JP2003309813A - Information reproducing apparatus and information reproducing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reproducing apparatus and a reproducing method easily finding out a boundary point between commercial messages (CMs) and programs so as to allow a user to simply operate CM skipping. <P>SOLUTION: The reproducing apparatus for reproducing at least a program from a recording medium, wherein CMs and programs are separately recorded on time base, is provided with: an operation entry section 101 used for operating inhibition of CM reproduction from the recording medium; a pickup 102 for detecting at least one of a CM and a program corresponding at least to a reproduction time predetermined, including a first border being a border of the CMs or a reproduction time predetermined, including a second border being a border between a CM and a program succeeding to the CM when the operation is executed; an information reproduction section 103 for reproducing the detected information; and a system control section 105 for stopping the detection or the reproduction when a program detection reproduction operation is executed after the reproduction inhibit operation is executed, and the pickup 102 and the information reproduction section 103 detect and reproduce a program corresponding to the detection reproduction operation. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technical field of an information reproducing apparatus and an information reproducing method, and more particularly to a technical field of an information reproducing apparatus and an information reproducing method having a commercial skip function.

[0002]

2. Description of the Related Art It is not uncommon to record commercial television broadcast programs on a video tape recorder or the like for personal viewing later.

When watching a recorded program, there are cases where it is desired to watch only the program itself without watching the commercial (CM).

In order to meet this need, there is a reproducing apparatus having a function of skipping a CM portion by a key operation.

Since a normal CM is in units of 30 seconds, generally, in a video tape recorder, when the CM skip key is pressed, the reproduced image for the number of times of pressing × 30 seconds is reproduced fast forward, and then the normal reproduction is resumed. In addition, in the disc type player, if you press the CM skip key, the number of presses × 30 seconds will be skipped at once,
After that, the method of returning to normal reproduction is adopted. When the user presses the play key during fast-forwarding or skipping, normal playback starts from that point.

[0006]

However, according to the above-described conventional CM skip method, the CM skip key has to be pressed many times, which causes a problem that the operation is bad.

There is also a problem in that the user does not know how long the CM lasts, and thus does not know how many times the CM skip key should be pressed.

That is, if the number of times the CM skip key is pressed is too small, it is necessary to press the CM skip key again after returning to the normal reproduction. On the contrary, if the number of times the CM skip key is pressed is too large, it is too much. Since it is played back from the scene, it was necessary to rewind by reverse playback in a hurry to find the switching between the CM and the program and play back.

Therefore, the present invention has been made in view of the above problems, and its problem is a reproducing apparatus in which the switching between the CM and the program can be easily found and the CM skip operation can be easily performed by a simple operation. And to provide a reproducing method.

[0010]

In order to solve the above-mentioned problems, the invention according to claim 1 is a reproduction undesired information which is not desired to be reproduced and is reproduced for a preset unit time. At least the reproduction is performed from a recording medium in which reproduction undesired information including only one or more pieces of desired unit information and reproduction desired information desired to be reproduced are separately recorded on the time axis. In an information reproducing apparatus for reproducing desired information, operation means such as an operation input unit for performing a reproduction prohibiting operation for prohibiting reproduction of the reproduction undesired information from the recording medium, and the reproduction prohibition by the operating means. When an operation is performed, a reproduction time set in advance including a first boundary which is a boundary between the reproduction undesired unit information, or one reproduction undesired unit information and the reproduction undesired unit information. , A reproduction time set in advance including a second boundary which is a boundary with the reproduction desired information subsequent to the information, such as a pickup which detects, as search information, information corresponding to the reproduction time from the recording medium. A detection unit, a reproduction unit such as an information reproduction unit for reproducing the detected search information, and a detection reproduction operation for detecting and reproducing the reproduction desired information after the reproduction prohibition operation is executed. A stop means such as a system control unit that stops either detection or reproduction of the search information when executed by the means, and when the detected reproduction operation is executed after the reproduction prohibit operation is executed, A detection / reproduction unit such as a pickup and an information reproduction unit that detects and reproduces the reproduction desired information corresponding to the detection / reproduction operation from the recording medium.

Therefore, when the reproduction inhibition operation is executed,
The information corresponding to the reproduction time of either the reproduction time including the first boundary or the reproduction time including the second boundary is detected as search information and reproduced, and the detection reproduction operation is executed after the reproduction prohibition operation is executed. In this case, either detection or reproduction of the search information is stopped, and when the detection reproduction operation is executed after the reproduction prohibition operation is executed, the corresponding reproduction desired information is detected from the recording medium and reproduced. , It is possible to start the search for the desired reproduction information that should be reproduced subsequently while prohibiting the reproduction of unnecessary reproduction undesired information by performing the reproduction prohibition operation only once, and to search for the reproduction desired information that should be reproduced. It can speed up.

