• 专利附录
  • 专利说明
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    • 专利摘要:
    According to the present invention, a video conferencing system using a television is used to classify a voice signal from a remote place input through a modem for each speaker and to correct a volume level of each speaker's voice signal to a certain degree. The present invention relates to a volume control apparatus in a conference system, which performs playback processing for a broadcast signal of a channel tuned through a tuner (16), and receives a video / audio signal transmitted from a remote video conference system connected through a PSTN (42). Receives and reproduces the input signal through the modem 44, the processor 46, and the video / audio interface 48 and 50, and records the video signal captured by the imaging camera 60 and the audio signal received through the microphone 70. A videoconferencing system using a television adapted to be transmitted to said videoconferencing system via a processor 46 and a modem 44; A control signal input unit 10 for setting a volume correction mode; A control unit (12) for controlling the volume level correction for each speaker on the audio signal transmitted from the remote video conferencing system when the volume correction mode is set by the control signal input unit (10); When the volume correction mode is set under the control of the control unit 12, a voice signal from the voice interface unit 50 is input and separated by a speaker, and then the volume level of the voice signal for each speaker is compensated and output as a reference level. The speaker-specific volume level compensation unit 80 is further provided.
    公开号:KR19990040052A
    申请号:KR1019970060345
    申请日:1997-11-17
    公开日:1999-06-05
    发明作者:송복천
    申请人:전주범；대우전자 주식회사；
    IPC主号:
    专利说明:

    Volume Control Device in Video Conference System Using Television
    BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a volume control apparatus in a videoconferencing system using a television. More particularly, in a videoconferencing system using a television, a voice signal from a remote place inputted through a modem is classified for each speaker. The present invention relates to a volume control apparatus in a videoconferencing system using a television, which is capable of correcting a volume level of an audio signal to a certain degree.
    With the development of communication technology, 'video conferencing system' has been proposed. According to the video conferencing system, A and B located at a long distance are connected through a communication line, and a predetermined video signal and an audio signal are exchanged through the communication line. By watching the video and audio signals of B at A and listening to the video and audio signals of A at B, they face each other through the video and audio transmitted from the other party even though A and B are located at a distance. It has the effect of talking.
    In particular, the video conferencing system includes an image pickup camera for capturing a video signal of an information source as described above, reproduces the video signal picked up from the image pickup camera, and transmits the video signal to the counterpart video conferencing system via a modem. It is equipped with a microphone for receiving an external audio signal, and configured to reproduce the external audio signal inputted from the microphone and transmit the external audio signal to the other party's video conference system through a modem. A means for reproducing a sound signal and outputting a predetermined image and sound through a monitor or a speaker is provided.
    Therefore, according to this video conferencing system, the video signal and the external audio signal photographed from the video conferencing system of A are reproduced and output as a predetermined image and sound through the monitor and the speaker of the video conferencing system of B, The video signal and the external audio signal are reproduced and output as a predetermined picture and sound through the monitor and the speaker of the video conference system of A. FIG.
    Also, the image pickup means for the video signal and the audio input means for the external audio signal, the modem for the signal connection with the video conferencing system located at a remote location, and the video / audio signal from the remote video conferencing system transmitted through the modem. A television equipped with means for reproducing is employed in a videoconferencing system.
    On the other hand, in the video conferencing system using the above-mentioned television, when the audio signal input from the remote video conferencing system is generated from a plurality of speakers, the recording position of each speaker or the original volume level of the speaker (that is, the voice in particular) If you are a large person, the original volume level is high, and if you are a small person, the original volume level is different. In contrast, since the speaker's voice is output higher than the reference volume, the speaker's voice is not output through the speaker.
    Therefore, when audio signals from a plurality of speakers are reproduced and output through the speakers of the television, the output audio signals do not have a constant volume level, which causes a decrease in satisfaction with the audio signals reproduced and output from the television. Becomes
    Accordingly, the present invention has been made in view of the above circumstances, and in a videoconferencing system using a television, a sound level of each speaker's voice signal is classified by classifying the speaker's voice signal input from a remote place by a speaker. It is an object of the present invention to provide a volume control device in a videoconferencing system using a television capable of correcting to a certain degree.
