JP3033798B2 - Teletext receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a teletext receiver for extracting TV program information from a teletext signal of each channel and making a recording reservation for a connected VTR using the TV program information.

[0002]

2. Description of the Related Art Teletext is a type of news, weather forecast,
In addition to life information such as stocks, a service for supplementing TV programs by subtitle supermarkets is currently provided on each channel. The closed caption broadcasting by teletext broadcasting is to explain the contents of a television program being broadcast at the same time by superimposing characters and graphics, and is a fun program that cannot be overlooked especially by a hearing-impaired person. However, in order to record the subtitle broadcast TV program on the VTR, the subtitle broadcast receiver is set to the broadcast channel, the subtitle broadcast program number 999 is input with the remote control, and the connection V
The TR is set in a recording mode, and generally only real-time recording was possible. If the teletext receiver is linked to a timer and makes predetermined settings, recording reservations for one program can be made. However, in this case, complicated settings are required, and recording reservations for a plurality of programs cannot be made. There was a problem.

On the other hand, the teletext system is a system in which text and graphic data are superimposed on a part of a vertical blanking period of a television video signal and broadcasted, and data such as text, alphanumeric characters and symbols are encoded. Has been sent. Therefore, in teletext, specific characters and numbers on the display screen for character signals are specified and extracted using a cursor or the like, and the codes of the extracted characters and numbers are decoded by a teletext receiver to identify and identify the contents. It is possible. That is, when a TV program information service is provided by teletext, the TV program data can be used to identify a program channel and title, a broadcast date, a start / end time, and the like by a receiver. .

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and extracts a subtitle broadcast TV program from teletext TV program information, stores it in a data memory, and stores the desired data in the data memory. The present invention provides a teletext receiver in which a TV subtitle program is selected and stored in a reservation memory to make a recording reservation of a VTR.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a data extracting unit for extracting a teletext signal from an input television broadcast signal, and stores, searches, and stores received data output from the data extracting unit. A control unit for controlling reading and the like;
A display control unit for converting the read data into a video signal to be displayed on a monitor screen; a data memory for extracting and storing television program information from the received data output by the data extracting unit; A VTR control unit for generating and outputting a control signal to a connected VTR; and a VTR control unit for generating and outputting a control signal to the connected VTR.
In a teletext receiver configured to make a recording reservation of a TR, a teletext program of subtitle broadcast by teletext is extracted from teletext program information by teletext and stored in the data memory. A TV program for recording reservation is selected and stored in the reservation memory, and a control signal from the VTR control unit and a subtitle display video signal from the display control unit are connected based on the recording reservation program data in the reservation memory. The present invention provides a teletext receiver for transmitting to a VTR.

[0006]

With the above arrangement, in the teletext receiver according to the present invention, a subtitle broadcast TV program is extracted from teletext TV program information of each channel and stored in the data memory. Then, the stored TV program table is displayed on the monitor screen, the desired TV program is selected by the cursor, and stored in the reservation memory. Then, based on the television program data of the recording reservation, when the broadcast start time comes, a control signal for instructing the connected VTR to perform recording is transmitted from the VTR control unit, and a subtitle display video signal is transmitted from the display control unit. When the end time comes, the end of recording is instructed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a teletext receiver according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram of a main part of an embodiment of a teletext receiver according to the present invention. In FIG. 1, 1 is a teletext receiver main body, 2 is a monitor for displaying received data, 3 is a connected VTR, and 4 is a remote controller for outputting a remote control signal corresponding to a key operation by a user. Reference numeral 5 denotes an antenna, and reference numeral 6 denotes a tuner, which amplifies and detects the television broadcast signal of the channel designated by the channel selection unit 7, converts it into a video signal, and outputs the video signal. Reference numeral 8 denotes a data extracting unit that separates a superimposed teletext signal at a predetermined position in a vertical blanking period from the video signal and outputs an error-corrected text signal. 9 is a character generator for decoding a character signal into character data for screen display, 10 is a fixed display of the decoded character data, caption display, etc.
A display controller 11 for converting the video signal into a predetermined video signal and outputting the video signal to the monitor 2 and the VTR 3; a memory 12 for registering in advance data such as a channel number to be received, a program number of TV program information, and an identification code of a subtitle broadcast TV program; Is a data memory that extracts and stores all subtitle broadcast programs from TV program information by teletext of each channel, and 13 is a data memory
12 A reservation memory for storing the TV program data of the recording reservation selected from the subtitle broadcast TV program table stored in the memory.
A clock unit 15 for outputting time data, a VTR control unit 15 for outputting a control signal of a predetermined format for instructing the start and end of recording to the VTR 4 based on the television program data of the recording reservation stored in the reservation memory 13, 16 An input unit for detecting a remote control signal input from the remote control 4. Reference numeral 17 denotes a CPU (Central Processing Unit) which is connected to the above-described units via a bus line 18 and controls related units such as writing, searching, and reading of data in accordance with a program loaded in a program ROM 19. FIG. 2 is an example of a display screen of a television program table stored in the data memory 12. In FIG. 2, 21 is a broadcast start / end time, 22 is a code indicating a subtitle broadcast program, 23 is a title, and 24 is a broadcast channel.

