JP2003134456A - Device and method for digital recording, program making computer actualize the digital recording method, and computer-readable recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a digital recording device not restart recording recordable contents even when the recordable contents are inputted since a storage area is wasted or the recording is stopped by recording blank data to a recording medium once copy inhibition information is inputted during the recording of the contents. SOLUTION: A copy control information detection part 102 detects copy control information showing whether header information of contents can be copied or is inhibited from being copied. A CPU 103 instructs the D-VHS control part 10 to temporarily stop the recording once receiving the copy inhibition information while a D-VHS control part 104 is recording the contents on a D-VHS tape 105 and also instructs the D-VHS control part 104 to restart the recording when receiving information indicating that the information can be copied during the temporary stop. An LED 109 is made to illuminate under the control of an LED control part 108 to let a user know that the recording is temporarily stopped according to the copy inhibition information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital recording device for recording digital data.

[0002]

2. Description of the Related Art Recently, in order to protect the copyright of contents transmitted by TV broadcasting or the like, information which permits or prohibits copying is also transmitted. In the conventional digital recording device, when the information prohibiting the copying is received, one of the following processes is performed.

The first process is to discard the received content and record empty data in the recording medium. Then, when the information permitting copying is received, the recording process of the received content is restarted. To do. In the second process, the recording process of the content being recorded is completed and the digital recording device is stopped.

[0004]

By the way, in the case of the first processing, the recording area of the recording medium is unnecessarily consumed, and the user does not make a copy for the first time after reproducing the recording medium. You will recognize that.
In the case of the second process, when the information permitting copying is received again, the digital recording device is in the stopped state and the recording of the content cannot be resumed. Further, the user does not understand the reason why the digital recording apparatus is stopped, and thinks that the apparatus is malfunctioning.

In view of the above-mentioned problems, the present invention does not waste the recording area of the recording medium when the information for prohibiting copying which is transmitted for the copyright protection of the content is received, and the copying is performed later. It is an object of the present invention to provide a digital recording device capable of resuming the recording process of contents when receiving the information for permitting.

[0006]

In order to solve the above problems, the present invention provides a digital signal including a data stream containing at least one of video, audio and data via a digital transmission line, and copy control information of these data streams. And a copy control information detecting means for detecting copy control information contained in a digital signal, the digital recording apparatus having a recording means for receiving the received data stream on a recording medium. When the detected copy control information is copy prohibition information, the recording by the recording means is temporarily stopped, and when the copy control information which is the copy enable information is detected during the temporary stop, the recording by the recording means is stopped. The recording control means for restarting the recording is provided.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a digital recording apparatus according to the present invention will be described below with reference to the drawings. (One Embodiment) FIG. 1 is a block diagram of one embodiment of a digital recording system including a digital recording apparatus according to the present invention.

This digital recording system comprises a digital broadcast receiver 10, a display 20, and a digital recording device 100. The digital broadcast receiver 10, the display 20, and the digital recording device 100 are connected to each other via a digital transmission line 30. The digital recording apparatus 100 includes an input control unit 101, a copy control information detection unit 102, a CPU 103, a D-VHS tape 105, a deck state holding storage unit 106, a recording log file 107, an LED control unit 108, LED10
9, an output control unit 110, an OSD 111, and an encoder 112. The D-VHS control unit 104 is connected to the input control unit 101 and the output control unit 110 by a transport stream bus 113.

The digital transmission line 30 is, for example, IEEE.
The digital broadcast receiver 10 is composed of a 1394 bus.
/ F11, the I / F 21 of the display 20, the input control unit 101 and the output control unit 11 of the digital recording apparatus 100.
0 is configured in the IEEE 1394 system. The digital broadcast receiver 10 selects a required transport stream from the plurality of transport streams received by the antenna 12. The I / F 11 embeds a transport stream packet in an Isochronous packet of IEEE 1394, and transmits it to the display 20 and the digital recording device 100 via the digital transmission path 30.

