KR19980041417A - Tele sequence video display function - Google Patents

Abstract

The present invention relates to a TVCR having a broadcast order guide screen output function so that the user can check the broadcast order of the corresponding channel by recording the screen and replaying it whenever necessary when the user receives the broadcast order guide screen. A video detector for separately detecting a composite video signal from a broadcast signal received by an antenna, an audio detector for detecting only an audio signal, and a deck for recording and reproducing a broadcast signal received according to a predetermined control command. In a tele video, a function selection unit for selecting a 1-frame recording and playback function for an arbitrary screen, a control unit for controlling the operation of the entire apparatus according to the function selection through the function selection unit, and a control command from the control unit Separate switching contact for recording the video guide screen composite video signal output from the image detector An A / V switching unit for converting into an A / V switching unit, an A / D converter for converting and outputting a composite video signal switched by the A / V switching unit into a digital signal, and the A / D converter according to a control signal applied from the control unit A frame storage unit for storing one frame of digital image data output from the frame, a D / A converter for converting and outputting digital image data read out from the frame storage unit into an analog signal, and the D / A converter A frame comparator for comparing the video signal of one frame output from the converter and the video signal switched and output from the A / V switching unit in units of frames, and outputting a determination signal of a first or second level according to whether there is a match. And the control unit executes one frame recording through the deck based on the determination signal from the frame comparison unit, and passes through the function selection unit. It characterized in that it is controlled so that the recorded data is reproduced and output in accordance with the reproduction command.

Description

Tele sequence video display function

The present invention relates to a televideo (TVCR), and in particular, when a broadcast order guide screen is received, the corresponding screen is recorded, and the user can often check the broadcast order of the corresponding channel by replaying it whenever necessary. A TVCR with an occasional output function.

Currently, a so-called tele video device (hereinafter referred to as TVCR), which is formed by integrating a television and a VCR, has been developed and used. Such a TVCR can operate both a TV and a VCR through a single remote control device, and also signals from both devices. Since the connection is already internally connected, the user has several advantages, such as the user does not need to connect using a connector.

On the other hand, Figure 1 is a block diagram showing the internal configuration of a general TVCR, reference numeral 1 in Figure 1 is a remote control device for remote control of the overall operation of the device, 2 is an infrared signal transmitted from this remote control device (1) Receiving unit for receiving and converting it into an electrical code signal, 3 is a control unit for controlling the overall operation of the device based on the code signal applied from the receiving unit 2, reference numeral 4 is a user It is a display unit that can be displayed for checking.

Further, reference numeral 5 denotes an antenna for receiving an over-the-air broadcast signal, 6 is a tuner for tuning a broadcast signal of a channel selected by a user among the broadcast signals received by the antenna 5, and 7 is a tuner ( IF amplifier part for amplifying the intermediate frequency signal (IF) of the channel selected by 6), 8 separates and detects the audio intermediate frequency signal (SIF) and the image intermediate frequency signal (PIF) from the amplified intermediate frequency (IF) signal It is a P / S separation unit.

In addition, reference numeral 9 is a voice detector for detecting and detecting only a voice signal from a voice intermediate frequency (SIF) signal output from the P / S separator 8, and 10 is output from the P / S separator 8. An image detector for detecting and detecting only a composite video signal (CVS) from the image intermediate frequency (PIF), and 11 outputs the voice detector (9) according to a predetermined control command from the controller (3). A / V switching unit for selectively switching a signal, an output signal of the image detector 10, and an input / output signal of the VCR-side recording / reproducing processor 20 to be described later.

On the other hand, reference numeral 12 is a voice processing unit for performing bass, treble, volume control, etc., although not shown for the voice signal switched and output by the A / V switching unit 11, Reference numeral 13 denotes a voice amplifier which amplifies the voice signal processed by the voice processor 12 and outputs it to the speaker 14 connected to the rear stage.

Although not shown in the drawing, reference numeral 15 denotes brightness, tint, and tint of an image signal output from the A / V switching unit 11 according to a predetermined control signal from the controller 3. An image processor which processes R-color, etc., and outputs R (Red), G (Green), B (Blue), and luminance (-Y) signals corresponding to an image signal, and 16 denotes the image processor 15. A CRT driving section for driving the CRT 17 connected to the rear stage on the basis of the R, G, B and luminance (-Y) signals output from the same.

Further, reference numeral 19 denotes a deck which executes recording / playback as well as winding / rewinding / pause of the tape according to a predetermined control command when the VCR mode is selected through the remote controller 8, and 18 denotes the control unit 3. And a deck driving unit for driving and controlling the deck 19 according to a predetermined control command from the deck, and 20 outputs a composite video signal suitable for screen output based on the video and audio signals reproduced and output by the deck 19. In addition, it is a recording / reproducing processing unit for supplying to the deck 19 by executing processing such as YC separation on the broadcast signal output from the A / V switching unit 11 for recording.