Next, the operation of the teletext receiver according to the present invention configured as described above will be described. First, the TV program table information by teletext, at least to understand and identify the TV program in the teletext receiver, at least,
Station name, date, start / end time, program title, and television program data indicating whether the program is a subtitle broadcast program based on teletext based on predetermined screen display standards using characters or identification codes, and as one program for one day A character broadcast program number is set for each day of the week, and it is assumed that the program is broadcast from each channel. In addition, the program number of the TV program information of each day described above, the identification code of the subtitle broadcast program, the channel number to be received, and the like are registered in the memory 11 in advance.

Next, the operation of updating / writing subtitle broadcast television program data stored in the data memory 12 will be described with reference to the flowchart of FIG. When the time data output from the clock section 14 reaches the update / write time (step 1, YES, hereinafter abbreviated as ST), the CPU 17 sets the update / write mode and ST2.
The following control procedure is executed. First, the channel number of the reception target, the program number of the TV program information and the subtitle program identification code registered in the memory 11 are read (ST2). Then, according to the read first channel number to be received,
Instructs the tuning section 7 to output a tuning signal of the same channel,
The tuner 6 is switched to the same channel (ST3). Next, based on the program number of the TV program information and the identification code of the subtitle broadcast program, the data of the target subtitle broadcast TV program is extracted from a series of character signals from the data extracting unit 8 and stored in the data memory 12. The data is written and stored while sequentially updating the data (ST4). At the time of writing, necessary data is added to make a display screen as shown in FIG. 2, and a character signal of a predetermined format is written. When the updating / writing of all data of the first reception target channel is completed, the above-mentioned updating / writing is performed by sequentially switching to the next target channel (ST5 NO, ST3, ST4), and the last target channel is ended. (ST5, YES) to release the update / write mode.

FIG. 4 is a flowchart showing the operation of recording reservation. The remote control 4 is provided with operation keys such as “reserve”, “cursor” movement, “setting”, and “end”. Now
When the reservation key of the remote controller 4 is operated, a remote control signal by the operation is received by the input unit 16. The CPU 17 detects an input signal, sets a reservation mode, converts a subtitle broadcast TV program table stored in the data memory 12 into a display signal, and displays it on the screen of the monitor 2 as shown in FIG. 2 (ST1).
1). Next, input of the cursor key is waited, and if there is the input (ST12, YES), the display cursor is moved up and down on the screen according to the designation (ST13). Next, the input of the setting key is detected (ST14, YES), and the TV program data indicated by the cursor is written and stored in the reservation memory 13 (ST15). The above-described recording reservation operation is repeated (ST16 NO, ST12 to ST15), and the end key is detected (ST16, YES) to release the reservation mode. In the above-described recording reservation, the data to be written into the reservation memory 13 includes at least the channel number of the reserved program,
If it is composed of data such as broadcast date, start / end time, title, etc. and has a signal format that can be displayed on the screen, the reservation memory 13
Is displayed on the screen of the monitor 2 to confirm the reserved program,
Can manage cancellation, change, etc. That is, when the reservation operation is completed, the CPU 17 checks the data in the reservation memory 13 and
If there is a television program whose broadcast time is duplicated, the data of the reserved program can be displayed on the screen of the monitor 2 to notify the viewer by changing the background color of the duplicated program data.