At this time, the digital broadcast receiver 10 interprets the copy information recorded in the selected transport stream to generate copy control information (CCI), and I
/ F11 is an EMI (encryption mode index) in the header of the Isochronus packet.
CCI is recorded in the area (ator). Where CCI
Is information that allows or prohibits copying of the content recorded in the transport stream.
It consists of 2 bits. "00" can be freely copied, "1"
“0” indicates that copying is possible only once, “01” indicates that copying is no longer possible, and “11” indicates that copying is prohibited.

Further, the digital broadcast receiver 10 uses the I / F 11 in order to know the operating state of the digital recording apparatus 100.
From the digital recording device 100 to the input control unit 101 via the digital transmission path 30 of the device status inquiry request packet. The I / F 11 is the digital recording device 10.
A device state response packet is received from 0. The digital broadcast receiver 10 displays the response content of the received device status.

The display 20 includes a transport stream decoder, a reproducing unit, a CRT and the like. I /
When the F21 receives the Isochronous packet output from the I / F11 of the digital broadcast receiver 10 via the digital transmission line 30, the F21 receives the Isochronous.
The transport stream packet embedded in the packet is extracted, and the transport stream is output to the transport stream decoder. The transport stream decoder decodes the transport stream and outputs it to the reproducing unit. The reproducing unit reproduces the content included in the decoded transport stream and outputs it to a CRT or the like.

Input controller 10 of digital recording apparatus 100
The reference numeral 1 designates an Isochronous packet output from the I / F 11 of the digital broadcast receiver 10 as a digital transmission line 3
Receive via 0. The input control unit 101 is Isoch
The transport stream packet is extracted from the ronus packet, and the transport stream is output to the D-VHS control unit 104 via the transport stream bus 113. In addition, the input control unit 101 uses the Isoc
The header of the hornus packet is extracted and notified to the copy information detection unit 102.

When the input control unit 101 receives a device status inquiry request packet from the digital broadcast receiver 10 via the digital transmission line 30, the input control unit 101 notifies the CPU 103 of that fact. When notified of the header of the Isochronus packet notified from the input control unit 101, the copy control information detection unit 102 reads the CCI recorded in the EMI area in the header.

The CPU 103 uses the copy control information (CC
I) The table is stored. FIG. 2 is a diagram showing an example of the CCI table. In the left column of the CCI table 201, the CCI value 202
Is recorded, and the corresponding copy condition 203 is displayed in the right column.
Is recorded. The CPU 103 also stores a deck status table of the digital recording device 100.

FIG. 3 is a diagram showing an example of the deck state table. The deck status table 301 includes the digital recording device 100.
The deck state 302, which is the operating state of, and the numerical value 303 corresponding thereto are recorded. The CPU 103 grasps the current operating state of the digital recording apparatus 100 as the corresponding numerical value, and stores the numerical value in the deck state holding storage unit 106.

For example, when the CPU 103 receives a recording instruction of the content of the transport stream received from the input operation unit (not shown), the D-VHS control unit 104.
And a deck state storage unit 106
"11" is stored in. Also, record log file 10
The recording start and the date and time, that is, the date and time are recorded in 7.

The CPU 103 has a copy control information detecting section 1
When the CCI value is acquired from 02, the copy control information table 20
In accordance with 1, the D-VHS control unit 104 is notified that the CCI value is “0.
When it is “0” or “10”, the recording (recording) instruction is notified, and when it is “01” or “11”, the recording prohibition is notified. When the recording instruction is notified and the CCI value is “10”, the content Along with the recording, the recording of the copy control information of "01" that "no more copying is possible" is instructed. This prohibits secondary copying.

Further, when the CPU 103 notifies the D-VHS controller 104 of the recording prohibition, it records the date and time and the start of the recording prohibition period in the recording log file 106. At the same time, the LED control unit 108 is instructed to display that copying is prohibited, and the deck state storage unit 106 is also provided.
The deck state 303 stores the numerical value "14" corresponding to the recording suspension for waiting for the copy inhibition cancellation.

