JPS58178682A - Information receiving and printing device - Google Patents

Abstract

PURPOSE:To display a program of picture information to be printed out, so as to be easily visible, by providing a program display on a printer for printing out receiving information by character multiplex broadcasting, etc. CONSTITUTION:An input from a keyboard 17 of a program designating circuit is stored in a memory 18. A program number code in a transmitted additional picture information signal is stored in a memory 19. Contents of both the memories are compared by a comparator 20, and in case of coincidence, one picture portion is accumulated in a main memory. Subsequently, the contents of the main memory are printed out. Also, the contents of the memory 18 are outputted and provided to a buffer driver 21 in a printer 15, and they are converted to a driving output and drive light emitting diodes 22, 23. In this way, a program number of two digits of picture information received at that time is displayed.

Description

Detailed Description of the Invention The present invention receives so-called teletext broadcasting in which additional image information signals such as characters and graphics are superimposed on a television signal and is transmitted, and stores the additional image information signals in a memory. In addition to reading out the image information and displaying the image information,
The present invention relates to a teletext broadcasting receiving apparatus that prints out the image information, and an object thereof is to provide an apparatus that can display the program of the image information to be printed out in an easy-to-understand manner.

2. Description of the Related Art So-called teletext broadcasting has been proposed as a means of multiplexing and transmitting separate new image information using a television broadcast signal. As shown in FIG. 1A, this can be done by using the vertical blanking period of a normal television broadcast signal, and then
Additional image information signals, in which additional image information such as characters or figures are decomposed and transmitted during the horizontal scanning period, are superimposed and transmitted using binary digital signals. This additional image information signal has a fixed number of bits (for example, 29
It consists of a group of digital signals (called data packets) of 6 bits, and its contents consist of a header section and an information data section. Then, depending on the content of the information contained in the data part, the page control bucket) (P
There are various types of packets, such as color code packet (CP), color code packet (CCP), and pattern data packet (FDP). The page control packet (PCP) is transmitted before the transmission of one screen of additional screen information, and the data section contains the program number (PCP).
R).

Page control code signals such as a page number (PA), a screen erase or screen update warning code (ED), etc. are included. A color code (CCP) is transmitted following the page control packet <pcp>, and a color code (CC) indicating the color in which each character or unit division of additional surface information is to be displayed is transmitted. ing. Furthermore, the pattern data packet (PDP) is then transmitted continuously for one screen (other packets may be inserted in the middle), and the data section contains additional image information to be displayed horizontally. A pattern data signal corresponding to one line is transmitted when scanning in the direction. Note that there are several other types of data packets, but their explanation will be omitted here.

In addition, the header of every data packet includes a clock run-in signal (CR) for synchronizing the data sampling clock on the receiving side, a framing code signal (FC) for frame synchronization, and a service identification/allocation signal. control signal (SI/IN), and a data identification signal D11.indicating which type of data packet the data packet is. DI2 is being transmitted.

The receiving device receives the transmitted television signal with such an additional image information signal superimposed thereon, extracts the additional image signal, and sends it to a page control packet (Pc
P) to select the signal of the desired program to be received, and select the color code data (CC) in the color code packet (CCP) of the additional image signal of that program and the pattern data signal (P).
The image information is displayed on the screen by storing the pattern data (PD) in the DP) for one screen in memory, reading it out in synchronization with the screen scanning of the cathode ray tube, and converting it into an image signal for display. . Generally, a normal television receiver is also used to receive additional image information, and a circuit for processing the additional image information signal is added, and a cathode ray tube is used to display the received image information. Displays image information such as character information on the screen of the computer by superimposing the received image (moving image) of a normal television broadcast program, or by erasing the received image.

However, simply displaying the image information on a cathode ray tube or the like in this way cannot leave it as a record because the display is temporary, so the received image information is printed out on recording paper.

However, when using the above-mentioned receiving device, the cathode ray tube of the television receiver simultaneously receives additional image information signals up to the screen where the normal received image is projected and stores them in memory, but the image information is not displayed on the screen. In some cases, the information may not be displayed on the screen and may only be printed out depending on the printer.

In such a case, it is difficult to know which program's image information is being received or printed out, which is inconvenient. Furthermore, when the main body of the television receiver and the printer are connected by cable and installed separately, there is the inconvenience that it is difficult to understand which programs are printed out by the printer.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a device that eliminates such drawbacks, and includes a program display device that displays a program of image information to be printed out on a printer that prints out information received by teletext broadcasting, etc. The feature is that it can be installed.

EMBODIMENT OF THE INVENTION Hereinafter, the present invention will be described in detail with reference to the drawings showing one embodiment thereof.

