JPS6221392A - Recorder for video tex service - Google Patents

Abstract

PURPOSE:To cancel automatically a part already recorded in a video tape by adjusting a recording part to a standby position for recording when a recording position of a medium is returned to a recording head position of a first one display picture of a program in which the specific information is transmitted. CONSTITUTION:During receiving a selected program, when the receiving and the recoding of said program are not required, a keyboard 18 is operated and the specific information is transmitted from a decoder 11 to a host computer of an information center. The specific information is inputted to an input terminal (i) of a detecting part 20 and the detecting part 20 outputs a detecting signal for an interruption command from an output terminal (o) to an input terminal wi of a VTR 33. The VTR 33 is controlled from the recording to a rewinding, a video tape is started to be rewound and when the video tape is rewound to a recording start end position of the selected program, the counting contents of a counter circuit 32 go to '0' and outputs a recording standby command signal to an input terminal pi of the VTR 33 from an output terminal po. The VTR 33 is controlled again to the recording standby and the recording position of the video tape at this time is returned to a recording head position of the first one display picture to the specific information transmitted program.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This 'l&q relates to a recording device for Videotex service that records received information of Videotex service.

[Conventional technology]

Conventionally, the Videotex service uses a separate two-way communication number between the information center and each receiving terminal to display the information on the menu screen for program selection one screen at a time, and the information on the number a screen of the selected program on one screen at a time. This is a service that is transmitted from an information center to each receiving terminal, and each menu screen and one program screen are formed by one screen or multiple screens.

The information transmission method of the Videotex service is an international standard method for transmitting text and graphic information such as the CAPTAIN method.

Various systems have been invented, including a text-only system that uses the US 1 standard information exchange code (ASCIII) to transmit only character information.

By the way, Videotex services are generally database-based, and in this case, the user has to select and specify the desired program many times from the menu screen displayed on the receiving terminal. .

Therefore, the menu screen will be received and displayed many times before the program screen of the desired program is received and displayed on the receiving terminal.

On the other hand, in order to effectively utilize the received information of the Videotex service, it is possible to record and save the received news.In this case, in order to save records economically, it is possible to
Record only the information on the program screen that was displayed.The information unique to one menu song, which is always included in the information on the knee screen, and the information on each program screen.
Focusing on the fact that the program screen-specific information that is always called for the screen's worth of information is different, we focused on the fact that each screen's worth of reception information, that is, the received number! A recording device for videotex service is described that sequentially records only one screen worth of information on each side.

8. The text-only one-way videotex service recording system described in the above application is configured as shown in FIG.
21 is a communication interface circuit connected to the information center, and (3) is an interface circuit (a general-purpose asynchronous transmission/reception circuit (UART) connected to 11).

(4) is an ASCII decoder/control circuit connected to the transmitter/receiver circuit (3), and ffi+ is a data bus connected to the control circuit (4).

address bus, (7) is page store memory connected to both buses +51, +6), (8) is address bus (
6) a display timing signal generation circuit connected to (9);
is a character cinerator connected to the data bus (51), and αO is a picture tube connected to the generator (9).

(11) is the transmitter/receiver circuit (3) by activating the switch f121.
041 is a switch provided between the decoder Ill and the detection circuit (131), 0ω is connected to the detection circuit f13. This is a timer circuit.

The river is a videotape recorder (hereinafter referred to as VT) that forms the recording section.
The video input terminal tri) of the VTRflfl is connected to the character generator (9), and the recording command input terminal (ri) and recording standby command input terminal (pi) are connected to the detection circuit ++31. Each is connected to a timer circuit 0ω.

and an interface circuit (l) and a transmitting/receiving circuit (3).

Vine Ji1i0 circuit (4). A data bus (51, address bus clock), memory (7), 9 generators (8), generator (9), picture tube αO, and decoder (11) form a text-only videotex service receiving device. At the same time, switch I is connected to the receiving device.
11, 1121, detection circuit 03.547 circuit αω,
A receiving terminal αη is provided with a videotex service recording device consisting of a VTRUυ.

By the way, in the case of a text-only one-sided Videotex service, as shown in Figure 3, the information on each menu side (α) includes information specific to both sides of the menu for program selection commands displayed at the bottom of the double side (α). Information such as "Enter item number H"
The e1pJ menu screen specific information (X) is always included.