In order to solve the above-mentioned problems, the invention according to claim 2 is the information reproducing apparatus according to claim 1, wherein the reproduction undesired information is a plurality of reproduction undesired unit information on a time axis. The detection means is configured to be continuous above, and the detection means includes the first boundary after the first boundary corresponding to the timing after a plurality of the unit times has elapsed from the timing at which the reproduction prohibition operation is executed, or the first boundary. The search information corresponding to each of the plurality of reproduction times each including one of the second boundaries is sequentially detected along the time axis, and the reproduction means such as the information reproducing unit detects the detected search information. Are configured to be reproduced in the order of detection.

Therefore, a plurality of reproduction times each including one of the first boundary and the second boundary after the first boundary corresponding to the timing after the lapse of a plurality of unit times from the timing when the reproduction prohibiting operation is executed. Since the search information corresponding to each is sequentially detected along the time axis and the detected search information is reproduced in the detection order, the reproduction desired information can be searched while the reproduction undesired information is intermittently reproduced. Thus, the reproduction desired information to be reproduced can be reached in a shorter time.

In order to solve the above-mentioned problems, the invention according to claim 3 is the information reproducing apparatus according to claim 2, wherein the operation means changes the timing from the timing when the reproduction inhibiting operation is executed. After that, it is used to set the number of the unit times included in the time until the timing corresponding to the first boundary or the second boundary corresponding to the search information detected first, and the detection of the pickup or the like is performed. Means correspond to the timing after the set number of the unit times have elapsed from the timing at which the reproduction prohibiting operation was executed, and sequentially detect the search information corresponding to each of the reproduction times along the time axis. Is configured as follows.

Therefore, the number of pieces of reproduction undesired unit information that are not detected after the timing when the reproduction inhibition operation is executed can be set in advance, so that the reproduction desired information to be reproduced can be reached more quickly.

In order to solve the above-mentioned problems, the invention according to a fourth aspect is the information reproducing apparatus according to the first aspect, wherein the detecting means such as a pickup is the first in which the reproduction inhibiting operation is executed. At least one of the first boundary and the second boundary corresponding to the second timing after a preset search time has elapsed from the timing is detected as the search information, and the reproducing means such as an information reproducing unit detects the detection. One of a plurality of the selected unit times is reproduced before the second timing on the time axis by the operation means.
When the detected reproduction operation to detect and reproduce the reproduction desired information corresponding to the timing is executed, the detection reproduction unit detects the reproduction desired information corresponding to the third timing and thereafter from the recording medium. And then played back.

Therefore, either the first boundary or the second boundary corresponding to the second timing when the search time has elapsed from the first timing when the reproduction inhibition operation is executed is detected as the search information and reproduced, and When the reproduction operation for detecting and reproducing the reproduction desired information corresponding to the third timing before the second timing is performed on the axis, the reproduction desired information corresponding to the third timing and thereafter is reproduced from the recording medium. Since it is detected and reproduced, the reproduction desired information to be reproduced can be quickly reached by omitting the detection of reproduction undesired information corresponding to the search time, and the reproduction desired information is returned from the second timing to the third timing. By starting the reproduction of information, it is possible to reproduce the reproduction desired information recorded after the reproduction undesired information from the beginning thereof.

In order to solve the above-mentioned problems, an invention according to a fifth aspect is the information reproducing apparatus according to the fourth aspect, wherein the operation means such as an operation input unit is the unit included in the search time. The detecting means, such as a pickup, is used to set the number of times, and the detecting means such as a pickup is provided with the first boundary or the first boundary corresponding to the second timing after the set number of the unit times have elapsed from the first timing. Two
It is configured to detect one of the boundaries as the search information.

Therefore, since the interval between the first timing and the second timing can be set, the interval between the first timing and the second timing can be set according to the attribute of the reproduction undesired information.

In order to solve the above problems, the invention according to claim 6 is the information reproducing apparatus according to any one of claims 1 to 5, wherein the reproduction undesired information is output as a commercial. The unit time is 30 seconds as well as the commercial information to be commercialized.

Therefore, it is possible to improve the convenience and speed of reproducing the required reproduction desired information without reproducing the commercial.

In order to solve the above-mentioned problems, the invention according to claim 7 is the information reproducing apparatus according to any one of claims 1 to 6, wherein the reproduction inhibiting operation and the detection reproducing operation are performed. It is realized by operating one operation unit included in the operation means such as the operation input means in mutually different operation modes.

Therefore, since the reproduction prohibited operation and the detected reproduction operation are distinguished by operating one operation section in different operation modes, it is possible to reproduce the required reproduction desired information while simplifying the operation means.

