KR20090016289A - A apparatus and a method of notebook computer speaker controlling - Google Patents

A apparatus and a method of notebook computer speaker controlling Download PDF

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Publication number
KR20090016289A
KR20090016289A KR1020070080817A KR20070080817A KR20090016289A KR 20090016289 A KR20090016289 A KR 20090016289A KR 1020070080817 A KR1020070080817 A KR 1020070080817A KR 20070080817 A KR20070080817 A KR 20070080817A KR 20090016289 A KR20090016289 A KR 20090016289A
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KR
South Korea
Prior art keywords
speaker
notebook computer
user
position data
image
Prior art date
Application number
KR1020070080817A
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Korean (ko)
Inventor
정의택
Original Assignee
엘지전자 주식회사
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Publication date
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Priority to KR1020070080817A priority Critical patent/KR20090016289A/en
Publication of KR20090016289A publication Critical patent/KR20090016289A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G06F3/165—Management of the audio stream, e.g. setting of volume, audio stream path
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G06F3/167—Audio in a user interface, e.g. using voice commands for navigating, audio feedback

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

An apparatus for controlling speaker of notebook computer and a method thereof are provided to automatically control direction of a speaker according to a position of a user face. An image sensor camera(110) takes a picture of a front image of a notebook computer(100). An image capture analysis part(120) captures took image information, and analyzes present image information of a user based on a captured image. The position information is position data of a user face or ear. If the present position information is detected, the image capture analysis part compares former position information stored in a buffer with the present position information. If the present position information and the former position information are different, the image capture analysis part delivers the present position information to a control part(130). If the present position information is delivered from the image capture analysis part, the control part controls a motor part(140) for controlling an output direction of an audio signal of a speaker(150) according to the present position information.

Description

A APPARATUS AND A METHOD OF NOTEBOOK COMPUTER SPEAKER CONTROLLING}

1 is a block diagram of a speaker control apparatus of a notebook computer according to an embodiment of the present invention.

2 is a flowchart illustrating a speaker control method of a notebook computer according to an exemplary embodiment of the present invention.

3A is an exemplary diagram of capturing an image located in front of a notebook computer by an image sensor camera.

Figure 3b is an exemplary view in which the speaker is adjusted according to the user's face location information.

4 is a table showing the output level of the speaker according to the distance from the notebook computer to the user face according to another embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: notebook computer 110: image sensor camera

120: image capture analysis unit 122: capture & analysis program

130: control unit 140: motor unit

150 speaker 152 switching means

160: distance measuring unit 170: output level control unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to notebook systems, and more particularly, to a speaker control apparatus and method for a notebook computer for controlling speaker directions such that audio sound is heard only by the user when using the notebook computer.

In general, portable devices such as notebook computers are equipped with omnidirectional speakers.

When using the mounted omnidirectional speaker, the audible range of the audio signal output from the omnidirectional speaker is provided not only to the user but also to others.

Therefore, there is a problem in that the omnidirectional speaker mounted in the notebook computer is not used when the earphone (or the headphone) is not used because it interferes with others in public places.

Accordingly, an object of the present invention is to provide an apparatus and method for controlling a speaker of a notebook computer such that an audio signal is provided only to a user when using the notebook computer.

Speaker control apparatus of a notebook computer according to an aspect of the present invention for achieving the above object, at least one speaker, an image sensor camera for taking an image of the front of the notebook computer, a predetermined time interval with respect to the captured image information An image capture analyzer configured to perform an image capture, analyze the face position data of the user through the captured image, and control the controller to adjust the direction of the speaker in response to the analyzed face position data. do.

It further comprises a motor unit so that the direction of the speaker can be adjusted.

The motor unit is configured to limit the control angle to a total of 30 degrees each up, down, left and right under the control of the control unit, and is configured to be adjusted by 3 ° per step in 10 steps each up, down, left and right.

The speaker is a directional speaker using an ultrasonic wave to output an audio signal of 1 ~ 2W at an audible distance of less than 100cm and an audible width of 40cm * 40cm.

The image capture analyzer compares the analyzed previous face position data of the user with the current face position data, and if different from the comparison result, transmits the current face position data to the controller so that the direction of the speaker is adjusted to an optimal position.

The controller controls the audio signal output from the speaker to be muted when the face position data of the user is not detected as a result of the analysis of the image capture analyzer.

The controller maintains the current adjusted direction of the speaker when the previous face position data of the user and the current face position data are compared by the image capture analyzer.

The predetermined time interval is 0.2 ~ 0.25 seconds.

And a distance measuring unit for measuring the distance from the notebook computer to the face of the user, and an output level adjusting unit for adjusting the audio signal level output from the speaker based on the measured distance.

