KR0163135B1 - Teletext/dactylology image processing apparatus for television - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television having a text / signal processing function, and has a function of reproducing and processing a video signal of a channel tuned by a plurality of tuners and displaying the image on a CRT device 32 as a multi-screen image. A television having a function of receiving a text multicast signal (TXT signal) included in a signal, wherein the text / signal mode is selectively designated for a TXT signal included in a video signal of a channel tuned by the plurality of tuners. A remote controller 10 and a control unit 12 for controlling reproduction processing of the TXT signal included in the TXT signal into text information and sign information in the text / signal mode, and the plurality of tuners under the control of the control unit 12; Character / sign language processing means 24 for processing the TXT signal included in the video signal of the channel selected in 18a and 18b into character information and sign language information, and the text information and sign language processed by the text / sign language processing means 24; Information An image multiple processing unit 28 and an image output unit 30 are applied to the CRT device 32 so as to be displayed in an image multiple format, and the TXT signal of the channel tuned by the one tuner is a character information as the CRT device. The TXT signal of the channel tuned by the other tuner is displayed on the sub screen 32a of the CRT apparatus 32 as the sign language information.

Description

Television with Text / Sign Language Processing

1 is a diagram schematically showing the configuration of a television with a character / sign language processing function according to a preferred embodiment of the present invention.

FIG. 2 is a schematic block diagram of the character / sign language processing means shown in FIG.

3 is a flowchart for explaining the operation of a television with a text / sign language processing function according to the present invention.

4 (a) and 4 (b) are diagrams showing screen display states of text and sign language information in a television having a text / sign language processing function according to the present invention.

* Explanation of symbols for main parts of the drawings

10: remote controller 12: control unit

16: OSD processing unit 18a, 18b: first and second tuner

20: audio processing system 22a, 22b: first and second video IF module

24: character / sign processing means 28: the image multiple processing unit

30: video output unit 40: CPU

42,50: 1st TXT signal extraction unit

44,52: TXT signal memory 46: TXT signal processor

48: first signal conversion section 54: TXT code detection section

56: code / sign language processing unit 58: sign language code storage unit

60: second signal conversion section 62: signal switching output section

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television having a text / sign language processing function, and more particularly, to a teletext signal (text broadcast signal) received from a plurality of channels in a television to be processed and reproduced as a text signal and a sign language signal. The present invention relates to a television having a text / sign language processing function.

As is well known, a unique channel is assigned to a broadcast station transmitting a broadcast signal. Accordingly, when a particular broadcast station is tuned by a television, a desired broadcast program broadcasted by the broadcast station is reproduced.

Usually, a single tuner is added to a television as a means for tuning a channel assigned to a broadcast station, and the tuner makes it possible to tune only a channel to a single broadcast station, and thus, for example, a program of another channel. If necessary, such as the confirmation of the end of the broadcast or the termination of the broadcast, the broadcast program broadcasted on the currently watched channel must be temporarily disconnected by a single tuner.

In view of this, in recent years, a plurality of tuners are provided on a television to enable tuning of a plurality of channels, and the tuner of one of the plurality of tuners is currently tuned to the currently watching channel. While maintaining the other tuner, the other tuner enables confirmation of a broadcast program of another channel, confirmation of a broadcast end state, or the like.

In addition, the so-called 'teletext signal (or text broadcasting signal)', in which specific information is reproduced in text form, is also transmitted to a broadcasting program broadcasted by a broadcasting station. It is inserted and transmitted in the section of the character broadcast data allocated to the vertical retrace period of the signal.

Therefore, when a television is changed from a TV mode for reproducing a video signal and an audio signal of a conventional broadcast program to a text broadcasting mode (TXT mode) for reproducing a text broadcast signal, the video signal and an audio signal of a normal broadcast program While the reproduction of the audio signal is muted, the character broadcast signal transmitted in the vertical retrace period of the video signal is reproduced.

Here, the character broadcast signal transmits various information collected by a plurality of information servers in units of pages, and the character broadcast signal of information corresponding to the page is reproduced by selecting the page.

