KR19990001260A - Fax function OSD display control device for television - Google Patents

Abstract

The present invention provides a fax function for displaying the fax contents on a CRT screen by converting the received fax information into OSD text data on a television equipped with a fax function capable of transmitting / receiving fax information. Provides FAX information OSD display control device.

To this end, the present invention performs a voice processing operation for the audio signal of the television broadcast through the audio processing means (2, 4), and an image processing operation for the video signal of the television broadcasting through the image processing means (2,4) and In addition, the fax received through the character conversion operation of the fax information data through the fax signal conversion unit 12 by performing the transmission and reception of the fax data via the public telephone network (PSTN) by the modulation and demodulation operation of the fax modem 10. In a fax function television for outputting information on a fax paper, it is a fax paper for fax text data according to fax information received through the fax modem 10 and MMR decoded through the fax signal converting unit 12 and converted into text. A facsimile output switching means 14 and a facsimile output switching means 14 for switching to provide a transmission path of data for selectively outputting or outputting in audio form. OSD signal processing for generating the OSD display signal for screen display of the corresponding fax information by receiving the fax character data according to the fax information from the fax signal conversion unit 12 and converting the data into the OSD character characters. Means (16), function setting means (20) for inputting a function command to display the fax information received through the fax modem (10) in the form of an OSD display character, and a key of the function setting means (20). In addition to switching and controlling the fax output switching means 14 so that the fax character data through the fax signal converter 12 is supplied to the OSD signal processing means 16 for displaying the OSD conversion. And control means (22, 24) for controlling the OSD conversion and display of the fax character data to the processing means (16).

Description

Fax function OSD display control device for television

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fax information OSD display control apparatus for a fax function television. More particularly, the present invention is capable of transmitting and receiving facsimile information consisting of text and image information with a counterpart through a public telephone network (PSTN). The present invention relates to a fax information OSD display control apparatus for a fax function television that converts the fax information received from the other party into a OSD character form on a television having a fax function.

Nowadays, in a general television, a TV that enables video / audio playback through a CRT and a speaker by selecting and outputting a predetermined channel to a broadcast RF signal of a plurality of channels transmitted from a plurality of television stations in the form of airwaves, respectively. In addition to having a video / audio playback function of broadcasting, video / audio information from a video recording medium such as a video tape that is read by an external video playback device such as a video tape recorder is introduced. It also has an external signal video / audio playback function for playback through the CRT and speakers.

In addition, in such a television, the OSD (On-Screen) is used as a part of visually confirming the appropriate adjustment or setting by the viewer in the overall function adjustment or function setting mode such as switching of a broadcasting channel, volume adjustment, or on / off timer reservation function. Display) character display function is adopted. In this OSD character display function, character character data and graphic data for an item for function adjustment or function setting are combined with a video signal of a television broadcast, and a predetermined image of a CRT screen is displayed. The screen is displayed in the area.

On the other hand, in such a television, in order to diversify functions, when a telephone number is inputted by connecting a telephone line with a public telephone network, a call operation can be made with the other party's receiver and a call received from the other party. The call-in / out function has been developed and adopted. According to such a call-in / out function, when a call is received while the television is in a viewing state or when a call needs to be made with a predetermined receiver, the telephone is not moved to a remotely located location. Also, a telephone number can be input by a button operation by a remote controller for remote control, or a handset operation can be performed with a counterpart through a handset provided at a predetermined portion of the remote controller.

In addition to the above-described function of making and receiving a voice call through a public telephone network, such a television can transmit and receive text and images in a predetermined data format such as MMR format to receive and output through a fax paper. As the fax function is adopted, the fax function provided in the television includes a fax modem for performing data demodulation and demodulation over a public telephone network in accordance with the recommendation of CCITT T.30, and a scanning operation for transmitting predetermined text or image information. Scanning means, a fax output means such as a thermal transfer printer for receiving and outputting fax information received from a counterpart on a predetermined fax paper, and applying data for receiving and modulating transmission of demodulated data from the fax modem; In addition, the scanning operation and the fax output operation of the scanning means and the fax output means The fax control means that control is provided.

A television with such a fax function can transmit a predetermined text or image information through a public telephone network even while watching television without receiving a separate fax machine, and receives the received fax information through a fax paper. It is possible to confirm.

