KR100212996B1 - Camcorder with digital camera - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs

The present invention relates to a camcorder for printing a photographed video signal to print or recording a photographed video signal on a recording medium to reproduce a moving picture signal.

I. The technical problem to be solved by the invention

In order to solve the problem that a digital camera must be provided for printing still images and a separate camcorder must be provided for capturing and playing back moving images, a camera function and a camcorder function are performed with one camcorder.

All. Summary of Solution of the Invention

The video signal captured by the camera can be recorded on a memory card by processing a still image, and the video signal recorded on the memory card can be displayed on the display or printed using a printer. The video signal recorded on the memory card can also be recorded on a personal computer. The video signal recorded by the camera is recorded on a video tape mounted on the deck, and the video signal recorded on the video tape is reproduced on the screen.

la. Important uses of the invention

Applies to the camcorder.

Description

Digital Camera Camcorders

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital camera camcorder, and more particularly, to a camera combined camcorder for performing a camera and a camcorder function with one device.

In general, a digital camera photographs a subject, stores a still image signal in a memory, and prints the image. Then, the camcorder photographs a subject and records a moving image on a recording medium. However, conventionally, a digital camera must be provided for printing still images, and a camcorder must be separately provided for capturing and playing back moving images. Therefore, since the digital camera and the camcorder must be provided, the price is expensive, and there is a problem that it is bulky and portable.

Accordingly, an object of the present invention is to provide a digital camera combined camcorder capable of printing and printing still images by adding a camera function.

Another object of the present invention is to provide a digital camera combined camcorder that can be reduced in volume when carrying out miniaturization by performing a camera and a camcorder function in one device.

Another object of the present invention is to provide a digital camera combined camcorder which can be made compact by attaching and detaching a deck and a recording / playback mechanism.

According to the present invention for achieving the above object, a video signal photographed from a camera is subjected to still image processing and recorded on a memory card, and the video signal recorded on the memory card is transferred to a personal computer for storage, and displayed on a display unit or a printer. After printing, the video signal captured by the camera is recorded on the video tape mounted on the deck, and then the video signal recorded on the video tape is reproduced on the screen.

1 is a block diagram of a digital camera and camcorder according to an embodiment of the present invention

2 is a detailed block diagram of the shuffle and data compression / extension unit 12 of FIG. 1 according to an exemplary embodiment of the present invention.

3 is a detailed block diagram of the memory card interface 14 and the personal computer interface 14 of FIG. 1 according to an exemplary embodiment of the present invention.

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

1 is a block diagram of a digital camera and camcorder according to an embodiment of the present invention.

The camera unit 10 photographs a subject and outputs image data to the shuffle and data compression / extension unit 12. The shuffle and data compression / extension unit 12 quantizes the image data output from the camera unit 10 by DCT processing, compresses and outputs the data through variable-length encoding, etc., and de-quantizes the reproduced image data after variable-length decoding. And IDCT processing to extend the output. The display unit 22 displays the image data decompressed and reconstructed from the shuffle and data compression / extension unit 12. Memory card 16 stores image data. The memory card interface and the personal computer interface 14 interface the incoming data to be stored in the memory card 16, and interface the video signal output from the shuffle and data compression / extension 12 to be transmitted to the personal computer. In this case, the stored data may be in a compressed form or an expanded form. The ECC and modulation / demodulation unit 18 receives the reproduced image data, corrects an error occurring on the video tape, demodulates it, and outputs it by modulating the compressed data from the shuffle and data compression / extension unit 12. The deck unit 20 records data modulated from the ECC and the demodulation unit 18 on a video tape, reproduces the image data recorded on the video tape, and applies the data to the ECC and the demodulation unit 18.

2 is a detailed block diagram of the shuffle and data compression / extension unit 12 of FIG. 1 according to an exemplary embodiment of the present invention.

The shuffling unit 24 shuffles and outputs image data input from the camera unit 10. The memory 23 stores one frame of data so that image data can be shuffled. The DCT / IDCT unit 26 converts the shuffled data on the time axis into data on the space axis. The quantization and encoding unit 28 quantizes data converted from the DCT / IDCT unit 26 into data on a spatial axis and encodes the data through a run length code (RLC) and a variable length code (VLC). The data format unit 30 converts the data format so that the encoded data can be recorded on the video tape.

