JPS62272749A - Still picture transmission equipment - Google Patents

Abstract

PURPOSE:To generate a caption, to facilitate editing and to uniformize characters by storing a caption generated by a caption generator such as a hand-held computer in an internal memory as a caption signal separately from a picture signal and sending picture information and caption information simultaneously. CONSTITUTION:When a caption sending command is received, a CPU 56 gives a command to be sent to a caption generating device 200 via a communication circuit 201. In receiving the command, the caption generator 200 sends the generated caption to the CPU 56 via the communication circuit 201 as a character code such as ASKII code. In receiving such a character code, the CPU 56 extracts the font of the character in matching with the character code from a character generator 202 and writes the result on a caption area of a frame memory 52. Thus, the caption is generated and edited in the same feeling for handling a conventional word processor and the caption is written always by the uniform character.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention stores an image signal and caption No. 13 for a still image in a memory and then transmits the image signal, and on the receiving side, the received image signal and caption signal are transmitted. The present invention relates to a still image transmitting device that temporarily stores images in a memory and then displays them on a monitor.

[Conventional technology] An example of a conventional device of this type is shown in FIG.

In this device, an existing original image such as a photograph is wrapped around a transmission drum l as a still image, and next to the original image is wrapped a piece of paper with a heading or explanatory text for the original image, that is, a caption, written on it. This transmission drum 1 is connected to the motor 28
It is rotated by

A signal obtained by dividing the signal from the crystal oscillator 6 by a frequency divider 26 is supplied to a motor driving section 27 that drives the motor 28 . The carrier wave from the carrier wave oscillator 7 is modulated by the rotational phase signal detected by the phase sensor 4 in the modulator 5 . The modulated wave is amplified by the image signal amplification section 10 and sent to the transmission line 11.

At this time, the signal sent to the transmission line 11 is also guided to the monitor amplifier 12 to operate the monitor speaker 13.

On the receiving side, on the other hand, this modulated signal is guided to a GC (automatic gain adjustment) section 23, where the output level is adjusted, and a phase detection section 24 at the next stage performs phase detection.

The phase detection output is supplied to the phase synchronization section 25, the frequency divider 26 is reset by the obtained synchronization signal, and the rotational phase of the motor 28 of the reception section is then matched with that of the transmission side via the drive section 27.

Next, the photoelectric conversion unit 3 on the transmitting side is moved to the whitest part of the image, and the modulation unit 8 modulates the carrier wave using the photoelectric conversion signal obtained at that point. is amplified by the image signal amplifying section 10 and sent to the transmission line 11.
Send to.

When the receiving side receives this signal, it uses ALS (automatic signal processing) to detect and correct the attenuation characteristics of the transmission path.
The amplification degree of the A15 section 14 is set to a predetermined value by the level sensing) section 14, the ALS control section 15, the level comparison section 17, etc., and the amplification degree of the A15 section 14 is set to a predetermined value. Gain control is performed to maintain the level.

Next, on the transmitting side, the photoelectric converter 3 is moved sequentially every time the transmitting drum 1 rotates, aligning the photoelectric converter 3 with the first reading part of the original photograph, and generates an electric signal corresponding to the image obtained. The modulated signal is supplied to the modulation unit 8, and the modulated signal taken out from the modulation unit 8 is amplified by the image signal amplification unit lO and transmitted to the transmission line 1.
Send it to 1.

On the receiving side, when receiving this signal from the transmitting side, A1
The level adjustment is performed by the fifth section 14, and the level-adjusted signal is supplied to the demodulation section 20 via the image amplitude amplification section 18 and the remodulation section 19, and is demodulated by the demodulation section 20.

This demodulated signal is non-linearly amplified by a gamma correction unit 21 in order to match the characteristics of the recording medium, and then sent to a recording amplification unit 21.
It is amplified by 2.

This amplified signal is then led to the electro-optical converter 30, where an image corresponding to this amplified signal is recorded on a film on the receiving drum 29.

In the case of transmitting a color image, a color separation filter is arranged in front of the photoelectric conversion unit 3, and for example, cyan, magenta,
A signal corresponding to each color component of yellow is extracted and transmitted.

The receiving side receives the signals sent for each color component, and records the received signals on a film on the receiving drum 29 as an image for each color component.

In order to obtain a single color photograph, it is necessary to print by overlapping the films on which images of each color obtained as described above are recorded.

Therefore, in such a frame-sequential transmission system, it is not possible to directly and immediately evaluate the transmitted color image.

Therefore, in order to solve this problem of immediacy, a transmitting/receiving device as shown in FIG. 3 has been considered.

