NL8200047A - METHOD FOR DISPLAYING A PARTICULAR FULL IMAGE AT A DISTANCE AND DEVICE FOR APPLYING THIS METHOD - Google Patents

Description

η ί VO 2629

Betr .: Procedure for displaying. a certain complete picture at a distance and device for applying this method.

The invention relates to a visual service using the full facilities of a television communication channel on an intermittent basis.

Assistance in an essentially continuous process is known, in which auxiliary information is provided during only a small portion of the duration of each frame of a television set. This occurs more particularly in the vertical scan flyback interval.

This service can only occupy a limited area of the television picture, such as a subtitle print line,

Torch is known to provide a single television image frame or a successive series of frames to provide a pictorial reproduction of an output source.

An example is the well-known still image grid of a tele- • football soccer broadcast to determine whether or not the ball has been touched by hand;

A variation of the above is found when reproducing from hundred to several hundred frames to show an important period of time in a game.

20 These activities take place in the broadcasting station under the direction of the program leader. It is not possible for an individual observer to choose what he wishes to see.

The invention provides a service for the individual transmission and reception of one or more video signal frames in television. speed. During such transmission, full video bandwidth and all other facilities of the video and synchronization channel are used. These grids can be periodically successively transferred in a "salvo1". This may occur during a short break in the main television program service, ...

30 which is incidentally continuous. It is also possible to assign a channel to "salvo transfer,

The pictorial matter of the "salvo" grids normally has no connection with other matter or with a television service. The grids can be displayed in color if the television system; 35 is capable of this. One can also use cable television facilities (8 ~ 47 ~ - »t - 2 - ').

A user (observer) at his receiver chooses which grating or grids to choose from (what he observes) (ie specified). This choice is transferred to a central broadcast station, in which the desired equipment is stored or for request is displayed, In general, there are a number of observers who make choices at an arbitrary time. These choices are preferably collated into a single burst of weeks, which are determined on an empirically determined basis. "10." is transferred over an interval of possibly a fraction of a minute to a few minutes. "."

The salvo can be done over any communication channel with a video bandwidth and in any relationship, to any other video material, such as.

«I.

in a multi-use cable or satellite system.

15 "are transferred. · ·

, The video burst sequence will be in the recipient of. any user who ..X

, -; use the service., 'stored. Any observer can - · j:. ~: • v:> r 'then reproduce all choices until he has the choice "which he" has.

V specifies, reproduces, aided by a "table of contents" displayed initially. One can also use an encoding -f "," 1 - -. * * * "- -" j; "" ju * · with automatic code selectors only the choice made by a user at his receiver is specified.

The received material is stored for observation at any time, the invention will be further explained below with reference to the drawing. 1 shows a block diagram of the central equipment in the transmitter; Fig. 2 is a block diagram of the central controller, which is part of the central equipment; - "30" FIG. 3 is a block diagram of the user equipment in the receiving station. . FIG. X is a block diagram of the local controller, which is a part; of the user equipment; Fig. 5A is a flow chart for the microprocessor of the central controller; the foreground program; 35. fig · 5S the same "for the background program; and . FIG. 6 is a flow chart for the microprocessor of the local ref-ager. - -. ; ·, *. - · -V * \.

-! ^. 8’2 0 0 0 4 7! ~. . . , - ---------------— '...... - # * _ __ __ _ _ "____________ .. _____ - -., -., III 1., I -, II -. I, - /,. 1 - 3 -

In Fig. 1, 1 is the central controller, a device shown in detail in Fig. 2. As the name implies, this device controls the various other devices in the transmitter.

..A request for a particular frame service comes from a user 5 and is electrically transferred to the central controller. This can be done via an input channel 2, such as a telephone line. The user can use a "normal" push-button telephone.

More specifically, a request is accompanied by the identification -10 '. approval number of the user. This number is used to identify a request when it is being processed electronically, and is also used to obtain a degree of security to prevent unauthorized use.

- In a simple form. the request shall also include a number of 15 'pair of digits, which in some way identifies the specific pictorial matter, /:. .11 4 - · which must be presented determines., "For example an image of. der / • '.ll-v ·' / ;. eruption of the: volcano Mfc. St .. leiens. This number becomes more at-at-4.

J;. Without made available to the user by a printed catalog. of availability, or video transmission over it. system, when a .··! -1120 'more general number, corresponding to the desired matter, is introduced by the user. That is, that from the general catagory the. v * * * ....

certain catagory and then a certain choice is announced.

The user directs a request to one or more specific, complete images.

The desired information in video form is normally present in the transmitter station in more than one video signal display. These "may consist of a number of video tape reproducing devices 3, 5, 5, n, which are all connected to the central controller by a set of conductors 6". in order to be able to control the display devices by the central controller, while a further set of conductors 7 is present to selectively supply the video output signal from the display devices to the central controller for a final transfer to the user.

Each display is individually influenced by a suitable code number known to contain the searched frame.

