JP2005198010A - Image recording device and image recording method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To report whether recording is possible or not when an image is desired to be recorded in a recording medium. <P>SOLUTION: The device detects and decodes a received television digital broadcast signal (compressed coding signal by a system such as an MPEG) by an antenna 1, outputs the image signal to a selector 3, and outputs the voice signal to a voice output part 7. Here, if there is a copy protect information, a protect information extraction part 2a extracts it, and outputs to a central processor 12. A user simultaneously confirms a moving video and a still image by the two splitting display, and furthermore, if there is a scene to be considered as the best shot, it is possible to update the still image. At this time, only when it is not a copy protect image, the device indicates "recording enable", and notifies to the user, since if the still image is a copy protect image, it is not possible to be recorded. Finally, it is possible to record the still image considered to be the best by a user in a card type recording medium 9. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an image recording apparatus and an image recording method for recording a moving image, a captured still image, and the like on a recording medium such as an HD, a DVD, or a memory card. In particular, the present invention notifies a user whether an image can be recorded on the recording medium. It has a function.

  In recent years, digital contents such as TV programs have been provided by terrestrial digital broadcasting and satellite digital broadcasting. Such digital contents are generally encoded and transmitted using a compression encoding method such as MPEG. Thus, the sent digital content can be decrypted to provide a high quality comparable to the original video. Since it is not preferable to copy such high-quality content as it is from the viewpoint of copyright protection, a technique for preventing unauthorized copying has been developed.

Now, for example, in television broadcasting, there is a demand for recording still images such as recipe contents in a cooking program, a destination for a viewer present, or a shooting scene of a soccer player. Therefore, an image recording apparatus capable of recording the still image as well as the moving image on a recording medium such as a PC card, HD, or DVD is provided (Patent Document 1). In such an image recording apparatus, if the above-mentioned copy protection is added to the broadcast content, the user cannot record on the recording medium.
JP-A-9-224213

  As described above, when it is practically impossible to record an image having a copy protection function, the image recording apparatus disclosed in Japanese Patent Application Laid-Open No. 2005-228867 does not provide any notification that the image has a copy protection function. Therefore, when a user who does not know such a background tries to capture the still image of the above image, he / she may be dissatisfied that the operation is not performed by the user, and in some cases, it is recognized that the TV is broken. It may also be possible to give.

On the other hand, if an image with copy protection is always notified to that effect, it will be notified even if the user is not willing to record on the recording medium, which may cause discomfort. It can be.
Furthermore, card-type recording media and DVDs may not be able to be recorded because they are not attached to the main body of the apparatus, and it is necessary to notify them separately from the copy protection case.

  In view of such circumstances, an object of the present invention is to provide an image recording apparatus and an image recording method capable of notifying whether or not recording is possible when an image is to be recorded on a recording medium.

  The present invention provides an image recording apparatus for recording image data on a recording medium, an information extracting means for extracting copy protection information from the image data, a recording means for recording on a recording medium, a display means for displaying image data, Display notifying means for displaying whether or not recording on a recording medium is possible based on the extraction result of the information extracting means is provided.

  Further, the present invention provides an image extracting apparatus for recording image data on a recording medium, an information extracting means for extracting copy protection information from the image data, a detecting means for detecting whether the recording medium is in a recordable state, Recording means for recording on a recording medium, display means for displaying image data, display notifying means for displaying whether recording is possible on the recording medium based on the extraction result of the information extracting means and the detection result of the detecting means It is characterized by comprising.

  Here, the display notifying means displays that fact only when recording on a recording medium is possible.

  In addition, the display notifying means displays a process that indicates that the recording medium or image data can be recorded when the recording medium or the image data is recordable, and a process that does not display that the recording medium or image data can be recorded when the recording medium or the image data is not in a recordable state If the recording medium or the image data is not in a recordable state when an operation for recording the image data on the recording medium is performed, a message indicating that recording is impossible is displayed. Features.

  According to another aspect of the present invention, there is provided an image recording method for recording image data on a recording medium by a recording means. And a notification step of displaying on the display means and informing whether or not it is possible.

  The present invention also relates to an image recording method for recording image data on a recording medium by a recording means, an extraction step for extracting copy protection information from the image data, and a detection step for detecting whether the recording medium is in a recordable state. And a notifying step for displaying on the display means and informing whether or not recording on the recording medium is possible based on the extraction result of the copy protection information and the detection result.