In order to solve the above-mentioned problems, according to the invention described in claim 8, only reproduction undesired unit information which is reproduction undesired information which is not desired to be reproduced and which is reproduced for a preset unit time. Or information for reproducing at least the reproduction desired information from a recording medium in which the reproduction undesired information including a plurality of pieces and the reproduction desired information desired to be reproduced are separated and recorded together on the time axis In the reproducing method, an operation step for performing a reproduction prohibiting operation for prohibiting reproduction of the reproduction undesired information from the recording medium, and the reproduction undesired operation when the reproduction prohibiting operation is executed in the operation step. A reproduction time set in advance including a first boundary which is a boundary between unit information, or a boundary between one reproduction undesired unit information and reproduction desired information subsequent to the reproduction undesired unit information. And a reproduction step set in advance including a second boundary, the detection step of detecting information corresponding to one of the reproduction times from the recording medium as search information, and reproducing the detected search information. And a reproduction step for detecting and reproducing the desired reproduction information after the reproduction prohibition operation is performed, and either the detection or the reproduction of the search information is stopped. A stop step, and a detection / reproduction step of detecting and reproducing the reproduction desired information corresponding to the detected reproduction operation from the recording medium when the detected reproduction operation is executed after the reproduction prohibition operation is executed. Prepare

Therefore, when the reproduction inhibition operation is executed,
The information corresponding to the reproduction time of either the reproduction time including the first boundary or the reproduction time including the second boundary is detected as search information and reproduced, and the detection reproduction operation is executed after the reproduction prohibition operation is executed. In this case, either detection or reproduction of the search information is stopped, and when the detection reproduction operation is executed after the reproduction prohibition operation is executed, the corresponding reproduction desired information is detected from the recording medium and reproduced. , It is possible to start the search for the desired reproduction information that should be reproduced subsequently while prohibiting the reproduction of unnecessary reproduction undesired information by performing the reproduction prohibition operation only once, and to search for the reproduction desired information that should be reproduced. It can speed up.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Next, preferred embodiments of the present invention will be described with reference to the drawings. The embodiment described below describes a case where the present invention is applied to a reproducing apparatus which reproduces information from a disc on which audio and image information is recorded.

As the disc to be mounted on the recording device,
For example, a DVD as an information medium capable of recording an information signal
(Digital Versatile Disc) is used. (I) Overall Configuration First, the overall configuration of the recording apparatus according to the embodiment will be described with reference to FIG.

FIG. 1 is a block diagram showing the overall structure of the reproducing apparatus P according to the embodiment.

As shown in FIG. 1, the reproducing apparatus P according to the embodiment includes an operation input unit 101 as an operating unit, a pickup 102 as a detecting unit, an information reproducing unit 103 as a reproducing unit, and a memory 104. , A system control unit 105 as a stopping unit, a demultiplexer 106, and an MPEG (Moving Picture Experts Group)
Decoder 107, audio decoder 108, D / A (Dig
ital / Analog) converter 109, display unit 110,
It is configured to include.

Next, the operation of the reproducing apparatus P according to this embodiment will be described.

When the disc DK is inserted, the disc D
The management information on K is read via the pickup 102, demodulated by the information reproducing unit 103, and the system control unit 105
It is stored in the memory 104 via. Here, the management information is a recording address of the video / audio information on the disc, an attribute of the video / audio information, information of an empty area, and the like.

The system control unit 105 includes an operation input unit 10
Monitor whether 1 is operated by the user.

At the time of reproduction, the system control unit 105 obtains a recording address having desired video / audio information from the management information on the disk DK stored in the memory 104, and the position of the pickup 102 is set via the information reproduction unit 103. Information is read from the disk DK.

The read information is demodulated by the information reproducing section 103, demultiplexed by the demultiplexer 106 into video information, audio information, management information, etc.
It is input to the MPEG decoder 107, audio decoder 108, and system control unit 105.

MPEG decoder 107, audio decoder 1
Reference numeral 08 decompresses and decodes video information and audio information, respectively, by the control signal from the system control unit 105 and the information on the compressed input data.

The decoded video and audio digital signals are converted into analog signals by the D / A converter 109 and output as video and audio signals. (II) First Embodiment A first embodiment of the present invention will be described with reference to FIGS. 1 and 2 based on the overall configuration described above.

FIG. 2 is a flow chart showing the operation of this embodiment.

In the present embodiment, on the disc DK, a program that the user desires to reproduce and a CM that is inserted in the program are recorded. In addition, the VOBU (Video Object Unit) in this operation description has a reproduction time of 0.4 seconds or more and 1 second or less, and is composed of video information, audio information, sub-video information, and control information for controlling them. This is the minimum playback unit.

First, when a reproduction key (not shown) of the operation input unit 101 is operated by the user, normal reproduction is performed (S10).

During the normal reproduction of S10, the system control unit 1
05 monitors whether a CM skip key (not shown) of the operation input unit 101 has been operated (S11).

In the determination of S11, the operation input unit 101
When the CM skip key (not shown) is operated by the user (S11: Yes), the system control unit 105
VOB at the time of key operation from the management information in the memory 104
After obtaining the last address of U, the information reproducing unit 103 is controlled to read up to the last address of the VOBU (S1
2).

The system control unit 105 uses the time, which is about 58 seconds after the current reproduction time, as the search time and stores it in the memory 10.
When the address of the VOBU at the search end time is obtained from the management information in 4, and the reading up to the last address of the VOBU in S12 is completed, the information reproducing unit 103 is instructed to search and read the address about 58 seconds later. Do (S
13).

Here, since the CM is usually continuous for 2 or more in 30-second units, the first search is N times 30 seconds (N is a natural number of 2 or more), and the CM and the program are switched. In order to make it easier for the user to find, it is desirable to search for a few seconds before the part where there is a possibility of switching and play from there. Therefore, in this embodiment, N
= 2, and the recording address is searched about 58 seconds later, which is about 2 seconds before 30 seconds × 2.