Further, the CPU 103 indicates that the video recording is temporarily stopped while the copy prohibition is released and the current time is set in the OSD 11.
1 is instructed to generate a display screen. CPU
After the D-VHS control unit 104 is notified of the recording prohibition, that is, when the copy control information detection unit 102 notifies the D-VHS control unit 104 of the CCI value of “00” or “10”, the D-VHS control unit 103 receives the notification. The control unit 104 is notified of the resumption of recording. At the same time, the date and time and the end of the recording prohibition period are recorded in the recording log file 107. Further, since the deck state is recorded in the deck state storage unit 106, "11" is stored. Further, the LED control unit 108 ends the display indicating that the copy prohibition cancellation waiting recording is temporarily stopped.

The CPU 103 is a digital recording device 100.
Even when the operating state of the deck is changed by a user operation from an input operation unit (not shown), the deck state holding storage unit 106
The numerical value corresponding to the state is stored in the recording log file 107 and the date and time and the recording state are recorded in the recording log file 107. When all the entries of the recording log information recorded in the recording log file 107 are recorded, they are deleted in order from the oldest recording state.

When the CPU 103 receives a recording stop instruction by a user operation, it records the date and time and the recording end in the recording log file 107, and then reads the recording state of the recording log information from the latest recording to the oldest recording. It is determined whether or not there is a recording prohibition period between the start of recording and the end of recording. When there is a recording prohibition period, the OSD 111 is notified of the prohibition period and the total recording time, and an instruction is made to generate a recording history display screen indicating that the recording prohibition period was present during recording.

When there is no recording prohibition period,
The OSD 111 is notified of the total recording time, and is instructed to generate a display screen of the recording history indicating that the recording has been normally performed. Also, CP
Upon receiving the notification of the device state inquiry request from the input control unit 101, the U 103 notifies the output control unit 110 of the numerical value stored in the deck state holding storage unit 106, and instructs the digital broadcast receiver 10 to respond. To do.

The D-VHS control unit 104 is a recording control unit, and is composed of, for example, a D-VHS control microcomputer, and C
According to the recording instruction of the PU 103, the D-VHS tape 105
The contents of the transport stream input from the input control unit 101 are recorded in. When receiving the output instruction, the contents recorded on the D-VHS tape 105 are read out, and the transport stream bus 113 is read.
To the output control unit 110 via.

The D-VHS controller 104 is a CPU
Upon receiving a recording suspension instruction from the CCI value from 103, recording of the content input from the input control unit 101 via the transport stream bus 113 is suspended. Immediately after the recording is temporarily stopped, a display screen indicating that the temporary stop by the copy control information generated by the OSD 111 encoded by the encoder 112 is started is recorded on the D-VHS tape 105 for a predetermined time, for example, 5 seconds.
Thereafter, the D-VHS control unit 104 suspends the recording of the content until the CPU 103 gives an instruction to restart the recording based on the CCI value. When the recording restart instruction is received from the CPU 103, the recording of the content input from the input control unit 101 is restarted.

As described above, by recording the display screen (described later in FIG. 6) to the effect that the pause is started on the D-VHS tape 105, when the D-VHS tape 105 is reproduced, the user can perform copy control. It is possible to know that copying was prohibited by information. D-VHS tape 105
The contents of the transport stream are recorded under the control of the D-VHS control unit 104. Also, the OS
The display screen generated in D111 is also encoded and recorded by the encoder 112. Further, the content recorded on the D-VHS tape 105 is read by the D-VHS control unit 104.

The deck state storage unit 106 stores the current operating state of the digital recording apparatus 100 with corresponding numerical values. The recording log file 107 is composed of a non-volatile memory such as an EEPROM, and the history of the recording (recording) state of the digital recording device 100 is recorded by the CPU 103.

FIG. 4 is a diagram showing an example of recording log information stored in the recording log file 107. The recording log information 401 shows the history of the recording state of the digital recording apparatus 100, and records the date + time 402 in the left column and the recording state 403 in the right column. When the entry is full, the old record is deleted.