In addition, as shown in Figures 4(a) and (b), each program screen (
Dark information includes screen-specific information for the continuation of the display displayed at the bottom of the screen (b) or for announcing the end, even if it is "-More-(-More-) J, r-End-(
-End-) J program screen specific information (y), (y)
' must always be included.

Since the unique information (X) and the unique information (y), (y)' are different, the unique information (y), (y)' is included in the received information.
)' is included, it is determined whether the received information is program screen information.

Therefore, in the case of Figure 2, before using the service, switch +
121 is turned off, switch I is turned on, and the keyboard connected to decoder I is operated to store the unique information (y) and (y)' in the memory of the detection circuit (13).

Next, after turning on the switch 1121, turning off the switch (I41), and setting the VTRne+ to recording standby, the user operates the keyboard to start using the Videotex service.

Then, through bidirectional communication between the information center and the terminal α~, the telephone line (2), the interface circuit (1),
Information on the menu screen (α) or program screen (5) is sent to the decoder/control circuit (4) via the transmitter/receiver circuit (3).
When both sides are sequentially received and input, the decoder/control circuit (4) receives information for each input screen.

Write-r address bus, data bus (6), address bus (
6) to the memory (7), and also outputs the received information to the detection circuit (13).

Furthermore, the received information for one screen is sequentially written into the memory (7) according to the write address, and the information is written into the memory (7) according to the read address inputted from the generation circuit (8) via the address bus (6). The received information that has been entered is read out repeatedly.

The received information read from the memory (7) is input to the generator (9) via the data bus (6), and the video signal of the received information is output from the generator (9) to the picture tube αO. , the reception information screen.

In other words, the received menu screen (α) or program screen (
b) is displayed.

By the way, it takes a relatively long time to transmit the information for each one screen of menu screen (a) 1 program screen (dark), and the readout address is repeatedly output during the reception period of each screen of information, so the picture tube On αG, the screen in the process of forming a complete screen of each of the menu screen (α) and 9 program screens (b) is repeatedly displayed, and then a complete screen of each of the menu screen (α) and 9 program screens (phrase) is displayed repeatedly. Is displayed.

On the other hand, the detection circuit 0:l is the unique information (y) or (y)'
is input, that is, when the reception information at the bottom of the program screen (β) is input, the input terminal of v'rRae (
vi) A recording command detection signal is output to the timer circuit side, the VTR fl is controlled from recording standby to recording, and the timer circuit 0151 is activated.

The VTR 161 controlled for recording has an input terminal (
viH starts recording the input video signal, that is, the video signal output from the generator (9).

By the way, when the unique information (y) is received, the memory (
Since the received information for one complete screen of the program screen (3) is included in the program screen (3), the video signal output from the generator (9) contains the received information for one complete screen of the program screen (corner). video signal.

Therefore, on the recording medium of the V T RH, that is, on the video tape, information for one complete screen of the received program screen (corner) is recorded as a video signal.

Furthermore, the timer circuit iIω outputs a recording standby command signal to the input terminal (pi) of the VTR0υ when a predetermined period of time has elapsed since it was activated, that is, when recording of one screen worth of video signals has been completed.

Then, after recording the video signal of the received program screen (one completely dark screen of information), the VTR 161 is again controlled to standby for recording.

Thereafter, by repeating the same operation, only one complete program screen (b) of information for each received program is sequentially recorded on the video tape as a video signal.

Furthermore, when receiving the information on the menu screen (α), the received information includes the unique information (y), (y)' of the detection circuit θ.
is not included, the detection signal is not output from the detection circuit a3, and the menu screen (reception information of A is VTR(lf
It is not recorded in l.

Therefore, only the information on the program screen @ of each program that is necessary for recording and storage is automatically and directly recorded on the Rα0 videotape, making it possible to economically record and save the reception screen, and also to save the recorded information on the program. Since the information is only complete for one screen each, searching after recording can be done quickly and easily.

In addition, since the information on the program screen (corner) is recorded as a video signal, for example, when searching after recording, a high-speed search can be performed by high-speed playback, making the search easier.

[Problem that the invention seeks to solve]

By the way, in the case of Figure 2, it is only recorded automatically, so for example! 11; There is a problem in that even if recording of the program becomes unnecessary during reception of the program, it is not possible to automatically cancel the recording of the part that has already been recorded on the videotape.

