CN101661210B - Projector system authentication processing method and a control method of the projector and the information processing device - Google Patents

Abstract

The invention provides a projecting system authentication processing method and a control method of the projector and the information processing device. An object of the invention is to ensure security while simplifying the configuration and processing of a projector in a projector system using a host-based projector. The inventive authentication processing method includes the following steps: a step in which the projector generates ciphers for judging whether the projection processing can be started; a step for encrypting the cipher, and transmitting the encrypted ciphers to the information processing device from the projector; a step in which the information processing device uses the deciphered ciphers to decipher the encrypted ciphers sent by the projector; and a step for determining whether the deciphered ciphers are correct, and outputting signals for starting implementing of the projection processing from the information processing device to the projector, when the deciphered ciphers are correct as the ciphers of the projector.

Description

Projector system authentication processing method and projector and signal conditioning package control method

The application is that the original bill application number is the application for a patent for invention (applying date: on April 4th, 2007, denomination of invention: dividing an application optical projection system) of 200710095803.X.

Technical field

The present invention relates to have and to have carried out that the view data after the Flame Image Process offers the signal conditioning package of projector and to the control method of the signal conditioning package that uses in the control method of the projector that uses in the authentication method of the optical projection system of the projector that carries out projection based on image, the optical projection system and the optical projection system from the view data of this signal conditioning package.

Background technology

In having the signal conditioning package (personal computer etc.) that view data offered projector and the optical projection system to the projector that carries out projection based on the image from the view data of this signal conditioning package, the view data that be shown by projector generally be to send from signal conditioning package as simulating signal.

For this reason, send to projector after the view data of being preserved as numerical data by signal conditioning package is converted into simulating signal temporarily in signal conditioning package.Then, in the projector side, in the future the simulating signal of self-information treating apparatus is carried out digitizing, carries out the Flame Image Process that comprises treatment for correcting etc.

On the other hand, recently along with the raising of the performance of the CPU of signal conditioning package and GPU, such optical projection system has been proposed: comprise that in the execution of signal conditioning package side treatment for correcting (for example, shape conversion, color correction etc.) after interior Flame Image Process, the view data (numerical data) treating to be shown by projector is sent to projector by USB cable etc.

In this optical projection system, because send view data (numerical data) after having carried out the Flame Image Process that comprises treatment for correcting to projector, so, in the projector side, do not need to comprise the Flame Image Process of treatment for correcting etc.This projector is called main frame type (host-based) projector, and this main frame type projector can only be made of the required MIN inscape of projection, so can realize small-sized, low cost equipment.

But, in the optical projection system of having used main frame type projector, projector itself much less, the price that being used to of installing in the signal conditioning package carried out the software of Flame Image Process (comprising treatment for correcting) is very expensive.

Therefore, malicious user is arranged in pairs or groups with this software with the projector (being called non-legal projector) beyond the complete legal projector of this software, can produce and sell the so-called pirate projector that is also referred to as thus.

As the technology that is used to deal with this problem, for example, patent documentation 1 is arranged.Disclosed technology is in the patent documentation 1, the signal conditioning package side-draw must be at the password of projector adnation one-tenth, in the signal conditioning package side, all use obtained password to carrying out for example WEP (Wired Equivalent Privacy to the view data that projector sends at every turn, Wired Equivalent Privacy) encryption of mode etc., view data after encrypting is sent to projector,, all the encrypted image data from signal conditioning package is decrypted the back at every turn and shows in the projector side.

Like this, patent documentation 1 disclosed technology all accesses to your password at every turn view data etc. is encrypted, and the view data after encrypting etc. is sent to projector, thus, guarantees the security for software.

Patent documentation 1 TOHKEMY 2003-69923 communique

Disclosed technology is a useful technology in the security of guaranteeing for software in the patent documentation 1.

But, disclosed Technology Need is each all to will all encrypting to the view data that projector sends in the signal conditioning package side in the patent documentation 1, give projector with the image data transmission after encrypting, in projector, all the view data after encrypting is decrypted processing at every turn.Especially, all encrypted image data is decrypted in the projector side, this need prepare corresponding hardware and software therewith in the projector side at every turn, and it is complicated that the formation of projector and processing become.