The system controller 105 monitors whether or not the search in S13 is completed (S14).

In the determination of S14, if the search of the recording address is not completed (S14: No), the system control unit 105 monitors whether or not a reproduction key (not shown) of the operation input unit 101 is operated ( S16).

In the determination of S16, the operation input unit 101
When a reproduction key (not shown) is operated (S16:
Yes), the system control unit 105, the information reproduction unit 103
To stop the search until then, obtain the continuation address of the VOBU read last in S12 from the management information in the memory 104, and instruct the information reproducing unit 103 to search and read the continuation address (S20). .

After the end of the search in S20, the normal reproduction is started (S10).

In the determination of S16, the operation input unit 101
If the playback key (not shown) is not operated (S1
6: No) and returns to S14 to determine whether or not the search in S13 is completed.

If it is determined in S14 that the search for the recording address has been completed (S14: Yes), the information reproducing unit 103 starts reading through the pickup 102, demodulates the read data, and demultiplexer 10 receives.
6 and input to the MPEG decoder 107, the audio decoder 108, and the system control unit 105, respectively (S
15).

When the reading of S15 is started, the system control unit 105 determines whether or not the output of the decoded image of the currently read portion is started, the MPEG decoder 1
The decoding information of 07 is monitored (S17).

When the output of the decoded image of the currently read portion is not started in the determination of S17 (S1
7: No), the system control unit 105, the operation input unit 10
It is monitored whether or not the reproduction key 1 (not shown) is operated (S19).

In the determination of S19, the operation input unit 101
When a reproduction key (not shown) is operated (S19:
Yes), the system control unit 105 obtains the continuation address of the VOBU last read in S12 from the management information in the memory 104, and instructs the information reproducing unit 103 to search and read the continuation address (S20).

After the search in S20 is completed, the normal reproduction is started (S10).

In the determination of S19, the operation input unit 101
If the playback key (not shown) is not operated (S1
9: No), the process returns to S17, and the decode information of the MPEG decoder 107 is monitored to determine whether the output of the decoded image of the currently read portion has started.

If it is determined in S17 that the output of the decoded image of the currently read portion is started (S17).
17: Yes), the system control unit 105 monitors whether or not a reproduction key (not shown) of the operation input unit 101 has been operated (S18).

In the determination of S18, the operation input unit 101
If a playback key (not shown) is operated (S18: Ye
s), the reading is continuously continued as it is, and the normal reproduction is performed (S10).

In the determination of S18, the operation input unit 101
Is not operated (S18:
No), when the reading of the VOBU after about 4 seconds has been completed (S21), the system control unit 105 again sets the memory 1
The address about 26 seconds after the next is found from the management information in 04, and the information reproducing unit 103 is instructed to search and read the address after the next 26 seconds (S22).

It should be noted that the GOP (Group
Of Picture) is performed in units. Here, GOP is M
It is the smallest image unit that can be independently reproduced and is defined in the PEG2 standard.

After that, the process returns to S14 and the above operation is performed.

In MPEG, the characteristics include a high data rate, a slow search, a slow data reading speed, a slow MPEG decoding processing speed, and the like. It may be possible that the display of the time until the output of the first image of the next reproduction portion is not in time. However, if the next image is not decoded, the MPEG decoder 107 displays the last image until the next image can be output. By continuing to output the image, the final image is stopped only momentarily, so that there is no visual discomfort.

Also, the portion that is normally reproduced by operating the reproduction key (not shown) of the operation input unit 101 during the search or reading is not the portion that is actually read, but the image that is actually output, The continuous portion is controlled to be continuously reproduced.

For example, in S16 and S19 described above, the portion to be reproduced next is being searched or read, but the portion to be reproduced next is still MPEG-decoded and no image is output.

At this point, if a play key (not shown) of the operation input unit 101 is operated, the sequel to the VOBU read last in S12 is searched and reproduced, so that an operation suitable for the operator's intention can be performed. It will be possible.

FIGS. 3A and 3B specifically show the above operation.

In FIG. 3 (A), by operating the CM skip key once, after the skip of about 58 seconds, the normal reproduction of 4 seconds and the skip of 26 seconds are repeated twice, and then the user selects the program. It shows that he has found his head and started to play normally from there.

First, during normal playback (S10), since the program is switched to CM, the user operates the CM skip key once (S11) to skip to an address about 58 seconds later. (S13), and then normal reproduction is performed for about 4 seconds (S15).

During that time, since the playback key is not pressed, the address corresponding to the playback time after about 26 seconds is skipped (S22), and the process returns to S14 again to perform the normal playback operation for about 4 seconds and the playback after about 26 seconds. After repeating the skip operation (S14 to S22) twice to the address corresponding to the time,
Approximately 120 seconds after the initial operation of the CM skip key, the user finds the beginning of the program (S18) and shifts to the normal reproduction of S10 from there.

FIG. 3B shows an output image in this embodiment.