The LED control unit 108 is a display control unit, and upon receiving a notification from the CPU 103 that copying of the content input to the D-VHS control unit 104 is prohibited, causes the LED 109 to display that fact. . The LED control unit 108 counts the time from the start of recording and causes the LED 109 to display the time. LED
A display unit 109 displays a recording time and displays a temporary recording stop for prohibiting copying of content under the control of the LED control unit 108.

FIG. 5 shows the LED displayed on the LED 109.
It is a figure which shows an example of a display screen. LED display screen 501
A recording time 502 from the start of recording and "REC-P" 503 indicating recording suspension are displayed on the screen. Furthermore, "Copy-protec" indicating that the recording suspension is copy prohibition by the copy control information of the content
t ”504 is displayed. This notifies the user that the recording of the content input from the digital broadcast receiver 10 is prohibited.

The output control unit 110 outputs a response packet to the device status inquiry request notified from the CPU 103 to the digital broadcast receiver 10 via the digital transmission line 30. Further, when the display screen of the recording history generated by the OSD 111 is encoded and input by the encoder 112, the display 2 is displayed via the digital transmission path 30.
0 to the I / F 21. Furthermore, the D-VHS control unit 1
The content read from the D-VHS tape 105 by 04 is output to, for example, the display 20.

The OSD 111 is a D-VHS controller 104.
When there is copy prohibition information in the copy control information of the content included in the transport stream input to,
A display screen indicating that the recording of the content on the D-VHS tape is temporarily stopped is generated according to an instruction from the CPU 103. FIG. 6 is a diagram showing an example of a display screen generated in the OSD 111 when the recording suspension is started by the copy prohibition information. The display screen 601 displays a notation 602 of “Recording suspension for waiting for copy prohibition cancellation starts.” And its date and time 603. When the display screen 601 is generated, the encoder 112
It is encoded by and recorded on the D-VHS tape 105.

When the recording on the D-VHS tape is completed, the OSD 111 is instructed by the CPU 103,
Generate the display screen of the record history. FIG. 7 shows a display screen of the recording history when the recording is temporarily stopped due to the copy prohibition information. On the display screen 701, a notation 702 of “there is a recording prohibition period during recording”, the prohibition period 703, and a total recording time 704 are displayed.

When there is no temporary stop of recording due to the copy prohibition information, the notation "Normal recording" and the total recording time are displayed on the recording history display screen. When the display screen 701 is generated, it is encoded by the encoder 112 and output from the output control unit 110 to the external display 20.

The encoder 112 is composed of an MPEG2 encoder and encodes the display screen generated by the OSD 111, and the D-VHS controller 104 for a predetermined time, for example, 5 seconds.
Alternatively, it is output to the output control unit 110. The recording history display screen 701 may be directly output from the OSD 111 as analog data to the external display 20 without being encoded by the encoder 112.

Next, the operation of the present embodiment will be described with reference to FIGS.
This will be described with reference to the flowchart in FIG. First, the recording processing operation will be described with reference to the flowcharts of FIGS.
The CPU 103 waits for a recording start instruction by a user operation (S802). The date and time and the recording start, which is the recording state, are recorded in the recording log file 107 as recording log information (S804).

The CPU 103 uses the copy control information detection unit 1
The CCI value is acquired from 02 (S806). It is determined whether or not the CCI value is "00" or "10" that allows copying (S808). If it is not "00" or "10", the process proceeds to S902. When determining that copying is possible, the CPU 103 instructs the D-VHS control unit 104 to perform recording (S810). The CPU 103 sets the "recording" state in the deck state storage unit 106 (S812).

The CPU 103 determines whether or not there is an instruction to stop recording by a user operation (S814). If not, the CCI notified from the copy control information detection unit 102.
It is determined whether the value is "00" or "10" (S816). If affirmative, the process returns to S814. If not, the process proceeds to S902. In S902, the CPU 103
Instructs the D-VHS control unit 104 to suspend recording. At the same time, the LED control unit 108 is set to “Copy-pro”.
LED display screen 501 displaying "tect" 504
The ED 109 is instructed to display (S904). Further, the "copy prohibition cancellation waiting recording pause" state is set in the deck state storage unit 106 (S906). Also,
The date and time and the start of the recording prohibition period are recorded in the recording log file 107 as recording log information (S908).

