JP3090135U - DVD / hard disk integrated recording / reproducing apparatus and video recording / reproducing apparatus - Google Patents

Abstract

(57) [Summary] [PROBLEMS] A recording error sometimes occurs during recording on a video recording medium. SOLUTION: The DVD control unit constituting the first recording means and the hard disk drive constituting the second recording means are controlled so as to record video signals expressing video separately, and the video signal is controlled. DVD
Receiving a setting input for recording on both the RW (first video recording medium) and the hard disk (second video recording medium), and simultaneously transmitting the same video signal to both the DVD control unit and the hard disk drive; Was recorded. Even if a recording error occurs during recording on the DVD-RW, the contents to be recorded on the DVD-RW are recorded in a predetermined area of the hard disk.
-It is possible to improve the reliability when recording a video on the RW.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a DVD / hard disk integrated recording / reproducing apparatus and a video recording / reproducing apparatus.

[0002]

[Prior art]

 In recent years, an integrated recording / reproducing apparatus of this type of DVD (Digital Versatile Disk) and hard disk has been equipped with a DVD control unit capable of recording and reproducing video including audio on a DVD-RW, DVD-RAM, and the like, and an audio storage device on the hard disk. It has a hard disk drive that can record and play back video including video. A recording mode for recording on a DVD and a recording mode for recording on a hard disk are provided. When a recording mode selection input is received from a remote control or an operation panel, etc., the DVD and the hard disk can be used for TV programs and the like. Processing for recording on either one is performed.

[0003]

[Problems to be solved by the invention]

 The above-described technology has the following problems. That is, a recording error may occur when recording a television program or the like on a video recording medium such as a DVD. There was a desire to improve the reliability of recording video. Also, as disclosed in Japanese Patent Application Laid-Open No. 8-149402, two television video signal recording / reproducing devices are used, and a television program is recorded and used for recording while switching the recording / reproducing device halfway. There is also known a technique for reproducing the same television program by using the other recording / reproducing device. According to this technology, while a TV program is being recorded, the TV program can be reproduced from the start of recording by a simple operation, but this does not improve the reliability of recording the video. The present invention has been made in view of the above problems, and an object of the present invention is to provide an integrated recording / reproducing apparatus of a DVD and a hard disk and a video recording / reproducing apparatus capable of improving reliability in recording a video.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the invention according to claim 1 is capable of inputting a television signal representing video and audio such as a television program and converting it into digital stream data and digital data in a predetermined format. A digital stream data and a signal processing circuit capable of converting the digital data into the same television signal and outputting the same; and a digital rewritable DVD capable of recording the digital stream data converted from the television signal. A DVD control unit capable of reading digital stream data recorded on the DVD, a hard disk, and digital data converted from the television signal can be recorded on the hard disk, and can be recorded on the hard disk. Read digital data An operation hard disk drive, an operation input unit capable of receiving a setting input of a video recording medium for recording, and recording of the digital stream data to the DVD control unit in response to the received setting input. An integrated input / output device for a DVD and a hard disk, comprising a system controller for controlling read / write of the digital data with respect to the hard disk drive and controlling the read / write of the digital data with respect to the hard disk drive. And the hard disk, the setting input for recording on both the DVD and the hard disk can be accepted. When the operation input unit receives the setting input for recording on both the DVD and the hard disk, the Cisco Digital converted from the above television signal At the same time as performing the control for recording the trim data, the control for recording the digital data converted from the same television signal so that the hard disk drive is repeatedly overwritten on a predetermined area of the hard disk is performed. In addition, it is determined whether or not a predetermined error has occurred during recording on the DVD, and when it is determined that the error has occurred, the hard disk drive is stopped from overwriting a predetermined area of the hard disk and the same is performed. The control to record the digital data in another area of the hard disk is performed, and when the recording of the digital data is completed, the digital data recorded in the predetermined area is used for the DVD control unit. On the other hand, control to restore digital stream data recorded on the DVD There is a configuration to perform.

The DVD / hard disk integrated recording / reproducing apparatus includes a signal processing circuit, a DVD control unit, a hard disk, a hard disk drive, an operation input unit, and a system controller. A television signal expressing video and audio such as a television program can be converted into digital stream data and digital data in a predetermined format when input to a signal processing circuit. The digital stream data and digital data can be converted into television signals by the same signal processing circuit and output.

