KR100223778B1 - Television having voice information funtion of channel - Google Patents

Abstract

An object of the present invention is to provide a television equipped with a voice guidance function of a current channel capable of outputting voice information according to current channel guidance through a speaker when a channel voice guidance mode is set by a user, A voice memory 46 in which voice data for present channel guidance is stored, a control unit 42 for controlling the operation of the control unit 42, A voice edit control device 44 for synthesizing the voice data stored in the voice memory 46 and the voice data read from the voice memory 46 to generate voice data according to the current channel guidance, A digital-to-analog converter

An audio signal processor 50 for separately reproducing the analog-converted audio signal and the audio signal of the viewing channel under the control of the controller 42, The collector terminal is connected to the output terminal of the audio signal processing unit 50 so that the volume of the audio signal is adjusted to be lower than the volume of the audio signal according to the current channel guidance, and the base terminal is connected to the power terminal Vcc The emitter terminal is connected to a variable resistor VR whose resistance value is adjusted under the control of the controller 42 and connected to a transistor Q for bypassing the audio signal of the audio channel output from the audio signal processor 50, A sound attenuation unit 51 for attenuating the voice signal,

And an audio amplifier 52 for outputting the audio signal output from the audio decoder 50 and the audio signal according to the current channel guide and the audio signal of the audio channel whose volume has been attenuated by the volume attenuator 51 to be outputted through the speaker .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to a television having a voice guidance function of a current channel, and more particularly, to a television having a voice guidance function of a current channel which is capable of outputting voice information according to the current channel guidance through a speaker It is about television.

FIG. 1 is a block diagram showing a conventional television set, which will be described in detail with reference to the drawings.

Reference numeral 10 in the figure denotes a control signal input unit for constituting a general function equipped in the television, which is constituted by a control panel installed in a front part of the corresponding television or a remote control for remotely controlling the television, A control unit 12 controls the overall operation of the television set so that the overall operation of the television, for example, the channel selection operation of a specific channel is performed or the volume level or the screen adjustment state is controlled based on the control signal input from the control signal input unit 10 .

Reference numeral 14 denotes a channel data storage unit for storing channel data for channel selection of a specific channel. Reference numeral 16 denotes a channel data storage unit for storing character information for function control designated by the control signal input unit 10 under the control of the control unit 12. [ And 18 denotes an OSD processing unit for generating an OSD character signal for performing display of a specific channel among a plurality of broadcast channels received through an antenna based on a channel selection voltage VT applied from the control unit 12 And 20 denotes an IF amplifier for amplifying the IF frequency of the broadcast signal selected by the tuner 18. [

Reference numerals 22, 24 and 26 denote voice signal processing means for reproducing the voice signal among video / audio signals for a specific channel selected through the tuner 18. Reference numeral 22 denotes a surface acoustic wave filter (SAW (SIF) detector for detecting only a voice intermediate frequency signal (SIF) from an IF signal amplified and output by the IF amplifying unit 20 using a filter And a voice signal processing unit for processing the SIF signal output from the SIF detector 22 into a voice processing mode such as a volume adjustment, a voice surround or a voice multiply processing set by the control signal input unit 10, And a voice amplifying unit for amplifying the voice signal processed by the signal processing unit 24 and reproducing the voice signal through the speaker SP connected at the subsequent stage.

Reference numerals 28, 30, and 32 shown in FIG. 1 are audio signal processing means for reproducing the audio signal among video / audio signals for a specific channel selected through the tuner 18, The IF signal amplified by the IF amplifying unit 22 using the surface acoustic wave filter (SAW filter)

Picture Intermediate Frequency), 30 denotes a PIF detector outputting a PIF signal output from the PIF detector 28 under the control of the controller 12, to a video related function designated by the control signal input unit 10, for example, And an OSD character signal generated by the OSD processing unit 16 on the screen and outputting an R / G / B / Y signal corresponding to the OSD character signal. 32 denotes a video signal processing unit,

Amplifies the image signal processed by the image processor 30 and displays the amplified image signal on the CRT device connected to the subsequent stage.

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

When a control signal for turning on the power and selecting a channel is input from the control signal input unit 10, the control unit 12 turns on the power of the corresponding television based on the control signal, The tuner 18 reads the tuning voltage VT corresponding to the selected tuning voltage VT from the channel data storing unit 14 and applies the tuning voltage VT to the tuner 18, And performs a channel selection operation on the channel.