Next, the CPU 103 determines whether or not there is a recording stop instruction by a user operation (S910). If yes, the process proceeds to S914, and if not, the CCI value notified from the copy control information detecting unit 102 is determined. It is determined whether copying is possible (S912). If no, the process returns to S910, and if copying is possible, the process proceeds to S914. In S914, C
The PU 103 causes the LED control unit 108 to display “Copy-pr
L on the LED display screen where the "oect" 504 display is turned off.
Instruct the ED 109 to display.

Further, the recording log file 107 is instructed to record the date and time and the end of the recording prohibition period as the recording log information (S916). The CPU 103 determines whether or not there is a recording stop instruction by a user operation (S918). If yes, the process proceeds to S818, and if not, the process returns to S810. S
At 818, the CPU 103 causes the D-VHS control unit 1
04 is instructed to stop recording.

Next, the CPU 103 records the date and time and the recording end as recording log information in the recording log file 107 (S820). Furthermore, the "stop" state is set in the deck state storage unit 106 (S822), and the process ends.
Next, the inquiry processing of the operating state of the digital recording device from the external device will be described with reference to the flowchart of FIG.

The CPU 103 waits for a device status inquiry request from an external device such as the digital broadcast receiver 10 via the input operation unit 101 (S1002). The operation state stored in the deck state storage unit 106 is read (S
1004). Next, when the CPU 103 notifies the output control unit 110 of the operating state, the output control unit 110 sets the operating state in the response packet (S1006), and sends the response packet to the requesting external device via the digital transmission line 30. The data is transmitted (S1008), and the process ends.

Next, the operation of the recording prohibition display screen process will be described with reference to the flowchart shown in FIG. The recording prohibition display screen process is performed immediately after S908 in FIG. The CPU 103 notifies the OSD 111 of the start of the recording prohibition period and the date and time (S1102).

The OSD 111 generates a display screen 601 indicating the start of the recording prohibition period (S1104). Encoder 1
12 encodes the generated display screen 601 and
-A predetermined time is output to the VHS controller 104 (S110).
6). The D-VHS control unit 104 records the encoded display screen 601 on the D-VHS tape 105 for a predetermined time (S1108), and ends the process.

Next, the operation of displaying the recording log information will be described with reference to FIG.
This will be described using the flowchart shown in FIG. Note that this processing is performed immediately after S822 in FIG. CPU10
3 reads out one of the latest record log information stored in the record log file 107 (S1202). It is determined whether or not the recording state is recording start (S1204). If not, it is determined whether the recording prohibition period has ended (S120).
6). If not, it is determined whether or not the recording prohibited period has started (S1208). If not, the recording is ended, so the date and time is stored, and then the previous record log information stored in the record log file 107 is read (S1210). It is determined whether or not the data has been read (S
1212) When completed, the process returns to S1204. If not, the process moves to S1216.

In S1206, when the recording prohibition period is over, the process proceeds to S1210. In S1208, if the recording prohibition period is started, the prohibition period is fixed.
The recording prohibited period is notified to SD111 (S1214).
In S1204, when the recording is started, the CPU 103 stores the recording end time after S1208, and therefore calculates the time difference from the recording start time and determines whether or not there is the recording prohibited period (S1216). If so, the time of the recording prohibition period is subtracted from the previously calculated time difference to obtain the recording time, and the OSD 111 is notified with the message "there was a recording prohibition period during recording" (S1218).

The OSD 111 generates a display screen 701 indicating that there is a recording prohibited period (S1220), and proceeds to S1226. If the CPU 103 determines in S1216 that there is no recording prohibition period, the CPU 103 notifies the OSD 111 together with the message "recording was successful" with the time difference calculated previously as the recording time (S1222).

