JP2004159225A - Device for recording and reproducing video and sound signal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the user-friendliness of a composite device of a hard disk device and a DVD device by providing a device capable of recording HD broadcasting such as BS digital broadcasting on a hard disk and a DVD and realizing a transverse function extending over the hard disk device and the DVD device. <P>SOLUTION: This recording and reproducing device is provided with: a digital broadcasting tuner 1 for receiving digital high-definition television broadcasting; a hard disk controller 3 and a DVD controller 5 for recording/reproducing an output signal from the digital broadcasting tuner; and an HD-SD converter 10 for converting a digital high definition (HD) signal into a digital standard (SD) signal. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a video / audio recording / reproducing apparatus capable of receiving digital broadcasting, and more particularly to a video / audio recording / reproducing apparatus in which a hard disk device and a DVD device are combined.
[0002]
[Prior art]
Currently, there are two types of broadcasting: digital high-definition broadcasting (HD broadcasting) with high image quality and high sound quality, and digital standard broadcasting (SD broadcasting) equivalent to terrestrial broadcasting. In the MPEG systems in these broadcasting systems, two types of systems are defined so as to be applicable to a wide range of applications. One is a program stream (hereinafter, referred to as PS), and constitutes only one program in one stream. The other is a transport stream (hereinafter, referred to as TS), which is composed of a plurality of programs in one stream.
[0003]
A hard disk, a DVD, a video tape, or the like is used as a recording medium for recording the broadcast content. In the recording system for DVD, adoption of PS is standardized as an MPEG system in consideration of DVD compatibility. On the other hand, since a hard disk as a recording medium is fixedly installed in the apparatus, compatibility with the recording medium is out of consideration. Therefore, PS or TS is not standardized.
[0004]
A recording / reproducing apparatus compatible with digital broadcasting has a digital tuner mounted on a single device such as an HDD device or a DVD device, selects a specific TS with the digital tuner, and, for example, CH-A (channel A) in the specific TS. , CH-B, and CH-C are extracted and recorded.
[0005]
As a conventional technique of a multifunction device including a hard disk device and a DVD device, as shown in FIG. 7, an HDD controller 73 (hard disk device) and a DVD controller 75 (DVD device) are provided. The converted video signal is converted into the PS format by the PS converter 77, and the entire inside of the recording / reproducing apparatus is processed in a unified manner by the PS. That is, the signal converted to PS by the PS converter 77 is recorded on the DVD 76 in the PS format in accordance with the MPEG system standard, and the hard disk 74 is also recorded by the HDD controller 73 in the PS format.
[0006]
The PS format signal reproduced from the DVD 76 or the hard disk 74 is decoded by an MPEGPS decoder 78 and output to an OSD (On Screen Display) processing circuit 79. As shown, in addition to the analog tuner 71, an AUX input unit 72 to which an external signal from a VTR or the like is input is provided.
[0007]
Further, it is disclosed that, in a multifunction device having a configuration in which a DVD-RAM device and a hard disk device are used in combination, a broadcast program is selected through an analog tuner, then converted into a digital signal and recorded in both recording media in the same format. (For example, see Patent Document 1).
[0008]
[Patent Document 1]
JP-A-2002-109831
[0009]
[Problems to be solved by the invention]
Although the prior art shown in FIG. 7 and Patent Literature 1 described above are multifunction devices including a hard disk device and a DVD device, they are all multifunction devices equipped with an analog tuner and are not compatible with digital broadcasting. In addition, the same stream (PS) is used as a device, and a digital tuner cannot be mounted on a multifunction device to record a digital broadcast.
[0010]
An object of the present invention is to enable recording of an HD broadcast such as a BS digital broadcast on a hard disk and a DVD in a composite device including a hard disk device and a DVD device. In addition, a function of reproducing a signal recorded on a hard disk and recording in real time on a DVD while watching the contents in a time-shifted manner, a function of switching recording when the remaining capacity of the hard disk and the DVD that can be recorded is reduced, and a function of duplicating recording on the hard disk and the DVD. It is an object of the present invention to provide a device capable of improving the usability by realizing a function of erasing existing contents, a function of grasping an operation state of the multifunction device to save power, and a function of recording a recording reservation program to a hard disk to the end. .