  Here, the notification step displays that only when recording on a recording medium is possible.

  The notification step includes a process for displaying that the recording medium or the image data can be recorded when the recording medium or the image data is recordable, and a process for not displaying the recordable when the recording medium or the image data is not in a recordable state. If the recording medium or the image data is not in a recordable state when an operation for recording the image data on the recording medium is performed, a message indicating that recording is impossible is displayed. Features.

  According to the present invention, since the image recordable state is notified according to the copy protection and the recording medium preparation state, the user can accurately grasp the state of the apparatus and cope with it. Further, if the fact is displayed only when recording is possible, the user will not feel uncomfortable more than necessary as compared with the case where recording is not possible. Further, when a message indicating that recording cannot be performed only when the recording medium is not mounted is displayed, the user can understand the necessity of mounting the recording medium and can cope with it.

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

  FIG. 1 is a block diagram showing a configuration of a liquid crystal television receiver which is an embodiment of an image recording apparatus according to the present invention. As shown in FIG. 1, the present embodiment includes an antenna 1 that receives a television broadcast signal, and a receiver 2 that detects an image of the television broadcast signal received by the antenna 1 and outputs an image signal and an audio signal. A selection unit 3 for selecting and switching input / output image signals, a still image capturing unit 4 for capturing still images from moving image signals, and converting the input image signals into R, G, and B signals and outputting them An image output unit 5 for displaying, a liquid crystal display unit 6 for displaying based on the RGB signals, an audio output 7 for processing so that the input audio signal can be output as audio, and an audio output based on the processed audio signal A speaker 8 that performs communication with the card-type recording medium 9 such as a memory card, a slot 10 in which the card-type recording medium 9 is inserted, and a card-type recording medium 9 that is inserted in the slot 10. And de control unit 11, a central control unit 12 for controlling each section, a configuration consisting of the operation unit 13 for a user to input various instructions to the central control unit 9.

Here, the receiving unit 2 includes a protect information extracting unit 2a that extracts copy protect information.
The selection unit 3 has a function of selecting an image on the card recording medium 9 or an image on the receiving unit 2 as an image signal to be displayed on the display unit 6 or to be recorded on the card recording medium 9. Some are implemented as integrated circuit ICs.

  That is, at least for the image on the card recording medium 9, not only the line unilaterally output to the selection unit 3, but also the line for functioning the input line for writing the image of the reception unit 2 exists. In addition to the image data from the receiving unit 2, the function of the selecting unit 3 can also select image data recorded on the card at the same time. The image data received from the card recording medium 9 is simultaneously selected and displayed on the screen in two screens.

  The still image capturing unit 4 holds the captured still image in a frame memory (not shown). The image output unit 5 includes an entire display processing unit 5a that displays the entire display screen of the display unit 6, a two-divided display processing unit 5b that displays the display screen by dividing the display screen, and an OSD for displaying notifications to the user on the screen. A video memory 5c for storing patterns is provided. The display unit 6 is not limited to the liquid crystal in the present embodiment, and may be a CRT or a plasma display.

  The operation unit 9 is a remote controller (hereinafter referred to as a remote controller), and transmits an input operation selected by the user to the liquid crystal television by infrared rays. FIG. 2 shows an example of the appearance of the operation unit 9. As operation keys, a power key 21, a numeric key 22, a channel sequential selection key 23, a volume key 24, a return key 25 for returning the operation, and an end key for ending the operation. 26, a determination key 27 for determining an operation, a cursor key 28 for moving the cursor in the horizontal and vertical directions of the display screen, a recording / playback key group 29 for performing a reproduction recording operation, and the like. The recording / playback key group 29 includes a still image key 30 for capturing a still image and a recording key 31 for recording on a recording medium.

  Next, the structure around the card type recording medium 9 will be described.

  As shown in FIG. 3, the slot unit 10 has a card connector 41 that houses the inserted card type recording medium 9 and a card type recording medium 9 that is inserted into the card connector 41. Push rod 42, discharge preparation state detection sensor 43 that detects that the push rod 42 has shifted to the discharge preparation state, and a signal that outputs a state signal in response to outputs from the card connector 41 and the discharge preparation state detection sensor 43. And a detection unit 44.