Digital stream data converted from a television signal can be recorded on a rewritable DVD by a DVD control unit. The digital stream data recorded on the DVD can be read by the DVD control unit. On the other hand, digital data converted from a television signal can be recorded on a hard disk by a hard disk drive. The digital data recorded on the hard disk can be read by the hard disk drive. When the operation input unit receives a setting input of a video recording medium on which recording is to be performed, the system controller controls the DVD control unit to record and read digital stream data and also controls the hard disk drive according to the received setting input. Control of recording and reading of digital data with respect to the

Here, it is possible to input settings for recording on both the DVD and the hard disk by using the operation input unit. When the user inputs a setting to be recorded on both the DVD and the hard disk, the setting input is accepted by the operation input unit. Then, the system controller controls the DVD control unit to record the digital stream data converted from the television signal, and at the same time, repeatedly overwrites a predetermined area of the hard disk on the hard disk drive. Thus, control for recording digital data converted from the same television signal is performed. Then, even if a recording error occurs during recording on the DVD, the content to be recorded on the DVD is recorded in a predetermined area of the hard disk. Therefore, it is possible to improve the reliability when recording a video in DVD. At this time, digital data is repeatedly overwritten only in a predetermined area on the hard disk, so that the storage capacity of the hard disk required for simultaneously recording the same video signal on both video recording media can be reduced.

The system controller determines whether a predetermined error has occurred during recording on the DVD. When it is determined that the error has occurred, under the control of the system controller, the hard disk drive stops overwriting a predetermined area of the hard disk and records digital data in another area of the hard disk. That is, when an error occurs during recording on the DVD, the digital data at the location where the error has occurred remains recorded in the predetermined area. When the recording of the digital data is completed, the system controller uses the digital data recorded in the predetermined area to control the DVD control unit to restore the digital stream data recorded on the DVD. Then, when the recording is completed, the digital stream data recorded on the DVD is restored by the digital data recorded in the predetermined area on the hard disk. Therefore, processing during video recording can be reduced.

The digital stream data may be any data relating to video and audio that can be recorded on a DVD, and various types of data can be adopted. For example, the digital stream data may be in MPEG (Moving Picture Experts Group) format. Can be. The digital data described above may be any data relating to video and audio that can be recorded on a hard disk, and various types of data can be adopted, for example, a DV format.

By the way, the present invention can be applied to a video recording / reproducing apparatus which can input and record a video signal representing a video and reproduce the recorded video signal. Therefore, the invention according to claim 2 is a video recording / reproducing apparatus capable of inputting and recording a video signal representing a video and reproducing the recorded video signal, wherein the rewritable first video is provided. A first recording unit capable of recording the video signal on a recording medium; a second recording unit capable of recording the video signal on a rewritable second video recording medium; It is possible to separately control the second recording means to record the video signal, and to receive a setting input for recording the video signal on both the first and second video recording media. And control means for controlling the first and second recording means to simultaneously record the same video signal on the first and second video recording media when receiving the setting input. Structure There as.

[0011] The video recording / reproducing apparatus includes first and second recording units and a control unit. The first rewritable video recording medium can record a video signal expressing a video by the first recording means. The same video signal can be recorded on the rewritable second video recording medium by the second recording means. For the first and second recording means, control for recording a video signal separately by the control means is performed. Here, when the user performs a setting input for recording the video signal on both the first and second video recording media, the control means accepts the setting input and sends the setting input to the first and second recording means. Control to simultaneously record the same video signal on the first and second video recording media. Then, even if a recording error occurs during recording on one video recording medium, the video signal to be recorded on the same video recording medium is recorded on the other video recording medium. Therefore, it is possible to improve reliability when recording a video.

[0012] The video signal may be a signal representing only a video, or a signal containing audio in the video. Further, the video signal may be recorded on the first and second video recording media in the same format, or may be converted into predetermined data and recorded on the first and second video recording media. The predetermined data may be in the same format or in different formats.

The control unit may have various configurations. As an example, the invention according to claim 3 is characterized in that the control means determines whether or not a predetermined error has occurred during the recording on the first video recording medium by the first recording means, When it is determined that the error has occurred, the video signal recorded on the first video recording medium is restored to the first recording means using the video signal recorded on the second video recording medium. It is configured to perform control to make it work. That is, even if a predetermined error occurs during recording on the first video recording medium, the video signal to be recorded on the first video recording medium is recorded on the second video recording medium. The video signal recorded on the first video recording medium is restored by the video signal. Further, it is determined whether or not a predetermined error has occurred during recording on the second video recording medium, and when it is determined that the error has occurred, the video signal recorded on the first video recording medium is used to determine the second error. The second recording means may restore the video signal recorded on the second video recording medium.

[0014] In the invention according to claim 4, the control means controls the first recording means to record the video signal and simultaneously controls the second recording means. Controlling the recording of the same video signal so as to repeatedly overwrite a predetermined overwriting area of the second video recording medium, and using the video signal recorded on the second video recording medium when it is determined that the error has occurred Then, the first recording means is controlled to restore the video signal recorded on the first video recording medium. That is, since the video signal is repeatedly overwritten only in the predetermined overwriting area on the second video recording medium, the second video recording medium necessary for simultaneously recording the same video signal on both video recording media is required. Requires less storage capacity.

