KR20000038848A - Ring display method using lcd in bell-off mode of picture phone - Google Patents

Ring display method using lcd in bell-off mode of picture phone Download PDF

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Publication number
KR20000038848A
KR20000038848A KR1019980053977A KR19980053977A KR20000038848A KR 20000038848 A KR20000038848 A KR 20000038848A KR 1019980053977 A KR1019980053977 A KR 1019980053977A KR 19980053977 A KR19980053977 A KR 19980053977A KR 20000038848 A KR20000038848 A KR 20000038848A
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South Korea
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lcd
signal
unit
image
mode
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KR1019980053977A
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Korean (ko)
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오형훈
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구자홍
엘지전자 주식회사
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Priority to KR1019980053977A priority Critical patent/KR20000038848A/en
Publication of KR20000038848A publication Critical patent/KR20000038848A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M19/00Current supply arrangements for telephone systems
    • H04M19/02Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • H04M19/048Arrangements providing optical indication of the incoming call, e.g. flasher circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2201/00Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/50Telephonic communication in combination with video communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2215/00Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/81Notifying aspects, e.g. notifications or displays to the user
    • H04M2215/8129Type of notification
    • H04M2215/8141Optical, e.g. flashing indication of a lamp, icon, soft-key or symbol

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

PURPOSE: A ring display method using an LCD in a bell-off mode of a picture phone is provided to display that there is a phone call for a user by flashing an LCD in a state that a picture phone is set in a bell-off mode. CONSTITUTION: A charge coupled device(CCD)(1) converts an image of an object inputted through a lens into an electric signal. A CCD driving unit and signal input unit(2) drives the CCD(1), receives the image signal of the CCD(1) and outputs it to a digital signal processing unit(3). The digital signal processing unit(3) processes the image signal inputted from the CCD driving unit and the signal input unit(2) to a digital signal. An LCD driving unit(4) drives an LCD(10) so as to the signal processed by the digital signal processing unit(3) to be displayed on the LCD screen, and performs a flashing operation of the LCD(10) under the control of a controller(7). An image compression/restoring unit(5) compresses the signal processed by the digital signal processing unit or restores the received image. A communication control and interface unit(6) performs communication controlling by transmitting the image signal compressed by the compressing/restoring unit(5) or receiving a transmitted image signal. The controller(7) controls each part of the system by processing, compressing, restoring and transmitting a digital signal. A handset(8) is connected to the communication control and interface unit(6) to perform transmitting and receiving an audio signal. A ring signal detector(9) detects a ring signal from the communication control and interface unit(6). An LCD(10) displays the signal output from the LCD drive unit(4) on a screen. An OSD IC(11) is operated under the control of the controller(7) to display an OSD character on the screen of the LCD(10).

Description

화상전화기의 벨오프 모드에서 LCD를 이용한 링표시 방법Ring display method using LCD in belloff mode of videophone

본 발명은 화상전화기에 있어서, 특히 화상전화기가 벨오프(Bell-off) 모드로 설정된 상태에서 전화가 걸려 왔을 경우 액정표시수단(LCD)을 점멸시켜 사용자에게 전화가 왔음을 표시하기 위한 화상전화기의 벨오프 모드에서 LCD를 이용한 링표시 방법에 관한 것이다.The present invention relates to a video telephone, in particular, when a video telephone is set in a bell-off mode, when the telephone is called, the liquid crystal display (LCD) flashes to display a call to the user. The present invention relates to a ring display method using an LCD in a belloff mode.

종래 기술에서는 일반 또는 화상전화기가 벨오프 모드로 설정된 상태에서 상대방으로부터 전화가 걸려오면 발광다이오드(LED;Light emitting Diode)가 점멸되면서 사용자에게 전화가 왔음을 표시하므로 기기에 발광다이오드를 별도로 설치해야 하고 또, 발광다이오드 소자가 작기 때문에 사용자는 발광다이오드의 점멸동작을 쉽게 인식할 수 없는 문제점이 있었다.In the prior art, when a call is received from the other party while a general or video telephone is set in the belloff mode, a light emitting diode (LED) flashes to indicate that the user has received a call. Therefore, a separate light emitting diode must be installed in the device. In addition, since the light emitting diode device is small, there is a problem that a user cannot easily recognize the blinking operation of the light emitting diode.