However, in such a fax function television, when receiving the fax information transmitted from the other party through the public telephone network, it is necessary to use the dedicated fax paper to output the received information. Only by the completion of the output of the fax paper is not only easy to quickly check the information, but also has the disadvantage of causing unnecessary waste of the fax paper due to the inevitable progression of the output through the fax paper for the unwanted output information.

Accordingly, the present invention has been made in view of the above circumstances, and the contents of the corresponding fax contents on the CRT screen are converted into OSD text data for the fax information received from a television equipped with a fax function capable of transmitting / receiving fax information. It is an object of the present invention to provide a facsimile information OSD display control apparatus for a television function television capable of displaying an OSD.

In order to achieve the above object, according to the fax information OSD display control apparatus of a fax function television according to the present invention, an audio processing operation for an audio signal of a television broadcast through audio processing means, and an image of television broadcasting through an image processing means. Fax information received through the character conversion operation of the fax information data through the fax signal conversion unit by performing the image processing operation on the signal and performing the transmission / reception of the fax data via the public telephone network by the modulation / demodulation operation of the fax modem. In a fax function television for outputting a fax on a fax paper, output to a fax paper or voice form for the fax text data according to the fax information converted through the MMR decoded through the fax signal conversion unit and the fax signal conversion unit. A pack for switching which provides a transmission path of data for selectively performing or not By converting the data into the OSD character text by receiving the fax character data according to the fax information from the fax signal converting unit through the output switching means and the fax output switching means, OSD signal processing means for generating an OSD display signal, function setting means for keying in a function command to display the fax information received through the fax modem in the form of an OSD display character, and according to a key operation of the function setting means. Switching and controlling the fax output switching means so that the fax character data through the fax signal converting unit is supplied to the OSD signal processing means for the OSD conversion display, and also OSD conversion and screen display of the fax character data for the OSD signal processing means. Provides a facsimile information OSD display control apparatus for a fax function television having a control means for controlling the The.

According to the present invention configured as described above, when a television with a fax function is converted into text data by MMR decoding processing for fax information received through a fax modem, an OSD for the text data of the fax information is displayed. The conversion processing is performed so that the characters of the OSD converted fax information can be displayed on the CRT screen.

1 is a block diagram showing a fax information OSD display control apparatus for a fax function television according to the present invention;

2 is a block diagram showing a detailed configuration of the fax signal converter shown in FIG. 1 according to a preferred embodiment of the present invention;

3 is a block diagram showing the detailed configuration of the OSD signal processing unit for OSD conversion of the fax information shown in Figure 1 according to a preferred embodiment of the present invention;

4 is a diagram illustrating an example in which fax information received from a counterpart is displayed on the CRT screen in the form of OSD text according to a preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

2: audio signal processing unit, 4: audio output unit,

6: video signal processor, 8: video output unit,

10: fax modem, 12: fax signal converter,

14: fax output switching unit, 16: OSD signal processing unit,

18: synchronous separation section, 20: function setting section,

22: main control unit, 24: fax control unit,

30: data receiver, 32: MMR memory,

34: character data processing unit, 36: MMR control unit,

38: MMR control memory, 40: output buffer,

42: fax character receiving unit, 44: fax character memory,

46: OSD character memory, 48: OSD conversion unit,

50: OSD control unit, 52: control memory,

54: signal conversion section.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a fax information OSD display control apparatus for a fax function television according to the present invention. In the apparatus of the present invention, reference numeral 2 is tuned through a tuner (not shown), so that intermediate frequency conversion and amplification are performed. A voice signal processing unit for processing a voice signal and outputting the voice IF signal according to the television broadcast of a predetermined channel on which the processing has been performed; Represents wealth.

Also, reference numeral 6 denotes an image IF signal according to the television broadcast, which is synthesized and output as an R / G / B color signal through image signal processing such as luminance adjustment and color demodulation processing through a band amplification process and color synchronization process. 8 shows an image output unit for outputting an image through a CRT screen through amplification driving of the R / G / B color signal processed by the image signal.

Also, reference numeral 10 is connected to a public telephone network (PSTN) via a telephone line, and modulates data of fax information to be transmitted by a modulation / demodulation method such as VSB modulation and demodulation according to the recommendation of CCITT T.30. In addition, it represents a fax modem for data demodulation processing received fax information received from the other party, and 12 indicates that the fax information data received and demodulated through the fax modem 10 in the recommendations of CCITT T.4, T.6. According to the MMR method according to the present invention, there is shown a fax signal converter which converts and converts to fax character data that can be output in the form of characters or images.