In the invention according to claim 5, the control means overwrites the second recording means with the overwriting area of the second video recording medium when it is determined that the error has occurred. Is stopped and the video signal is recorded in another area of the second video recording medium, and when the recording of the video signal is terminated, the video signal recorded in the overwriting area is used. The first recording means is configured to perform control to restore the video signal recorded on the first video recording medium. That is, when a predetermined error occurs during recording on the first video recording medium, overwriting on a predetermined overwriting area of the second video recording medium is stopped. The video signal remains recorded in the overwriting area. The video signal after the occurrence of the error is recorded in another area of the second video recording medium. Then, when the recording of the video signal ends, the video signal recorded on the first video recording medium is restored by the video signal recorded on the overwriting area in the second video recording medium.

The storage size of the overwriting area may be determined in advance, or the storage size may be variable. In view of the above, the invention according to claim 6 is characterized in that the control means is capable of accepting a setting input for a time for recording the digital data in the overwriting area, and having a storage size corresponding to the setting input time. The range of the overwriting area is determined so that the video signal is recorded on the second recording means so as to repeatedly overwrite the determined overwriting area. That is, the storage size of the overwrite area changes according to the setting input for the time for recording digital data.

Here, as an example of the video recording medium, the invention according to claim 7 is that the first video recording medium is a rewritable optical disc medium, and the second video recording medium is a hard disk. There is a certain configuration. That is, a video signal can be recorded using a general-purpose video recording medium. The optical disk medium only needs to be able to record a video signal, and is preferably a DVD-RW or a DVD-RAM in the sense that it has a large capacity and records data for reproducing video and audio in real time. However, it may be a CD, MO, MD, or the like. In this case, the first recording means only needs to be able to record and reproduce the video signal according to the type of the optical disk medium, and various configurations are conceivable. Of course, various types of first and second video recording media are conceivable, and the first video recording medium may be a hard disk and the second video recording medium may be an optical disc medium. Also, the first and second recording means may have various configurations, for example, an optical pickup, a magnetic head, and a disk medium that can access an optical disk medium to be recorded / read. What is necessary is just to comprise a servo mechanism etc. as one unit. Of course, if the video recording medium is a magnetic tape, a magnetic head accessible to the magnetic tape, a servo mechanism for running the magnetic tape, and the like may be configured as one unit.

[0018]

[Effect of the invention]

 As described above, the present invention can provide an integrated recording / reproducing apparatus of a DVD and a hard disk that can improve the reliability of recording a video on a DVD. At that time, the required storage capacity of the hard disk is small, so there is no need to increase the storage capacity of the hard disk, and even if a predetermined error occurs during the recording to DVD, there is no burden on the processing during video recording. This is convenient because the video signal recorded on the DVD is restored at the end. Further, according to the invention of claim 2, it is possible to provide a video recording / reproducing apparatus capable of improving the reliability when recording video. Further, according to the invention of claim 3, even if a predetermined error occurs during recording on the first video recording medium, the video signal recorded on the first video recording medium is restored. , Convenience can be improved.

Further, according to the invention of claim 4, the storage capacity of the second video recording medium required for simultaneously recording the same video signal on both video recording media can be reduced. There is no need to increase the storage capacity of the second video recording medium. Further, according to the invention of claim 5, when the recording of the video signal is completed, the video signal recorded on the first video recording medium is restored, so that the processing during video recording can be reduced. . Further, according to the present invention, the storage size of the overwriting area can be changed by inputting the setting, thereby improving the convenience. Further, according to the invention of claim 7, it is possible to record a video signal using a general-purpose video recording medium.

[0020]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described in the following order. (1) Description of video recording / reproducing device: (2) Operation of video recording / reproducing device: (3) Summary:

(1) Description of Video Recording / Reproducing Apparatus: FIG. 1 is a block diagram schematically showing the configuration of an integrated DVD / hard disk recording / reproducing apparatus 100 to which a video recording / reproducing apparatus according to an embodiment of the present invention is applied. This is indicated by. In the figure, the recording / reproducing apparatus 100 includes a signal processing circuit 10, a DVD control unit 20, a hard disk (HD) 30, a hard disk drive (HDD) 40, an operation input unit 50, a system controller 60, and the like. The recording / reproducing apparatus 100 includes a rewritable DVD-DVD-RW (first video recording medium) based on a television signal (video signal) from a television (TV) 80 connected to the outside. And a hard disk (second video recording medium) 30. Of course, when a tuner capable of receiving a television broadcast wave is built in, a television signal from the tuner may be recorded on a DVD-RW or a hard disk.