In addition, the speaker control method of a notebook computer according to an aspect of the present invention for achieving the above object, the step of taking an image of the front of the notebook computer, the step of capturing the image taken at a predetermined time interval, Analyzing the face position data of the user through the captured image, and adjusting the speaker direction in response to the analyzed face position data of the user.

In the image capturing step, images are continuously captured at intervals of 0.2 to 0.25 seconds.

In the analyzing step, the movement of the face position data is analyzed by comparing the current face position data with previous face position data.

If the comparison result is different, the direction of the speaker is adjusted according to the current face position data of the user.

If the comparison result is the same, the direction of the current speaker is maintained.

In the analyzing step, if the current face position data of the user is not detected, the audio signal output from the speaker is blocked.

In the adjusting step, the speaker limits the control angle to a total of 30 degrees each up, down, left and right by driving the motor, it is adjusted by 3 ° per step in 10 steps each up, down, left and right.

The speaker is a directional ultrasonic speaker, and outputs an audio signal of 1 to 2 W with an audible distance of less than 100 cm and an audible width of 40 cm * 40 cm.

Measuring a distance from the notebook computer to a user's face according to the analysis result, and adjusting an audio signal level output from a speaker based on the measured distance.

According to the present invention having the above configuration, the audio signal can be provided only to the user when using the notebook computer. In addition, when using the notebook computer, the user can listen to the provided audio signal at the optimum output level.

Hereinafter, a speaker control apparatus of a notebook computer according to the present invention will be described in detail with reference to a preferred embodiment shown in the accompanying drawings.

Referring to FIG. 1, when using the notebook computer 100, an image sensor camera 110 for capturing an image of the front surface of the notebook computer 100 is provided. Preferably, the photographed area is a front portion of a screen on which information is displayed when the notebook computer 100 is used (see FIG. 3A).

An image capture analyzer 120 is provided to capture an image of the captured image information at predetermined time intervals and analyze the current location information of the user in the captured image. At this time, the predetermined time interval is 0.2 ~ 0.25 seconds, the location information refers to the contour position data of the user's face (or ears).

In addition, when the current position information is detected, the image capture analyzer 120 compares the previous position information stored in a buffer (not shown in the figure). In addition, if the current location information and the previous location information are different from each other as a result of the comparison, the image capture analyzer 120 captures that the user's face has moved and transmits the current location information to the controller 130. Unlike this, if the current location information is not detected as a result of the analysis, the image capture analyzer 120 transmits a mute signal to the controller 130 to be described later.

The image capture analyzer 120 may be provided with a Capture & Analyzer Program 122.

In addition, when the current location information is transmitted from the image capture analyzer 120, the controller 130 may adjust the motor signal output direction of the audio signal of the speaker 150 in response to the transmitted current location information. ). That is, the control unit 130 controls the motor unit 140 to an optimal position within a range consisting of 10 steps of 3 ° per one step up and down, left and right, respectively, corresponding to the transmitted position information. Here, the motor unit 140 is composed of a motor for performing a vertical movement and a motor for performing a horizontal movement.

In addition, when the mute signal is transmitted from the image capture analyzer 120, the controller 130 blocks the output of the audio signal of the speaker 150 to be described later.

The speaker 150 is an internal speaker embedded in the notebook computer 100. The speaker 150 converts a voice signal transmitted through an audio amplifier (not shown) into an ultrasonic signal and converts the voice signal into an ultrasonic signal. It is a directional ultrasonic speaker that can be output. Here, the speaker 150 has a voice output of about 1 ~ 2W, the audible distance is preferably 100cm from the speaker 150, the audible width is 40cm * 40cm.

When the mute signal is transmitted from the controller 130, a switching means 152 is provided to switch the audio signal output from the speaker 150 to be muted. As described above, the blocking of the audio signal may interrupt an audio signal output line transmitted to the speaker 150, or may interrupt an audio signal line output by the speaker 150 itself according to the mute signal, or the user may This means that the output level of the audio signal is controlled to the minimum so that the audio signal cannot be heard.

On the other hand, the notebook computer 100 to the user's face (or ear) under the control of the controller 130 only when the current location information is detected by the image capture analysis unit 120 as a result of the captured image analysis. The distance measuring unit 160 for measuring the distance is provided.

In addition, an output level adjusting unit 170 is provided to adjust an audio signal level output from the speaker 150 based on the measured distance value.

Hereinafter, a speaker control method of a notebook computer according to an exemplary embodiment of the present invention having the above configuration will be described in detail with reference to FIGS. 2 to 4.

First, referring to FIG. 2, when the notebook computer 100 starts to be driven, the image sensor camera 110 captures an image of the front surface of the notebook computer 100 (S10). For example, FIG. 3A is an exemplary diagram in which an image of the front surface of the notebook computer 100 is photographed by the image sensor camera 110. Referring to FIG. 3A, the image sensor camera 110 mounted on the notebook computer 100 continuously photographs the image A of the front surface of the notebook computer 100 including the user's face.

