KR100203573B1 - Video multi-processing apparatus of singular channel for a television - Google Patents

Abstract

In the present invention, a video signal having a single audiovisual angle is transmitted to a VHF band channel, and a UHF channel corresponding to a channel of the VHF band is picked up at a different audiovisual angle with respect to the same broadcast program, A video multi-processing apparatus in a single channel capable of selectively receiving and reproducing an audiovisual degree for a single channel UHF band broadcast program in which video signals having different audiovisual degrees are superimposed on a television, to provide.

The broadcast signal according to the channel of the VHF band or the UHF band selected from the tuner 4 is amplified by the intermediate frequency amplifier of the image IF unit 6 and the signal amplification unit 8, 22, and reproduced through the video output unit 24, the television is reproduced in a reproducible manner. In the television, a plurality of pieces of video information captured and multi-transmitted at different angles with respect to a single- A synchronous counter means (10, 12) for counting a synchronous signal included in the multi-transferred image information and generating a counting output, The image information of the angle selected in the audiovisual degree selection mode by the function setting means 14 in the single channel selected through the tuner 4 is output from the synchronization counter means 10, (16) for controlling the video signal processing means (22) so as to perform video multi-processing based on the video signal processing means (22) Display signal processing means (18) for generating display menu information for selecting image information of a predetermined angle from image information of mutually different angles in a single channel by means (14); display control means A mode switching means (20) controlled by the control means (16) for switching a selected angle of the image through the mode switching means (20) And an image multi-processing means (26) for signal-processing the image information of the video signal.

Description

An image multiprocessing device in a single channel

The present invention relates to a video multi-processing apparatus in a single channel, and more particularly, to a video multi-processing apparatus in a single channel, and more particularly to a video multi-processing apparatus in a single channel by superposing and transmitting image signals picked up at mutually different angles, The present invention relates to a video multi-processing apparatus in a single channel capable of reproducing selected audiovisual roads.

Typically, a television is provided that selects a desired single channel from among a plurality of television broadcasting signals transmitted from a plurality of television broadcasting stations through a tuner and reproduces them through video / audio processing. In this typical television, In order to grasp the broadcast contents of the broadcast programs of the other channels, the other channels must be selected and reproduced on the coin surface, so that the broadcast programs of the channels It was supposed to be impossible to reproduce for the song.

In order to solve this inconvenience, a plurality of sub-screens are formed on a single coin surface so that sub-screens (sub-screens) composed of multiple screens can be inserted on a main screen (main screen) reproduced in one CRT device A PIP (Picture In Picture) function is adopted to multiplex the TV broadcast signals of a plurality of channels through the tuner built in the multi-screen television according to the PIP function, So that the video can be output through each designated screen.

In this PIP function, a predetermined block screen is formed by blanking a portion of the main screen on which the sub-screen is to be output, and a composite video signal of RGB according to the sub- So that it is possible to perform mutual replacement operation of the main / sub screen, such as the position shift of the sub screen.

However, at present, a broadcasting station transmitting a single-channel broadcasting program is required to capture an object or a broadcast object at a certain angle and transmit the same on a single area. Therefore, it is impossible to stereoscopically watch a predetermined channel, Even if a television having a PIP function not only reproduces a normal main screen but also selects a channel for a plurality of channels, even if it is picked up at various angles with respect to the broadcast program of the PIP function and transmitted as various broadcast information through a predetermined transmission method It is possible to simultaneously reproduce the screen through the main screen and the plurality of sub-screens. However, the multi-reproduction can not be performed for a broadcast program which is captured and multi-transmitted at a plurality of angles with respect to a single channel.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an apparatus and method for transmitting a video signal having a single audiovisual angle to a VHF band channel, So that it is possible to selectively receive and reproduce an audiovisual degree for a broadcast program of a single channel in the UHF band in which captured video signals are superimposed with different audiovisual degrees on the television side An object of the present invention is to provide an image multi-processing apparatus in a single channel.

