JP2523363B2 - Teletext reservation recording device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a teletext reservation recording apparatus, and more particularly to a teletext reservation recording apparatus capable of recording a plurality of pages of teletext having a series of text information. .

[Prior Art] In character broadcasting, character graphic information is transmitted in the form of a binary digital data signal by being superimposed on a vertical blanking period of a television signal and the like, and the receiving side selectively receives desired information, The digital data signal is decoded and viewed as a television screen and audio.

The teletext terminals for receiving such teletexts include a built-in teletext receiver built into the television receiver and an independent teletext receiver connected to the television receiver for reception. There is an adapter type.

Conventionally, in the case of reserved recording of a teletext, the above-mentioned teletext receiver and a video tape recorder with a program timer have been used as follows.

That is, a character page is set in advance in the teletext receiver, and the video output terminal of the teletext receiver is connected to the video input terminal of the video tape recorder. Then, the video tape recorder is switched to the external input, and the recording start time and end time are set.

[Problems to be Solved by the Invention] In the past, reserved recording of teletext was performed by the above-mentioned method, but only one text page preset in the teletext receiver can be recorded. , It was not possible to schedule-record a series of text information that is broadcast over multiple pages.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a teletext reservation recording apparatus capable of prerecording a series of text information broadcast over a plurality of pages in teletext.

[Means for Solving the Problems] A teletext reservation recording apparatus according to the present invention is capable of prerecording teletext, and at least a recording start time, a teletext channel to be recorded, and An input unit and an input unit for inputting information regarding a recording reservation including a plurality of character pages to be recorded among the character pages constituting the teletext and a plurality of switching times corresponding to the plurality of character pages to be recorded. Storage means for storing the information relating to the recording reservation input from, the time measuring means for measuring the current time, and when the current time measured by the time measuring means reaches the recording start time stored in the storage means, The channel selection means for selecting the character broadcast to be recorded based on the stored information about the recording reservation of the channel, and the recording reservation of the character page stored in the storage means. Extracting means for sequentially extracting a plurality of character pages to be recorded from the character broadcast selected by the tuning means based on the information for each switching time stored in the storage means, and a character page extracted by the extracting means. And a recording means for recording.

[Operation] In the teletext reservation recording apparatus according to the present invention, each switching time of a plurality of text pages forming a teletext to be recorded is input as reservation information together with the recording start time and the teletext channel to be recorded. . When the current time reaches the recording start time, a teletext to be recorded is selected, and a plurality of text pages to be recorded are sequentially extracted from the selected teletext, but those text pages are not input. It is switched based on the switching time. Therefore, a plurality of character pages constituting the character broadcast to be recorded are sequentially recorded at each reserved switching time.

[Embodiment of the Invention] FIG. 1 is a block diagram showing a characteristic portion of an embodiment of the present invention. Next, with reference to FIG. 1, an electrical configuration of an embodiment of the present invention will be described.

The teletext reservation recording device 1 is provided with a CPU 2. CP
A key input device 3, a channel selection circuit 4, a character multiplex circuit 5, a changeover switch 6, a recording control device 7, a memory 8 and a clock circuit 9 are connected to U2.

The key input device 3 is for inputting information relating to recording reservation such as recording start time, recording end time, selected channel, recorded character page and character page switching time. The recording start time is a scheduled time to start recording, and the recording end time is a scheduled time to finish recording. The selected channel is the television channel to receive. The recorded character page is a page to be recorded among a series of character information broadcast over a plurality of pages. Multiple pages can be designated as the recording character page. The character page switching time is the time to switch the recorded character page to the next character page. This switching time can be specified collectively for all character pages, or can be specified for each page.

The channel selection circuit 4 performs channel selection according to a channel selection command from the CPU 2 and outputs a video signal. The character multiplex circuit 5 extracts a character video signal transmitted from the video signal while being superimposed in the vertical blanking period in response to a character page command from the CPU 2. The change-over switch 6 is for changing the signal given to the video tape recorder (VTR) to a video signal or a character video signal. The change-over switch 6 switches so that a character video signal is output in response to a character output command from the CPU 2. The recording control device 7 is
The recording control of the video tape recorder is performed according to the recording command from the CPU2. The clock circuit 9 measures the current time. The memory 8 is a RAM (random access memory) for storing the storage contents shown in FIG. 2 later.
And a ROM (read only memory) for storing the operation program of the CPU 2 based on the flowchart shown in FIG. 3 later.

FIG. 2 is an illustrative view showing a part of the memory shown in FIG. In FIG. 2, area 81 is an area for storing a reservation execution mode flag. If the reservation execution mode flag is "1", it indicates that the reserved recording is being executed, and if it is "0", it means that the recording is not being executed.
Area 82 is an area for storing a character recording mode flag. If the character recording mode flag is "1", it means that the character recording is set to be recorded, and if it is "0", it means that the character broadcasting is not set.

Area 83 is an area for storing a scheduled recording start time, and area 84 is an area for storing a scheduled recording end time. Area 85 is an area for storing channels to be selected. Areas 861 to 86n are areas for storing character pages to be recorded and switching times. Area 87 is a buffer area for temporarily storing input / output data,
It is a work area including an area for storing intermediate results of calculations. Areas 83 to 85 and areas 861 to 86n
Are preferably provided in a plurality of sets so that a plurality of programs can be recorded.

FIG. 3 is a flow chart for explaining the operation of the embodiment of the present invention. Next, the operation of the embodiment of the present invention will be described in detail with reference to FIGS.

