CN1124603C - Video CD. Reproduction device - Google Patents
Video CD. Reproduction device Download PDFInfo
- Publication number
- CN1124603C CN1124603C CN 99110662 CN99110662A CN1124603C CN 1124603 C CN1124603 C CN 1124603C CN 99110662 CN99110662 CN 99110662 CN 99110662 A CN99110662 A CN 99110662A CN 1124603 C CN1124603 C CN 1124603C
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- China
- Prior art keywords
- video disc
- information
- toc
- password
- identifying information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
To provide a video CD player capable of limiting the playing of video/ audio recorded in a predetermined video CD. Information indicating total performance time in TOC(table of contents) is stored beforehand as identification information for specifying a playing-limited video CD in a disk ID memory (26). A CPU (24) makes determination as to the inclusion of the information indicating the total performance time, which is extracted as identification information from the TOC of the currently loaded video CD in the identification information stored in the disk ID memory (26). When the non-inclusion of the extracted information indicating the total performance time in the identification information stored in the disk ID memory (26) is determined, a CD signal processing circuit (22) and a VCD/ MPEG signal processing circuit (23) execute the playing of the currently loaded video CD only if the determination is made by the CPU (24).
Description
Technical field
The present invention relates to video disc (VCD) (Video Compact Disk) reproducer, limit the video disc reproducer that it reappears processing thereby relate in particular to lock to the video disc that writes down image restriction reproduction unsuitable for children for the adult.
Background technology
In the image that provides by satellite broadcasting, CATV (cable television), packet medium etc., comprise sometimes violence or property scene etc. this only for the adult watch, image unsuitable for children.The image information that contains this image from the viewpoint of protecting young people, is necessary to limit its reproduction.With the occasion that the forms of broadcasting send, it is effective having the lock television receiver of (ヘ ァ レ Application Le ロ ッ Network) function of protectiveness in this image informations such as satellite broadcasting or CATV (cable television).This function can lock in advance to specific channel or program, thus the image information that restrict reproduction sends through this channel.Fig. 5 represents the formation block diagram that protectiveness adds the television receiver of lock function that has that discloses in " spy opens flat 8-214235 number " communique.
Among Fig. 5, processing television signals portion 51 after receiving television radio wave, output image signal and voice signal.The picture signal of output only when being connected by the analog switch 53 of MPU52 control on/off, just inputs to image displaying part 54.On the other hand, the voice signal of output only when being connected by the analog switch 55 of MPU52 control on/off, just inputs to loudspeaker 56.
Look the hearer and operate telepilot 57, select the channel of liking as this television receiver annex.Telepilot 57 produces expression and looks the signal (remote signal hereinafter referred to as) that the hearer selects channel and be sent to the remote signal acceptance division 58 that is provided with on the television receiver main body side.Remote signal transfers to MPU52 after being received by remote signal acceptance division 58.
MPU52 judges according to canned data in advance in the storage inside portion (not shown) whether the represented channel of remote signal (promptly looking the selected channel of hearer) locks.Be judged to be this channel when locking at MPU52, analog switch 53 and 55 is disconnected.Thereby image displaying part 54 is display image not, and loudspeaker 56 is output sound not also.On the other hand, when MPU52 judges that this channel does not lock, connect analog switch 53 and 55.Thus, image displaying part 54 shows by looking the image that channel provided that the hearer selects.Again, loudspeaker 56 is provided by the sound that provides simultaneously with this image.
In having the television receiver that protectiveness adds lock function, be that unit locks with the channel, thereby be effective the image information that sends with the forms of broadcasting.But, in the image that provides by packet medium such as CDs, be necessary that to look the dish that the hearer freely buys be that unit locks, thereby the protectiveness that is disclosed in the above-mentioned communique adds lock function and becomes invalidly, be necessary to use the protectiveness of other method to add lock function.
As a kind of DVD (Digital Video Disk) of CD, its standard consideration protectiveness adds lock function and formulates.That is, in the DVD form, setting is used for the customizing messages district that protectiveness locks.But other CDs (being video disc) are formulated its standard and are not considered that protectiveness adds lock function, thus, wish that also appending protectiveness in the video disc playback device adds lock function, thereby can the video disc that will limit reproduction be locked.
