JPH02228181A - Reserving and video recording device for character broadcasting - Google Patents

Abstract

PURPOSE:To reserve video recording of a series of character information stored in plural pages by inputting and storing plural character pages and the character page switching time and switching the character page to be recorded at intervals of the switching time. CONSTITUTION:When recording of character broadcast is reserved, a character recording mode flag is set to '1', and a changeover switch 6 is switched by this setting so that the character video signal from a character multiplexing circuit 5 is given to a video tape recorder VTR. The initial value of character pages is read out and is given to the circuit 5. The character video signal decoded by the circuit 5 is given to the VTR through the switch 6 and is recorded. Recording is continued in this manner, and plural reserved pages are successively switched at intervals of the switching time from the start time to the end time of recording to record the character broadcast.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a teletext reservation recording device, and more particularly to a teletext reservation recording device that can record multiple pages of teletext having a series of text information. .

[Prior Art] In teletext broadcasting, text and graphic information is transmitted in the form of binary digital data signals superimposed on the vertical retrace period of a television signal, and on the receiving side, the desired information is selectively received and received. The digital data signal is decoded and viewed as a television screen and audio.

Teletext terminals for receiving such teletext broadcasts include built-in teletext receivers built into the television receiver, and independent teletext receivers connected to the television receiver for reception. There is an adapter type.

Conventionally, when a teletext broadcast is scheduled to be recorded, the teletext receiver described above and a video tape recorder with a program timer are used in the following manner.

In other words, a text page is set in advance on the teletext receiver,
Connect the video output terminal of the teletext receiver to the video input terminal of the video tape recorder. Then, the video tape recorder is switched to external input, and the recording start time and end time are set.

[Problems to be Solved by the Invention] Conventionally, the above-mentioned method was used to perform scheduled recording of teletext broadcasts, but it was only possible to record one text page preset in the teletext receiver. , it was not possible to schedule recording of a series of text information broadcast over multiple pages.

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

[Means for Solving the Problems] The teletext reservation recording device according to the present invention has a system for inputting information regarding a recording reservation including at least a recording start time, a plurality of text pages to be recorded, and a switching time for switching between text pages. an input means, a storage means for storing information regarding the recording reservation inputted from the input means, a clock means for measuring the current time, and a current time measured by the clock means at the recording start time stored in the storage means. a character page extraction means for extracting a character page to be recorded from the received teletext broadcast based on the stored content of the storage means; a recording means for recording the character page extracted by the character page extraction means; The apparatus includes a character page switching means for switching the character page to be recorded in response to the elapse of a switching time from the start of recording of the character page.

[Function] The teletext reservation recording device according to the present invention inputs and stores a plurality of text pages and a switching time for switching the text pages as information regarding the recording reservation, and switches the text page to be recorded at each switching time. , it is possible to schedule recording of a series of text information broadcast over multiple pages.

[Embodiment of the Invention] FIG. 1 is a block diagram showing characteristic parts of an embodiment of the invention. Next, referring 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.

The CPU 2 includes a key input device 31, a channel selection circuit 41, a character multiplex circuit 5. Changeover switch 6, recording control bag flF7. A memory 8 and a clock circuit 9 are connected.

The key human power device 3 is the recording start time and recording end time.

This is for inputting information related to recording reservations, such as the selected channel, recorded text page, and text page switching time. The recording start time is the scheduled time to start recording, and the recording end time is the scheduled time to end recording. The selected channel is the television channel to receive.

The recorded text page is a page to be recorded out of a series of text information broadcast over multiple pages. Multiple pages can be specified as recorded text pages. The character page switching time is the time to switch from a character page to be recorded to the next character page. The same switching time can be specified for all character pages at once, or can be specified for each page.

The channel selection circuit 4 selects a channel in response to a channel selection command from the CPU 2 and outputs a video signal. The character multiplexing circuit 5 extracts, from the video signal, a character video signal that is transmitted superimposed on the vertical blanking period in response to a character page command from the CPU 2. The changeover switch 6 is used to switch the signal applied to a video tape recorder (VTR) to a video signal or a text video signal.

The changeover switch 6 is switched in response to a character output command from the CPU 2 so that a character video signal is output. The recording control device 7 controls recording of the video tape recorder in response to a recording command from the CPU 2. The clock circuit 9 measures the current time. The memory 8 is a RAM (random) that stores the memory contents shown in FIG.
ROM which stores the operating program of the CPU 2 based on the flow diagram shown in FIG. 3 later.
(read-only memory).

FIG. 2 is an illustrative diagram showing a part of the memory shown in FIG. 1. In FIG. 2, area 81 is an area for storing a reservation execution mode flag. The reservation execution mode flag is “
If it is 1°, it indicates that scheduled recording is being executed, and if it is "0#, it indicates that recording is not being executed. Area 82 is an area that stores the text recording mode flag. .

If the text recording mode flag is "1", it indicates that the text broadcasting is set to be recorded, and if it is "0", it indicates that it is not set.

Area 83 is an area for storing the scheduled recording start time, and area 84 is an area for storing the 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 work area that includes a buffer area for temporarily storing input/output data, etc., and an area for storing intermediate results of calculations. Note that a plurality of sets of areas 83 to 85 and areas 861 to 86n are preferably provided so that a plurality of programs can be recorded.

