KR19980051731A - Television receiver with wireless speaker proper distance display function - Google Patents

Abstract

The present invention relates to a television receiver using a wireless speaker as an external speaker, and more particularly, to sound size control means for adjusting a sound signal of a specific size to a wireless speaker provided according to an input first control signal, and the sound. Sound size sensing means for taking a sound signal expressed by the wireless speaker by the size control means to change the size of the electrical signal, and outputs the first control signal to control the sound size control means and the sound size detection means A control unit for calculating a distance according to the attenuation degree of the sound size by comparing the magnitude data of the sound received through the control unit, and determining whether the calculated distance is optimal, and outputting a second control signal according to the control unit; and a second output unit from the control unit. According to the control signal, the corresponding wireless speaker on the screen When a television receiver having a wireless speaker suitable distance display function is provided, the apparatus includes an OSD character generator for outputting related data so as to display the increase or decrease. There is an optimal distance to be away, but the conventional technology can solve the problem that the user can not accurately recognize this and can not be provided with a higher quality service.

Description

Television receiver with wireless speaker proper distance display function

The present invention relates to a control device according to the case of using a wireless speaker as an external speaker in a television receiver. In particular, the present invention relates to a criterion that can properly maintain a distance away from a television receiver. The present invention relates to a television receiver having an appropriate distance display function of a wireless speaker for increasing a viewer's satisfaction.

A typical television receives and demodulates a broadcast signal transmitted from a broadcasting station, and outputs the demodulated signal as a video signal and an audio signal through a CRT and a speaker. At this time, referring to Figure 1 attached to the configuration and function of the TV having a wireless speaker in addition to the speaker built as a speaker for expressing sound as follows.

1 is a block diagram illustrating a schematic configuration and function of a television using a wireless speaker as an external speaker. In FIG. 1, reference numeral 101 denotes an antenna, 102 denotes an RF amplifying unit for amplifying a radio frequency signal (RF) received through the antenna 101, and 103 denotes an RF amplification unit. An intermediate frequency signal (hereinafter referred to as IF) which receives and mixes the radio frequency signal output from the unit 102 and the oscillation frequency signal output from the local oscillation circuit 117 which will be described later. 1 indicates a mixer. Also, reference numeral 104 denotes an IF amplifying unit for amplifying the intermediate frequency signal output from the first mixer 103, and 105 denotes an image intermediate frequency signal (PIF) in the intermediate frequency signal output from the IF amplifying unit 104. And a P / S separation unit such as a surface acoustic wave filter for separating the voice intermediate frequency signal SIF, and 106 denotes a voice signal from the voice intermediate frequency signal SIF output from the P / S separation unit 105. 107 denotes an audio detector for detecting an image signal from an image intermediate frequency signal PIF output from the P / S separation unit 105.

In addition, reference numeral 108 denotes a remote control device which allows a viewer to select a desired channel or to select each mode of the television, for example, a TV / AV mode, and 109 denotes an electrical signal of an infrared signal from the remote control device 108. A receiver converts a code signal, 110 denotes a channel memory in which predetermined channel data is stored, and 111 denotes a microprocessor that controls the entire system according to an input signal from the remote controller 108. In addition, reference numeral 112 denotes a screen display for overlapping and outputting a character or a picture, etc., on a screen on which a broadcast signal is output separately from the broadcast signal according to a control signal of the microprocessor 111. (Hereinafter referred to as OSD), where device 113 is a PWM generator for generating a predetermined pulse width modulation (PWM) signal according to a control signal from the microprocessor 111, and 114 is the above-mentioned. An integration circuit for generating a predetermined level signal by integrating the PWM signal output from the PWM generator 113 is shown. At this time, if the viewer selects a predetermined channel using the remote control device 108, the microprocessor 111 reads out the channel data corresponding to the channel selected by the viewer from the channel memory 110, and then based on the selected channel. By controlling the PWM generator 113 to generate a predetermined PWM signal, the PWM signal is output as a voltage control signal corresponding to the channel selected by the viewer through the integration circuit 114 at this time.

