JPS60137189A - Transmission system for video information - Google Patents

Abstract

PURPOSE:To obtain real-time video information and prevent trouble due to misoperation by receiving information from a sensor and utilizing only necessary information selectively. CONSTITUTION:Pieces information from racecourses 3-8, and 22-25 at respective places are collected to centers 1 and 2, and processed and edited optionally to transmit various kinds of information to positions 9-21, and 26-32 inside and outside the racecourses through leased lines for ITV. The switching and control at the respective positions 9-21, and 26-32 are all controlled remotely from the centers 1 and 2. Consequently, information is sent from racecourses at respective places is sent on real-time basis.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a video information transmission system and a video information transmission system that can selectively transmit image information created by concentrating and editing information from a plurality of information sources to a plurality of information usage terminals. This invention relates to a video information transmission system that transmits image information via an ITV transmission line.

The video information transmission system of the present invention can be used for a variety of purposes, including the following: Off-track pari-mutuel betting ticket sales offices (hereinafter referred to as "off-track") located in each region.

), we will explain a network system that provides video information of racetracks in each region in real time.

Conventionally, necessary information is often transmitted to fans outside the stadium in the form of audio, so that they can listen to the data necessary for purchasing voting tickets and the live commentary of the race through speakers. However, live broadcasting using audio does not provide a sufficient sense of realism. In addition, you can find out the running horses, jockeys, and horse types for each race from horse racing newspapers, but in order to actually purchase a voting ticket, you need to know the odds information (expected dividend payout multiple) of the running horses, the weather conditions ( It is desirable to know data on (weather and track conditions), cancellations of races, jockey changes, competition results, and refunds.

Otsuzu information is the most referenced information for fans when purchasing voting tickets, but it changes from moment to moment until just before voting for single-win, multiple-win, and consecutive-win types (・It is desirable to provide data in real time. In audio broadcasting, it is difficult to provide such a large amount of data in real time as desired by a large number of fans.

Next, there is a method of using a bulletin board in addition to voice information, but this method also has the problem that it is difficult and time-consuming to record a large amount of data from time to time, and the information may be inaccurate. . Radio broadcasts cover many races in the metropolitan area, but not all races.

Some races that are broadcast on television provide video information using a receiver having a cathode ray tube of about 20 inches. However, such television broadcasts
For example, only famous horse races such as the 4 major races or 10 major races are held, and even within these races, only a limited number of races are broadcast. Furthermore, the content of the broadcast mainly focuses on the atmosphere inside the venue, pre-race buttocks, and live coverage of the race, and does not provide sufficient data necessary for voting.

In particular, there are few broadcasts of Otsuzu information. At each racetrack, a method is used in which video signals captured by ITV cameras are transmitted via coaxial cables and displayed on monitors at voting ticket sales locations in places where races cannot be directly viewed. , so-called CGTV (Closed
C1rcuit '1-evision) provides a service that creates a sense of realism.

In order to provide this type of video information service to off-track races throughout the country, it is necessary to construct a long-distance video information transmission system that connects each racetrack and each off-track sales floor. On the other hand, transmission lines for purposes other than long-distance broadcasting must rely on lines provided by Nippon Telegraph and Telephone Public Corporation, but this has a distance #1 limitation, so only local and small-scale networks can use it. It was in a state where it could not be assembled. However,
In a small-scale system, the number of fans that can be mobilized is commensurate with the high equipment costs and operating costs.System 414
could not be built. However, recently, C has been able to receive long-distance video signal transmission service from LI Telegraph and Telephone Service, and the conditions have been met in this regard.

On the other hand, the ITV transmission line provided by the Telecommunications Corporation had problems in completely transmitting text information, as will be explained later, and a new 41:1i system was required. Furthermore, the Otsuzu information screen is a list of many characters, but on such a screen, there is a problem in that vertical thin lines are difficult to display in color.

Therefore, the first objective of the present invention is to construct the most effective video information transmission system by connecting each racetrack and each off-track ticket office that exist in various places.

A second object of the present invention is to provide a method for reliably and effectively transmitting character information in order to construct the above system.

