KR100193090B1 - Digital image retrieval device and its method when watching TVCR - Google Patents

Abstract

The present invention relates to a digital image retrieval apparatus and a method thereof for watching a TVCR, and there is no separate device that can store an image in a memory during the current viewing by a viewer's selection, so that the viewer rewinds the image for viewing. In order to solve the drawback of not being able to accurately search the whole video when performing the function, in order to search for the video played back on the TVCR deck, the CVBS played by the playback means (deck) is controlled by the signal controlled by the control means (microcom). Image retrieval means (image retrieval) for storing data in memory as a digital signal and inputting the stored date time sequence to retrieve the image signal, and outputting the data according to the key input selected by the viewer and inputting the image signal to the image processing means (image processor). In the deck by providing a search device (including a search unit) and a search method accordingly When the rewind function is executed by storing the image being played and being watched in the memory, the viewer can search the entire image exactly as desired.

Description

Digital image retrieval device and its method when watching TVCR

The present invention relates to a TVCR that integrates a television receiver (hereinafter referred to as a TV) and a video cassette recorder (hereinafter referred to as a VCR). More particularly, the present invention relates to a rewind function by storing an image in a memory during current viewing by a viewer's selection. The present invention relates to a digital image retrieval apparatus and method for watching TVCR for retrieving an entire image accurately by performing the following steps.

In general, the TVCR is controlled by the microcomputer 200 and the microcomputer 200 which process the overall operation of the TV in association with the system controller 700 by the manipulation of the key input unit 220 as shown in FIG. 1. A tuner 100 for receiving a broadcast signal of a channel selected by a preset voltage from an antenna ANT, an image processor 300 for processing an image signal of a broadcast signal received by the tuner 100, and the image processor. An image amplifying unit 320 for amplifying the image signal output from the 300 and a vertical synchronizing signal of the image signal displayed on the screen of the CRT 400 by the vertical / horizontal synchronizing signal processed by the image processor 300; A vertical / horizontal synchronization processor 340 for deflecting a horizontal synchronization signal, a CRT 400 for receiving an image signal output from the image amplifier 320 and displaying it on a screen, and a VCR in connection with the microcomputer 200. System controls overall A deck 600 connected to the image processor 300 by a controller 500 and a control signal of the system controller 500 to record a video / audio signal on a recording medium or to reproduce a video / audio signal from a recording medium. Equipped.

Here, the configuration of the voice processor, the voice amplifier, and the speaker that process the voice by the control signal of the microcomputer 200 will be omitted.

That is, in the TVCR configured as described above, when a viewer operates the key input unit 220 and selects a broadcasting channel of a TV to be watched in a state where power is applied, the TVCR corresponding to the TVCR recognizes the selected tuning voltage. It generates and applies to the tuner 100.

Therefore, the tuner 100 receives the broadcast signal of the broadcast channel selected by the tuning voltage generated by the microcomputer 200 from the free space through the antenna ANT and broadcasts it to the image processor 300 and the audio processor (not shown). Input the signal.

Thus, the image processor 300 inputs the processed image signal to the image amplifier 320 by processing only the image signal from the broadcast signal input from the tuner 100 by the control signal of the microcomputer 200.

That is, the image amplification unit 320 amplifies the video signal to a level that can be displayed on the screen of the CRT 400 and supplies the image signal to the CRT 400 so that the video signal transmitted from the broadcasting station to the free space is displayed on the screen. Make sure you can watch the signal.

At this time, the vertical / horizontal synchronization processor 340 deflects the image signal displayed on the screen of the CRT 400 in the vertical direction and the horizontal direction based on the vertical synchronization signal and the horizontal synchronization signal processed by the image processor 300.

In addition, when the viewer operates the key input unit 220 to select the VCR mode to watch the VCR with the TVCR, the viewer receives the deck from the recording medium through the deck 600 by a control signal processed by the system controller 500 associated with the microcomputer 200. The video signal reproduced by reproducing the video / audio signal is processed by the video processor 300.

Accordingly, the image processor 300 processes the image signal reproduced from the deck 600 by the control signal of the microcomputer 200, amplifies the image signal to a predetermined level through the image amplifier 320, and reproduces the image signal on the screen of the CRT 400. Display the displayed video signal.

The TVCR does not have a separate device capable of storing the image in the memory during the current viewing by the viewer's selection, so that the entire image cannot be searched correctly when the rewind function is performed in order to replay the image that the viewer did not watch. Defects have occurred.

The present invention has been made to solve the above-mentioned shortcomings, and an object thereof is to provide an apparatus and method for accurately retrieving the entire image by performing a rewind function by storing an image currently being viewed in a memory. .