[0011]
[Means for Solving the Problems]
The present invention relates to a digital broadcast tuner for receiving a digital high-definition (HD) broadcast, a hard disk controller and a DVD controller for recording and reproducing an output signal from the digital broadcast tuner, and a digital high-definition (HD) signal for a digital standard (SD) signal. An HD-SD converter that converts the signal into a transport stream (TS) format output from the digital broadcast tuner on a hard disk in a TS format, and converts the TS format signal recorded on the hard disk into The data is reproduced and input to the HD-SD converter, and the converted SD signal is converted into a program stream (PS) signal and recorded on a DVD.
[0012]
Also, a digital broadcast tuner for receiving a digital high definition (HD) broadcast, a hard disk controller and a DVD controller for recording and reproducing an output signal from the digital broadcast tuner, and converting a digital high definition (HD) signal to a digital standard (SD) signal And a transport stream (TS) format signal output from the digital broadcast tuner is recorded on a hard disk in a TS format, and a TS format signal recorded on the hard disk is reproduced. In addition, a monitor signal is output via a first demultiplexer (DEMUX) and a first MPEGTS decoder for time shift viewing, and a transport stream (TS) format signal output from the digital broadcast tuner is converted to a second signal. De Multiplep And input to the HD-SD converter via a DEMUX and a second MPEGTS decoder, convert the converted SD signal into a signal in a program stream (PS) format, and record the signal on the DVD in real time. It is.
[0013]
Further, a digital broadcast tuner for receiving a digital high definition (HD) broadcast, a hard disk controller and a DVD controller for recording and reproducing an output signal from the digital broadcast tuner, and a digital high definition (HD) signal converted into a digital standard (SD) signal And a remaining capacity detecting unit for detecting a remaining capacity that can be recorded on the hard disk, and a transport stream (TS) format signal output from the digital broadcast tuner is transmitted to the hard disk in a TS format. It records and converts the transport stream (TS) format signal output from the digital broadcast tuner into an SD signal based on the detection result of the remaining capacity detection unit, and converts the converted SD signal into a program stream (PS) D to convert to format signal and record It is intended to switch the D recording.
[0014]
Further, instead of switching the recording from the hard disk recording to the DVD, the recording is switched from the DVD recording to the hard disk recording based on the detection result of the remaining capacity detection unit.
[0015]
The content list extracting unit further includes a content list extracting unit that extracts a list of contents recorded on the hard disk and the DVD, and a copy history managing unit that detects and manages the history of the content copied from the hard disk to the DVD. Based on the copy history management section information, the content that is redundantly recorded on the hard disk and the DVD is selected, and the content that is redundantly recorded on the hard disk is deleted.
[0016]
Further, a media detection unit for detecting the mounting or non-mounting of the DVD, and an MPU having a reservation management function for recording and recording a digital broadcast are provided. The operation status of the DVD system is grasped, and power saving is performed in a non-operating hard disk system and / or a DVD system.
[0017]
Further, a remaining capacity detection unit that detects a remaining capacity that can be recorded on the hard disk, a partial TS converter that converts a TS format signal output from the digital broadcast tuner into a partial TS signal, and converts the partial TS signal to an SD. An HD-SD converter for conversion, and an MPU having a recording progress management function based on the reserved recording amount and the remaining hard disk capacity, and based on the control of the MPU, the partial TS converter and HD-SD conversion The data is recorded on the hard disk via a device or via the partial TS converter.
[0018]
The present invention adopts a mixed type of using TS as a stream format to be recorded on a hard disk and using PS as a stream format to be recorded on a DVD when HD broadcast is received, and adopting HD-SD conversion. HD broadcasts can be recorded on DVDs. In addition, while viewing the TS signal from the HDD in a time-shifted manner, it is also possible to perform HD-SD conversion in real time and record it on a DVD. Further, it is possible to detect the remaining HDD capacity and seamlessly connect the input video signal across the HDD and the DVD.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
A video signal recording / reproducing apparatus according to an embodiment of the present invention will be described below in detail with reference to the drawings. FIGS. 1 to 6 are diagrams showing the overall configuration of a video signal recording / reproducing apparatus according to the first to sixth embodiments of the present invention and signal formats handled.