In addition, reference numeral 115 is provided for a precise tuning operation, and denotes an Auto Fine Tunning circuit (hereinafter referred to as AFT) circuit 115, and 116 is a voltage signal applied from the integrating circuit 114. An adder for adding a voltage signal applied from the AFT circuit 115 is shown, and 117 shows a local oscillating circuit for outputting a predetermined oscillation frequency. In addition, reference numeral 118 denotes the image detector 134 by controlling the amplification degree of the above-described RF amplifier 102 and the IF amplifier 104 based on the level of the image signal detected by the image detector 107. Auto Gain Control (hereinafter referred to as AGC) circuit which controls the video signal output level from 107 constantly. In addition, reference numeral 119 denotes an external AV device such as a VCR or a laser disc player, and 120 denotes the voice detector 106 and the image detector 107 according to the switching signal from the microprocessor 111. A first switching unit for selectively outputting audio and video signals from the external AV device 119 and audio and video signals.

Further, reference numeral 123 is not shown for the image signal output from the first switching unit 120, but according to the control signal from the microprocessor 111, Color, Tint, Brightness A video processing unit which processes (Brightness) and the like and outputs R (Red), G (Green), and B (Blue) signals corresponding to the video signal. The RGB signal output from the image processor 123 is mixed with the RGB and OSD blanking signal Y ′, which are the output signals of the OSD generator 112 described above, in a second mixer indicated by reference numeral 124, and is output. 125 denotes a CRT driver for driving the CRT based on the RGB signal output from the mixer 124. Further, reference numeral 121 is not shown for the audio signal output from the first switching unit 120, but according to the control signal from the microprocessor 111, Base, Treble, Volume ( A voice processing unit for executing voice processing such as a volume), and 122 denotes a voice amplifying unit for amplifying and outputting the voice signal processed by the voice processing unit 121 to a speaker. In this case, the voice signal output from the first switching unit 120 and transmitted to the voice processor 121 is transmitted through the pilot signal detector 126 indicated by reference numeral 126, and the pilot signal detector 126 voices the voice signal. The pilot signal is detected from the signal to determine the presence or absence of a stereo signal, and the signal is transmitted to the microprocessor 111.

In addition, an external output terminal unit 127 for receiving a voice signal output from the voice processing unit 121 and outputting it to the outside, an audio unit AU for amplifying the voice signal output from the external output terminal unit 127; The wireless signal transmitter 131 converts the voice signal output from the audio unit AU into a wireless signal and outputs the wireless signal, and converts the wireless signal transmitted from the wireless signal transmitter 131 into a voice signal. It consists of a wireless signal receiving unit 132 to transmit to the wireless speaker. In this case, the audio unit AU includes a second switching unit 128 for selectively switching its own voice signal and an external voice signal, and audio amplification for amplifying the voice signal selected by the second switching unit 128. The control unit 130 controls the second switching unit 128 and the audio amplifier 129 under the control of the unit 129 and the microprocessor 111. In particular, only one audio unit AU is provided, for example, 4-5, which is connectable to the external output terminal unit 127, and thus 4-5 wireless speakers are provided.

That is, in the above-described TV, when the viewer selects the TV / AV mode using the remote control device 108, the microprocessor 111 controls the switching unit 120 to control the voice detector 106 and By selectively outputting the video and audio signals from the video detector 107 and the video and audio signals from the external AV device 119 to the video processor 123 and the audio processor 121, the viewer Video and audio played back by the external AV device 119 can be heard and viewed through the CRT and the speaker of the TV. In addition, when the user turns on the wireless speaker, when the stereo signal is received, the voice signal is transmitted to the wireless speaker through the external output terminal unit 127 so that the user can listen to the stereo voice signal through the external wireless speaker.

However, in the current trend of increasing the number of wireless speakers according to the user's desire for surround sound and having to perform a unique function for each speaker, it is necessary that each speaker be separated from the position of the television receiver in order to provide realistic sound. There exists a distance of, but the user can not recognize this accurately, a problem that can not be provided with a higher quality service.

An object of the present invention is a television receiver having a wireless speaker proper distance display function to receive the sound expressed by each wireless speaker, calculate the distance through the size and inform the user through the OSD text display function. To provide.

A feature of the present invention for achieving the above object of the present invention, in a television receiver using a wireless speaker as an external speaker, is adjusted so that a sound signal of a specific size is expressed by a wireless speaker provided according to the first control signal A sound size control means, a sound size sensing means for taking a sound signal expressed by the wireless speaker by the sound size control means and converting it into a magnitude of an electrical signal, and outputting the first control signal to control the sound size Control unit for controlling the means and comparing the magnitude data of the sound received through the sound size sensing means to calculate the distance according to the degree of attenuation of the sound size, determine whether the calculated distance is optimal and output the second control signal accordingly And a corresponding wireless speaker on the screen according to the second control signal output from the controller. There is provided a television receiver having a wireless speaker fair distance display function, comprising: OSD character generation unit for outputting the associated data to display the increased or decreased depending on whether the distance from Li.

