JPH07253625A - Recording device for video film - Google Patents

Abstract

PURPOSE:To perform the recording of a video film capable of easily confirming the light emission state of a recording light source corresponding to a printing degree test signal and to easily perform a printing degree test. CONSTITUTION:By the CPU 41, the LED drive part 47s and 47p are controlled, the voltage of the LED driving signal is varied for varying the light quantity of the LED 48s and 48p, and the printing degree test signal and the display pattern for displaying the light quantity of the LED 48s and 48p are generated and supplied to the LED drive part 47s and 47p through the DMA part 44, the switch 45 and the serial-parallel converter 46. By the LED drive part 47s and 47p basing on the control of the CPU 41, the light quantity is varied by driving the LED 48s and 48p, the printing achievement test signal is recorded in the signal recording area 5 of the film 49, and the display pattern showing the light quantity of the LED 48s and 48p is recorded in the display recording area of the film 49.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motion picture film recording apparatus, and more particularly to a motion picture film recording apparatus for recording audio data on a digital soundtrack formed along the running direction of the motion picture film.

[0002]

2. Description of the Related Art Conventionally, recording of a motion picture film has been performed by editing video and audio to be recorded and recording the edited video and audio on a film. For example, voice
It was recorded as audio data on a digital soundtrack along the running direction of the movie film. The recording of the voice data is performed by, for example, editing a voice negative film recording the voice data and transferring the edited voice negative film to a positive film.

In order to optimize the recording condition of this negative film, prior to actual recording, several kinds of baking test signals with different light emission conditions of the recording light source are recorded on the film, and the film is developed. The burn-in test signal recorded on the film was evaluated and the development conditions were measured.

In the conventional motion picture film recording apparatus, for example, a burn-up test signal in which the light emission state of the recording light source is changed is recorded in the digital sound track. Then, for example, the development condition is measured by measuring the blackening density of the baking degree test signal on the developed film and checking the relationship with the emission state of the corresponding recording light source.

[0005]

However, a motion picture test signal is recorded on the motion picture film recorded by the above-described conventional motion picture film recording apparatus, but the motion picture test signal is recorded on the motion picture film. It is necessary to record the light emission state of the corresponding recording light source on paper, labels, etc.
This record was annoying.

Further, since a plurality of burn-in test signals are recorded on the motion picture film, and the burn-in test signals are difficult to identify only by looking at them, it is difficult to identify the burn-in test signals on paper or labels. There was a problem that it was easy to make a mistake in the correspondence with the light emitting state.

Further, if the label or the like on which the light emitting state of the recording light source is recorded is lost, there is a problem that the light emitting state of the recording light source corresponding to the burn-up test signal recorded on the motion picture film cannot be understood. .

The present invention has been made in view of the above problems, and produces a motion picture film in which the light emission state of the recording light source corresponding to the burn-up test signal recorded on the digital audio track can be easily confirmed. You can
An object of the present invention is to provide a movie film recording apparatus capable of easily measuring development conditions.

[0009]

In order to solve the above problems, the present invention relates to a motion picture film recording apparatus for recording audio data on a digital sound track formed along the running direction of the motion picture film. A test signal generating means for generating a test signal, a display pattern generating means for generating a visible display pattern, and a recording light source, and the display pattern generated by the display pattern generating means or the test signal generating means. Recording means for switching the burning degree test signal to record on the digital sound track, emission control means for changing the emission state of the recording light source, control of operation of the emission control means, and control for switching the recording means And a recording degree test signal in which the light emission state of the recording light source is changed is recorded on the digital sound track. Both the display recording area provided on the front or rear or the front and rear regions are baked absorbency test signal is recorded, characterized by recording a display pattern of a light-emitting state of a light source for recording.

Further, the motion picture film recording apparatus according to the present invention is characterized in that the display pattern generated by the display pattern generating means is a display pattern indicating the amount of light of the recording light source.

Further, in the motion picture film recording apparatus according to the present invention, by the recording means, two digital sound tracks formed along the running direction of the motion picture film are changed in the light emission state of the recording light source. It is characterized in that a test signal and a display pattern showing a light emitting state of the recording light source are recorded.