[0020]
Here, 1 is a digital tuner, 2 is an AUX input unit, 3 is a hard disk controller, 4 is a hard disk, 5 is a DVD controller, 6 is a DVD (digital versatile disk), 7 is a DEMUX (demultiplexer), 8 is an MPEGTS decoder, 9 is an MPEGTS encoder, 10 is an HD-SD converter, 11 is a PS converter, 12 is an MPEGPS decoder, 13 is an OSD processing unit, 14 is a content processing unit, 15 is a remaining capacity detection unit, 16 is a content list extraction unit, 17 is a copy history management unit, 18 is a Partial TS converter (partial TS converter), 19 is an HD-SD converter, 20 is an MPU, 21 is output switching, 22 is power management, 23 is media detection, and 24 is operation Means, 30 is an MPU (with reservation management function), 40 is an MPU (recording progress management With functional functions).
[0021]
The first embodiment of the present invention shown in FIG. 1 is a composite device including a hard disk controller 3 (hard disk device) and a DVD controller 5 (DVD device), and further includes a video signal recording device equipped with a digital tuner 1. It is a playback device. The digital tuner 1 can receive a digital broadcast in the TS format. When a specific TS is selected, the specific TS includes CH-A (channel A), CH-B, CH-C.CH corresponding to the broadcast program. ··It is included. The output signal from the digital tuner 1 is a TS for digital high-definition broadcasting (HD broadcasting), which is the same as the incoming received radio wave (without the need for signal form conversion processing), and this TS is used as it is by the HDD controller. 3 is recorded on the hard disk 4. Further, an output signal from the digital tuner 1 is input to a DEMUX (demultiplexer) 7, a specific channel (for example, CH-B) in a specific TS is separated by the DEMUX 7, and only this channel is recorded on the hard disk 4. You can also.
[0022]
Further, a recording path to the DVD 6 will be described. A specific channel is selected by the DEMUX 7 from the TS corresponding to the HD broadcast, which is an output signal from the digital tuner 1, and the selected TS is converted into a digital standard broadcast (SD broadcast) signal by the HD-SD converter 10. . The reason for providing the HD-SD converter 10 is that, depending on the type and type of DVD, the HD signal exceeds the band that can be read from and written to DVD, and cannot be recorded on DVD. The output signal of the HD-SD converter 10 is converted into a signal in the PS format by the PS converter 11, conforms to the MPEG standard, and is recorded on the DVD 6 by the DVD controller 5 by the PS. The above-described conversion of the signal form and the signal path enable the HD broadcast to be recorded on the DVD 6. As a video signal to be recorded on the hard disk 4 and / or the DVD 6, instead of a signal from the digital tuner 1, for example, a signal is input from a VTR (not shown) to the AUX input unit 2 and is converted into a TS format by the MPEGTS encoder 9. May be used.
[0023]
In order to reproduce the video signal recorded on the hard disk 4 or the DVD 6, the TS signal recorded on the hard disk 4 is read by the hard disk controller 3 and decoded by the MPEG TS decoder 8 as one signal path. The PS signal recorded on the DVD 6 as another signal path is read by the DVD controller 5, decoded by the MPEGPS decoder 12, and sent to the OSD processing unit 13 as another signal path. The signal is processed, and the video signal is output to the monitor.
[0024]
Further, a content management unit 14 is provided in the configuration shown in FIG. The content management unit 14 obtains, from a TS or a PS, management information of a content recorded on the hard disk 4 or the DVD 6, specifically, for example, a broadcast program, and stores and controls the content. The content management unit 14 may be built in the hard disk 4 or another memory.
[0025]
As described above, in the first embodiment, when receiving an HD broadcast, a digital tuner is used, and a signal format using a TS as a recording format on an HDD and a PS using a recording format on a DVD is a mixed type. By adopting HD-SD conversion, an HD broadcast is converted into an SD signal and can be recorded on a DVD 6.
[0026]
The method of using the hard disk 4 and the DVD 6 will be described. The HD broadcast is recorded on the hard disk 4 in consideration of the characteristics such as the large recording capacity of the hard disk and the exchangeability of the medium of the DVD. When the remaining recording amount runs out or becomes low (can be managed by the content management unit 14), the remaining broadcast program recorded on the hard disk 4 is recorded on the DVD 6. Those recorded once on the hard disk 4 but determined not to be viewed in the future (determined from the management information of the content management unit) are deleted from the hard disk 4 to secure free space on the hard disk 4. In addition, those that are frequently viewed are left in the HDD 4, and those that are viewed only occasionally are recorded on the DVD 6 again and made into a library. As described above, the recording capacity of the hard disk can be secured by re-recording the data from the hard disk to the DVD or erasing the data from the hard disk.
