KR200172465Y1 - Pip-tv for having recording-skill in double-mode - Google Patents

Abstract

Disclosed is a multi-screen television having a double-screen recording function in which the recording time of the main screen and the sub-screen is set in the state of the multi-screen television in the double-screen mode so that the double screen is recorded in the VTR. When a viewer records a broadcasting program of two channels using a television having a PIP function, the viewer selects a multi-screen television in a double screen mode and selects a main video signal displayed on the main screen and a sub video signal displayed on the sub screen. Select the double screen recording mode to record simultaneously. When the double screen recording mode is selected for the multi-screen television, the double screen recording mode is displayed on the screen, and the viewer selects a desired channel and a recording time by using the double screen recording mode. Since the channel displayed on the main screen and the channel displayed on the sub screen are recorded for a predetermined time through the double screen recording mode, the viewer can record and watch all desired broadcast programs.

Description

Multi-screen television with double screen recording

The present invention relates to a multi-screen television. More specifically, a television having a picture in picture function sets a recording time of a main screen and a sub-screen in a double screen mode, and records a double screen on a VTR. The present invention relates to a multi-screen television having a double screen recording function.

In general, a television receives a broadcast signal transmitted from each broadcasting station through an antenna to display a broadcast corresponding to a screen. The video of an object photographed by a camera at the broadcasting station is converted into a video signal, and the video signal is a constant high frequency signal. It transmits through a transmit antenna. The high frequency signal transmitted through the transmitting antenna is received through a receiving antenna installed in each home and applied to the television. The high frequency signal received by the television is converted to a predetermined intermediate frequency through a tuner circuit unit, and then amplified into a signal having a constant size in the intermediate frequency amplification unit, and the image signal and audio signal detection unit detects the video signal and the audio signal, respectively. After the step, the video signal is applied to the screen of the receiving tube through the demodulation circuit and displayed, and the audio signal is output through the speaker. In this case, when the user selects a broadcast channel to receive through a television using a channel conversion switch, a program of a corresponding broadcasting station is displayed on the screen.

When the multi-screen function is adopted in the television having the above function, the main screen and a plurality of sub-screens (PIP) are displayed on the screen of the television. A separate video signal processing system is installed for the main screen and the sub screen, respectively. That is, a main tuner circuit portion for receiving a main video signal displayed on the main screen is provided, and a sub tuner circuit portion for receiving sub video signals displayed on the sub screen is provided, and the main tuner circuit portion and the plurality of sub tuner circuit portions are broadcasted. It is connected to one antenna for receiving a high frequency signal which is a video signal and simultaneously receives all high frequency signals. Therefore, in order to display the sub-screens overlapped with a part of the main screen, a tuner circuit part for a separate sub-screen is installed so that the main screen is not output in the PIP area where the sub-screen is displayed, and the sub-screen is outputted. do.

1 is a block diagram schematically showing an operation of a television having a general PIP function.

Referring to FIG. 1, a main tuner circuit unit which selects a high frequency signal corresponding to a channel to be displayed on a main screen from among high frequency signals received through an antenna 24, converts it into an intermediate frequency, and then amplifies and generates a composite video signal. 10; A main video signal processor (12) for controlling the composite video signal applied from the main tuner circuit unit (10) to be displayed on the water pipe (22); A sub-tuner circuit unit 14 for selecting a high-frequency signal corresponding to a channel to be displayed on a sub-screen among the high-frequency signals received through the antenna 24, amplifying it to an intermediate frequency, and generating a composite video signal through a series of processes; A PIP control unit 18 connected to the sub-tuner circuit unit 14 for selecting and generating a composite video signal applied from the sub-tuner circuit unit 14 by a PIP function; A switching unit 16 connected between the main video signal processing unit 12 and the PIP control unit 18 and controlling a transmission path of signals transmitted between the main video signal processing unit 12 and the PIP control unit 18; And a signal applied from an external button unit (not shown) connected to the main tuner circuit unit 10, the sub tuner circuit unit 14, the main video signal processing unit 12, the PIP control unit 18, and the switching unit 16. According to the microcomputer 20 to control each operation.

