MXPA97010021A - Apparatus and method for controlling sound for audio / vi device - Google Patents

Abstract

The present invention relates to an apparatus and method for controlling sound for an audio / video apparatus is presented. The apparatus includes a sound control section for controlling and emitting volume and tone of a sound signal, a sound emission section for emitting the sound signal from the sound control section to a speaker, and an input section with keys for adjusting the volume and tone of the sound signal, the apparatus comprises a controller, connected to the sound control section and the input section with keys, to display symbols representative of the volume and tone level according to the entry of the input section with keys, a memory to store initial values of tone level corresponding to different levels of the volume, respectively, a processor for on-screen display (OSD) to process an OSD signal corresponding to the data to be discarded as the symbols introduced from the controller, an image emission section to emit the OSD signal from the OSD processor suppressed on a signal of imag in and a display the OSD signal superimposed on the image of

Description

APPARATUS AND METHOD FOR CONTROLLING SOUND FOR AUDIO / VIDEO APPARATUS BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for sound control for an audio / video apparatus that can prevent distortion of sound. High and low frequency sound components caused by excessive tone adjustment. 2. Description of the Related Art The Figure is a block diagram of a conventional sound control apparatus for a video apparatus such as a television monitor or receiver.

With reference to Figure 1, the conventional sound control apparatus includes the keys Kl, K2, K3 to adjust the volume, treble and bass of the sound, respectively, a sound control section 1 to control the volume, treble and bass of the sound signal according to the key signals introduced through the keys Kl, K2, K3 and a sound output section 2 to emit the sound signal from the sound control section 1 to a speaker 3.

According to the sound control apparatus as constructed above, the sound control section 1 controls the volume, treble and bass of the sound input signal according to a currently determined level to emit the controlled sound to the broadcast section of the sound. sound 2. At that time, if a user operates the volume adjustment key Kl, the sound control section 1 controls the volume of the sound to be at the level set by manipulating the Kl key, and then outputs the volume of sound adjusted. According to the above, the sound signal is emitted with the volume set by the user to the horn 3 via the sound emission section 2.

Thereafter, if the user operates the treble adjustment key K2, the sound control section 1 controls the treble of the sound to be at the value set by the K2 key, and then emits the adjusted treble sound. According to the above, the sound signal is emitted with the high value set by the user to the horn 3 via the sound emission section 2.

Bass control is carried out in a manner similar to treble control as described above, and thus the description thereof will be omitted.

With the above description, the conventional sound control apparatus can vary the treble or bass level from a minimum value to a maximum value, regardless of the current volume level, by means of one of the adjustment keys K2 and K3.

According to the conventional sound control apparatus, however, if the user adjusts the treble or bass to the maximum or minimum level, when the volume level present is at the maximum value, the high frequency component or the low frequency component of the The sound to be emitted will be distorted, thereby deteriorating the sound quality.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problem, and to provide an apparatus and method of sound control for an audio / video apparatus that can prevent the high or low frequency component of the sound from being distorted due to an excessive adjustment of the tone when presetting the default initial values of the treble and bass levels, according to the volume levels, respectively, and control the values of the treble and bass within the initial value corresponding to the current volume level during a Sound adjustment.

To achieve the above objective, according to one aspect of the present invention, there is provided an apparatus for controlling sound for an audio / video apparatus having a sound control section for controlling and emitting volume and tone of a sound signal, a sound emission section for emitting the sound signal of the sound control section to a speaker, and a key input section for adjusting the volume and tone of the sound signal, the apparatus comprises a controller, connected to the sound control section and the key input section, to display symbols representative of the volume and tone level according to the introduction of the key input section, a memory to store the initial values of the tone level corresponding to different volume levels, respectively, an on-screen display processor (OSD) to process an OSD signal corresponding to the data to be displayed as the symbols input from the controller, an image emission section to output the signal OSD from the OSD processor that is superimposed on an image signal, and a display to display the OSD signal superimposed on the image signal.

According to another aspect of the present invention, there is provided a method for controlling sound comprising the steps of storing a plurality of predetermined initial values of tone in accordance with the volume levels in a memory, receiving a desired level of volume by the user, read from the memory the initial tone value corresponding to the desired volume level and display the initial value read.

The method further comprises the steps of receiving from the user a desired level of the tone below the initial displayed tone value, controlling a video control section in accordance with the desired volume level and displaying the desired volume and tone levels from the sound control section.