    According to an embodiment of the present invention for realizing the above object, the modem performs a playback process on a broadcast signal of a channel selected through a tuner and transmits a video / audio signal transmitted from a remote video conference system connected through a PSTN. And video conferencing, which is inputted through a processor and a video / audio interface, and reproduces and transmits a video signal captured by an imaging camera and a voice signal received through a microphone to the videoconferencing system through the processor and a modem. In the system; A control signal input unit for setting a volume correction mode; A control unit which controls to perform speaker-level volume level correction on a voice signal transmitted from the remote video conference system when the volume correction mode is set by the control signal input unit; When the volume correction mode is set under the control of the controller, a speaker level level compensator for receiving a voice signal from the voice interface unit and separating the speaker for each speaker, and then compensating and outputting the volume level of the voice signal for each speaker as a reference level. A volume control apparatus in a video conference system using a television further provided is provided.
    According to the present invention having the above-described configuration, the original volume level for the audio signal from each speaker is adjusted to the reference level, and then the volume level of the corresponding audio signal is set to the volume level set by the user. By recalibrating, the volume level of the audio signal output through the speaker of the television is not affected by the original volume level of each speaker.
    Therefore, the audio signal having a stable volume level is output through the speaker of the television, thereby improving the satisfaction with the audio signal output from the television.
    1 is a block diagram showing a main block configuration of a volume control apparatus in a videoconferencing system using a television according to an embodiment of the present invention;
    FIG. 2 is a block diagram illustrating an internal block configuration of the speaker level volume compensator 80 shown in FIG.
    3 is a flowchart for explaining the operation of the volume control apparatus in the videoconferencing system using the television according to the embodiment of the present invention.
    Explanation of symbols on the main parts of the drawings
    10: control signal input unit, 12: control unit,
    16: tuner, 18: video IF module,
    20: voice IF module, 22: mode switching unit,
    24: video signal processor, 26: video amplifier,
    28: voice signal processing unit, 30: voice amplifier,
    42: PSTN, 44: modem,
    46: processor, 48: video interface,
    50: voice interface unit, 60: imaging camera,
    62: video signal amplifier, 64: image signal processor,
    70: microphone, 72: audio signal amplifier,
    74: external voice processing unit, 80: speaker level level compensation unit,
    82: speech separation unit by speaker, 84: data storage unit,
    86: volume level compensator, 88: mixer.
    Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
    1 is a block diagram of a volume control apparatus in a videoconferencing system using a television according to an embodiment of the present invention, wherein reference numeral 10 denotes a control panel or a television set on a main body of the television. A control signal input unit which is applied as a remote controller for remote control and inputs a control signal for the operation of the entire function. In the present invention, the control signal input unit 10 includes a video conference key 10a for setting a video conference mode. Preferably, the volume correction key 10b is configured to set the volume adjustment mode according to the speaker level adjustment.
    Reference numeral 12 denotes a control unit which controls the entire apparatus based on the control signal input from the control signal input unit 10. In the present invention, the control unit 12 is a video conference by the control signal input unit 10. When the mode is set, the relevant device is controlled to perform the video conferencing system through the corresponding television. When the volume correction mode is set, the audio signal input from the remote video conferencing system is separated for each speaker. The related device is controlled such that the original volume level for the audio signal has a reference volume.
    Further, reference numeral 16 is a tuner for tuning a specific channel among a plurality of channels received through the antenna based on the tuning voltage VT for the specific channel applied from the controller 12, and 18 is a tuner 16. An IF module which detects only a video signal after IF amplifying a TV broadcast signal of a channel tuned by the IF, and 20 is a voice that detects only an audio signal after IF amplifying a TV broadcast signal of a channel tuned by the tuner 18. IF module 20.