  The push rod 42 is a type that ejects the card-type recording medium 9 by a two-stage operation, and is, for example, a bent type push rod. That is, when the card-type recording medium 9 is inserted into the card connector 41, the card-type recording medium being connected due to an erroneous operation of the protruding push rod 42 is bent as shown in FIG. 9 is prevented from being discharged unexpectedly. A specific embodiment of the push rod 42 that realizes such a discharge mechanism includes, for example, a commercially available push switch having a locked state and a switch member similar thereto.

  When the card-type recording medium 9 is ejected from the card connector 41, the bent portion of the push rod 42 is rotated in the direction indicated by the arrow in FIG. 3A (first operation), and FIG. As shown in FIG. 3, in a state where the push rod 42 is linear, the push rod 42 is pushed in the direction indicated by the arrow in FIG. 3B (second operation), thereby causing the eject lever (not shown) to act to operate the card. The mold recording medium 9 is discharged.

  The discharge preparation state detection sensor 43 is, for example, a reflection-type optical sensor, and is disposed at a position where a bent portion of the push rod 42 is detected as shown in FIG. Then, it is detected that the first operation of rotating the bent portion of the push rod 42 is performed and the state is shifted to the discharge preparation state, and a discharge preparation state detection signal is output to the signal detection unit 44.

  When the discharge preparation state detection signal from the discharge preparation state detection sensor 43 is input, the signal detection unit 44 performs a card detection process for detecting the connection state between the card connector 41 and the card type recording medium 9, and When the card-type recording medium 9 is inserted into the connector 41, a discharge preparation state detection signal is output to the card control unit 11. Further, the signal detection unit 44 detects the discharge of the card type recording medium 9 from the card connector 41 by performing a card detection process for detecting the connection state between the card connector 41 and the card type recording medium 9. When the ejection of the card type recording medium 9 from the card connector 41 is detected, an ejection confirmation signal is output to the card control unit 11.

  The card control unit 11 reads image data composed of an image signal and an audio signal stored in the card type recording medium 9 and outputs the image signal to the image output unit 5 and the audio signal to the audio output unit 7 respectively. Processing and recording processing for writing the image signal and the audio signal output from the receiving unit 2 as image data in the card type recording medium 9 are performed.

  In addition, when the discharge preparation state detection signal is input from the signal detection unit 44, the card control unit 11 performs a communication state confirmation process for confirming the communication state with the card type recording medium 9, and the card type recording medium. 9, when an alarm is output from the speaker 8 via the audio output unit 7 and a warning is displayed on the display unit 6 via the image output unit 5 to notify the user of the warning. The user is urged to stop taking out the card-type recording medium 9.

  In this embodiment, a card-type recording medium is used. However, the present invention is not limited to this, and a CD-R, a DVD-R, or the like may be used. Detecting whether or not playback is possible.

Next, the operation of the liquid crystal television receiver according to the present embodiment will be described.
The receiving unit 2 of the liquid crystal television receiver receives a control instruction from the central control unit 12 for the channel selected by the user from the operation unit 13 and receives a television digital broadcast signal (MPEG or the like) received by the antenna 1. And the image signal is output to the selection unit 3 and the audio signal is output to the audio output unit 7. Here, if there is copy protection information, the protection information extraction unit 2 a extracts it and outputs it to the central processing unit 12. This copy protection method is, for example, the DTCP method, and information such as copy free, only one copy, copy prohibition, and the like is added to a TS packet that is an MPEG stream. The protect information extraction unit 2a extracts this information.

  When displaying a television image on the display unit 6 according to a user instruction from the operation unit 13, the selection unit 3 outputs an image signal to the image output unit 5 and the still image capturing unit 4 under the control of the central control unit 12. .

  The image output unit 5 includes a full-screen display processing unit 5a that displays the entire image on one screen and a two-divided processing unit 5b that displays the image on two screens. Normally, the entire image is displayed on one screen by the entire display processing unit 5a. When the user wants to capture a still image from a moving image and presses the still image key 30 of the operation unit 13, the process is switched to the two-division processing unit 5 b of the image output unit 5, and the screen of the display unit 6 is displayed. The video is divided into two and the moving image is displayed on the left side, and the captured still image is displayed on the right side. At the same time, the still image capturing unit 4 captures a still image for one frame from the moving image based on a control signal from the central control unit 12 and stores it in a frame memory (not shown). Then, the image signal output from the receiving unit 2 via the selection unit 3 is taken into the frame memory as still image data, and this image signal is output to the image output unit 5.