The signal processing circuit 10 includes a DV signal processing unit 11 connected to the DVD control unit 20, the hard disk drive 40, the system controller 60, and the changeover switch 72, and an A / D converter connected to the DV signal processing unit 11. A circuit 12 is provided. The television 80 is connected to the A / D conversion circuit 12 via a cable of a predetermined standard. The television 80 receives television broadcast waves via an antenna (not shown), performs predetermined signal processing, and outputs video and audio such as a television program. In addition, it receives a television broadcast wave and performs predetermined signal processing to create an analog television signal representing video and audio such as a television program, and outputs the television signal to the recording / reproducing apparatus 100. I do. Further, it performs predetermined signal processing on the input television signal, and outputs video and audio based on the television signal output from the recording / reproducing apparatus 100.

The A / D conversion circuit 12 converts an analog television signal input from the television 80 into a digital television signal, and outputs the digital television signal to the DV signal processing unit 11. In addition, the digital television signal is converted from a digital television signal input from the DV signal processing unit 11 into an analog television signal, and is output to the television 80 after being subjected to predetermined amplification and the like. Therefore, the television 80 can obtain the analog television signal and output video and audio.

The DV signal processing unit 11 outputs digital stream data (data bit stream) of a predetermined format output from an input / output terminal of the DVD control unit 20 or output from a 1394 I / O 71 conforming to the IEEE 1394 standard. It has a circuit group that performs various signal processing based on digital data of a predetermined format (DV format), converts the data into various data modes, and outputs the data. One of the processes performed by these circuit groups is MPEG demodulation. That is, the digital stream data is recorded in the DVD-RW in the MPEG format, and when the digital stream data in the MPEG format is input from the DVD control unit 20, the DV signal processing unit 11 transmits the moving picture information before the compression conversion. And audio information to obtain a video output and an audio output, and output the restored signal to the A / D conversion circuit 12. In addition, the DV signal processing unit 11 outputs various information such as a region code to the system controller 60 from data obtained at the time of MPEG demodulation of digital stream data. Based on the information, the system controller 60 disables the reproduction of the medium whose reproduction is prohibited by the region, and performs processing for outputting information such as title names and cast information.

Further, the DV signal processing unit 11 also includes a DV codec for mutually converting between digital stream data in the MPEG format and digital data in the DV format. This DV codec is capable of encoding MPEG-demodulated video and audio signals into digital signals and outputting them as DV format digital data. Also, it can decode the digital data in DV format and output digital stream data in MPEG format. The 1394 I / O 71 is connected to a personal computer (PC) 90 having a 1394 I / O conforming to the IEEE 1394 standard. The signal form output from / O71 can be switched and output to the PC. Regardless of which signal is input to the 1394 I / O 71, the digital stream data can be digitally recorded on the DVD by operating the changeover switch 72. As described above, the DV signal processing unit 11 and the A / D conversion circuit 12 can input a television signal and convert it into digital stream data and digital data in a predetermined format. It can convert digital data to the same television signal and output it.

The DV signal processing section 11 has an on-screen display circuit (OSD) 11a. The OSD 11a superimposes the OSD signal from the system controller 60 on the digital television signal and outputs the signal to the A / D conversion circuit 12. Of course, the OSD may be built in the system controller 60.

The DVD control unit 20 converts video / audio information, captions, region codes, and other information for a DVD-RW, which is an optical disk medium, in units of a GOP (Group of Picture) composed of multiple pieces of frame information. In addition to being able to record digital stream data, the recorded digital stream data can be read out. The DVD control unit 20 includes an optical pickup 21, a servo signal processing unit 22 that sends a control signal to a focus servo or the like to drive the optical pickup 21 to a predetermined position, and amplifies a read signal from the optical pickup 21. An RF amplifier 24 generates a predetermined control signal, and a signal processing unit 26 reads and outputs recorded digital stream data from the amplified signal. The signal processing unit 26 is connected to the DV signal processing unit 11 and the changeover switch 72. These devices operate under the control of the system controller 60, and digital stream data recorded on the DVD-RW is output from the input / output terminal of the DVD control unit 20. Further, the DVD control unit 20 outputs to the system controller 60 a signal indicating a recording state and a reading state with respect to the DVD-RW. For example, when a write error has occurred, which means that accurate data was not recorded on the DVD-RW, a signal indicating the write error is created and output to the system controller 60. The system controller 60 reads the signal from an I / O port (not shown), obtains a recording state and a reading state with respect to the DVD-RW, and performs a corresponding process.

The signal processing unit 26 also performs signal processing when recording digital stream data. When digital stream data is input from the input / output terminal of the DVD control unit 20, the servo signal processing unit 22 and the optical pickup 21 are driven by the processing of the signal processing unit 26, and the laser is adjusted while adjusting the output to a predetermined position. And digital stream data can be recorded on the DVD-RW. As described above, the DVD control unit 20 can record the digital stream data converted from the television signal on the DVD-RW, and can read the digital stream data recorded on the DVD-RW. ing .