Then, the tuner 18 applies a broadcasting signal for the selected channel to the IF amplifying unit 20. The IF amplifying unit 20 amplifies the IF signal of the broadcasting signal, and then amplifies the SIF To the detector (22) and the PIF detector (28).

Here, the SIF detector 22 detects only the SIF (audio intermediate frequency) signal from the IF signal output from the IF amplifier 20, applies the detected SIF to the audio signal processor 24 connected to the subsequent stage, The processing unit 24 performs voice processing for the corresponding SIF signal under the control of the control unit 12 according to the volume level set by the control signal input unit 10 or the voice multiplexing process, The audio amplifying unit 26 amplifies the audio signal from the audio signal processing unit 24 with a predetermined amplification degree and applies the amplified audio signal to the speaker SP connected at the subsequent stage, The audio signal of the channel is outputted.

In addition, the PIF detector 28 detects only the PIF (video intermediate frequency) signal from the IF signal output from the IF amplifier 20 and applies the detected PIF to the video signal processor 30 connected to the subsequent stage, The signal processing unit 30 performs image processing such as color / brightness / tint / sharpness on the PIF signal under the control of the controller 12, and then applies the image processing to the image amplifying unit 32 connected to the subsequent stage.

In particular, the video signal processing unit 30 performs insertion processing of an OSD character signal provided from the OSD processing unit 16 under the control of the control unit 12. For example, when the control signal input unit 10 receives the ' The control unit 12 applies a predetermined control signal to the OSD processing unit 16 to receive an OSD character string indicating the channel selection status from the OSD processing unit 16, , 'CH 7' are generated and applied to the image signal processing unit 30.

As described above, the video signal processing unit 30 performs image processing, inserts an OSD character string, and then applies a corresponding video signal to the video amplification unit 32. The video amplification unit 32, The image signal of a specific channel is reproduced and output through the CRT by amplifying the image signal and then applying the amplified image signal to the CRT.

On the other hand, when a user selects a specific channel, for example, 'channel 7' in the general television set having the above configuration, an OSD character for displaying a channel, for example, 'CH 7' The OSD image signal is blanked for outputting the OSD character, so that the stability and satisfaction of the screen output on the CRT is lowered.

When the user is out of the visible range for viewing the OSD characters displayed on the CRT screen of the television, he or she enters into the visible range area and recognizes the current channel of the TV. The OSD character for the channel display must be checked to confirm the current channel.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a television having a voice guidance function of a current channel capable of outputting voice information according to a current channel guidance through a speaker, The purpose is to provide.

According to an embodiment of the present invention for realizing the above object, there is provided an apparatus for controlling a channel, comprising: a controller for controlling output of a voice signal according to a current channel guide when setting a channel voice guidance mode by a control signal input unit; A voice editing control device for synthesizing the voice data stored in the voice memory and the voice data read out from the voice memory under the control of the control section to generate voice data according to the current channel guidance, An audio signal processor for separately reproducing the analog-converted audio signal and the audio signal of the viewing channel under the control of the control unit, a digital-to-analog converter for converting the audio signal of the viewing channel output from the audio signal processor, To be adjusted to be lower than the volume of the voice signal according to the current channel guidance A collector terminal is connected to the output terminal of the base audio signal processing unit, a base terminal is connected to a power supply terminal Vcc via a resistor R1, and an emitter terminal is connected to a variable resistor VR whose resistance is adjusted under the control of the control unit, And a transistor (Q) connected to the audio signal processing unit and bypassing the audio signal of the audio channel output from the audio signal processing unit to attenuate the audio signal; and a sound attenuator for outputting audio signals And a voice amplifying unit for amplifying a voice signal of the view channel whose volume has been attenuated by the volume attenuator and outputting the amplified voice signal through a speaker.

According to another embodiment of the present invention for realizing the above object, there is provided a control method for a mobile communication terminal, comprising: a control unit for controlling output of a voice signal according to a current channel guidance upon setting a channel voice guidance mode by a control signal input unit; A voice editing control device for synthesizing the voice data stored in the voice memory and the voice data read out from the voice memory under the control of the control section to generate voice data according to the current channel guidance, An audio signal processing unit for separately reproducing the analog-converted audio signal and the audio signal of the viewing channel under the control of the control unit; A switch unit for switching an output path of a voice signal according to the channel guidance, An amplifying unit for amplifying a voice signal according to the current channel guidance switched by the switch unit when the null voice guidance mode is set; and an amplifying unit for amplifying a voice signal of the viewing channel from the voice signal processing unit, And a voice amplifying unit for amplifying the voice signal according to the current channel guidance and outputting the voice signal amplified twice as much as the voice signal of the viewing channel to the speaker.

