JP2002281448A - Recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reproduce a program that is now subjected to real time video recording without putting the flow of its story into disorder. SOLUTION: A recording system 14 starts program video recording when a real time video recording operation is performed. A reproduction system 18 also reproduces the program during video recording when a reproduction operation is performed with respect to the program while the program is subjected to video recording. When another program subjected to a video recording reservation exists, the broadcasting start time of the reserved program is compared with the present time, and the reproduction system 18 performs fast-forward-mode reproduction of the program being reproduced on the basis of the comparison results. When the broadcasting start time of the reserved program arrives, the recording system 14 finishes the real time recording and starts video recording of the reserved program.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus, and more particularly to a recording / reproducing apparatus which is applied to, for example, a hard disk video recorder and reproduces a broadcast program in parallel with recording of the broadcast program.

[0002]

2. Description of the Related Art A hard disk video recorder uses a hard disk excellent in random access as a recording medium. Further, the hard disk video recorder has a chasing playback function for playing back the broadcast program in parallel with the recording of the broadcast program by utilizing the random access property. Therefore, even if the program is being recorded when returning home, the user can enjoy the program from the beginning without stopping the recording.

[0003]

However, if the recording of the program is started in response to a real-time recording operation, and there is a program that is separately reserved for recording,
At the broadcast start time of the reserved program, it is necessary to forcibly end real-time recording and shift to recording of the reserved program. Then, when real-time recording ends before catching up with the scene being actually broadcast, the following problem occurs.
That is, after the scheduled recording is started, the continuation of the program can be viewed by the tuner of the television receiver, but a blank occurs between the scene being reproduced and the scene actually being broadcast. Since this blank portion has already been recorded, it can be confirmed after the end of the scheduled recording, but this will disrupt the flow of the story.

[0004] Therefore, a main object of the present invention is to provide an image recording apparatus capable of reproducing a recorded program in response to a real-time recording operation without breaking a story flow.

[0005]

SUMMARY OF THE INVENTION The present invention provides a first recording start means for starting recording of a first broadcast program in response to a real-time recording operation, and a reproduction operation when the first broadcast program is being recorded. Playback means for playing back the first broadcast program in response to the first broadcast program; comparison means for comparing the broadcast start time of the second broadcast program reserved for recording with the current time; Fast forward playback means to play,
Recording end means for ending the recording of the first broadcast program after the reproduction scene of the first broadcast program catches up with the real-time broadcast scene of the first broadcast program, and recording of the second broadcast program when the broadcast start time comes Is a recording / reproducing apparatus including a second recording start means for starting the recording.

[0006]

When a real-time recording operation is performed, the first
Recording of the first broadcast program is started by the recording start means. Also, if a reproduction operation is performed during recording of the first broadcast program, the reproduction means reproduces the first broadcast program. The comparing means compares the broadcast start time of the second broadcast program reserved for recording with the current time, and the fast-forward means fast-forward reproduces the first broadcast program based on the comparison result. When the playback scene of the first broadcast program catches up with the real-time broadcast scene of the first broadcast program, the recording of the first broadcast program is ended by the recording end means, and when the broadcast start time of the second broadcast program comes, the second recording is started. The recording of the second broadcast program is started by the start means.

[0007] Preferably, the fast-forward means performs fast-forward playback so that the playback scene of the first broadcast program catches up with the real-time broadcast scene before the broadcast start time of the second broadcast program. In this case, at a predetermined time before the broadcast start time, the time difference from the playback scene of the first broadcast program to the real-time broadcast scene is detected, and the fast-forward playback speed is determined based on the detected time difference. It may be determined.

Further, when fast-forward playback is performed by the fast-forward playback means, the playback operation may be invalidated by the invalidation means.

Further, when fast-forward playback is performed by the fast-forward playback means, a predetermined warning may be generated by the generation means.

[0010]

According to the present invention, the first broadcast program is fast-forward reproduced based on the result of comparison between the broadcast start time of the second broadcast program and the current time, so that the first broadcast program is recorded in response to a real-time recording operation. The reproduced program can be reproduced without breaking the flow of the story.

The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

[0012]

Referring to FIG. 1, a hard disk video recorder 10 of this embodiment includes a tuner 12 for inputting a high-frequency television signal captured by an antenna ANT.
including. When a tuning command is given from the CPU 20, the tuner 12 tunes to a desired channel and outputs a baseband television signal of the tuned channel. When a recording command is given from the CPU 20, the recording system 14
The television signal output from the tuner 12 is
GAT compression and FAT
(File Allocation Table) method
To record. When a reproduction command is given from the CPU 20, the reproduction system 18 reproduces the data stream recorded on the hard disk 16, and expands the reproduced data stream by the MPEG method. Thus, the baseband television signal is decoded, and the decoded baseband television signal is output to the television receiver 30.