FIG. 3 is a flow diagram for explaining the operation of one embodiment of the present invention. Next, referring to Figures 1 to 3,
The operation of one embodiment of the present invention will be described in detail.

A user who intends to record a teletext broadcast at a predetermined time using the teletext reservation recording device operates the key human power device 3 to set the recording start time, recording end time, and time of the desired teletext broadcast.
The teletext channel.

Input each data of the character page to be recorded and the character page switching time. If there are a plurality of character pages to be recorded, data input of character pages and switching times is repeated. The data input from the key human power device 3 is sent to the CPU
2 and stored in a predetermined area of the memory 8 by the CPU 2.

Next, the operation of executing scheduled recording will be explained.

First, in step Sl (abbreviated as Sl in the figure), it is determined whether the reservation execution mode flag is "1" or not. Assuming that the system is currently waiting until the recording start time, the reservation execution mode flag is 0, so the process advances to step S2.In step S2, it is determined whether or not there is a recording reservation.

If 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, but in this case, since the predetermined data regarding the recording reservation is stored, the process returns to step S1.
Proceed to step 3.

In step S3, the current time given by the clock circuit 9 and the start time stored in the area 83 are compared to determine whether the start time has arrived. If the start time has not come, the process returns to step S1, but if the start time has arrived, 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 C
The tuning data stored in the area 85 is output from the PU 2 to the tuning circuit 4. Subsequently, in step S6, it is determined whether or not a teletext recording reservation has been made. Areas 861 to 86n are available for teletext recording reservations.
The determination may be made based on whether character page data is stored in the page. Furthermore, when inputting information regarding the recording reservation from the key human-powered device 3, an instruction may be input as to whether or not to make a teletext recording reservation, and the determination may be made based on whether or not the instruction is input. If a teletext recording reservation has not been made, the process advances to step S1, but if a video recording reservation has been made, the process advances to step S7, where the character recording mode flag is set to "1". Accordingly, the selector switch 6 switches the character video signal from the character multiplexing circuit 5 to a video tape recorder (VT).
R). Next, step S
8, the initial value of the character page is read from the area 861 and applied to the character multiplexing circuit 5.

As a result, the character video signal decoded by the character multiplexing circuit 5 is applied to a video tape recorder (VTR) via the changeover switch 6 and is recorded.

Subsequently, in step S9, the switching time is read from the area 861 and set in a predetermined area of the work area 7. During recording, this switching time is counted down. Subsequently, the process advances from step S9 to step S1. In step S1, it is determined again whether the reservation execution mode flag is '1'. Since the reservation execution mode flag is now set to '1', the process advances from step S1 to step SIO. Step S10 , the current time given by the clock circuit 9 and the end time stored in the area 84 are compared, and it is determined whether the end time has come. If the end time has not come, the process advances to step Sll and character recording is started. It is determined whether it is in the mode or not.Now,
Since the text recording mode flag in the area 82 is "1°," it is determined that the text recording mode is set, and step S1
Proceed to step 2. In step S12, it is determined whether 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 advances to step S1; on the other hand, if a plurality of character pages are stored, the process advances to step 813. now,
Consider a case where multiple character pages are stored. In step S13, it is determined whether the counted down switching time has reached "O". The time is “01”
If not, 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. Step S14
In order to switch character pages, a character page is read from area 862, which is the next area after area 861, and provided to character multiplexing circuit 5, and then in step S1.
In step 5, 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 every time the switching time elapses from the recording start time to the recording end time, and the teletext is recorded. When it is determined in step S10 that the recording end time has come, the process advances to step S16, where the reservation execution mode flag in area 81 is set to "0", and then the text recording mode flag in area 82 is set to "0". Set to “0”.

[Effects of the Invention] As described above, according to the present invention, a plurality of text pages and a switching time for switching text pages are input and stored as information regarding recording reservation, and text pages to be recorded at each switching time are recorded. Since the switching is made, it is possible to reserve recording of a series of character information stored over a plurality of pages.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the characteristic parts of an embodiment of the present invention. FIG. 2 is an illustrative diagram showing a part of the memory shown in FIG. 1. FIG. 3 is a flow diagram for explaining the operation of one embodiment of the present invention. In the figure, 1 is a teletext reservation recording device, 2 is a CPU,
3 is a key manual device, 4 is a channel selection circuit, 5 is a character multiplexing circuit,
6 is a changeover switch, 7 is a recording control device, 8 is a memory, 9
indicates a clock circuit. Figure 82

Claims (1)

[Claims] A teletext reservation recording device capable of reservation recording of teletext broadcasts, wherein information regarding the recording reservation including at least a recording start time, a plurality of text pages to be recorded, and a switching time for switching between the text pages is input. storage means for storing information regarding the recording reservation inputted from the input means; timekeeping means for measuring the current time; and recording start when the current time measured by the timekeeping means is stored in the storage means. Text page extraction means for extracting a text page to be recorded from the received teletext broadcast based on the memory contents of the storage means when the time comes; and a recording for recording the text page extracted by the text page extraction means. and text page switching means for switching a text page to be recorded in response to the elapse of the switching time from the start of recording of the text page.