[0027]
Next, a second embodiment of the present invention shown in FIG. 2 will be described. A feature of the configuration of FIG. 2 is that the DEMUX and the MPEGTS decoder shown in FIG. ▼ 8-2) The other components such as the digital tuner 1, the hard disk 4, the DVD 6, the HD-SD converter 10 and the connection relation between them are the same as those in FIG.
[0028]
In FIG. 2, as a first signal path, a specific TS (including CH-A, CH-B, CH-C, etc.) selected by the digital tuner 1 is stored in the hard disk 4 as it is in the TS format (CH -A, CH-B, CH-C, etc.). No DEMUX and MPEGTS encoders are used in this signal path.
[0029]
As a second signal path, the TS from the digital tuner 1 passes through the DEMUX (1) (7-1) and the MPEG TS decoder (1) (8-1), and the HD-SD converter 10 and the PS converter 11 For example, other specific channels are recorded on the DVD 6 except for the CH-A.
[0030]
In addition, as a third signal path, the TS recorded on the hard disk 4 is reproduced and, for example, the CH-A is output via the DEMUX 2 (7-2) and the MPEG TS encoder 2 (8-2). To watch.
[0031]
The operation of the second embodiment will be described. HD broadcasting is selected by the digital tuner 1, the TS of the HD broadcasting is recorded in the HDD in the same signal format as it is, and at the same time, the A specific channel is separated, HD-SD converted, PS converted, and recorded on DVD6. Next, the TS recorded on the hard disk 4 is reproduced at time intervals (reproducing a signal to be time-shifted for viewing), and a channel different from the DVD recording channel is separated by DEMUX 2-7-2. Watch. That is, although the TS from the hard disk 4 to be time-shifted and viewed and the original stream recorded on the DVD 6 are the same TS, the contents of the same TS have a time difference. Since it is a channel, two systems of DEMUX and MPEG TS decoders are required to process each TS. According to the configuration of the second embodiment, the TS signal from the hard disk 4 is time-shifted and watched, while HD-SD conversion is performed in real time and recorded on the DVD 6.
[0032]
As described above, in the second embodiment, in order to simultaneously realize the time-shift viewing of the content and the recording on the DVD 6, two MPEGTS decoders are provided, and one MPEGTS decoder is used for the time-shift viewing from the hard disk 4. It is used for decoding, and the other MPEGTS decoder is used for decoding for recording on DVD6.
[0033]
In the above description, an example is described in which a channel for time-shift viewing from the hard disk 4 and a channel for recording on the DVD 6 are different from each other. However, the present invention is not limited to this, and it is naturally possible to record the same channel on the DVD 6 while watching the time shift. Further, in the above description, the recording on the DVD 6 is described in which the TS signal from the digital tuner 1 is recorded in real time through the MPEGTS decoder {circle around (1)}. However, the present invention is not limited to this. It is also possible to use the MPEGTS decoder (2) for time-shift viewing and to use the DEMUX (1) and the MPEGTS decoder (1) for recording on the DVD 6 on the other side.
[0034]
Next, a third embodiment of the present invention shown in FIG. 3 will be described. The configuration of FIG. 3 is characterized by a remaining capacity detection unit 15 for detecting the remaining capacity that can be recorded on the hard disk 4 and the DVD 6 from the respective controllers 3 and 5, and an MPU 20 for controlling the HDD controller 3, the DVD controller 5 and the content management unit 14. The other components such as the digital tuner 1, the hard disk 4, the DVD 6, the HD-SD converter 10, and the connection relation between them are the same as those in FIG.
[0035]
In FIG. 3, when the remaining capacity that can be recorded on the hard disk 4 runs out, or when the remaining capacity decreases, the remaining capacity of the hard disk 4 is detected by the remaining capacity detection unit 15 through the HDD controller 3. The detection result is output to the MPU 20. The MPU 20 controls the HDD controller 3 and the DVD controller 5, and transfers the TS signal from the digital tuner 1 or the MPEG TS encoder 9 from the signal path for recording on the hard disk 4 to the signal path for recording on the DVD 6. Switch to and record. Therefore, the video signal input to the video signal recording / reproducing apparatus can be seamlessly connected. The recording path to the DVD 6 is, in order, the DEMUX 7, the MPEGTS decoder 8, the HD-SD converter 10, the PS converter 11, the DVD controller 5, and the DVD 6. Further, information at the time of switching is recorded in the content management unit 14, and reproduction is controlled using this information at the time of reproduction. In place of the connection from the hard disk to the DVD, the connection from the DVD to the hard disk may be performed and recorded as a series of recorded contents.