In the television receiver 30, the CPU
Reference numeral 38 controls the tuner 32 and the switch SW1 in response to an operation of the remote control device 40 or a request from the CPU 20 of the hard disk video recorder 10. That is, when a desired channel is selected by the remote control device 40 or a request for selecting a desired channel is given from the CPU 20, the CPU 38 sets the switch SW 1 to the tuner 32 side, and sets the desired channel to the tuner 32. Order tuning. On the other hand, when "external input" is selected by the remote controller 40, the CPU 38 sets the switch SW1 to the hard disk video recorder 10 side.

When the tuner 32 receives a tuning instruction,
Input a high frequency television signal from the antenna ANT,
A baseband television signal of a desired channel is output. The signal processing circuit 34 performs predetermined signal processing on the baseband television signal supplied from the tuner 32 or the hard disk video recorder 10 through the switch SW1, and displays the processed video signal on the display 36.
Output to As a result, a video reproduced by the hard disk video recorder 10 or a real-time broadcast video is displayed on the display 36.

[0015] The CP of the hard disk video recorder 10
The U20 is equipped with a real-time OS such as iTRON, and controls the tuner 12, the recording system 14, and the reproduction system 16 according to independent routines. In particular,
The tuner 12 and the recording system 14 are controlled according to the routine shown in FIG. 3, and the reproduction system 18 is controlled according to the routines shown in FIGS.

First, referring to FIG. 3, in step S1, it is determined whether or not a real-time recording start operation has been performed, and in step S5, it is determined whether or not a scheduled recording operation has been performed. The operation panel 2 shown in FIG.
When a desired channel is selected by the second cursor key 22h and the recording key 22d is pressed, the process proceeds from step S1 to step S3, and commands the tuner 12 and the recording system 14 to select a desired channel and start real-time recording, respectively. . A baseband television signal of a desired channel is output from the tuner 12.
It is recorded on the hard disk 16 by the EG method.

When the operator presses the reservation key 22 shown in FIG. 2, YES is determined in step S5, and recording reservation processing is performed in step S7. Specifically, the reservation setting is guided through the LCD 22j, and the reserved recording start time, the reserved recording end time, and the reserved recording channel input by the cursor key 22h and the enter key 22g are stored in the memory 20a. When the recording reservation process is completed, the process proceeds to step S9, and a check time is set to 20 minutes before the reservation recording start time. The check time will be described later.

When the processing in step S3 or step S9 is completed, it is determined in step S1 whether a reserved program exists.
In step S13, it is determined whether the current time is the scheduled recording start time. If YES is determined in both steps S11 and S13, the process proceeds to step S15. If either one of steps S11 and S13 is NO, the process proceeds to step S25.

In step S15, it is determined whether or not real-time recording is being performed. If “NO” here, the process directly proceeds to the step S19 to start the scheduled recording.
If YES, the real-time recording ends in step S17, and then the scheduled recording starts in step S19. By the processing in step S17, the recording system 14 ends the recording processing currently being performed. In the reserved recording in step S19, the tuner 12 is instructed to select a reserved recording channel, and the recording system 14 is instructed to start recording reservation. A tuner 12 outputs a baseband television signal of a reserved recording channel, and a recording system 14 records the output baseband television signal on a hard disk 16 in an MPEG format.

In step S21, it is determined whether or not the current time has reached the scheduled recording end time. If YES, an instruction to end the scheduled recording is issued to the recording system 14 in step S23. The recording system 14 stops the recording operation, whereby the recording of the reserved broadcast program on the hard disk 16 is completed. Upon completion of the process in the step S23, the process returns to the step S1.

In step S25, similarly to step S15, it is determined whether or not real-time recording is being executed.
If NO, the process returns to step S1. On the other hand, YE
If S, the process proceeds to step S27, and it is determined whether or not a real-time recording end operation has been performed. When the operator presses the stop key 22e on the operation panel shown in FIG.
S is determined, and the recording system 14 is instructed to end the real-time recording in step S29. The recording system 14 ends the recording operation, and thereby ends the recording of the broadcast program. Upon completion of the process in the step S29, the process returns to the step S1.

