JPH09191445A - Automatic recording method and automatic recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To record a broadcast program from which CM is automatically eliminated for every recording by providing an audio mode discrimination means, continuing recording in the case of reception of a stereo broadcast program and conducting CM elimination recording in the case of receiving a bilingual or monaural broadcast. SOLUTION: A system controller 13 is used to start recording. Whether or not the audio mode is the stereo mode is discriminated. When the audio mode is the stereo mode, the presence of a recording stop instruction is discriminated and when the command is in existence, the recording is stopped. On the other hand, when the audio mode is not the stereo mode, after a recording time counter 16 is started, whether or not the audio mode is the stereo mode is discriminated. When the discrimination indicates non-stereo mode and a prescribed time elapses, the CM elimination mode is selected to record the program.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording method or a recording apparatus for recording a received television signal or the like on a recording medium such as a magnetic tape, an optical disk, a semiconductor memory, etc., and a commercial (CM) portion is automatically recorded. The above recording operation can be performed even if the start time of the program to be recorded is delayed due to the extension of the immediately preceding broadcast program or the delay of the immediately preceding broadcast program. Recording method or recording device.

[0002]

2. Description of the Related Art At present, there are three audio modes of monaural, bilingual, and stereo in audio multiplex television broadcasting, and an identification signal is provided in the audio signal to represent these audio modes. (Hereinafter, broadcast programs corresponding to each audio mode are monaural broadcast, 2
National language broadcasting, called stereo broadcasting).

As a conventional recording apparatus, for example, Japanese Patent Publication No. 6-
There is a recording apparatus as shown in Japanese Patent No. 56677, and the identification signals of each of two languages and stereos in the above audio modes are detected, and only the bilingual broadcast or the monaural broadcast is selectively recorded. FIG. 7 is a block diagram showing the configuration of a conventional recording apparatus. In the figure, 1 is a setting key, 2 is a timer microcomputer (hereinafter referred to as a microcomputer), and this microcomputer 2 is a reservation storage circuit 3 and reservation execution. It is composed of a circuit 4, a clock circuit 5, and a control signal generation circuit 6. Reference numeral 7 is an antenna, 8 is a tuner, 9 is a video intermediate frequency conversion circuit (hereinafter, referred to as VIF circuit) for converting a received video signal from the tuner 8 into an intermediate frequency signal, 10 is a signal recording circuit, and 11 is a tuner 8. Audio intermediate frequency conversion circuit (hereinafter referred to as SIF circuit) for converting the received audio signal from the audio signal into an intermediate frequency signal, 12
Is a voice mode discrimination circuit for discriminating the voice mode, 1
3 is a system controller for mainly controlling the operation of the signal recording circuit 10, 14 is a channel receiving circuit, and 15 is a signal recording unit having a recording medium such as a magnetic tape, an optical disk, or a semiconductor memory.

Hereinafter, the operation will be described. At the time of timer reserved recording, by operating the setting key 1, the recording operation setting conditions such as the recording start time, the recording end time, and the receiving channel are input and stored in the reservation storage circuit 3 in the microcomputer 2 and stored. The recording device operates based on the recording operation condition. Here, the reception signal (RF signal) received from the antenna 7 is input to the tuner 8, and the VIF circuit 9 and the SIF circuit 1 are respectively provided for each of the video and audio signals of the signal of the channel designated by the channel receiving circuit 14.
It is output to 1.

The received video signal input to the VIF circuit 9 is converted into a video intermediate frequency signal and supplied to the signal recording circuit 10. The signal recording circuit 10 causes the video intermediate frequency to perform optimum recording on the recording medium. After the signal is subjected to predetermined processing, the signal recording circuit 10 is operated based on the control signal from the system controller 13 to record the signal on the recording medium set in the signal recording unit 15.

The received voice signal input to the SIF circuit 11 is converted into a voice intermediate frequency signal and supplied to the signal recording circuit 10 via the voice mode discriminating circuit 12, and the signal recording circuit 10 causes the signal on the recording medium. After the audio intermediate frequency signal is subjected to predetermined processing so that optimum recording is performed, the signal is set in the signal recording unit 15 based on the control signal from the system controller 13 as in the recording of the video intermediate frequency signal. It is recorded on a recording medium.