Also, in the case of a television equipped with a plurality of tuners, a character broadcast signal of a channel tuned by one tuner is currently reproduced on the screen, and in some cases, a voice signal is added to the character broadcast signal. The text broadcast signal of the channel tuned by the tuner is reproduced on the screen, while the text broadcast signal of the channel tuned by the other tuner can be reproduced for the text broadcast signal of two channels by reproducing the audio signal added thereto. Done.

Here, when a hearing impaired person watches a text broadcasting signal tuned by a plurality of tuners, the text information on the screen can be visually read, but there is a disadvantage in that the text information reproduced by the voice signal cannot be recognized. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and when receiving a character broadcast signal by a plurality of tuners, the character broadcast signal of a channel tuned by one tuner is reproduced as character information on the screen by another tuner. It is an object of the present invention to provide a television having a text-signal information processing function in which a text broadcasting signal of a tuned channel is reproduced as sign language information.

In order to achieve the above object, according to a preferred embodiment of the present invention, a video signal of a channel tuned by a plurality of tuners is reproduced to display a multi-screen image on a CRT device. 1. A television equipped with a reception function of an embedded text multicast signal (TXT signal), comprising: means for selectively designating a text / signal mode for a TXT signal included in a video signal of a channel tuned by the plurality of tuners; And control means for controlling the TXT signal included in the TXT signal to be reproduced by text information and sign information in the text / signal mode, and included in the video signals of channels tuned by the plurality of tuners under the control means. Text / sign language processing means for processing the TXT signal into text information and sign language information, and text information and sign information processed by the text / sign language processing means on the CRT apparatus; Is equipped with the multi-modal character / sign language processing capabilities configured to having an image applied to display in a multi-processing means for the television is provided.

Preferably, the character / sign language processing means includes a CPU for performing control of processing TXT signals of channels tuned by the plurality of tuners into character information and sign language information, and a channel tuned by any one of the tuners. A first TXT signal extracting unit for extracting a TXT signal, a TXT signal processing unit for reproducing the extracted TXT signal on a page-by-page basis, a first signal converting unit for analog-converting the reproduced TXT signal, and the other tuner. A second TXT signal extractor for extracting a TXT signal from a video signal of a channel selected by the channel; a code / signal processing unit for converting code data of the extracted TXT signal into sign data based on a code / sign code; and converting the sign language data into an analog signal A second signal conversion unit for converting and a signal switching output unit for switching and outputting the TXT signal and the sign signal in the first and second signal conversion units under the control of the CPU; It is sex.

According to the television with the character / signal processing function according to the present invention having the above-described configuration, when the character / signal mode is set, the TXT signal of a channel tuned by any one of a plurality of tuners under the control of the control means In addition to being reproduced as character information, the TXT signal of a channel tuned by another tuner is processed as sign information and displayed on the area of the main screen and sub-screen of the CRT apparatus.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, FIG. 1 is a block diagram of a television with a character-signal function according to a preferred embodiment of the present invention. Reference numeral 10 is a remote control for setting the overall function added to a two-tuner television. A first mode for designating a PIP function button 10a for designating a display of < RTI ID = 0.0 > and < / RTI > and a mode (TXT mode) for executing reproduction of a character broadcast signal (TXT signal) transmitted to a channel tuned by a single channel ( TXT mode) button 10b and a second mode (TXT / sign language) for designating a text broadcasting signal (TXT / sign language mode) to be reproduced with text information and sign language information transmitted to a plurality of channels. The button 10c is additionally provided.

12 is a control unit for controlling the overall operation of the television in response to the function set by the remote controller 10, and controls the video multiplexing (PIP), the reproduction processing of the TXT signal or the reproduction processing of text / signal information, and the like. .

Reference numeral 14 denotes a tuning data storage unit for storing tuning data for tuning a channel set by the remote controller 10.

16 in FIG. 1 shows an OSD processing unit for generating an OSD signal for displaying the function of the television set by the remote controller 10 in text.

18a and 18b show first and second tuners employed for the execution of the two-channel function set in the remote controller 10.

20 denotes a speech processing system including a speech IF module or a speech signal processing means for reproducing the speech signal of the channel tuned by the first tuner 18a (or the second tuner 18b).

22a and 22b are provided corresponding to the first and second tuners 18a and 18b to detect and amplify image signals of channels tuned by the first and second tuners 18a and 18b, and then amplify them. The first and second image IF modules PIF are shown.