[0012]

In the motion picture film recording apparatus according to the present invention, the recording means is controlled by the control means to record the firing degree test signal in which the light emitting state of the recording light source is changed on the digital sound track, and the firing degree test is performed. A display pattern indicating the light emission state of the recording light source is recorded in a display recording area provided in front of, behind, or in front of the area in which the signal is recorded.

Further, in the motion picture film recording apparatus according to the present invention, the degree of burn-up by changing the light emission state of the light source for recording is recorded by the recording means on the two digital sound tracks formed along the running direction of the motion picture film. A test signal and a display pattern indicating the light emission state of the recording light source are recorded.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the drawings.

The motion picture film recording apparatus according to the present invention comprises:
For example, a movie film having the recording format shown in FIG. 1 is recorded.

The motion picture film 1 shown in FIG. 1 has an image recording area 2 in which an image is recorded, a perforation section 3 for conveying the motion picture film for projection, and a digital sound track 4 in which audio data is recorded.
And so on.

The digital sound track 4
In the signal recording area 5a, a burn-in degree, that is, a burn-in degree recording signal in which the light amount of the recording light source is 85 is recorded as a recording pattern, and a display pattern 7a, for example, in a display recording area 6a provided behind the recording area 5a, is recorded. Display showing the degree of baking
Den = 85 ", date display" June. 25.9
3 ", a display" Rec = 2 "indicating the number of recordings, a display" Dev = abcdef "indicating the developing place, etc. are recorded. Further, a burn-in degree recording signal having a burn-in degree of 90 is recorded in the signal recording area 5b. Recorded as a pattern, display recording area 6
In b, a display pattern 7b, for example, a display "D indicating the degree of baking"
For example, en = 90 ″ is recorded.

Specifically, the signal recording areas 5a and 5b are
The burn-up test signal recorded in (1) is recorded as a recording dot pattern of 43 dots in the direction perpendicular to the film traveling direction, for example. In addition, the display recording amount areas 6a, 6b
The display patterns 7a and 7b recorded in 1 are recorded as recording dot patterns in the same manner as the audio data.

Then, the development condition is measured, that is, the burn-up test is performed by measuring the blackening density of the burn-up test signal recorded as described above and checking the relationship with the light emission state of the recording light source. The blackening density of the film is measured, for example, as shown in FIG. 2, by measuring the blackening density in the measured portion 8 of the burn-up test signal recorded in the signal recording area 5.

When the burn-up test signal is not recorded, the audio data is recorded on the digital sound track 4 as a recording dot pattern of, for example, 43 dots in the direction perpendicular to the film advancing direction.

The film audio recording apparatus for making the above-mentioned motion picture film 1 is, for example, as shown in FIG. 3, an audio reproducing apparatus 11 for reproducing audio, a recording apparatus 12 for recording on an audio negative film, and a print. The device 14 and the like. Then, the audio reproducer 11 reproduces the audio data, and the recording device 12 records the audio data from the audio reproducer 11 on the audio negative film 13. Further, the printing device 14 transfers the audio negative film 13 to the positive film 15 to create the motion picture film 1.

Next, an embodiment in which the present invention is applied to a recording device for recording audio data on the digital sound track of the above-mentioned motion picture film will be described.

This recording apparatus, as shown in FIG. 4, for example, includes a speech encoding processing section 21 for performing encoding processing and the like.
An ECC encoder 22 that performs error correction coding, a synchronization information addition unit 23 that adds synchronization information, an arithmetic processing unit (CPU) 24, a character data acquisition unit 25, a character data addition unit 26, and the like are provided.

Then, the voice encoding processing unit 21 encodes the input voice signal and performs processing such as data compression.
Further, the ECC encoder 22 includes a voice encoding processing unit 21.
The audio signal encoded in (1) is error-correction encoded and output. Further, the synchronization information adding section 23 adds the synchronization information to the output of the ECC encoder 22 and outputs it.