The audio mode discrimination circuit 12 discriminates the mode of the audio signal corresponding to the received video signal.
Usually, the mode of the audio signal depends on the broadcast content, for example, many Western movies are currently bilingual, baseball broadcasts are stereo or monophonic, news programs are monophonic or bilingual, and most CMs are stereo. , The voice mode is different. Therefore, for example, when recording a Western picture program, the audio mode in the net broadcast content of the Western picture program is bilingual, and the CM inserted in the program is
Since the audio mode is stereo, if the difference in the audio modes is discriminated and the recording is controlled, it is possible to record the net broadcast content from which the CM of the Western picture program is removed.

Hereinafter, recording according to the CM removal setting (hereinafter,
The operation of the recording apparatus when performing CM removal recording) will be described. Here, the voice mode discrimination circuit 12
98 present in a voice signal as a voice mode identification signal
The presence / absence of a 2.5 Hz pilot signal (a pilot signal indicating stereo broadcasting) is detected, and when the pilot signal is detected, the determination signal P is input to the control signal generation circuit 6 of the microcomputer 2.

When the reserved recording is set, the reservation execution circuit 4 compares the data of the recording start time which is input and stored in advance in the reservation storage circuit 3 with the data of the current time output from the clock circuit 5. The recording signal R is output to the system controller 13 and the channel receiving circuit 14 when the two data coincide with each other.

Upon receiving the output recording signal R, a control signal is output from the channel receiving circuit 14 to the tuner 8,
The tuner 8 performs channel selection operation based on the reception channel information stored in advance in the reservation storage circuit 3 and outputs the selected video signal and audio signal to the VIF circuit 9 and the SIF circuit 11 to generate a video image. The signal and the audio signal are output to the signal recording circuit 10, respectively. The video signal and audio signal input to the signal recording circuit 10 are input to the signal recording unit 15.

The system controller 13 receives the recording signal R from the reservation executing circuit 4 and receives the recording signal R,
The signal recording unit 15 is controlled to perform the video and audio recording operation (start of reserved recording). As a result, the signal recording circuit 10
The video signal and the audio signal input to are recorded on the recording medium set in the signal recording unit 15. While the reserved recording is started and the signal recording circuit 10 is performing the recording operation on the recording medium set in the signal recording unit 15, the audio mode determination circuit 12 outputs the pilot signal corresponding to the stereo broadcast included in the audio signal. When the stereo broadcast is received while the video signal and the audio signal are being recorded, it is determined that the CM has been broadcast, the discrimination signal P is output from the audio mode discrimination circuit 12, and the discrimination signal P is input. At this time, the control signal generation circuit 6 outputs a control signal C1 for temporarily stopping the recording operation to the system controller 13. Upon receiving the control signal C1, the system controller 13 suspends the recording operation of the signal recording circuit 10 and the signal recording unit 15 (record pause state).

In the above case, when the discrimination signal P is not output from the voice mode discrimination circuit 12, the control signal generation circuit 6 outputs the control signal C2 for restarting the recording operation to the system controller 13, and the system controller 13 Upon receiving the control signal C2, the recording operation of the signal recording circuit 10 is restarted. By the recording operation as described above, for example, when recording a Western picture broadcast, the CM-removed net broadcast content is recorded.

[0013]

Since the conventional recording apparatus is constructed as described above, if the program to be recorded is not a stereo broadcast, CM removal must be set.
However, if the program to be recorded is a stereo broadcast, if the CM removal setting is not canceled or if the CM removal setting is made, the program to be recorded will not be recorded at all. There was a problem. Also, when automating the recording operation of a program based on the audio mode, if the recording time is not automatically extended according to the extension time of the immediately preceding program, the recording will end when the preset recording end time arrives. However, there is a problem in that, in some cases, it is not possible to record all of the program content to be recorded. The present invention has been made in order to solve the above-mentioned problems, and under a specific condition, even if the user does not preset whether or not to use the CM removal recording for each recording, the broadcast program It is an object of the present invention to provide an automatic recording method and an automatic recording device capable of automatically removing CM from the recording.

[0014]

In the automatic recording method according to the present invention, one of a first audio mode in which the audio mode is stereo and a second audio mode in which the audio mode is bilingual or monaural. In a recording method of receiving and recording a broadcast signal having an audio mode, when the audio mode of the broadcast signal at the start of recording is the first audio mode, or when the audio mode of the broadcast signal at the start of recording is the second audio mode.
Recording mode of the broadcast signal having the second audio mode and the duration of the broadcast signal having the second audio mode is switched to the broadcast signal having the first audio mode without exceeding a predetermined time. And the audio mode of the broadcast signal at the start of recording is the second audio mode and the duration of the broadcast signal having the second audio mode exceeds a predetermined time, or broadcast at the start of recording. The audio mode of the signal is the first audio mode, the broadcast signal having the first audio mode is switched to the broadcast signal having the second audio mode, and the duration of the broadcast signal having the second audio mode is After a predetermined time has elapsed, a mode discriminating recording operation for recording a broadcast signal having a second audio mode without recording a broadcast signal having a first audio mode is performed. A.