24, the TXT signal extracted from the image IF signal IF-converted by the first and / or second image IF modules 22a and 22b is included in the vertical retrace period of the image signal and transmitted. Character / sign language processing means for reproducing with character and / sign language information is shown.

Reference numeral 26 denotes a PIP processing unit for processing a video signal of a channel selected by the second tuner 18b as a sub picture in the PIP mode set by the PIP function button 10a of the remote controller 10, for example.

Further, 28 reproduces, for example, a video IF signal applied from the first video IF module 22a when the broadcast signal is reproduced, whereas in the PIP mode, the first video IF module 22a and the PIP processor 26 are used. Image information or character / signal set by the TXT mode button 10b or the TXT / signal mode button 10c of the remote controller 10, A video multi-processing section which reproduces information.

30 denotes an image output unit 30 for amplifying the image multiple signal R / G / B applied from the image multiple processor 30 and displaying the same on the CRT apparatus 32.

According to the present invention, the CRT device 32 is allocated an area of the sub screen 32a for displaying the video signal or the sign language information by the PIP function.

FIG. 2 is a schematic block diagram of the character / sign language processing means 24 shown in FIG.

In the figure, reference numeral 40 denotes a CPU that is in charge of controlling the TXT signal to be processed into text information and / or sign language information under the control of the control unit 12.

42 denotes a first TXT signal extraction unit connected to an output side of the first image IF module 22a to extract the TXT signal included in the image signal and to inform the CPU 40 of the TXT signal transmission state. Denotes a TXT signal memory in which the first TXT signal is stored in page units, and 46 denotes a TXT signal processing unit for reproducing the TXT signal in page units stored in the TXT signal memory 44 under the control of the CPU 40. Reference numeral 48 denotes a first signal converting unit for analog converting the TXT signal processed by the TXT signal processing unit 46.

In addition, 50 denotes a second TXT signal extraction unit which is connected to the second image IF module 22b to extract the TXT signal included in the image signal and informs the CPU 40 of the TXT signal transmission state, and 52 denotes the TXT. A TXT signal memory in which signals are stored in page units is shown, and 54 denotes a TXT code detector for detecting code data of the TXT signal. Further, 56 is a code for converting the code data of the TXT signal into sign language information (i.e., converting to sign language graphic information) based on the sign code stored in the sign language code storage section 58 under the control of the CPU 40. A sign language processing section is shown, and 60 denotes a second signal converting section for analog converting the sign language information converted by the code / signation processing section 58.

In FIG. 2, reference numeral 62 denotes a TXT applied by the first signal conversion unit 48 under the control of the CPU 40 when the TXT mode is set by the TXT mode button 10b of the remote controller 10. While a signal is output to the image multiple processor 28, the TXT / reception mode is set by the TXT / reception mode button 10c of the remote controller 10 under the control of the CPU 40. A signal switching output unit for switching and outputting the TXT signal / signal information signal applied from the first and second signal converters 48 and 50 to the image multiplexer 28. Here, the switching output state of the TXT signal and the sign language information signal by the signal switching output unit 62 is changed when the TXT mode and the TXT / hydration mode set by the remote controller 10 are changed. In addition, the CPU 40 properly controls the control signal SW for the signal switching output section 62 to the area of the sub screen 32a provided in the CRT apparatus 32 shown in FIG. The sign language information signal applied by the second signal converter 60 is displayed.

Next, the operation of the television with the text / signal processing function according to the present invention will be described with reference to an example of the flowchart shown in FIG. 3 and the screen display shown in FIG.

First, when the control unit 12 receives the control signal from the remote controller 10 in step 70, it is determined whether the control signal is a signal for setting the TXT mode in step 72, and as a result of setting the TXT mode If it is not a signal for processing, the process proceeds to step 74 where normal broadcast signal reproduction processing is performed.

That is, when the channel selection button (not shown) of the remote controller 10 is tuned in step 74, the control unit 12 corresponds to the channel of the tuning target in the channel selection data storage unit 14. The tuner data VT1 is read and applied to, for example, the first tuner 18a. Accordingly, the first tuner 18a tunes the specific channel and broadcasts the broadcast signal of the channel to the voice processing system 20 and the first tuner. It is applied to the image IF module 22a. Accordingly, the audio processing system 20 applies the audio signal of the tuned channel to IF conversion processing and reproduction processing, and applies it to a speaker device (not shown). The first video IF module 22a receives the video signal. Detection and IF conversion are applied to the image multiple processing unit 28.