In the television having the PIP function, the microcomputer 20 recognizes this when the viewer selects a multi screen using the screen selection button of the button while watching a broadcast program using the television having the PIP function. The multi-screen signal is popular, the main video signal processor 12 applies an OSD blanking signal corresponding to the number of multi-screens, and the main video signal applied through the main tuner circuit 10 to the switching unit 16. Is blocked so that only the signal applied from the PIP control unit 18 is applied to the main video signal processing unit 12. The main video signal processor 12 displays an OSD screen on the water pipe 22 by an OSD blanking signal applied from the microcomputer 20, and the switching unit 16 is a multi-screen applied from the PIP controller 18. Since all video signals are applied to the main video signal processor 12, the main video signal processor 12 blocks the main video signal applied from the main tuner circuit 10 and displays the video signal from the PIP controller 18 on the OSD screen. Display on. Therefore, the full screen (CRT) 22 displays the multi-screen selected by the viewer.

Conventionally, when recording a broadcast program broadcasted on a television to the VTR, a broadcast program of a set channel is recorded by setting a channel to be recorded and a recording time. Therefore, if a broadcast program broadcast from two channels is to be recorded, In this case, it is inconvenient to select and record only one.

The present invention was devised to solve the above problems, and an object of the present invention is to double-record a broadcast program displayed on a main screen and a sub screen at the same time in a double screen mode using a multi-screen television. The present invention provides a multi-screen television having a screen recording function.

1 is a block diagram schematically showing an operation of a television having a general PIP function.

2 is a block diagram schematically illustrating a multi-screen television having a screen zoom function according to the present invention.

Explanation of symbols on the main parts of the drawing

50: main tuner circuit 52: sub-tuner circuit

54: main video signal demodulator 56: switching unit

58: water pipe drive 60: screen

70: microcomputer 72: PIP signal processing unit

74: external output terminal 76: VTR

78: antenna 80: remote controller

90: memory 100: OSD screen

110: general recording menu 120: double recording menu

122: main menu 124: sub menu

130: cursor

In order to achieve the above object, the present invention includes a main tuner circuit unit for converting and amplifying a video signal of a selected channel to an intermediate frequency which is easy to amplify for display on a main screen among high frequency signals received through an antenna; A main video signal demodulator for detecting and demodulating a video signal from an intermediate frequency applied from the main tuner circuit and outputting the video signal to a water pipe drive; A sub-tuner circuit unit for selecting a high frequency signal received through an antenna, converting and amplifying the intermediate frequency into an intermediate frequency, and detecting an image signal from the intermediate frequency so that the image signal is displayed on a sub-screen displayed on the screen; A switching unit connected to the main tuner circuit unit and the PIP signal processing unit, for switching the image signals applied from the main tuner circuit unit and the PIP signal processing unit, and applying them to a main image signal demodulation unit, a PIP signal processing unit, and a VTR connected to an external output terminal; A PIP signal processing unit connected to the sub-tuner circuit unit and the switching unit and applying a video signal applied from the sub-tuner circuit unit and the switching unit to the main image signal demodulation unit and the VTR through the switching unit; The switching unit, the PIP signal processing unit and the main video signal demodulation unit are connected to the main video signal demodulation unit. In the double screen recording mode, the switching unit applies the main video signal and the sub video signal to the VTR through an external output terminal. A multi-screen television having a double screen recording function made of a microcomputer is provided.

According to the present invention, when a viewer records a broadcasting program of two channels using a television having a PIP function, the multi-screen television is selected as a double screen mode and displayed on the main video signal and the sub screen displayed on the main screen. Select the double screen recording mode to record the sub video signals simultaneously. When the double screen recording mode is selected for the multi-screen television, the double screen recording mode is displayed on the screen, and the viewer selects a desired channel and a recording time by using the double screen recording mode. Since the channel displayed on the main screen and the channel displayed on the sub screen are recorded for a predetermined time through the double screen recording mode, the viewer can record and watch all desired broadcast programs.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

2 is a block diagram schematically showing a multi-screen television having a double screen recording function according to the present invention.