Here, the fax signal converting unit 12 receives the data received by the fax information data received through the fax modem 10, the data demodulation process as shown in Figure 2 and buffered 30, and the received fax The MMR memory 32, which is made of DRAM, for storing information data for MMR data processing, and the fax information data from the MMR memory 32 is stored in the MMR control memory 38 under the function control of the fax control section 26 described later. The MMR memory unit 32 under the data coding control of the MMR control unit 36 and the MMR control unit 36, which perform MMR data coding based on the MMR control program and perform a control operation for restoring processing as character data (or image data). A character data processing unit 34 which performs MMR coding on the fax information data into the character data and an output server buffering and outputting the fax character data generated as a result of the MMR data coding process. It is configured to include a 40.

Reference numeral 14 denotes receiving or outputting the fax text data according to the fax information converted through the fax signal converting unit 12 under a switching control of the main control unit 22 to be described later, or using a predetermined fax paper. According to an embodiment, a fax output switching unit is switched for switching to form an optional signal path for converting and outputting corresponding fax information in the form of OSD characters.

Also, reference numeral 16 denotes an OSD that converts the fax text data according to the fax information received from the fax signal converting part 12 into the OSD display text so as to be displayed on the screen. 18 shows a synchronization processing unit for separating the horizontal / vertical synchronization signal (HS / VS) from the video signal according to the television broadcasting of the predetermined channel tuned through the tuner.

Here, the OSD signal processing unit 16 receives the fax character data according to the fax information from the fax signal converting unit 12, as shown in FIG. A fax character memory 44 made of DRAM, for storing received fax character data for conversion into OSD display characters, an OSD character memory 46 storing a plurality of OSD character data corresponding to the fax character data, and the synchronization The fax character data from the fax character memory 44 is synchronized from the OSD character memory 46 in synchronization with the horizontal / vertical synchronization signal (HS / VS) from the video signal of the television broadcast separated by the separating unit 18. Character conversion control stored in the control memory 52 by controlling operation by the OSD control unit 48 for data conversion processing based on the read OSD character data and the function control (MCS) of the main control unit 22 described later. OSD control unit 50 for performing control for converting the fax character data into OSD character data in accordance with a control program for the OSD, and fax information converted through the OSD conversion unit 48 And a signal converter 54 for analog-converting the OSD display data to the video signal processor 6.

Further, reference numeral 20 is composed of a matrix button unit provided in a predetermined portion of the remote control remote control unit or the control panel of the main body, and performs key operation for performing general function commands related to tuning / reproducing television broadcasting assigned to the television. General key operation for transmission or reception of fax information, and key input of a function command for converting characters of fax information received through the fax modem 10 into OSD display characters and displaying them on a CRT screen. Displays the function setting section.

Reference numeral 22 denotes the control of the overall functional operation related to the selection / reproduction of the television broadcast of the television according to the key operation of the function setting unit 20, and the overall functional operation related to the transmission / reception of the fax information. As the main control unit which performs control communication together with the fax control unit 24 which will be described later, the main control unit 22 is the function setting unit 20 when the fax information from the other party is received through the fax modem 10. When a function command for screen display by OSD conversion of the corresponding fax information is executed by the key operation of, the MMR coding operation of the fax information received by the control communication with the fax control unit 24 described below and the MMR coded fax character thereof are performed. The screen display operation is controlled by converting data into OSD display characters.

Further, reference numeral 24 performs control communication with the main control unit 22 to generate a fax output control signal for character conversion operation by MMR coding for the fax signal conversion unit 12 and reception output to the fax paper. Shows the fax control unit.

Next, the operation of the present invention made as described above will be described in detail with reference to the accompanying drawings.

First, when a television broadcast signal of a predetermined channel tuned through a tuner (not shown) performs an intermediate frequency amplification operation and an image / audio detection operation, the image signal processing unit 4 performs multiple stages on the detected image intermediate frequency signal. The signal amplification and the band amplification are performed, and the synthesized R / G / B color signal is output through the luminance adjustment and the color demodulation of the luminance signal, and the image output unit 8 performs the image signal processing. The R / G / B color signal is amplified and driven to enable image reproduction through the CRT.