본 발명에서는 상대방으로부터 전화가 걸려 오면 즉, 통신제어 및 인터페이스부를 통해 상대방 기기로부터 링(Ring)신호에 해당하는 일정 톤펄스신호가 인가되면 화상전화기가 벨온(Bell-on)모드인지 벨오프(Bell-off)모드인지를 판별하여 벨온 모드이면 벨소리로서 전화가 왔음을 알리고, 벨오프 모드이면 LCD가 점멸되도록 함으로써, 종래와 같이 별도의 표시수단(발광다이오드) 없이도 화상전화기에 구비된 LCD를 통해서 전화가 왔음을 표시할 수 있도록 한 것이다.According to the present invention, when a call is received from a counterpart, that is, a predetermined tone pulse signal corresponding to a ring signal is applied from the counterpart device through a communication control and interface unit, the video telephone is in a bell-on mode. In the bell-on mode, the call is announced as a ring tone, and the LCD blinks in the bell-off mode, so that the call is made through the LCD provided in the video telephone without a separate display means (light emitting diode). To indicate that the

도 1은 본 발명을 설명하기 위한 화상전화기의 블럭 구성도1 is a block diagram of a video telephone for explaining the present invention.

본 발명 화상전화기의 벨오프 모드에서 LCD를 이용한 링표시 방법은 링(Ring)신호가 검출되면 화상전화기가 벨온(Bell-on) 모드인지 벨오프(Bell-off)모드인지를 판단하여 벨온 모드이면 벨소리로서 전화가 왔음을 알리고, 벨오프 모드이면 액정표시수단(LCD)을 점멸시켜 전화가 왔음을 표시하는 것을 특징으로 한다.In the ring-off mode of the video telephone according to the present invention, when the ring signal is detected, the ring display method determines whether the video telephone is in the bell-on mode or the bell-off mode. Informing that the call is a ringtone, and in the belloff mode, the liquid crystal display (LCD) blinks to indicate that the call is received.

이때, 상기 LCD화면에 OSD문자를 이용하여 전화가 왔음을 표시할 수도 있다.In this case, the LCD screen may indicate that a call is received using the OSD text.

도 1은 본 발명을 설명하기 위한 일반적인 화상전화기의 블럭 구성도를 나타낸 것으로, 렌즈(Lens)를 통해 입력된 피사체 영상을 전기적인 신호로 변환시키는 CCD(Charge Coupled Device)(1)와, 상기 CCD(1)를 구동하여 CCD(1)의 영상신호를 입력받아 디지탈신호처리부(3)로 출력하는 CCD구동부 및 신호입력부(2)와, 상기 CCD구동부 및 신호입력부(2)로부터 입력된 영상신호를 디지탈 신호 처리하는 디지탈신호처리부(3)와, 액정표시수단(LCD)(10)을 구동시켜 상기 디지탈신호처리부(3)에서 처리된 신호가 LCD화면에 디스플레이되도록 하고, 벨오프 모드에서 제어부(7)의 제어를 받아 LCD(10)의 점멸동작을 수행하는 LCD구동부(4)와, 상기 디지탈신호처리부(3)에서 처리된 신호를 압축 또는 수신되는 영상을 복원하는 영상 압축/복원부(5)와, 상기 영상 압축/복원부(5)에서 압축된 영상신호를 전송 또는 전송되어져 오는 영상신호의 수신 등 통신 제어를 수행하는 통신제어 및 인터페이스부(6)와, 영상의 디지탈신호 처리, 압축 및 복원, 전송 등 시스템 각부를 제어하는 제어부(7)와, 통신제어 및 인터페이스부(6)와 연결되어 음성신호의 송수신을 수행하는 핸드셋(Handset)(8)과, 통신제어 및 인터페이스부(6)로부터 링(Ring)신호를 검출하는 링신호검출부(9)와, LCD구동부(4)에서 출력된 신호를 화면상에 디스플레이하는 LCD(10)와, 제어부(7)의 제어를 받아 온동작하여 LCD(10) 화면상에 OSD문자를 표시하는 OSD IC(11)를 포함하여 구성된다.1 is a block diagram of a general video telephone for explaining the present invention. A CCD (Charge Coupled Device) 1 for converting a subject image input through a lens into an electrical signal, and the CCD (1) driving a CCD driver and a signal input unit (2) for receiving an image signal from the CCD (1) and outputting it to the digital signal processor (3); and a video signal input from the CCD driver and the signal input unit (2). The digital signal processing unit 3 and the liquid crystal display means (LCD) 10 are driven to process the digital signals so that the signal processed by the digital signal processing unit 3 is displayed on the LCD screen. LCD driving unit 4 performing the flashing operation of the LCD 10 under control of the control unit and an image compression / restore unit 5 for restoring the image compressed or received by the signal processed by the digital signal processing unit 3. And an image compressed by the image compression / recovery unit 5. A communication control and interface unit 6 for performing a communication control such as receiving a signal or transmitting a video signal, and a control unit 7 for controlling each part of the system such as digital signal processing, compression, restoration, and transmission of an image; A handset 8 connected to the communication control and interface unit 6 for transmitting and receiving voice signals, and a ring signal detection unit 9 for detecting a ring signal from the communication control and interface unit 6. And an LCD (10) for displaying a signal output from the LCD driver (4) on the screen, and an OSD IC (11) for displaying OSD characters on the screen of the LCD (10) by being operated on under the control of the controller (7). It is configured to include).