Summary of the invention
Thereby, the object of the present invention is to provide a kind of can the video disc that will limit reproduction being locked, thereby the video disc reproducer of the image that is provided by this video disc is provided in restriction.
The 1st invention is a kind of video disc reproducer, and this video disc is recording image information and as the catalogue TOC of the index information of this image information at least; This video disc reproducer comprises:
The playing time in contained total playing time, total road number or the 1st road will limit the identifying information of the video disc of reproduction as identification among the described TOC of preliminary election, and stores the storage part of the identifying information of the video disc that will limit reproduction;
Among the TOC that from the video disc of present loading, writes down, extract the extracting part of the information suitable with identifying information;
Judge whether information that described extracting part extracts is included in the judging part in the identifying information of described storage portion stores;
Only when information that the described extracting part of described judgement section judges extracts is not included in the identifying information of described storage portion stores, just the image information that writes down in the video disc that loads at present is reproduced to the reproduction portion of image.
In above-mentioned the 1st invention, the storage portion stores identifying information.In other words, the video disc of storage portion stores restriction reproduction.Judging part is carried out above-mentioned action, thus, can judge whether the video disc of present loading should limit the CD of reproduction.Reproduction portion carries out above-mentioned action, and the result does not reappear the video disc that restriction reappears.Like this, the video disc of storage portion stores be can't help this video disc reproducer and is reappeared.Thereby this video disc reproducer can only the video disc of image information unsuitable for children locks for the adult watches to comprising, and limits this video disc and reappears.Thus, can provide and have the video disc reproducer that protectiveness adds lock function.
The 2nd invention is subordinated to the 1st invention, and wherein, described TOC comprises the information of total playing time of the image information of representing internal record; The information of the total playing time of described expression is as described identifying information.
In above-mentioned the 2nd invention, use the intrinsic to a certain degree total playing time of each video disc to represent information, thereby the video disc playback device can be distinguished the video disc that limits the video disc that reappears or do not limit reproduction as identifying information.
The 3rd invention is a kind of video disc reproducer, and this video disc is recording image information and as the catalogue TOC of this image information index information at least; This video disc reproducer comprises:
The playing time in contained total playing time, total road number or the 1st road will limit the identifying information of the video disc of reproduction as identification among the described TOC of preliminary election, and stores the 1st storage part of the identifying information of the video disc that will limit reproduction;
The 2nd storage part of the password of the video disc that will limit reproduction is permitted or forbidden reappearing to storage representation;
Among the TOC that from the video disc of present loading, writes down, extract the extracting part of the information suitable with identifying information;
Judge whether information that described extracting part extracts is included in the 1st judging part in the identifying information of being stored in described the 1st storage part;
The password of judging input whether with described the 2nd storage part in the 2nd consistent judging part of password stored;
Reproduction portion, only the information that extracts when the described extracting part of described the 1st judgement section judges is not included in the identifying information of storing in described the 1st storage part, and when the password of storing in the password of the described input of described the 2nd judgement section judges and described the 2nd storage part is consistent, just the image information that writes down in the video disc that loads at present is reproduced to image.
Above-mentioned the 3rd invention can obtain and the same effect of the 1st invention, and then, the 2nd storage portion stores password, for example, the video disc that loads at present in the 1st judgement section judges is when limiting the CD that reappears, if the password of input is consistent with the password in the 2nd storage part, then this video disc playback device reappears the video disc that loads at present.Thus, only limit to know the user of password, but the image that is comprised in the video disc that the audiovisual restriction reappears.
The 4th invention is subordinated to the 3rd invention, and wherein, described TOC comprises the information of total playing time of the image information of representing internal record; The information of the total playing time of described expression is as described identifying information.
Above-mentioned the 4th invention has and the same effect of above-mentioned the 2nd invention, detailed here.
Description of drawings
Fig. 1 is recorded in video disc to introduce the TOC form of the subcode portion that distinguishes and the example of TOC thereof.