Also, in the automatic recording method according to the present invention, in the recording method according to the first invention, a preset recording end time is set in accordance with the period from the start of recording to the mode discriminating recording operation. It was changed.

Further, the automatic recording apparatus according to the present invention has a first audio mode in which the audio mode is stereo and a second audio mode in which the audio mode is bilingual or monaural. A recording unit for receiving and recording a broadcast signal, and a voice for discriminating whether the voice mode of the received broadcast signal is the first or second voice mode and outputting the discrimination result. In the recording apparatus including the mode determination means and the timing means for timing the duration of the broadcast signal having the second audio mode, the output of the audio mode determination means at the start of recording is the first.
Second audio mode, or the output of the audio mode discrimination means at the start of recording is the output corresponding to the second audio mode and the second time measured by the time measuring means.
When the output of the audio mode discriminating means is switched to the output corresponding to the first audio mode without the duration of the broadcast signal having the audio mode of No. 3 exceeds a predetermined time, the recording operation for the broadcast signal by the recording means is performed. The output of the audio mode discriminating means at the start of recording is the output corresponding to the second audio mode, and the duration of the broadcast signal having the second audio mode measured by the time measuring means exceeds the predetermined time. The output from the audio mode discriminating means after the time point when the recording is started or when the recording is started is an output corresponding to the first audio mode,
The output of the audio mode discriminating means is switched from the output corresponding to the first audio mode to the output corresponding to the second audio mode, and the duration of the broadcast signal having the second audio mode measured by the time measuring means is a predetermined time. After the point of time, the recording means performs the mode determination recording operation of recording the broadcast signal having the second audio mode without recording the broadcast signal having the first audio mode.

Further, in the automatic recording apparatus according to the present invention, in the automatic recording apparatus according to the third invention, the recording end time set in advance is set according to the period from the start of recording to the mode discriminating recording operation. Configured to change.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION An automatic recording method and an automatic recording apparatus according to the present invention will be specifically described below with reference to the drawings showing an embodiment thereof. In addition, in the drawings, the same reference numerals indicate the same or corresponding ones as in the related art.

Embodiment 1 1 is a block diagram showing an embodiment 1 of an automatic recording apparatus according to the present invention. In the figure, 1 is a setting key and 2 is a timer microcomputer (hereinafter referred to as a microcomputer).
Is a reservation storage circuit 3, a reservation execution circuit 4, a clock circuit 5,
It is composed of a control signal generation circuit 6 and a recording time counter 16. Reference numeral 7 is an antenna, 8 is a tuner, 9 is a video intermediate frequency conversion circuit (hereinafter, referred to as VIF circuit) for converting a received video signal from the tuner 8 into an intermediate frequency signal, 10 is a signal recording circuit, and 11 is a tuner 8. An audio intermediate frequency conversion circuit (hereinafter referred to as an SIF circuit) for converting a received audio signal from the audio signal into an intermediate frequency signal, 12 is an audio mode determination circuit for determining an audio mode, and 13 is mainly the signal recording circuit 10. Is a channel controller, 14 is a channel receiving circuit, 15 is a signal recording unit having a recording medium such as a magnetic tape, an optical disk, or a semiconductor memory, 17 is a recording key, and 18 is a stop key.

The operation will be described below. Recording key 1
When 7 is pressed, a signal indicating that there is a key input is input to the system controller 13, and the system controller 13 activates the signal recording circuit 10 to cause the recording medium set in the signal recording unit 15 to operate. The recording operation is started until, for example, the stop key 18 is pressed and a signal indicating that the stop controller 18 has been pressed by the system controller 13 is input to the system controller 13.

During the above recording operation, the audio mode discrimination circuit 12 discriminates the identification signal (pilot signal) representing the audio mode contained in the audio signal, and the audio mode in the broadcast being received is stereo (first audio). Mode), the discrimination signal P is output, and the audio mode of the broadcast being received is bilingual or monaural (second audio mode).
If it is, the discrimination signal P is not output. At least a 2-bit signal is used because the actual discrimination signal needs to express a signal format of bilingual, monaural, or stereo broadcasting. In the case of an example of this format, whether the received signal is stereo or not. It is sufficient to determine that, for example, stereo is H (high level of digital signal or 1), 2
It is also possible to use a 1-bit signal such as L (a low level of a digital signal or 0) for the national language and monaural. In this case, it goes without saying that the stereo may be L and the bilingual language may be H.