3 is a view schematically showing a double screen recording mode according to the present invention.

Referring to FIGS. 2 and 3, a multi-screen television having a double screen recording function is described. The high frequency signal received through the antenna 78 is converted into an intermediate frequency by the main tuner circuit unit 50 and displayed on the main screen. Done. The intermediate frequency amplified by the main tuner circuit unit 50 is detected and demodulated by the main video signal demodulator 54 and applied to the water pipe drive 58 and displayed on the screen (CRT) 60. In addition, the high-frequency signal received through the antenna 78 is applied to the sub-tuner circuit unit 52, the sub-tuner circuit unit 52 converts and amplifies the high-frequency signal to the intermediate frequency and then detects the video signal from the intermediate frequency The video signal is displayed on the sub screen displayed on the screen 60. A switching unit 56 is connected to the main tuner circuit unit 50 and the PIP signal processing unit 72, and the switching unit 56 is a main image applied through the main tuner circuit unit 50 and the PIP signal processing unit 72. The signal and the sub video signal are switched and applied to the main video signal demodulator 54, the PIP signal processor 72, and the VTR 76 connected to the external output terminal. A PIP signal processor 72 is connected to the sub-tuner circuit 52 and the switch 56, and the PIP signal processor 72 is configured to receive an image signal applied from the sub-tuner circuit 52 and the switch 56. It is applied to the main video signal demodulator 54 and the external output terminal 74 through the switching unit 56 again. The microcomputer 70 is connected to the switching unit 56, the PIP signal processing unit 72, and the main video signal demodulation unit 54. When the microcomputer 70 is in the double screen mode, the microcomputer 70 switches. The unit 56 allows the main video signal and the sub video signal to be applied to the VTR 76 through the external output terminal 74.

According to the present invention, when a viewer records a broadcast program using a multi-screen television, the viewer applies a recording mode switching signal to the television by pressing a button provided on the remote controller 80. When the recording mode switching signal is applied to the television, it is applied to the microcomputer 70 through a signal receiver (not shown) installed at one side of the television, and the microcomputer 70 is applied by the recording mode switching signal applied through the signal receiving unit. A switching signal for switching the recording mode to the main video signal demodulation section 54 and the PIP signal processing section 72 is applied. The main video signal demodulator 54 displays the OSD screen 100 on the screen 60 through the water pipe drive 58 according to the recording mode switching signal. In addition, the PIP signal processing unit 72 receives the recording menu data stored in the memory unit 90 through the switching unit 56 when the switching signal for switching from the microcomputer 70 to the recording mode is applied. ) Is applied. The main video signal demodulator 54 displays the recording menu data applied from the PIP signal processing unit 72 on the OSD screen 100 so that the OSD menu 100 is displayed on the screen 60. The recording menu is provided with a general recording menu 110 and a double recording menu 120, the general recording menu 110 is used when recording reserved only one channel, the double recording menu 120 It is used to record in the double screen mode by selecting two channels at the same time.

Accordingly, the viewer selects and uses the general recording menu 110 or the double recording menu 120 shown in the recording menu, and the double recording menu 120 includes a main menu 122 and a sub menu 124. . The main menu 122 is used to record the main image displayed on the main screen, and the sub menu 124 is used to record the sub image displayed on the sub screen. For example, the main menu 122 and the sub-menu 124 are provided to separately select a time and a channel to be recorded, respectively, and one of the main screen or the sub screen automatically enters the double screen mode when the recording time ends. Recording is switched to 1 screen mode in.