Fig. 2 is the formation block diagram of the video disc reproducer of an example of the present invention.
Fig. 3 is the action flow chart that is shown in the video disc reproducer of Fig. 2.
Fig. 4 is that processing removed in the password that is shown in the video disc reproducer of Fig. 2, password upgrades processing and disc identification information is upgraded the process flow diagram of handling.
Fig. 5 had to protect the formation block diagram that anti-property adds the television receiver of lock function in the past.
Embodiment
Hereinafter, with reference to accompanying drawing, example of the present invention is described.
At first, video disc is illustrated.As everyone knows, the presumptive area at video disc writes down single image information or image/sound information.And these image/sound information are encoded according to the MPEG standard.The district of introducing is arranged in the inboard in image/sound information recording zone.Index information (TOC (Table Of Contents)) in subcode portion record presentation video/acoustic information content of introducing the district.Fig. 1 represents the example of this TOC form and TOC.In Fig. 1, TOC roughly comprises POINT, PMIN, PSEC and PFRAME.For example, shown in Fig. 1 (b), when POINT was A2, PMIN, PSEC and PFRAME were recorded in total playing time of image/sound information on the video disc etc. for expression.
Fig. 2 is the formation block diagram of the video disc reproducer of an example of the present invention.In Fig. 2, the video disc reproducer comprises: CD (CD) loading bin 21, CD signal processing circuit 22, VCD/MPEG signal processing circuit 23, CPU24, key input switch 25, dish ID (identifier) storer 26, password storer 27.
Key input switch 25 is user interfaces, and it comprises " PLAY " (broadcast), " STOP " (stopping), " RETURN " (returning) and ten keys such as numeral.
In CD ID storer 26, storage is used to discern the dish identifying information of the video disc that will limit reproduction.In this example, can adopt the information of total playing time of setting among the TOC that is shown in Fig. 1 to coil identifying information as this.Usually, total each video disc difference of playing time is an eigenvalue.Thus, the information that adopts the total playing time of expression is during as the dish identifying information, and the video disc reproducer is easy to discern the video disc that will limit reproduction.
Password stored in the password storer 27.This password as described later, can be used for various purposes, but generally is used for discerning the user that audiovisual is recorded in the image/sound information that video disc write down of restriction reproduction.
Then, with reference to the process flow diagram of Fig. 3, the action of video disc reproducer is described.In case video disc is loaded into CD loading bin 21 (Fig. 3 step S31), CD signal processing circuit 22 is action under CPU24 control just.CD signal processing circuit 22 is read in the video disc of loading, is recorded in the TOC that introduces district subcode portion.The TOC that reads exports CPU24 to.If CPU24 reads in TOC from CD signal processing circuit 22, the information (with reference to Fig. 1) that then extracts the present total playing time of video disc that loads of expression from this TOC is as dish identifying information (step S32).The video disc reproducer becomes halted state for the time being after CPU24 reads in TOC, wait for user's operation.
The user when the image/sound information of the video disc of wanting to reappear current loading, " PLAY " key of pressing key input switch 25.In a single day CPU24 detects and pushes " PLAY " key (step S33), and whether the information of just judging the total playing time of expression that extracts from the video disc TOC of current loading is included in tabular form is stored in the dish identifying information in the CD ID storer 26 (step S34).
When CPU24 is not included in the dish identifying information table in the information of judging the total playing time of expression that extracts, think that this video disc should not limit attention, reappear order to CD signal processing circuit 22 and 23 outputs of VCD/MPEG signal processing circuit.Thus, the image/sound information of CD signal processing circuit 22 playback records in the video disc that loads etc. and export VCD/MPEG signal processing part 13 to.Behind the image/sound information decoding of VCD/MPEG signal processing circuit 23 with input, reappear and be image/sound (step S35).
On the other hand, when CPU24 in step S34, when the information of the total playing time of expression that judge to extract is included in the above-mentioned dish identifying information table, think that should limit this video disc reappears, do not send constantly at this and reappear order to VCD/MPEG signal processing circuit 23.Thus, this video disc reproducer forbids reappearing image/sound information in the video disc that is recorded in loading constantly at this.