FIG. 2 is a block diagram showing the overall configuration of an embodiment of the present invention.

In the figure, 1 is a tuner, 2 is a VIP circuit, 3 is a video detection circuit, 4 is a chroma signal and video signal processing circuit, 6 is a synchronization separation circuit, 6 is a horizontal oscillation circuit, 7 is a color subcarrier Cf5
c) A reproducing circuit, and these 1 to 7 are similar to the circuit of a color television receiver. 8 is a circuit for waveform-shaping the video detection output signal and converting it into a binary signal; 9 is a clock generation circuit for sampling the additional image information signal superimposed from the received television signal; 10 is a main memory 12 Write/read processing circuit (R//w processing circuit)
A microprocessor can be used. 11 is a readout clock generation circuit for the main memory 12; 12 is a main memory for storing one screen worth of image information (color code CC and pattern data PD) in the received additional image information signal;
3 is a circuit for mixing or switching the readout output of the main memory 12 and the output of the processing circuit 4; 14 is a cathode ray tube (C) for display;
RT). Furthermore, this device is equipped with a printer 16 for printing out the received image information stored in the main memory 12.

The program of additional image information to be received by this device is specified and inputted from a strap designation circuit 16 such as a keyboard, and the additional image number code (PRl,
PH1), and only when the two match, the additional image information signal of the designated program is received, and the main memory 12
The image information is stored in .

Next, the control portion of this printer 15 will be explained in FIG. 3 with reference to FIGS. 3 to 5. With this device, the program number of the image information to be received and printed out is BCD.
It is designated by a 2-digit code, or 8 pits. Program designation circuit 1
When a two-digit program number is designated using the keyboard 17 of the program number 6, it is stored in the designated program memory 18. On the other hand, the program number (PRl) in the transmitted additional image information signal
, PH1) is taken out and stored in the received program number memory 19. The contents of both memories 18 and 19 are compared by a comparator 20, and if they match, the comparison output is set to high level and the service identification/interrupt signal (SI/IN) is set to high level.
) in the latch memory, and the same SI/
When a packet of IN signal is received, the received data (CG, PD) of the packet is sequentially written into the main memory 12, and image information for one screen is accumulated. Therefore, if the contents stored in the main memory 12 are read out one rank at a time and sent to the fax-type printer 16 for printing out, the screen of image information of characters and figures can be printed on recording paper etc. and recorded. can.

Furthermore, this device outputs the memory contents of the specified program memory 18 and adds them to the buffer driver 21 provided in the printer 15, converts this into a drive output signal for the segment, and outputs the numeric display light emitting diode 22, 23. By driving , the two-digit program number of the image information that is being received at that time and is to be displayed or printed out is displayed. At this time, even if the cathode ray tube 14 of the television receiver displays a normal television broadcast reception screen, if the printer 15 reads the stored contents of the main memory 12, the stored image information is printed out. Even if the program number to be printed out by the printer 15 cannot be displayed on the display screen of the television receiver or the main body of the television receiver, it is easy to see because the printer 16 is equipped with a program display device. It can be done.

FIG. 4 shows an external view of an example of this device. Here, 24
2 is the television receiver main body including the remaining parts excluding the printer 15 in FIG. 2, and also includes a channel switching section 26 and a print command switch 26. The multi-core cable 28 connecting the 27id main body 24 and the printer 15 is printed out recording paper.

Next, an embodiment in which a plurality of programs of image information to be printed out by the printer 15 can be reserved will be described with reference to FIG. In the example shown in Fig. 5, the screen to be printed out can be reduced to 8 program molecules, and for this purpose, 8 designated program memories 18A to 18H are provided (A-H).
Be equipped.

First, when the print command switch 26 on the teletext receiver side of the television receiver body 24 shown in FIG. 4 is pressed, the counter 29 is cleared to "ooo" and the selector 3
0 selects and outputs the designated program number stored in the first designated program memory 18A. At this time, the select input Se of the selector 31 is at the Mr. 1 level, and the output of the counter 29 (in the clear state, the (both bits are 0") is selected and added to the selector 3o. Here, assuming that the designated program memo IJ (18A) has the program '24' specified and stored in memory, the TV character When the additional image information signal of the 24-part program is transmitted by multiplex broadcasting and received, the detection output of the comparator 20 becomes high level,
The image information of the program is stored in the main memory 12, and further read out to the printer 15 and printed out.