A user who intends to record a teletext at a predetermined time by using the teletext reservation recording device operates the key input device 3 to start the recording start time, the recording end time of the desired teletext, and the teletext. Input each data of channel, character page to be recorded and character page switching time. When there are a plurality of character pages to be recorded, the data input of the character page and the switching time is repeated. The data input from the key input device 3 is given to the CPU 2, and is stored in a predetermined area of the memory 8 by the CPU 2.

Next, the operation of executing the reserved recording will be described.

First, in step S1 (abbreviated as S1 in the figure), it is determined whether or not the reservation execution mode flag is "1". Now, assuming that the program is on standby until the recording start time, since the reservation execution mode flag is "0", the process proceeds to step S2. In step S2, it is determined whether or not there is a recording reservation. If the predetermined data is stored in areas 83 to 85 and areas 861 to 86n, it is determined that there is a recording reservation, and if the predetermined data is not stored, it is determined that there is no recording reservation. If the predetermined data is not stored, the process returns to step S1. In this case, however, since the predetermined data regarding the recording reservation is stored, the process proceeds to step S3. In step S3, the current time given by the clock circuit 9 is compared with the start time stored in the area 83 to determine whether or not the start time has come. If it is not the start time, the process returns to step S1, but if it is the start time, the process proceeds to step S4. When the recording standby time ends and the recording start time comes, the reservation execution mode flag is set to "1" in step S4.

Next, in step S5, a channel selection command is issued and the CP
The tuning data stored in the area 85 is output from U2 to the tuning circuit 4. Subsequently, in step S6, it is determined whether or not a teletext recording reservation is made. The presence / absence of the character broadcast recording reservation may be determined by whether or not the character page data is stored in the areas 861 to 86n. In addition, when inputting information relating to the recording reservation from the key input device 3, the operator inputs an instruction as to whether or not to make a recording reservation for the teletext.
The determination may be made based on whether or not the instruction is input. If the recording reservation of the teletext is not made, the process proceeds to step S1, but if the recording reservation is made, the process proceeds to step S7, and the character recording mode flag is set to "1". In response to this, the changeover switch 6 is changed over so that the character video signal from the character multiplex circuit 5 is given to the video tape recorder (VTR). Subsequently, in step S8, the area 861
The initial value of the character page is read from and is given to the character multiplexing circuit 5. As a result, the character video signal decoded by the character multiplexing circuit 5 is applied to the video tape recorder (VTR) via the changeover switch 6 and recorded.

Subsequently, in step S9, the switching time is read from the area 861 and set in a predetermined area of the work area 87. During the recording, this switching time is counted down. Then, the process proceeds from step S9 to step S1. In step S1, it is determined again whether or not the reservation execution mode flag is "1". Since the reservation execution mode flag is set to "1" now, steps S1 to S1
Go to 0. In step S10, the current time given by the clock circuit 9 is compared with the end time stored in the area 84,
It is determined whether or not the end time has come. If the end time has not come, the process proceeds to step S11, and it is determined whether or not the character recording mode is set. Since the character recording mode flag of area 82 is "1" now, it is determined that the character recording mode is set, and the process proceeds to step S12. In step S12, it is determined whether or not a plurality of character pages are reserved for recording. If a plurality of character pages are not stored in the areas 861 to 86n, the process proceeds to step S1, while if a plurality of character pages is stored, the process proceeds to step S13. now,
Consider the case where multiple character pages are stored. In step S13, it is determined whether or not the counted down switching time has become "0". If the time is not "0", that is, if the predetermined switching time has not elapsed, the process proceeds to step S1, but if the predetermined switching time has elapsed, the process proceeds to step S14. In step S14, a character page is read from area 862, which is the area next to area 861, in order to switch the character page, and is given to character multiplexing circuit 5. Then, in step S15, the character page switching time is updated. .

In this way, recording is continued, and a plurality of reserved character pages are switched one after another at each switching time from the recording start time to the recording end time to record a character broadcast.
When it is determined in step S10 that the recording end time has come, the process proceeds to step S16 and the area 81
Reserved execution mode flag of is set to "0", and then
The character recording mode flag in area 82 is set to "0".

[Effects of the Invention] As described above, according to the present invention, a channel of a teletext to be recorded and a switching time of each text page forming the teletext are input and stored as the information relating to the video recording reservation. Since the character pages to be recorded are switched at each switching time, a plurality of character pages constituting the character broadcast to be recorded can be reserved and recorded.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a characteristic part of an embodiment of the present invention. FIG. 2 is an illustrative view showing a part of the memory shown in FIG. FIG. 3 is a flow chart for explaining the operation of the embodiment of the present invention. In the figure, 1 is a teletext reservation recording device, 2 is a CPU, 3
Is a key input device, 4 is a channel selection circuit, 5 is a character multiplex circuit, 6
Is a changeover switch, 7 is a recording control device, 8 is a memory, and 9 is a clock circuit.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication H04N 7/035

Claims (1)

(57) [Claims] 1. A teletext reservation recording device capable of teletext reservation recording, wherein at least a recording start time, a teletext channel to be recorded, and a text page constituting the text broadcast are recorded. Input means for inputting information on a recording reservation including a plurality of character pages to be recorded and a plurality of switching times corresponding to the plurality of character pages to be recorded, and storing information on the recording reservation input from the input means Storage means, clocking means for clocking the current time, and when the current time measured by the clocking means reaches the recording start time stored in the storage means, recording reservation of the channel stored in the storage means Channel selection means for selecting the character broadcast to be recorded based on the information regarding the information regarding the recording reservation of the character page stored in the storage means. Extracting means for sequentially extracting a plurality of character pages to be the recording from the teletext that is tuning for each switching time stored in said storage means by said channel selecting means Zui,
And a teletext reservation recording apparatus, comprising a recording means for recording the text page extracted by the extraction means.