As shown in FIG. 3B, when the CM skip key operation is performed, a series of skipped images from that operation until the beginning of the program is found and the normal reproduction is not actually reproduced.

As described above, the search is fast because it is sent in skips, and the commercial usually lasts 1 minute or more at the shortest. Therefore, the first skip of the first time is a predetermined natural number N times about 30 seconds (this embodiment). Then, by setting N = 2), the beginning of the program can be searched faster.

Further, if the CM skip key is pressed once,
Playback is skipped every 30 seconds, so even if you don't know the length of the commercial
Only one skip operation is required.

Also, since the portion which is highly likely to change from commercial to program is normally reproduced by skipping every 30 seconds, the beginning of the program is easy to find, and the reproduction key should be operated at the time of changing from CM to program. The user can then easily continue watching the program.

In the present embodiment, the search destination address is obtained from the disc management information. However, the DVD-VIDEO
Like VOB before and after on the recorded stream
When the relative address of U is recorded, it is possible to obtain the address of the search destination from the information on this stream.

During the above operation, the output of the audio decoder 108 is output from the system control unit 105 except during the normal reproduction operation.
It may be muted by the instruction of.

Further, the first skip time after the operation of the CM skip key may be set by the user. For example, when the user operates the operation input unit 101, a setting screen is displayed by a GUI (Graphical User Interface). TV (not shown) via the display unit 110 or video signal output
It is also possible to output to a monitor and change by a user by operating the operation input unit 101.

Note that the normal reproduction instruction from the user is
Instead of using the playback key, the CM skip key or another predetermined key may be set.

Next, FIG. 4 shows a modification of this embodiment.
Will be explained. In the modified embodiment described below, the CM skip at regular time intervals in the present embodiment is fast-forward reproduction.

FIG. 4 is a flow chart showing the operation of this modification.

First, normal reproduction is performed by operating a reproduction key (not shown) of the operation input unit 101 (S3).
0).

During the normal reproduction of S30, the system control unit 1
05 monitors whether a CM skip key (not shown) of the operation input unit 101 has been operated (S31).

In the determination of S31, the operation input unit 101
When the CM skip key (not shown) is operated by the user (S31: Yes), the system control unit 105
VOB at the time of key operation from the management information in the memory 104
After obtaining the last address of U, the information reproducing unit 103 is controlled to read up to the last address of the VOBU (S3
2).

The system control unit 105 stores the time about 58 seconds after the current reproduction time as the fast-forward end time in the memory 104, and the management information in the memory 104 causes the start of the next VOBU about 2 seconds later, for example. Find the address,
I-picture (intra-coded picture) of the VOBU
The information reproducing unit 103 is instructed to read the data until the end of the data. An I-picture is a frame image that can reproduce a complete frame image only with its own image. Read by the information reproducing unit 103
The I-picture data is demultiplexed by the demultiplexer 106, input to the MPEG decoder 107, the I-picture is decoded, and displayed as a fast-forward reproduction screen (S33).

The system controller 105 monitors whether or not the image reproduction time has reached the fast-forward end time (S34).

In the determination of S34, when the fast-forward reproduction is not completed (S34: No), the system control unit 105
Monitors whether or not a reproduction key (not shown) of the operation input unit 101 is operated before the image reproduction time of S33 reaches the fast-forwarding end time (S35).

In the determination of S35, the operation input unit 101
When a playback key (not shown) is operated (S35: Y
es), the system control unit 105 causes the information reproducing unit 103 to stop the fast-forward reproduction, finds the start address of the next VOBU from the management information in the memory 104, and then the information reproducing unit 1
03 is instructed to search and read the address. The information reproducing unit 103 reads out after the search is completed and performs normal reproduction (S30).

In the determination of S35, the operation input unit 101
If the playback key (not shown) is not operated (S35:
No), the determination of S34 is performed.

In the judgment of S34, if the image reproduction time of S23 reaches the fast-forward end time (S34: Ye
s), the subsequent address is obtained from the management information in the memory 104, and the information reproducing unit 103 is instructed to search and read the subsequent address. The information reproducing unit 103 reads out after the search is completed and performs normal reproduction (S36).

The system control section 105 stores the time about 4 seconds later as the normal reproduction end time in the memory 104.

Here, the reproduction of about 4 seconds is performed by the GO of MPEG.
It is performed in P units.

The system controller 105 monitors whether or not the image reproduction time in S36 has reached the normal reproduction end time (S37).

In the determination of S37, before the normal reproduction of the image of S36 is completed (S37: No), the system control unit 105 monitors whether or not a reproduction key (not shown) of the operation input unit 101 is operated (S38). ).

In the determination of S38, the operation input unit 101
When a reproduction key (not shown) is operated (S38:
Yes), and shifts to the normal reproduction of S10.

In the determination of S38, the operation input unit 101
If the playback key (not shown) is not operated (S3
8: No), the determination of S37 is performed.

In the judgment of S37, if the reproduction time of the image of S36 reaches the normal reproduction end time (S37: Yes
s), the system control unit 105 obtains the last address of the VOBU at the time of key operation from the management information in the memory 104, controls the information reproduction unit 103, and reads to the last address of the VOBU.