  The user can check the moving image portion and the still image portion at the same time by split display, and can update the still image if there is a scene that seems to be the best shot. At this time, since a still image cannot be recorded if it is a copy protected image, only when it is not a copy protected image, “recording is possible” is displayed to notify the user. Finally, the still image that the user thinks is best can be recorded on the card type recording medium 9. When the capacity of the still image capturing unit 4 is large, a plurality of still images are temporarily stored in the frame memory, and only the still images that are finally desired to be recorded are recorded.

  Next, the notification process when recording a still image will be described in detail. 4 and 5 are flowcharts showing a processing procedure when a still image is recorded, FIG. 6 is a flowchart showing a processing procedure of processing A, and FIG. 7 is a flowchart showing a processing procedure of processing B. FIG. 8 is an explanatory diagram for explaining the operation of the display unit when a still image recording process is performed, and FIG. 9 is an explanatory diagram for explaining a display for informing that recording is possible.

  As shown in FIG. 8A, an image of a television broadcast is displayed on the liquid crystal display unit 6 by display image data from the full-screen display processing unit 5a. In this display example, a scene in which the ball falls is displayed. Therefore, an image of the ball falling downward is displayed on the screen of the display unit 6 (see FIG. 8B). Assume that the user presses the still image key 30 of the operation unit 13 in the case of the image of FIG. The central control unit 12 confirms that the still image key 30 has been pressed (step S1), and if the still image key 30 is pressed, the central display processing unit 5a to the two-divided display processing unit 5b of the image output unit 5 are pressed. (Step S2). At this time, the still image capturing unit 4 temporarily holds a user-specified still image in the frame memory in response to a control signal from the central control unit 12 and outputs the image to the image output unit 5. As shown in FIG. 8C, the two-divided display processing unit 5b of the image output unit 5 divides the screen into two parts, and displays display data for displaying a moving image on the left screen and a captured still image on the right screen. 6 is supplied. Next, the process proceeds to process A.

  In process A, the central control unit 12 confirms whether or not the image captured by the still image capturing unit 4 is a copy protected image based on the information of the protect information extracting unit 2a (step S21). For example, a guidance display “record on card with [recording key]” is additionally displayed (step S22). If it is a copy protected image, no display relating to this is made (step S23). Thus, the process A is finished, and the process proceeds to step S4.

  In this way, only when copy recording is possible, not a copy protected image, the fact is displayed. Therefore, compared to displaying the recording impossible to the user, it does not give unpleasant feeling more than necessary and whether it has failed. Does not give anxiety.

  Thereafter, when the user wants the image in FIG. 6B, that is, the moving image on the left screen in FIG. 6D as a still image, the user presses the enter key 27 of the operation unit 13. The central control unit 12 confirms whether or not the decision key 27 has been pressed (step S4). If it has been pressed, the process proceeds to step S5, and if not, it determines whether or not another key has been pressed (step S5). ). If any other key has been pressed, the process proceeds to step S6. If not, the process returns to step S4.

  In step S6, the still image capturing unit 4 captures the image shown in FIG. 8C according to the control signal from the central control unit 12, and updates the still image. When the still image capturing unit 4 captures a new still image, the two-part display processing unit 5b of the image output unit 5 updates the still image on the right screen with the newly captured image. In this way, the display 6 displays as shown in FIG. And it returns to step S4 again. In this way, the still image captured by the still image capturing unit 4 can be updated any number of times.

  When a key other than the enter key 27 is pressed, the central control unit 12 confirms whether the recording key 31 is pressed (step S8). If the recording key 31 is pressed, the process proceeds to step S8 and is pressed. If not, it is confirmed whether another key is pressed (step S9). If any other key has been pressed, the process proceeds to step S11. If not, the process returns to step S8.

  In step S10, when the recording key 31 is pressed, the central control unit 12 confirms whether the card type recording medium 9 is in a recordable state by the detection signal of the signal detection unit 44 from the card control unit 11 ( In step S31), if recording is impossible, a warning “recording is not possible” is displayed (step S32).

  When the card recording medium 6 is not loaded, unlike the case of the copy protected image, the recording can be performed by the user's action. Therefore, the above warning display is performed only when the recording medium is not loaded or not loaded. As a result, the user can recognize that the recording medium is inadequate only by displaying “Recording is not possible”, and can accurately process the recording medium.