There are 108 racecourses in Hokkaido and 20 off-track races run by the nationally organized horse racing association, with races held on 104 days a year and a maximum of three races per day. When dividing the country into Kanto and Kansai, the maximum number of racetracks held per day is two, so we divide the country into two blocks, Kanto and Kansai, and set up a center in each block to collect the necessary information from each racetrack and process and edit it. However, it is preferable to use a system that sends the information outside each venue and inside and outside the venue. The information handled generally includes race commentary, horse data for each race, weather conditions, race locations, cancellations of races, jockey changes, competition results, refunds, and odds information, and is preferably in color.

Hereinafter, an example of a system configuration will be described in which the system is of this scale and centers are provided in two blocks, one in Kanto and one in Kansai.

Between each center and the racecourse, outside the racetrack, and inside and outside the racetrack, the video is transmitted via a dedicated line of Telephone Corporation's ITV, and the 8 voices are transmitted via a dedicated telephone line.

Video information is provided from each racecourse (in addition to live commentary of the race,
The situation of the buttock, the situation in the venue, the horse's body type information, etc.
Take a '#R image with the V camera and send it to the center as a Nl5C Buno-style signal. Any other information will be sent by phone or fax. The center d3 accepts video and audio information from each racecourse in its own block and from other blocks (Kanto is from Kansai, Kansai is from Kanto), adds text information to it, and sends it outside each racetrack and inside and outside the racetrack. It has a similar structure to that of a broadcasting station. The sending signals are two systems U-■ for the own block, one system W for the other blocks, and three systems for correction. The various parts that make up the system are: video signal @ and audio signal input section, video signal 1; It can be roughly divided into an out-of-field transmission control section that presets the transmission destination, and a monitor section. The input section has processing circuits for three systems, U, V, and W.
1” R and frame memory.Each VF
R is connected to each system's VTR&5 and frame memory, so that video signals of any system can be dubbed.

The video signal 1jJ changer is installed for the three systems U, V, and W, each of which can be used for live video, horse body still image, and V.
The desired video is created by switching or mixing the input of one-character still images under the control of a computer. At this point, the input signals are driven by separate synchronization signals, and cannot be switched or mixed as they are, so they are synchronized with the center synchronization signal by a frame synchronizer. Horse shape information is sent as NTSC numbers, but this is temporarily stored in frame memory and output as a one-frame still image.

Text and still images are created using a personal computer for weather conditions, racetracks, race cancellations, jockey changes, and competition results that do not require calculations, and still images that are calculated using a post computer for refund J3 and Otsuzu information that require calculations. Create. - The video signal of this still image is only a black and white luminance signal. The sending unit is a circuit that creates a combination of screens to be sent out, and the above 1. The transmission category of each piece of information c is input from the keyboard, and the address code is attached and transmitted. The address code also includes information on the remaining time for the voting deadline. All of the above controls are performed by a computer.

The out-of-field transmission control section has an operation panel that can preset the above-mentioned transmission information, and is controlled by a computer. The monitor part has seven monitors, and the video signal is extracted from the outgoing signal and displayed on the monitor using the same method as the terminal station.

At each off-field and inside-outside receiving terminal station, a signal addressed to the station is selected based on the horn dress code of the signal sent from the center, and displayed on each monitor. At this time, the live commentary of the race and the horse's shape can be displayed as is because they are in the NTSC system, but as will be explained later, the text information lacks color information (-), so color information is added and converted to an NTSC signal. Project.

Hereinafter, a detailed explanation will be given using the drawings.

Figure 1 is a comprehensive system diagram. 1 and 2 are off-track centers in Kanto and Kansai, 3-8 and 9-21 are racecourses and off-tracks belonging to the Kanto block,
22-25 and 26-32 are racecourses and off-tracks belonging to the Kansai block. Information is sent from the center to each outside track and inside and outside the track, and information is sent from the racecourse to the center.

There are signals that go back and forth to the racecourse, but the signals from the center are for the inside and outside of the racecourse.
Since the C signal is sent from the center with an address for each outside field or each inside and outside field, it is the same as Fjl being directly connected to the center.

FIG. 2 is an explanatory diagram of the screens displayed outside each venue. There are four screens, A, B, C, and D, and the A side shows information other than the horse race, live race commentary, horse shape, weather conditions, race cancellations, jockey changes, competition results, and refunds. Page 8 displays information on the three races designated as the main races.

