KR0184967B1 - Sound level and tone control apparatus of television - Google Patents

Abstract

The present invention relates to a television having a volume and sound quality automatic adjustment function, which is capable of automatically adjusting the volume and sound quality according to the characteristics of each program based on a KBPS code signal carried in a broadcast signal. In the broadcasting system to be additionally transmitted, KBPS decoding means for detecting the KBPS code signal from a composite video signal, data storage means for storing the volume and sound quality control data corresponding to the characteristics of the program, the volume and sound quality control data Control means for reading the volume and sound quality control data from the data storage means on the basis of the voice processing means for processing the voice signal and the cog data detected by the KBPS decoding means based on this; Characterized in that configured to include.

Description

Television with automatic volume and sound quality control

1 is a block diagram showing the internal structure of a general television.

Figure 2 is a block diagram showing the main components of the television with a volume and sound quality automatic adjustment function according to an embodiment of the present invention.

3 is a flow chart for explaining the operation of the apparatus shown in FIG.

* Explanation of symbols for main parts of the drawings

1: antenna 2: tuner

3: IF amplification part 4: P / S separation part

5: voice detector 6: image detector

7: remote control unit 8: receiving unit

9: Channel Memory 10: Control Unit

11: OSD generator 12: External AV device

13 switching unit 14 voice processing unit

15: audio amplifier 16: image processing unit

17 mixer 18 CTR drive unit

19: first data storage unit 101: KBPS decoder unit

102: second data storage 103: code storage unit

104: remote control device 105: mode storage unit

106: control unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television (hereinafter referred to as a TV), and in particular, based on a KBPS (Korea Broadcast Program Service) code signal carried in a broadcast signal, the volume and sound quality output through a speaker are automatically adjusted according to the characteristics of the program. It relates to a TV with adjustable volume and automatic sound quality control.

1 is a block diagram showing the configuration of a general TV.

In the drawing, reference numeral 1 denotes an antenna, 2 denotes a tuner which tunes a predetermined broadcast signal from a broadcast signal received through the antenna 1 under the control of the controller 10 to be described later, and 3 denotes this tuner 2 IF amplification section for amplifying the IF signal output from the (), 4 is a surface acoustic wave filter for separating the image intermediate frequency signal (PIF) and the audio intermediate frequency signal (SIF) from the IF signal output from the IF amplifier (3) P / S separation unit 5 is an audio detector for detecting an audio signal from the SIF signal, and 6 is an image detector for detecting an image signal from the PIF signal.

Further, reference numeral 7 denotes a remote control unit for selecting a channel desired by the viewer or performing TV / AV mode switching, etc. 8 denotes a receiving unit for converting an infrared signal from the remote control unit 7 into an electric code signal. Is a channel memory in which predetermined channel data is stored, 10 is a control unit for controlling the entire device according to the remote control signal from the remote control unit 7, 11 is OSD pattern data for displaying the operation status of the TV to the viewer. OSD generating unit.

In the meantime, reference numeral 12 denotes an external AV device such as a VCR or a laser disc player, and 13 denotes an audio signal from the voice detector 5 and the image detector 6 according to the switching signal from the controller 10. A switching unit for selectively outputting video signals and audio and video signals from the external AV device 12.

In addition, although reference numeral 14 is not shown for the audio signal output from the switching unit 13, voice such as Base, Treble, Volume, etc. according to the control signal from the control unit 10. 15 is a voice amplifier which amplifies the voice signal processed by the voice processor 14 and outputs it to the speaker.

Although reference numeral 16 is not shown for the image signal output from the switching unit 13, the color, tint, brightness, etc. according to the control signal from the control unit 10; Is an image processing unit that outputs R (Red), G (Green), B (Blue), and luminance (-Y) signals corresponding to the image signal, and 17 denotes a color tone signal output from the image processing unit 16 ( A mixer for mixing and outputting the R, G, B) and luminance (-Y) signals and the R, G, B, and OSD blanking signals (Y ') output from the OSD generator 11, 18 is the mixer (17). And a CTR driver for driving the CTR based on the R, G, B and luminance (-Y) signals output from the same.