According to the present invention configured as described above, when the user sets the channel voice guidance mode, voice information for the current channel, for example, 'the channel being viewed is 7' is output from one side of the television, for example, L- At the same time, the audio signal of the channel being watched is reproduced and outputted from the other side of the television, for example, the R-speaker.

1 is a block diagram of a conventional television,

2 is a diagram showing an example of screen display upon channel selection in a conventional television,

3 is a block diagram showing a main configuration of a television having a voice guidance function of a current channel according to an embodiment of the present invention;

4 is a block diagram showing a main configuration of a television equipped with a voice guidance function of a current channel according to another embodiment of the present invention;

FIG. 5 is a flowchart illustrating an operation of a television having a voice guidance function of a current channel according to an embodiment of the present invention;

6 is a flowchart illustrating an operation of a television equipped with a voice guidance function of a current channel according to another embodiment of the present invention.

Description of the Related Art [0002]

10, 40: a control signal input unit, 12, 42:

14: Channel data storage unit, 16: OSD processing unit,

18: tuner, 20: IF amplification unit,

22: SIF detection unit, 24,50,60: audio signal processing unit,

26, 52, 66: voice amplification unit, 28: PIF detection unit,

30: Image signal processing unit, 32: Image amplification unit,

44: voice edit control device, 46: voice memory,

48: D / A converter, 51: volume attenuator,

62: switch section, 64: amplifying section,

54,68: L-speaker, 56,70: R-speaker,

VR: Variable resistance.

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

3 is a block diagram showing a main configuration of a television equipped with a voice guidance function of a current channel according to an embodiment of the present invention.

Reference numeral 40 denotes a control signal input unit configured with a channel voice guidance button 40a for setting a voice guidance function of the current channel and reference numeral 42 denotes a channel voice guidance mode set by the control signal input unit 40 The control unit 42 controls the entire apparatus to reproduce and output the voice signal through the L-speaker 54. Reference numeral 44 denotes a control unit for controlling the overall operation of the apparatus such that voice data stored in the voice memory 46 And performs a speech synthesis function for the speech data of the current channel and the pre-stored speech data. Reference numeral 46 denotes a speech memory for storing speech data according to the viewable channel.

Reference numeral 48 denotes a digital / analog converter (to be referred to as a D / A converter hereinafter) for analog-converting the speech data for speech presently synthesized and output by the speech editing control device 44, The SIF signal S1 output from the SIF detector 22 (see FIG. 1) and the audio signal S output from the D / A converter 48 (FIG. 1) are output on the basis of a predetermined control signal CS2 applied from the control unit 42 (S2) is set as a separate channel, and then voice processing is performed to output the voice signal of the current channel that has been subjected to the voice processing to the R-channel, and the voice signal to be output to the L- Signal processor.

Here, the volume of the audio signal of the current channel, which is provided between the R-channel of the audio signal processing unit 50 and the audio amplification unit 52 and output from the R-channel of the audio signal processing unit 50, And the volume attenuation stage 51 is connected to the R-channel of the audio signal processing unit 50. The collector terminal is connected to the R-channel of the audio signal processing unit 50, And a variable resistor VR connected to the emitter terminal of the transistor Q. The variable resistor VR is connected to the control terminal of the variable resistor VR, The resistance value is adjusted.

Reference numeral 52 denotes a speaker for amplifying the voice signal input through the L-channel and the R-channel by separate paths and applying the amplified voice signal to the L-speaker 54 and the R-speaker 56, respectively 54 and 56 are L-speakers for outputting a voice signal of the current viewing channel and outputting a voice signal for the current channel and a voice signal for channel guidance when the channel voice guidance mode is set, and an L- Represents a speaker.

Next, the operation of the television having the voice guidance function of the current channel having the above-described configuration will be described in detail with reference to the attached flowchart shown in Fig.

The control unit 42 determines whether the channel voice guidance button 40a provided in the control signal input unit 40 is operated in step 80. If the channel voice guidance button 40a is operated The control unit 42 applies the operation signal ENA to the audio editing control unit 44 and outputs the operation signal ENA to the audio editing control unit 44. [ And the control signal CS1 according to the current channel is applied to the voice edit controller 44 (step 81).