The image multiple processor 28 reproduces the image IF signal and applies it to the CRT apparatus 32 through the image output unit 30. Therefore, the CRT apparatus 32 displays and reproduces the video signal of the channel tuned by the first tuner 18a on the entire screen.

When the PIP function is set by the PIP mode button 10a of the remote controller 10 and the channel of the PIP function is set, the controller 12 controls the current channel for the first tuner 18a. The tuner data storage 14 reads and applies the tuner data VT2 for the channel of the PIP function to the second tuner 18b while maintaining the tuner state.

The video signals of the channels tuned by the first and second tuners 18a and 18b are applied to the first and second video IF modules 22a and 22b to be detected and IF converted to the first video. The image IF signal of the IF module 22a is applied to the image multiprocessing unit 28, while the image IF signal of the second image IF module 22b is transmitted to the CRT apparatus 32 by the PIP processing unit 26. It is processed into an image signal suitable for the area of the sub-screen 32a and applied to the image multiple processor 28. The image multiple processor 28 selects a channel selected by the first and second tuners 18a and 18b in response to a control signal CS of the PIP mode applied by the controller 12 when the PIP mode is set. Video signal of the CRT device 32 is applied to the CRT device 32 via the image output unit 30. Accordingly, the main screen of the CRT device 32 is controlled by the first tuner 18a. The video signal of the tuned channel is reproduced and displayed, and the video signal of the channel tuned by the second tuner 18b is reproduced and displayed on the sub screen 32a. Here, in the PIP mode, when the main / sub switching control is input from the remote controller 10, the display state of the main screen and the sub screen of the CRT apparatus 32 are switched to each other under the control of the controller 12. In addition, the controller 12 controls the OSD processing unit 16 whenever a function is set in the remote controller 10 so that an OSD signal corresponding to a setting state of the function is displayed on the image multiple processing unit 28. The insertion process is performed at an appropriate position so as to be displayed at a predetermined position of the CRT apparatus 32.

On the other hand, if the TXT mode is set in the remote controller 10 as a result of the determination in step 72, the controller 12 proceeds to step 76 where the TXT / reception mode button 10c of the remote controller 10 transmits the TXT. It is determined whether the signal (text) / signal mode is set. If the result is not the text / signal mode, the TXT mode is determined by the TXT mode button 10b of the remote controller 10. The transition to 78. That is, in step 78, the control unit 12 applies the control signal CS to the video multi-processing unit 28 so as to be set to the reproduction processing mode of the TXT signal while stopping the normal video signal processing described in step 74. The control signal for specifying execution of the TXT mode is applied to the CPU 40 of the character / sign language processing means 24.

Accordingly, the CPU 40 is configured to output the video signal of the channel tuned by the first tuner 18a by the first TXT signal extraction section 42 connected to the output side of the first video IF module 22a. If there is no signal for the transmission state of the TXT signal, for example, the control unit 12 informs the execution of the TXT mode due to the non-transmission state of the TXT signal.

In contrast, the CPU 40 controls the execution of the TXT mode when the transmission state of the TXT signal is confirmed, and the TXT signal extracted from the first TXT signal extractor 42 is the TXT signal memory 44. If a specific page is designated by the remote controller 10 in the TXT mode, the designated page number is applied to the CPU 40 by the controller 12, and accordingly the CPU 40 The TXT signal processing unit 46 is controlled to perform reproduction processing (processing into R / G / B signals) of the TXT signal data of the corresponding page stored in the TXT signal memory 44.

The TXT signal data processed by the TXT signal processing section 46 is applied to the first signal conversion section 48 to be analog converted, and then the signal switching output controlled by the switching control signal SW of the CPU 40. It is applied to the image multiple processor 28 and the image output unit 30 through the unit 62.