The hard disk drive 40 is connected to the DV signal processing unit 11 and the system controller 60. The hard disk drive 40 is capable of recording DV format digital data converted from television signals on a large capacity hard disk 30 composed of a plurality of magnetic disks, and is also capable of recording DV format digital data recorded on the hard disk 30. Data can be read.

The operation input unit 50 includes an operation panel 51, a light receiving circuit 52, and a remote control transmitter 53, and can receive a setting input of a video recording medium on which recording is performed. The operation panel 51 and the light receiving circuit 52 are connected to the system controller 60. The operation panel 51 has a plurality of operation buttons. When an operation input to the operation buttons is received, the operation panel 51 generates a corresponding operation signal and outputs it to the system controller 60. The remote control transmitter 53 has a plurality of operation keys. When receiving an operation input to the operation keys, the remote control transmitter 53 generates a corresponding infrared remote control signal and outputs it to the light receiving circuit 52. Then, when receiving the infrared remote control signal, the light receiving circuit 52 converts the signal into an electric signal and outputs it to the system controller 60. The user operates the operation panel 51 and the remote control transmitter 53 to play / stop the video signal recorded on the DVD-RW or the hard disk 30, access a desired track, select a language, and select a camera angle. In addition to the change and the like, it is possible to perform setting input of a video recording medium on which recording is performed, recording of a video signal on the video recording medium to which the setting is input, and the like.

The system controller 60 is connected to the DV signal processing unit 11, the DVD control unit 20, the hard disk drive 40, the operation input unit 50, and the 1394 I / O 71. The system controller 60 controls the DVD control unit 20 to record and read the digital stream data in the MPEG format according to the setting input received by the operation input unit 50, and controls the hard disk drive 40 to perform the DV control. It controls recording and reading of digital data in a format. In order to perform the control, the system controller 60 includes a CPU serving as a main body of arithmetic processing, a ROM storing a predetermined control program, a RAM used as a work area, and a control circuit for controlling external devices. Etc. are provided. Under the control of the system controller 60, the DVD control unit 20, the DV signal processing unit 11, and the hard disk drive 40 perform predetermined processing, and record and read video signals to and from the DVD-RW and the hard disk 30.

Further, the system controller 60 generates an OSD signal in response to an operation of the remote control transmitter 53 and the like, and outputs the OSD signal to the OSD 11 a. For example, when a predetermined recording mode selection key is pressed by the remote control transmitter 53, a remote control signal indicating that the recording mode selection key is pressed is input to the system controller 60 via the light receiving circuit 52. Then, the silicon 60 creates an OSD signal for causing the television 80 to perform an OSD display for selecting a recording mode. This OSD signal is converted from the OSD 11 a to a corresponding television signal, and output to the television 80 via the A / D conversion circuit 12. FIG. 2 shows an example of an OSD display displayed on the television 80 based on the television signal.

Conventionally, only a recording mode for recording data on one of a DVD-RW and a hard disk is provided. For this reason, if a recording error occurs while recording a video including a sound such as a television program on any video recording medium, a continuous video is cut off in the middle. In particular, since it is not possible to re-record a TV program, it has been desired to improve the reliability of recording a video. Therefore, in the present recording / reproducing apparatus 100, as shown in FIG. 2, a new recording mode for recording on both the DVD-RW and the hard disk 30 is provided, and recording is performed without interruption of a continuous video without fail. I can do it.

When the recording mode selection screen shown in FIG. 2 is displayed on the television 80, when the cursor key or the like of the remote control transmitter 53 is operated, the cursor C1 moves up and down on the display area of each recording mode. It is supposed to. Then, when the enter key or the like of the remote control transmitter 53 is operated, a recording mode corresponding to the position of the cursor C1 is set and input. In the drawing, the recording mode of “record on both (no overwriting)” is a mode in which recording can be performed on both the DVD-RW and the hard disk 30 and reproduction can be performed from any video recording medium. In the recording mode of “record on both (HD overwrite)”, recording is performed on both the DVD-RW and the hard disk 30, but in principle, digital data is repeatedly overwritten only in a predetermined area on the hard disk 30. Mode. As described above, the operation input unit 50 can receive a setting input to be recorded on both the DVD-RW and the hard disk 30.