1 is a block diagram illustrating a configuration and a function of a television having a general wireless speaker function.

2 is an exemplary configuration diagram of a television receiver having a wireless speaker proper distance display function according to the present invention.

Explanation of symbols on the main parts of the drawings

101: antenna 102: RF amplifier

103: mixer 104: IF amplifier

105: P / S separation unit 106: voice detector

107: Image detector 108: Remote control device

109: receiver 110: channel memory

111: microprocessor 112: on-screen display (OSD) device

113: PWM generating unit 114: Integrating circuit

115: automatic fine tuning (AFT) circuit 116: adder

117 local oscillation circuit 118 automatic gain control (AGC) circuit

119: external AV device 120: switching unit

121: voice processing unit 122: voice amplifying unit

123: image processing unit 124: mixer

125: CRT driver 126: pilot signal detector

127: external output terminal AU: audio

128: second switching unit 129: audio amplifier

130 control unit 131 wireless signal transmission unit

132: wireless signal receiver 133: wireless speaker

134: sound receiving unit

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

FIG. 2 is a diagram illustrating a configuration of a television receiver having a function of properly displaying a wireless speaker according to the present invention. A configuration that performs the same function as the prior art is given the same reference numeral as in FIG. 1, and detailed description thereof will be omitted. In FIG. 2, the functions of additional components different from those of FIG. 1 will be described below.

Reference numeral 134 denotes a sound receiver, and receives the sound expressed by the wireless speaker indicated by reference numeral 133, detects the intensity of the sound, and outputs the sound. In addition, an additional function of the microprocessor 111 given the same reference number may be selected based on the size of the signal input through the audio receiver 134 after selecting the size of the signal output through the audio unit AU. At this time, it is determined how much distance the speaker 133 maintains. Further, if it is determined that the presence position of the speaker 133 does not maintain the optimum distance, the OSD generator 112 is controlled to display a message indicating that the position of the speaker 133 is incorrect on the screen on the CRT. The other structure is the same as the conventional structure, and the function is also the same.

Looking at the preferred operation example of the television receiver having the wireless speaker control apparatus according to the present invention having the above configuration, the microprocessor 111, such as stereo through the characteristics of the received voice detected by the pilot signal detector 126 If it is determined that it is necessary to listen through the surround sound of the control unit 130 in the audio unit (AU) to output the sound with a constant amplification gain. In this case, the amplified sound signal is output as a wireless signal through the wireless transmitter 131, which is expressed by the wireless speaker 133 through the wireless receiver 132. In this case, the microprocessor 111 determines the magnitude of the signal output from the sound receiver 134 and input to the microprocessor 111. The sound receiver 134 receives the sound expressed by the wireless speaker 133 and detects the intensity of the sound. The microprocessor 111 measures the magnitude of the signal input through the sound receiver 134. As a reference, it is determined how much distance the speaker 133 currently maintains.

If it is determined that the presence position of the speaker 133 does not maintain the optimal distance through the above process, the microprocessor 111 controls the OSD generator 112 to display the speaker 133 on the screen on the CRT. Will display a message that the location is incorrect.

When providing a television receiver having a wireless speaker proper distance display function according to the present invention operating as described above, there is an optimal distance that must be away from the position of the television receiver for each speaker to provide a realistic sound. The user can solve the problem that the user can not accurately recognize this and can not be provided with a higher quality service.

Claims (1)

In a television receiver using a wireless speaker as an external speaker, Sound size control means for adjusting a sound signal having a specific size to be output to the wireless speaker provided according to the first control signal; Sound size detecting means for taking a sound signal expressed by the wireless speaker by the sound size control means and changing the sound signal to an electric signal; Outputs the first control signal to control the sound size control means, compares the magnitude data of the sound received through the sound size detection means, calculates the distance according to the attenuation degree of the sound size, and determines whether the calculated distance is optimal. A control unit for determining and outputting a second control signal according thereto; And an on-screen display (OSD) character generator for outputting relevant data so as to display whether or not the corresponding wireless speaker increases or decreases according to the distance away from the optimum distance according to the second control signal output from the controller. Television receiver having a distance display function.