Since only the main race is sent from other blocks, this information will only be displayed on page 8. 0
On this page, you will be able to vote from now on, and the Otsuzu of the J: Udori deadline race will be displayed along with the Otsuzu postings for 11.1 minutes. The 0th page is
Displays A° Watsuzu news for races other than pages 8 and 0.

Figure 3 is a system diagram of the rental equipment. 33 is a jack board, and the audio signal output jack for the video from the racetrack and the audio signal output to each outside race track, and the 3 internal input circuits. Connect with the badge code.35-1~35-!+ is video person Kashi A. Tsuta,
3G-1 to 36-5 are voice input nonoji 17 ivy, 37-1
~37-5 is an audio output jack. Reference numeral 34 is a jack for a dead signal, to which a color bar generator or standard signal generator can be connected. Reference numerals 38a3 and 39 are jacks for video and audio for other blocks.

The input section is set up for each system.
41-3 is a V-"R" for recording input video signals.
, 42-1 to 42-3 are frame memories used to record necessary screens in the input video signal and output them as one frame of still images. It is used for projection. 40-1 to 40-3 are input signals of the own system and V T Rt of the own system and other systems.
It is a switch that switches V1-R and frame memory. Reference numerals 43-1 to 43-3 are control panels incorporating the above-mentioned switching device and controlling the VTR and frame memory. Figure 4 is a diagram of the switching button, for example V
TR-U's INPUT 5ELECT@LIVE-tJ
If so, the video signal and audio signal of the own system or V-1-R4
1-1a3 and f')'-mumemo') -43-1 d supply c! Rel. V l” R-U and this is VTR41-1
The reproduced signal of VTR 41-2 is dubbed to the frame memory 43-1, and if it is a VTR-V, the reproduced signal of VTR 41-2 becomes Vl.
- Dubbed to R41-1 and frame memory 42-1. MEMORY C0NT is used when freezing a required screen. 44-1 to 44-3 are V l
- R output is mixed with the output of a character generator to be described later - Riru mixi, 45-1 to 45-3 are input video signal monitors
46-1 to 46-3 are frame memory monitors, 4
7-1 to 41-3 are monitors for mixers 44-1 to 44-3. 48 supplies the video to other blocks and 7! f This is a voice signal switch that switches between the human input signal J3 of the U, V', and W 3 systems and the VTR output horn signal.

As explained previously, weather conditions, race cancellations, jockey changes,
Data on competition results is created by a personal computer; 0 is the computer itself, 61 is the keyboard, 62 is the printer, 63 is the floppy disk, and 64 is the display. Create the format of these data lists in advance, enter what you know in advance, store it on a floppy disk, and then call up the required screen to modify the data when you need to add or delete data. All you have to do is go.

Reference numeral 65 denotes a buffer memory, which has a capacity for three screens corresponding to the three systems U, V, and W. Since reading is performed by the TV skin 11 in response to a reference synchronization signal within the renter, it will not interfere with subsequent processing. 6G, 67.68 is a monitor for the three screens mentioned above. Refunds are generated by general purpose host computer 70 and interface 72
．． It is stored in the buffer memory 90 through 79.80, and can be retrieved one after another by TV scan when necessary.

This readout is performed by the reference synchronization signal in the center, similar to the buffer memory 65.

49-1 to 49-3 are video signal switchers that switch the live screen of the race mentioned above, the horse's body, weather conditions, race cancellation, jockey change, competition results, refund money, and each video or still image of the VTR. , V, and W systems are selected and divided into C combinations. FIG. 5 is a diagram of the operation panel of the sending console used for this switching, and information about pressing the push button switch is sent out. The switch labeled 1 and other blocks J is the video switch 48 described above. This switching is all done by the minicomputer 1.
1 automatically via the interface 79, 82 and switch controller 95. The input synchronization signals applied to this video switching device are U, V, W systems,
Personal computers, minicomputers, and small computers: - Since each computer is different, it is not possible to create a new video signal by changing IJ to IJ. Therefore, a known frame synchronizer 50 is used to match the reference synchronization signal within the center. The video signals of each of the selected systems can be observed on monitors 100, 101, and 102. 52 is a synchronizing signal generator for supplying a reference quantity]'lJ signal, and 53 is a test signal generator for performing various tests.