The recording time counter 16 in the following description
For example, when the discrimination signal P is output from the audio mode discrimination circuit 12 (when the received program is stereo broadcasting), the control signal generation circuit 6 causes the recording time counter 16 to perform the time counting operation. If the discrimination signal P is not output from the audio mode discrimination circuit 12 (when the received program is not a stereo broadcast),
The control signal generation circuit 6 controls the recording time counter 16 to perform a time counting operation, and starts measuring the recording time when the received signal is not a stereo broadcast. Further, when the received program is not a stereo broadcast, the recording time counter 16 may start from an initial value (for example, 0) at the start of the time counting operation.

The recording time counter 16 has a predetermined time elapse signal Q indicating that 5 minutes have elapsed when 5 minutes have elapsed as a predetermined time from the start of timing (start of recording operation).
Is output to the control signal generation circuit 6 to shift to CM removal recording. Therefore, if the received program during this period is not a stereo broadcast, it is determined that the broadcast is a bilingual broadcast or a monaural broadcast, and the CM removal recording is started. In this case, the recording operation is performed for the broadcast having the bilingual or monaural audio mode (the control signal generating circuit 6 outputs the control signal C2), and the broadcast having the stereo audio mode is performed. The recording operation is not performed (the control signal generating circuit 6 outputs the control signal C1). Therefore, when these control signals C1 and C2 are given to the system controller 13, the CM removal operation is performed in the subsequent recording (CM removal recording mode).

The operation of the first embodiment will be described below with reference to the operation flow. FIG. 2 is an operation flow chart of the automatic recording method and the automatic recording apparatus according to the present invention. S1 is a step in which the recording operation is started, S2 is a step for determining whether or not the received signal is stereo, and S3 is A step of determining whether or not there is a recording operation stop command that occurs when the stop key 18 is pressed, S
4 is a step of terminating the recording operation, S5 is a step of activating a recording time counter, S6 is a step of determining whether or not the received signal is stereo, and S7 is a predetermined period during which the received signal is determined not to be stereo in step S6. As the time, for example, a step of determining whether 5 minutes have elapsed, S8 is a step of transitioning to the CM removal recording mode, S9 is a step of determining the presence or absence of a recording operation stop command, and S10 is a presence or absence of a recording operation stop command. This is the step of determining.

The operation will be described below with reference to FIGS. 1 and 2. When the signal recording circuit 10 starts the recording operation on the recording medium set in the signal recording unit 15 by the system controller 13 (S1), first,
It is determined whether the audio mode of the received signal is stereo (S2). If it is determined that the audio mode of the received signal is stereo, the presence or absence of a recording stop command is determined (S3), and if there is a stop command, the recording operation is ended (S4) and there is no stop command. In that case, the process returns to step S2. Therefore, when the stereo broadcast continues, the recording operation continues until the stop command arrives. If it is determined in step S2 that the audio mode of the received signal is not stereo, the operation proceeds to an operation (steps S5 to S10) for determining whether or not to shift to CM removal recording.

If it is determined in step S2 that the audio mode of the received signal is not stereo, the recording time counter 16 is activated (S5), and the measurement of the time during which the subsequent stereo broadcast of the received signal continues is started. After the recording time counter 16 is activated, it is determined whether or not the audio mode of the received signal is stereo in order to determine whether or not the stereo broadcast is received thereafter (S6). It is determined whether or not the time has passed (S7). If the predetermined time has not elapsed in step S7, the process returns to step S6 to repeat the determination as to whether or not it is stereo.

If it is determined in step S7 that the predetermined time has elapsed, it is determined that the program is not a stereo broadcast program, and the process proceeds to CM removal recording (S8). If it is determined to be stereo in step S6, the broadcasted content is either a commercial or a stereo program. If it is a stereo broadcast program, the program itself may not be recorded if the mode is switched to the CM removal recording mode. Since there is, it operates to record. Further, it is determined whether or not there is a recording operation stop command (S9), and if there is a stop command, the recording operation is ended (S10). If there is no stop command in step S9, the process returns to step S2 and
Repeat steps 2 and below.