In addition, to interrupt the transmission of the program being received, please use the terminal Q71.
This is done by transmitting specific information for commanding program screen transmission interruption to the information center, such as Q-RETURN IJ, and the information center receiving the specific information is transmitted to the terminal (lη). As shown in FIG. 5, the next program screen (dark information) includes the letter Q indicating reception of specific information and an input request command (BULLETIN3) for the next menu screen (α).

[Means for solving problems]

This invention was made with the above points in mind,
Menu screen 9 for selecting i'J1 through two-way communication
It is attached to the terminal of the Videotex service that transmits the information of the program screen of the selected program one screen at a time from the information center to the receiving terminal, and it transmits the information of the program screen of each program received by the terminal. In a videotex service recording device that records one screen at a time, program screen specific information included in each one itfj page of information is stored in advance, and each one page of the terminal is recorded. a recording detection unit that outputs a recording command detection signal when the program double side unique information is included in the received information of the side; and a control switch from recording standby to recording by inputting the recording command detection signal;
a recording unit that records information on a received program screen on a recording medium; and a recording position that controls the recording unit to be on recording standby after a recording period of information for one screen has elapsed from the output of the recording command detection signal. and a changing means, which stores in advance specific information for an @group double-sided transmission interruption command transmitted from the terminal to the center, and outputs an interruption command detection signal to the recording unit when the specific information is transmitted. an interruption detection unit that returns the recording position of the medium and sterilizes the medium; and an interruption detection unit that returns the recording position of the medium to the recording head position of the first screen of the program that transmitted the specific information when the recording position n of the medium is returned to the recording head position of the first screen of the program that transmitted the specific information. This is a recording device for videotex service, characterized in that it is equipped with a recording position changing means for controlling recording standby.

[Effect]

Therefore, only the information on both sides of each received program is 1
Next, each screen is automatically recorded on the recording medium of the recording unit, and when the program being received becomes unnecessary and the specific information for commanding program screen transmission interruption is transmitted, the recording medium is automatically recorded. After the recording position device has returned to the recording start position of the first screen of the program that transmitted the specific information, in order to control the recording unit to recording standby, information on both sides of the program of the next selected new program is received. Sometimes, by recording the information of the program, the program that transmitted the specific information is automatically deleted from the first screen, and the recording is canceled.

〔Example〕

Next, this invention will be explained in detail with reference to FIG. 1 showing its l-implementation sequence.

In Figure 1, the same symbols as in Figure 2 indicate the same things;
91 is an IT switch provided between the decoder Ill and the transmitting/receiving circuit (3), which is an interruption detection section, and the input terminal (1) is directly connected to the decoder +II+,
The set terminal (S) is connected to the decoder (11) via a second switch e21).

Fixed, @ input terminal (i) also serves as a decoder: 511 visit round (
4), which was desecrated in the first place. This is the second unique patrol detection circuit, and the set terminal (S) is g2. It is connected to the decoder music via the GA switch 241° and the GA switch, respectively. Four, one
271 has two power and one child detection circuit, @ output terminal (o)
t's, the first and second or gates, connected respectively to the 'm
is a recording detection section having a structure shown by a broken line.

4 is a timer circuit whose input terminal (i) is connected to the output/terminal of the OR gate penalty, forming recording standby control means. ω is a monomulti whose input terminal (i) is connected to the output terminal (0) of the detection port i'115EIl;
) The AND gates are connected to each other, and the reset terminal (rs) is the AND gate for the three! It is a tape counter circuit connected to the output terminal of 311, and has a counter pulse input terminal (ci) and a standby command output terminal (pO), and forms a recording position changing means together with the monomulti, the goose, and the AND gate. .

□□□ is a VTR forming a recording section, and the recording command input terminal (ri) is connected to the output terminal of the OR gate W, and the recording standby command input terminal (pc) is connected to the timer circuit 4 through a diode. The video input terminal (vi) and the rewind command input terminal (Wl) are connected to the output inertia (0), respectively, and the output terminal of the generator (9) and the detection section'
The counter pulse output terminals (CO) are connected to the counter pulse input terminals (ci) of the counter circuit 3z, and the counter pulse output terminals (CO) are connected to the counter pulse input terminals (ci) of the counter circuit 3z.

