looks at the screen displayed on the monitor 2, checks the screen to be printed and the print data, and checks whether the contents are as expected (step 1).
0). If the content is not what you want, go back to step 1 and start over, if it is what you want, go to step 11.
Then proceed to record the print data described above.

Recording of this print data will be explained below.

Usually, when the VTR shown in FIG. The digitized audio signal or digitized still image data is also read out from the memory 217 at a data rate equivalent to that of the audio signal, and is then read out by the switch 250.
In the case of audio, the AUD end is selected, and in the case of still images, the SV end is selected, encoded by the code data encoder 208, and supplied to the switch 210 via the normally closed switch 209. Figure 3 shows the rotational phases of the heads Ha and Hb and the tape T.
The upper trace position is shown schematically and the switch 210
During the period when the heads Ha and Hb trace the video area VA, the video recording signal processing circuit 207 is connected to the amplifier 211a.
, 211b, and during the period when the heads Ha and Hb trace the audio area AA, the code data encoder 208 is connected to the amplifiers 211a and 211b.

Now, when printing the print data in step 11 of FIG. 7, the selection signal generator 225
The switch 209 is controlled by the signal C3 from the head H, and the head H
It is turned on only during the period when a and Hb are traced. In addition, the signals C1 cause the switches 212a and 212 to switch only during this period.
b is connected to the REC side. Thereby, the print data encoded by the code encoder 208 can be recorded in the print data area PA on the tape T. That is, if the print screen and print data are as expected in step 10 described above, step 1
At step 1, print data is recorded in the print data area PA of the track in which the video signal currently being reproduced is recorded. That is, the print data shown in FIG. 4 is recorded in the print data recording area PA of the track where the print designation screen is recorded.

Thereafter, the system controller 201 drives the capstan motor 203 at the same speed as during normal recording, and records a cue signal for 10 seconds in the above-mentioned header section. For example, a 2.9 MHz carrier signal is normally recorded in the beder section, and a 5.8 MHz carrier signal is recorded in the portion corresponding to the 10 seconds. And the aforementioned word WD
The 1 bit indicating the presence or absence of the parent screen of the 0th bit of 0 is shown in Figure 7.
In step 10, the cue signal is played back, and this is the result of step 5.
If it is 8 MHz, "1" will be automatically set.

Next, an explanation will be given of the operation when printing a print designation screen from a tape on which a print designation screen has been set in this manner.

First, when a tape with a print designation screen set is loaded into the VTR 11 and a print command is issued using the key operation unit 321, the system controller 201 controls the capstan motor 203 and drum motor 204 via the servo circuit 202. While driving the tape T at high speed, the signal from the aforementioned print data area PA is reproduced. At this time, switches 212a and 212b are connected to the PB side, and switch 214 connects amplifiers 213a and 213b to the code data decoder side. The switch 215 is turned on at the timing when the heads Ha and Hb trace the print data area PA, and the code data decoder 219
outputs "1" as a cue control signal when the reproduction signal of the header section mentioned above is 5.8 MHz. In response to this cue control signal becoming "1", the system controller 201 controls the capstan motor 203 to transport the tape in the opposite direction to that during recording at the same speed as during recording.

In this state, the code data decoder 219 reproduces the data from the data section, and if the 4-bit data indicating the number of prints in the data shown in FIG. Stop. At this time, it is possible to set either a mode in which transport of the tape T is stopped only when unprinted data is detected, or a mode in which transport of the tape T is stopped regardless of whether it has been printed or not. It is. After the tape T is stopped, the reproduced screen is printed as follows.

When the tape T is stopped, the heads Ma and Mb on the head moving mechanism trace the recorded track of the designated screen, and the reproduced video signal at this time is sent to the video reproduction signal processing circuit 218 and the adder 226. ,A/D
The image is taken into the image memory 217 via the converter 227. Further, print data is taken in via a code data decoder 219 to a printer control signal generator 221 that functions as an interface. When these captures are completed, the data stored in the image memory 217 and the printer control data output from the printer control signal generator 221 are transferred to the printer data bus 228. The printer 3 prints the video data from the data bus 228 according to the control data, and when printing is completed, the data bus 2
Data indicating the end of printing is sent to 28. Then, print completion data from the printer 3 is sent to the system controller 201 via the printer control signal generator, and in accordance with this, the VTR performs the following operations.

That is, when the VTR is supplied with print end data, if the first bit of word WD0 is "1", "
Rewrite the print data to 0". At this time, V
The operation of the TR is the same as that when recording print data, so a description thereof will be omitted. Then, the next specified screen is searched, and if a parent screen exists, the process starts with the step of transporting the tape in the opposite direction at the same speed as when recording.
If it does not exist, the process starts with the step of transporting the tape in the forward direction at high speed.