The present invention for achieving the object as described above, in the retrieval of the image to be reproduced on the TVCR deck, by receiving the CVBS reproduced by the reproducing means (deck) by a signal controlled by the control means (microcom) to receive a digital signal And a video retrieval unit (image retrieval unit) inputting the stored date time sequence number and the like to retrieve the image signal, and outputting the data according to a key input selected by the viewer and inputting the image signal to the image processing unit (image processor). It is a main feature to provide a search apparatus and a search method accordingly.

1 is a block diagram schematically showing a configuration of a general TVCR.

Figure 2 is a block diagram showing a TVCR including a digital image retrieval apparatus according to the present invention.

3 is a flowchart illustrating a digital image retrieval method in a TVCR for solving the present invention.

Explanation of symbols on the main parts of the drawings

100: tuner 200: micom

220: key input unit 300: video processor

320: Image amplification unit 340: Vertical / horizontal synchronization processing unit

400: CRT (Cathode-Ray Tube) 500: System Controller

600: Video Deck 700: Video Search Unit

710: command receiving control unit 720: selection unit

730: CVBS receiver 740: A / D converter

750: memory portion 760: counter portion

770: output unit 780: D / A conversion unit

Hereinafter, the configuration according to an embodiment of the present invention will be described in detail with the accompanying drawings.

2 is a block diagram showing a TVCR including a digital image retrieval apparatus according to the present invention.

The microcomputer 200 is integrated with the system controller 700 by operating the key input unit 220 to process the overall operation of the TV, and the broadcast signal of the channel selected by the channel voltage controlled by the microcomputer 200 is antenna. A tuner 100 receiving from the ANT, an image processor 300 for processing an image signal of a broadcast signal received by the tuner 100, and amplifying the image signal output from the image processor 300; An image amplifier 320 and a vertical / horizontal synchronization processor configured to deflect the vertical and horizontal synchronization signals of the image signal displayed on the screen of the CRT 400 by the vertical / horizontal synchronization signals processed by the image processor 300. 340, a CRT 400 that receives an image signal output from the image amplification unit 320, and displays the image signal on a screen; and a system controller 500 that controls the VCR overall in connection with the microcomputer 200. , The system controller ( In the TVCR having a deck 600 that is connected to the image processor 300 by the control signal of 500 to record the video / audio signal on the recording medium or to reproduce the video / audio signal from the recording medium, the microcomputer 200 Key input selected by the viewer by receiving the composite video signal (CVBS) reproduced by the deck 600 by the signal controlled by the control panel), storing it as a digital signal in the memory, and inputting the stored date time sequence to retrieve the video signal. The image retrieval unit 700 for outputting data and inputting the data to the image processor 300 is configured to be further included.

The image retrieval unit 700 converts the composite image signal CVBS reproduced by the deck 600 into an analog signal, and the CVBS receiving unit 730 and the composite image signal CVBS received as an analog signal into a digital signal. A / D conversion unit 740, a memory unit 750 for storing the composite video signal (CVBS) converted into a digital signal, and the date, time, sequence, etc. of the video signal stored in the memory unit 750 Selector for receiving the control signal of the microcomputer 200 according to the key selection of the key input unit 220 through the counter unit 760 and the command receiving control unit 710 to select the data stored in the memory unit 750 720, an output unit 770 for outputting data stored in the memory unit 750 as a digital signal by selection of the selection unit 720, and an image processor for restoring data output as a digital signal to an analog signal. A D / A converter 780 for inputting to 300 is provided.

3 is a flowchart illustrating a digital image search method in a TVCR for solving the present invention.

Checking whether the TVCR power is on (S301), and if the TVCR power is turned on, watching the TVCR (TV or VCR) (S302), and checking whether the image search function is turned on while watching the TVCR. (S303) and if there is no key input and the image search function is turned off, step S302 is performed. If the image search function is turned on due to key input, the composite video signal CVBS is received as an analog signal. Step S304, converting the composite video signal received as an analog signal into a digital signal (S305), storing the composite video signal (data) converted into a digital signal (S306), and counting the stored data (S307), the viewer selecting the stored data (S308), outputting the selected data as a digital signal (S309), and outputting the data as a digital signal. Step to restore to analog signal (S310), the viewer watching the selected data (S311), checking whether the image search function is off (S312), and if the checked image search function is on, returns to step S304. If the image search function is off, the image search function is terminated (S313).

Looking at the working state of the present invention made as described above are as follows.

The process of selecting and describing a broadcast channel of a TV to be watched by a user by operating the key input unit 220 while the power is applied is already described in the conventional description, and thus, the description thereof is omitted, and the VCR mode in the TVCR presented in the present invention is omitted. The case where the selection is made will be described as an example.

When the viewer selects the VCR mode by operating the key input unit 220 in the state in which the TVCR power is turned on (S301), the deck 600 is controlled by a control signal processed by the system controller 500 associated with the microcomputer 200. The video signal reproduced by reproducing the video / audio signal from the recording medium is processed by the video processor 300 through the video signal.

