JPS63274278A - Teletext receiver - Google Patents

Abstract

PURPOSE:To improve the operability of a key by detecting a property at first display processing when a lump of program is received and immediately processing a next page for individual page request according to the result of the detection of the property after the head page is requested again by the page request. CONSTITUTION:When a teletext program is requested by a key processing part 2, by a control part 10, the requested teletext program is found among teletext data fetched in a character signal fetching part 1 and fetched in the buffer memory in the control part 10. Moreover, when this program is the lump of program, a lump of program register 8 is set and the content of a first page is written in a VRAM 4. Then, when the property such as a foreign character specification or concealment effecting over the plural pages is detected in course of displaying the content of the first page, a property register 11 is set by the control part 10. When the second turn is begun by pushing the page key and the property register 11 is not set, the address of the data buffer in the control part 10 is fetched by a next page address buffer 13 and immediately the next page is display.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a teletext receiver for receiving teletext signals.

BACKGROUND OF THE INVENTION There are several types of teletext broadcasting, in which various text and graphic programs are broadcast using the gaps between television and radio waves.

One of them is the collective form. The batch type is a form in which presentation processing is performed after receiving all page data of a program on the receiver side, and is a form in which the receiver side uses each page data at once.

Conventionally, in these batch-type programs, when a page update request is made, the next page is processed after the display of each page is completed.

Hereinafter, a conventional example will be explained using FIG. 4.

Reference numeral 1 denotes a character signal extraction unit which extracts a teletext signal from the video signal from the video signal input unit A at one vertical synchronization period;
Valid data is taken into the internal buffer RAM for each scanning line.

Reference numeral 2 denotes a key processing section, which has a group of various input keys when using a teletext program, determines the key force, codes it, and transmits it to the control section 3, which will be explained next.

3 is a control unit that performs initial settings, further discriminates the coded key input transmitted from the key processing unit 2, searches for the corresponding data from the buffer and RAM of the character signal extraction unit 1, and processes it. After adding the bidet fRAM (VRAM)
Write to 4 tr.

The VRAM 4 is a video RAM into which character/graphic data is written by the control section 3, and is used to display and read out the written data to the video synthesis section 6 in synchronization with a video synchronization signal.

A video/color signal processing section 6 processes the video signal from the video signal input section A, converts it into an RGB signal, and outputs it to the video synthesis section 6.

The video synthesis section 6 synthesizes the video signal from the VRAM 4 and the video signal from the video/color signal processing section 6 and outputs the result.

The display 7 displays the output from the video synthesis section 6.

8 is a batch program register for storing whether the selected teletext is a batch program or not.

If the program consists of three pages, pressing the page key will display the page as shown in FIG.

When the teletext program is a batch program, the content of the first block of program data is detected by the control section 3, the batch program register 8 is set, and the control section 3 performs batch program processing according to the contents of the batch program register 8.

When the first 1-page screen is displayed, after that, each time the page key is pressed, the 2-page screen and 3-page screen are displayed.

Next, one-page screens are displayed one after another. At this time, the next page is displayed after each page is completely displayed.

Problems to be Solved by the Invention However, in the past, when a teletext broadcast program was received, pressing the page key did not immediately move to the next page, and the current page was completely displayed. I had to wait until it was finished. When there is a page that requires a relatively long processing time in a multi-page program, the key response seems particularly poor.

In particular, there were problems with key operability when the page was used repeatedly, such as in a table of contents program.

In view of the above problems, the present invention attempts to provide a teletext receiver that can display the next page by pressing the page key without waiting for the display of the currently displayed page to completely finish. It is something to do.

Means for Solving the Problems In the present invention, when a batch program consisting of multiple pages is received, each attribute register is provided for checking each attribute while the pages go around first. When an attribute is detected during the first display process, and the top of the page is requested again in a page request, the next page is immediately processed based on the attribute detection result for each page request even if the current page is currently being processed. It is characterized by being configured to do the following.

Effects of the present invention When a package program having multiple pages is received and each attribute is detected before the last page is detected, from the second round onwards, if no attributes are detected, the page display is changed. Even if the process is not completed, the process is immediately started from the beginning of the next page, so in this case, the next page can be displayed before the display is completed.

Example An embodiment of the present invention will be described below with reference to the drawings.

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

Components in FIG. 1 having the same numbers as those in the conventional example shown in FIG. 4 have the same functions, and detailed explanations will be omitted.

Reference numeral 1o denotes a control section which, in addition to the functions of the conventional control section 3, has - a function of detecting attributes within a conversational program and a function of calculating addresses for a multi-page program.

Reference numeral 11 denotes an attribute register, which is set when it is detected that a non-standard character designation or concealment is included in a program.

12 is a counter, which is set when the paging of the story-type program completes one cycle.

A next page address buffer 7 13 stores the address of the buffer 1 in which data of the page next to the currently displayed page is stored.

The operation of the present invention will be described below.

When a teletext program is requested by the key processing section 2, the control section 10 finds the requested teletext program from among the teletext data taken into the character signal extraction section 1 and stores it in the internal buffer 1 memory. increases. Furthermore, if this program is a batch program, set the -episode program register 8,
Write the contents of the first page to VRAM4. The contents of the VRAM 4 are combined with the signal from the video/color signal processing section 6 by the video synthesis section 6 and displayed on the display 7.

If an attribute such as external character designation or concealment that affects multiple pages is detected during display processing of the contents of the first page, the control unit 1o sets the attribute register 11. Further, the address storing the second page data of the internal backup memory is stored in the next page address buffer 113.

Thereafter, the same process is performed every time the page key is pressed.

When the last page is detected, the counter 12 is set. Note that the above-mentioned attribute may be detected by detecting a code indicating the attribute, which is embedded in the teletext program.

When the page key is pressed to enter the second round, if the display process is in progress when the page key is pressed, if the attribute register 11 is set, the next page will be displayed after the completion of the page, and the attribute register 11 must be set. For example, the address of the internal data buffer of the control unit 1o is fetched from the next page address buffer 13, and the display processing of the next page is immediately performed.

The flow of the above processing is shown in FIG.

FIG. 3 shows a display example when the attribute register 11 is not set.

Effects of the Invention As described above, according to the present invention, when a batch program is received via teletext, the attributes of each page are checked in the first round, and the attributes of each page are checked in the first round.
After the first round, even if a page key is pressed while the screen is being displayed, if the attributes are not checked, the display process will immediately proceed to the next page, improving key operability and reducing waiting time. Extremely good effects can be obtained.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a teletext receiver according to an embodiment of the present invention, Fig. 2 is a schematic diagram of a conventional teletext receiver according to the same embodiment, and Fig. 2 is a screen diagram of the conventional teletext receiver. It is a front view showing display contents. 1...Character signal extraction unit, 2...Key processing unit, 4...VRAM, 6...Video...
Color signal processing unit, 6...Video synthesis unit, 7...
...Display, 8...Batch program register,
10...Control unit, 11...Attribute register, 12...Counter, 13...Next page address buffer 7゜Name of agent Patent attorney Satoshi Nakao 2nd male and 1 other person
Figure 3 Figure 5

Claims (1)

[Claims] Attributes are detected in the first display process when a batch program is received, and after the top of the page is requested again in a page request, the above attribute detection results will be used immediately for each page request even if the current page is currently being processed. A teletext receiver characterized in that it is configured to perform next page processing.