Further, reference numeral 19 is a first data storage unit for storing analog control data for the voice processor 14, that is, control data for controlling levels such as bass, treble, volume, and balance.

That is, in the above-described TV, when the viewer selects a specific channel broadcast or selects the external AV device 12 using the remote controller 7, the control unit 10 controls the tuner 2 or the switching unit 13. By controlling the control unit, the viewer can watch the desired program by outputting the video and audio signals from the broadcast channel selected by the viewer or the external AV device 12 through the speaker and the CRT.

When the viewer adjusts the analog control amount of the audio signal output through the speaker, that is, the bass, treble, volume, or balance control amount, by using the remote control device 7, the controller 10 controls the first data according to the viewer's operation amount. In addition to updating and registering the corresponding analog control data stored in the storage unit 19, the audio processing unit 14 is then controlled based on the updated and registered control data to provide the desired volume and sound quality.

However, in the above-described TV, since the adjustment state of the volume and sound quality output through the speaker is completely dependent on the operation of the viewer as described above, the volume and sound quality output through the speaker are actively controlled according to the type of broadcast program. It becomes difficult to adjust.

In other words, in TV broadcasting, various kinds of programs such as dramas, sports, movies, show programs, and news are provided. In such programs, adjusting the analog control amount according to the type increases the viewing effect. It becomes preferable. For example, a show program can emphasize live frequencies by emphasizing frequencies in the 100-500 hz range, and news programs can become rigid and dry by emphasizing frequencies of 1-2 kHz. Smoothing the delivery of news from anchors is more effective in enhancing viewing.

However, in the above-described TV, since the analog control amount is entirely dependent on the operation of the viewer, it is very cumbersome to set the analog control amount one by one according to the type of the program the viewer is watching. Even if it is adjusted, this becomes practically impossible because it is difficult to properly adjust the control amount.

Accordingly, the present invention has been made in view of the above-described problems, and an object of the present invention is to provide a TV having a volume and sound quality automatic adjustment function that can automatically adjust the analog control amount of volume and sound quality according to the type of broadcast program. .

In a broadcasting system in which a TV having a volume and sound quality automatic adjustment function according to the present invention for realizing the above object is transmitted by adding a KBPS code signal to a broadcast signal, KBPS decoding for detecting the KBPS code signal from a composite video signal Means, data storage means for storing the volume and sound quality control data corresponding to the characteristics of the program, voice processing means for processing a voice signal based on the volume and sound quality control data and the cog data detected by the KBPS decoding means And a control means for reading out the volume and sound quality control data from the data storage means and controlling the sound processing means based thereon.

According to the present invention having the above-described configuration, the type of broadcast program currently viewed by the viewer is determined based on the code signal detected by the KBPS decoding means. Then, based on the determination result, the voice processing means is controlled to automatically adjust the voice signal output to the speaker to an optimal state.

Therefore, the viewer can always listen to the optimal volume and sound quality according to the type of each program being viewed, thereby improving the viewing environment of the viewer.

Hereinafter, with reference to the accompanying drawings will be described an embodiment according to the present invention.

First, the basic outline of this invention is demonstrated.

Recently, in the broadcasting field, a service plan called Korea Broadcast Program Service (KBPS) is being prepared. The main concept of this service is to transmit a code (KBPS code) signal indicating the type of broadcast program, its start time and end time, etc., in the vertical blanking section of the broadcast signal so that it can be utilized for reservation recording. The present invention is characterized in that it detects such a KBPS code and determines the type of a broadcast program, and then appropriately adjusts a voice signal output through the speaker based on this.

Figure 2 shows the internal configuration of a TV with a volume and sound quality automatic adjustment function according to the present invention, the same reference numerals are attached to the same parts as Figure 1 in FIG.

In the drawing, reference numeral 101 denotes a KBPS decoder which detects the above-mentioned KBPS code signal from the composite video signal output from the image detector 6 and outputs the code signal accordingly, and 102 denotes characteristics of each program, that is, currently broadcasted. A second data storage unit for non-volatile storage of the optimum volume and sound quality control data corresponding to whether the program is a news program or drama program.