FIG. 3 is an operation flow chart showing the operation steps after shifting to the CM removal recording mode, and S11 is a flow chart of FIG.
This is the same step as step S8 in step S12, step S12 is a step of determining whether the received broadcast is stereo broadcast, step S13 is a step of stopping the recording operation, and step S14 is a presence / absence of a recording operation stop command. Step, S15 is a step of terminating the recording operation when there is a recording operation stop command in step S14, S16 is a step of determining the presence or absence of a recording operation stop command, and S17 is a step of recording operation stop command in step S16. This is the step of ending the recording operation.

The operation of CM removal recording will be described below with reference to the operation flow chart shown in FIG. The mode is switched to the CM removal recording mode, and the CM removal recording is started (S1
1) and whether or not the broadcast signal is a stereo broadcast (S12), and if the broadcast signal is a stereo broadcast, the recording operation is temporarily stopped (S13), and it is determined whether or not there is a stop command (S1).
4) If there is a stop command, the recording is ended (S15). If there is no stop command, the process returns to step S12. If it is determined in step S12 that the broadcast is not stereo broadcasting,
It is determined whether or not there is a recording operation stop command (S16),
If there is a stop command, the recording operation is ended (S17). If there is no stop command in step S16, recording is continued and the process returns to step S12. Thus, when recording, only the stereo broadcast can be selectively removed and recorded (mode discrimination recording operation).

In the above description of the embodiment, the start and end of the recording operation are set according to the input states from the recording key 17 and the stop key 18 provided on the recording device side. The same operation is possible in the case.
That is, at the start of the recording operation, information necessary for reserved recording such as the time to start the reserved recording, the time to end the reserved recording, the channel to be recorded, and selection of the normal time mode or the long time mode is set by the setting key 1. It is input and stored in the reservation storage circuit 3. The clock circuit 5 always outputs the real time (time at that time), and the reservation execution circuit 4 compares the information stored in the reservation storage circuit 3 with the output from the clock circuit 5 and is set. The recording operation is started by outputting the recording control signal R to the system controller 13 so as to start the recording operation at or near the start time.

At the end of the recording operation, the reservation execution circuit 4 compares the information stored in the reservation storage circuit 3 with the output from the clock circuit 5, and the recording operation is performed at or near the set end time. A recording control signal R for ending the recording is output to the system controller 13 to end the recording operation. That is, since the above-described recording control signal R is equivalent to the input signal from the recording key 17 and the stop key 18, the same operation in the description of the above-described one embodiment can be realized.

Embodiment 2 FIG. FIG. 4 is an explanatory diagram for explaining a time relationship between a program to be recorded and a program immediately before it, in the second embodiment of the present invention. For example, if there is a program B to be recorded between 13:00 and 14:00, and the program A immediately before that is extended by 10 minutes, the broadcast start time of the program B is 13:10 and the end time is 14 hours. It will be 10 minutes. Therefore, if the reserved recording time is set from 13:00 to 14:00, program A is recorded from 13:00 to 13:10, and
Program B will be recorded from 14:00 to 14:00,
The contents of the program B from 14:00 to 14:10 are not recorded. Therefore, in the above case, if the recording end time is automatically set to 14:10, the entire contents of the program B can be recorded.

In the description of the second embodiment, the recording end time can be automatically set when the audio mode of the program A is stereo and the audio mode of the program B is monaural or bilingual. I will describe. In this case, when the program B is recorded, CM removal recording is also executed.

The second embodiment having the above-mentioned features will be described below with reference to FIG. FIG. 5 is a block diagram showing a recording device configured to operate in the case where there is a delay in the start of broadcasting a program to be recorded by making a recording reservation in advance in the configuration of the first embodiment described above.
In the figure, in addition to the above-mentioned FIG.
0, end time calculation circuit 21, and correction counter 22 are added.

FIG. 6 is a flow chart for explaining this embodiment. S20 is a recording start step.
S21 is a step of resetting the correction counter 22,
S22 is a step of starting recording and simultaneously activating the correction counter 22, S23 is a step of determining whether the audio mode of the broadcast received after the start of recording is stereo, and S24 is a step of determining the presence or absence of a stop command. , S2
5 is a step of terminating the recording operation, S26 is a step of activating the recording time counter 16 from 0, S27 is a step of judging whether the audio mode of the received broadcast signal is stereo, and S28 is time counting by the recording time counter 16. This is a step of determining whether or not the elapsed time has passed a predetermined time, for example, 5 minutes. S29 is step S27
This is a step of determining the presence / absence of a stop command when it is determined that the audio mode is stereo, and if there is a stop command, recording is ended (S30). When the predetermined time is exceeded in step S28, the process moves to the CM removal recording mode (S31).