In order to achieve the above object, according to the present invention, there is provided a video multi-processing apparatus in a single channel, wherein a broadcast signal according to a channel of a VHF band or a UHF band selected from a tuner is amplified by an intermediate frequency amplifier of an image IF unit, And outputting the reproduced video information through a video output unit. The television receiver receives predetermined video information from among a plurality of video information which are captured at different angles with respect to a single-channel broadcast program and are multi-transmitted A synchronous counter means for counting a synchronous signal included in the multi-transmitted video information to generate a counting output; a synchronous counter for counting a synchronous signal included in the multi- When the image information of the angle selected in the audiovisual degree selection mode by the function setting means Control means for performing image multi-processing on the basis of the counting output from the counter means and performing image muting to the video signal processing means; Display image signal processing means for generating display menu information for allowing image information of a predetermined angle to be selected from image information of mutually different angles in the single channel, And an image multiprocessing means for regenerating the image information of the selected angle through the mode switch means under the control of the control means so as to reproduce the image information reproducibly, A multi-processing apparatus is provided.

According to the present invention configured as described above, video signals having a single imaging angle are transmitted in a single channel of the VHF band, and channels of the UHF band allocated on the broadcasting station side allocating channels of the VHF band are transmitted The video signals picked up at different angles with respect to the program are alternately superimposed and transmitted on a video frame basis. Accordingly, if video information picked up at a predetermined angle is selected from the video signal of the single channel on the television side, The channel selection of the channel is performed so that only the video signal corresponding to the picked-up image of the selected angle is processed by the multi-signal processing.

FIG. 1 is a block diagram showing a state in which a video multi-processing apparatus in a single channel according to the present invention is applied to a television;

FIG. 2 is a diagram illustrating an exemplary screen display state for selecting an audiovisual degree for image multi-processing in a single channel according to a preferred embodiment of the present invention; FIG.

FIG. 3 is a block diagram showing a detailed configuration of the image multi-processing unit shown in FIG. 1;

4 is a diagram illustrating a state in which image signals having different audiovisual angles are superimposed and transmitted according to a preferred embodiment of the present invention.

5 is a timing chart showing a state of multiprocessing a video signal corresponding to a selected audiovisual degree according to the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

2: receiving antenna, 4: tuner,

6: image IF section, 8: image amplification section,

10: synchronization extracting unit, 12: counter,

14: function setting section, 16: microcomputer,

18: an OSD signal processing unit, 20: a mode switch unit,

22: video signal processing unit, 24: video output unit,

26: video multi-processing unit, 28: audio IF unit,

30: audio processing unit, 40: ADC,

42: image memory, 44: DAC,

46: first PLL circuit part, 48: second PLL circuit part.

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

That is, FIG. 1 is a block diagram showing a state in which a video multi-processing apparatus in a single channel according to the present invention is applied to a television. In the apparatus of the present invention, reference numeral 4 denotes a predetermined channel selection from a microcomputer 16 (VHF band channel or UHF band channel) and receives the local oscillation frequency signal mixed with the local oscillation frequency signal generated by the channel selection data (VT) in response to the channel selection data (VT) And outputs it as a frequency signal.

Reference numeral 6 denotes an image IF section for amplifying the selected television broadcast signal with an intermediate frequency and 8 denotes an image amplifying section for signal amplifying the image signal of the intermediate frequency amplified television broadcast to an image processing capable amplification level.

Reference numeral 10 denotes a synchronization extracting unit for separating and extracting a synchronizing signal included in the signal-amplified video signal, and 12 denotes a counter for counting the extracted synchronizing signal to generate a counting output.

Reference numeral 14 denotes a remote controller for remote control or a matrix button unit provided in the control panel unit of the main body so as to select and reproduce a predetermined angle from a video signal according to a result obtained at different angles with respect to a broadcast program of a single channel A channel switching key 14A for switching a broadcast channel, and an audiovisual display for selecting a predetermined angle from a plurality of audiovisual maps assigned to the selected single channel. A setting key 14B for setting a selection mode, and a selection key 14C for selecting a predetermined viewing angle under the viewing angle selection mode.

In addition, reference numeral 16 denotes a broadcast channel of the UHF band corresponding to the corresponding single channel (i.e., a channel of the VHF band) according to the audiovisual selection state in the audiovisual degree selection mode set by the function setting unit 14 And controls the video signal according to the selected viewing angle in the broadcast program according to the selected broadcast channel of the selected UHF band to be selectively reproduced so as to be reproducible and to perform video mute (MUTE ).