The step of entering the pitch includes a step of entering a level of treble and bass.

According to another aspect of the present invention, there is provided an apparatus for controlling sound that includes a sound control section for emitting volume and tone of a sound signal and a sound emission section for emitting the sound signal from the section of sound control through a speaker, the apparatus comprises an input section for adjusting volume and tone levels by a user, a memory for storing initial values of tone levels, each initial value represents the maximum tone level recommended for a given volume level, a controller connected to the sound control section, the input section, the memory, the operable controller to read the volume level entered by the user through the input section, read the memory to recover the initial value according to the volume level entered by the user, and to emit a signal corresponding to the initial value recovered, and a section of display connected to the controller and operable to display a symbol indicative of the maximum recommended tone level corresponding to the volume level read according to the signal issued by the controller.

BRIEF DESCRIPTION OF THE DRAWINGS The above objective, other aspects and advantages of the invention will be apparent by describing the preferred copy thereof with reference to the attached drawings, in which: Figure 1 is a block diagram illustrating an apparatus of conventional sound control for an audio / video device.

Figure 2 is a block diagram illustrating a sound control apparatus in accordance with the present invention.

Figure 3 is a flow chart incorporating a method for controlling sound according to the present invention.

DETAILED DESCRIPTION OF THE PREDILLE EXAMPLE Referring now to Figure 2, a sound control apparatus according to the present invention is illustrated diagrammatically comprising a sound control section 10 for controlling the volume, treble and bass of a sound signal. introduced sound, a sound emission section 11 for emitting the sound signal of the sound control section 10 to a horn 12 and an input section with keys 13, for example, which includes a number of keys, to adjust from respective way the volume, the treble and the bass of the sound.

A controller 14 for controlling the display of related symbols corresponding to the input of a key is connected to the sound control section 10 and the input section with keys 13.

A memory 15 for storing predetermined initial values of the treble and bass levels in accordance with the volume level, and an on-screen display processor (OSD) 16 for processing OSD data to display the symbols, inputted from the controller 14 are connected to controller 14.

Also, the sound control apparatus according to the present invention includes an image emission section 17 for emitting an image signal superimposed with an OSD signal that is output from the OSD processor 16 and a display 18 for displaying the image signal issued from the image broadcast section 17.

With the construction as described above, if the user operates a sound adjustment key between the keys provided in the input section with keys 13 to adjust the volume, treble or bass, the controller 14 identifies the input of the key. of sound adjustment and converts the present mode to a sound adjustment mode.

The controller 14 outputs the data to display the representative symbols of the volume level, the treble or the bass to the OSD processor 16 and the OSD processor OSD processes the input data to output the OSD signal corresponding to the display. 18 through the image emission section 17, so that the symbols representative of the volume or tone levels are displayed.

The displayed symbols indicate the present values of the volume, the treble and the serious that are read from memory 15. At that time, the display of symbols representative of the acute and the severe is carried out in a way that the value adjusted maximum thereof is limited so that it corresponds to the current level of volume. The start of the maximum adjusted volume of the tone is made, for example, as in next table. TABLE Volume (%) 0-58 60 64 70 76 80 86 90 92-100 Treble (%) 100 96 80 70 62 60 56 56 54 Serious (%) 100 96 78 68 64 58 56 54 54 (100%: maximum value, 50%: intermediate value) According to the table, the initial values of the treble and bass are determined to correspond to the increase in sound volume level that is emitted through the speaker. In case the volume level is in the range of 0% to 58%, treble or bass can be adjusted within the 100% range without damaging high and low frequency components. In case the volume level is 70%, if the treble level is set above 70% or if the bass levels are adjusted by Above 68%, the high and low frequency components of the sound are distorted. And, in case the volume level is in the range of 92% to 100%, even if the treble or bass are adjusted above 54%, the high and low frequency components of the emitted sound are distorted.

Therefore, because the symbols representative of the treble and bass in the display indicate the start of the maximum adjusted level corresponding to the current level of the volume stored in the memory 15 with reference to the previous table, although the user adjusts the treble or the maximum bass by using the displayed symbols the high and low frequency components of the emitted sound are not distorted.

Adjusting the treble or bass after the current volume level is set to 80% by the user will now be described with reference to Figure 2.