In the transmission section shown in FIG. 3, image information input manually from a camera or scanner is color-separated into red, green, and blue by an image input section 50, and analog signals R, G, and B of each color component are generated.
is output as

The analog signals R, G, and B are digitized by the /D converter 51 at sampling signal intervals from the sampling pulse generating circuit 51', and stored in the frame memory 52 for each color information. The contents of this frame memory 52 are always supplied at the video rate to a D/^ converter 53 for D/A conversion, and the converted analog signal is supplied to a monitor 54.

On the other hand, from the transmitter, prior to transmitting the image data stored in the frame memory 52, signals AND as shown in FIG. 4 are sequentially created and transmitted.

Here, the signal A is a reference signal used by the ^LS control section 65 on the receiving side to set the amplification degree of the A13 section 65', and the amplification degree of the A15 section 65' is once set by this signal A. This level is then held until the transmission of one image data is completed.

Signal B is a phase matching signal for phase synchronization, and this signal is used to match the phases of the transmission synchronization signal generator 60' on the transmitting side and the reception synchronization signal generator 66 on the receiver 8 side. Once the phase is aligned, one photo is transmitted.

Further, signal C is a black and white or black and white signal indicating the start of video data, and is transmitted for a certain period of time.

D is an image data signal.

The timing of generation and transmission of each of these signals A-D is controlled by cpusa.

Then, the CPU 56 reads data for each color from the frame memory 52 via the interface 55 and performs predetermined arithmetic processing. The processed data is converted into an analog signal by a 0/^ converter 57 in accordance with a timing signal from a transmission synchronization signal generator 60.

This analogized signal is supplied to the modulator 58, where the AM-modulated signal is amplified by the next image signal amplifier 59, resulting in a form like the signal shown in FIG. is further sent out to the transmission line 62.

At this time, a part of the output of the image signal amplifier 59 is guided to the monitor amplifier 60 to drive the speaker 61.
A speaker 61 monitors the transmitted data sound.

On the other hand, in the receiving section, when a transmitted wave as shown in FIG. and then supplied to the CPU 64.

When the CPU 64 determines that it has received the start signal C, the CPU 64 sequentially writes the subsequent image data D onto the memory 68 via the interface 67.

Then, this method is implemented for each color information, and the contents stored in the memory 68 for each color information are D at the video rate.
The signal is supplied to a /^ converter 69 and subjected to D/^ conversion, and the converted analog signal is supplied to a monitor 70. Therefore, the screen position of each color on the screen can be adjusted with high precision, and no color shift occurs.

Further, when the CPU 64 turns on the switch 73, the conventional device 74 becomes operational, so that printing plates can be created while watching the monitor 70.

In this case, in order to maintain compatibility with a conventional still image transmitting/receiving device, such as a photo transmitting device, the storage capacity of the memory 68 is set to a value as close as possible to the number of pixels of the conventional photo transmitting device.

However, when an image is input using a normal camera, scanner, etc., the number of pixels of the input image is smaller than the number of pixels of a conventional photo transmission device.

Therefore, if this type of transmitting/receiving device is made compatible with a conventional photo transmission device, the storage capacity of the memory 68 will increase in horizontal size by the amount of captions in the conventional photo transmission device, as shown in the figure. When transmitting and receiving images and captions with a transmission device, is the storage capacity of this memory 68 fully effective?When receiving images and captions with this type of transmitting/receiving device, there is no means for inputting them into the caption section, and such captions are Only memory 68
storage capacity was wasted.

Therefore, in consideration of the above points, in order to be compatible with conventional still image transmitting and receiving devices and to be able to immediately evaluate the received color image, the caption is stored in an area separate from the image in the image memory. A still image transmitting device has been proposed that is capable of transmitting and receiving a caption signal in correspondence with an image signal.

An example of a still image transmitting device equipped with a caption reader as described above is shown in FIG. 5, for example.

In the figure, parts similar to those in FIG. 2 or 3 are denoted by the same reference numerals, and their explanations are omitted. In the transmitting section shown in FIG. This is the input section. Reference numeral 100 is a caption reader that inputs a caption in the form of an explanatory text about the still image using a scanner or the like and outputs an analog signal.

+01 is a manual switching circuit that selects and outputs either one of the image signals output from the image input section 50, such as analog signals R, G, and B, or the analog signal output from the caption reader 100.

51 is an A/D converter, and this ^/D converter 51 receives analog signals R, G, 8 from the image input section 50 selected by the manual switching circuit 101 or analog signals 48 from the caption reader 100. signal from the sampling generator circuit 51' at the interval of the sampling signal.
The ^/D-converted color information is written into the frame memory 52.