The voice edit control device 44 reads voice data for voice guidance according to the current channel, for example, '7', stored in the voice memory 46 based on the corresponding control signal CS1, For example, a voice signal for present channel guidance is synthesized by synthesizing voice data for a previously stored channel voice guidance, for example, 'the channel being viewed is xxx', for example, 'the channel being watched is 7' Signal to the D / A converter 48 connected to the subsequent stage (step 82).

Next, the D / A converter 48 converts the digital signal of the digital component into an analog component and then applies the analog component to the audio signal processor 50 (step 83).

At the same time, the control unit 42 applies a predetermined control signal CS2 to the audio signal processing unit 50 so that the audio signal processing unit 50 can receive the audio signal of the current channel through the L-channel and the R- And a voice signal according to the channel guidance.

The controller 42 controls the variable resistor VR of the volume attenuator 51 so that the resistance value of the variable resistor VR is lowered. Since the resistance value of the variable resistor VR is lowered A part of the voice signal output through the R-channel of the voice signal processing unit 50 is bypassed through the transistor Q of the volume attenuating unit 51 so that the volume of the voice signal is half-muted ).

In this case, the voice amplifying unit 52 amplifies the voice signal according to the channel guidance inputted to the L-input terminal and the voice signal of the current channel inputted to the R-channel and outputs the amplified voice signal to the L- (That is, the volume of the audio signal according to the channel guidance is a predetermined large value) through the L-speaker and the R-speaker 56, The voice signal according to 'the channel being viewed is 7' and the voice signal of the current channel are simultaneously output (step 85).

Then, the control unit 12 determines whether the channel voice guidance is terminated (step 86). If the end of the channel voice guidance is sensed (YES in step 86), the control unit 12 determines whether the variable resistance VR of the volume attenuation unit 51 Speaker 54 and the R-speaker 56 so that the audio signal of the current channel is reproduced and output by applying the predetermined control signal to the audio signal processing unit 50. The L- And then the above process is terminated.

Hereinafter, a television having a voice guidance function of a current channel according to another embodiment of the present invention will be described in detail.

4 is a block diagram showing a main configuration of a television equipped with a voice guidance function of a current channel according to another embodiment of the present invention.

Reference numeral 60 denotes a voice signal S2 for channel guidance outputted from the D / A converter 48 (refer to FIG. 3) based on the control signal CS2 applied from the controller 42 ) And the SIF signal S1 output from the SIF detector 22 (see FIG. 1) are set as separate channels, and then voice processing is performed to output the speech signal of the current channel subjected to the speech processing to the R-channel, And a voice signal processor for outputting the voice signal according to the channel guidance to the L-channel.

The L channel of the audio signal processing unit 60 and the audio amplification unit 66 are connected to each other under the control of the control unit 12 in accordance with the channel guidance outputted from the L channel of the audio signal processing unit 60 A switch unit 62 for setting an output path for a voice signal, and an amplifying unit 64 for amplifying a voice signal according to the channel guidance set by the switch unit 62 in the channel voice guiding mode, Respectively.

In the figure, reference numeral 66 denotes an amplifier for amplifying a voice signal input through the L-channel and the R-channel by separate paths, respectively, and for amplifying the amplified voice signal to the L- And 68 and 70 typically output voice signals of the current viewing channel. When the channel voice guidance mode is set, the L-speakers 71 and 72 output voice signals for channel guidance and voice signals of the current channel at the same time, And an R-speaker.

Next, the operation of the television having the voice guidance function of the current channel according to another embodiment of the present invention will be described in detail.

The control unit 42 determines whether the channel voice guidance button 40a provided in the control signal input unit 40 has been operated in step 90. If the channel voice guidance button 40a is operated The control unit 42 applies the operation signal ENA to the audio editing controller 44 so that the audio editing controller 44 outputs the operation signal ENA to the audio editing controller 44. [ And the control signal CS1 according to the current channel is applied to the audio editing controller 44 (step 91).

The voice edit control device 44 reads voice data for voice guidance according to the current channel, for example, '7', stored in the voice memory 46 based on the corresponding control signal CS1, For example, a voice signal for present channel guidance is synthesized by synthesizing voice data for a previously stored channel voice guidance, for example, 'the channel being viewed is xxx', for example, 'the channel being watched is 7' And the signal is applied to the D / A converter 48 connected to the subsequent stage (step 92).

Then, the D / A converter 48 converts the digital signal of the digital component into an analog component and then applies the analog component to the audio signal processor 50 (step 93).

At the same time, the control unit 42 applies a predetermined switch signal SW to the switch unit 62 to set the path of the voice signal output from the L-channel of the voice signal processing unit 60 to the amplification unit 64 (Step 94).