And interface circuit (1), transmission/reception circuit (3)
.

Decoder and control wholesale circuit (4) 9-car Ikusu i51. +61
and a memory (7), a generating circuit (8), a generator (9), and a picture tube αO.

A text-only videotex receiving device formed by a keyboard, a decoder (11),
A recording device for Videotex service consisting of a switch Q91, 1), a detection section, a circuit and a timer circuit, a monomulti switch, an AND gate circuit, a counter circuit (TZ, a VTR device, and a diode) is attached and receives the signal. terminal t3
el is configured.

By the way, by two-way communication, telephone line 1 is connected from the information center to
2) Menu screen (a) transmitted to the terminal unit via
The information for each one screen always includes the menu double-sided unique information (X) shown in FIG.

In addition, the information for each screen of the program screen (in each corner) is shown in Figure 4 (
a), (b) program screen specific information (y), , (
y)' must be included.

The unique information (y) is included in the information for each side of each program, from the first screen to the screen before the last screen, and the unique information (y)' is included in the information for each side of each program. It is included in the final screen worth of information.

Note that in the case of a one-screen program, the unique information (y)' is included in the information for one screen of the program.

On the other hand, if you wish to interrupt the transmission of the program screen (corner) of a certain program while receiving it, by operating the keyboard, the decoder tl11 sends a message to the host computer of the information center.
Specific information for program double-sided transmission interruption command.

For example, specific information such as "Q-RETURN J" is transmitted.

Therefore, before using the Videotex service, you should switch (
19), turn on switches H and (241, (to)) in order to store the specific information and unique information (y) for the program double-sided transmission interruption command in the memory of the detection unit and detection circuit (241, all). .

(y)' are stored respectively.

Next, when using the Videotex service, turn on the switch (1 Sakaki) and switch e11.
For example, after keeping r2i off and setting VTR, M as a recording device, two-way communication is started by operating keyboard α8. Note that by setting the VTR 331 to recording standby, the counter circuit is initially reset.

Then, through two-way communication, the menu screen (α), the selected number, and the information on both sides of the vinegar group (β) are input one screen at a time to the terminal (Aim), and the receiving device of the terminal (to) It operates in the same way as the receiving device of the terminal Oη, and the picture tube αO displays one each of the received menu screen (α) and eight program screens (b).
Screens are displayed in sequence.

It should be noted that it takes a relatively long time to transmit information for each of the nine program screens (a) on the menu screen (α).
) 1 program screen (until each corner screen is completely displayed, each half-formed screen is repeatedly displayed).

Then, the program screen of the selected program (the information at the bottom for each one screen of β, that is, the unique information (y) or (y)') is received, and the program screen (suddenly one complete screen of information) is stored in the memory (7). When the information is written, the received unique information (y) or (y)' is output from the decoder/control circle circuit (4) to the input terminal (i) of the detection circuit 22.(Zl).

Now, if a program with multiple screens is selected and, for example, the unique information (y) of the first screen is received, then the unique information 4 (y) output from the decoder/control circuit (4) is detected. Matching the unique information (Y) stored in advance in the circuit, the detection circuit 2 detects reception of information for one screen of the program screen (β) and outputs a first detection signal for recording command.

Then, the first detection signal of the detection circuit In is an OR gate (to)
, are input to the input terminal (i) of the timer circuit and the input terminal (b) of the VTR through the wires, the timer circuit is activated, and the VTR is controlled from recording standby to recording.

On the other hand, when the first detection signal is output from the detection circuit group, the unique information (y
) is read out from the generator (9), and a complete Iiii! screen having unique information (y) is read out from the generator (9). A video signal of the received information for j pages is output.

Then, the video signal output from the generator (9) is input to the input terminal (vi) of the VTR, 133, and V
T.R.

The video signal of the received information of the first program screen (complete corner III screen) of the selected program is recorded on the recording medium of the device, that is, the video tape.

By the way, during recording, the VTR 13.1 outputs a counter pulse for addition from the output terminal (co1) to the input terminal (CO) of the counter circuit O3 in accordance with the progress of video tape recording.

Therefore, the count content of each counter time i is increased to one line of recording from the recording head position of the first screen of the selected program; therefore, the number is increased to ode.