Accordingly, the image processor 300 processes the image signal reproduced from the deck 600 by the control signal of the microcomputer 200, amplifies the image signal to a predetermined level through the image amplifier 320, and reproduces the image signal on the screen of the CRT 400. The displayed video signal is displayed so that the viewer can watch the video played back on the VCR deck 600 by the TVCR (S302).

While watching the VCR through the TVCR, the microcomputer 200 associated with the system controller 500 confirms whether the image search function is on (S303).

If there is no key input for selecting the image search mode from the key input unit 220, the microcomputer 200 continuously processes the image played on the deck 600 by the image processor 300 to process the CRT 400. Output to the screen and give to the viewer.

On the other hand, if there is a key input for selecting the image search function in the key input unit 220, the microcomputer 200 outputs a control signal to the CVBS receiving unit 730 through the command receiving control unit 710 of the image searching unit 700 The CVBS receiver 730 receives the composite video signal CVBS reproduced by the deck 600 as an analog signal (S304).

The composite video signal CVBS received as an analog signal by the CVBS receiver 730 is converted into a digital signal through the A / D converter 740 (S305), and the composite video signal CVBS is stored in the memory unit 750. That is, the video signals reproduced on the deck are sequentially stored (S306).

At this time, the counter unit 760 is regenerated by counting the storage date, time, and sequence of the composite video signal CVBS, which is reproduced in the deck 600 and stored in the memory unit 750 as a digital signal (S307). Makes it easy to select specific parts.

When the above processes are completed and the viewer fails to check the video signal reproduced on the deck 600 on the screen of the CRT 400 or the user wants to watch the important part again, the corresponding key of the key input unit 220 ( For example, when pressing the 4th of October, at 14:00, the microcomputer 200 inputs data input by the viewer to the selection unit 720 through the command receiving control unit 710 and stores the data stored in the memory unit 750 (eg, 10). Select from the video signal played back at 14:00 on the 4th of the month (S308) and output the digital signal through the output unit 770 (S309) to restore the original analog signal by the D / A converter 780. In operation S310, the image processor 300 may input an image to the image processor 300.

Therefore, the image processor 300 processes the lottery image signal, amplifies it to a predetermined level through the image amplifier 320, and outputs the image to the screen of the CRT 400 so that the viewer can watch the image of the data selected by the viewer (S311). .

When the video selected by the viewer is output on the screen of the CRT 400, the microcomputer 200 checks whether the image search function is off (S312).

If there is no separate key input on the result of the confirmed key input unit 220, if the image search function is still on, the process returns to step S304 to repeat the process from there, and the image input function is performed by the key input unit 220. If there is a key input to turn off, the microcomputer 200 causes the image processor 300 to directly process the composite video signal CVBS reproduced by the deck 600 to terminate the image search function selected by the viewer (S313).

As described above, the present invention has an effect that the viewer can search the entire image exactly as desired when performing the rewind function by storing the image currently being watched in the deck in the memory.

Although the present invention has been described with respect to a digital image retrieval apparatus and method for viewing a TVCR as described in the claims, the present invention is not limited to this, and those skilled in the art will be able to various applications and modifications.

Claims (3)

The microcomputer 200, the tuner 100, the image processor 300, the image amplifier 320, the vertical / horizontal synchronization processor 340, a system controller 500 which is connected to the microcomputer 200 to control the VCR as a whole, and a deck 600 which records a video / audio signal on a recording medium or reproduces a video / audio signal from a recording medium. In the provided TVCR, a composite video signal (CVBS) reproduced by the deck 600 by a signal controlled by the microcomputer 200 is received and stored in a memory as a digital signal, and then stored for retrieving the video signal. And a video retrieval unit (700) for outputting data according to a key input selected by the viewer by inputting a sequence number and inputting the data to the image processor (300). The image retrieval unit 700 of claim 1, wherein the image retrieval unit 700 receives a CVBS reproduced by the deck 600 as an analog signal, and an A / D for converting the CVBS received as an analog signal into a digital signal. A conversion unit 740, a memory unit 750 for storing the CVBS converted into a digital signal, a counter unit 760 for setting the date, time, order, etc. of the video signal stored in the memory unit 750; The selection unit 720 receives the control signal of the microcomputer 200 according to the key selection of the key input unit 220 through the command receiving control unit 710 and selects the data stored in the memory unit 750, and the selection unit ( An output unit 770 for outputting data stored in the memory unit 750 as a digital signal by selecting 720, and a D / A for restoring the data output as a digital signal to an image processor 300. Digital image search site for watching TVCR characterized by having a conversion unit 780 . In the video retrieval method, if the video retrieval function is turned on while watching a TVCR, A / D conversion of CVBS replayed on the deck is stored in the memory, and the data stored in the memory in the order of date, time and sequence. Digital video retrieval during TVCR viewing, which consists of a process of counting the number of times, the viewer arbitrarily selecting the stored CVBS and outputting it as a digital signal, and restoring the data output from the digital signal to an analog signal. Way.