JP2501838B2 - Teletext receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention automatically saves or composite-records a teletext program designated and registered by a viewer in advance even when the main power supply is off. The present invention relates to a teletext receiving device in which viewing is prevented.

(Prior art) Currently, telecast programs such as news are sent out using the vertical blanking period of commercial television broadcasts and displayed on a CRT instead of or overlaid on ordinary television programs. The teletext service has been started.

This teletext includes a large number of programs that can be arbitrarily selected by the user, and one program is generally composed of a plurality of pages. Since the teletext data forming each page of each program is discretely sent out in the form of a packet, the processor in the receiving device edits each program by extracting and assembling the above packets, and editing the latest program. The old teletext data in the data memory is updated with the teletext data. Further, in parallel with the loading of teletext data into this data memory, the loaded program data designated by the user is selectively read out from the data memory, decoded and supplied to the display section such as a CRT. .

In addition, some teletext programs include subtitle programs that overlay Japanese translations on TV programs such as Western movies, and materials such as cooking materials that are requested by viewers during television programs. There is also a program that is broadcast and displayed in synchronization with the original television program, such as a complementary program that is displayed by overlapping.

(Problems to be Solved by the Invention) In the teletext receiver, when the main power is turned on,
First, the CPU starts capturing teletext data. This capture takes an average of several tens of seconds, during which the teletext screen is not displayed. Therefore, there is a problem that the user feels frustrated.

Also, in a program that conveys information that changes from moment to moment, such as a stock price program, even if you try to know the price movement by comparing old data several hours ago with the latest stock price data, the old teletext data in the data memory will have the latest text. Since it was deleted by overwriting the broadcast data, there was the inconvenience that it could not be referenced. In addition to the stock price, there are many types of information provided by teletext that change over time has an important meaning. There is a problem that it is not possible to fully utilize the usefulness of teletext because it can be grasped only in pieces, rather than in pieces.

In addition, programs that are broadcast in synchronization with television programs such as subtitle programs and supplementary programs can be recorded by VT with a timer recording function.
When trying to save R (video tape recorder) by synchronizing it with the teletext receiver, for example, an unexpected broadcast that could not be expected at the beginning, such as an extension of the broadcast time of night game relay or interruption of a temporary news program If a schedule change occurs, the access target will be different between the VTR that starts timer recording when the specified time arrives and the teletext receiving device that extracts the teletext program specified by the program number. There was a problem that the program you intended to save could not be recorded completely.

(Means for Solving Problems) The present invention solves the above problems, and includes a teletext data storage memory for storing teletext data of a received teletext program, and a character designated in advance for storage. It operates by receiving a backup power supply and a memory for storing the identification number with a backup function in which the identification number of the broadcast program is registered,
Each time a teletext program whose identification number is registered in the identification number storage memory is received, the teletext data of the teletext program discretely transmitted in a packet format is edited,
The sub-processor for updating the stored contents of the teletext data storage memory for each program by the edited teletext data, and the teletext data taken into the teletext data storage memory by the main power supply. It is characterized by comprising a main processor for selectively reading, decoding, and displaying a screen-designated one among them.

In addition, the sub-processor transfers the teletext data, which has already been captured by the teletext data storage memory, to an external storage device each time a predetermined time arrives, and arranges the programs in time series. It is characterized in that the stored teletext data is externally stored.

Further, the present invention provides a teletext data storage memory for storing teletext data of a received teletext program, and an identification number storage memory with a backup function in which the identification number of a teletext program designated to be saved in advance is registered. When a teletext program whose identification number is registered in the identification number storage memory is received, the main power source is turned on and the externally connected recording means is activated. A sub-processor that edits the teletext data of the teletext program discretely transmitted in a packet format, and updates the storage content of the text broadcast data storage memory for each program with the edited teletext data, Upon receiving the main power supply, the teletext data stored in the teletext data storage memory is selectively read out from the teletext data designated for recording. Encoding, and is characterized in that it comprises a main processor for recording and outputs the synthesized with the corresponding television program.

(Example) Hereinafter, the Example of this invention is described with reference to drawings. FIG. 1 is a block diagram showing an embodiment of a television receiver to which the teletext receiver of the present invention is applied.

In FIG. 1, a main processor 1 that controls the entire television receiver is operated by being supplied with a main power source. In a remote control standby state in which the main power source is cut off, the main processor 1 is authorized to operate. Delegate. Sub processor 2
Is an auxiliary processor for controlling the device in response to a remote control command in the remote control standby state where the main processor 1 is originally inactive, but here, it operates when the standby power is turned on. , Has a function of editing teletext data for a teletext program designated by a user and controlling the apparatus so that the latest teletext data can be always called. The teletext data is written in a large-capacity teletext data storage memory 3 that can store the teletext data for each program, and is periodically transferred to an external storage device 13, or is synthesized and recorded on a VTR or the like.