The system control unit 105 stores the time about 26 seconds after the current reproduction time in the memory 104 as the fast-forward end time, and the management information in the memory 104 stores the beginning of the next VOBU about 2 seconds later, for example. Find the address,
The information reproducing unit 103 is instructed to read the data until the I-picture data of the VOBU is completed. The I-picture data read by the information reproducing unit 103 is demultiplexed by the demultiplexer 106,
It is input to the MPEG decoder 107, the I-picture is decoded, and displayed as a fast-forward playback screen (S3
9).

After that, the process returns to S34 and the above operation is performed.

FIG. 5 shows an output image in this modification.

As shown in FIG. 5, there is a screen that is not actually reproduced by a series of fast-forward reproductions from the operation of the CM skip key to the beginning of the program from the operation to the normal reproduction. (III) Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS. 1 and 6.

The overall structure of the reproducing apparatus according to the present embodiment is the same as that of the first embodiment as shown in FIG. 1, and therefore the description thereof is omitted here.

FIG. 6 is a flow chart showing the operation of the second embodiment of the present invention.

First, a normal reproduction is performed by operating a reproduction key (not shown) of the operation input unit 101 (S4).
0).

During normal reproduction in S40, the system control unit 1
Reference numeral 05 monitors whether or not a CM skip key (not shown) of the operation input unit 101 has been pressed (S41).

In the determination of S41, the operation input unit 101
When the CM skip key (not shown) is continuously pressed M times by the user (S41: Yes), the system control unit 105 obtains the last address of the VOBU at that time from the management information in the memory 104 to obtain the information. Playback unit 103
To read the last address of the VOBU.

From the number M of times the CM skip key has been operated, the system control unit 105 determines (30
× M-2) Calculate the time after 2 seconds as the search end time,
VO of the search end time from the management information in the memory 104
After obtaining the BU address, the information reproducing unit 103 is controlled to instruct the search and read of the address (S42).

Here, in order to make it easier for the user to find the changeover between the CM and the program as in the first embodiment,
It is desirable to search for a few seconds before the part where there is a possibility of switching and play from there. Therefore, in this embodiment, an address about 2 seconds before M times 30 seconds is searched.

When reading is started, the read information is demodulated by the information reproducing unit 103, and the MPEG decoder 107
And audio decoder 108 respectively decode the
It is output and reproduced as video and audio through the / A converter 109 (S43).

During that time, the system control unit 105 monitors whether or not the CM skip key (not shown) of the operation input unit 101 is continuously pressed for a predetermined time (S44).

When the CM skip key is not continuously pressed for a predetermined time in the determination of S44 (S44: N
o), it is determined whether or not 4 seconds have elapsed since the reproduction was started (S46).

In the judgment of S46, if 4 seconds have elapsed after the reproduction was started (S46: Yes), the normal reproduction is performed as it is (S40).

In the judgment of S46, if 4 seconds have not elapsed since the reproduction was started (S46: No), the judgment of S44 is made.

In the determination of S44, if the CM skip key is continuously pressed for a predetermined time before the lapse of 4 seconds from the start of reproduction (S44: Yes), the system control unit 105 causes the search end time to be reached. 30 seconds before is the new search end time, the address of the VOBU at the new search end time is obtained from the management information in the memory 104, the information reproducing unit 103 is controlled, and the search and read of the address are commanded ( S45).

After that, the process returns to S43 and the above operation is repeated.

FIG. 7 specifically shows the above operation.

In FIG. 7, by operating the CM skip key four times, the beginning of the program is found by skipping for 120 seconds and performing a backward search for 30 seconds after normal playback for a fixed time, and then shifts to normal playback. It is shown that.

First, during normal reproduction (S40), C from the program
By switching to M, the user operates the CM skip key four times (S41). From that point, 11
Skip to the address 8 (30 × 4-2) seconds later (S
42) and normal reproduction is performed from there (S43).

Since the program has already been reproduced, the user skips to the address corresponding to the reproduction time 30 seconds before by pressing and holding the CM skip key within 4 seconds from the start of normal reproduction (S44). (S4
5) Then, the normal reproduction of S43 is started again.

Since the user was able to find the switching between the CM and the program by the reproduction, the user can switch to the normal reproduction of S40 after 4 seconds elapse without pressing and holding the CM skip key (S46). To do.

As described above, in this embodiment, in addition to the CM skip in the forward direction, the CM skip function in the backward direction is provided. Therefore, when the CM is skipped in the forward direction, the commercial is switched to the program too much. Even in
You can easily go back.

Also, by setting the CM skip in the reverse direction to 30 seconds, the possibility of conforming to the boundary between the CM and the program increases.

Further, since the reverse CM skip is accepted only for a predetermined time (four seconds in the present embodiment) after shifting from the search to the reproduction, erroneous operation during normal reproduction is reduced.

In the present embodiment, the search destination address is obtained from the disc management information. However, the DVD-VIDEO
Like VOB before and after on the recorded stream
When the relative address of U is recorded, it is possible to obtain the address of the search destination from the information on this stream.