[0036]
Next, a fourth embodiment of the present invention shown in FIG. 4 will be described. The configuration of FIG. 4 is characterized in that a content list (broadcast channel, program name, etc.) of the content recorded on the hard disk 4 and the DVD 6 is extracted from the respective controllers 3 and 5, and the content is extracted from the hard disk 4 to the DVD 6. And a MPU 20 for controlling the HDD controller 3, the DVD controller 5 and the copy history management unit 17 are additionally provided. , The HDD 4, the DVD 6, the HD-SD converter 10 and the like, and their connection relations are the same as in FIG. The copy history management unit 17 acquires copy history information by detecting a signal input from the hard disk 4 and recorded on the DVD 6 in a circuit configuration surrounded by a dotted line frame in FIG.
[0037]
In FIG. 4, the content recorded on the hard disk 4 and the DVD 6 is managed by the content list extracting unit 16 (the content list of the mounted DVD is extracted), and the content copied from the hard disk 4 to the DVD 6 is copied by the copy history managing unit 17. Manage with. The MPU 20 includes: copy history information input from the copy history management unit 17;
The content list information input from the content list extraction unit 16 is compared, and the content recorded redundantly on the hard disk 4 and the DVD 6 is selected, and the content redundantly recorded on the DVD is deleted from the hard disk 4. Thereby, the recording capacity of the hard disk 4 can be secured, and a new HD broadcast can be recorded on the hard disk 4.
[0038]
Next, a fifth embodiment of the present invention shown in FIG. 5 will be described. The configuration of FIG. 5 is characterized in that a medium (medium) detection unit 23 for detecting whether or not the DVD 6 is mounted, an MPU 30 including a reservation management unit for recording reservation of digital broadcasting, and an operation unit for recording reservation 24, a power management unit 22 for stopping the operation of unused circuit components, and an output switching unit 21 for switching the reproduction output from the hard disk 4 and the DVD 6. The components such as the digital tuner 1, the hard disk 4, the DVD 6, and the HD-SD converter 10 and their connections are the same as in FIG.
[0039]
In FIG. 5, under the control of the MPU 30, the reproduction output from the hard disk 4 or the DVD 6 is switched to either one and output to the monitor. For example, when monitoring the reproduction output from the hard disk 4, the MPU 30 detects the reproduction of the hard disk and stops the operation of the dotted line frame A in FIG. (For example, shut off the power supply). If the DVD 6 is not mounted according to the detection result of the media detecting unit 18, the operation of the dotted frame A, which is the signal system of the DVD, is stopped. Further, when the apparatus is not operated until a predetermined time reserved by the recording reservation management, the operation of the hard disk system indicated by a dotted frame B in FIG. 5 is stopped. As to which circuit is stopped, various modes can be considered depending on conditions and restrictions given to the apparatus. In short, the operation status of the hard disk system and the DVD system is grasped, and the power consumption of one or both systems is stopped or the power is saved in a power saving mode to suppress the power consumption of the entire apparatus. The configuration in FIG. 5 is based on the configuration in FIG. 1, but is not limited thereto, and the present embodiment is applicable to the configurations in FIGS. 2 to 4.
[0040]
Next, a sixth embodiment of the present invention shown in FIG. 6 will be described. The feature of the configuration of FIG. 6 is that a partial TS converter (partial TS converter) 18 that converts an HD-compatible TS signal output from the digital tuner 1 into a partial TS, and an HD that converts the partial TS signal into SD. The digital tuner 1 further includes an SD converter 19 and an MPU 40 having a function of managing the recording progress to the HDD based on the recording amount of the program reserved for recording and the remaining capacity of the hard disk. , The hard disk 4, the DVD 6, the HD-SD converter 10 and the like, and their connection relations are the same as in FIG.