The television broadcast program selected and received by the tuner 5 is sent to the CRT 7 through the synthesizing / switching circuit 6 as it is for the normal broadcast video signal, but the teletext data extracting circuit 4 extracts the teletext data. After that, it is once stored in the teletext data storage memory 3, and then sent to the CRT 7 via the main processor 1 and the synthesis / switching circuit 6.

Reference numeral 8 is a clock / timer circuit for generating an operating clock for the main processor 1 and the sub-processor 2 or for measuring a timer time. However, it has a large capacity as a backup power source so that it can operate even in a remote control standby state. A capacitor 18 is added. Further, in order to operate the sub-processor 2 and the like while waiting for the remote control, the power supply circuit 9
The auxiliary power-on switch 12 is attached to the. When the standby power-on switch 12 is closed, a small amount of AC power is supplied to the power supply circuit 9, and the rectified and stabilized DC standby power supply is connected to the sub-processor 2 via the standby power supply line 15 and other teletext data. It is supplied to various circuits necessary for capturing a teletext program, such as the memory 3 for storage, the teletext data sampling circuit 4, the tuner 5, and the like. 16 is a main power supply line for supplying power to the main processor 1 and CRT 7, and 17 is a VT
It is an AC power supply line for supplying power to R.

The input interface circuit 10 receives a main power-on command issued by a user via a remote controller (not shown), and controls the power supply circuit 9 to the sub-processor 2 connected via the system bus 11. Send out a signal. The system bus 11 connects the main processor 1, the sub-processor 2 and peripheral circuits by a bus, and the peripheral circuits include an external storage device 13 and a backup memory 14.
The external storage device 13 is composed of, for example, a flexible disk unit or the like, and records a designated storage program read from the teletext data storage memory 3 on a flexible disk with an identifier such as a storage date and time or a serial number added thereto. The backup memory 14 constitutes a substantially non-volatile memory for storing an identification number by always backing up with a large-capacity capacitor 19, and identifies a teletext program designated as a storage target such as a stock price broadcast. The paired data of the number and the designated storage time, or the identification number of the teletext program to be recorded in combination with the corresponding television program such as a subtitle program or a complementary program is registered.

A VTR is connected to the television receiver incorporating the teletext receiver, and the power supply circuit 9 is connected via the AC power supply line 17 with the arrival of the timer recording time.
Power is supplied from and the output of the synthesizing / switching circuit 6 is recorded.

Here, when the user closes the standby power-on switch 12, a small amount of AC power is supplied to the power supply circuit 9. The DC standby power source, which is rectified by the power source circuit 9 and stabilized, passes through the standby power line 15 to the subprocessor 2, the teletext data storage memory 3, the teletext data sampling circuit 4, the tuner 5, and the like. Are supplied to various circuits required for capturing. The tuner 5, which has been started by receiving the supply of the standby power, selects and receives the television signal of the designated channel, and the teletext data sampling circuit 4 extracts the teletext data in the packet format which is superimposed on each vertical blanking period. .

Sub-processor 2 operated with the supply of standby power
Receives the packet-shaped discrete teletext data extracted by the teletext data sampling circuit 4 via the system bus 11, and uses the work area in the teletext data storage memory 3 to generate continuous data for each program. The teletext data that has been edited and edited is stored in a predetermined capture area in the teletext data storage memory 3. The teletext data taken into the teletext data storage memory 3 is updated by overwriting with the latest teletext data when new teletext data for the program is received and the editing by the sub-processor 2 is completed. Being done. Therefore, only the latest teletext data for each teletext program is stored in the capture area in the teletext data storage memory 3.

The sub processor 2 has a memory 3 for storing teletext data.
At the same time when the teletext data is taken in, the designated storage time registered in the backup memory 14 is continuously output at a predetermined cycle, and this is collated with the current time managed by the clock / timer circuit 8. When the result of the time collation indicates that the designated save time matches the present time, the sub-processor 2 supplies power from the power supply circuit 9 to the external storage device 13 and also executes the designated save program having the identification number stored in pair with the designated save time. The data is read from the teletext data storage memory 3, added with an identifier such as storage date and serial number, supplied to the external storage device 13, and recorded on the flexible disk. From the teletext data recorded in the external storage device 13 in time series, the user can know not only the latest information, but also the state of change over time. Moreover, since the teletext data is coded data suitable for digital data processing before decoding, data analysis can be easily performed by data processing using a personal computer or the like.