Then, when the transmission of one screen worth of image information of this '24'' program becomes too heavy, the end detection circuit 32 detects it. 3) The detection method is as follows: /IN) changes (there is an interruption and a change to another program, but it is possible to determine whether it is an interruption or not from this SI/IN signal), it can be considered that the transmission for one screen has ended.This transmission After detecting the end, one increment pulse is supplied to the counter 29 to make its output ``○01'', and the output of the selector 30 is set to the specified program number from the next specified program memo 1J18B, for example, ``35° program''. Then, you can receive, display, and print out the "35P program." Thereafter, in the same way, every time the image information of one designated program is received, a memo is made +) 18A to 18H
It is possible to receive, display, and print out eight designated programs one after another by switching the eight designated programs one after another.

In such a case, the user may want to check the program number reserved in advance. At that time, monitor switch 3
When 3 is operated once, one pulse is output, and the timer (retriggerable) 34 outputs a switching signal that remains at a high level for, for example, 5 seconds, and the selector 31
is switched so that the output of the counter 35 is applied to the selector 30. This counter 35 is a 3-bit binary counter, and its output is in 8 states from Oo○゛° to "111".When the monitor switch 33 is operated, no matter which state it starts from, if it is operated 8 times, The outputs of the eight designated program memos 1718A to 1718H can be read out in sequence and displayed on the numerical display light emitting diodes 22 and 23 without fail. 5
If the monitor switch 33 is not operated within seconds,
The output of the timer 34 becomes low level, and the selector 31
returns to the state in which the output of the counter 29 is output.

Note that when a page control packet (PCP) of any program is transmitted while monitoring a specified program, the program number (PRl,
Even if PH1) is the same as one of the programs in the memories 18A to 18H, if it is different from the output of the selector 30 at that time, the comparator 20 will not output a matching output and the printout will be delayed, but this is not practical. Generally speaking, there is not much of a problem. In this way, a display device for programs to be printed out and a monitor function for reserving multiple programs can be installed in the printer, and parts other than the monitor switch 33 in FIG. 6 can be seen on the side of the main body 24 of the character receiver. For example, the circuit of the printer 15 does not become very complicated.

Further, by processing these circuits using a microcoipulator, the circuits can be considerably simplified.

Note that the printer 15 that can be used here has a buffer memory that supplies horizontal and vertical pulses and stores one line of output signals from the main memory 12.
6, read from the main memory 12 in order starting from the first line, write it to the buffer memory, and print the contents of the buffer memory with a printer of the Facnomy system, and each time one line is printed out,
The line counter inside the printer is incremented and the signal read from the output of the main memory 12 is shifted one line at a time and input to the buffer memory.
4 lines) in 7 to 8 seconds.

In teletext broadcasting, the same screen (same program) is broadcast approximately 20 to 3 times.
Since the data is transmitted at a cycle of 0 seconds, rewriting of the main memory 12 may be stopped if printing is still in progress when printing is specified.

Furthermore, when printing is specified, the output of the mixing/switching circuit 13 may be such that the entire received image of normal television broadcasting is displayed.

[Brief Description of the Drawings] Fig. 1 is a waveform diagram showing the transmission mode of teletext broadcasting, Fig. 2 is a block diagram of an information receiving and printing device in an embodiment of the present invention, and Figs. 3 and 5 are the same. A detailed block diagram of the main parts of the device, and FIG. 4 is an external view thereof. 1...Tuner, 2...VIF circuit,
3・ψ・・・Video detection circuit, 4・・・Chroma・
Video processing circuit, 8... Waveform shaping circuit, 9...
...Write clock generation circuit, 10...0...Φ write/
Read processing circuit, 11...Read clock generation circuit, 12...Main memory, 13...Mixing.
Switching circuit, 14...CRT 15...@II
S. Printer, 16...Φ0 program designation circuit, 17.
...Keyboard, 18.18A-18H...
...Specified program memory, 19...Received program strange rock memory, 20...Comparator, 21...Buffer driver, 22.23--Number display light emission Diode, 24... ■... Main body, 26... Print command switch, 27, Fist... Multi-core cable, 28
・■・・・Record paper, 29 ・Fist...Counter, 30,
31...Selector, 32...End detection circuit, 33...Monitor switch, 34.0...
・・Timer, 36・・・・e counter. Name of agent: Patent attorney Toshio Nakao, 1st person, 2nd person
Figure 3 Figure 8 Figure 4 Figure 5

Claims (2)

[Claims] (1) Receive an additional image information signal of multiple programs such as letters or graphics transmitted superimposed on a television signal, and store image information data of the selected program in a memory; and a printer capable of displaying the image information by reading it from the memory and printing out the image information using the received image information data, the printer having the image information to be printed out. An information/information receiving/printing device characterized in that a program display device is installed to display which of the plurality of programs the program belongs to. (2) It is possible to reserve a plurality of programs of image information to be printed out, and the reserved programs are manually sequentially displayed on a monitor on a program display device. Information receiving and printing device as described.