Next, the control of the reproducing system 18 will be described with reference to FIGS. First, it is determined whether or not a reproduction operation has been performed in step S31. If YES, normal reproduction is started in step S33. Step S3
1, a desired program is selected by the reproduction key 22a and the cursor key 22i shown in FIG.
YES is determined when 2 g is pressed. In step S33, the normal reproduction of the selected program is performed by the reproduction system 1
Command 8 The reproduction system 18 detects the stream data of the selected program from the hard disk 16 with reference to the FAT, and reproduces the detected stream data at a normal speed. The reproduced base television signal is output to the television receiver 30. If the switch SW1 is set on the hard disk recorder 10 side, an image based on the reproduced baseband television signal is displayed on the display 30.

In step S35, it is determined whether or not a stop operation has been performed. When the operator presses the stop key 22e shown in FIG. 2, the determination is YES, and the reproduction stop is performed in step S37.
Command 8 The reproduction system 18 stops reproducing the stream data, and the display of the reproduced video is interrupted. Upon completion of the process in the step S37, the process returns to the step S31.

If NO in step S35, step S
Proceeding to 39, it is determined whether or not there is a special reproduction operation. If the operator operates the fast-forward key 22b or the rewind key 22c, the judgment is YES, and in the subsequent step S41, the fast-forward playback or the rewind playback is instructed to the playback system 18. The playback system 18 switches the playback mode from normal playback to fast-forward playback or rewind playback, and as a result, the fast-forward video or rewind video is displayed on the display 36. In the step S43, it is determined whether or not an operation for canceling the special reproduction is performed. When the operator operates the reproduction key 22a, Y
ES, and the normal reproduction is performed by the reproduction system
To order. The reproduction system 18 returns the reproduction mode from the special reproduction to the normal reproduction. The display on the display 36 also returns from the fast forward video or the rewind video to the normal playback video.

If the process of step S45 is completed, or if “NO” is determined in step S39, the process proceeds to step S47.
In steps S53 to S53, the judgment processing related to the real-time recording is performed. In a step S47, it is determined whether or not the real-time recording is being executed, and in a step S49, it is determined whether or not the program being reproduced is the same as the program being recorded. In step S51, it is determined whether there is a recording reservation, and in step S53, it is determined whether the current time is after the check time.

If NO is determined in any one of steps S47 to S53, the process returns to step S35. On the other hand, in all of steps S47 to S53, YES
When the determination is made, the process proceeds to step S55, and the time difference between the scene being reproduced and the actual broadcast scene is detected. In a succeeding step S57, the catch-up reproduction speed and the catch-up reproduction start time are determined based on the detected time difference and the remaining time until the reserved recording start time. The catch-up playback speed is a speed at which the playback scene catches up with the actual broadcast scene at a time earlier than the scheduled recording start time. Therefore, the later the catch-up playback start time is delayed, the faster the catch-up playback speed.

Since the processes in steps S55 and S57 are performed only after the check time, the check time can be said to be a reference time for calculating the catch-up reproduction speed and the catch-up reproduction start time.

In step S59, it is determined whether or not the current time has reached the catch-up reproduction start time. If NO, the process returns to step S35. On the other hand, if YES, step S
At 61, a command is issued to the playback system 18 for catch-up playback,
In step S63, an OSD signal for warning display is given to the reproduction system 18.

The reproduction system 18 reproduces the stream data at a high speed in accordance with the catch-up reproduction speed determined in step S57, and multiplexes the OSD signal supplied from the CPU 20 with the reproduced baseband television signal. On the display 36, a program video to be fast-forward-reproduced at the determined catch-up playback speed and a warning message stating "Catch-up playback will start because the scheduled recording start time is approaching" are displayed.

In step S65, it is determined whether or not the playback scene has caught up with the actual broadcast scene. In step S71, it is determined whether or not a normal playback operation has been performed. If the playback key 22a is operated during catch-up playback, the process proceeds from step S71 to step S73, where an additional OSD signal is given to the playback system 18. The display 36 shows "Key operation is invalid"
Is displayed additionally. If the playback scene catches up with the actual broadcast scene, YES is determined in the step S65, a playback stop is instructed to the playback system 18 in a step S67, and the tuner 32 of the television receiver 30 is currently selected in a step S69. Command to select a channel that is in use. As a result, the same channel is selected by the tuner 32, and the program that has been performing real-time recording is continuously displayed on the display 36.