In addition, the image sensor camera 110 transmits the captured image information to the image capture analyzer 120.

Then, the image capture analyzer 120 captures the image information continuously transmitted at predetermined time intervals (S20). At this time, the predetermined time interval is 0.2 ~ 0.25 seconds, the image capture analysis unit 120 is preferably provided with an image & analysis program.

In addition, the image capture analyzer 120 analyzes the captured image, and temporarily stores the current location information in a buffer (not shown) when the current location information of the user is detected for the first time as a result of the analysis.

At the same time, the image capture analyzer 120 transmits the current location information to the controller 130.

Then, the controller 130 adjusts the direction of the speaker 150 by controlling the motor unit 140 according to the transmitted current position information. In this case, the control unit 130 adjusts the motor unit 140 to an optimum position within a range consisting of 10 steps of 3 ° per one step up and down, left and right, respectively, in response to the transmitted current position information. .

Subsequently, the image capture analyzer 120 performs image capture every predetermined time (that is, 0.2 to 0.25 seconds).

In addition, the image capture analysis unit 120 analyzes the captured image, and when the current location information of the user is detected as a result of the analysis, the current location information and previous location information temporarily stored in a buffer (not shown). Are compared (S30 to S50).

In this case, the position information refers to position data of the face (or ear) contour of the user.

In step 50, if the current position information and the previous position information are different from each other, the current position information is temporarily stored in the buffer and transferred to the controller 130. That is, the image capture analyzer 120 determines that the face contour position data of the user is changed (ie, motion capture) as the current position information and the previous position information are different, and the current position information of the user is determined. The buffer is temporarily stored in the buffer and transferred to the controller 130.

Based on the transmitted current position information, the controller 130 adjusts the motor unit 140 to direct the audio signal output direction of the speaker 150 toward the transmitted current position information (S60).

For example, FIG. 3B is an exemplary diagram in which an audio signal output direction of the speaker 150 is adjusted according to the changed face of the user. Referring to FIG. 3B, first, the controller 130 analyzes the previously captured image B and temporarily stores the audio signal output direction C of the speaker 150 according to the previous position information temporarily stored in the buffer. The motor unit 140 is controlled. Next, when the current location information analyzed in the captured current image (B ') is different from the previous location information, the controller 130 receives the current location information and the audio of the speaker 150 according to the current location information. The motor unit 140 is controlled to adjust the signal output direction to an optimal position C '.

On the contrary, if the current position information and the previous position information are the same as the comparison result at step 50, the controller 130 controls the motor unit 140 to maintain the audio signal output direction of the current speaker 150. Control (S52).

On the other hand, in the 40th step, if the current position information is not detected as a result of the analysis, the image capture analyzer 120 transmits a mute signal to the controller 130.

Then, the controller 130 controls the switching means 152 to block the audio signal output from the speaker 150 in accordance with the transmitted mute signal (S42).

Meanwhile, in addition to controlling the direction of the speaker 150 as described above, the output level of the speaker 150 may be adjusted according to the distance between the user and the notebook computer 100.

That is, referring back to FIG. 1, the image sensor camera 110 continuously photographs an image of the front surface of the notebook computer 100.

The image capture analyzer 120 captures an image at predetermined time intervals with respect to the captured image information.

In addition, the image capture analyzer 120 analyzes the captured image to detect current location information of the user.

When the current position of the user is detected as a result of the analysis, the distance measuring unit 160 measures the distance from the notebook computer 100 to the face (or ear) of the user.

The distance measuring unit 160 transmits the measured distance value to the control unit 130.

When the measured distance value is transmitted, the controller 130 transmits the measured distance value to the output level control unit 170.

Then, the output level adjusting unit 170 adjusts the audio signal level output from the speaker 150 to provide an optimal audio signal level to the user based on the transmitted distance value. For example, FIG. 4 shows an output level table of the speaker 150 according to the distance between the notebook computer 100 and the user. Referring to FIG. 4, when the distance measured by the distance measuring unit 160 is 60 cm, the output level adjusting unit 170 outputs an audio signal level of 45 dB based on the table. Adjust In addition, when the distance measured by the distance measuring unit 160 is 70cm or 80cm, the output level adjusting unit 170 outputs an audio signal level of 50dB or 55dB based on the table, the speaker 150 Adjust

As described above, the present invention described in the above embodiment has an advantage that the audio sound is provided only to the user without disturbing others in a public place.

The scope of the present invention is not limited to the above embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the above technical scope.

In addition, other devices, such as a system and a speaker integrated with the present invention will be able to facilitate the user's convenience.

As described above, according to the speaker control apparatus and method of the notebook computer of the present invention, the audio sound is provided only to the user without disturbing others in a public place when using the notebook computer.