That is, in the conventional TVCR having the above-described configuration, the control unit 3 controls the entire apparatus including the A / V switching unit 11 according to the remote control operation of the user, thereby allowing the function of the A / V of the conventional TV. The broadcast signal switched by the V switching 11 can be recorded through the deck 19 or the video and audio reproduced and output by the deck 19 can be reproduced through the CRT screen and the speaker 14.

On the other hand, while watching a program, viewers sometimes turn the channel to check the broadcast program of another channel.If the viewer does not watch the program from the beginning, what is the title of the program that he is currently watching, You may be wondering what time it starts.

In this case, the user usually refers to the broadcast order guide published in a newspaper, etc., which is not only cumbersome but also has a problem in that the desired information cannot be obtained correctly in the case of a broadcast content or a change due to a broadcasting station.

The present invention was created in view of the above circumstances, and when a broadcast order guide screen is received, the corresponding screen is recorded, and the broadcast order guide screen enables the user to check the broadcast order of a corresponding channel by frequently playing whenever necessary. Its purpose is to provide a TVCR with occasional output.

1 is a block diagram showing the internal structure of a typical TVCR.

2 is a block diagram showing a schematic configuration of a TVCR having a function of outputting a broadcast sequence guide screen according to an embodiment of the present invention;

******* Explanation of symbols on the main parts of the drawings *******

1, 21: remote control device 2, 22: receiver

3, 23: control unit 4: display unit

5: antenna 6: TUNER

7: IF amplification part 8: P / S separation part

9: voice detector 10: image detector

11,110: A / V switching unit 12: voice processing unit

13: voice amplifier 14: speaker

15: image processing unit 16: CRT drive unit

17: CRT 18: Deck Drive

19: deck 20: recording / playback processing unit

24: A / D converter 25: Frame storage unit

26: D / A converter 27: Frame comparison unit

In order to achieve the above object, a TVCR having a function of outputting a broadcast sequence guide screen according to an embodiment of the present invention is an image detector for separately detecting a composite video signal from a broadcast signal received by an antenna and a voice detector for detecting only an audio signal. And a deck provided with a deck for recording and reproducing a broadcast signal received according to a predetermined control command.

A function selection unit for selecting a 1-frame recording and playback function for an arbitrary screen, a control unit for controlling the operation of the entire apparatus according to the function selection through the function selection unit, and the image detection unit according to a control command from the control unit. A / V switching unit for switching the output composite video signal to a separate switching contact side for recording the broadcast guidance screen, and A / D for converting and outputting the composite video signal converted and inputted by this A / V switching unit to digital signal. A frame storage unit for storing one frame of digital image data output from the A / D converter according to a converter and a control signal applied from the controller, and digital image data to be read from the frame storage unit in analog form. A D / A converter for converting and outputting a signal of the signal, and a video signal for one frame output from the D / A converter and the switch from the A / V switching unit. And a frame comparator for comparing the image signals outputted in the unit of frame and outputting the first or second level determination signals according to whether or not they match each other. The controller is based on the determination signals from the frame comparator. In addition to performing recording one frame through the deck, according to the playback command through the function selection unit characterized in that the control to reproduce the output video recording.

That is, according to the present invention having the above-described configuration, when the control unit selects one frame recording function through the function selection unit, the image of one frame that is switched and output by the A / V switching unit through the deck is output. The signal is stored and set in the frame storage unit. The frame comparison unit compares the image signal read out from the frame storage unit with the image signal output from the A / V switching unit in units of frames and outputs a high or low level determination signal to the controller according to the comparison result. The control unit records the currently received video signal for a predetermined time based on this, and when a play command is input through the function selection unit, the control unit provides a broadcast order guide screen by playing and outputting the recorded video.

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

FIG. 2 is a block diagram showing a schematic configuration of a TVCR having a broadcast order guidance screen output function according to an embodiment of the present invention. The same reference numerals are used for components that perform the same functions as those shown in FIG. And the detailed description thereof will be omitted.

In FIG. 2, reference numeral 21 denotes a remote control apparatus further comprising a recording button (not shown) for recording an arbitrary screen and a playback button (not shown) for playing the guide screen. Receiving unit for receiving the infrared signal transmitted from the 21) and converts it into an electrical code signal, 23 controls the entire apparatus and based on the code signal applied from the receiving unit 22 for the broadcast order guide screen Control unit for controlling recording and playback output.