As mentioned above, in video disc reproducer of the present invention, the video disc that the 26 storage restrictions of CD ID storer reappear.CPU24 judges whether the video disc that loads at present should limit reproduction.CD signal processing circuit 22 and VCD/MPEG signal processing circuit 23 only from CPU24 input reproduction order the time, are just paid attention to handling to the video disc that loads.The video disc that i.e. restriction reappears or not processing.Like this, video disc reproducer of the present invention can lock to the video disc that only comprises the image information unsuitable for children for the adult watches, and can limit this video disc and reappear.Thus, can provide and have the video disc reproducer that protectiveness adds lock function.
But general video disc reproducer is necessary to accomplish, specific user (as the adult etc.) can reappear processing to the video disc that restriction reappears.For this reason, CPU24 carries out there be not on the illustrated display " please enter password " such operations such as message of demonstration behind step S34, urges user enter password (step S36).The user is when wanting to reappear the video disc of restriction reproduction, and 10 numerical keys of operating key input switch 25 are entered password.
In case enter password (step S37) from key input switch 25, the password that CPU24 judges input whether be pre-stored in password storer 27 in password consistent (step S38).
Entering password when consistent with the password that prestores, CPU24 thinks that wanting the people of the video disc that the audiovisual restriction reappears is above-mentioned specific user.Then, CPU24 reappears the reproduction order of handling to CD signal processing circuit 22 and VCD/MPEG signal processing circuit 23 export permits.Thus, same with the explanation among the step S37, the image/sound information playback that writes down in the video disc of loading is image/sound (step S35).
On the other hand, when the password and the password that prestores of input were inconsistent, CPU24 thought that the people who wants audiovisual to limit the video disc of paying attention to is not above-mentioned specific user.Thereby the reproduction of the image/sound information that writes down in the video disc that the video disc reproducer is forbidden loading is at present handled.
But the user can forget password sometimes.For this reason, the video disc reproducer preferably can be carried out the removing processing of removing the password of depositing in the password storer 27.Again, specific sometimes user wants to change password.For this reason, the renewal that preferably can carry out the password of depositing in the new password storer 27 more of video disc reproducer is handled.Again, the video disc number that the user had can be because of buying or discarded the increase and decrease.The video disc that restriction reappears changes as time passes.Therefore, the video disc reproducer preferably can be carried out the processing of upgrading the identifying information of depositing in the CD ID storer 26.
Fig. 4 is that the process flow diagram that processing, password renewal processing and dish identifying information upgrade processing removed in the expression password.After a certain video disc was loaded by CD loading bin 21, the user carried out scheduled operation.In a single day CPU24 detects this user operation, with above-mentioned identical method, urge user enter password (step S41).At this moment the user imports password commonly used, removes the key of handling (for example, " RETURN " key of key input switch 25) by carrying out password.CPU24 then removes the password of being deposited in the password storer 27 (step S43) if detect by " RETURN " key (step S42).
Again, import correct password (step S44), then on not shown display, show predetermined menus picture (step S45) if CPU24 behind step S41, detects the user.
In this example, when this menu screen showed, if " 1 " (the step S46) in the contained 10 numeric keys of button input switch 25, then CPU24 urged the user to import new password, thereby the content of new password storer 27 (step S47) more is with the new password of login input.
Do not limit reproduction at the video disc that loads at present, and when pressing " 2 " in the 10 numeric keys during menu screen shows (step S48), CPU24 writes the expression information (step S49) of the total playing time of video disc of loading at present again to CD ID storer 26, thus, this video disc reproducer thinks that the video disc of present loading is the CD that restriction reappears from now on.
Moreover, reappear in the video disc restriction of loading at present, but when during menu screen shows, pressing " 3 " in the 10 numeric keys (step S410), the CPU24 deletion is information (step S411) storage, that represent the total playing time of this video disc in CD ID storer 26 in the past, thus, this video disc reproducer thinks that the video disc of present loading is the CD that does not limit reproduction from now on.