35 and thereafter further influences the display setting on the determined data; "Sought to rinse the raster, which is then produced by the central controller as a video signal for a subsequent supply,"

4 V.

* »^ Accepted.

In a typical operation, "consecutive requests are received by the central controller" and "one" or more displays are sequentially operated to provide the requested imagery.

The video signals, each corresponding to each requested single frame, are immediately passed to a tape editing device 8. These frames are recorded sequentially and contiguously on the tape for providing lift material of a subsequent "" salvo "10". of individual grids cm to meet one or more requests. The tape mounting age consists of a video recording display.

The control of this can position one video frame directly next to another, i.e. "in1", lute "is effected by the central controller 1 via a suitable control conductor. The members 1 - 8 form a video signal of one or more frames representing the particular image. . A second "audio" channel of the tape mounting device 8 is connected to the central controller .1. This channel provides a timecode control. . ·. ·. "·; · '; for .letting indexing of the corresponding video material .. ^ - ·; '· "' · '· -'.» · ** · · - ·: · '* \\ The transmitting equipment accepts the "salvo" video signal-, dat-nar · '· "' ..-. 20 'has been constructed to reflect the user's choices, ... 1 made, and continues to carry the signal through a transmission channel ·

The broadcasting equipment forms a broadband communication channel. • The equipment may consist of a known television channel, such as this one. for television broadcasts, cable television, satellite broadcasts or. 25 beam radio wave relay systems are used, where the video signal of the particular desired image is processed by the user at video speed, ”Wide Band” may be subject to wide variation, but • • .- · '··! -. • • • normal frequency band from a few Hz to ^ 5 MHz is common, .-! · - · ./·-. '· -. - with a wider or narrower band by a factor of 50%' acceptable.

. 30. In this case, according to the invention, a correct operation is in any case obtained. The width of the tape determines the way the images are

- - detailed, /. J

In Fig. Λ, the control / status line 10 connects "the central controller" to the transmitter equipment, more in particular for the purpose of such con- nection; "35. -Transmitting the transmission equipment so that it can receive the" salvo ", ·" · .. [··· "· *:

. ~ when the right time for the transfer occurs. "I.

Fig. 2 gives details of the central controller 1. This is shown as the dotted line. 82 00 04 7,:> ’’ ΐί * ^ 5 ts. Certain other parts of Fig. 1 have also been shown to be exhaustive;

The microprocessor IV provides "in a general scheme according to a" software n "program which has been prepared for this purpose and which is indicated in the form of flow charts in FIG. More specifically, the microprocessor consists of a general purpose IC calculator, such as the Intel · 8085.

A line 15 'connects the microprocessor to the various other units within the' dotted area in the chain according to 'fig. 2, The • 10 '. more specifically, it includes eight information lines, sixteen address lines and a few more lines for control, n.1. read, register and temper. - -

A read-only memory 16 (ROM), which may consist of an Intel '2716, provides a boot strap service to the micro-15 processor I to enable it to issue a set of commands .or -.:;/-.] · ....; to give the "floppy-disc" Controller 17 *. This "unit obtains, then-.

. ", ** run to .program * contained in the registered program bodies, - -" 'v =; "j t the disc 18. which disc is more specifically a magnetic j.

;; > recording medium is * "4 ^ .." - .. · .. · r · ..

• ·· '“20. This program is then controlled by the microprocessor.

V. '*' I '. Stored in a freely accessible memory (RAM] 19 *. The RAM 19 may be a semiconductor memory, which has a re-registration capability and is freely accessible; the RAM may consist of the Mostek MK kl 16, which for a system of 82 2, it provides 32,788 bytes.

•: "25. It is now possible to start running the program, which contains not only the operational program for the microprocessor 1V, but also a cross-reference and ent -information between catalog dial numbers and band and raster numbers, which are associated with them, - v and also cross-reference reference information between the band neuramer and · 30 the numbers of the display devices. the disk 18 and supplied to the RAM 19 '.

Ir organs are provided to communicate with the user n.1. the telephone coupler 2Θ, the lower part of which is capable. information and. control, such as a ring detector circuit, · 35. a "hook switch" relay, a line termination transformer, and a key. - detector circuit. · ".

• .—: The information includes "occurrence of arousal" or "no place:. ; ·; "• i find alarms", "recordings · 1 phone microphone, or not., Etc, independent. Some of the numbers are "received" by keys and, if so, which numbers are, Other functions include "recording telephony", answering a wake-up signal, and at the end of 5 conversing with a user going back to "imposed telemicrophone". The above information comes in and passes the information / control coupling device 21. It includes normal digital integration. chains (MST1 of medium size, organized in the usual micro-processor mode, for address decoding, device '10' selection, a 'gate operation with' three states to supply certain information to the line 15 ', and flip-flops to to store selected information from the "line" These elements may include the Texas Instruments, "Xnc." 7 ^ LS 2 ^ 0, TivLSBO, 7to3S, and 7 ^ LS259.