The frame memory 52 consists of memories for each of 83 colors, R, G, and each color memory has an area for storing output signals from the image input unit 50 and a caption reader 1.
It is configured by arranging an area for accumulating output signals from 00.

53 inputs the signal read from the frame memory 52 to D.
/8 and supplies the converted signal to the monitor 54 for transmission.

56 reads the image data of the frame memory 52 for each color via the interface 55 and performs predetermined arithmetic processing, and receives the analog signals R, 56 from the image input section 50;
A central processing unit (central processing unit) that controls the input switching device +01 that switches between G, B and analog signals from the caption reader 100 in accordance with the switch 102, and changes the address of the storage area of the frame memory 52 in accordance with the human input signal. cpu).

57 is a D/A converter that converts the data processed by the CPO 56, for example, in accordance with the timing signal from the synchronizing signal generator 60'.

A modulator 58 performs AM modulation or FM modulation on the output signal from the D/A converter 57 to obtain a predetermined modulated wave output.

The output signal from this modulator 58 is amplified by an image signal amplifier 59 and sent to a transmission line 62.

Further, 60 is a monitor amplifier, which amplifies the output of the amplifier 5g and supplies it to a speaker 61 for monitoring.

Next, the configuration of the receiving section will be explained.

65' is A for detecting and correcting line attenuation characteristics.
This is an LS (automatic level sensing) section, and the degree of amplification is set by the LS control section 65 as described later, and this level is maintained until transmission of one piece of still image information is completed.

61, the transmission wave sent from the transmitting section is sent to the ALS section 65'
When it is manually powered through, it is an image amplitude amplifier that amplifies it.

A demodulator 62 demodulates the original color signal, and the signal demodulated by the demodulator 62 is converted into D/D by an A/D converter 1i3 and supplied to a processing unit (CPU) 64. The CPU 64 controls the LS control section 65, reception synchronization signal generator 66, switch 73, interface 67, etc. as described later.

68 is a memory into which the CPU 64 writes the received and demodulated color signal at a predetermined timing.

This color signal is composed of individual areas including an image area and a caption area, and the storage address of the memory is selected by the CPU 64 according to the switch 103.
written.

A D/A converter 69 converts the R, G, and B color signals read from the memory 68 into a D/A converter and supplies the converted signals to the receiving monitor 70.

Further, in this example, in order to create a printing plate while viewing the printer 70, the switch 73 is turned on by the CPU 64, so that the conventional receiving device 74 can be used.

Next, an example of the operation of this example will be explained.

First, image information of a still image input from a camera or scanner is input by the image input unit 50 into red.

The signal is separated into green and blue, output as an analog signal, and input to the manual switching circuit +01.

On the other hand, the caption information manually generated from the scanner is
It is output as an analog signal by the caption reader 100 and input to the input switching circuit 101.

The analog signal from the image input unit 50 input to the manual switching circuit 101 and the analog signal manually input from the caption reader 100 can be switched to either one by switching the manual switching circuit 101 using the CpH 56 depending on the state of the switch 102. The analog signal of is selected and sent to the ^/D converter 51.

The analog signal selected by the manual switching circuit 101 is digitized by the /D converter 51 at sampling signal intervals from the sampling pulse generating circuit 51'.

The CPU 5B selects and stores the digitized data in an image area of the frame memory 52 for each color information in the case of still image information, depending on the state of the switch 102.

On the other hand, in the case of caption information, the caption area of the frame memory 52 is selected and stored.

The contents of this frame memory 52 are always supplied at the video rate to a D/8 converter 53 for D/A conversion, and the converted analog signal is supplied to a monitor 54.

Therefore, by selecting a metric area, a still image and a caption explaining the still image can be viewed in correspondence with each other.

Further, by turning on the switch 73 using the CPυ64, the conventional device 74 becomes operational, so that printing plates can be made while watching the monitor 70.

However, in such a configuration, characters written by each person are transmitted and received as captions, and the form of the characters differs from person to person. This has the disadvantage that the captions are difficult to read.

Furthermore, when editing, the captions had to be erased or added to on the paper on which they were written, making the editing process extremely complicated. In addition, caption readers require a scanner or the like to read characters as images, and have the drawback of being large-scale devices that are not very effective.

[Problems to be Solved by the Invention] Therefore, in view of the above-mentioned points, an object of the present invention is to transmit and receive captions in uniform characters without any difference between individuals, and further,
To provide a still image transmitting device which allows editing to be performed extremely easily, and which is compact and capable of manually creating captions at low cost.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an image input unit for inputting still images, and a first memory unit for storing image signals from the image input unit. and means for communicating with an external caption creation device that creates a caption regarding the still image;
The present invention is characterized in that it comprises second memory means for storing data as No. 8, and means for correlating the image signal and the caption signal read from the first and second memory means with each other and transmitting them.