When a main power-on command is issued using a remote controller (not shown), the input interface circuit
The sub processor 2 which receives the closing command via 10 controls the power supply circuit 9, and supplies the main power supply to the circuits required for display such as the main processor 1 and the CRT 7 via the main power supply line 16.
Upon receiving the main power supply, the main processor 1 immediately starts its operation, reads out the teletext data of the first page of the program "0" (table of contents) stored in the teletext data storage memory 3, and reads it. Is supplied to the synthesizing / switching circuit 6 while being decoded, and is displayed on the CRT 7. Therefore, when a page break command or a page designation command is issued from the remote controller, the main processor 1 receiving the command via the input interface circuit 10 causes the text broadcast data of the designated page to be stored in the text broadcast data storage memory 3. The data is selectively read, decoded, and supplied to the synthesis / switching circuit 6.

On the other hand, if the display command received via the input interface circuit 10 relates to the stored program,
The main processor 1 reads the teletext data of the program stored in the external storage device 13, decodes it, and displays it on the screen of the CRT 7 via the synthesis / switching circuit 6.
As a result, the user can know not only the latest information but also the state of change with time leading to it. In addition to these functions, the main processor 1 switches the display from the teletext program to the television program, selects the television program and adjusts the volume, and further, the backup memory 14
Performs various processes such as registration of the identification number to the VCR and registration of the identification number of the teletext program scheduled to be recorded by the VTR.

When a main power supply disconnection command is issued from the remote controller, the sub-processor 2 which receives the disconnection command via the input interface circuit 10 controls the power supply circuit 9 to supply the main processor 1 and CRT 7 to the circuits necessary for display. The power supply is stopped and the operation of these circuits is stopped.

As described above, according to the teletext receiving device, the function of the sub-processor 2 which is usually provided originally to turn on the main power source in response to a remote control command is expanded to take in teletext data. By saving the data, it is possible to capture teletext data even in the remote control standby state where the main power is not turned on. Therefore, the text broadcasting can be performed immediately after the main power is turned on without significantly increasing the manufacturing cost. It is possible to display the program, and it is possible to eliminate the drawback of the conventional device in which the user feels frustrated due to the delay in the display. Further, since the teletext data is taken in by the sub-processor 2 continuously over the entire period of turning on the standby power, the teletext program whose identification number is registered in advance always has the latest teletext data immediately. Can be displayed on the screen.

Further, the sub-processor 2 transfers the teletext data, which has already been captured by the teletext data storage memory 3, to the external storage device 13 every time when a predetermined time arrives, and the time series of each program is set. Since the arranged teletext data is externally stored, a large amount of teletext data that cannot be stored in the teletext data storage memory 3 due to its capacity is externally stored as teletext data in a time-sequentially arranged state. can do.

In addition, when the above teletext receiving device wants to save the television broadcast in which the teletext data is combined, the identification recording number of the program to be recorded is registered in the backup memory 14 for the composite recording using the VTR. Is possible. Each time the text broadcast is received, the sub-processor 2 designated for the synthetic recording collates the identification number of the broadcast program with the identification numbers of the subtitle program and the complementary program registered in the backup memory 14. If the identification numbers match as a result of the collation, the sub processor 2 controls the power supply circuit 9 to supply the main power to the main processor 1 via the main power supply 16,
To start. Further, before and after this, the power supply circuit 9 is controlled to supply power to the VTR via the AC power supply line 17, and at the same time, select a compatible television program to be combined with the subtitle program or the character broadcast program of the complementary program to the tuner 5. Let

On the other hand, the main processor 1 reads out the teletext data of the teletext program having the identification number designated by the sub-processor 2 from the teletext data storage memory 3, decodes it, and supplies it to the synthesizing / switching circuit 6. The synthesizing / switching circuit 6 synthesizes the decoded data such as the subtitle program and the complementary program supplied from the main processor 1 and the corresponding television program supplied from the tuner 5, and supplies the synthesized data to the VTR for recording.

As a result, for example, a subtitle program that overlays Japanese translation lines on a television program such as Western movies, or a supplementary display that overlays a material list, etc. according to the viewer's request during a television program such as cooking. A television program that is combined with a teletext program such as a program can be provided for recording on the condition that the program is actually broadcasted, not by specifying the time. For this reason, it is possible to reliably record a subtitle program or a complementary program whose broadcast time is shifted from the scheduled time due to various circumstances together with the teletext data.

In the above embodiment, the stored program is not decoded but is stored in the external storage device 13 as it is as coded data. However, the main processor 1 is activated to perform the decoding at the time of the storage, and the decoding is completed. The teletext data may be stored in the external storage device 13.

Further, when the program data to be stored is a relatively small amount such as the result of a night game, it can be stored in a predetermined storage area in the teletext data storage memory 3 instead of the external storage device 13.

Furthermore, a configuration has been illustrated in which the character storage data that has been taken into the teletext data storage memory 3 is stored in the external storage device 13 when the designated storage time arrives. It is also possible to make the teletext data that is first captured in 3 stored.

