JP2002534861A - Text data receiver and display method thereof - Google Patents

Abstract

(57) Abstract The present invention relates to a receiver and a method for displaying text data. For example, a television receiver (1) for displaying teletext data (D) is a digital character code for converting a character code into a character displayed on a screen (3) by a character set user selecting means (41) And a memory (23) containing a character set (000, 001,...). The character set is usually divided into blocks (I, II,...). In a further embodiment, the present invention provides a means for user selection at the block level to limit the number of selections. Within the block, the character set to be used is determined by the 3-bit language code in the header of the teletext page. In a practical embodiment, the audio language I / II button (41) is used in teletext mode to select from at least two blocks. In a further practical embodiment, this selection is stored in a non-volatile memory (7). The present invention provides a method for easily selecting a character set for displaying characters.

Description

DETAILED DESCRIPTION OF THE INVENTION

The present invention provides a text data display having digital character code receiving means, a memory for storing at least two character sets for converting character codes into characters on a screen, and means for selecting one of the character sets. Related to receivers.

[0002] The present invention also relates to a text having a step of receiving a digital character code and selecting a character set from a memory storing at least two character sets for converting the character code into characters on a screen. The present invention relates to a method for displaying data on a receiver.

[0003] Research Disclosure, December 1994/695, discloses a text data receiver and its display method.

In teletext data, a 7-bit character code is used for each character position on a teletext page. Characters related to character codes are defined by character sets. The character set converts character codes to characters on the screen. 1 different for each character position
The maximum number of 28 characters can be displayed in this way.

[0005] Different character sets are defined to display characters that are specific to a given language at the request of the user. For each teletext page, the character set may be defined by a 3-bit language code present in the header for each page. With this code,
The broadcaster can select one from the maximum number of eight different character sets.

[0006] There are eight or more languages in Europe, and more than eight character sets are desired. To achieve this, a number of different blocks are defined, each block having a maximum number of eight character sets. One block usually has a character set of a predetermined area, for example, Western European or Eastern European. The different blocks are at the receiver. The blocks used are preset at the factory to match geographically.

[0007] Problems arise when the broadcaster starts with different default settings. For example, it often occurs when the receiver is outside the area of the broadcasting station, such as in the case of satellite reception. This is the case of MTV in Poland. This is also the case if the broadcaster uses a language code that specifies, for example, the English character set in the Western European block. For reception in Poland, however, the teletext receiver may use the character set from the Eastern European block according to its default settings.
Since the language code for the English character set from the Western European block specifies Polish characters in the Eastern European block, the teletext page is displayed in Polish characters.

This problem is solved by the above-mentioned Research Disclosure. Linguistic analysis derives the correct character set from the character code. According to the present disclosure, for example, it can be realized by comparing a character string that frequently occurs in teletext data with a character string that frequently occurs in a predetermined language. Therefore, the character set is selected according to the result of the linguistic analysis.

This method is difficult to perform and it is not clear whether accurate results have been achieved.

The present invention aims to provide another simple method of selecting a character set for the correct display of characters.

To this end, the receiver according to the invention is characterized in that the means for selecting one of the character sets comprises a selection means operable by the user of the receiver. Thus, the present invention allows a user to select a character set. A simple and effective way is obtained. If the characters are not displayed correctly, the character set is changed by the selection means and the characters are displayed correctly at the user's discretion.

From the foregoing, character sets in teletext are typically grouped into blocks. Selection at the level of these blocks is desired to limit the number that can be selected. In an embodiment, the user selection means is configured to select one of the blocks.

The receiver may have an audio language selection button. A further embodiment of the invention is characterized in that the language selection button is arranged as a selection means in the text mode of the receiver.

Preferably, the final selection of the character set or block is stored. This is advantageous by using a non-volatile memory for storing presets. As an embodiment, the nonvolatile memory is configured to store the setting of the selection unit for each preset. This information is used during a new adjustment of the preset, and the text is displayed directly on the preset.

[0015] These and other aspects of the invention will be apparent from and will be elucidated with reference to the embodiments described hereinafter.

FIG. 1 is a diagram showing a general configuration of a television receiver according to the present invention. The television receiver 1 includes a teletext decoder 2, a display screen 3, a remote control unit 4, an infrared receiver 5, a microprocessor 6, and a nonvolatile memory 7.

The teletext decoder 2 includes a receiver 21 for receiving a character code and a character set 0.
00, 001,. . . And a selector 22 for selecting a character set to be used from a memory 23 for storing the character set. For simplicity, only two character sets are shown in FIG. These character sets convert character codes into characters on the display screen 3. The means for selecting a character set from the memory 23 includes the selector 22, the remote control unit 4, the infrared receiver 5, and the microprocessor 6. The non-volatile memory 7 for storing presets is described in a further embodiment.

The teletext data D is received by a decoder, and the character code is received by a receiver 21. The character set to be used for character display is determined by selector 22 controlled by the output of microprocessor 6. According to the invention, the selection means is provided together with the user selection means. In this example, the user selection means forms part of the remote control unit 4. The signal from the remote control unit 4 is received via the infrared receiver 5 in the microprocessor 6, after which the microprocessor activates the selector 22.

A character set is usually divided into blocks. Block-level selection is recommended to limit the number of selections. For clarity, the preferred embodiment is described in FIG. FIG. 2 is a diagram further detailing a memory for storing a character set.