Further, the CPU 24 generates character data as an indication of the degree of burn recording signal or the light emission state of the recording light source, the character data fetching section 25 fetches the character data from the CPU 24, and the character data adding section 26 The recording dot pattern is output based on the character data from the data capturing unit 25.

The recording device 12 controls the switch 27 for switching between the output of the character data adding section 26 and the output of the synchronization information adding section 23, the switch 27 and the character data capturing section 25. Control unit 2
8 and a data film writing unit 29 that outputs a recording signal.
A recording signal is output based on the output supplied via 7 to drive the light emitting diode (LED) 30,
The optical signal from 0 is recorded on the film 31.

More specifically, the above-mentioned recording apparatus is a CPU for controlling the recording apparatus as shown in FIG. 5, for example.
41, a ROM 42 in which programs and the like are stored, a RAM 43 for storing data, and a DMA unit 44 for direct memory access (DMA) transferring the data stored in the RAM 43 and outputting as a serial signal.

Then, the CPU 41 executes a program stored in the ROM 42 to generate a burn-up test signal or a recording dot pattern of a display pattern based on a character code or the like from the serial input / output. Then, for example, the CPU 41 stores the generated recording dot pattern in a certain area of the RAM 43, and the DMA unit 44 reads the stored recording dot pattern, converts it into a serial signal, and outputs it.

Further, as shown in FIG. 5 described above, the recording apparatus switches the audio data input which is a serial signal and the output of the DMA 44 by switching the switch 4.
5 and serial / parallel converters 46s and 46p for converting the signal from the switch 45 into a parallel signal and outputting the parallel signal.
And the LED drive units 47s and 4s that output the LED drive signal.
7p, LED48s consisting of diode array, etc.,
48p.

Further, although not shown, the LED driving units 47s and 47p output L, for example, an LED driving voltage.
It is composed of an ED driver and a voltage control unit for varying the LED drive voltage from the LED driver. Then, the voltage control unit changes the LED driving voltage from the LED driver according to the control of the CPU 41 to change the LED 48s, 48s.
Control the light intensity of p.

The switch 45 is used for the CPU 4
Audio data input and the above-mentioned DMA based on the control of 1.
The output of 44 is switched and supplied to the serial / parallel converters 46s and 46p. That is, the audio data and the burn-up test signal or the display pattern are switched.

Furthermore, the serial / parallel converter 46
s and 46p convert the signal supplied through the switch 45 into a parallel signal and supply it to the LED drive units 47s and 47p. The LED driving units 47s and 47p drive the LEDs 48s and 48p based on the signals supplied from the serial / parallel converters 46s and 46p to drive the film 4
Record at 9.

The film 49 has the structure shown in FIG. In this recording device, the LE
Recording is performed on, for example, the digital sound track 4 by D48s and 48p.

In this recording device, as described above, the CPU
Reference numeral 41 controls the LED drive units 47s and 47p to change the voltage of the LED drive signal to change the light emitting state of the LEDs 48s and 48p, that is, the light amount, and also to generate the burn-up signal to generate the DMA unit 44, the switch 45, and the serial port. It is supplied to the LED drive units 47s and 47p via the / parallel converter 46. The LED drive units 47s and 47p are LE
A burn-up test signal in which the light amounts of D48s and 48p are changed is recorded in the signal recording area 5.

Further, the CPU 41 controls the signal recording area 5
LEDs 48s, 4 corresponding to the burn-up test signal recorded in
The DMA unit 4 generates a display pattern indicating the light amount of 8p.
4, through the switch 45 and the serial / parallel converter 46 to supply to the LED drive units 47s and 47p. And CPU41 is LED drive part 47s, 47p is LE.
The display pattern 7 indicating the light amounts of D48s and 48p is recorded in the display recording area 6 provided behind the signal recording area 5.

As a result, the measurer who measures the developing conditions looks at the display pattern 7 recorded in the display recording area 6 of the motion picture film 1 to determine whether the recording light source corresponding to the recorded burn-up test signal has been recorded. The light emitting state can be easily confirmed, and the developing conditions can be easily measured.

