KR19980038631A - Television with display function for surround settings - Google Patents

Abstract

The present invention has a display function for the surround setting state that allows the user to easily select the appropriate surround mode by outputting the information on the output mode of the surround mode set by the user when the user sets the surround mode to the OSD screen. A television, comprising: a control signal input unit for detecting a video signal and an audio signal from a composite video signal and performing playback accordingly, wherein the surround mode is set and a specific surround mode is selected from among the surround modes; 1) and a control unit for outputting an OSD screen for a basic surround mode when the surround mode is set, and for outputting an OSD screen for a corresponding surround mode when a specific surround mode is selected by the control signal input unit 1. (2) under the control of the control unit 2 OSD processing unit 4 for generating an OSD text signal for configuring the OSD screen for each surround mode, and under the control of the controller 2, the OSD text for the OSD text signal output from the OSD processing unit 4 is CRT. It characterized in that it comprises a video processing means (11, 12) for insertion processing on the screen.

Description

Television with display function for surround settings

The present invention relates to a television having a display function for a surround setting state. The present invention relates to a surround setting state in which an OSD screen for an output form of a surround mode set by a user can be output when the user sets the surround mode. It relates to a television with a display function.

Televisions, which are prevalent in general homes, typically perform reproduction processing on broadcast signals received through antennas and reproduce them through CRT screens and speakers. In order to improve the sound field feeling of the stereoscopic sense, a surround function for the corresponding audio signal was required, and in response to such a demand, a television having a built-in surround function has been put into practical use.

On the other hand, in order to process the audio signal, the audio signal is processed through 5 channels of the surround speaker and the center speaker which are separately installed, and according to the processing method, the normal surround mode, the wide mode, the phantom ( It is divided into PHANTOM mode, 3 channel mode, and PANORAMA mode.

Here, the surround normal mode is a method in which all five channels are filtered to output an audio signal to an L speaker, an R speaker, a center speaker (C), an L surround speaker (SL), and an R surround speaker (SR). In the wide mode, all five channels are filtered and the frequency of the audio signal output to the center speaker is multiplied, so that the L speaker, the R speaker, the center speaker (C), the L surround speaker (SL), and the R surround speaker (SR) are respectively. In the phantom method, only 4 channels of the 5 channels are filtered to output audio signals to the L speakers, the R speakers, the L surround speakers (SL), and the R surround speakers (SR), respectively. The channel method filters only three of the five channels so that the audio signal is output to the L speaker, the R speaker, and the center speaker C, respectively, and reinforces the surround sound to the audio signal output to the L and R speakers. , remind Panoramic scheme to enhance the surround sound to a voice signal output to the L and R speakers, while speakers to output the audio signal to each speaker L, R speaker by filtering only the second channel of the five channels.

As described above, when the user sets a specific surround mode among the various surround modes, the audio output form in the specific surround mode is not known. For example, the normal surround mode is set or the wide mode is not connected to the surround speakers. If you set the way that the audio signal is output to the surround speaker without installing the surround speaker as in the case of the above case, the surround sound signal is not output to the surround speaker. The stereoscopic sense or presence of the voice signal output through the deterioration is reduced.

Therefore, in this case, it is preferable that the user sets the three-channel method or the panorama method. However, since the user does not accurately recognize the voice output form in a specific method, the user may not be satisfied with the sound quality by setting an inappropriate surround mode. .

Therefore, the present invention was created in view of the above circumstances, and when the user sets the surround mode, the user can easily select a suitable surround mode by outputting information on the output mode of the surround mode set by the user on the OSD screen. The aim is to provide a television with a display function for surround setting.

According to an embodiment of the present invention for realizing the above object, in a television which detects a video signal and an audio signal from a composite video signal and performs playback accordingly, a surround mode is set and among the surround modes. A control signal input unit for selecting a specific surround mode, and an OSD screen for the basic surround mode is output when the surround mode is set, and an OSD screen for the surround mode is selected when the specific surround mode is selected by the control signal input unit. A OSD controller for generating an OSD text signal for configuring an OSD screen for each surround mode under control of the controller, and an OSD text for the OSD text signal output from the OSD processor under control of the controller. Includes image processing means for inserting the image on a CRT screen. Television with surround settings are configured for the display function is provided.

According to the present invention having the above-described configuration, when the user selects the surround mode, information on the output mode of the surround mode provided in the surround mode is output as the OSD screen in response to the user's selection key 1f operation. When the user selects a specific surround mode in consideration of the output form displayed on the OSD screen, the user may be satisfied with the sound quality.

1 is a block diagram of a television having a display function for a surround setting state according to an embodiment of the present invention;

2 is a diagram showing an example of the configuration of the control signal input unit 1 shown in FIG.