The video signals created for each system are sent out together with the information created by the above-mentioned host computer 70 using address signals for each outside and inside hot springs. In this example, the data created by the existing Otsuzu information creation system was used for the Otsuzu information, so the explanation of this Otsuzu information creation system is omitted, but the process of Otsuzu information creation is extremely important in terms of system configuration. This is an important element. FIG. 6 is a diagram of an outside transmission control panel 99 that selects video signals to be sent to each outside J5 and each inside and outside of the hall. The push-button switches at the venue are coded for each racetrack, and the part on the top with the name written on it is removable, and the part for that day's venue can be inserted into it.

The race number push button switch has three stages: red for the main race, orange for the normal race, and no ignition for OFF. To explain the case illustrated in FIG. 6, the venue is Tokyo Racecourse and Fukushima Racecourse in the own block, and the Kyoto Racecourse is the venue in other blocks. For each outside racetrack, racetracks with high priority are placed in the U system, so for the inside and outside of Fukushima Racecourse, Fukushima is placed in the U system. By pressing the race number button, the race designated as the main race is displayed on 8 screens. Races for which submissions are accepted (deadline races) will be displayed on the C screen by the computer, and all other races will be displayed on the UD video screen. Of the video signals to be sent out, as explained earlier, the live race is a continuous signal, but all other signals are one frame signals. One frame of signals is written into a frame memory on the receiving side and read out as a continuous signal, as will be described later. Ots information is written to the buffer 1 memory 94 via the interfaces 72, 79, 81, read out in the TV scan by the Hinter reference synchronization signal and applied to the switching transmitter. Otsuzu information and refund information sent to other blocks can be sent to other blocks.
C is sent out via the interface 73. For races with deadlines, the display time of the aggregated odds information as well as the odds information is shown on the C screen, and the remaining time until the deadline is separately displayed, but these times are created by the minicomputer 71. A timer 51 is connected to the minicomputer 71 and is used to measure the above-mentioned time.

The video signals separated into each outdoor area or indoor/outdoor area are sent to an address signal generator/mixer 104 to generate an address signal, which is then inserted into a vertical blanking period and transmitted. By adding the "address" code, each station outside and inside the station can selectively receive only the video signal assigned to its own station. Possible insertion positions are 10 to 21) (although in this example, positions 15, 17, 191) are possible.
-1 I Ll d3.

Figure 9 shows the structure of the address code. When 4 bits are used as synchronization pits and different address codes are inserted into the above 15, 16 and 17H, 2 bits are used to distinguish between which period the code was inserted. -2 bits, U and V, for controlling deletion of one screen, etc.

4 bits to select each monitor of A, B, C, D screen of W3 system, screen displayed on each monitor above (live race, horse shape, weather condition, race cancellation, jockey change, competition) 4 bits to select results, payouts, single-win type and multi-win type odds, consecutive winning type combination type odds), 6 bits for each door to select outside the field or inside and outside the field, 6 bits 1 for remaining time.
~ (1 bit 1~ is for U/V system selection, 5 bits 1~ is for time setting), 1 bit is allocated as parity. In addition to erasing unnecessary screens, screen controls include switching between win-win, double-win, and consecutive-win odds screens displayed on the same screen during video transmission. The monitor part is divided into a waveform monitor part and an output monitor part. In a part of the waveform monitor, a switch 105 switches the signals sent to the U, V, and W3 systems, and the block block, as well as the output information.
It can be monitored by a video monitor 106, a waveform monitor 107, and a vectorscope 108. A portion of the output monitor displays B, C, and D screens on seven monitors to each of the three video signal lines U, V, and W branched from the output terminal by a switch 109. Since 3 lines are not sent to the screen at 11111, 1 a (111) is sufficient, and the B, transmission screen is sent to U, V, and 2 lines (3 lines each at 1).
(112, 113, 114, 115, 116, 117
) A total of 7 units are used.

74 is a hard disk, 75 is a floppy disk, 7
Reference numeral 6 denotes a printer, 77 a display, and 78 a keyboard, which are used to record and print out each video input information, output information, and output information, and to add and control images and information as necessary.

Next, the handling of the character information screen will be explained.