In addition, the direction of the speaker is automatically adjusted to the optimal position corresponding to the position of the moving user face (or ear).

Claims (18)

At least one speaker, An image sensor camera that captures images from the front of the notebook computer, An image capture analyzer configured to perform image capture on the photographed image information at predetermined time intervals, and analyze face location data of the user through the captured image; and And a controller configured to control the direction of the speaker in response to the analyzed face position data. The method of claim 1, The speaker control device of the notebook computer, characterized in that further comprises a motor unit to adjust the direction of the speaker. The method of claim 2, The motor unit limits the control angle to a total of 30 degrees each up, down, left and right under the control of the control unit, and the speaker control device of the notebook computer, characterized in that it is adjusted by 3 ° per step in 10 steps each up, down, left and right. The method according to claim 1 or 2, The speaker is a speaker control device of a notebook computer, characterized in that the directional speaker using ultrasonic waves to output an audio signal of 1 ~ 2W at an audible distance of less than 100cm and an audible width of 40cm * 40cm. The method according to claim 1 or 2, The image capture analysis unit compares the analyzed previous face position data of the user and the current face position data, and if the comparison result is different from the current face position data to be transmitted to the controller so that the direction of the speaker is adjusted to the optimal position. A speaker control unit for a notebook computer. The method of claim 1 or 2, wherein the control unit, And an audio signal output from the speaker is muted when the face position data of the user is not detected as a result of the analysis of the image capture analyzer. The method of claim 6, And the control unit maintains the current adjusted direction of the speaker when the previous face position data of the user and the current face position data are compared by the image capture analyzer, and are the same. The method according to claim 1 or 2, The predetermined time interval is a speaker control device of a notebook computer, characterized in that 0.2 ~ 0.25 seconds. The method of claim 1, Distance measuring unit for measuring the distance from the notebook computer to the user's face, and And an output level control unit for adjusting an audio signal level output from the speaker based on the measured distance. Taking images of the front of the notebook computer, Capturing the captured image at regular time intervals; Analyzing the face location data of the user through the captured image, and And adjusting a speaker direction corresponding to the analyzed face position data of the user. The method of claim 10, wherein the image capture step, Speaker control method of a notebook computer, characterized in that the image is continuously captured at intervals of 0.2 ~ 0.25 seconds. The method of claim 10, wherein the analyzing step, And analyzing the movement of the face position data by comparing the current face position data with the previous face position data. The method of claim 10 or 12, And, if the comparison result is different, the direction of the speaker is adjusted according to the current face position data of the user. The method of claim 10 or 12, If the comparison result is the same, the speaker control method of the notebook computer, characterized in that the direction of the current speaker is maintained. The method of claim 10, wherein in the analyzing step, And the audio signal output from the speaker is cut off when the current face position data of the user is not detected as a result of the analysis. The method of claim 10, wherein in the adjusting step, The speaker is limited to the control angle of 30 ° in each of the top, bottom, left and right by driving the motor, the speaker control method of the notebook computer, characterized in that the control by 3 ° per step in 10 steps respectively. The method of claim 10 or 16, wherein in the adjusting step, The speaker is a directional ultrasonic speaker, the speaker control method of a notebook computer, characterized in that for outputting an audio signal of 1 ~ 2W at an audible distance of less than 100cm and an audible width of 40cm * 40cm. The method of claim 10, Measuring the distance from the notebook computer to the user's face according to the analysis result, and And adjusting the audio signal level output from the speaker based on the measured distance.
KR1020070080817A 2007-08-10 2007-08-10 A apparatus and a method of notebook computer speaker controlling KR20090016289A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110164106A1 (en) * 2010-01-05 2011-07-07 Kim Minhyoung Method for connecting video communication to other device, video communication apparatus and display apparatus thereof
DE102015117867A1 (en) * 2015-08-14 2017-02-16 Unity Opto Technology Co., Ltd. Automatically oriented speaker box and lamp with this speaker box
TWI817458B (en) * 2021-05-06 2023-10-01 仁寶電腦工業股份有限公司 Electronic device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110164106A1 (en) * 2010-01-05 2011-07-07 Kim Minhyoung Method for connecting video communication to other device, video communication apparatus and display apparatus thereof
US9350941B2 (en) * 2010-01-05 2016-05-24 Lg Electronics Inc. Method for connecting video communication to other device, video communication apparatus and display apparatus thereof
DE102015117867A1 (en) * 2015-08-14 2017-02-16 Unity Opto Technology Co., Ltd. Automatically oriented speaker box and lamp with this speaker box
DE102015117867B4 (en) * 2015-08-14 2021-01-28 Unity Opto Technology Co., Ltd. Automatically oriented speaker box and lamp with this speaker box
TWI817458B (en) * 2021-05-06 2023-10-01 仁寶電腦工業股份有限公司 Electronic device

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