    Reference numeral 22 sets a processing path so that the video / audio signals from the video / audio IF modules 18 and 20 are applied to the video / audio signal processing unit 24 which will be described later. 12 is a mode switching unit for setting the processing path so that the video / audio signals from the video / audio interface units 48 and 50 to be described later are applied to the video / audio signal processing unit 24.
    Reference numeral 24 denotes an image for performing an image reproduction process such as contrast / brightness / color / tint on the image signal switched by the mode switching unit 22 and outputting the RGB signal accordingly. 24 is an image amplifying unit for amplifying the video signal outputted from the image signal processing unit 24 so that it can be reproduced and output through the CRT.
    In addition, reference numeral 28 denotes a voice signal processing unit for performing reproduction processing such as volume adjustment / voice surround / voice multiplexing on the audio signal switched by the mode switching unit 22. A voice amplifier for amplifying the voice signal output from the voice signal processor 28 to be reproduced and output through the speaker.
    In the figure, reference numeral 42 denotes a PSTN as a communication network configured with a communication line for connecting the television to a videoconferencing system located at a remote location, and 44 denotes a demodulated signal transmitted from the PSTN to a processor 46 to be described later. In addition, the modem modulates a signal applied from the processor 46 and applies it to the PSTN 42, and 46 denotes a signal corresponding to a video / audio signal from a remote video conferencing system applied from the modem 44. After analyzing and separating the video / audio signal into the video interface unit 48 and the audio interface unit 50, which will be described later, respectively, the image signal unit 64 and the external audio processor 74 are applied. After the video / audio signal is compressed, the modem 44 processes the signal so that it can be processed by the modem.
    Reference numeral 48 denotes an image interface unit for interfacing the video signal applied from the processor 46 to be reproduced on the television, and 50 denotes a reproduction process for the audio signal applied from the processor 46 on the television. It is a voice interface unit which interfaces with each other so as to apply the voice signal to the mode switching unit 50 or to the speaker level level compensator 80 to be described later.
    In addition, in the drawing, reference numeral 60 denotes an imaging camera which is provided at an external predetermined portion of the television and captures a predetermined image to be transmitted to a remote videoconferencing system, and 62 denotes an amplification of a video signal captured by the imaging camera 60. 64 is an image pickup signal processor that processes the video signal output from the video signal amplifier 62 so that the processor 46 can recognize it.
    Further, reference numeral 70 denotes a microphone for receiving a predetermined voice to be transmitted to a remote videoconferencing system installed at an external predetermined portion of the television, and 72 denotes a voice signal amplifier for amplifying the voice signal received through the microphone 70. 74 denotes an external voice processor which processes the voice signal applied from the voice signal amplifier 72 so that the processor 46 can recognize the voice signal.
    Also, reference numeral 80 separates the voice signal from the remote video conferencing system applied from the voice interface unit 50 under the control of the controller 12 for each speaker, and compensates the volume of the voice signal for each speaker to the reference volume level. As the speaker-level volume level compensator, the speaker-level volume compensator 80 is configured as shown in FIG.
    That is, the speaker level level compensator 80 classifies the voice signal applied from the voice interface unit 50 under the control of the controller 12 to each speaker and applies it to the data storage unit 84 connected to the rear end. And a data storage unit 84 comprising a speaker-specific speech separation unit 84 and a plurality of memories to independently store a voice signal applied from the speaker-specific speech separation unit 84, and corresponding to the plurality of memories. A volume level compensator 84 for determining a volume level of a voice signal applied from the data storage unit 84 under the control of the controller 12 and processing the volume level so that the volume level matches the reference volume. And a voice signal output from the volume level compensator 86 and applied to the voice signal processor 28.
    In the television having the above-described configuration, when a specific channel is selected while the TV mode is set by the control signal input unit 10, the control unit 12 sends the channel data for the channel to the channel data storage unit (not shown). Read out from and apply a tuning voltage (VT) corresponding to the channel data to the tuner 16, the tuner 16 for a particular channel of the channel received through the antenna based on the tuning voltage (VT) The tune operation is performed to apply the TV broadcast signal to the video IF module 18 and the audio IF module 22.