The OSD 111 generates a display screen indicating that the recording was successful (S1224). Encoder 112
Encodes the display screen generated by the OSD 111 and outputs it to the output control unit 110 for a predetermined time (S122).
6). The output control unit 110 displays the encoded display screen on the I of the display 20 via the digital transmission line 30.
It is output to / F21 (S1228), and the process ends. A display screen is displayed on the display 20.

In the above embodiment, the D-VHS controller 104 is provided so as to record the contents on the D-VHS tape 105, but the recording medium is the D-VHS.
It is needless to say that the tape is not limited to the tape, but may be a DV tape, and may be a DVD-RAM, an AVHDD or the like. In this case, instead of the D-VHS control unit 104, a control unit according to each recording medium is provided.

In the above embodiment, the contents recorded on the D-VHS tape 105 by the D-VHS controller 104 are digital data included in the transport stream packet, but they are analog data contents. Even when the copy control signal is added as an analog signal, recording is temporarily stopped when the copy control signal is copy prohibited, and recording is restarted if a copy-enabled copy control signal is detected during the temporary stop. You may At this time, the analog data is AD-converted before being input to the D-VHS control unit 104.

Further, although the configuration of the digital recording apparatus is shown in FIG. 1 in the above embodiment, the functions of the respective components may be realized by a program that causes a computer to perform. Further, this program may be recorded in a computer-readable recording medium and applied to a digital recording device.

[0052]

As described above, the present invention receives and receives a digital signal including a data stream containing at least one of video, audio and data and copy control information of these via a digital transmission line. A digital recording apparatus having recording means for recording the recorded data stream on a recording medium, the copy control information detecting means detecting copy control information contained in a digital signal, and the copy control detected by the copy control information detecting means. Recording control means for temporarily stopping recording by the recording means when the information is copy prohibition information, and for restarting recording by the recording means when copy control information which is copy enable information is detected during the temporary stop It is supposed to be equipped with. With such a configuration, when the copy prohibition information is detected, the recording of the data stream on the recording medium is temporarily stopped, so that the storage area of the recording medium is prevented from being wasted.
Moreover, when the copyable information is detected during the temporary stop, the recording of the data stream on the recording medium is restarted, so that the user does not need to perform a complicated operation.

Further, when the recording control means suspends the recording by the recording means, it further comprises recording state display means for displaying that the operating state of the recording means is the suspension by the copy prohibition information. There is. With such a configuration, the user can easily know that the recording suspension is due to the copy prohibition information.

Further, when the recording control means temporarily stops recording by the recording means, a first display screen generating means for generating a first display screen indicating that fact, and the first display screen are encoded. Further, the recording means records the first display screen on a recording medium for a predetermined time after the recording control means temporarily stops recording. With such a configuration, the user can know that the recording is temporarily stopped by the copy prohibition information during the reproduction of the data stream recorded on the recording medium.

Further, the history information recording means for recording the operating state of the recording means, including the one by the user operation and the one by the copy control information, as history information, and the recording by the recording means are recorded by the user. Second display screen generating means for generating a second display screen that reads out the history information when the operation is finished, and clearly indicates a recording suspension period by the copy control information; and a second generated display screen.
An output means for outputting the display screen is further provided. With such a configuration, the user can, for example, by the second display screen displayed on the external display,
You can know that there was a pause.

Further, when an inquiry about the operating state of the recording means is received from an operating state storage means for storing the current operating state of the recording means including the operating state based on the copy control information, the operating state It further comprises a response means for reading the operating state from the storage means and responding to the external device. With such a configuration, it is possible to respond to the external device the operating state of the digital recording device, including the temporary recording stop due to the copy prohibition information.

In the copy control information, a value indicating one of four types of "copy freely", "copy only once", "no more copy", and "copy prohibited" is recorded. The recording control means stores the correspondence between these values and the copy control information. When "copy free" or "copy once" is possible, it is determined that the information is copyable and "no more copying is possible". Alternatively, when "copy prohibited", it is determined that the information is copy prohibited information. With such a configuration, the four types of copy control information can be accurately discriminated as the copy prohibition information and the copy enable information.

