KR19980047368A - Television receiver with increase and decrease of volume level function - Google Patents

Abstract

An object of the present invention is to provide a television receiver having a volume level increase / decrease variation function to arbitrarily change and store the reference unit for the acoustic fluctuation, and to adjust the level of the sound based on the changed data in the event of a later fluctuation request. To provide. The configuration of the present invention amplifies the sound signal input by varying the amplification gain according to the control signal and then outputs to the speaker and a plurality of control signals for setting the increase and decrease of the sound fluctuations set by the user A control signal generating means that can be generated, a memory for storing reference data according to the increase and decrease of the sound fluctuation set by the user, and reference data according to the increase and decrease of the sound fluctuation set and input through the adjustment signal generating means. And a controller configured to control the voice amplifier based on the data stored in the memory, when the user requests a change in sound level.

Description

Television receiver with increase and decrease of volume level function

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to volume control in a television receiver, and more particularly, to a television receiver having a function of varying a volume level of a volume level for enabling a user to arbitrarily set and use a variation range of a volume.

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 for explaining the configuration and function of a television receiver according to the present invention, but the same parts as those of the conventional television receiver will be described with reference to FIG. 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. A receiver for receiving and mixing the radio frequency signal output from the unit 102 and the oscillation frequency signal output from the local oscillation circuit 117 to be described later, respectively, and outputting an intermediate frequency signal. 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. And a switching unit for selectively outputting audio and video signals from the external AV device 119.

Further, reference numeral 123 is not shown for the image signal output from the switching unit 120, but according to the control signal from the microprocessor 111 Color, tint, Brightness ), 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. Although reference numeral 121 is not shown for the audio signal output from the switching unit 120, the base, treble, and volume according to the control signal from the microprocessor 111. An audio processing unit that executes audio processing such as the above is shown, and 122 represents an audio amplifying unit which amplifies the audio signal processed by the audio processing unit 121 and outputs it to the speaker. 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 generates a control signal according to the volume increase or decrease for controlling the magnitude of the sound is expressed through the remote control device 108, the volume change range of the reference unit preset in the microprocessor 111 Accordingly, the amplification gain of the voice amplifier 122 is adjusted to meet the user's request. However, in the case of giving a fluctuation according to the increase or decrease of the volume by the above-mentioned operation, the fluctuation range of the preset reference unit is set to be generally fine, so that the user requests a large fluctuation in the current sound volume. Inconvenience has arisen when the remote control device 108 has been operated for a long time.

An object of the present invention is to solve the problems of the prior art as described above, to arbitrarily change and store the reference unit for the acoustic fluctuation and to adjust the level of the sound based on the changed data in the future request for the fluctuation of the sound. It is to provide a television receiver with the function of fluctuation and fluctuation of the volume level.

A feature of the present invention for achieving the above object of the present invention, in the television receiver capable of expressing the sound signal detected in the broadcast signal received through the antenna according to the control signal to the outside through a speaker Amplification gain according to the signal to amplify the input sound signal after amplifying the sound amplification unit for outputting to the speaker, and a control signal for generating a plurality of control signals for setting the increase and decrease of the sound fluctuation set by the user A memory for storing reference data according to the generating means, the increase and decrease of the sound fluctuation set by the user, and the reference data according to the increase and decrease of the sound fluctuation set and inputted through the adjustment signal generating means in the memory, and later The voice based on the data stored in the memory when the user requests a change in sound level The present invention provides a television receiver having a function of varying the amplitude of a volume level.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram for explaining the above-described configuration and function of a number of televisions having a function of varying a volume level of a volume level 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

120: switching unit 121: voice processing unit

122: audio amplifier 123: image processing unit

124 mixer 125 CRT drive unit

126: memory

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

1 is a block diagram illustrating the configuration and function of a television receiver having a function of varying the volume level of the present invention. 1 has already been referred to in the description of the prior art, so a detailed description of the configuration that performs the same function as the conventional technology described above will be omitted, and only the functions of the configuration added to the prior art will be described. A memory denoted by reference numeral 126 is a place for storing reference data according to the increase and decrease of the acoustic fluctuation set by the user through the remote control apparatus 108. The microprocessor 111, which has been given the same reference numeral, is used in addition to the conventional functions. Based on the data stored in the memory 126 when the user requests a change in the sound level is stored in the memory 126, the reference data according to the increase and decrease of the sound fluctuation set through the remote control device 108 is input. It has a function to control the voice amplifier 122. The other structure is the same as the conventional structure.

Looking at a preferred operation example of a television receiver having a function of varying the volume level of the volume level according to the present invention having the above-described configuration, the microprocessor 111 uses the receiver 109 to determine the level at which the sound level is increased or decreased. Determine if you want to reset the fluctuation range. If it is determined that there is no user's request in the above-described process, the previous operation is performed. However, when the user's request is input, the user inputs after removing reference data according to the sound fluctuation range stored in the memory 126. Determine the magnitude of the fluctuation. Thereafter, the microprocessor 111 stores the magnitude of the variation width determined in the above-described process in the memory 126.

Subsequently, when the user requests a change in sound level, the microprocessor 111 accesses data stored in the memory 126 and controls the amplification gain in the voice amplifier 122 based on this.

When providing a television receiver having a function of increasing or decreasing the volume level according to the present invention operating as described above, when a change caused by the increase or decrease of the volume, a problem that occurs in the prior art, that is, the preset reference unit Since the fluctuation range is set to be generally fine, the inconvenience of having to operate the remote control device for a long time when the user requests a large fluctuation in the loudness of the current sound can be eliminated.

Claims (1)

In the television receiver capable of expressing the sound signal detected from the broadcast signal received through the antenna to the outside through the speaker by adjusting the level according to the control signal, A voice amplifier 122 for amplifying the input sound signal by varying amplification gain according to a control signal and outputting the amplified sound signal to the speaker; Adjustment signal generating means capable of generating a plurality of control signals for setting the increase and decrease of the acoustic fluctuation set by the user; A memory 126 for storing reference data according to the increase and decrease of the acoustic fluctuation set by the user; Based on the data stored in the memory 126 when the user requests a change in the sound level is stored in the memory 126, the reference data according to the increase and decrease of the acoustic fluctuation set and input through the adjustment signal generating means And a control unit (111) for controlling the voice amplification unit (122).