Reference numeral 18 denotes an OSD signal processing unit for providing an OSD display menu for displaying a state in which a predetermined audio visual angle is selected from among various audio visual angles for a single channel under the display control of the microcomputer 16. [

As shown in FIG. 2, the OSD signal processing unit 18 includes a display menu for allowing a user to view a normal channel 9, such as a first angle view, for a single channel such as CH9, A display menu requesting selection of a video signal picked up at the same angle and a display menu requesting selection of a video signal picked up at another angle such as a third angle view are displayed on the screen.

At this time, when the display menu for the first angle view is selected, the microcomputer 16 selects a channel corresponding to the VHF band and reproduces the selected channel. When the display menu for the second angle view or the third angle view is selected, Channel tuning data (VT) for tuning a UHF band channel corresponding to the broadcast channel of the VHF band is supplied to the tuner 4 so that the corresponding channel is reproduced.

Reference numeral 20 denotes a mode switch unit for performing a switching operation so as to form a signal path for switching selectively the video signal according to the selected angle in the single channel by controlling the switching by the microcomputer 16 at a high speed.

Reference numeral 22 denotes a video signal processing unit for video signal processing of a video signal picked up at a normal angle from the video amplifying unit 8 through the mode switch unit 20, The image signal is processed by the microcomputer 16 when the audiovisual degree is selected for a predetermined channel, and the image is muted by the microcomputer 16, and 24 is a composite video signal processed by the video signal processor 22 or a video multi- And reproduces the video signal according to a predetermined imaging angle, which is multi-processed, in a reproducible manner and outputs the amplified video signal.

Reference numeral 26 denotes a microcomputer which is activated under the control of the microcomputer 16 and which corresponds to a predetermined selected imaging angle through the mode switch unit 20 synchronously with the synchronization signal from the synchronization extraction unit 10. [ And a video signal processing unit for processing the video signal.

3, the image multi-processing unit 26 samples an image signal according to a predetermined imaging angle through the mode switch unit 20 at a sampling rate synchronized with the first clock signal CLK1 And a write enable signal W ENA of the microcomputer 16 to enable the recording operation so that the digital converted image data is converted into the digital data, A video memory 42 for storing video data at a recording speed synchronized with the first clock signal CLK1 and storing the video data in units of video frames and reading the stored video data at a reading speed synchronized with the second clock signal CLK2, A data inversion unit 44 for analog-converting the double-speed-converted image data so as to reproduce an image, a first clock signal CLK1 by PLL-processing a synchronous signal included in a video signal of the channel by a predetermined division ratio, And a second clock signal CLK2 having a double speed with respect to the first clock signal CLK1 (that is, the first clock signal CLK1 And a second PLL circuit portion 48 for generating a clock signal having a half clock pulse period with respect to the clock pulse period of the clock signal CLK.

As shown in FIG. 4, the video signal of the broadcast channel according to the VHF band having the different imaging angles is divided into a first frame, a second frame, a second frame, (I.e., a video signal) captured at a third angle and a video signal (i.e., a video signal) captured at a third angle are alternately superimposed and transmitted in units of one frame, The image signals picked up at the angles each provide 15 still images per second.

As shown in FIG. 5, when the reproduction of the video signal at the second imaging angle is selected, the video signal subjected to the multi-processing through the video multi-processing unit 26 is divided into a frame-frame-frame- It is possible to provide 30 still images per second by allowing double speed conversion such as ㉮ frame / ㉮ frame - ㉮ frame / ㉮ frame - ㉮ frame / ㉮ frame, ... It is possible to realize a moving image.

At this time, the microcomputer 16 synchronizes with the counting output from the counter 12 so that the mode switch unit 20 can restrictively process only the video frames for the video signal of the selected imaging angle, Speed switching control is alternately performed.

Reference numeral 32 denotes an audio IF unit for amplifying a sound intermediate frequency signal of a television broadcast selected through the tuner 4, and 34 denotes an audio IF unit for amplifying the audio signal, .

The operation of the present invention as described above will now be described in detail with reference to the accompanying drawings.

First, when the channel switching key 14A of the function setting unit 14 is operated to select, for example, channel 9, the microcomputer 16 generates channel tuning data (VT) for the selected channel, (4) tunes the corresponding channel by the channel tuning data (VT).

At this time, when the viewing angle selection mode is set by the setting key 14B of the function setting unit 14, the microcomputer 16 sets the OSD signal processing unit 18 The OSD display menu is displayed on the screen as shown in FIG. 2, so that the viewing angle of the second angle view is set while the selection key 14C is operated.