In this example, though with the information of representing total playing time as disc identification information, be not limited thereto, for example, the total road number that is comprised among the also available TOC and the playing time in the 1st road etc.
Again, the flow process of the renewal processing of the renewal of the removing processing of above-mentioned password, password processing and dish identifying information only is an illustration.As long as these treatment schemees satisfy its original purpose, be not limited to be shown in the flow process of Fig. 4.
Claims (4)
1. video disc reproducer, this video disc be recording image information and as the catalogue TOC of the index information of this image information at least, it is characterized in that this video disc reproducer comprises:
The playing time in contained total playing time, total road number or the 1st road will limit the identifying information of the video disc of reproduction as identification among the described TOC of preliminary election, and stores the storage part of the identifying information of the video disc that will limit reproduction;
Among the TOC that from the video disc of present loading, writes down, extract the extracting part of the information suitable with identifying information;
Judge whether information that described extracting part extracts is included in the judging part in the identifying information of described storage portion stores;
Only when information that the described extracting part of described judgement section judges extracts is not included in the identifying information of described storage portion stores, just the image information that writes down in the video disc that loads at present is reproduced to the reproduction portion of image.
2. video disc reproducer as claimed in claim 1 is characterized in that described TOC comprises the information of total playing time of the image information of representing internal record; The information of the total playing time of described expression is as described identifying information.
3. video disc reproducer, this video disc be recording image information and as the catalogue TOC of this image information index information at least, it is characterized in that this video disc reproducer comprises:
The playing time in contained total playing time, total road number or the 1st road will limit the identifying information of the video disc of reproduction as identification among the described TOC of preliminary election, and stores the 1st storage part of the identifying information of the video disc that will limit reproduction;
The 2nd storage part of the password of the video disc that will limit reproduction is permitted or forbidden reappearing to storage representation;
Among the TOC that from the video disc of present loading, writes down, extract the extracting part of the information suitable with identifying information;
Judge whether information that described extracting part extracts is included in the 1st judging part in the identifying information of being stored in described the 1st storage part;
The password of judging input whether with described the 2nd storage part in the 2nd consistent judging part of password stored;
Reproduction portion, only the information that extracts when the described extracting part of described the 1st judgement section judges is not included in the identifying information of storing in described the 1st storage part, and when the password of storing in the password of the described input of described the 2nd judgement section judges and described the 2nd storage part is consistent, just the image information that writes down in the video disc that loads at present is reproduced to image.
4. video disc reproducer as claimed in claim 3 is characterized in that described TOC comprises the information of total playing time of the image information of representing internal record; The information of the total playing time of described expression is as described identifying information.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10208368A JP2000040303A (en) | 1998-07-23 | 1998-07-23 | Video cd player |
| JP208368/1998 | 1998-07-23 | ||
| JP208368/98 | 1998-07-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1243311A CN1243311A (en) | 2000-02-02 |
| CN1124603C true CN1124603C (en) | 2003-10-15 |
Family
ID=16555141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99110662 Expired - Fee Related CN1124603C (en) | 1998-07-23 | 1999-07-21 | Video CD. Reproduction device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2000040303A (en) |
| CN (1) | CN1124603C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030071323A (en) * | 2002-02-28 | 2003-09-03 | 삼성전자주식회사 | Method and apparatus for changing parental level in reproducing optical disk |
| JP4023404B2 (en) * | 2003-07-04 | 2007-12-19 | 株式会社日立製作所 | Playback device, program, and recording medium |
| JP2005339615A (en) * | 2004-05-24 | 2005-12-08 | Funai Electric Co Ltd | Information playback system |
| JP5489139B1 (en) * | 2013-03-17 | 2014-05-14 | アイギステクノロジーズ株式会社 | Playback device, playback method, and program |
-
1998
- 1998-07-23 JP JP10208368A patent/JP2000040303A/en active Pending
-
1999
- 1999-07-21 CN CN 99110662 patent/CN1124603C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1243311A (en) | 2000-02-02 |
| JP2000040303A (en) | 2000-02-08 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031015 Termination date: 20120721 |