The gates have three states; a normal, binary "high" and • 15 '. binary "low" and a full open-chain state. As a result, it is possible that a large number of these gates can be converted to line 15:! connected .. "· '·; r:':" -. -. \

If · a gate is in the open-chain state, λλ -: it does not load the line and therefore does not interfere with the operation of the · "·;: ·· - · '! .20: line. is in the active state, it explains.

On the line either a high or low state. The chain structure corresponds to that of the well-known line with multiple connections from telephony. Each three-state port has an enable function and connection. An address decoder decodes the determined address 25 for that three-state port. When this address only occurs, the three-state gate is brought into the active state and then it transfers to the bus the state associated with this gate. \ -: · input. Belongs. t

A speech synthesis device 22 exemplifies part 3 of the means for communicating with the user. This device receives information from the microprocessor regarding voice messages to be returned by the service user:. and put. this information to include input sounds sent to the user. Typical speech sounds' answer a call from a '· 35' user; give a prompt e to dr age when making choices, ·: correct the user when mistakes are made, inform the _ .user "when" his choice (ü ^ T 'will (> will) be transferred to him - - 82 0 0 0 4 7 · 'Φ i τ- ^ go and leave' page number (slan his choice, '' conclude the phone call 'and take measures for hanging Tan the counting. Microphone he the end Tan the' message. This' device may be a Texas Instruments, Ine.

TMS520Q be speech synthesizer processor. .

5 Yerder teaches in Fig. 2 the time ^ ny day clock 23 timely information used in formulation, warn a "salvo" ** orerdraehf may occur. The clock may consist of a single digitally operating picture plus a few MST device dials. These can be obtained from the National Semiconductor Corporation. This clock is 10. With the line 15. "More specifically, is a piezo crystal, such as a crystal operating at 32 KHz. just connected the clock to a%. "Provide time standard for clock operation.

The control * and status panel 24 still bare that an operator is making an initial setting and therefore • 15 '. a subsequent check and subsequent change, if necessary. The panel 24 is connected via an input / output panel 25 to the line: · - ·> '15-. This provides an addressable gate link function, connection to, the line. This coupling device corresponds to the telephone information / control coupling device 21. described above. The chains; '· ’·» · - ·' · 20 '' are the same, but the address code is different .. '..

In the bottom left corner of Fig. 2, multiple sources of certain images are the number of video displays shown in Fig. 1 at 3? '4, 5, ··· n are indicated. The device It / 0 »input-output - units are in any case indicated to connect the video displays 25 to line 15.

1a, FIG. 2 shows the spring-type tape recording device (VTR ') 3' together with the device input / output (1/4 unit 26).

· "-" as an example of the multiple sources and associated I / O units, which are more fully depicted in Figure 1.

A known time code output signal is supplied from the 7TE 3 through the connection 27 to the I / O 26 to provide the microprocessor 14 with address information. The I / O 26 corresponds to the previously rewritten coupling device 21, except that the device is additionally -. f equipped with known code readout chains and provisions for the transfer of information from these chains to the line '15 when it is' selected: ''. -: • -: A further output signal from the VTR 3 is applied through a conductor 29: --8 to the video switching and 7T code introduction unit 30 on its way to finally being displaced. Unit 30 includes signed VI code introdection chains and signed video route switching circuits.

The unit 31 corresponds to the coupling device 21.

These two additional chains accept information which is supplied via the line 15 by the microprocessor 1¼ when the addresses for this interface are present.

• The display VTR unit 4 and the current associated I / O are indicated by a dotted line in FIG. This unit and the others follow the • circuits for 7131 3 and provide output signals for the switching unit 30. Ia the unit 30 extracts the correct video signal from the various; display VTRs under the control of the microprocessor. 1¾ discharged via the shift control device and 7I code information coupling unit 31. ·

In this way, the determined code provided by the microprocessor 15 is introduced into the vertical (synchronization) interval 71. showing horizontal scan lines for this information and indi— .. ·.

. - are chosen individually for each of the selected (multiple frames). .

~~ /; ' · · This selected video signal is applied to the recorders. r; ; display device 7TR 8, see fig. 2 :. With unit 8, the · re ···: · ''. 20. Registration 7TR-0/32 connected which is further connected to line 15.

This input / output unit corresponds to I / O unit 26, except that the unit has a different address and a different digital control of the recording function.

The recording and reproducing device VTR (tape mounting device • 8) includes pre-recorded time code information and via the 1 / 0-. unit 32 causes control by the microprocessor 1 * that the /. : -7TR 8 positions the associated video tape so that the more in; in particular some unrelated grids · to be arranged adjacent to each other.