On the other hand, when the text / signal mode is set by the TXT / signal mode button 10c of the remote controller 10 as a result of the determination in step 76, the control unit 12 transmits TXT / Set the sign language mode, the CPU 40 according to the TXT signal from the first TXT signal extraction section 42 and the second TXT signal extraction section 50 is confirmed in step 78 and the TXT Control the execution of sign language mode.

Therefore, the TXT signal data of the page unit extracted by the first TXT signal extracting unit 42 and stored in the TXT memory 44 is reproduced by the TXT signal processing unit 46 in step 80, and then the first signal converting unit is processed. The TXT signal of the channel analog converted by 48 and tuned by the second tuner 18b extracted by the second TXT signal extraction unit 50 is stored in the TXT signal memory 52 and then the remote controller ( TXT signal data of the page selected in step 10) is code-detected by the TXT code detector 54, and code data of the detected TXT signal is applied to the code / sign language processor 56.

Under the control of the CPU 50, the code / sign language processing unit 56 converts the code data of the TXT signal into graphic data of a sign language based on a sign code stored in a sign code code storage unit 58, and then performs the second processing. The sign conversion information signal, which is applied to the signal conversion unit 60 and analog converted by the second signal conversion unit 60, is controlled by the CPU 40 in the signal switching output unit 62. The first signal converter 48 is switched with the TXT signal to be displayed on the sub picture 32a defined in the device 32.

Accordingly, the character information and sign language information of the TXT signal processed in step 78 or the TXT signal processed in step 80 are transmitted through the image multiple processing unit 28 and the image output unit 30 in step 82. 28) and the text output signal of the TXT signal processed in step 78 is displayed on the entire screen of the CRT device 32, as displayed on the CRT device 32 through the image output unit 30 (see FIG. On the other hand, the text / sign language information processed in step 80 is displayed on the main screen and the sub screen 32a of the CRT apparatus 32 (see FIG. 4 (b)). ).

Subsequently, the control unit 12 determines whether the TXT mode is released in step 84, and returns to step 76 when the TXT mode is not released, and repeats the subsequent processing, whereas the initial step when the TXT mode is released. Will return to.

As described above, according to the television with the character / signal processing function according to the present invention, a TV having a plurality of tuners converts TXT signals of a plurality of channels into character / signal information so that they are displayed on the CRT apparatus. Therefore, the information of the TXT signal of the plurality of channels can be visually taken.

And, of course, various changes and modifications can be made to the present invention without departing from the technical gist and gist of the invention.

Claims (2)

A character multi-broadcast signal (TXT) included in the video signal has a function of reproducing a video signal of a channel selected by a plurality of tuners 18a and 18b and displaying it as a video multi-screen on the CRT apparatus 32. And a means (10) for selectively designating a text / signal mode for a TXT signal included in a video signal of a channel tuned by the plurality of tuners (18a, 18b) in a television equipped with a reception function of a signal); Control means (12) for controlling the TXT signal included in the TXT signal to be reproduced by sign language information in the text / signal mode, and the plurality of tuners (18a, 18b) under the control of the control means (12). Character / sign language processing means 24 for processing the TXT signal included in the video signal of the channel tuned in step 2) into character information and sign language information, and the character information and sign language information processed by the text / sign language processing means 24; Display in image multiple form on the CRT device 32 Image processing means for applying to a multi-28 Television with the character / sign language processing function, characterized in that configured by comprising a. 2. The CPU 40 according to claim 1, wherein the text / sign language processing means 24 performs a CPU 40 for performing control of processing TXT signals of channels tuned by the plurality of tuners 18a and 18b into text information and sign language information. ), A first TXT signal extractor 42 for extracting a TXT signal of a channel tuned by any one of the tuners, a TXT signal processor 46 for reproducing the extracted TXT signal in units of pages, and the playback process. A first signal converter 48 for analog converting the TXT signal, a second TXT signal extractor 50 for extracting the TXT signal from the video signal of the channel tuned by the other tuner, and the extracted TXT signal. A code / sign language processing unit 54 for converting code data into sign language data based on the code / sign language code, a second signal conversion unit 60 for analog conversion of the sign language data, and the first and second signal conversion units ( TXT and sign language signals at 48 and 60 are controlled under the control of the CPU 40. Television with a character / sign language processing function, characterized in that it comprises a signal switching output unit 62 for switching output.