When the audio signal according to the channel guidance output from the L-channel of the audio signal processing unit 60 is applied to the amplification unit 64 by the switching result of the switch unit 62, Amplifies the voice signal with a predetermined amplification degree, and then applies the amplified voice signal to the L-input end of the voice amplifying unit 66 connected to the rear end. Here, the voice amplifying unit 66 amplifies the voice signal according to the channel guidance inputted to the L-channel and the voice signal of the current channel inputted to the R-channel with a predetermined amplification degree and then amplifies the L- 68 and the R-speaker 70, respectively. Accordingly, the audio signal in accordance with the channel guidance output from the L-channel from the audio amplifier 66 is amplified by the amplification unit 64 and the audio amplification unit 66, respectively (step 95 ).

On the other hand, a channel guide having a different volume from the L-speaker 68 and the R-speaker 70 (that is, the volume of the audio signal according to the channel guidance is large) And the voice signal of the current channel is outputted simultaneously (step 96).

Then, the control unit 12 determines whether the channel voice guidance is completed (step 97). If the end of the channel voice guidance is detected (YES in step 97), the control unit 12 applies a predetermined control signal to the switch unit 62 The output path of the voice signal according to the channel guidance outputted from the L-channel of the voice signal processing unit 60 is set to the voice amplifying unit 66 side, and then the above process is terminated.

As described above, according to the operation of the television having the voice guidance function of the current channel according to the embodiment of the present invention, when the user sets the channel voice guidance mode, the volume of the voice signal of the channel being watched is attenuated at the predetermined level The volume of the audio signal according to the current channel guidance is outputted simultaneously through the L-speaker and the R-speaker in a state of a preset level, so that the user who is out of the viewing range of the television can easily check the channel information currently being viewed .

In addition, since the OSD characters for channel confirmation are not displayed on the CRT, the satisfaction of the playback screen can be improved.

The present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the technical spirit of the present invention.

Claims (2)

A control unit 42 for controlling the output of a voice signal according to the current channel guidance when the channel voice guidance mode is set by the control signal input unit 40, An audio memory 46 in which audio data for present channel guidance is stored, A voice editing control device 44 for synthesizing voice data previously stored under the control of the control section 42 and voice data read from the voice memory 46 to generate voice data according to the current channel guidance, A digital / analog converter 48 for analog-converting the voice data output from the voice edit controller 44, An audio signal processor 50 for separately reproducing the analog-converted audio signal and the audio signal of the viewing channel under the control of the controller 42, The collector terminal is connected to the output terminal of the audio signal processing unit 50 so that the volume of the audio signal of the audio channel outputted from the audio signal processing unit 50 is adjusted to be lower than the volume of the audio signal according to the current channel guide, A power supply terminal Vcc is connected via a resistor R1 and a variable resistor VR whose resistance value is adjusted under the control of the control unit 42 is connected to the emitter terminal and is output from the audio signal processing unit 50 A volume attenuator 51 composed of a transistor Q for bypassing a voice signal of a viewing channel to attenuate the voice signal, An audio amplifying unit 52 for amplifying the audio signal output from the audio signal processing unit 50 and following the current channel guidance and the audio signal of the audio channel whose volume is attenuated by the volume reducing unit 51, And displaying the current channel on the display unit. A control unit 42 for controlling the output of a voice signal according to the current channel guidance when the channel voice guidance mode is set by the control signal input unit 40, An audio memory 46 in which audio data for present channel guidance is stored, A voice editing control device 44 for synthesizing voice data previously stored under the control of the control section 42 and voice data read from the voice memory 46 to generate voice data according to the current channel guidance, A digital / analog converter 48 for analog-converting the voice data output from the voice edit controller 44, A voice signal processor 60 for separately reproducing the analog-converted voice signal and the audio signal of the viewing channel under the control of the controller 42, A switch unit 62 for switching the output path of the audio signal according to the current channel guidance from the audio signal processing unit 60 under the control of the control unit 42, An amplifying unit 64 for amplifying a voice signal according to the current channel guidance switched by the switch unit 62 when the channel voice guidance mode is set, Amplifies the audio signal of the viewing channel from the audio signal processing unit 60 and further amplifies the audio signal according to the current channel information amplified by the amplifying unit 64 so as to amplify the audio signal of the viewing channel twice And a voice amplifying unit (66) for outputting the voice signal to the speaker on the basis of the voice signal.