30 When a "salvo" of more specifically a number of grids is to be transferred after they have been mounted in unit 8, •. the video signals from the video tape thereof are reproduced and fed to the video transmission system 9. This is preferably done on one. empirically determined basis. I.e. ? that this may occur frequently every half hour or more or less depending on the requirements of the users or other reasons. · "F • - ·. The 1/0 33 is with the line 15 'and the unit 9, the latter over the 82 0 0 Ö 4 7 .. ·; ; - 9 ~

control conductor and status conductor 10 'connected. The final signal, which authorizes the transfer of the "salvo *", is supplied from the microprocessor 1V via the I / O 33

The transmission equipment 9 is "described with reference to FIG. 1. The I / O 33 is connected thereto by the conductor 10 and the line 15 for" control. This unit can correspond to unit 21, except that the unit has a different address.

Fig. 3 shows a block diagram of the equipment of the user, as it is located in a house, office or shop. - · - 10 The receiver Uo intercepts the incoming, transferred sig

naal. Depending on the nature of the channel, the receiver may consist of a television receiver, if the signal is broadcast by a television channel, a power amplifier, if the signal comes in via a video cable, a satellite receiver, if 15 'the signal comes from a satellite or a beam relay receiver, "·", if the signal is "related .. - ·". * I

; The video cassette recorder reproducing device 11 forms a means for storing one or a few frames of the video signal after its transmission. This device is preferably a device with. 20 high quality, of which Panasonic, RCA and Sony are currently examples'; to be.

In this case, the receiver 40 is connected to the video cassette recording reproducer to record the entire "burst" of incoming frames. - 25 The use of the system is introduced by reference to a catalog of available information. In an extensive system, the range of available information is very wide. The catalog is made available as a printed publication or may be presented to a user about system v when using a simple index number, such as 001. Similar index numbers may be used for a number of general topics, so that the user is not flooded with availability.

The telephone b2 in Fig. 3 is of the usual key type, as provided by the local telephone company, and is normally a telephone line connected. This enables the user to make his request known to the central equipment of the system. A normal telephone call to that facility takes place.> A? 0 ö 0 4 7 '~ ··.. · -;. · - 10 - ψ *

When invited by the speech synthesis unit 22 in the central station, the user selects the frames which he wishes to observe. The central controller 1 determines when the burst transmission containing its selections will be broadcast and which page numbers will be its selections therein.

5 The central controller processes all requests and has information about how many requests are still available for a particular user. The controller is programmed to estimate how large the time interval is that one can expect before the request of a particular user in the tape mounting device> 8 according to FIG.

10 1 will be mounted. . . - -r · -

If it is assumed that a burst transmission takes place every half hour, if the next burst transmission is to take place in ten minutes and the user's selections can be mounted in seven minutes, the device 22 will be commanded to .15 inform the user that his burst transmission will be in ten minutes /; . take place. Conversely, ', indièa "(fequéueSyan other requests and the -e {- time required to fulfill the user's request. J." _ J'. Requires twelve minutes or more, device 22 will notify the user ,: '.;; that the desired burst will occur in forty minutes. ·. [· ·· _ Q: · -, -.:20' Ha to be 'informed - the user will enter the time of the bursts and' the pages of his choice in his local controller · 1 * 3 in.n

One can also. proceed in such a way that the user presses one button, the time of the burst and the pages of the selection are fed electronically directly from the telephone line to the local controller. The speech device 22 can then be eliminated or supplemented by a simple code, which can be accepted directly by the locale -f controller. -, w: -. * - ·

Once the "salvo" has been received, it will be recorded on a video tape in the ·! cassette unit 1 * 1 stored. At any time thereafter, the user can select his / her choice (s) by simply activating the local controller 1 * 3.

. This turns on the cassette unit J + 1 in the reproduction mode, whereby the one frame with video speed is displayed a number of times; to give. The frame occurs in the television display hh, which is a television display tube with associated scanning chains.

35 ': The video signal being reproduced is outputted from the cassette unit 1 * 1 and supplied to the local controller in order to obtain the 71-code information. "- required by the user specified page j I i - · ·, _; _ ·. .........; ..... J. 820 0 0 4 7 / Λ: -. /. '_______ _______ ..... ... ...... ---. _. . · «? % 4 ** »_ - '11 - (s) to locate, extract. It is also possible to suppress the TV screen for all other pages that may be present in the salvo. Furthermore, the page number in one corner of the video image can be introduced by energizing known members, which may be part of the local controller. Such an introduction is desirable if the user prefers to examine all pages in the salvo.

The local controller automatically or manually brings the cassette- '· 5 · ^? unit in the still grid mode for continuous observation of; 10; a chosen grid or any grid by allowing manual dominance. ".;

Fig. You show a block diagram of the local controller portion of the user's device. The main function of the local re-; However, locating a particular page of selected video information in the locally recorded Hsalvo transmission. The device corresponds to that of the central controller according to Hg. -.2, but it is simpler, because fewer and less interchangeable functions need to be fulfilled. V ^ J: ... ']?;; The microprocessor Vr, the line. , the HOM h9 and the RAM 50 correspond ·· 20 to these units in the central controller 1. ··. -! '

Due to the simpler operation, the entire control program is fixed and stored in the ROM memory kg. The RAM memory 50 can therefore be output smaller than before.