When the OSD screen 100 and the recording menu are displayed on the screen 60 through the main video signal demodulator 54, the remote controller 80 selects whether to perform general recording or double recording. 130) in the corresponding menu. In addition, after selecting the normal recording or the double recording using the cursor 130, the channel to be recorded and the recording time are set to an adjustment button (not shown) provided in the remote controller 80. In the case of the double recording menu 120, since each channel is selected in the main menu 122 and the sub menu 124, the broadcasting time of the main video and the sub video is different, and thus, one of the main video and the sub video. When the recording time is over, the microcomputer 70 automatically switches to one screen.

As can be seen from the above description, the present invention selects a multi-screen television in a double-screen mode when the viewer records a broadcast program of two channels using a television having a PIP function, and displays the main screen. The double screen recording mode is selected so that the video signal and the sub video signal displayed on the sub screen can be recorded simultaneously. When the double screen recording mode is selected for the multi-screen television, the double screen recording mode is displayed on the screen, and the viewer selects a desired channel and a recording time by using the double screen recording mode. Since the channel displayed on the main screen and the channel displayed on the sub screen are recorded for a predetermined time through the double screen recording mode, the viewer can record and watch all desired broadcast programs.

Claims (6)

A main tuner circuit unit 50 for converting and amplifying a video signal of a selected channel into an intermediate frequency which is easily amplified for display on a main screen among high frequency signals received through the antenna 78; A main video signal demodulator 54 for detecting and demodulating a video signal from an intermediate frequency applied from the main tuner circuit unit 50 and then outputting the video signal to the screen 60 through the water pipe drive 58; A sub-tuner circuit unit 52 for selecting a high frequency signal received through the antenna 78, converting and amplifying the intermediate frequency into an intermediate frequency, and detecting an image signal from the intermediate frequency so that the image signal is displayed on the sub-screen shown on the screen; The main video signal demodulator 54 and the PIP signal are connected to the main tuner circuit 50 and the PIP signal processor 72 by switching the video signals applied from the main tuner circuit 50 and the PIP signal processor 72. A switching unit 56 applied to a VTR or the like connected to the processing unit 72 and the external output terminal 74; The main video signal demodulation unit is connected to the sub-tuner circuit unit 52 and the switching unit 56, and mixes the image signals applied from the sub-tuner circuit unit 52 and the switching unit 56, and then switches the main image signal demodulation unit through the switching unit 56. A PIP signal processor 72 for applying to the 54 and the VTR 76; And The switching unit 56 is connected to the switching unit 56, the PIP signal processing unit 72, and the main video signal demodulation unit 54, and the switching unit 56 is the external output terminal 74 in the double screen recording mode in the double screen mode. A multi-screen television having a double screen recording function consisting of a microcomputer 70 for applying a main video signal and a sub video signal to the VTR 76 through a. The main video signal demodulator of claim 1, wherein the PIP signal processor 72 receives the recording menu data stored in the memory unit 90 through the switching unit 56 when the recording mode switching signal is applied from the microcomputer 70. A multi-screen television having a double screen recording function, characterized in that 54 is applied. The display device of claim 1, wherein the main video signal demodulator 54 displays the OSD screen 100 on the screen 60 when the recording mode switching signal is applied from the microcomputer 70, and the PIP signal through the switching unit 56. A multi-screen television having a double screen recording function characterized by displaying a recording menu applied from the processing unit 72 on the OSD screen (100). The method of claim 3, wherein the recording menu is composed of a general recording menu 110 and a double recording menu 120, the double recording menu 120 is composed of a main menu 122 and a sub-menu 124, The general recording menu (110) and the double recording menu (120), the multi-screen television having a double screen recording function, characterized in that the setting for each channel and recording time to record, respectively. According to claim 1 or claim 4, wherein the microcomputer 70 in the double recording mode, if the recording time selected in the main menu 122 and the sub-menu 124, respectively, constituting the double recording menu 120 is different one A multi-screen television having a double screen recording function, characterized in that the automatic switching to one screen when the recording time is over. The method of claim 1, wherein the microcomputer 70 is switched so that the switching unit 56 is applied to the VTR 76 to the video signal applied from the PIP signal processing unit 72 through the external output terminal 74. Multi-screen television with double screen recording function.