On the other hand, when one screen worth of video signals is recorded on the VTR 133, a recording standby command signal is output from the output terminal (0) of the timer circuit.

Then, the recording standby command signal output from the timer circuit is input to the input terminal (pi) of the VTR 13m, and the VTR
After recording the video signal for one screen of information, the device 3 is again controlled to standby mode and stops recording.

Note that when the VTR (to) is controlled to standby for recording, the counter pulse is also no longer output, and the counter circuit stops counting.

After that, by repeating the same operation, the second program of the selected program will be displayed.
The video signal of the received information for each screen after the screen is recorded next.

When the unique information (y)' of the last page of the selected program is received, the unique information (y)' output from the decoder/control circuit 14) is changed to the unique information (y)' stored in advance in the detection circuit @. y)', the detection circuit array detects the reception of information for one screen of the program screen (in season) and outputs a second detection signal for the record/green command.

Furthermore, the second detection signal output from the output terminal (0) of the detection circuit is transmitted to the VTR133 via the OR gate name, @.
1. The same operation as when the unique information (y) is input to the input terminals (ril and (i)) of the timer circuit is detected. After recording the video signal of the information, recording standby control is performed.

Also, the second signal output from the output terminal (0) of the detection circuit
The detection signal is input to the input terminal (i) of the monomulti j, and the monomulti j is activated.

The metastable period of one mono multi is set to a period slightly longer than the recording period of the video signal for one screen, and the output signal of the mono multi is set to a high level only during the metastable period. Only when a video signal of information for one screen of the page is recorded and a recording standby command signal is output from the timer circuit, the AND gate 31
) to the reset terminal (rsl) between the counter circuits, a high-level reset signal is output, and the count contents of the counter circuit 3z are reset to zero.

That is, the counter circuit Gz changes the counting contents from the recording start position of the first screen of the selected program as the recording of the videotape progresses, and changes from the recording start position of the first screen of the selected program to the last one of the program.
After the count reaches the maximum at the recording end position for the screen, it is reset and the count returns to zero.

Note that if the selected program is a one-screen program, unique information (y)' is included in the information for one screen of the program.
The counter circuit is activated only while recording information on one screen of the program.
The count contents change.

Next, if the reception and recording of the selected program becomes unnecessary while receiving the selected program, operate the keyboard US to instruct the decoder Il to instruct the transmission of both sides of the program to be interrupted.
The above-mentioned specific information is transmitted from the computer to the host computer of the information center.

Then, when specific information is output from the decoder (11),
The specific information is also input to the input terminal (i) of the detection unit,
At this time, the detection unit ω outputs a detection signal for interruption command from the output terminal (o) to the input terminal (wi) of the VTR 133, since the input information of the input terminal 0) matches the specific information stored in advance. do.

On the other hand, when specific information is transmitted, the video signal for each screen of the selected program until the specific information is transmitted is recorded on the video tape, and the counting contents of the counter circuit are the same as those of the selected program. The number has changed to indicate the current recording position.

When a detection signal for an interruption command is input to the input terminal (will), the VTR133 is controlled from recording to rewinding, starts rewinding the videotape, and at this time output terminal (
A counter pulse for subtraction proportional to the rewinding of the tape is output from col to an input terminal (cil).

Therefore, the count content of the counter circuit O4 decreases in proportion to the amount of rewinding of the videotape, and when the videotape is rewound to the starting point of the selected program, the count content of the counter circuit O4 decreases. When it becomes 0, the output terminal (po)
outputs a recording standby command signal to the input terminal (pi) of the VTR 1331.

Then, since a recording standby command signal is input to the input terminal (pi), the VTR 33 is controlled to be in recording standby again, and at this time, the recording position of the videotape is set to the recording start position of the first double side of the program that transmitted the specific information. will be returned to.

By the way, at the time of recording, the V T RG 3 feeds the video tape to the recording head by activating the erasing head, and performs erasing and recording every 1 li to record the video tape.

Then, by selecting a new program after transmitting the specific information, the specific news (y) or (y)' of the program is received, and the VTR is controlled to record and the new number is recorded on the videotape. When a video signal of one screen worth of information of , The record of the transmitted program is erased and canceled, and a new video signal of one screen worth of information is recorded in the erased portion.