In addition, reference numeral 110 is for switching the composite video signal output from the image detector 10 to a separate switching contact (S1) side for recording the broadcast guide screen in accordance with a predetermined control command from the controller 23. A / V switching unit, 24 is an A / D converter for converting and outputting the composite video signal CVS, which is switched by the A / V switching unit 110, into a digital signal, and 25 is the control unit 23. And a frame storage unit for storing one frame of digital image data output from the A / D converter 24 at a corresponding point in time according to a control signal applied from the same.

Reference numeral 26 denotes a D / A converter for converting and outputting digital image data to be read from the frame storage unit 25 into an analog signal, and 27 denotes one frame output from the D / A converter 26. Compares the video signal of the A / V switching unit 110 and the video signal switched from the frame unit and outputs a comparison decision signal of a high or low level according to whether the video signal of the A / V switching unit 110 is matched. It is wealth.

Next, the operation of the device having the above configuration will be described.

Each broadcasting station normally executes a broadcast sequence guide of a program to be broadcast through the corresponding channel through the screen adjustment time immediately before the start of the regular broadcast, which is broadcasted on a specific background screen for screen adjustment as described above. The sequence guide subtitles are output.

When the user selects a recording button (not shown) provided in the remote control device 21 while the broadcast sequence guide screen is being received, the controller 23 switches the A / V switching unit 110. The control unit switches the composite video signal CVS applied from the image detector 10 to the switching contact S1 for recording the broadcast sequence guide screen, and the A / D converter through the switching contact S1. The video signal inputted at 24 is converted into a digital signal and stored in the frame storage section 25 as video data corresponding to one frame.

On the other hand, the storage screen for one frame set to be stored in the frame storage unit 25 is to be used as a reference screen for recording the announcement by automatically detecting it every time the announcement is received before the regular broadcast thereafter When the guide broadcast of the same background screen is received even after the TV is turned off, the frame comparison unit 27 converts the reference screen video signal and the A signal converted into an analog signal by the D / A converter 26. The broadcast video signal output from the / V switching unit 110 is compared in units of frames, and if the same, for example, a high level determination signal is output to the control unit 23 side.

The controller 23 drives the deck 19 through the deck driver 18 when the high level determination signal is input from the frame comparator 27, thereby recording the currently received broadcast sequence guide screen. The recording will be made over the predetermined time (eg, about 5 minutes) at the beginning of.

If the user selects a play button (not shown) provided in the remote control apparatus 21 in the state in which the broadcast order guide screen is recorded by the above process, the controller 23 controls the A / V switching unit. By controlling the drive 110 for a predetermined time and switching to the reproduction output mode, the deck 19 drives and controls the deck 19 to reproduce and output the recorded broadcast guide screen. On the screen, the program guide to be broadcast that day is reproduced and output through the corresponding channel.

Meanwhile, the above-described guide screen recording operation is automatically updated and recorded every day unless the background screen at the time of the guide screen broadcast is changed, so that the user can use the broadcast guide screen of the corresponding channel every day without any extra effort.

That is, according to the embodiment, when the broadcast order guide screen is received, the corresponding screen is automatically recorded, and when the user needs to play the broadcast order guide screen at any time to check the broadcast order of the corresponding channel. A TVCR can be realized.

On the other hand, the present invention is not limited to the above embodiments and can be modified in various ways without departing from the technical gist of the present invention.

As described above, according to the present invention, when the broadcast order guide screen is received, the corresponding screen is automatically recorded, and the user can check the broadcast order of the corresponding channel by reproducing the channel at any time as necessary, so that the broadcast information is relatively accurate. You can check and see easily.

Claims (1)

A video detector for separately detecting a composite video signal from a broadcast signal received by an antenna, an audio detector for detecting only an audio signal, and a deck for recording and reproducing a broadcast signal received according to a predetermined control command. In televideo, A function selector for selecting a 1-frame recording and playback function for an arbitrary screen; Control unit for controlling the operation of the overall device in accordance with the function selection through the function selection unit, An A / V switching unit for switching the composite video signal output from the video detector to a separate switching contact side for recording a broadcast guide screen according to a control command from the controller; An A / D converter which converts and outputs a composite video signal which is switched by the A / V switching unit to a digital signal, A frame storage unit for storing one frame of digital image data output from the A / D converter according to a control signal applied from the controller; A D / A converter for converting and outputting digital video data read out from the frame storage unit into an analog signal; The video signal of one frame output from the D / A converter and the video signal switched and output from the A / V switching unit are compared in units of frames, and the determination signal of the first or second level is output according to the match. It is configured to include a frame comparison unit, The control unit performs one frame recording through the deck on the basis of the determination signal from the frame comparator, and controls the recorded video to be reproduced and output according to the playback command through the function selection unit. Televideo with on-screen output.