FIG. 6 shows a reproduction operation of a recorded program when a program recording reservation is set. If real-time recording is not being performed, NO is determined in step S47 of FIG. Therefore, the stop key 22
When e is operated, the reproduction is stopped in step S37 of FIG. 4, and when the fast forward key 22b or the rewind key 22c is pressed, the fast forward reproduction or the rewind reproduction is performed in step S41 of FIG. The key operation related to such reproduction is valid after the start of the scheduled recording.

FIG. 7 shows the operation when real-time recording is performed in the state where the recording reservation of the program is set and the program being recorded is reproduced. When a recording reservation is made, a check time is set in step S9 in FIG. The set check time is 2 of the scheduled recording start time.
0 minutes ago. If the current time is before the check time, and if the broadcast time is before the check time, FIG.
Is determined to be NO in step S53. At this time, any key operation related to the reproduction of the program recorded in real time is valid.

When the current time reaches the check time, YES is determined in step S53 of FIG. 5, and the catch-up playback speed and catch-up playback start time are calculated by the processes of steps S55 and S59. However, as long as the current time is earlier than the catch-up reproduction start time, step S in FIG.
The determination at 59 is NO, and the key operation related to the reproduction of the program being recorded is still valid. When the current time reaches the catch-up playback start time, YES is determined in step S59, and catch-up playback at the above-described catch-up playback speed is started in step S61. Further, step S63
Displays a predetermined warning message on the OSD.

When the playback scene catches up with the actual broadcast scene by catch-up playback, YES is determined in step S65, the playback is stopped in step S67, and the tuner 32 of the television receiver 30 is switched in step S69.
Selects the same broadcast channel. The same broadcast program is displayed on the display 36. Note that, even after the reproduction is stopped, the real-time recording is continued.

When the current time reaches the scheduled recording start time, YES is determined in step S13 in FIG. Since the real-time recording is ongoing, YES in step S17
Is determined, the real-time recording is ended in step S19, and then the scheduled recording is started in step S21.

As described above, when the real-time recording and the reproduction of the program being recorded are performed in parallel with the recording reservation set, the program being reproduced is fast-forward-reproduced based on the reservation recording start time and the current time. As a result, it is possible to reproduce a program that is performing real-time recording without breaking the flow of the story.

Although a hard disk is used as a recording medium in this embodiment, a disk recording medium such as a magneto-optical disk may be used instead.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is an illustrative view showing one example of an operation panel;

FIG. 3 is a flowchart showing a part of the operation of the CPU during recording.

FIG. 4 is a flowchart showing a part of the operation of the CPU during reproduction.

FIG. 5 is a flowchart showing another portion of the operation of the CPU during reproduction.

FIG. 6 is a timing chart showing a part of the operation of the embodiment in FIG. 1;

FIG. 7 is a timing chart showing another part of the operation of the embodiment in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Hard disk video recorder 12, 32 ... Tuner 14 ... Recording system 16 ... Hard disk 18 ... Reproduction system 20, 38 ... CPU

Claims (5)

[Claims] 1. A first recording start means for starting recording of a first broadcast program in response to a real-time recording operation, wherein the first broadcast program is recorded in response to a reproduction operation when the first broadcast program is being recorded. Reproducing means for reproducing the broadcast program; comparing means for comparing the broadcast start time of the second broadcast program reserved for recording with the current time; fast-forward reproduction for fast-forward reproducing the first broadcast program based on the comparison result of the comparing means Means for ending the recording of the first broadcast program after the reproduction scene of the first broadcast program catches up with the real-time broadcast scene of the first broadcast program, and when the broadcast start time comes A recording / reproducing apparatus, comprising: second recording start means for starting recording of the second broadcast program. 2. The recording / reproducing apparatus according to claim 1, wherein the fast-forward means performs the fast-forward reproduction at a speed at which the reproduction scene catches up with the real-time broadcast scene before the broadcast start time. 3. A detecting means for detecting a time difference between said reproduction scene and said real-time broadcasting scene at a predetermined time before said broadcasting start time, and said fast-forwarding based on a detection result by said detecting means. 3. The recording / reproducing apparatus according to claim 2, further comprising a determination unit that determines a reproduction speed. 4. The recording / reproducing apparatus according to claim 1, further comprising invalidating means for invalidating said reproducing operation when said fast-forward reproducing is performed by said fast-forward reproducing means. 5. The recording / reproducing apparatus according to claim 1, further comprising a generating means for generating a predetermined warning when said fast-forward reproducing is performed by said fast-forward reproducing means.