In addition, the voice signal processor 2 outputs the voice signal through the sound quality control and volume control process for the voice detected voice signal, and the voice output unit 4 amplifies the speaker by power amplifying the voice signal processed voice signal. Audio can be output through

In this state, when the fax information from a predetermined counterpart is received through the fax modem 10 and the screen display function by OSD conversion is set for the received fax information by the key operation of the function setting unit 20, The main control unit 22 performs control communication with the fax control unit 24 according to the key operation state of the function setting unit 20 so that the received fax information is MMR decoded through the fax signal converting unit 12 so that the fax can be faxed. And converts the fax output switching unit 14 into fax data, and fax character data according to the fax information through the peg signal converting unit 12 is applied to the OSD signal processing unit 16 to process the OSD change. To be possible.

At this time, the MMR memory 32 of the fax signal converter 12 stores and processes the fax information data received from the other party through the data receiver 30, and the MMR controller 36 controls the fax controller. Under the control of (24), based on the MMR control program of the MMR control memory 38, the character data processing unit 34 performs an MMR coding process on the fax information data to control it to be converted into character data. The fax character data converted through the data processing unit 34 is output through the output buffer 40 and applied to the OSD signal processing unit 16 via the fax output switching unit 14.

Accordingly, the OSD control unit 50 of the OSD signal processing unit 16 is received by the fax character receiving unit 42 on the basis of a control program from the control memory 52 under the control of the main control unit 22 to receive the fax character. The OSD conversion unit 48 reads the corresponding OSD character data from the OSD character memory 46 and applies it to the OSD conversion unit 48 to OSD convert the fax character data of the fax information stored in the memory 44. Decodes the OSD character data read from the OSD character memory 46 and outputs the decoded OSD character data. The signal converter 54 converts the OSD display data according to the fax information converted into the OSD via the OSD converter 48. It converts and outputs it to the video signal processing section 6.

Therefore, the OSD display signal according to the image signal processing by the image signal processing unit 6 and the amplification driving through the image output unit 8 is displayed on the CRT screen as shown in FIG.

According to the present invention made as described above, by converting the fax information received through the fax modem in the fax function to the OSD display characters to display the screen, the confirmation of the fax content for the received fax information is Not only can it be made easier and more convenient, it also has the advantage of preventing unnecessary waste of fax paper.

Claims (2)

The voice processing operation for the audio signal of the television broadcast through the audio processing means (2, 4) and the video processing operation for the video signal of the television broadcasting through the image processing means (2, 4) are performed. The fax information received through the character conversion operation of the fax information data through the fax signal conversion unit 12 by performing the transmission / reception operation of the fax data via the public telephone network (PSTN) by the modulation / demodulation operation of 10). In the fax function television to output, Optionally, output is provided in fax form or voice form for fax text data according to the fax information converted through the MMR decoded through the fax signal converting unit 12 and the fax signal converting unit 12. Fax output switching means (14) for switching to provide a transmission path of data for By receiving the fax character data according to the fax information from the fax signal converting unit 12 via the fax output switching means 14 and converting the data into OSD character characters, the screen display of the fax information is displayed. OSD signal processing means 16 for generating an OSD display signal for the A function setting means (20) for keying in a function command to display the fax information received through the fax modem (10) in the form of an OSD display character; According to the key operation of the function setting means 20, the fax output switching means 14 is supplied so that the fax character data through the fax signal converting portion 12 is supplied to the OSD signal processing means 16 for displaying the OSD conversion. In addition to the switching control, it comprises a control means (22, 24) for controlling the OSD conversion and screen display of the fax character data to the OSD signal processing means (16) Information OSD display control device. The method of claim 1, wherein the OSD signal processing means 16 is a fax character receiver 42 for receiving fax character data according to the fax information from the fax signal converter 12 and the received fax character data. Fax character memory (44) for storing, OSD character memory (46) storing a plurality of OSD character data corresponding to the fax character data, and Fax character data from the fax character memory (44). OSD conversion unit 48 for data conversion processing based on the OSD character data read from the control unit, and for converting the fax character data into OSD character data in the OSD conversion unit 48 based on a control program for character conversion control. OSD control unit 50 for controlling, and a signal conversion unit 54 for converting and outputting the OSD display data according to the fax information data converted by the OSD conversion unit 48 to the analog configuration Fax fax function information OSD display control device of the television, characterized by.