  Next, the central control unit 12 confirms whether it is a copy protected image (step S33). If it is not a copy protected image, the still image data of the still image capturing unit 4 is selected by the control signal of the central control unit 12 according to the control signal. 3 is sent to the card control unit 11 and recorded on the card type recording medium 9 (step S34), the process B is terminated, and the process returns to step S4. If it is a copy protected image, the process B is terminated and the process returns to step S4.

  In step S11, the central control unit 12 confirms whether or not the still image key 30 has been pressed again. If the still image key 30 has been pressed, the image output unit 5 switches to the full display processing unit 5a, and the display unit 6 A moving image is displayed on the entire screen (step S12).

In step S11, only the case where the still image key 30 is pressed is described. However, as shown in FIG. 2, even if the return key 25 or the end key 26 is pressed, the entire screen is displayed on one screen. Return.
Further, although the case where a still image is recorded is described in the above flowchart, when the recording key 31 is pressed when not in the still image mode, the moving image displayed on the display unit 6 is stored in the card type recording medium 9. Record.

It is a block diagram which shows the structure of the liquid crystal television receiver which is one Embodiment of the image recording device which concerns on this invention. It is an external view which shows the example of the external appearance of an operation part. It is explanatory drawing which shows the structure of the periphery of a card type recording medium. It is a flowchart which shows the process sequence in the case of capturing a still image. FIG. 5 is a flowchart showing a processing procedure when capturing a still image following FIG. 4. FIG. 10 is a flowchart showing a processing procedure of processing A. 10 is a flowchart showing a processing procedure of processing B. It is explanatory drawing explaining the display part operation | movement in the case of performing the recording process of a still image. It is explanatory drawing explaining the display which alert | reports recording possibility.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Antenna 2 Receiving part 2a Protection information extraction part 3 Selection part 4 Still image taking-in part 5 Image output part 5a Whole display process part 5b Two division | segmentation display process part 5c Video memory 6 Display part 7 Audio | voice output part 8 Speaker 9 Card type recording Medium 10 Slot unit 11 Card control unit 12 Central control unit 13 Operation unit

Claims (8)

In an image recording apparatus for recording image data on a recording medium,
Information extracting means for extracting copy protection information from image data;
Recording means for recording on a recording medium;
Display means for displaying image data;
An image recording apparatus comprising: a display notifying unit that displays whether or not recording on a recording medium is possible based on an extraction result of the information extracting unit. In an image recording apparatus for recording image data on a recording medium,
Information extracting means for extracting copy protection information from image data;
Detecting means for detecting whether the recording medium is in a recordable state;
Recording means for recording on a recording medium;
Display means for displaying image data;
An image recording apparatus comprising: a display notification unit that displays whether or not recording is possible on a recording medium based on the extraction result of the information extraction unit and the detection result of the detection unit.   The image recording apparatus according to claim 1, wherein the display notification unit displays the fact only when recording on a recording medium is possible.   The display notifying means displays a recording effect when the recording medium or the image data is recordable, and a process not displaying the recordability when the recording medium or the image data is not in a recordable state. When the operation for recording the image data on the recording medium is performed and the recording medium or the image data is not in a recordable state, a message indicating that recording is impossible is displayed. The image recording apparatus according to claim 1. In an image recording method for recording image data on a recording medium by a recording means,
An extraction step for extracting copy protection information from the image data;
An image recording method comprising: a notifying step for displaying on a display means and informing whether or not recording on a recording medium is possible based on the extraction result of the copy protection information. In an image recording method for recording image data on a recording medium by a recording means,
An extraction step for extracting copy protection information from the image data;
A detection step of detecting whether the recording medium is in a recordable state;
An image recording method comprising: a notification step of displaying on a display means and informing whether or not recording on a recording medium is possible based on the extraction result of the copy protection information and the detection result.   The image recording apparatus according to claim 5 or 6, wherein the notification step displays only when recording is possible on a recording medium.   The notification step includes a process of displaying that recording is possible when recording medium or image data is recordable, and a process of not displaying that recording is possible when the recording medium or image data is not in a recordable state. Any of the above is performed selectively, and when the operation of recording the image data on the recording medium is performed, if the recording medium or the image data is not in a recordable state, a message indicating that recording is impossible is displayed. The image recording apparatus according to claim 5.

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