As described above, the initial values of the treble and bass corresponding to the volume level are stored in the memory 15 (step S22). When the device is turned on, the symbols are displayed. The user sets 80% of the volume level by operating the volume selection key, and a "+" p "-" key in the input section with keys 13 (step S23). The controller 14 determines 80% of the volume level entered as the current volume level and stores the volume level in the memory 15, and then controls the sound control section 10 so that the sound is emitted with the level of 80% volume through speaker 12 (step S27).

When the current volume level is set to 80%, the initial values of the treble and bass are changed according to the volume level of 80% (step S24). More specifically, the maximum values displayed in the treble and bass represent the initial values.

If the user changes the sound adjustment item to treble or bass by operating a specific key provided in the input section with keys 13 and then operates the "+" or "-" key to adjust the value of the Treble or bass (step S25), the controller 14 sets the treble or bass level set (step S26). According to the foregoing, the controller 14 emits the sound signal to control the value of the treble or bass to be the set value, to the sound control section 10, so that the value of the treble or bass of the Emitted sound is adjusted to the value set by the user.

In the adjustment of treble or bass, although the user has set the level of the treble or bass to the maximum value of the symbols in the display, the maximum value displayed of the treble or bass is within the range where the high and low frequency components do not deteriorate, thus producing a high fidelity sound.

While the present invention has been described and illustrated herein with reference to the preferred exemplary thereof, those skilled in the art will understand that various changes in form and detail can be made thereto without departing from the spirit and scope of the invention. .

Claims (6)

1. CLAIMS: 1. An apparatus for controlling sound for an audio / video device having a sound control section for controlling and emitting volume and tone of a sound signal, a sound emission section for emitting the sound signal from the control section of sound to a speaker and an input section with keys to adjust the volume and tone of the sound signal, the apparatus comprises: a controller connected to the sound control section and the input section of keys , to display symbols indicative of the volume and tone levels according to the entries in the input section with keys; a memory for storing initial values of the tone level corresponding to different volume levels, respectively; an on-screen display processor (OSD) for processing an OSD signal corresponding to the data to be displayed as the symbols entered from the controller; an image emission section for emitting the OSD signal from the OSD processor being superimposed on an image signal; and a display to display the OSD signal superimposed on the image signal.
2. 2. The apparatus as claimed in Claim 1, wherein the tone includes treble and bass.
3. 3. In an audio / video apparatus, a method for controlling sound comprising the steps of: storing a plurality of predetermined initial values of tone in accordance with volume levels in a memory; receive a desired level of volume by the user; read from the memory the initial tone value corresponding to the desired volume level; and display the initial value read.
4. 4. The method according to claim 3, further comprising the steps of: receiving from the user a desired level of tone below the initial displayed value of the tone; control a sound control section in accordance with the desired tone level; and producing the desired volume and tone levels from the sound control section.
5. 5. The method according to Claim 4, wherein the step of entering the pitch includes a step of entering a treble or bass level.
6. 6. An apparatus for controlling sound that includes a sound control section for emitting volume and tone of a sound signal, and a sound emission section for emitting the sound signal from the sound control section through a speaker, the apparatus comprises: an input section for adjusting volume and tone levels by a user; a memory for storing initial values of tone levels, each initial value represents the maximum recommended tone level for a given volume level; a controller connected to the sound control section, the input section and the memory, the operable controller to read the volume level entered by the user through the input section, read the memory to recover the initial value according to the volume level entered by the user, and emit a signal corresponding to the initial value recovered; and a display section connected to the controller and operable to display a symbol indicative of the maximum recommended tone level corresponding to the volume level read according to the signal issued by the controller. EXTRACT OF THE INVENTION An apparatus and method for controlling sound for an audio / video apparatus is presented. The apparatus includes a sound control section for controlling and emitting volume and tone of a sound signal, a sound emission section for emitting the sound signal from the sound control section to a speaker, and an input section with keys for adjusting the volume and tone of the sound signal, the apparatus comprises a controller, connected to the sound control section and the input section with keys, to display symbols representative of the volume and tone level according to the entry of the input section with keys, a memory for storing initial tone-level values corresponding to different levels of the volume, respectively, a processor for on-screen display (OSD) to process an OSD signal corresponding to the data to be displayed as the symbols input from the controller, a an image broadcast section for emitting the OSD signal from the OSD processor superimposed on an image signal, and a display for displaying the OSD signal superimposed on the signal image.