3 is a detailed block diagram of the memory card interface 14 and the personal computer interface 14 of FIG. 1 according to an exemplary embodiment of the present invention.

The timing controller 32 receives the data and the control signal output from the shuffling unit 24, sends the data to the memory card 16, and outputs a timing control signal for recording and reading. The recording controller 34 generates a control signal for recording data applied to the memory card 16 by the recording timing control signal output from the timing controller 32. The read control unit 36 generates a control signal for reading data recorded in the memory card 16 by a read timing control signal output from the timing control unit 32, and receives an image transmission start signal and a transmission speed signal from a personal computer. Outputs the read timing control signal. The parallel-serial conversion and data rate adjusting unit 38 converts the data read out from the memory card 16 or the parallel data output from the shuffling unit 24 into serial data and adjusts the data rate according to the transmission speed.

1 and 3 will be described in detail the operation of the preferred embodiment of the present invention.

The camera unit 10 photographs a subject and outputs image data to the shuffle and data compression / extension unit 12. The shuffle and data compression / extension unit 12 performs DCT processing on the image data output from the camera unit 10 to compress and output the data through quantization and variable encoding, and then performs the variable length decoding and inverse quantization process on the reproduced image data. IDCT processing to expand and output, which will be described in detail with reference to Figure 2, the shuffling unit 24 is a SD digital VCR to the image data of one frame in the memory 23 to increase the extrusion efficiency of the image data input from the camera unit 10 Record in shuffling form specified in the standard and output to DCT / IDCT section 26. The DCT / IDCT unit 26 converts the shuffled data on the time axis into data on the space axis and outputs the data to the quantization and encoding unit 28. The quantization and encoding unit 28 quantizes the data converted from the DCT / IDCT unit 26 into data on the spatial axis, encodes the data through the run length code (RLC) and variable length code (VLC), and outputs the encoded data to the data format unit 30. The data format unit 30 converts the data format so that the encoded data can be recorded on the video tape.

Uncompressed data transmission is also possible. The output of the shuffling unit 24 is input to the memory card interface and the personal computer interface 14 of FIG.

Data compressed by DCT from DCT / IDCT 26 is applied to the memory card interface and the personal computer interface 14, and the memory card interface and the personal computer interface 14 record the image data of the compressed one frame onto the memory card 16 or the personal computer. Transfer it to your computer. When the video data recorded on the memory card 16 is to be played back, the data read out from the memory card 16 is read, and IDCT processing is performed to restore the compressed data. The recovered data is deshuffled by the shuffling unit 24 to form an original signal and displayed on the display unit 22.

In addition, when the data recorded on the memory card 16 is to be transferred to the personal computer, the data is inputted to the memory card interface and the personal computer interface 14. The input data is converted according to the data type of the personal computer to be transferred to the personal computer. Is sent to.

On the other hand, when the current display 돠 wants to delete the screen from the memory card 16, if the address of the screen displayed on the display unit 22 is recognized by the memory card interface and the personal computer 14, and then overwrites this address when writing the next new screen, Screen is deleted. While viewing the photographed picture through the display unit 22, only the desired picture can be edited and printed through a personal computer or a printer. When printing the printer by telephone, only the reproduced data is possible, and the data is modified in the memory card interface and the personal computer interface 14 according to the printer type. The operation of the memory card interface and the personal computer interface 14 will be described in detail with reference to FIG. 3. The data and control signals output from the shuffling unit 24 of FIG. 2 are applied to the timing controller 32. The timing controller 32 sends data to the memory card 16 to write the input data to the memory card 16, and transmits a control signal to the recording controller 34. The timing controller 32 receives the data and the control signal output from the shuffling unit 24, sends the data to the memory card 16, and outputs a timing control signal for recording and reading. The recording controller 34 records data applied to the memory card 16 by the recording timing control signal output from the timing controller 32. The read control unit 36 reads data recorded in the memory card 16 by the read timing control signal output from the timing control unit 32, and outputs a read timing control signal by receiving an image transmission start signal and a transmission speed signal from a personal computer. do. At this time, when the input data or the data read out from the memory card 16 is to be transferred to the personal computer, the data and the control signal are applied from the timing controller 32 to the parallel-to-serial conversion and data rate controller. Accordingly, the parallel-serial conversion and data rate adjusting unit 38 converts the data read out from the memory card 16 or the parallel data output from the shuffling unit 24 into serial data and adjusts the data rate according to the transmission speed.