The microprocessor Vf can consist of an Intel 8085, the ROM k9 25 of an Intel 2716 and the RAM 50 of two Intel 21 ^ 2. ·. · "

The I / O 51 serves the same function as the unit 26, which; ^; - <- j has been previously described. The. unit 51 controls the video cassette recording device V1 for video playback purposes at the user's place. ; ' · - • 30 A relatively simple control / status panel 52 makes it the; user to perform ground functions, such as equipment "in", "" out ", making choices and initiating control functions.)

Panel I / O 53 connects panel 52 to line 58.!

This 1/0 panel performs the same function as the former unit 25. j. 35 The Yl code window reader 3k is bet through conductor 55; j 'display video signal from VCR recording display unit ^ 1- |' - lined. The reader 5 ^ interprets the vertical interval code l - u - '· ·' · - i * · -

- * "'" "........" | Ί · I

12 - from one or more scan lines which occur during the vertical blanking interval of the video signal.

The appropriate Society of Motion Picture and Television Engineers code (SMPTE Code) complies. Only one rule is used for this.

The reading device 5 ^ is also connected to the line k8. This allows the microprocessor 1 * 7 to take the V1 code information.

"*" which is needed for its program to locate the desired page.

The time-of-day clock b6 is connected to the line 1 * 8 .- ^ '' r 10 The video symbol generator '56 also receives the displayed video signal from the conductor 55. The page number from the vertical interval information is formulated in an under video signal applied to the TV display device bh of FIG. 3. This formulation is effected by conventional means using integrated j. :} - 15 chains that match or are the same as the National Semisonlucttg? MM581 + 0. Because of this, it is possible at one angle from t% '. ·.,.

; i; the television picture one by one. person to read page number in-V,. ; . to produce. . . · '..... . . -i '. - · V.

. Pig. 5A shows a flow chart for the microprocessor I. of the [- ‘r 20 central controller 1; the foreground program. Fig. 5B is the same * 'j * for the background program. ; - 'j

The microprocessor serves a number of tasks, i.e. a process. program, which simultaneously serves two functions. More specifically, this is accomplished by an interrupt routine which shifts between it; 25 partially processing one program, then shifting to the other program and processing a portion of it, then again to: the first program shifting to 'process a further portion of it' *: ·· '-! · ·', etc. - -: · /. '/ · v; The pre-program usually performs the main functions 30. - ..

In fig. 5A, the foreground program starts with "start" 6 (3, the initiation conditions. Then the function moves to the decision ^ i • · -: point 6l, "time for transfer". This is part of the transfer of a "salvo" of image frames according to the invention. The answer is sometimes • 35 "" yes ", but more often" no "If the answer is" no ", the second decision point 62 is" any requests? ". If there are no requests, the function returns to the beginning, as indicated by the arrows at the "no" line, going through this loop is j 0 0 4 7 '.

Ψ Q

i -13- i normal and takes place several times per sec. , »*

When the "Requests?" Answer is "yes", the requested video material from the ViER displays 1,2, ... n is located, and that material is displayed. This is the function of "locate! 5 and displaying the required video material "63.

Then this video is routed to the recording VTR 8 and a relevant vertical interval (VI) code is introduced. This is function 6k. , - - '/' "·? · * ·" "..

Subsequently, the requested frame ("the requested frames) is registered on the video hand in VTR 8 immediately after previous frames.

This is function 65 ·. I

Then the request list is decremented, i.e., it is removed; search, which has just been processed, will be removed from the list. This is · _ j function 66. Then the function returns to the beginning. "Time for i 15 transfer?" 61 and the process is repeated. i. f Less frequent than the request routine will be the "broadcast time" - j .. -. This "yes" activates function 67 ", which is equivalent to" back, "; winding manual recording device (7TR) to the beginning of the current one; burst series ". The function activity then moves to 68" displaying 20 video record for transfer, route signal to transmitter ".

• 'i - -. . I

The transmitter is made ready to accept and transmit the burst.

*

Thereafter, the function moves to 69 "position of the tape for the next burst and recording of video information". j .25 Hik salvo may be separated from another salvo by a blank; grid, although they can connect together. (>.

} *

A volley-filled tire can last for a long time. saved or the tape can be re-saved - used by the known erasing process. The background program according to Fig. 5B runs simultaneously with the foreground program described above. · J, This program has a starting point "start" T0 when the power] is "turned on". The function then moves to "control and status panel" 71, which is the unit 2h in FIG. This panel becomes.

35 sensed for the status of user-introduced regula- tions. ·; ·.

-. Thereafter, the function moves to decision point 72 "(is" there <- 1fc - · r a tone of tone? ". The" wake-up tone "is determined through a telephone retailer.

Usually, there will be no alarm tone, so that the function continues through the "no" loop back to another scan of the control panel 71; 5.