That is, when the reception and recording of the program that is currently being received becomes unnecessary, the user operates the keyboard to transmit specific information for commanding the interruption of program screen transmission to the information center, and instructs the transmission of the program to be interrupted. After the recording position of the videotape is automatically returned to the recording head position ill of the first screen of the program that transmitted the specific information, the VTR, '331 is placed in recording standby mode (2) and starts recording a new program. When the VTR 133 is next recorded by reception, the video signal of the reception information of the new program is re-recorded in the recorded part of the program that transmitted the specific information, and the video signal of the received information of the new program is recorded again. will be automatically cleared and canceled.

The program screen of the selected program (one screen in each corner) can be automatically recorded, and the recording of unnecessary program screens (in each corner can be canceled), so the videotape contains each received program. Only necessary program information is economically recorded,
Usability and economic efficiency can be improved.

Also, since program information is recorded as a video signal, it is
Searching for f can be easily performed. .

Although the recording section was formed using a VTR in the above embodiment, the recording section may be formed using various types of recording devices such as optical and AA disk recording devices. Unfortunately, the computer medium has changed to disks, etc.

Furthermore, it is of course possible to use signals other than video signals, such as received digital signals or digital signals converted and formed according to the recording format, to record information on the recording medium.

Furthermore, it can be applied to various types of Videotex services other than the text-only one-type Videotex service, and in this case, the unique information and prescribed information are
It varies depending on the Videotex service method.

〔Effect of the invention〕

As described above, according to the videotex service recording device of the present invention, each li'i of the selected program number m screen is
Based on the program screen specific information included in the information for eight pages,
The recording detection unit detects the reception of information for one screen of each selected program, and the recording unit is controlled to record for a period of time during which information for one screen is recorded after this detection, so that the recording medium can be used as a recording medium. , it is possible to automatically record only the program screen information of the selected program one screen at a time, and when the program being received becomes unnecessary, the interruption detection section allows information to be recorded from the receiving terminal side. After detecting the transmission of specific information for commanding the interruption of program screen transmission to the center and automatically returning the 2nd position of the 2nd place medium to the recording head position of the first screen of the program that transmitted the specific information, By putting the recording unit on standby, when recording the received information on both sides of the next selected program, the record of the information on the program that transmitted the specific information will be erased from the first screen. It is possible to cancel and automatically record only the program screen information of the necessary programs from among the selected programs on the notation medium, thereby improving usability and economic efficiency. .

[Brief explanation of drawings]

Figure 5.1 is a block diagram of one implementation of the videotex service recording device of the present invention, and Figure 2 is a block diagram of a conventional videotex service recording system.
Figure 3 is a bottom view of the menu screen, Figure 4 (a). (b) is a front view of the program screen, and FIG. 5 is a front view of the program screen after specific information has been transmitted. QOl-... Interruption detection unit, 2 &... Recording detection unit, 2! l
...Timer circuit, ■...Mono multi, 1311.
...And gate, 32-...Tape counter circuit, 1
331...Video tape recorder,...Receiving terminal. Agent Patent Attorney Fuji 1) Ryutabe jllllgI Figure 2

Claims (1)

[Claims] (1) The terminal is attached to the terminal of the Videotex service, which transmits information on the menu screen for program selection and the program screen of the selected program one screen at a time from the information center to the receiving terminal through two-way communication. In a videotex service recording device that sequentially records program screen information for each program received by a machine, one screen at a time, program screen specific information included in each one screen of program screen information is stored in advance. , a recording detection unit that outputs a recording command detection signal when the program screen specific information is included in the received information of each screen of the terminal, and controlling from recording standby to recording by inputting the recording command detection signal. a recording unit that records information on the received program screen on a recording medium; and a recording standby control that controls the recording unit to be on recording standby after a recording period of information for one screen has elapsed from the output of the recording command detection signal. and specifying information for a program screen transmission interruption instruction transmitted from the terminal to the center in advance, and outputting an interruption instruction detection signal to the recording section when the specific information is transmitted; an interruption detection unit that returns and controls the recording position of the medium;
The program is characterized by comprising a recording position changing means for controlling the recording unit to standby for recording when the recording position of the medium is returned to the recording head position of the first screen of the program that transmitted the specific information. Recording device for Videotex service.