3 is a flowchart illustrating a television having a display function for a surround setting state according to an embodiment of the present invention;

4 is a diagram illustrating a screen display example according to an embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

1: control signal input unit 2: control unit

3: Channel data storage unit 4: OSD processing unit

5: Tuner 6: Voice IF Module

7: voice signal processing unit 8: Dolby processing unit

9: audio amplifier 10: video IF module

11: Image signal processor 12: Image amplifier

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

1 is a block diagram of a television having a display function for a surround setting state according to an embodiment of the present invention, in which reference numeral 1 generally includes a control panel installed at the front of the television. It is composed of a remote control for remote control of the television is a control signal input unit for setting the overall function of the television.

In the present invention, as shown in FIG. 2, the control signal input unit 1 includes a power key 1a for controlling the on / off power of the television to be controlled, direct channel selection and reservation time setting of the channel, and the like. 10-key (1b) to perform, channel adjustment key (1c) for up / down adjustment of the tuning channel, volume adjustment button (1d) for up / down adjustment of the volume of the audio signal output to the speaker, surround A surround key 1e for setting a mode and a selection key 1f for selecting a specific surround mode in setting the surround mode are provided.

In addition, reference numeral 2 controls the entire apparatus such that the overall operation of the corresponding television, for example, tuning of a specific channel is performed or the volume level or screen adjustment state is adjusted based on the control signal input from the control signal input unit 1. In the present invention, when the surround mode is set, the controller 2 includes an apparatus for displaying an OSD screen for output types in various voice surround modes in response to the input of the selection key 1f signal. Control unit to control.

Reference numeral 3 denotes a channel data storage for storing channel data for channel selection of a specific channel, and 4 denotes character information for function control specified by the control signal input unit 1 under the control of the controller 2. In addition to generating an OSD text signal for performing the display, the OSD processing unit is configured to generate an OSD text signal for constructing an OSD screen representing an output form in various voice surround modes in accordance with the present invention.

In addition, reference numeral 5 denotes a tuner for tuning a specific channel among a plurality of broadcast channels received through an antenna based on the tuning voltage VT applied from the controller 2, and 6 denotes a tuner. Performing an IF conversion process on the broadcast signal for the selected channel and detecting only a voice signal from the IF converted broadcast signal, and 7 denotes the voice IF module under the control of the control unit 2; A voice signal processing unit for processing the voice signal outputted from 6) in a voice processing mode such as volume adjustment, voice surround or voice multiplexing set by the control signal input unit 1, where 8 is from the voice signal processing unit 7; 9 is a Dolby processing unit for removing noise components from the output voice signal, and 9 denotes the voice signal so that the voice signal output from the Dolby processing unit 8 can be reproduced and output through the speaker SP. An amplification unit for amplifying the speech at a predetermined amplification degree.

In addition, reference numerals 10, 11, and 12 shown in FIG. 1 are audio signal processing means for reproducing an audio signal among video / audio signals for a specific channel tuned through the tuner 5, and reference numeral 10 IF converts the broadcast signal from the tuner and then detects only the video signal from the IF-converted broadcast signal. 11 is an image output from the video IF module 10 under the control of the controller 2. The signal is transmitted to the image related function designated by the control signal input unit 1, for example, brightness / contrast adjustment, or the OSD text signal generated by the OSD processing unit 4 is inserted into the screen and the R / G / B / A video signal processing unit for outputting a Y signal, and 12 is an image amplifying unit for amplifying the video signal processed by the video signal processing unit 11 to be displayed on the CRT apparatus connected to the rear stage.

Next, the general operation of the television having the above-described configuration will be briefly described.

When a control signal for power-on and channel selection is input from the control signal input unit 1, the control unit 2 turns on the power of the television based on the control signal and is a channel to be tuned to. When the preset voltage VT corresponding to the readout is read by the channel data storage unit 3 and the corresponding tuner voltage VT is applied to the tuner 5, the tuner 5 is identified by the tuner voltage VT. Perform channel tuning for the channel.

Subsequently, when the tuner 5 applies the broadcast signal for the selected channel to the voice IF module 6, the voice IF module 6 performs IF conversion processing on the corresponding broadcast signal, and then in the IF converted broadcast signal. Only the voice signal is detected and applied to the voice signal processor 7 connected to the means, and the voice signal processor 7 is set through the control signal input unit 1 for the voice signal under the control of the controller 2. After performing the voice processing according to the volume level or the voice multiplexing process, the voice signal is applied to the Dolby processor 8 to remove the noise component and then to the voice amplifier 9 connected to the subsequent stage. Subsequently, the voice amplifier 9 amplifies the voice signal from the voice signal processor 8 with a predetermined amplification and applies it to the speaker SP connected to the rear stage. The signal is output.