When the answer to "is there an alarm tone?" Is "yes", an | "" automatic answer chain "changes to the state with diminished tele-microphone. That is, a load cutout is applied to the telephone line, causing telephone chain stops ceasing This j · 10 'is function 73. · ·' · j

A voice then identifies that the "salvd service facility is the user is requested to introduce his requests; function 7 ^ + · This is because the user influences their telephone for: the numerical code of their choice (choices), despite the fact that he has already reached the originally called telephone number ^. ^; A computer program will verify that his request (s) is valid: ~ 1 (s). This is done in the "decision point 75" request, valid?" , · Λ | ' · ..; · .. j ·. - * If this is not the case, because there are too many digits in the | .

. , request present £ | i föf "" key figure is incorrect because this. is a digit for which no catalog number is present, an appropriate voice message, formulated by the central controller, will be output | by the unit 22 of FIG. 2, request correction of the request. This ! via the "no" function from point 75 to "request correction". 76. The function returns to the input of "request input"; 25 7 ^ ctm to receive the corrected input. ... "

If the request (s) is (are) valid, it will be accepted and a speaking message will ask the user; : gene, if there are further requests cm frames. This is the "yes" - [.

function from decision point 75 to decision point 77 ^ further | 30 requests? " If the answer is "yes" in point 77, the function! Returns to the input of "request input" 7 ^. -. F.

If no further requests from that user are present, j-.

does the function go via "no" from point 77 to "introducing queJje \ calculating and assigning time and pages" 78- This is done by the | 35 central controller, which also introduces the requested frames (requested frames "" "" / "to the recording VTR 8 in FIG. 2).

.- · Then a voice message over the phone line is sent to the. .

: 82 0 0 0 4 7; :: - 15—; f.

ί: User is given with respect to time and page (s) and a voice switch-off signal is given, after which the telephone line at the "burst facility" is returned to the state with imposed telephony microphone. This allows the phone to be ready for the next call. This is all done with the function 79 »after which the function returns to" scan panel "at T1 * The activity potential; for the microprocessor returns to the "start" state .; ;

Fig. 6 is a flow chart for the microprocessor kj of the local controller ^ 3. This is a single program flow chart.

"10 The program starts with" "starts" 81th introductory terms.

From there, the program transitions to "sensing the mode dial". gelaars "at 82, This function examines the positions of the switches, which are part of the control status panel 52; that determines. ^. · ·. i

what the user wants to do. ... '. J

J5 In this initial guideline, the function passes to the first ·. -Ί? ·· decision point 83, which asks "" is the controller in the register-] ;.

'Ί ·> ·; :. ; · Tiemode? ". If the answer is" no ", which is normal, '^' finds 1 ·· - · ^ 1. . a progress is made to the next decision point 8k, '. becomes true. j.

asked, "Is the controller (82) in the springing loop?". In the event that . j: 20; this answer is "no", the device is in idle mode. and the function returns to "start" with the controller 82 on—

"I

new is being scanned, etc. 1. i

When the user controls the controller 82 in, for example, the register; mode, the answer at 83 will be “yes.” Then j 25 passes the function to decision point 85 “it is time to register i.

2h generally the answer will be "no" and therefore the function will only circulate at point 85 around until it is time to register. * * * · · · ··. '·' ···· · ·

When the answer is "yes", 86 "affecting the video asset-30 recorder in the recording mode" is affected and a recording of an incoming "burst" occurs. i

Also the decision point 87 "is it time to end the registration?" is being influenced. This question continues through the "no" loop j of decision point 87 as the recording continues. "When the registration is finished, the answer here is" yes ". This will cause "stop registration-enrollment and turn on registration-complete -.- light on" 88. The light indicating that registration is completed.

; * j. , '' ^: '82 0 0 0 4 7. : -. "/".

- 16 - I

is shown in unit 52 in FIG. ;

After this registration is completed, the function returns to the "start" * point 81 cm to wait for the next command. I

If, on the other hand, the user puts the controller 82 into the "display time mode", the answer is in point 8h "yes." The activity of the function is waiting for the user to enter -89 "". introduces the desired j raster choice ". This is the page number or raster number of j's choice, expressed in terms, which are uniform throughout the system. The function then reads the choice from" reading the code from the .. video cassette / registration device video "90 .s This is the vertical interval time code, for example the SMPTE code. j '* i, .1

Subsequently, the decision point 91 asks "Is the V.C. |. · · R" registration code adapted to that of the choice? ". In general, the answer is "no", so that the function continues to 92 "moves", the 7. C.R. band of your choice ".: v. '^ _ |" .-' i ί - ·· 'Tan from this, the function returns to the unit. 90 to see if 'TV' • VV> iV. f "the required coder adaptation has been established. If not it i.

-Γτ ν · '' case- the activity in unit 92 is repeated until a code-: "’:;.