S31 is a step for starting the CM removal recording, S32 is a step for obtaining the time measurement data of the correction counter 22 at the start of the recording operation in step S31, and S33 is a scheduled end time of the reserved recording and step S.
32, a step of calculating a time difference from the time measurement data acquired, S34 is a step of correcting the scheduled end time of reserved recording by the time difference calculated in step S33, and S35 is a voice mode of the received broadcast after step S31. Step S36 is a step for determining whether or not it is stereo, and step S36 is a step for stopping the recording operation when the audio mode is stereo in step S35. After the recording operation is stopped, the procedure returns to step S35. S
Reference numeral 37 is a step of determining whether or not the end time of the recording reservation corrected in step S34 is reached when it is determined in step S35 that the audio mode is not stereo, and when it is determined not to be the end time, step S35. Return to. S38 is a step of ending the recording operation when it is determined in step S37 that the end time has come.

In the following description, when the audio mode of the broadcast program to be recorded is monaural or bilingual and the audio mode of the immediately preceding broadcast is stereo, the CM removal recording is performed from the time when the recording operation is started. The elapsed time to reach the mode is measured, and the mode is changed to the CM removal recording mode, and the recording reservation end time is shifted by the elapsed time measured up to that point and reset (corrected) again, and this corrected A description will be given of the one in which CM removal recording is performed until the end time.

The operation will be described below with reference to FIGS. When the recording signal R is output from the reservation execution circuit 4 to the system controller 13, the signal recording circuit 1
0, the channel receiving circuit 14, and the signal recording unit 15 are activated, and the received signal is recorded on the recording medium set in the signal recording unit 15 to be in the recording start state (S2).
0). In this state, the correction counter 22 is reset (S21), and the correction counter 22 is activated almost simultaneously with the start of recording (S22) to measure the elapsed time from the start of recording.

Next, the audio mode of the received broadcast signal is discriminated (S23), and if the audio mode is stereo, it is discriminated whether or not there is a stop command (S24), and if there is a stop command, recording is terminated (S24). S25). If there is no stop command in step S24, the process returns to step S23 to continue recording. If it is determined in step S23 that the audio mode is not stereo, the recording time counter 16 is activated from the reset state (here, for example, time counting starts from time 0), and it is determined whether the audio mode of the received signal is stereo. If the audio mode is stereo (S27), the presence / absence of a stop command is determined (S29), and if there is a stop command, recording is terminated (S30). If there is no stop command, the process returns to step S23.

When the audio mode of the received broadcast is not stereo in step S27, the predetermined time is, for example, 5
It is determined whether or not minutes have elapsed (S28), and if 5 minutes have not elapsed, the process returns to step S27. When 5 minutes have elapsed, the recording time counter 16 outputs the predetermined time elapsed signal Q to the control signal generation circuit 6 to start the CM removal recording (S31). When the CM removal recording is started, the time count data of the correction counter 22 is acquired (S32), and the real time data and the time count data output from the clock circuit 15 and the predetermined time required to determine the CM removal record are obtained. And the time difference is calculated from (S33). The time difference obtained here becomes the correction time of the end time of the reserved recording stored in the reserved recording circuit 3. The end time of the reserved recording to be corrected is calculated from the correction time and the end time of the reserved recording, for example, by adding (S34), and the obtained new end recording time data of the reserved recording is stored in the reservation storage circuit 3.

For example, when the reserved recording of the program B is set from 13:00 to 14:00 shown in FIG. 4, the recording operation of the broadcast signal is started from 13:00. When the program A immediately before the program B is extended for 10 minutes, the start time of the program B is 13:10. Here, the clocking start time of the correction counter 22 is 13:00, and the program A is received until 13:10 and the program B is received at 13:10.
From 10 minutes, a determination operation is performed as to whether or not to move to CM removal recording for 5 minutes. That is, the CM removal recording is started for program B at 13:15, so if the initial value of the correction counter 22 is 0 (the initial value of the timing start is 0), the CM removal recording is started. The time count data of the correction counter 22 at the time of being set is 15 minutes. Therefore, 15 minutes-5 minutes = 10 minutes is obtained as the time difference, and 14:10 added to the scheduled recording end time of 14:00 is newly set as the scheduled recording end time.