    On the other hand, the video / audio IF module (18, 20) IF amplifies the TV broadcast signal, and then detects the video / audio signal, respectively, and applies the detected video / audio signal to the mode switching unit 22 The mode switching unit 22 connects the video / audio signal applied from the video / audio IF module 18 to the rear of the video / audio signal based on the switching signal SW applied from the controller 12. To the processing units 24 and 28. Accordingly, the image signal processing unit 24 performs reproduction processing on the corresponding video signal, and then applies the RGB signal to the image amplifying unit 26 to output a predetermined image through the CRT of the corresponding television. At the same time, the voice signal processing unit 28 performs a reproduction process for the corresponding voice signal and then applies the voice signal to the voice amplifier 30 so that a predetermined sound is output through the speaker of the television.
    Next, a case where the television having the above-described configuration is used as the video conference system will be described in detail.
    First, when the video conference mode is set through the control signal input unit 10, the controller 12 activates an associated device and at the same time applies a predetermined switching signal SW to the mode switching unit 22 to perform video / audio. Video / audio signals applied from the interface units 48 and 50 are applied to the video / audio signal processing units 24 and 28.
    In addition, when a video / audio signal from a remote video conferencing system transmitted through the PSTN 42 is applied to the processor 46 through a modem 44, the processor 46 analyzes the video / audio signal. The video signal is applied to the video interface unit 48 and the audio signal is applied to the audio interface unit 50. Accordingly, the video interface unit 48 and the audio interface unit 50 interface the video / audio signal to be reproduced and processed on the television, and apply it to the mode switching unit 22. The mode switching unit 22 ) Transmits the video / audio signals from the video / audio interface units 48 and 50 to the video / audio signal processing units 24 and 28 so that they are transmitted from the remote video conferencing system through the CRT and speakers of the television. The image according to the video signal and the sound according to the audio signal transmitted from the remote video conference system are reproduced and output.
    At the same time, after the image signal captured from the image pickup camera 60 is applied to the image signal amplifier 62 and amplified, and then is applied to the image signal signal processor 64 to be processed by the processor 46 for processing. The voice signal applied to the processor 46 and received through the microphone 70 is applied to the voice signal amplifier 72, amplified, and then applied to an external voice processor 74 to be processed by the processor 46. The signal is processed and possibly applied to the processor 46.
    Accordingly, the processor 46 applies the video signal applied from the image pickup signal processor 64 and the audio signal applied from the external voice processor 74 to the modem 44 under the control of the controller 12. The video / audio signal is transmitted to the remote videoconferencing system via the PSTN 42.
    Hereinafter, with reference to the accompanying Figure 3 will be described in detail the operation of the volume control device in a videoconferencing system using a television according to an embodiment of the present invention.
    First, the control unit 12 determines whether the video conference mode is set (step 100), and if the video conference mode is set by the control signal input unit 10 (YES in step 100), is the volume correction mode set (Step 102).
    As a result of the determination, if the volume correction mode is not set in the state where the video conference mode is set (NO in step 102), the controller 12 proceeds to step 112, which will be described later, and the voice signal transmitted through the PSTN 42. Playback processing is performed as a normal videoconferencing system for reproducing and outputting through a CRT and a speaker of the television.
    However, in contrast to the above case, if the volume correction mode is set while the video conference mode is set (YES in step 102), the control unit 12 applies a predetermined control signal to the mode switching unit 22 to perform the The voice signal applied from the voice interface unit 50 is blocked from being applied to the voice signal processing unit 28, and then a predetermined control signal is applied to the speaker level level compensator 80 to divide the input voice signal by speaker. Disconnect (step 104).
    As a result, the speaker-specific voice separation unit 82 of the speaker-level volume level compensator 80 separates the signal applied from the voice interface unit 50 based on the control signal from the controller 12 for each speaker. If each speaker is stored in the memory of the data storage unit 84 connected to the rear end, each memory of the data storage unit 84 stores the audio signal for each speaker, and is stored at the rear end under the control of the controller 12. It is applied to the connected volume level compensator 86.