* -. «. '.. Λ> · ,. "·" .. "· · Λ -" adjustment is obtained. The answer from. Decision point 91 'is then. -.' Vi.. · =; · * Ν .. _ j - ·! '' * * - - -. - - -

"20 ** 3®" and therefore "display" of the selected video "93 is affected." "4T

The video cassette recording device tl according to Fig. 3.1 is hereby energized in order to establish the display in the TV spring input device; * i • · bring. -

While the unit 93 is being activated, the question "the display is complete?" Is asked a number of times in the connected decision point 9 ^. When the user shows the display of the chosen grid, j ^. ' • v '·· * takes the answer "no" and therefore the function cm remains the "no" - |. "; loop around. When the user no longer wishes that the grid. | • · 'is displayed, it affects a controller in the unit to indicate its 82 cm unit - t w t 2o'. The answer in point 9 ^ is then "yes". This causes the function to return to "start" 81 and the device to be used. Ready to accept a further command when it is applied to unit 82. \ i

Information enabling the decision point 85.

"" "35" is it time to register? " this decision is taken from "-.

lift RAM 50, which interacts with the microprocessor 7. In it, the time for registration is earlier in hours, minutes and seconds.

; S2 0 0 & 4 7: ·; Introduced the twenty-four hour period. The clock h6 indicates this} once the clock has been set by the user to the correct time of day j. When these two times are matched, it is clear that it is “time for recording.” The match can be recognized by performing an arithmetic subtraction between the two times several times. answer, he is this operation until j '1 .1-. · 1 i language nol, the times have been adjusted to each other »·" "· | '

The time is entered into memory by the user -y after he has received this information by a voice announcement from the "salvo" -10 communication center. This takes place after the processing of his request by the computer, as discussed above. : '-

The other way of introducing this time is in it; that the device, the central controller 1, transmits the code over the telephone line j to the user from the telephone link 20 and> 15. sheet directly to the MM memory 50 of the microprocessor b7 in FIG. k,! y; y; y; via a second telephone coupler in fig »’ "·" .- ~ ry- yy-yt: y; -; _- · ---- yy ··. ···. J '! 'The duration of the recording can be determined by the conditions that apply when using the system »One minute recording ···. ^ 1. -1800 grids. The duration can be based on this iagestéld-aet.vvyC '. - - - 20: a nominal, surplus cm to allow for a small, incorrect yyy.f- .: tempering of the two clocks involved. '

Above has been discussed a choice of suitable transmission channels ... with broad band. In the main example given, beforehand is under y. ; 82 0 0 04 7 y,, yy.y suppose that a common use of a transmission channel becomes! * I 1.

- 25 · made, as with a television program service, in which more j .- ··; - in particular .channel usage frequently occurs less than a minute j. '.

: - for the "salvo-V transfers." y "·" .- "j ·. Another construction uses a" toege-. Λ "" ·· essential channel "from a cable television or equivalent system. This is a separate broadband channel, used exclusively or almost exclusively for salvo services. .

; . Due to the different matter in each of the consecutive stationary "salvo" field gratings, the transmission acts as a

Si '-, · - - -. · · · I series of kaleidoscopic flashes, which are incomprehensible to an observer;

. 1 35 -be. · ''. · ·> - · - - · - y '• i. This is the opposite of normal television transmissions ;, ~ y -: where each grid is almost the same as the grid before it and yy- ----------: ------] -! - 18 -.: The grid after that. Therefore, a film presentation is obtained.

An assigned channel, although this is widely used; can be made and also a reasonably continuous use can be made, the transmission, if observed, not a television presentation in the sense of the word, but a series of incomprehensible flashes. ;

. r I

An important difference between the two presentations lies in the very small concentration of visual information in the television presentation, with thousands of grids comprising the same or nearly the same matter, compared to the salvo. presentation, where more specifically, each grid is different.!,, Therefore, the efficiency in transferring is meaningful., yyy

visual matter thousands of times larger with it. "salvo" system. At the I

"salvo" system can make an entire magazine in a fraction of a minute! • '·; - r1§ are transferred. Furthermore, twenty years of a month-time.

.1 I, · scriptures to be transferred in one hour. Magazines and other period ^, ..:; the sick can go through it. "salvo" process to subscriptions are "delivered." (y '· ;: ν'ϊ ,,. ·: ί.;' with a 'significant saving in paper and iaransportkortèu:;, i'> f. '· 1 r - ;; · ΐν-, ί; 'As for the device, it is clear that instead of the ^ -. V -: ^ ·; ·'. -20 - VTH ^ registration device. and others such as 8, 3-, k, etc. the digital.

Large scale collectors can be used by using semiconductor · 2 or other video collectors. . ;

V. · I

The term "empirically determined basis" means that although "may cause certain operational limitations. that a "salvo". j ·. > 25 is transferred every half hour, this is not a requirement. The interval can be shorter or longer when possible or desired. . v r. .·· For the assigned channel, the time interval between a request can be.

v; v - v - of a user and his "salvo" are only a few minutes. This * · J ... ....