In the above example, the backward CM skip is performed on the basis that the CM skip key is continuously pressed for a predetermined time. However, a key dedicated to the backward CM skip is attached or another key such as the previous key is used. It can also be used as a key to indicate the direction.

Further, the reverse CM skip may be received not only within a predetermined time after the shift from the search to the reproduction but also during the normal reproduction.

Further, the backward CM skip time is set to 30.
It is also possible to use 15 seconds instead of seconds, or the number of times the key is pressed × 30 seconds or the number of times the key is pressed × 15 seconds.

[0125]

As described above, according to the first aspect of the present invention, when the reproduction prohibition operation is executed, one of the reproduction time including the first boundary and the reproduction time including the second boundary. The information corresponding to the playback time of is detected as search information and played back, and when detection playback operation is performed after playback inhibition operation is performed, either detection or playback of search information is stopped, and playback is performed. When the detected reproduction operation is executed after the prohibition operation is executed, the corresponding reproduction desired information is detected and reproduced from the recording medium, so that unnecessary reproduction undesired information is prohibited by performing the reproduction prohibition operation only once. At the same time, it is possible to start the subsequent search for the reproduction desired information to be originally reproduced, and to speed up the search for the reproduction desired information to be reproduced.

According to the second aspect of the present invention, either the first boundary after the first boundary or the second boundary corresponding to the timing after a lapse of a plurality of unit times from the timing at which the reproduction inhibiting operation is executed. Search information corresponding to a plurality of playback times each including one is sequentially detected along the time axis, and the detected search information is played back in the order of detection, so playback undesired information is played back intermittently. The desired information can be searched, and the desired reproduction information to be reproduced can be reached in a shorter time.

According to the third aspect of the invention, the number of pieces of reproduction undesired unit information that are not detected after the timing when the reproduction inhibition operation is executed can be set in advance, so that the reproduction desired information to be reproduced more quickly can be selected. Can be reached

According to the fourth aspect of the present invention, either the first boundary or the second boundary corresponding to the second timing when the search time has elapsed from the first timing when the reproduction inhibiting operation is executed is used as the search information. When the detection / reproduction operation of detecting and reproducing and detecting and reproducing the reproduction desired information corresponding to the third timing before the second timing on the time axis is executed, after the third timing. Since the corresponding reproduction desired information is detected and reproduced from the recording medium, the reproduction desired information to be reproduced can be quickly reached by omitting the detection of the reproduction undesired information corresponding to the search time, and the second timing Thus, by returning to the third timing and starting the reproduction of the reproduction desired information, the reproduction desired information recorded subsequent to the reproduction undesired information can be reproduced from the beginning thereof.

According to the fifth aspect of the invention, since the interval between the first timing and the second timing can be set, the first timing and the second timing can be set in accordance with the attribute of the reproduction undesired information. You can set the interval.

According to the sixth aspect of the present invention, it is possible to improve the convenience and speed in reproducing the required reproduction desired information without reproducing the commercial.

According to the invention described in claim 7, since the reproduction prohibited operation and the detected reproduction operation are distinguished by operating one operation section in different operation modes, the necessary reproduction can be achieved while simplifying the operation means. Desired information can be reproduced.

According to the invention described in claim 8, when the reproduction prohibiting operation is executed, the information corresponding to either the reproduction time including the first boundary or the reproduction time including the second boundary is displayed. Detected as search information and played back, detected after playback prohibition operation is performed.When playback operation is performed, either detection of search information or playback is stopped, and detection is performed after playback inhibition operation is executed. When the reproduction operation is executed, the corresponding reproduction desired information is detected and reproduced from the recording medium. Therefore, it is necessary to perform the reproduction prohibition operation only once to prohibit the reproduction of the unnecessary reproduction undesired information and perform the subsequent original reproduction. It is possible to start the search for the reproduction desired information and speed up the search for the reproduction desired information to be reproduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing the overall configuration of a reproducing apparatus of the present invention.

FIG. 2 is a flowchart showing an operation of the first exemplary embodiment of the present invention.

FIG. 3 is a diagram illustrating an operation example of the first embodiment of the present invention.

FIG. 4 is a flow chart showing an operation of a modification of the first exemplary embodiment of the present invention.

FIG. 5 is a diagram illustrating an operation example of a modified example of the first exemplary embodiment of the present invention.

FIG. 6 is a flowchart showing an operation of the second exemplary embodiment of the present invention.

FIG. 7 is a diagram showing an operation of the second exemplary embodiment of the present invention.