[Function] The present invention has a function capable of communicating with an external computer as a caption generation device, such as a hand belt computer, and sends the caption created on the hand belt computer to the still image transmitting device of the present invention, and transmits the still image. A character generator in the transmitting device stores the caption as a caption signal in the form of caption characters in an internal memory separately from the image signal, and transmits the image information and the caption information simultaneously. In the receiving section,
In this way, image information and caption information sent from the outside are simultaneously received.

As described above, in the present invention, captions can be easily created, edited, and filed by using an external caption creation device such as a hand belt computer. Moreover, by using a character generator, uniform characters can be obtained and high quality captions can be sent and received along with the image.

[Example] Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of the invention. Of the transmitting section and receiving section in this embodiment, the parts corresponding to those in FIG. 5 are given the same reference numerals.

In FIG. 1, 200 is an external caption creation device such as a hand belt computer. A communication circuit 201 sends and receives communication commands and caption character codes from the caption creation device 200. 202 is a character generator that outputs a character pattern that matches the character code of the caption. 2
03 is a caption selection switch that instructs to display a caption image on the monitor 54.

By providing functions such as delete, insert, and filing, the caption creation device 200 can create character codes for captions in the same way as a normal word processor or the like.

When transmitting the created caption, first, a command to transmit the caption is transmitted to the CPO 56 via the communication circuit 201. When the CPU 56 receives the caption transmission command, it enters a state where it accepts caption data, and provides a transmittable command to the caption creation device 200 via the communication circuit 201.

In this state, after receiving the command, the caption creation device 200 sends the created caption to the CPII 56 via the communication circuit 201, for example, as a character code such as an ASCII code.

After receiving the character code, the 61 mouth 56 takes out a character form matching the character code from the character generator 202 and writes it into the caption area of the frame memory 52.

When checking the caption on the monitor 54, the caption image selection switch 102 is activated, and the activated state is detected by the CPU 56.

The operation at the time of reception is the same as that of the conventional receiver described above, so a description thereof will be omitted here.

As described above, in the embodiment of the present invention shown in FIG. 1, caption data is received from the caption creation device 200 in the form of a character code via the communication circuit 201. By predetermining a control code, it is also possible to remotely control the still image transmitting device of the present invention from the caption creation device 200.

Alternatively, communication between the caption creation device 200 and the communication circuit 201 can be performed in the form of a wireless remote control, for example by using an infrared remote control device. In this case, it is of course possible to create a caption wirelessly from a considerable distance and send the caption to the still image transmitting device of the present invention, and also to remotely control the still image transmitting device of the present invention. .

[Effects of the Invention] As explained above, according to the present invention, since the external caption creation device, for example, a handheld computer, is used, captions can be created with the same ease as when using a normal word processor. You can edit it, and you can also file it.

Moreover, since the character pattern to be displayed is generated by a character generator, captions can always be written in uniform characters, and therefore easy-to-read captions can be provided no matter who writes them.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is a block diagram showing an example of the configuration of a conventional transceiver, and Fig. 3 is an example of a color transceiver using a conventional modem transmission system. FIG. 4 is a signal waveform diagram showing an example of the transmission waveform, and FIG. 5 is a block diagram showing a prior example of a still image transmitting/receiving device. 50... Image input section, 51.63...^10 converter 62.68... R, G, B memory, 53.57.6
9... D/8 converter 54.70... Monitor, 55.67... Interface, 56.84... CPU, 58... Modulator, 59... Image signal amplifier, 60 '... Transmission synchronization I8 total generator 65'... ALS section, 61... Image amplitude amplifier, 63... Demodulator 65... ALS control section. 66...Reception synchronization signal generator, 100...Caption reader, +01...Manual switching circuit, 102.103...Image caption selection switch, 200...Caption creation device, 201...Communication circuit , 202...Character generator, 203...Caption selection switch. 11 Showa 62-272749 (8) Iris Jutsu 8 Kuchi g, C'J Hanpu Roku Tokukai] Showa 62-272749 (10)

Claims (1)

[Scope of Claims] An image input unit that inputs an image regarding a still image, a first memory means that stores an image signal from the image input unit, and an external caption creation device that creates a caption regarding the still image. a second memory means for storing the caption received from the communication means as a caption signal in the form of a corresponding caption character; and a second memory means for storing the image signal and the caption signal read from the first and second memory means with each other. 1. A still image transmitting device comprising: means for transmitting a still image in association with each other.