In addition, the microcomputer 16 causes the tuner 4 to select a broadcast channel of the UHF band corresponding to the selected channel 9, for example, and controls the mode switch unit 20 to select As shown in the figure, among the video signals picked up at the second capturing angle and the video signals picked up at the third capturing angle, such as the frame-frame-frame-frame-frame-frame-frame, So that only the corresponding video signal is selectively supplied to the video multi-processing unit 26.

Accordingly, in the image multi-processing unit 26, the image data digitally converted by the ADC 40 is converted from the image memory 42 to the recording speed synchronized with the first clock signal CLK1 from the first PLL circuit unit 46 And reads and stores the image data stored at the reading speed synchronized with the second clock signal CLK2 assigned to the first clock signal CLK1 from the second PLL circuit unit 48 in the frame unit and performs a speed conversion The analog-converted image signal through the DAC 44 is output in the form of double-speed converted as shown in FIG.

As a result, the video signal output through the video output unit 24 is displayed on the video screen at an angle different from that of the broadcast program on the channel of the normal VHF band so as to correspond to a predetermined imaging angle, As shown in FIG.

As described above, according to the present invention, it is possible to select a predetermined imaging angle from a video signal transmitted from a television with various imaging angles and to selectively reproduce the video signal, advantageous in that a more stereoscopic viewing of a single channel is possible .

Claims (5)

A broadcast signal according to a channel of the VHF band or the UHF band selected from the tuner 4 is amplified by the intermediate frequency amplifier of the image IF unit 6 and the signal amplification unit 8, In a television which is signal-processed and reproducibly output through the video output unit 24, Function setting means (14) for performing function setting in accordance with an audiovisual degree selection mode for selecting predetermined video information among a plurality of video information which is captured and multi-transmitted at mutually different angles with respect to a broadcast program of a single channel, Synchronization counter means (10, 12) for counting a synchronization signal included in the multi-transmitted image information and generating a counting output, The image information of an angle selected in the audiovisual degree selection mode by the function setting means 14 on a single channel selected through the tuner 4 is output to the image multi- A control means (16) for controlling the video signal processing means (22) to perform image muting (MUTE) Display signal processing means for generating display menu information for selecting image information of a predetermined angle from image information of mutually different angles in a single channel by the function setting means (14) under display control of the control means (16) 18), A mode switching means (20) switched by the control means (16) so that image information of an angle selected from the single channel is switched so as to pass a signal for image multi-processing, And an image multiprocessing means (26) which is controlled by the control means (16) and reproduces the image information of the selected angle through the mode switch means (20) in a reproducible manner. Image multiprocessing apparatus. The method as claimed in claim 1, wherein the image information at different angles in the single channel includes image information at different angles in units of frames of a composite image signal allocated to a channel of a UHF band corresponding to a corresponding channel of the VHF band Wherein the first and second image signals are superimposed alternately. 3. The apparatus according to claim 1 or 2, characterized in that when the multi-playback of image information at different angles is set for a single channel of the VHF band by the function setting means (14), the control means (16) Channel tuning data (VT) for selecting a broadcast channel of a UHF band corresponding to a channel is supplied to the tuner (4). 3. The image processing apparatus according to claim 1 or 2, wherein the control means (16) alternately switches the mode switch means (20) so that only the image frame of the selected angle is supplied to the image multiprocessing means (26) Wherein the control unit controls the plurality of image processing units in the single channel. The image processing apparatus according to claim 1, wherein the image multi-processing means (26) samples an image signal according to a predetermined selected angle through the mode switch means (20) at a sampling rate synchronized with the first clock signal (CLK1) And a control unit (16) for storing the digitally converted image data at a recording speed synchronized with the first clock signal (CLK1), and for storing the stored image data An image memory 42 for reading the image data at a reading speed synchronized with the second clock signal CLK2 and performing double speed conversion, a data inversion section 44 for analog-converting the double-speed-converted image data for image reproduction, A first clock generator 46 for generating a first clock signal CLK1 by performing a PLL process on a synchronizing signal included in the first clock signal CLK1 in a predetermined division ratio, CLK1) Multi-image processor in a single channel that is configured with a second clock generating unit 48 for generating a second clock signal (CLK2) having a speed which is characterized.