[0041]
The operation of the sixth embodiment shown in FIG. 6 will be described. A specific TS signal selected and output by the digital tuner 1 includes a plurality of programs such as broadcast programs CH-A, CH-B, and CH-C. In the configuration shown in FIG. 1, all of the plurality of program channels are recorded on the hard disk 4 as they are in a TS format signal. In the present embodiment, based on the recording amount of the program reserved for recording and the detected remaining capacity of the hard disk, the MPU 40 determines whether or not the TS including a plurality of program channels can be stored in the hard disk. According to the management result, the TS signal is converted into a TS including a specific program channel (not all channels, but some channels (one or more)) according to the management result. This is recorded, or the HD of some channels is converted to SD, and the information amount is further reduced and recorded.
[0042]
Therefore, even while the TS signal output from the digital tuner 1 is being recorded on the hard disk 4 (including the start of recording), the HD signal of the TS to be recorded is determined from the information on the progress management status of the MPU 40. If it is determined that the signal cannot be recorded on the hard disk until the end, the recording format of the signal is converted to a partial TS of HD, and the converted partial TS of HD is further converted to a partial TS of SD so that the signal can be recorded on the hard disk. Is what you do. Whether to operate the Partial TS converter (partial TS converter) 18 or the HD-SD converter 19 is determined by the information on the progress management status of the MPU 40. Note that the MPU 40 operates both or one of the converters 18 and 19 and also controls the HD-SD converter 10. The sixth embodiment can also be applied to the device of the third embodiment described above. As described above, according to the sixth embodiment, it is possible to realize that the program reserved for recording can be completely recorded on the hard disk.
[0043]
【The invention's effect】
According to the present invention, when recording an HD broadcast, a TS is used as a stream format to be recorded on a hard disk, a PS is used as a stream format to be recorded on a DVD, and HD-SD conversion is performed to record an HD broadcast on a DVD. Can be.
[0044]
In addition, while watching the TS signal from the hard disk in a time-shifted manner, it is possible to perform HD-SD conversion in real time and record it on a DVD.
[0045]
Further, by detecting the remaining capacity of the hard disk, the input video signal can be seamlessly connected across the hard disk and the DVD.
[0046]
Also, by managing the copy history from the hard disk to the DVD and erasing unnecessary contents from the hard disk, the recording capacity of the hard disk can be secured.
[0047]
In addition, the operating status of the hard disk system and the DVD system can be grasped, and power consumption of one or both systems can be reduced to reduce power consumption.
[0048]
If it is determined that the TS HD signal output from the digital tuner cannot be recorded on the hard disk until the end, the signal recording format is converted from HD TS to partial TS or partial TS to SD. By recording the data, the data can be recorded on the hard disk until the end.
[Brief description of the drawings]
FIG. 1 is a diagram showing an overall configuration of a video signal recording / reproducing apparatus according to a first embodiment of the present invention and a signal format to be handled.
FIG. 2 is a diagram showing an overall configuration of a video signal recording / reproducing apparatus according to a second embodiment of the present invention and a signal format handled.
FIG. 3 is a diagram showing an overall configuration of a video signal recording / reproducing apparatus according to a third embodiment of the present invention and a signal format handled.
FIG. 4 is a diagram showing an overall configuration of a video signal recording / reproducing apparatus according to a fourth embodiment of the present invention and a signal format handled.
FIG. 5 is a diagram showing an overall configuration of a video signal recording / reproducing apparatus according to a fifth embodiment of the present invention and a signal format handled.
FIG. 6 is a diagram showing an overall configuration of a video signal recording / reproducing apparatus according to a sixth embodiment of the present invention and a signal format handled.
FIG. 7 is a diagram showing an overall configuration of a video signal recording / reproducing apparatus and a signal format handled in the related art.