Further, a digital recording apparatus having recording means for receiving a signal including a video and / or audio data signal and copy control information thereof via a transmission line and recording the received data signal on a recording medium. When the copy control information detecting means for detecting the copy control information included in the signal and the copy control information detected by the copy control information detecting means are copy prohibition information, the recording by the recording means is temporarily stopped. A recording control unit that stops the recording and restarts the recording by the recording unit when the copy control information that is the copy enable information is detected during the temporary stop. With such a configuration, the recording area of the recording medium is not wastefully consumed, and the recording that has been paused can be resumed after the copy enable signal is obtained without requiring a complicated operation.

Further, a data stream containing at least one of video, audio and data via a digital transmission path,
A digital recording method having a recording step of receiving a digital signal containing these copy control information and recording the received data stream on a recording medium, wherein the copy control information detection detects the copy control information contained in the digital signal. Step, and when the copy control information detected in the copy control information detection step is copy prohibition information, the recording in the recording step is temporarily stopped, and the copy control information which is the copy enable information is detected during the temporary stop. And a recording control step for restarting the recording in the recording step. By such a method, when the copy prohibition information is detected, the recording of the data stream to the recording medium is temporarily stopped, so that the storage area of the recording medium is prevented from being wasted.
Moreover, when the copyable information is detected during the temporary stop, the recording of the data stream on the recording medium is restarted, so that the user does not need to perform a complicated operation.

Further, according to the present invention, a digital signal including a data stream containing at least one of video, audio and data and copy control information of these is received via a digital transmission line, and the received data stream is recorded on a recording medium. A program for causing a computer to realize a digital recording method having a recording step for recording, a copy control information detecting step of detecting copy control information included in a digital signal, and a copy control detected in the copy control information detecting step. A recording control step of temporarily stopping the recording in the recording step when the information is copy prohibition information and restarting the recording in the recording step when the copy control information which is the copy enable information is detected during the temporary stop. And have. With such a program, the data stream recording is restarted when the copyable information is detected while the recording is paused without wasting the storage area of the recording medium. You don't have to.

Further, the present invention is a computer-readable recording medium in which the above program is recorded. This recording medium can be applied to a digital recording device.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of a digital recording system including a digital recording device according to the present invention.

FIG. 2 is a diagram showing an example of a copy control information table stored in the CPU of the above embodiment.

FIG. 3 is a diagram showing an example of a deck state table stored in the CPU of the above embodiment.

FIG. 4 is a diagram showing an example of recording log information recorded in a recording log file of the above embodiment.

FIG. 5 is an LED displayed on the LED of the above embodiment
It is a figure which shows an example of a display screen.

FIG. 6 is a diagram showing an example of a display screen generated by the OSD of the above embodiment.

FIG. 7 is a diagram showing an example of another display screen generated by the OSD of the above embodiment.

FIG. 8 is a first part of a flowchart for explaining the recording processing operation of the above embodiment.

FIG. 9 is a second part of a flowchart for explaining the recording processing operation of the above embodiment.

FIG. 10 is a flowchart illustrating a device status inquiry operation according to the above embodiment.

FIG. 11 is a flowchart illustrating a display screen generation operation in the OSD according to the above embodiment.

FIG. 12 is a flowchart illustrating another display screen generation operation in the OSD of the above embodiment.