본 발명 화상전화기의 벨오프 모드에서 LCD를 이용한 링표시 방법의 작용을 도 1을 참조하여 설명하면 다음과 같다.The operation of the ring display method using the LCD in the belloff mode of the video telephone according to the present invention will be described with reference to FIG.

먼저, 렌즈(Lens)를 통해 입력되는 영상은 CCD(1)에서 전기적인 신호로 변환되고, CCD구동부 및 신호입력부(2)는 상기 CCD(1)를 구동하여 CCD(2)에서 변환된 신호를 입력받아 디지탈신호처리부(3)로 출력한다.First, an image input through the lens is converted into an electrical signal in the CCD 1, and the CCD driver and the signal input unit 2 drive the CCD 1 to convert the signal converted in the CCD 2. It receives an input and outputs it to the digital signal processor 3.

상기 디지탈신호처리부(3)는 제어부(7)의 제어를 받아 영상신호를 휘도신호와 색신호로 처리하여 영상 압축/복원부(5)로 출력하고, 또 LCD구동부(4)에도 출력하여 CCD(1)에서 촬영된 영상이 LCD(10)화면에 디스플레이되도록 한다.The digital signal processing section 3 processes the video signal into a luminance signal and a color signal under the control of the control section 7 and outputs the image signal to the image compression / restoration section 5, and also outputs to the LCD driving section 4 and the CCD (1). ) To display the image taken on the LCD (10) screen.

한편, 영상 압축/복원부(5)에서는 입력된 영상을 일정 압축 포맷으로 압축하여 통신제어 및 인터페이스부(6)로 출력하고, 또한 전송되어져 오는 영상을 복원하여 디지탈신호처리부(3)로 출력한다.On the other hand, the image compression / recovery unit 5 compresses the input image into a predetermined compression format and outputs it to the communication control and interface unit 6, and also restores the transmitted image and outputs it to the digital signal processing unit 3. .

통신제어 및 인터페이스부(6)에서는 압축영상을 제어부(7)의 제어를 받아 상대방 기기로 전송하거나, 수신된 상대방 영상을 영상 압축/복원부(5)로 공급한다.The communication control and interface unit 6 transmits the compressed image to the counterpart device under the control of the controller 7 or supplies the received counterpart image to the image compression / restore unit 5.

그리고, 핸드셋(8)은 통신제어 및 인터페이스부(6)와 연결되어 사용자와 상대방과의 음성신호 송수신을 수행한다.In addition, the handset 8 is connected to the communication control and interface unit 6 to perform voice signal transmission and reception between the user and the other party.