Finally, examples of printing applications output by the system of the above embodiment are shown in FIGS. 8 to 10. 8 and 9 are examples of same-size printing, and the print data of WD0 to WD4 described earlier is recorded in the lower left of the print as a bar code. If the printer 3 is provided with the function of recording and reproducing this barcode using the sensor section 322, it becomes possible to search for the original video signal on the tape T from this print. Figure 10 shows a multi-screen that is printed out when the print number data for WD1 to WD4 are all "1", and the screen address on the tape, such as the time code, is printed at the bottom right of each reduced image. There is. VTR
If a function is provided for searching the tape T using this time code, it becomes possible to search for the original video signal on the tape T in the same way.

In a system including a VTR configured as described above, first, after selecting all the screens to be printed,
Since each print screen can be automatically printed, the operability of this type of system is dramatically improved.

Furthermore, even a screen once printed can be easily reprinted by reproducing the print data on the tape.

Furthermore, by adding search marks for cueing to a predetermined number of screens near the print designation screen, the tape can be transported at high speed when searching for the print designation screen.

[0069] In addition to the shooting date, the time codes in WD0 to WD4 mentioned above include the frame number from the beginning of the tape. By using this information, it is possible to easily search for video signals and PCM-SV recorded portions on the tape T. Further, if additional information such as the date is not required, select OFF with the switch 39.

As explained above, according to this embodiment, there is provided a video signal reproducing device, a video signal reproducing section having a first digital interface section for transmitting the reproduced video signal from the reproducing device as digital data, and , an operating member for searching the screen of the reproducing device, and a second digital interface section for supplying control data generated by the operating member to the reproducing device, and a reproducing video signal from the reproducing device. Since the VTR is equipped with a printer that can print images, and the operating member is provided on the printer side, various operations can be performed from the printer side, and the VTR side does not have a dedicated search member (such as a switch). You can perform good searches. This is extremely effective in camera-integrated VTRs whose camera bodies are becoming increasingly smaller. Also VTR
Since digital interface sections are provided on both the side and the printer side, there is no need for complicated wiring, and the wiring connector that connects the VTR and printer can be small and simple, so it is suitable for camera-integrated VTRs. , which is even more effective.

Furthermore, since both digital interface sections are connected to each other by a single data bus, the wiring can be further simplified, making it possible to make a special contribution to downsizing of the camera-integrated VTR.

[0072] In the embodiments described above, a tape-shaped medium is used as the medium, but the medium is not limited to this, and may be a disk-shaped medium or other forms such as a solid-state memory. Further, in this embodiment, a television signal is taken as an example of the video signal, but the present invention is not limited to this, and a still image such as an electronic file may be used.

[0073]

As described above, according to the present invention, a quick search operation can be performed and the operability of the video print system can be improved.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a video print system according to an embodiment of the present invention.

FIG. 2 is a block diagram of the VTR side of the system in FIG. 1;

FIG. 3 is an explanatory diagram of a recording format used in the present invention.

FIG. 4 is an explanatory diagram of recording data used in the present invention.

FIG. 5 is a timing diagram of data on a data bus.

FIG. 6 is a diagram showing data allocation on a data bus.

FIG. 7 is an operation flowchart of the present invention.

FIG. 8 is a diagram showing an example of printing.

FIG. 9 is a diagram showing an example of printing.

FIG. 10 is a diagram showing the format of a multi-picture diagram.

FIG. 11 is a block diagram of a conventional system.

[Explanation of symbols] 1 VTR section 3 Printer 30 Operating members 101, 320 Digital interface section 22
8 Data bus

Claims (3)

[Claims] 1. A playback device that plays back a video signal from a medium, comprising: input means for inputting a signal for specifying a playback image from a printer interface; and playback control for the medium in accordance with the specification from the input means. 1. A reproducing device comprising: means for recording a signal. 2. A printer device for use with a playback device that receives a signal for specifying a playback image from a medium and records a playback control signal on the medium in accordance with the designation, the printer device configured to specify the playback image. What is claimed is: 1. A printer device comprising means for supplying a signal for printing to a printer interface. 3. A reproduction device comprising: input means for inputting a signal for designating a printer interface reproduction image; and recording means for recording a reproduction control signal on the medium in accordance with a designation from the input means; 1. A printer system comprising: a printer device used together with a reproduction device and having supply means for supplying a signal for specifying the reproduction image to a printer interface.