    Accordingly, the volume level compensator 86 detects the volume level of each voice signal, increases or decreases the volume level so as to match the preset reference level, and then adjusts the voice level with the volume level adjusted to the reference level. The signal is applied to the mixer 88 (step 106), and the mixer 88 mixes the voice signal and applies it to the voice signal processor 28.
    Accordingly, the voice signal applied to the voice signal processor 28 is in a state in which the original volume level for the speaker is adjusted to the reference level, so that the voice signal processor 28 controls the voice under the control of the controller 12. The volume of the signal is readjusted and reproduced at a desired volume of the user (step 108).
    Subsequently, the controller 12 determines whether the volume correction mode set in the step 102 is terminated (step 110), and when the volume correction mode is terminated by the control signal input unit 10 (YES in step 110). The control unit 12 deactivates the speaker level level compensator 80 so that a voice signal applied from the voice interface unit 50 is applied to the voice signal processing unit 28 through the mode switching unit 22. Be sure to
    Therefore, if the user sets the volume correction mode while the video conference mode is set, the voice signal transmitted through the PSTN 42 is classified by the speaker so that the original volume level of the voice signal of each speaker is adjusted to the reference volume level. Since the volume control for the voice signal of each speaker is re-executed, the voice signal output through the speaker of the corresponding television always has a constant volume level regardless of the speaker's original volume level.
    As described above, according to the volume control apparatus of a videoconferencing system using a television according to an embodiment of the present invention, the audio signal output through the speaker of the television always has a constant volume level regardless of the speaker's original volume level. By having it, it is possible to improve the satisfaction with the voice playback state of the television.
    权利要求:
    Claims (4)
    [1" claim-type="Currently amended] In addition to performing playback processing for the broadcast signal of the channel selected through the tuner 16, the modem 44, the processor 46, and the video signal are transmitted from the remote video conferencing system connected through the PSTN 42. / The audio signal received through the audio interface (48, 50) and the image signal captured by the camera 60 and the microphone 70 received through the processor 46 and the modem 44 A video conference system using a television adapted to be transmitted to the video conference system;
    A control signal input unit 10 for setting a volume correction mode;
    A control unit (12) for controlling the volume level correction for each speaker on the audio signal transmitted from the remote video conferencing system when the volume correction mode is set by the control signal input unit (10);
    When the volume correction mode is set under the control of the control unit 12, a voice signal from the voice interface unit 50 is input and separated by a speaker, and then the volume level of the voice signal for each speaker is compensated and output as a reference level. Volume control device for a video conference system using a television, characterized in that the speaker further comprises a volume level compensation unit (80).
    [2" claim-type="Currently amended] The television set of claim 1, wherein the control unit (12) controls the processing path so that the audio signal output from the speaker level control unit (80) is reproduced when the volume correction mode is set. Volume control device in video conference system.
    [3" claim-type="Currently amended] The data storage unit 84 of claim 1, wherein the speaker level level compensator 80 separates a voice signal applied from the voice interface unit 50 under the control of the controller 12 and is described later. And a data storage unit 84 for outputting a voice signal stored for each speaker by the speaker-specific voice separation unit 82 under the control of the controller 12, and storing the speaker-specific voice separation unit 82 for storing the speaker for each speaker. Volume level compensator 86 for detecting the volume level of the audio signal output from the data storage unit 84 and compensating the volume level to match the reference level, and the audio signal output from the volume level compensator 86 Volume control apparatus in a video conferencing system using a television, characterized in that it comprises a mixer (88) for mixing and outputting.
    [4" claim-type="Currently amended] 4. The volume control system of claim 3, wherein the volume level compensator 86 is provided with a plurality of volume level compensators corresponding to a memory configured in the data storage unit 84. Device.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1997-11-17|Application filed by 전주범, 대우전자 주식회사
    1997-11-17|Priority to KR1019970060345A
    1999-06-05|Publication of KR19990040052A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019970060345A|KR19990040052A|1997-11-17|1997-11-17|Volume Control Device in Video Conference System Using Television|
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