[Explanation of symbols]
1 Digital tuner
2 AUX input section
3 Hard disk controller
4 Hard disk
5 DVD controller
6 DVD (Digital Versatile Disc)
7 DEMUX (Demultiplexer)
7-1 DEMUX 1
7-2 DEMUX 2
8 MPEGTS decoder
8-1 MPEGTS decoder (1)
8-2 MPEGTS decoder (2)
9 MPEGTS encoder
10 HD-SD converter
11 PS converter
12 MPEGPS decoder
13 OSD processing circuit
14 Content Management Department
15 Remaining capacity detector
16 Content list extraction unit
17 Copy history management unit
18 Partial TS converter (partial TS converter)
19 Partial HD-SD converter
20 MPU
21 Output switching
22 Power Management
23 Media detection
24 operation means
30 MPU (with reservation management function)
40 MPU (with recording progress management function)

Claims (8)

A digital broadcast tuner for receiving a digital high definition (HD) broadcast, a hard disk controller and a DVD controller for recording and reproducing an output signal from the digital broadcast tuner, and an HD for converting a digital high definition (HD) signal to a digital standard (SD) signal -An SD converter,
A transport stream (TS) format signal output from the digital broadcast tuner is recorded on a hard disk in a TS format,
A TS format signal recorded on the hard disk is reproduced and input to the HD-SD converter, and the converted SD signal is converted into a program stream (PS) format signal and recorded on a DVD. Video / audio signal recording / reproducing device. A digital broadcast tuner for receiving a digital high definition (HD) broadcast, a hard disk controller and a DVD controller for recording and reproducing an output signal from the digital broadcast tuner, and an HD for converting a digital high definition (HD) signal to a digital standard (SD) signal -An SD converter,
A transport stream (TS) format signal output from the digital broadcast tuner is recorded on a hard disk in a TS format,
The TS format signal recorded on the hard disk is reproduced, and is monitored and output through a first demultiplexer (DEMUX) and a first MPEG TS decoder for time shift viewing.
A transport stream (TS) format signal output from the digital broadcast tuner is input to the HD-SD converter via a second demultiplexer (DEMUX) and a second MPEG TS decoder, and the converted SD A video / audio signal recording / reproducing apparatus which converts a signal into a signal of a program stream (PS) format and records the signal on the DVD in real time. A digital broadcast tuner for receiving a digital high definition (HD) broadcast, a hard disk controller and a DVD controller for recording and reproducing an output signal from the digital broadcast tuner, and an HD for converting a digital high definition (HD) signal to a digital standard (SD) signal An SD converter, and a remaining capacity detection unit that detects a remaining capacity that can be recorded on the hard disk;
A transport stream (TS) format signal output from the digital broadcast tuner is recorded on a hard disk in a TS format,
A transport stream (TS) format signal output from the digital broadcast tuner is converted into an SD signal based on a detection result of the remaining capacity detection unit, and the converted SD signal is converted into a program stream (PS) format signal. A video / audio signal recording / reproducing apparatus characterized by switching to DVD recording for converting and recording to DVD. The video / audio signal recording / reproducing device according to claim 3,
A video / audio signal recording / reproducing apparatus which switches from DVD recording to hard disk recording based on a detection result of a remaining capacity detection unit, instead of switching from recording to recording on a DVD from a hard disk. The video / audio signal recording / reproducing device according to claim 1,
A content list extraction unit for extracting a list of contents recorded on the hard disk and the DVD, and a copy history management unit for detecting and managing the history of the content copied from the hard disk to the DVD;
A video / audio signal that selects content that is redundantly recorded on the hard disk and the DVD based on the content list extraction unit and the copy history management unit information and deletes the content that is redundantly recorded on the hard disk; Recording and playback device. The video / audio signal recording / reproducing device according to any one of claims 1 to 4,
A medium detection unit for detecting the mounting or non-mounting of the DVD; and an MPU having a reservation management function for recording a digital broadcast, and a hard disk system and a DVD system based on the media detection unit output information and the MPU output information. A video / audio signal recording / reproducing apparatus characterized in that the operation status of the video / audio signal is recognized and power saving is performed in a non-operating hard disk system and / or DVD system. The video / audio signal recording / reproducing device according to claim 1 or 2,
A remaining capacity detection unit that detects a remaining capacity that can be recorded on the hard disk; a partial TS converter that converts a TS format signal output from the digital broadcast tuner into a partial TS signal; and converts the partial TS signal into SD. An HD-SD converter, and an MPU having a recording progress management function based on the reserved recording amount and the remaining hard disk capacity,
A video / audio signal recording / reproducing apparatus which records on the hard disk via the partial TS converter and the HD-SD converter or via the partial TS converter based on the control of the MPU. The video / audio signal recording / reproducing device according to claim 3 or 4,
A partial TS converter for converting an HD TS format signal output from the digital broadcast tuner to a partial TS signal, an HD-SD converter for converting the partial TS signal to SD, a recording reservation reserved for recording and a hard disk MPU with recording progress management function from remaining capacity
A video / audio signal recording / reproducing apparatus which records on the hard disk via the partial TS converter and the HD-SD converter or via the partial TS converter based on the control of the MPU.

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