Here, it is assumed that the character information screen includes all information that can be expressed in binary terms, such as symbols or drawings, rather than characters (). In this embodiment, the race live screen and the horse body type screen are signals based on the N 1” S C system.
All other information is on the text information screen r. For this character information, only the black and white luminance signal is transmitted during the video information transmission period, and the color signal is transmitted by encoding only the screen pattern and inserting it into the vertical blanking period, and the receiving side receives the luminance signal. Process by setting a certain threshold for
A method is used in which a color signal having a pattern specified by the above code is added to the color signal and displayed as an NTSC video signal. The first method that adopted this method
The reason for this is to prevent typographical errors caused by code mistakes. As is well known, there are pattern transmission methods and code transmission methods for text broadcasting, which transmits one video and inserts digital information within the vertical blanking period. Although the pattern transmission method is reliable, it requires time for transmission, and the code method has a high probability that the displayed characters themselves will be incorrect. The text information in the present invention requires a high degree of reliability, and it is undesirable to take a long time to display one screen, so neither method is suitable, and analog I decided to transmit it to. The second reason is that when using the above-mentioned ITV dedicated line J3, which uses intra-frame differential code tanning technology, in the case of images with large changes in brightness, such as characters, the signal level and color ( This is because the i'i is unstable and causes flickering and the coloring is not fixed.Such phenomena occur in videos where the brightness changes slowly and there are many thin vertical lines. This is unlikely and is not noticeable because it is averaged between frames, but in the case of text screens, there is a high probability that flickering will occur.On the other hand, text information is binary information, so set the value to an appropriate level, If you slice at this level, it will prevent flickering due to level fluctuations. di 3
The reason for this is to reliably transmit the J error information.

There are thin vertical lines on the text screen. This line becomes thinner as the number of characters increases because the characters become smaller. The Otsuzu screen according to the present invention needs to display 40 characters horizontally, but if each character is composed of 8 dots and the character spacing is 2 dots, one scanning line will be 400 dots, and the thinnest line will be 1 On the other hand, the color subcarrier corresponds to 3
．． Since it is 58M1lz, the effective horizontal scanning period is 189
The cycle is 0.47 cycles, and the thinnest line is 0.47 cycles. Since at least one cycle is required for reliable phase detection, the information necessary for color development cannot be obtained in the case of thin lines. For text screens that send a large number of characters, N
Complete color development cannot be obtained with a composite signal such as the TSC method. When an ITV dedicated line is used, the conditions become even worse because the transmission characteristics of the thin vertical line portion deteriorate. In order to deal with this problem, J3 of the present invention focuses on the fact that character screens are easy to pattern with binary information, divides each character information screen into several patterns, and encodes these patterns to create only the code. This code is inserted into the vertical blanking period for transmission, and the J3 on the receiving side restores the above code, reads the pattern from the pattern memory in which the pattern is recorded, and adds a color signal. be. Such a video signal transmission system will be described in detail later. In the transmission of the above code, in order to avoid errors, the same code is transmitted three times and the majority OR is taken.
There is. Note that when changing the coloring of one screen to two colors, the ground color and the text color, there is no need to transmit this load, and the receiving side can set the U'H level and L level to the predetermined colors (
Just add the M number.

Next, we will explain about each facility outside the venue, inside and outside the venue.

Ru. FIG. 7 is a system diagram showing an overview of the equipment, in which the video signal from the renter is distributed to each circuit by a VDA (video signal distributor) 120. A frame memory 121 is used in conjunction with the TD/VL device 122 to record a horse-shaped screen and output it as a still image. TD/
The VE device will be described later. 122 is TD for A screen
/VE is used to display the live race screen, weather conditions, race cancellations, jockey changes, competition results, and refunds. 123 is for 8 screens of U system, 124 is for C picture commercial, 12
5 is the TD/VE for the 0 screen, 126 is the TD/VE for the 8 screens of the V system, 127 is the C screen, and 128 is the TD/VE for the 0 screen. Reference numeral 129 is a switch for the monitor 130, through which the human input signal and the screen of the U, system name monitor can be observed. Reference numerals 131 to 139 are VDAs whose outputs are connected to the terminal monitor. A3 on the terminal is A.

The monitors for sides B, C, and D and the remaining time meter are in one set, and this combination can be made into smaller sets if necessary.