In the memory 23, the character set is further divided by the illustrated method into two blocks I and II, each having eight character sets. Block I is, for example, a West European block and Block II is an Eastern European block.

3 that is present in the header of the teletext page and is received by the receiver 21
The bit language code specifies which character set is used from the block.
For example, language code 000 specifies both I / 000 (English character set) and II / 000 (Polish character set).

The broadcaster can determine the block selection by the packets 28/29. However, in many cases, this packet is not transmitted. In that case, the default settings determine which block is used.

In one embodiment of the present invention, the selection means is configured to select a block as a component of the remote control unit 4.

In the preferred embodiment, a language selection button is used as a selection means.
Such buttons are commonly used for selecting the language of an audio channel of a television receiver. For television programs broadcast in multiple languages, the language can be set with this button. According to an embodiment of the present invention, the language selection button is configured as a selection means in the teletext mode of the receiver. In this way, existing buttons are provided with other functions and there is no need to provide other buttons for character set selection. Normally, this button is located on the remote control unit 4, but may be provided elsewhere.

Preferably, the button is an I / II language selection button as indicated by reference numeral 41 in FIG. This is, in principle, a language selection button that allows two to be selected.
Selection between at least two blocks according to the character set is performed by the I / II language selection button. In the case of two blocks, the two blocks correspond to two selectable I / II language selection buttons. If there are more blocks in the memory, these blocks may be selected, for example, cyclically. Each time the language selection button is pressed, the following block is selected.

The language selection button 41 is used for selecting a block, but may be used for selecting a character set.

It is preferable that the setting of the selection means be stored in, for example, the nonvolatile memory 7.
This is the memory used to store presets. The setting of the selection means is stored for each preset. For two blocks, it is sufficient to use one bit for the preset, as described by the example method. Selecting from more blocks or character sets requires more bits.

If the television receiver 1 is installed, the default settings for block selection and character set selection are stored in the non-volatile memory 7 according to region and preferred language. When the teletext mode is activated, the settings are retrieved from the nonvolatile memory 7. Characters on the teletext page are displayed according to the immediate block selection and character selection. The block selection can be set by the language selection button 41. The character set selection is usually determined by the language code present in the header of the teletext page, but may be set by the language selection button 41 or another button of the remote control unit 4. When exiting the teletext mode, the setting of the selection means is stored in the nonvolatile memory 7.

[0029] The invention is not limited to television receivers. For example, the present invention relates to VCR, set-top
Used for boxes, PCs with teletext decoders, etc. The application of the present invention is not limited to teletext data, but can also be applied to applications in other receivers that display text data, such as RDS. In the above embodiment,
The invention is not intended to be limiting, but rather to illustrate it. These techniques could represent other embodiments without departing from the scope of the appended claims.

In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word “comprising” and its derivatives do not exclude other elements or steps than those described in a claim. The invention may be implemented by other components as well as by a correctly programmed computer. In the claims relating to a receiver in which various means are described,
Some of these means may be implemented in one and the same piece of hardware.

[Brief description of the drawings]

FIG. 1 is a diagram showing a general configuration of a television receiver according to the present invention. The figure also shows
The components necessary for understanding the present invention are also shown.

FIG. 2 is a diagram further detailing a memory for storing a character set.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Van Hestel, Henrikus Århe The Netherlands, 5656 Aer Aindow Fen, Plov Holstrahn 6 (72) Inventor Vanderle, Johan Em Netherlands, 5656 Aer Aindow Fen, Prof・ Holstrahn 6F term (reference) 5C063 AB03 AB07 CA23 CA36 DA13 EB01 EB03 EB04 EB07 EB35 5K061 BB06 BB10 CC45 DD00 JJ06 JJ07

Claims (7)

[Claims] 1. A means for receiving a digital character code, and at least two character sets (000, 000) for converting the character code into characters on a screen.
001,. . . ), And a receiver for displaying text data having means for selecting one of the character sets, wherein the means for selecting one of the character sets is operable by a user of the receiver. A receiver comprising a selection unit. 2. Each of at least two character sets (000, 001,...).
At least two blocks (I, II,...) Are stored in memory, the receiver comprising: means for receiving a digital language code specifying a character set to be used from the blocks; 2. The receiver according to claim 1, further comprising: means for selecting one of the blocks, wherein the user selecting means is configured to select one of the blocks. 3. The receiver according to claim 2, further comprising an audio language selection button, wherein the language selection button functions as the user selection means in the text mode of the receiver. The receiver according to 1. 4. The receiver further comprises a non-volatile memory for storing presets, wherein the non-volatile memory is configured to store settings of the user selecting means for each preset. The receiver according to claim 1, wherein: 5. Receiving a digital character code, and at least two character sets (000) for converting the character code into characters on a screen.
, 001,. . . ) Selecting a character set from a memory in which the character set is stored, wherein one of the character sets is selected by a selection means operable by a user of the receiver. A method characterized by being selected. 6. Each of at least two character sets (000, 0001,...).
. . At least two blocks (I, II,...) Are stored in said memory, and further comprising receiving a digital language code specifying a character set to be used from the blocks. 6. The method according to claim 5, comprising the steps of: selecting one of the blocks selected by said user selection means. 7. The method further comprises storing a preset in a non-volatile memory,
6. The method according to claim 5, wherein the setting of the user selecting means is stored in the nonvolatile memory for each preset.