After that, it is determined whether or not the audio mode of the received signal is stereo (S35). If the audio mode is stereo, the recording operation is stopped (S36), and the process returns to step S35. If the audio mode is not stereo in step S35, the process returns to step S35 unless the end time of the newly obtained reserved recording described above is reached (S3).
7). If the end time data of the reserved recording newly obtained in step S37 is reached, the recording operation is ended (S38). By operating as described above,
The audio mode of the program just before recording is stereo (first audio mode), and the audio mode of the program to be recorded is bilingual or monaural (second audio mode)
, The preset recording end time set in advance can be automatically changed according to the extended time even if the program immediately before the recording is extended. CM removal recording can be realized.

When obtaining the time difference, the real time (time 1) in step S20 and the real time (time 2) in step S31 described above are respectively acquired, and time 2-time 1-5 minutes (transition to CM removal recording) The time difference may be obtained according to the (determination time until), or the start time of reserved recording may be used instead of the acquisition of time 1. Further, the initial value of the correction counter 22 may be set by excluding the determination time until the CM removal recording is started. In this case, the calculation result of the above time 1-time 2 is set as the time difference data. Can be obtained as

[0044]

According to the automatic recording method of the present invention, the first audio mode in which the audio mode is stereo and the second audio mode in which the audio mode is bilingual or monaural can be selected. When receiving and recording a broadcast signal that the user has, if the audio mode at the start of recording is the first audio mode or the audio mode at the start of recording is the second audio mode and the audio mode does not continue for a predetermined time, If the recording operation is performed without performing the removal recording for the broadcast signal having the audio mode of 1, and the audio mode at the start of recording is the second audio mode and continues for a predetermined time or longer,
Alternatively, even if the audio mode at the start of recording is the first audio mode, after the time when the audio mode is switched to the second audio mode and continues for a predetermined time or longer, the broadcast signal having the first audio mode is Since the mode discrimination recording operation of recording the broadcast signal having the second audio mode without recording is performed, the audio mode of the broadcast signal to be recorded has the first audio mode of stereo. In this case, since the broadcast signal is recorded, if the program to be recorded is a program having the first audio mode, a recording error such that the CM removal recording cannot be canceled even if the user does not cancel the recording. And a broadcast signal having a second audio mode in which the audio mode is bilingual or monaural is continued for more than a predetermined time, Since the CM having the first voice mode in which the voice mode is stereo can be automatically removed and recorded, the CM removal recording is automatically executed even when the user does not set the CM removal recording. Therefore, it is possible to realize an automatic recording method capable of recording a net program portion to be recorded.

Further, according to the automatic recording method of the present invention, when the program immediately before the program to be recorded is extended, it is preset in accordance with the period from the start of the recording operation to the mode discriminating recording operation. Since the recorded recording end time data is changed, if the immediately preceding program is extended,
While doing CM removal recording of the program you want to record next,
Since the recording end time of the program to be recorded is changed according to the extension time of the immediately preceding program, it is possible to realize an automatic recording method capable of surely recording the entire program content without ending the recording operation in the middle of the program. be able to.

According to the automatic recording apparatus of the present invention, the first audio mode in which the audio mode is stereo,
When receiving and recording a broadcast signal having an audio mode of either a second language or a monaural audio mode, the audio mode at the start of recording is the first audio mode or the start of recording. If the audio mode at the time is not the predetermined time even if the audio mode is the second audio mode, the recording operation is performed without performing the removal recording for the broadcast signal having the first audio mode, and the audio mode at the start of the recording is If the second audio mode is continued for a predetermined time, or even if the audio mode at the start of recording is the first audio mode, the second audio mode is switched to and the predetermined time is exceeded. After the point of continuation, the mode discrimination recording operation is performed in which the broadcast signal having the first audio mode is not recorded and the broadcast signal having the second audio mode is recorded. Therefore, when the audio mode of the broadcast signal to be recorded has the first audio mode that is stereo, the program operates to record the broadcast signal, so that the program to be recorded has the first audio mode. In the case of a program, it is possible to prevent a recording error such that recording cannot be performed even if the user does not cancel the CM removal recording, and a broadcast signal having a second audio mode in which the audio mode is bilingual or monaural is provided. Since the CM having the first audio mode in which the audio mode is stereo can be automatically removed and recorded when continued for a predetermined time, the user did not set the CM removal recording. Even in such a case, since the CM removal recording is automatically executed, it is possible to obtain an automatic recording device capable of recording a net program portion to be recorded. Kill.