In FIG. 7, numbers 140 to 159 indicate the four combinations described above. Distribution of video signals using the VDA described above requires laying cables for each monitor, and the monitors themselves are expensive, so if there are many monitors and the installation locations are far apart, construction costs will increase. It is also inconvenient to handle. In this case, C can be replaced by a method using a carrier wave. That is, a well-known television signal generator is used to create a 9-tunnel television wave using each video signal as a modulated wave, and it is transmitted so that it can be handled in the same way as normal television radio wave reception.

In this way, the transmission line requires only one coaxial cable, which simplifies construction, and the monitor can be an inexpensive regular television receiver. In addition, in this example, a cathode ray tube of about 20 inches was used as a monitor, but in places where many fans gather, 1. By using a large screen projector,
It is possible to further increase the effect of heightening the sense of reality.

Figure 8 shows T[) / V E (7elcvisoin
[) acodcr&V1deo Encod
er) is a system diagram of the device. The video signal input from the terminal 160 is separated from the address signal described above by the address separation circuit 161, and then sent to the address decoder 1.
The address signal is restored by 62 and applied to each code's decoder. This address decoder has 6 inputs and operates to output an output only when it receives a human power signal addressed to its own station.
It is a continuous signal of SC, and is output as is through the internal circuit of TD/vE. This operation is performed by switching the switch 174 using the control signal restored by the control decoder 166. If the input signal is of a horse shape, the frame memory is controlled by the control signal output from the terminal 176, and is temporarily stored in the frame memory 121, switched by the switch 174, and output as a continuous signal.
Ru. The input signal indicates weather conditions, race cancellation, jockey change, etc.
When it comes to competition results and payouts, it is a black and white screen with only one frame of luminance signal. This signal is applied to a comparator 167, sliced by a certain threshold (111) and converted into a binary signal for the reasons explained earlier, and then written to a memory 168.
The readout and address controller 170 outputs the readout signal, and the readout signal becomes a television scan continuous signal.

The read video signal is subjected to selection of three primary colors R, G, and B by a gate 172, converted to an NTSO signal by an NTSC driver 173, and then sent to a switch 17.
4 and is output from terminal 178. R,G.

The selection of B is performed by controlling the pattern memory 165 in which the code for each screen read by the address decoder 162 and the display pattern for each screen is written by the address controller 170, and by outputting the pattern memory. In this embodiment, the RGB signals are converted to N-cho SC signals, but if the monitor uses an RGB system, the RGB signals may be output as they are. At this time, as explained above, even a fine line in the vertical direction can be sufficiently colored. The data of the remaining time of the deadline race is written to the address on the C screen /υ,
This time is restored by a time decoder 163, amplified by a driver 164, and outputted from a terminal 175. The input synchronization signal J: and color burst signal are passed through the circuit 180 to the C minute II (S-). 181 is the APC (
It is a 14.3MHz oscillator whose phase is locked to the input color burst signal, and its output is applied to the synchronization signal generator 182 to generate various synchronization signals, color burst signals, and block signals. A ranking signal etc. is generated and distributed to each circuit.

The horizontal synchronization signal is applied to a clock generator 169 whose output is applied to a preprocessing circuit 167 and an address control circuit 170 to determine the timing of screen preprocessing and writing.

As explained above, in this embodiment, in J3, the RGB signal is converted to the N-1-S C signal and the valve is placed on the monitor. This is because three transmission lines would be required and the scale of the construction would be large, and it would also be possible to use an inexpensive television receiver as it is, since it can be used as a monitor.On the other hand, as mentioned earlier, However, by converting RGB signals to NTS'C signals, some of the color signals are completely transmitted, but NTSC
The degree of deterioration is less than when the signal is transmitted from the center as it is. When a TD/VE device and a monitor can be installed in close proximity to each other, such as in a video conference, using an RGB monitor can provide a screen with complete color development down to the thin vertical lines.

Figure 9 shows the arrangement of various control codes inserted into one line of the vertical blanking period of the video signal sent from the center on the transmitting side to the outside on the receiving side, as shown below. Contains control codes.

Synchronization code Bit for synchronization of two control codes.