Further, in the embodiment, the description has been given by taking the teletext receiving device integrated with the television receiver as an example, but the present invention can be similarly applied to the adapter type teletext receiving device added to the television receiver. It is a thing.

(Effects of the Invention) As described above, according to the present invention, each time the sub-processor that operates by receiving the supply of the standby power supply receives the teletext program whose identification number is registered in the memory for storing the identification number. Since the teletext data of the teletext program discretely transmitted in the packet format is edited, and the stored content of the teletext data storage memory is updated for each program by the edited teletext data, A remote controller that has not been turned on by expanding the functions of the sub-processor, which is normally provided to turn on the main power in response to a remote control command, and by capturing and saving teletext data. Even in the standby state, it is possible to capture teletext data, so that the production of teletext programs can be started immediately after the main power is turned on without increasing the manufacturing cost significantly. It is possible to solve the problem of the conventional device that the user feels frustrated due to the delay of the display, and the teletext data is taken in by the sub-processor continuously throughout the entire period of turning on the standby power. Therefore, for a teletext program whose identification number is registered in advance, the latest teletext data can always be immediately displayed on the screen, which is an excellent effect.

Further, the sub-processor transfers the teletext data, which has already been taken in by the teletext data storage memory, to an external storage device each time a predetermined time arrives, and the subtext data is arranged in time series for each program. Since the teletext data that has been stored is stored externally, a large amount of teletext data that cannot be stored in the teletext data storage memory due to the limited capacity can be transferred to an external storage device such as a flexible disk unit or the like. For the same teletext program that is broadcast every other hour, the teletext data can be externally stored in a time-sequentially arranged state, so that for the broadcast program such as stock price broadcast, the user can obtain only the latest information. Not only that, but also the state of changes over time can be known, and the teletext data before decoding is a code suitable for digital data processing. Since it is composed of digitized data, it is possible to easily analyze the data by transferring the data to an external storage device and then using a personal computer to process the data. Will be further expanded to enhance the utility value of teletext and contribute to its spread.

Further, according to the present invention, each time a teletext program registered with an identification number is received, the sub processor turns on the main power source and activates the externally connected recording means, and the main power source is supplied. Since the processor is configured to selectively read and decode the teletext data that has been designated to be recorded from the teletext data that has been taken into the teletext data storage memory, the processor is configured to synthesize it with the corresponding television program and record and output it. Character broadcast programs such as subtitle programs that display Japanese translations overlaid on television programs such as, and supplementary programs that display material lists overlaid on television programs such as cooking when viewers request them. It is possible to record a television program that is combined with the program on the condition that the program actually starts broadcasting, not by specifying the time. Of a such as subtitles program and complementary programs that deviates from the scheduled broadcast time under certain circumstances, the effect of the like can be recorded securely together with the character broadcasting data.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a television receiver to which the teletext receiver of the present invention is applied. 1 ... Main processor 2 ... Sub-processor 3 ... Character broadcast data storage memory 4 ... Character broadcast data sampling circuit 5 ... Tuner 6 ... Synthesis / switching circuit 7 ... CRT 8 ... Clock / timer circuit 9 ...... Power supply circuit 10 …… Input interface circuit 11 …… System bus 12 …… Spare power-on switch 13 …… External storage device 14 …… Backup memory 15 …… Spare power supply line 16 …… Main power supply line 17 …… AC supply Electrical wire

Claims (3)

(57) [Claims] 1. A teletext data storage memory for storing teletext data of a received teletext program, and an identification number storage memory with a backup function in which an identification number of a predesignated storage program is registered. Whenever a teletext program having an identification number registered in the identification number storage memory is received, the teletext data of the teletext program discretely transmitted in a packet format is received. And a sub-processor that updates the stored contents of the teletext data storage memory for each program by the edited teletext data and a main power supply, and is taken into the teletext data storage memory. A main processor for selectively reading, decoding, and displaying screen-displayed ones of the teletext data that has been designated for display. That character broadcast receiver. 2. The sub-processor transfers to the external storage device the teletext data which has already been taken into the teletext data storage memory each time a predesignated time arrives, and the subseries is time-series for each program. The teletext receiving apparatus according to claim 1, wherein the teletext data arranged in a serial manner is externally stored. 3. A teletext data storage memory for storing teletext data of a received teletext program, and an identification number storage memory with a backup function in which an identification number of a predesignated teletext program is registered. When receiving a teletext program in which an identification number is registered in the identification number storage memory, the main power source is turned on and an externally connected recording means is activated. A sub-processor that edits the teletext data of the teletext program discretely transmitted in a packet format, and updates the stored contents of the teletext data storage memory for each program with the edited teletext data. Upon receiving the power supply, of the teletext data stored in the teletext data storage memory, the designated one for recording is selectively read out and decoded. And, teletext receiving apparatus characterized by comprising a main processor for recording and outputs the synthesized with the corresponding television program.