[Explanation of symbols]

10 Digital broadcasting receiver 11 I / F 12 antennas 20 display 21 IF 30 digital transmission lines 100 digital recorder 101 Input control unit 102 copy control information detector 103 CPU 104 D-VHS control unit 105 D-VHS tape 106 Deck status storage unit 107 recording log file 108 LED control unit 109 LED 110 Output control unit 111 OSD 112 encoder 113 Transport Stream Bus

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G11B 33/10 601 G11B 33/10 601P H04N 5/91 P H04N 5/765 5/782 K F term (reference) ) 5B017 AA06 CA06 5B065 BA08 PA04 5C018 FA03 FA04 FB01 5C053 FA13 FA22 JA21 KA24 LA06 LA07 5D044 BC01 CC03 DE47 DE50 EF05 FG18 GK12 HH13 HL08

Claims (10)

[Claims] 1. A recording for receiving a digital signal including a data stream containing at least one of video, audio and data and a copy control information of these via a digital transmission line and recording the received data stream in a recording medium. A digital recording apparatus having means, wherein copy control information detecting means for detecting copy control information contained in a digital signal; and when the copy control information detected by the copy control information detecting means is copy prohibition information, Digital recording comprising: recording control means for temporarily stopping recording by the recording means and restarting recording by the recording means when copy control information, which is copy enable information, is detected during the temporary stop. apparatus. 2. When the recording control means suspends recording by the recording means, the recording control means further comprises recording state display means for displaying that the operating state of the recording means is suspension by the copy prohibition information. The digital recording device according to claim 1, wherein the digital recording device is a digital recording device. 3. When the recording control means temporarily stops recording by the recording means, a first display screen generating means for generating a first display screen indicating that, and encoding the first display screen. 2. The digital recording apparatus according to claim 1, further comprising an encoder for recording, wherein the recording unit records the first display screen on a recording medium for a predetermined time after the recording control unit temporarily stops recording. Recording device. 4. A history information recording unit that records the operating state of the recording unit as history information together with the time, including that by the user operation and that by the copy control information, and the recording by the recording unit is performed by the user. When finished by an operation, the history information is read out, and second display screen generation means for generating a second display screen that clearly indicates the recording suspension period by the copy control information, and the generated second display screen are output. The recording apparatus according to claim 1, further comprising output means. 5. An operating state storage unit for storing the current operating state of the recording unit including the operating state according to the copy control information, and the operating state when an inquiry about the operating state of the recording unit is received from an external device. The digital recording apparatus according to claim 1, further comprising: a response unit that reads out an operation state from the storage unit and responds to the external device. 6. The copy control information is recorded with a value indicating one of four types, "copy freely", "copy once only", "no more copies", and "copy prohibited". The recording control means stores the correspondence between these values and the copy control information. When "copy free" or "copy once" is possible, it is determined that the information is copyable and "no more copying is possible". Alternatively, the digital recording apparatus according to claim 1, wherein when it is "copy prohibited", it is determined as copy prohibited information. 7. A digital recording device having a recording means for receiving a signal including a video and / or audio data signal and copy control information thereof via a transmission line and recording the received data signal on a recording medium. A copy control information detecting unit for detecting copy control information included in the signal, and when the copy control information detected by the copy control information detecting unit is copy prohibition information, the recording by the recording unit is temporarily stopped. A digital recording apparatus, comprising: a recording control unit that stops and resumes recording in the recording unit when copy control information that is copy enable information is detected during a temporary stop. 8. A recording for receiving a digital signal including a data stream containing at least one of video, audio and data and copy control information of these via a digital transmission line and recording the received data stream in a recording medium. A digital recording method having steps, wherein a copy control information detecting step of detecting copy control information included in a digital signal, and the copy control information detected in the copy control information detecting step is copy prohibition information, A recording control step of temporarily stopping the recording in the recording step and restarting the recording in the recording step when copy control information that is copyable information is detected during the temporary stop. Method. 9. A recording for receiving a digital signal containing a data stream containing at least one of video, audio and data and copy control information of these via a digital transmission line and recording the received data stream in a recording medium. A program for causing a computer to realize a digital recording method having steps, wherein a copy control information detecting step of detecting copy control information included in a digital signal, and copy prohibition of copy control information detected in the copy control information detecting step When the information is information, a recording control step of temporarily stopping the recording in the recording step, and restarting the recording in the recording step when the copy control information that is the copy enable information is detected during the temporary stop. A program characterized by. 10. A computer-readable recording medium in which the program according to claim 9 is recorded.