Line code: A code indicating in which line during the vertical blanking period the control code is inserted. In this embodiment, it indicates that the control code is inserted in three lines 15, 17, and 19.

Erase code: Avoid erasing the screen: ”-de.

Monitor code: A code that specifies the monitor installed outside each venue.

Item code: A code for specifying horse body type, weather conditions, race cancellation, jockey change, competition results, and refund amount.Item code includes pattern codes for coloring items other than horse body type.

Local code: A code that specifies the recipient's off-site location.

Timer code: U/V code that identifies whether it is a U or V system, and a retime code that indicates the remaining time.

In addition to the above control, a parity code is also added to reduce the transmission error in case of a transmission error.Such a control code is repeatedly transmitted three times during three predetermined lines of the vertical blanking period. .

Next, the above-mentioned color video information transmission system will be explained. In the present invention, the color image projection screen is divided into several sections S+ to S, as shown in FIGS.
Prepare several numbers 1 to P4. For example, in FIG. 10A, the screen is divided into five sections 81 to S5, and section S
For example, images in category S1 are displayed in red, images in category S2 are displayed in blue, images in category S3 are displayed in green, images in category S4 are displayed in white, and images in category S5 are displayed in white. Specify that the image will be displayed in purple. In this case, it is also possible to specify the background color for each category. In this way, the division in stroke 1n1,
Prepare a large number of patterns specifying the color of each category.i15
<. When transmitting, only the luminance signal is transmitted, and a code specifying a pattern is transmitted during the vertical blanking period.

On the receiving side, a pattern memory 165 (see FIG. 8) in which a pattern as shown in FIG. 10 is stored in advance is arranged.
The pattern code transmitted during the vertical blanking period is extracted, and the designated pattern is read out based on this. If this designated pattern is, for example, the pattern shown in FIG.

Similarly, the image signals in sections 5zJ5 and S3 are respectively B.
The image signal in section S4 is commonly supplied to the R, G and B input terminals, and the image signal in section S
The image signal in 5 controls gate 172 so that it is supplied to the R and 8 input terminals. If other intermediate colors are not to be displayed, the gate 172 may be configured so that the signals are supplied to the R, G, and B input terminals at predetermined ratios. In this way, for example, it is possible to display characters in the segment S1 in red.In this case, since the image signal (is transmitted as a luminance signal), for example, a vertical line consisting of 1 dot 1 is also clearly displayed. It can be projected on the screen.

Generally, in the case of moving images, there is no need to color thin lines due to human nature, but in the case of transmitting still images, the transmission system of the present invention has a large For example, it is possible to use the ITV transmission line of the Telecommunications Corporation to transmit color images with little movement, such as in video conferences.

As described above, according to the present invention, it is only necessary to specify the type of pattern on the transmitting side, and the color specification can be easily and efficiently performed. In one horizontal scanning period, more than 10 times as much information can be carried in one horizontal scanning period, rather than about 29 bits as in this embodiment, as is well known, so even more -C specifications can be carried on the transmitting side. Is possible. Therefore, as shown in FIG. 10, it is possible to designate the colors of the sections constituting one screen on the transmitting side. Furthermore, it is also possible to easily designate the color of each part of the pattern or each character pattern from the transmitting side.

As described above, according to the present invention, information on racecourses in various places is collected at a center, this information is arbitrarily processed and edited, and
Various types of information can be transmitted extremely effectively to each outside of the venue, inside and outside the venue, using dedicated lines for ITV. Switching and control between each outside venue and inside and outside the venue is performed by remote control from the rebate center, which not only allows for unmanned operation, but also prevents troubles caused by operator errors and increases system reliability. I can do it. In addition, when transmitting text information, only the fidelity information is transmitted during the video information period, and the J3 on the receiving side sets a certain threshold value and shapes the waveform to eliminate screen flickering and color information. Information is encoded on each screen and 111 times during the vertical blanking period.
Complete color video information can be easily transmitted by transmitting the information to multiple people and reading out the screen pattern designated by the above code from memory on the receiving side. In addition, if you create an RG B signal based on this color information and display it on an RGB monitor, you can obtain the correct color even for thin vertical lines and obtain a high-quality image. 1. This text information transmission method is applicable not only to racetrack d3 II information transmission, but also to CATV.
It can be effectively used in other character information transmission. In addition, the center and terminal equipment of this system are
Competition J, 1. ;When transmitting information other than the venue, color video information of moving images, still images, and still images containing text information can be transmitted regardless of the size of the system, the amount of information handled, or the method of processing. 'v When transmitting over a private line, the purpose can be achieved with a simple configuration by adopting similar system configurations and devices.