이때, 상대방측으로부터 사용자에게 전화가 걸려 오면 링신호검출부(9)에서는 통신제어 및 인터페이스부(6)에서 링(Ring)신호에 해당하는 일정 톤펄스신호를 검출하여 제어부(7)로 출력하고, 제어부(7)에서는 링신호가 인가되면 화상전화기가 벨온(Bell-on) 모드인지 벨오프(Bell-off) 모드인지를 판단한다.At this time, when a call is received from the other party to the user, the ring signal detection unit 9 detects a predetermined tone pulse signal corresponding to a ring signal from the communication control and interface unit 6 and outputs it to the control unit 7, When the ring signal is applied, the controller 7 determines whether the video telephone is in the bell-on mode or the bell-off mode.

판단결과, 벨온 모드이면 사용자에게 전화가 왔음을 핸드셋(8)을 통해 벨소리로서 알리고, 벨오프 모드이면 LCD구동부(4)가 온동작하도록 제어하여 LCD구동부(4)에서 LCD(10)를 점멸시킴으로써, 사용자에게 전화가 왔음을 LCD(10)를 이용해 알리게 된다.As a result of the determination, in the bell-on mode, the user is notified of a call through the handset 8, and in the bell-off mode, the LCD driver 4 is controlled to be turned on to flash the LCD 10 in the LCD driver 4. Then, the user is notified of the incoming call using the LCD 10.

따라서, 벨오프 모드에서 전화가 걸려오면 종래와 같이 별도로 발광다이오드를 구비할 필요없이 화상전화기에 구비된 LCD(10)를 통해서 전화가 왔음을 표시할 수 있고 또, LCD(10)가 발광다이오드보다 크기 때문에 사용자가 보다 용이하게 인식할 수 있다.Therefore, when a call is received in the belloff mode, it is possible to indicate that the call is received through the LCD 10 provided in the video telephone without having to separately provide a light emitting diode as in the conventional art. Its size makes it easier for users to recognize it.

본 발명에서는 또 다른 방식으로 벨오프 모드에서 링신호가 검출되면, 제어부(7)에서 OSD IC(11)를 구동시켜 LCD(10) 화면에 OSD문자로서 사용자에게 전화가 왔음을 표시할 수도 있다.In another exemplary embodiment of the present invention, when a ring signal is detected in the belloff mode, the controller 7 may drive the OSD IC 11 to indicate that the user has received a call as an OSD character on the LCD 10 screen.

상기에서 설명한 바와같이, 본 발명에서는 화상 전화기가 벨오프 모드 상태에서 상대방으로부터 전화가 걸려 오면 LCD를 점멸시킴으로써, 별도의 표시수단(발광다이오드) 없이 화상전화기에 구비된 LCD를 통해서 전화가 왔음을 표시할 수 있고 또한 LCD의 부피가 크므로 사용자가 보다 용이하게 인식할 수 있다.As described above, in the present invention, the video telephone flashes the LCD when a call is received from the other party in the belloff mode, thereby indicating that the telephone is received through the LCD provided in the video telephone without a separate display means (light emitting diode). In addition, since the LCD is bulky, the user can easily recognize it.

Claims (2)

링(Ring)신호가 검출되면 화상전화기가 벨온(Bell-on) 모드인지 벨오프(Bell-off) 모드인지를 판단하여 벨온 모드이면 벨소리로서 전화가 왔음을 알리고,벨오프 모드이면 액정표시수단(LCD)을 점멸시켜 전화가 왔음을 표시하는 것을 특징으로 하는 화상전화기의 벨오프 모드에서 LCD를 이용한 링표시 방법.When a ring signal is detected, it is determined whether the video phone is in a bell-on mode or a bell-off mode, and it indicates that the call is a ring tone in the bell-on mode. Ring display method using the LCD in the belloff mode of the video telephone, characterized in that flashing the LCD) to indicate that the call came. 제 1항에 있어서, 상기 LCD 화면에 OSD문자를 이용하여 전화가 왔음을 표시할 수 있음을 특징으로 하는 화상전화기의 벨오프 모드에서 LCD를 이용한 링표시 방법.The ring display method of claim 1, wherein the LCD screen displays an incoming call using an OSD character.
KR1019980053977A 1998-12-09 1998-12-09 Ring display method using lcd in bell-off mode of picture phone KR20000038848A (en)

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