[Explanation of symbols]

P ・ ・ ・ Playback device DK ... Disc 101: Operation input section 102 ... Pickup 103 ... Information reproducing unit 104 ... Memory 105 ... System control unit 106 ... Demultiplexer 107 ... MPEG decoder 108 ... Audio decoder 109 ・ ・ ・ D / A converter 110 ... Display

Continued front page    F-term (reference) 5C053 FA24 GB06 GB37 HA40 JA22                       KA01 KA24 KA25                 5D077 AA22 AA23 BA09 BA12 CA02                       CB13 DC03 EA40

Claims (8)

[Claims] 1. Reproduction undesired information, which is reproduction undesired information that is not desired to be reproduced and is configured to include only one or a plurality of reproduction undesired unit information that is reproduced for a preset unit time, and reproduction. In the information reproducing apparatus for reproducing at least the reproduction desired information from the recording medium in which the desired reproduction desired information and the desired reproduction desired information are separated and recorded together on the time axis, the reproduction of the reproduction undesired information from the recording medium is performed. An operation unit for performing a reproduction prohibition operation for prohibiting the reproduction, and a preset value including a first boundary which is a boundary between the reproduction undesired unit information when the reproduction prohibition operation is executed by the operation unit. Reproduction time, or a reproduction time that is preset including a second boundary that is a boundary between one piece of the reproduction undesired unit information and the piece of reproduction desired information that follows the reproduction undesired unit information. Detecting means for detecting information corresponding to one of the reproduction times from the recording medium as search information, reproducing means for reproducing the detected search information, and after performing the reproduction prohibiting operation, When the reproduction operation for detecting and reproducing the reproduction desired information is executed by the operation means, the stop means for stopping either the detection or the reproduction of the search information and the reproduction prohibition operation are executed. When the detected reproduction operation is executed later, a detection reproduction unit that detects the reproduction desired information corresponding to the detected reproduction operation from the recording medium and reproduces the information, the information reproducing apparatus. 2. The information reproducing apparatus according to claim 1, wherein the reproduction undesired information is configured by a plurality of the reproduction undesired unit information being continuously arranged on a time axis, and the detection means is A plurality of reproduction times each including one of the first boundary and the second boundary after the first boundary corresponding to the timing after a plurality of the unit times have elapsed from the timing when the reproduction prohibiting operation is executed An information reproducing apparatus characterized in that the search information corresponding to each of the above is sequentially detected along a time axis, and the reproducing means reproduces the detected search information in the detection order. 3. The information reproducing apparatus according to claim 2, wherein the operating unit corresponds to the first boundary corresponding to the search information detected first after the timing when the reproduction prohibiting operation is executed. Alternatively, the detection unit is used to set the number of the unit times included in the time up to the timing corresponding to the second boundary, and the detection unit sets the set number of times from the timing when the reproduction prohibiting operation is executed. An information reproducing apparatus, wherein the search information corresponding to the timing after the unit time has elapsed and corresponding to the reproduction time are sequentially detected along a time axis. 4. The information reproducing apparatus according to claim 1, wherein the detecting unit corresponds to the first timing corresponding to a second timing after a preset search time has elapsed from the first timing at which the reproduction inhibiting operation is executed. While detecting either the boundary or the second boundary as the search information, the reproducing means reproduces the detected one, and further, in the operating means, the second timing on the time axis. When the detection / reproduction operation to detect and reproduce the reproduction desired information corresponding to the third timing corresponding to the time corresponding to one or a plurality of the unit times is executed, the detection / reproduction means An information reproducing apparatus characterized in that the reproduction desired information corresponding to the third timing and thereafter is detected from the recording medium and reproduced. 5. The information reproducing apparatus according to claim 4, wherein the operating unit is used to set the number of the unit times included in the search time, and the detecting unit uses the first timing. An information reproducing apparatus, wherein one of the first boundary and the second boundary corresponding to the second timing after the set number of the unit times has been detected as the search information. 6. The information reproducing apparatus according to claim 1, wherein the reproduction non-desired information is commercial information to be output as a commercial, and the unit time is 30 seconds. An information reproducing apparatus characterized by the above. 7. The information reproducing apparatus according to claim 1, wherein the reproduction prohibiting operation and the detected reproducing operation are different operations performed on the same operation unit included in the operation means. An information reproducing apparatus, which is realized by operating each of the modes. 8. A reproduction undesired information composed of only one or a plurality of reproduction undesired unit information which is undesired reproduction undesired and is reproduced only for a preset unit time, In the information reproducing method of reproducing at least the reproduction desired information from a recording medium on which the desired reproduction desired information and the desired reproduction desired information are separated and recorded together on the time axis, the reproduction of the reproduction undesired information from the recording medium is performed. An operation step for performing a reproduction prohibition operation for prohibiting the reproduction prohibition operation, and when the reproduction prohibition operation is executed in the operation step, the reproduction step is preset including a first boundary which is a boundary between the reproduction undesired unit information. Reproduction time, or a reproduction time that is preset including a second boundary that is a boundary between one piece of the reproduction undesired unit information and the piece of reproduction desired information that follows the reproduction undesired unit information. A detection step of detecting information corresponding to one of the reproduction times from the recording medium as search information, a reproduction step of reproducing the detected search information, and a reproduction step after the reproduction inhibition operation is executed. When the reproduction operation is performed by detecting the reproduction desired information and the reproduction is performed, a stop process step that stops either the detection or the reproduction of the search information, and the detection after the reproduction prohibition operation is performed. A detection / reproduction step of detecting the reproduction request information corresponding to the detected reproduction operation from the recording medium and reproducing the reproduction desired information when the reproduction operation is executed.