Reference numeral 103 denotes a code storage unit such as a ROM table in which address data of the second data storage unit 102 in accordance with the code signal detected by the KBPS decoder 101 is stored. A remote control device equipped with a mode selection key for selecting the automatic voice adjustment mode, 105 is a mode storage unit for storing the operation mode set by the remote control device 104.

Here, the storage state of the mode storage unit 105 is changed whenever the viewer operates the mode selection key of the remote control device 104. That is, when the viewer operates the mode selection key while the current voice control mode is set to the manual mode, the mode is changed to the automatic mode, and when the viewer operates the mode selection key again, the mode is changed to the manual mode. . In addition, this mode setting state can be displayed on the CRT as needed, which can be easily realized through a conventional method using the OSD generator 11.

Reference numeral 106 denotes a code signal decoded and input by the KBPS decoder 101 when the automatic voice adjustment mode is selected by the remote control apparatus 104 while performing normal control processing for the entire apparatus. On the basis of this, the control unit controls the voice processing unit 14 by reading the volume and sound quality control data from the second data storage unit 102.

Next, the operation of the apparatus having the above-described configuration will be described with reference to the operation flowchart shown in FIG.

When the viewer turns on the TV using the remote control device 104 (step ST1), the control unit 106 determines whether the modern voice adjustment state is the automatic mode or the manual mode based on the mode data stored in the mode storage unit 105. The reading is made (ST2 step).

In this case, when the voice adjustment state is in the manual mode, the normal voice control process is performed by controlling the voice processing unit 14 based on the voice control data registered in the first data storage unit 19 (ST3 step). ).

On the other hand, when it is determined in the automatic voice mode in step ST2, the code signal corresponding to the current broadcast program is detected from the KBPS decoder 101 to determine the type of broadcast program (step ST4). 2 Voice adjustment data corresponding to the program is read from the data storage unit 102, and the voice automatic control for controlling the voice processing unit 16 is executed.

If the operation is described in terms of hardware, the control unit 106, when a specific code signal is input from the KBPS decoder 101, the second data corresponding to the code data from the code storage unit 103 based on the code signal; The address data of the storage unit 102 is read. At this time, after the voice control data is read from the second data storage unit 102 based on the read address data, the broadcast program output through the CRT by controlling the voice processor 14 using the voice control data. The volume and sound quality of the audio signal are automatically adjusted according to the characteristics of.

In addition, in the above-described automatic voice adjustment operation, the viewer turns off the TV using the remote control device 104 (step ST6), or sets the voice adjustment mode to the manual mode again so that the control unit 106 performs the control in step ST2. It will continue to run until the mode state is recognized.

Accordingly, according to the embodiment, it is possible to automatically adjust the volume and sound quality according to the characteristics of each broadcast program based on the detection of the KBPS code signal from the broadcast signal.

In addition, this invention is not limited to the said Example, It can variously deform and implement within the range which does not deviate from the technical summary of this invention.

As described above, according to the present invention, it is possible to realize a TV having a volume and sound quality automatic adjustment function that automatically adjusts the volume and sound quality of the audio signal output to the speaker according to the characteristics of the broadcast program.

Claims (3)

In a broadcasting system in which a KBPS code signal is added to a broadcast signal for transmission, KBPS decoding means for detecting the KBPS code signal from a composite video signal, and data storage means for storing volume and sound quality control data corresponding to characteristics of a program. And a voice processing means for processing a voice signal based on the volume and sound quality control data and the volume and sound quality control data from the data storage means based on the cog data detected by the KBPS decoding means. Television with volume and sound quality automatic control, characterized in that it comprises a control means for controlling the processing means. 2. The apparatus according to claim 1, further comprising operation mode selection means for the viewer to select a volume and sound quality automatic adjustment function, and mode storage means for storing a selection state by the operation mode selection means. Means for executing the automatic control operation for the voice processing means only when the automatic adjustment mode is set in the mode storage means. The television set according to claim 1 or 3, further comprising display means for displaying a mode state stored in the mode storing means to a viewer.