At the same time, the broadcast signal tuned by the tuner 5 is also applied to the video IF module 10. The video IF module 10 performs IF conversion on the broadcast signal and then the video on the IF converted broadcast signal. Only the signal is detected and applied to the video signal processing unit 11 connected to the rear stage, and the video signal processing unit 11 controls the video signal such as color / brightness / tint / sharpness under the control of the control unit 2. In addition to performing the processing, the process of inserting the OSD text signal applied from the OSD processing section 4 is performed, and then the video signal corresponding thereto is applied to the image amplifying section 12 connected to the rear stage. Subsequently, the image amplification unit 32 amplifies the video signal and applies the same to the CRT device, thereby reproducing and outputting a video signal of a specific channel through the CRT device.

Hereinafter, an operation of a television having a display function for a surround setting state according to an embodiment of the present invention will be described in detail with reference to the flowchart shown in FIG. 3.

First, the control unit 2 performs a reproduction processing operation on a TV broadcast signal based on a power on signal and a channel tuning signal input from the control signal input unit 1, and the control signal input unit 1 It is determined whether or not a surround key (1e) signal is input from (step 20). When the user operates the surround key (1e) to set a surround mode and a corresponding key signal is applied to the controller (2), the controller ( 2), the process proceeds to step 21 according to the determination result (YES) in step 20 so that the OSD screen for the basic surround mode is output on the CRT screen.

That is, in step 21, the controller 2 applies a predetermined control signal to the OSD processor 4 and the image signal processor 11 so that the OSD screen as shown in FIG. 4 is output on the CRT screen. As shown in FIG. 4, when the basic surround mode is, for example, the surround normal, 'NORMAL SURROUND' indicating the basic surround mode is output at the top of the screen, and the speaker installed in relation to the television, that is, the center speaker (C) and the positions of the left / right speakers (L / R) and the surround speakers (SL / SR) are shown schematically.

Subsequently, the controller 2 determines whether the selection key 1f signal is input from the control signal input unit 1 (step 22), and the user selects the other surround mode to select the other surround mode. When the key signal is applied to the control unit 2, the control unit 2 proceeds to step 23 according to the determination result (YES) in step 22 and corresponds to the changed surround mode, for example, the surround wide mode. The OSD screen is displayed on the CRT screen.

The OSD screen output on the CRT screen in step 23 indicates not only the state in which the surround wide mode is set, but also the state in which the audio signal in the surround wide mode is output through the left / right speaker, the center speaker, and the surround speaker. .

Then, when the selection key 1f signal is input again from the control signal input unit 1, the control unit 2 indicates that the OSD screen outputted on the CRT screen is a surround pan tom mode and the surround pan tom mode. The voice signal at is output through the left / right speaker and the surround speaker.

While displaying the OSD screen for the changed surround mode on the CRT screen as described above, the controller 2 determines whether the surround key 1e signal is input again from the control signal input unit 1 (step 24). If the surround key 1e signal is not input, the process proceeds to step 26 according to the determination result of the step 24, and it is determined whether a predetermined time has elapsed while the surround key 1e signal is not input, and the determination As a result, if it is determined that the predetermined time has elapsed, the process proceeds to step 25 to be described later according to the determination result (YES). If it is determined that the predetermined time has not elapsed, the process proceeds to the step 24 according to the determination result (NO). It is determined whether the surround key 1e signal is input again from the control signal input unit 1.

On the contrary, if the surround key 1e signal is input again from the control signal input unit 1 as a result of the determination in step 24, the control unit 2 proceeds to step 25 according to the determination result, and the image signal processing unit 11 ) And a predetermined control signal to the OSD processing section 4 to delete the corresponding OSD screen output on the CRT screen in step 23.

Then, the control unit 2 sets the surround mode to the surround mode finally selected by the user so that the voice processing operation is performed accordingly.

That is, according to the present invention described above, when the user operates the surround key 1e configured on the control signal input unit 1 to set the surround mode, an OSD screen showing the output form of various surround modes is displayed on the CRT screen. As the output is displayed, the user can acquire various surround mode information through the OSD screen, and then select an appropriate surround mode.

As described above, according to a television having a display function for a surround setting state according to an embodiment of the present invention, the surround mode information is acquired through an OSD screen indicating the output mode of the surround mode that the user wants to select. By selecting the surround mode, you can improve your satisfaction with sound quality.

Claims (2)

In a television that detects a video signal and an audio signal from a composite video signal and performs playback accordingly, a control signal input unit (1) for setting a surround mode and selecting a specific surround mode from the surround mode, and The controller 2 outputs an OSD screen for the basic surround mode when the surround mode is set, and outputs an OSD screen for the corresponding surround mode when a specific surround mode is selected by the control signal input unit 1. An OSD processing unit 4 for generating an OSD text signal for configuring an OSD screen for each surround mode under the control of the control unit 2, and an OSD text output from the OSD processing unit 4 under the control of the control unit 2; And surround image processing means (11, 12) for inserting an OSD character for a signal on a CRT screen. With a display function for jeongsangtae television. The display function according to claim 1, wherein the control unit (2) changes the selection state of the surround mode based on the number of selection signals input from the control signal input unit (1). Equipped television.