When the setting input for recording both on the video recording medium is received, the system controller 60 controls the DVD control unit 20 to record the digital stream data converted from the television signal. At the same time, it controls the hard disk drive 40 to record digital data converted from the same television signal. At this time, as shown in FIG. 3, the DVD control unit 20 sequentially records continuous digital stream data in the recording area R1 determined according to the recording state of the DVD-RW, and the hard disk drive 40 Continuous digital data is recorded in the overwriting area R2, which is a predetermined area of the disc 30, so as to be repeatedly overwritten. In the upper part of the figure, the recording area of the DVD-RW is schematically shown, and in the lower part of the figure, the recording area of the hard disk is schematically shown, so that continuous data is accumulated rightward in the figure. Has become. Here, the overwriting area R2 of the hard disk has a storage size that allows recording for a predetermined time (for example, 5 minutes) at the time of shipment of the recording / reproducing apparatus 100, but can be changed according to the setting input. I have. That is, digital data is repeatedly written into the overwriting area R2 from the recording start position at every set time. As described above, since the video signal is repeatedly overwritten only in the predetermined overwrite area on the hard disk, the storage capacity of the hard disk required for simultaneously recording the same video signal on both video recording media can be reduced, and the hard disk can be hardened. There is no need to increase the storage capacity.

Also, the system controller 60 reads a signal indicating the recording state of the DVD-RW from the DVD control unit 20, and writes a signal indicating that accurate data was not recorded during recording on the DVD-RW. It has been determined whether a predetermined error such as an error has occurred. When it is determined that the error has occurred, as shown in FIG. 4, control is performed so that the hard disk drive 40 stops overwriting the overwriting area R2 of the hard disk and records digital data in another area R3 of the hard disk. I do. Then, even if a recording error occurs during recording on the DVD-RW, the content to be recorded on the DVD-RW is recorded in the overwrite area R2 of the hard disk. Reliability can be improved.

When the recording of the digital data is terminated, that is, when the recording of the continuous television signal is terminated, as shown in FIG. 5, the digital data recorded in the overwriting area R2 is used. It controls the DVD control unit 20 to restore the digital stream data recorded on the DVD-RW. Then, when the recording is completed, the digital stream data recorded on the DVD-RW is restored by the digital data recorded in the predetermined overwrite area on the hard disk, so that the processing during video recording can be reduced. become. After restoring the digital stream data recorded on the DVD-RW, the system controller 60 causes the DVD control unit 20 to record management information including a start address and a data length in a predetermined area of the DVD-RW. Processing is also performed. Therefore, the video is reproduced from the DVD-RW by referring to the management information from the DVD-RW.

As described above, the DVD control unit 20 and the signal processing circuit 10 are capable of recording a video signal representing a video on a rewritable first video recording medium as digital stream data. In addition to constituting one recording means, it is possible to reproduce an analog television signal from the recorded digital stream data. In addition, the hard disk drive 40 and the signal processing circuit 10 constitute second recording means capable of recording the video signal as digital data on a rewritable second video recording medium, and Can reproduce analog television signals. The system controller 60 and the operation input unit 50 constitute a control unit according to the present invention.

(2) Operation of the Video Recording / Reproducing Apparatus: The operation of the video recording / reproducing apparatus will be described below. FIG. 6 is a flowchart showing a recording mode setting process for setting and inputting a recording mode. The system controller 60 performs a process of repeatedly receiving an operation signal from the operation panel 51 and a remote control signal from the remote control transmitter 53 via the light receiving circuit 52. When the user performs an operation input to select a recording mode from the operation panel 51 or the remote control transmitter 53, a signal indicating the selection of the recording mode is input to the system controller 60 from the operation panel 51 or the light receiving circuit 52. . Then, the system controller 60 starts the flow shown in the figure. The processing of this flow is performed by the CPU of the system controller 60.

First, a recording mode selection screen as shown in FIG. 2 is displayed by OSD (step S 105). Next, by receiving an operation input from the operation panel 51 or the remote control transmitter 53, a setting input of the recording mode selected on the screen is received and obtained (step S110). Then, it is determined whether or not the recording mode for recording on both the DVD-RW and the hard disk is a recording mode for repeatedly overwriting the overwriting area of the hard disk (step S115). If the mode is not the recording mode in which the overwriting area of the hard disk is repeatedly overwritten, the flow ends.

If the recording mode is to repeatedly overwrite the overwriting area of the hard disk, an overwriting time input screen (not shown) is displayed by OSD (step S 120). At this time, a default overwriting time (for example, 5 minutes) is displayed on the screen. Next, by receiving an operation input from the operation panel 51 or the remote control transmitter 53, a setting input regarding a time for recording a video signal in the overwriting area is received and obtained (step S125). Here, if no operation other than the confirmation operation of the remote controller transmitter 53 or the like is performed, a default overwrite time is acquired. Then, the range of the overwriting area is determined so as to have a storage size corresponding to the time set and input, and the area is stored in a predetermined area of the RAM in the system controller 60 (step S130), and this flow ends. As described above, the size of the area for recording video on the hard disk can be changed, so that the present recording and reproducing apparatus is convenient.