FIG. 5 is a flowchart showing the operation of instructing the connected VTR 3 to perform recording based on the data of the recording reservation. The CPU 17 searches the reservation memory 13 to see if there is data for recording reservation (ST21), and if there is reservation data (ST21, YES), it checks whether it is the broadcast start time (ST2).
2). At the time of the broadcast start (ST22, YES), the subtitle display mode is set, and the channel selection unit 7 is set based on the reserved TV program data.
To switch the tuner 6 to the corresponding channel (ST
twenty three). Then, the VTR controller 15 generates a control signal of a predetermined format instructing the start of recording, and the display controller 10 controls the tuner 6.
To generate a video signal in which subtitles by teletext are superimposed on the video signal from the VTR 3 and send it to the connected VTR 3 (ST
twenty four). When the broadcast end time comes (ST25, YES), the VTR control unit 15 sends a control signal of a predetermined format instructing the recording completion to the VT.
R (ST26) to release the subtitle display mode.

The teletext receiver main body 1 may be of a VTR built-in type built into a VTR or an adapter type. In the case of the adapter type, transmission of the control signal to the VTR 4 may be performed by a signal cable, or may be performed using infrared rays or the like.

[0013]

As described above, in the teletext receiver according to the present invention, subtitle TV program data is extracted from teletext TV program information and stored in the data memory. By displaying the TV program guide on the monitor screen, selecting a desired TV program with the cursor, and writing the selected TV program into the reservation memory, there is an effect that the recording of the subtitle program can be reserved.

[Brief description of the drawings]

FIG. 1 is a main block diagram showing an embodiment of a teletext receiver according to the present invention.

FIG. 2 is an example of a display screen of a television program guide stored in a data memory.

FIG. 3 is a diagram illustrating updating and updating of TV program data stored in a data memory.
5 is a flowchart illustrating a writing operation.

FIG. 4 is a flowchart showing an operation of recording reservation.

FIG. 5 is a flowchart showing an operation of instructing a connected VTR to record.

[Explanation of symbols]

 1 Teletext receiver 2 Monitor 3 VTR 4 Remote controller 5 Antenna 6 Tuner 7 Tuning unit 8 Data extraction unit 9 Character generator 10 Display control unit 11 Memory 12 Data memory 13 Reserved memory 14 Clock unit 15 VTR control unit 16 Input unit 17 CPU 18 Bus line 19 Program ROM

──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. ⁷ Identification code FI H04N 7/035

Claims (2)

(57) [Claims] 1. A data extracting unit for extracting a teletext signal from an input television broadcast signal, a data memory for extracting and storing television program information from a teletext signal extracted by the data extracting unit, The read TV program information and the character release extracted by the data sampling unit
A display control unit which converts the video signal to be displayed by a transmission signal based on a monitor screen, than the display control unit, selected from the monitor screen of the television program guide created based on the television program information in the cursor display A reservation memory for storing a television program for recording reservation; a VTR control unit for generating and outputting a control signal for instructing start or end of recording to a connected VTR; the data extraction unit, data memory, display control unit, reservation memory And a control unit (CPU) for controlling the VTR control unit, wherein the teletext receiver is configured to make a recording reservation for a connected VTR using the TV program information. extracts captioned television programs stored in said data memory, from motor <br/> Nita screen program guide produced by the caption broadcasting television programs obtained by said stored A TV program for picture reservation is selected by the cursor display and stored in the reservation memory, and a control signal from the VTR control unit and subtitles from the display control unit are based on the stored TV program for recording reservation. A teletext receiver wherein a video signal for display is transmitted to a connected VTR. 2. The method according to claim 1, wherein the subtitle broadcast television program is automatically extracted by using a subtitle program identification code added to the teletext TV number data.
The teletext receiver described.