Further, according to the automatic recording apparatus of the present invention, when the program immediately before the program to be recorded is extended, it is preset in accordance with the period from the start of the recording operation to the mode discrimination recording operation. Since the recorded recording end time data is changed, if the immediately preceding program is extended,
While doing CM removal recording of the program you want to record next,
Since the recording end time of the program to be recorded is changed according to the extension time of the immediately preceding program, it is possible to obtain an automatic recording device capable of surely recording the entire program content without ending the recording operation in the middle of the program. You can

[Brief description of the drawings]

FIG. 1 is a block diagram showing a recording device according to a first embodiment of the invention.

FIG. 2 is an operation flow chart showing a recording operation before a CM removal recording mode according to the first embodiment of the present invention.

FIG. 3 is an operation flow chart showing a recording operation after a CM removal recording mode according to the first embodiment of the present invention.

FIG. 4 is an explanatory diagram for explaining a time relationship between a program to be recorded and a program immediately before it.

FIG. 5 is a block diagram showing a recording apparatus according to a second embodiment of the present invention.

FIG. 6 is an operation flow chart showing a recording operation according to the second embodiment of the present invention.

FIG. 7 is a block diagram showing a conventional recording device.

[Explanation of symbols]

1 setting key, 2 microcomputer, 3 reservation recording circuit, 4
Reservation execution circuit, 5 clock circuits, 6 control signal generation circuit, 7 antennas, 8 tuners, 9 VIF, 10
Signal recording circuit, 11 SIF, 12 audio mode discriminating circuit, 13 system controller, 14 channel receiving circuit, 15 signal recording unit, 16 recording time counter,
17 recording key, 18 stop key, 20 time difference calculating circuit, 21 end time calculating circuit, 22 correction counter, R recording control signal, P discrimination signal, Q predetermined time elapsed signal, C1, C2 control signal.

Claims (4)

[Claims] 1. A recording method for receiving and recording a broadcast signal having a first audio mode in which the audio mode is stereo and a second audio mode in which the audio mode is bilingual or monaural. In the case where the audio mode of the broadcast signal at the start of recording is the first audio mode, or the audio mode of the broadcast signal at the start of recording is the second audio mode, and When the duration of the broadcast signal having the audio mode is switched to the broadcast signal having the first audio mode without exceeding the predetermined time, the recording operation of the broadcast signal is performed, and the broadcast signal at the start of recording is performed. Is the second audio mode, and the broadcast signal having the second audio mode has a duration exceeding the predetermined time, or the broadcast at the start of recording. Signal audio mode of the first
, The broadcast signal having the first voice mode is switched to the broadcast signal having the second voice mode, and the duration of the broadcast signal having the second voice mode is the predetermined time. An automatic recording method characterized by performing a mode discriminating recording operation of recording the broadcast signal having the second audio mode without recording the broadcast signal having the first audio mode after the time point of exceeding. 2. The automatic recording method according to claim 1, wherein the preset recording end time is changed according to the period from the start of recording to the mode discriminating recording operation. 3. For receiving and recording a broadcast signal having a first audio mode in which the audio mode is stereo and a second audio mode in which the audio mode is bilingual or monaural. A recording unit, an audio mode discriminating unit for discriminating which one of the first and second audio modes the received broadcast signal has, and outputting the discrimination result; In a recording device provided with a timing means for timing the duration of a broadcast signal having a mode, the output of the audio mode discrimination means at the start of recording is the first
Output corresponding to the second audio mode, or the output of the audio mode determining means at the start of recording is the output corresponding to the second audio mode, and the second audio measured by the time measuring means. When the output of the audio mode determination means is switched to the output corresponding to the first audio mode without the duration of the broadcast signal having the mode exceeding a predetermined time, the recording means responds to the broadcast signal. The recording operation is performed, and the output of the audio mode discrimination means at the start of recording is the second
Output corresponding to the audio mode, and the audio mode determination after the duration of the duration of the broadcast signal having the second audio mode measured by the time measuring means exceeds the predetermined time, or at the start of recording. The output from the means is the first
Output corresponding to the audio mode, the output of the audio mode determination means is switched from the output corresponding to the first audio mode to the output corresponding to the second audio mode, and the time measured by the time measuring means. After the duration of the broadcast signal having the second audio mode exceeds the predetermined time, the recording unit does not record the broadcast signal having the first audio mode and the second audio mode is not recorded. An automatic recording apparatus, which is configured to perform a mode discriminating recording operation for recording a broadcast signal having the following. 4. The automatic recording apparatus according to claim 3, wherein the preset recording end time is changed according to the period from the start of recording to the mode discriminating recording operation.