** ·· * «- '' - - ^ 82 0 0 0 4 7. -:, ·. :: always varies with the amount of traffic in the system. V l. . · ".30 The" means for forming a video signal from a raster "- can be a slide projector with television camera, a film projector with still |

Upright grids with a television camera, a television camera, which is an S

. > observes the scene in a timely manner, or includes a page of a magazine, a j-drawing, a photo or otherwise. · '35! The phrase "salvo" used here means a number of grids- · ".

2 'of a television picture format, more particularly consisting of two fields: - interlaced fields, such as those in the United States of America.

-, r \ - 19 -.

applicable standard Tan 525 lines, 30 grids, βθ Count per 'sec. As already.

is Termeld the visual matter Tan does not normally keep any Ter-; • ·} hand with those Tan de Toorafending and Tolgende grids, like this the:

Numerous he is normal television. The expression 'Video speed' means the Tommen Tan a video (television) picture signal with such a scanning speed that a 'continuity Tan movement Tan the matter, as observed by the human f. While "lower" or higher speeds "can be used, a recognized rate is the" 30 "counted in the" United States - f '10 Tan America "Tan 30 Counts, 60 frames" per sec, "with a - ···· Two-to-one interleneering. ·. The expression "user" has been used here to identify} - an observer at a television display device under this system.

"· C" The expression T, subscriber "can also be used if the user"! . --- 15 pays for the service. technically, the three are: i,.

·. / - *: '- words mutually Terwisselbaaa ^:' ^ k '- .:'.? 2.-i ^ -'β:, - ¾ · ’.

". _. |

"I

•. i.

t. i ”. * i '; · - · t. t £ _ {'% - 1 * *

Claims (10)

1. Method for displaying a certain complete image on a; distance characterized in that only a frame of a video signal of the particular subject is formed, said one frame of the video signal with video speed is transmitted over a broadband communication channel 5, said one frame of the video signal after transfer with video speed is stored and, upon request, said one frame of the particular subject from the storage device a number! times at the original video speed is displayed, l • - -2. Method according to claim 1, characterized in that a number of on-; 10 equal determined images are chosen, each of said steps of the process for the one frame of the first image, afterwards. raster of the second image, etc. is successively completed and the | video signals representing the number of frames connect to each other. I Sf-:: ·. ", ™ 45" mounted r & Sr orarfeactt'mr bet eomanieatiekaoael aet '; ·... 15' wide band. · · · "" · ·. ·· .- / "" · "· ··. · 1.. Method according to claim 2, characterized in that in the video signal representing each of the number of selected frames, a certain code is introduced and this code is subsequently adapted. . - - end displaying only a certain grid out of the number of grids,! • '20 Method according to claim 2, characterized in that an accumulated query of successive, uneven frames of the video signal is introduced as a subsequent burst in the wide band communication channel for transmission. Method according to claim k, characterized in that the burst of; 25 frames of the video signal on an empirically determined basis in the camera; >: '··. · * Wide band communication channel is introduced. j • / ''! Method according to claim 1, characterized in that the one frame of the video signal of the determined subject is interleaved in an otherwise continuous video image transmission on an mutually exclusive basis. . ! Television apparatus for displaying at least one fully determined image at a distance characterized by means (1 - 8) for the | forming a video signal from a frame representing the determined image television broadcasting means (9) having a bandwidth sufficient to transmit the video signal of the determined image at video speed; 82 0 0 0 4 7 - Tl 21 -3TV! television receivers (column for receiving Tan video signals, not transmitting means, storing at least the video signal at a video rate representing the said one particular picture, these storage devices being connected to the television receivers): 5, means (kb) to provide television images and local controls (k3), which are connected to the storage and display means, to select the particular image for display. Television set according to claim 7, characterized in that the. means for forming a video signal of the said one frame 1 10 are provided with a central control means (1] 'for successively delivering a number of requests for a number of certain pictures. j. Television T-device according to claim 8, characterized in that the central control elements are provided with a number of sources (3, k,, n) - .15 of certain images and editing elements (81, which are controlled by the central control elements). !: if means are connected to form a contiguous video signal,]: * -that represents certain images. .. ..V - - ':;' v. 10. Television set according to claim 9, characterized in that the 'v'. -7--. ; . central controls, (1) 'are provided with a microprocessor (I) with ·' {r- .. v. '. 20 memory devices (16, 19) »registered calculator program devices (18.) ^ devices (20, 21 , 22) for communication with the user, organs '(30,' [31). for introducing a vertical interval code for each frame into the mounted video signal and a line (15) representing said units of the central control means for microprocessor control; 25 together. " 11. Television apparatus according to claim 7, characterized in that the local controllers (k3l are provided with a microprocessor (kj) with memory members (k9, 50l) vertical interval code readers (5b) 9; Which are connected to the storage means (k1) in order to take the converged vertical control interval code and a line (k8) connecting the units of the local control units for microprocessor control. connects. '!'. · '-. Λ 82 0 0 0 4 7 v