In addition, in order to record the video signal photographed from the camera unit 10 with the camcorder, the compressed data from the shuffle and data compression / extension unit 12 is applied to the ECC and the demodulation unit 18. At this time, the ECC and the demodulation unit 18 modulate the compressed data from the shuffle and data compression / extension unit 12 and output the modulated data to the deck unit 20. The deck unit 20 records the data modulated from the ECC and the demodulation unit 18 on a video tape. In order to reproduce the moving picture signal recorded by the video tape of the deck unit 20, the deck unit 20 is driven to reproduce the video signal recorded on the video tape and apply it to the ECC and the demodulation unit 18. The ECC and modulation / demodulation unit 18 receives the reproduced image data, corrects an error generated on the video tape, demodulates it, and applies it to the shuffle and data compression / extension unit 12 to reproduce the moving image signal on the screen through the display unit 22.

As described above, according to the present invention, a video signal photographed from a camera is subjected to still image processing and recorded on a memory card, and the video signal recorded on the memory card can be stored in a personal computer, displayed on a display, or printed through a printer. In addition, since the video signal recorded from the camera is recorded on the video tape, the video signal recorded on the video tape is played back and displayed on the screen, so that both the digital camera and the camcorder can be used in combination, thereby reducing the cost. Implementing an added camcorder has the advantage of reducing the volume when carrying. And if you use only a digital camera, the deck can be attached and detached, so it is easy to carry the removable deck.

Claims (4)

In a digital camera camcorder, A camera unit for photographing a subject and outputting image data to the shuffle and data compression / extension unit 12; A shuffle and data compression / extension unit for compressing and outputting the image data output from the camera unit by DCT processing, and expanding and outputting the reproduced image data by IDCT processing; A display unit for displaying image data extended and reconstructed from the shuffle and data compression / extension unit; Memory card for storing video data, A memory card interface and a personal computer interface unit for interfacing the input data to be stored in the memory card 16 and for interfacing the image signal output from the shuffle and data compression / extension unit to be transmitted to the personal computer; An ECC and a demodulation unit for correcting an error generated on a video tape after receiving playback image data, demodulating and outputting the data, and modulating and outputting the compressed data from the shuffle and data compression / extension unit; And a deck unit for recording data modulated from the ECC and the demodulation unit on a video tape, and reproducing and applying the image data recorded on the video tape to the ECC and the demodulation unit. The method of claim 1, wherein the shuffle and data compression / extension unit, A shuffling unit for shuffling and outputting image data input from the camera unit; A memory for storing one frame of data for shuffling video data; A DCT / IDCT unit for converting the shuffled time axis data into space axis data; A quantization and encoding unit for quantizing data converted from the DCT / IDCT unit into data on a spatial axis and encoding the same through RLC and VLC; And a data format unit for converting a data format so that the encoded data can be recorded on a video tape. The memory card interface and the personal computer interface unit of claim 2, A timing controller which receives data and a control signal output from the shuffling unit, sends data to a memory card, and outputs a timing control signal for recording and reading; A recording control unit for recording data applied to the memory card by a recording timing control signal output from the timing control unit; A read control section for reading data recorded in the memory card by a read timing control signal output from the timing control section; And a parallel conversion and data rate adjusting unit for converting data read out from the memory card or parallel data output from the shuffling unit into serial data and adjusting a data rate according to a transmission speed. In the digital camera combined camcorder capable of putting on and taking off the deck part, The video signal captured by the camera may be processed into a still image and recorded on a memory card, and the video signal recorded on the memory card may be displayed on a display or printed through a printer. And a video camera recorded on the video tape, and reproduces the video signal recorded on the video tape and reproduces it on the screen.

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