The film 49 is wound around the film reel 50 and is sequentially transferred for recording. Specifically, the recording device uses the film 49
The frequency generation circuit 51 that generates a signal of a frequency based on the running of the reel and the reel drive circuit 5 that generates a drive signal.
2 and a DC motor 5 for driving the film reel 50
3, a motor drive circuit 54 that generates a drive signal,
A switch 55 for switching the AC power supply and a motor 56 for moving the film 49 are provided.

The frequency generating circuit 51 generates a signal of a frequency based on the running of the film 49, and the reel drive circuit 52 drives the DC motor 53 based on the instruction from the CPU 41 to drive the film reel 50. Then, the servo control is performed by the frequency from the frequency generation circuit 51. That is, the DC motor 53 drives the film reel 50 to feed and wind the film 49.

The motor drive circuit 54 has the above-mentioned C
Under the control of the PU 41, the switch 55 is switched to supply power to the motor 56, and the motor 56 runs the film 49.

In this recording apparatus, the recording of the audio data and the recording of the burn-up recording signal or the display pattern are switched by switching the switch 45 as described above. Therefore, it can be used as a recording device for recording audio data when the burn-up test is not performed.

Here, a film reproducing apparatus for reproducing a movie film in which audio data is recorded by the above recording apparatus will be described.

The film reproducing apparatus has a structure in which a conventional projector is equipped with a film signal reader for reading audio data recorded in a digital sound track.

As shown in FIG. 6, for example, this film reproducing apparatus includes a projector 62 for reproducing the image recorded on the film 60, a film signal reader 63 for reading the audio data recorded on the film 60, and an audio data. A reproduction signal processor 64 for reproducing the sound from the.

Then, the projector 62 projects the image recorded on the film 60 onto the screen 61. Further, the film signal reader 63 reads the audio data recorded on the digital audio track of the film 60 and supplies it to the reproduction signal processor 64. The reproduction signal processor 64 reproduces an audio signal from the supplied audio data and drives the speaker 65 to reproduce the audio.

Specifically, the film signal reader 63
For example, as shown in FIG. 7, the CCD 63a that reads the audio data recorded on the digital sound track of the film 60 and outputs it as an electric signal, and the CC 63a
And a film signal reading unit 63b for outputting the electric signal from D63a as audio data.

Further, the reproduction signal processor 64 of the film reproducing apparatus, as shown in FIG. 7, described above, has a sync detecting section 71 for detecting sync information from the audio data and an ECC decoder 72 for carrying out error correction reverse encoding. And a voice processing unit 73 for performing processing such as decompression of compressed data, and D
A / A converter 74 is provided.

Then, the synchronization detecting section 71 detects the synchronization information from the output of the film signal reading section 63b, extracts audio data, and supplies it to the ECC decoder 72.
Further, the ECC decoder 72 performs error correction reverse encoding on the output of the synchronization detection unit 71 and supplies it to the voice processing unit 73.
Further, the voicing processing unit 73 performs processing such as data expansion on the output of the ECC decoder 72 and supplies the output to the D / A converter 74. Further, the D / A converter 74 converts the output of the voice processing unit 73 into an analog signal and outputs it as a voice signal.

The present invention is not limited to the above-described embodiment. For example, in the above-mentioned embodiment, the display recording area is provided behind the signal recording area for recording the burn-up test signal, and the display pattern is recorded. However, the display pattern may be recorded by providing a display recording area behind or before and after the signal recording area.

Further, in the above embodiment, the CPU 41
Control the LED drive units 47s and 47p in common by
Although the same burn-up test signal and the same display pattern are recorded on the two digital sound tracks 4 of the movie film 1, the CPU 41 controls the LED drive unit 47.
Independently controlling s and 47p, two digital sound tracks 4 formed along the running direction of the motion picture film 1 are provided with burn-up test signals having different light emission states and a display showing the light emission state. The pattern may be recorded. As a result, the light emission state of the recording light source corresponding to the burn-up test signals recorded in the two digital sound tracks 4 is displayed in the display pattern 7 in the display recording area 6.
Movie film 1 that can be easily confirmed by the difference in the recording status
Can be created.