[Brief explanation of the drawing]

Figure 1 is a system diagram, Figure 2 is a diagram of the monitor outside the venue, Figure 3 is a diagram of the center system, Figure 4 is an explanatory diagram of the VTR control panel, Figure 5 is an explanatory diagram of the sending panel, and M6 diagram. is an explanatory diagram of the O1L board for off-site delivery system, Fig. 7 is a system diagram for off-site or inside/off-site, and Fig. 8 is T D / V
FIG. 9 is a diagram showing the structure of the control code, and FIGS. 10A to 10D are diagrams showing some examples of color designation patterns. 1... Kanto off-track center 2... Kansai off-track center 3-8, 22-25... racecourse 9-21. 23-32... off-track. 33...Jack board 34...Destination I foot 35
-1 to 35-5...Video input terminals 36-1 to 36-5
...Audio input terminals 37-1 to 31-5...Audio output terminal 38...Video output terminal 39 to other blocks...
Audio output terminals 40-1 to 40-3 to other blocks...
Input signal switch 41-1 to 41-3...VTR 42-1 to 42-3...Frame memory 43-1 to
43-3...VTR and frame memory controller 44-1~44-3...Mixer 45-1~45-3.46-1~46-3.47-1~
47-3...Monitor 48...Video switching device for other blocks 49-1 to 49
-3...Video signal switch 50-1 to 50-3...Frame sync 1jnizer 51...Timer 52.
...Synchronization 3 generator 53...Death signal generator 60...PC 61...PC keyboard 6
2...Printer 63...Floppy disk 6
4...Display 65...Buffer 7 Memory 6
6-68... Monitor 70... Post computer 71... Mini computer turf 2.73... Interface 74... Hard disk 15... Floppy disk 76... Printer 77... Display 7
8...Keyboard 79-85...Interface 90...Buffer 7 memory 91-93...Monitor 94...Buff memory 95.96...Switch controller 97...Address controller 98 . . . Switch controller 99 . 107... Waveform monitor 10
8...Vector scope 109...Output monitor switch 110...TD/VE device 111-117...Monitor 120...VDA I21...Frame memory 122-128...TD / VE cleavage 129
...Monitor switch 130...Monitor 131-137...VDΔ1
38.139...Remaining time meter 140-143.150
~153.145~148,155~158...Monitor 144.154.149,159...Remaining time total 1
60... Video input terminal 161... Address separation circuit 162... Address decoder 163... Time decoder 164... Driver 165... Pattern memory 166... Control decoder 167... Comparator 168 ...Frame memory 169...Clock generator 110...Writing/reading and address controller 171...
...Switcher 172...Goo 1-173...N 1
'SC encoder 174...switcher 175~
179...Terminal 180...Synchronized color burst separation circuit 181...A I) C genlock oscillator 182
...Synchronization signal generator 183...RG [3 output terminals Patent applicant Ikegami Tsushinki Co., Ltd.

Claims (1)

[Claims] 1. A plurality of information sources that output images, text, or information that can be encoded, and a destination as a moving image or a color or black and white still image created by concentrating and processing and editing the information from these information sources. A video information transmission system consisting of a separate transmission center and a plurality of information usage terminals that receive information from this center and selectively use only the necessary information. 2. The video information transmission system according to claim 1, wherein the address code of the destination is written within the vertical blanking period so that the information can be selectively received by the plurality of information utilization terminals. 3. Only the brightness signal of color binary image information that can be converted into characters or symbols is transmitted during the scanning period, and on the receiving side, the screen on which information is not to be displayed is divided into several areas, and a predetermined color is assigned to each area. A plurality of specified patterns are prepared, a code representing a predetermined pattern among them is inserted into a vertical blanking period and transmitted, and the receiving side reads out the pattern from the pattern memory using the code and converts the image represented by the luminance signal. , a video information transmission system characterized in that images are displayed in colors specified by this pattern.