FIG. 7 is a flowchart showing a simultaneous recording process for recording video including audio in a recording mode in which the overwriting area of the hard disk is repeatedly overwritten. When the user performs an operation input indicating the start of recording from the operation panel 51 or the remote control transmitter 53, a signal indicating the start of recording is input to the system controller 60 from the operation panel 51 or the light receiving circuit 52. Then, a recording flag indicating that recording is in progress is set (for example, 1 is substituted). Here, in the recording mode in which the overwriting area of the hard disk is repeatedly overwritten, the system controller 60 starts the flow shown in the figure.

First, it is determined whether or not to start recording (step S205). Since the syscon 60 needs to perform many processes almost simultaneously, by performing this determination process, it is possible to perform the recording process according to the present flow even if the recording is already being performed. If the recording is to be started, the process proceeds to step S210, and if the recording is already being performed, the process proceeds to step S225.

In step S 210, various types of initialization processing such as initializing parameters when starting recording are performed. Next, the DVD control unit 20 is controlled to record digital stream data (step S215). Then, immediately, digital data representing the same content as the video signal started to be recorded on the DVD-RW is written to the hard disk drive 40 so as to repeatedly overwrite the overwriting area of the hard disk 30 whose range has been determined in step S130. Control for recording is performed (step S220). Then, as shown in FIG. 3, recording of digital stream data converted from a television signal expressing video and audio such as a television program onto the DVD-RW is started, and at the same time, the overwriting area of the hard disk is overwritten. Recording of digital data converted from the same television signal is started in R2.

In step S225, a signal indicating the recording state is read from the DVD control unit 20, and it is determined whether a predetermined recording error has occurred. When it is determined that the recording error has occurred, it is determined that a predetermined error has occurred during recording on the DVD-RW, and the process proceeds to step S230. On the other hand, when it is determined that the recording error has not occurred, it is determined that the predetermined error has not occurred during recording on the DVD-RW, and the process proceeds to step S240.

In step S230, as shown in FIG. 4, control is performed to stop the hard disk drive 40 from overwriting the overwrite area R2 of the hard disk. In addition, control for recording digital data in another area R3 of the hard disk is performed (step S235). In step S240, it is determined whether or not recording on both video recording media is to be terminated. If the recording is not to be ended, the present flow is terminated. However, when it is confirmed that the recording flag is set, the present flow is started again. Then, since the recording is already being performed, the processing of steps S210 to S220 is skipped, and the processing of steps S225 to S250 is repeated. Here, if a recording error further occurs during recording on the DVD-RW, the digital data is recorded in another area on the hard disk, which is different from the above-mentioned another area R3.

When the recording on both video recording media is completed, as shown in FIG. 5, the DVD control unit refers to the digital data recorded in the overwrite area R2 of the hard disk and uses the digital data. 20 is controlled to restore the digital stream data recorded on the DVD-RW (step S245). Thereafter, the recording start date and time, the data length, and the like are acquired to create management information, and the DVD control unit 20 stores the management information in a predetermined area of the DVD-RW (step S250). finish.

(3) Summary: As described above, even if a recording error occurs during recording on the DVD-RW, the contents to be recorded on the DVD-RW are recorded on the hard disk, so that the video is recorded. Reliability can be improved. Also, since the required hard disk storage capacity is small, there is no need to increase the hard disk storage capacity. Furthermore, since the digital stream data recorded on the DVD is restored by the digital data recorded in a predetermined area of the hard disk at the end of recording, the processing during video recording can be reduced.

In the above-described embodiment, the hard disk is repeatedly overwritten in a predetermined area. However, the DVD-RW is repeatedly overwritten in a predetermined area in accordance with a use environment. Alternatively, continuous digital data may be recorded without overwriting. Even in this case, even if a recording error occurs during recording on the hard disk, the content to be recorded on the hard disk is recorded on the DVD-RW, so that the reliability in recording video is improved. There is no substitute for what you can do. Of course, the present invention can be applied to various video recording media such as a DVD-RAM and a video tape in addition to the DVD-RW and the hard disk. Further, three or more types of video recording media may be prepared, and videos of the same content may be simultaneously recorded on three or more types of video recording media. Then, it is possible to more reliably improve the reliability of recording the video. As described above, according to the present invention, it is possible to provide a DVD / hard disk integrated recording / reproducing apparatus and a video recording / reproducing apparatus capable of improving the reliability of recording a video.

[Brief description of the drawings]

FIG. 1 is a block diagram schematically showing a configuration of an integrated recording and reproducing apparatus of a DVD and a hard disk according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a display screen of an OSD display displayed on a television.