[0050]

As is apparent from the above description, in the motion picture film recording apparatus according to the present invention, the control means controls the recording means to change the light emission state of the recording light source on the digital sound track. By recording the display test signal, and by recording a display pattern indicating the light emitting state of the recording light source in the display recording area provided in front of, behind, or in front of the area in which the baking test signal is recorded,
It is possible to create a motion picture film in which the light emission state of the recording light source corresponding to the burn-up test signal recorded on the digital sound track can be easily confirmed from the recording state of the display pattern, and the developing conditions can be easily measured. it can.

Further, in the motion picture film recording apparatus according to the present invention, by the recording means, the burn-up degree obtained by changing the light emission state of the recording light source is recorded on the two digital sound tracks formed along the running direction of the motion picture film. By recording a test signal and a display pattern indicating the light emission state of the recording light source, the light emission state of the recording light source corresponding to the burn-up test signals recorded on the two digital sound tracks can be changed to the recording state of the display pattern. A motion picture film that can be easily confirmed by the difference can be created, and the development conditions can be easily measured.

[Brief description of drawings]

FIG. 1 is a diagram showing a recording format of a movie film recorded by a movie film recording apparatus according to the present invention.

FIG. 2 is a diagram showing an example of a burn-up test signal recorded on the motion picture film.

FIG. 3 is a block diagram showing a configuration of a film sound recording device for recording the motion picture film.

FIG. 4 is a block diagram showing a configuration of a movie film recording apparatus to which the present invention has been applied.

FIG. 5 is a block diagram showing a specific configuration of the recording apparatus.

FIG. 6 is a block diagram showing a configuration of a film reproducing apparatus for reproducing a motion picture film recorded by the motion picture film recording apparatus according to the present invention.

FIG. 7 is a block diagram showing a specific configuration of a reproduction signal processor that constitutes the film reproducing apparatus.

[Explanation of Codes] 1 Movie Film 2 Image Recording Area 3 Perforation Section 4 Digital Sound Track 5a, 5b Signal Recording Area 6a, 6b Display Recording Area 7a, 7b Display Pattern 8 Measured Section 21 Voice Encoding Processing Section 22 ECC Encoder 23 Synchronization information addition unit 24 CPU 25 Character data import unit 26 Character data addition unit 27 Switch 28 Control unit 29 Film writing unit 30 LED 31 Film 41 CPU 42 ROM 43 RAM 44 DMA unit 45 switch 46 Serial / parallel converter 47 LED Drive unit 48 LED 49 film

Continued Front Page (72) Inventor Jeffrey E. Taylor United States California Carver City, West Washington Boulevard 10202 Sony Pictures Entertainment Company (72) Inventor Tadao Fujita 6-735 Kitashinagawa, Shinagawa-ku, Tokyo Sony Corporation

Claims (3)

[Claims] 1. A motion picture film recording apparatus for recording audio data on a digital sound track formed along a running direction of a motion picture film, wherein a test signal generating means for generating a burn-in test signal and a visible display pattern. A recording having a display pattern generating means for generating a display light source and a recording light source, and switching the display pattern generated by the display pattern generating means or the burn-up test signal generated by the test signal generating means to record on a digital sound track. Means, a light emission control means for changing the light emission state of the recording light source, and a control means for controlling the operation of the light emission control means and for controlling the switching of the recording means. The burn-up test signal that changes the light emission state of the light source is recorded, and the burn-up test signal is also recorded. A recording device for a motion picture film, characterized in that a display pattern indicating the light emitting state of the recording light source is recorded in a display recording region provided in front of and / or behind the region. 2. The motion picture film recording apparatus according to claim 1, wherein the display pattern generated by the display pattern generating means is a display pattern indicating the light amount of the recording light source. 3. A recording degree test signal obtained by changing the light emission state of the recording light source and two light emission states of the recording light source on two digital sound tracks formed by the recording means along the running direction of the motion picture film. 2. The motion picture film recording apparatus according to claim 1, wherein a display pattern indicating is recorded.