FIG. 3 is a diagram schematically showing recording on a video recording medium.

FIG. 4 is a diagram schematically illustrating recording on a video recording medium when a recording error occurs.

FIG. 5 is a diagram schematically showing a state in which digital stream data recorded on a DVD-RW is restored.

FIG. 6 is a flowchart illustrating a recording mode setting process for setting and inputting a recording mode.

FIG. 7 is a flowchart illustrating a simultaneous recording process of performing recording in a recording mode in which an overwrite area is repeatedly overwritten.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 signal processing circuit 11 DV signal processing unit 11 a on-screen display circuit 12 A / D conversion circuit 20 DVD control unit 21 optical pickup 22 servo signal processing unit 24 RF amplifier 26 signal processing unit 30 Hard disk 40 ... Hard disk drive 50 ... Operation input unit 51 ... Operation panel 52 ... Light receiving circuit 53 ... Remote control transmitter 60 ... Syscon 80 ... TV 100 ... DVD and hard disk integrated recording / reproducing device R1 ... Recording area R2 ... Overwriting area R3 … Another area

Claims (7)

[Utility model registration claims] 1. A television signal representing video and audio of a television program or the like can be inputted and converted into digital stream data and digital data in a predetermined format, and the digital stream data and digital data can be converted into the television signal. A signal processing circuit capable of converting and outputting the digital stream data converted from the television signal to a rewritable DVD, and capable of reading the digital stream data recorded on the DVD A DVD control unit, a hard disk, and digital data converted from the television signal can be recorded on the hard disk.
A hard disk drive capable of reading digital data recorded on the hard disk, an operation input unit capable of receiving a setting input of a video recording medium for recording, and a DVD control unit in response to the received setting input. An integrated input / output device for a DVD and a hard disk, comprising: a system controller that controls recording and reading of the digital stream data and controls recording and reading of the digital data with respect to the hard disk drive. Can receive a setting input for recording on both the DVD and the hard disk. When the setting input for recording on both the DVD and the hard disk is received by the operation input unit, the system controller Against At the same time as controlling to record the digital stream data converted from the television signal, the digital data converted from the same television signal so that the hard disk drive repeatedly overwrites a predetermined area of the hard disk. It is determined whether or not a predetermined error has occurred during the recording on the DVD, and when it is determined that the error has occurred, the hard disk drive is overwritten on a predetermined area of the hard disk. Is stopped and the digital data is recorded in another area of the hard disk. When the recording of the digital data is completed, the digital data recorded in the predetermined area is used for the DVD control unit. On the other hand, the digital Integrated reproducing apparatus of a DVD and a hard disk and performs control to repair the Le stream data. 2. A video recording / reproducing apparatus capable of inputting and recording a video signal representing a video and reproducing the recorded video signal, wherein said video recording / reproducing apparatus is capable of reproducing a recorded video signal with respect to a first rewritable video recording medium. A first recording means capable of recording a video signal; a second recording means capable of recording the video signal on a rewritable second video recording medium; and a first recording means capable of recording the video signal. And control for recording the video signal separately, and a setting input for recording the video signal on both the first and second video recording media can be received. Control means for controlling the first and second recording means to simultaneously record the same video signal on the first and second video recording media. Raw equipment. 3. The control means determines whether or not a predetermined error has occurred during recording on the first video recording medium by the first recording means, and determines that the error has occurred when the error has occurred. Using the video signal recorded on the second video recording medium to control the first recording means to restore the video signal recorded on the first video recording medium. Item 3. The video recording / reproducing device according to Item 2. 4. The control means controls the first recording means to record the video signal, and at the same time, controls the second recording means to control a predetermined state of the second video recording medium. Control to record the same video signal so as to repeatedly overwrite the overwriting area, and when it is determined that the error has occurred, the first recording unit uses the video signal recorded on the second video recording medium. 4. The video recording / reproducing apparatus according to claim 3, wherein control is performed to restore the video signal recorded on the first video recording medium. 5. When the control means determines that the error has occurred, the control means causes the second recording means to stop overwriting the overwriting area of the second video recording medium, and Performs control to record the video signal in another area of the recording medium and uses the video signal recorded in the overwrite area when the recording of the video signal is terminated to the first recording means. The video recording / reproducing apparatus according to claim 4, wherein control is performed to restore the video signal recorded on the first video recording medium. 6. The control means is capable of accepting a setting input concerning a time for recording the digital data in the overwriting area, and setting the storage area in accordance with the setting input time. And controlling the second recording means to record the video signal so as to repeatedly overwrite the determined overwriting area.
The video recording / reproducing device according to any one of the above. 7. The method according to claim 2, wherein the first video recording medium is a rewritable optical disc medium, and the second video recording medium is a hard disk.
The video recording / reproducing device according to claim 6.