Especially, used the fundamental purpose of the optical projection system of main frame type projector to be,, made the structure of projector and handle more and simplify, suppressed cost of development thus and realize cheapization of product price by more handling in the signal conditioning package side.Therefore, as disclosed technology in the above-mentioned patent documentation 1, see it is good in the technology that the projector side all is decrypted encrypted image data at every turn from the angle of guaranteeing security, but its problem is, in the optical projection system of having used main frame type projector, can not give full play to advantage as main frame type projector.

Here the object of the present invention is to provide a kind of optical projection system, it has used main frame type projector, can in the simplification of structure that keeps projector and processing, guarantee high security, and the signal conditioning package that uses in the projector that uses in this optical projection system and this optical projection system is provided.

Summary of the invention

(1) optical projection system of the present invention, it has signal conditioning package and the projector to carrying out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package that the view data after the carries out image processing is offered projector, it is characterized in that,

Above-mentioned projector comprises: the equipment connecting portion of projector side, its realize with above-mentioned signal conditioning package between communicate by letter; The password generating unit of projector side, its generation are used to judge the password that could begin to carry out the processing of projection usefulness; And, the projector side add compact part, it is encrypted above-mentioned password, the Crypted password of equipment connecting portion by above-mentioned projector side after with above-mentioned encryption outputs to above-mentioned signal conditioning package, above-mentioned signal conditioning package comprises: the equipment connecting portion of signal conditioning package side, its realize with above-mentioned projector between communicate by letter; The decryption part of signal conditioning package side, it uses decruption key that the above-mentioned Crypted password of importing by the equipment connecting portion of above-mentioned signal conditioning package side is decrypted; And, the password detection unit of signal conditioning package side, its have the whether correct function of the clear crytpographic key judged after the above-mentioned deciphering and under the correct situation of above-mentioned clear crytpographic key the output indication begin to carry out above-mentioned projection that above-mentioned signal conditioning package institute should carry out function with the signal of processing.

According to above-mentioned (1) described optical projection system, in the signal conditioning package side, being judged to be the password that is sent by projector is under the correct situation, think that this projector is legal projector, the beginning projection is with handling (comprising the Flame Image Process of treatment for correcting etc. in signal conditioning package).

Thus, for example, even will not be that the projector (non-legal projector) of legal projector and the projection carried out that is installed in the signal conditioning package are carried out projection with the combination of software of handling (comprising the Flame Image Process of treatment for correcting etc.), this projector can not carry out projection.Thus, can prevent from illegally to use by making up the software that this software and non-legal projector produce and sell so-called pirate projector.

In addition, the authentication processing that optical projection system of the present invention is carried out is carried out as carrying out actual projection initial stage processing before, in the projector side, send to the processing of image processing apparatus after only carrying out when handling in the early stage password encrypted, so, with all view data is encrypted at every turn after send to the projector side, the existing method that at every turn all encrypted image data is decrypted in the projector side compares, and can alleviate the processing burden of projector.

Like this, optical projection system of the present invention can be guaranteed high security in the simplification of structure that keeps projector and processing.Especially, optical projection system of the present invention is because be to use the optical projection system of main frame type projector, so the projector side is expected to simplify as far as possible, the present invention can make up the advantage of not losing this main frame type projector and the optical projection system that can guarantee high security.

(2) optical projection system described in above-mentioned (1), preferably, the password detection unit of above-mentioned signal conditioning package side has the function that above-mentioned clear crytpographic key is exported to above-mentioned projector by the equipment connecting portion of above-mentioned signal conditioning package side; Above-mentioned projector has the password detection unit of projector side, whether it judges by the above-mentioned clear crytpographic key of the equipment connecting portion input of above-mentioned projector side correct, and the output indication begins to carry out the signal that processing is used in above-mentioned projection that above-mentioned projector institute should carry out under the correct situation of above-mentioned clear crytpographic key.

Like this, also accomplished to judge whether the password of deciphering is correct in signal conditioning package, under the correct situation of clear crytpographic key, begun to carry out above-mentioned projection with handling in the projector side.

Promptly, in the optical projection system described in (2), when judging that in the signal conditioning package side projector is legal projector, when being legal software with software at projector side determination information treating apparatus, begin to carry out projection for this projector with handling (comprising the Flame Image Process of treatment for correcting etc.) in the signal conditioning package side, simultaneously, begin to carry out the projection that self should carry out with handling (for example the driving of optical system and electro-optic modulation arrangement etc.) in the projector side.

Like this, judge not only whether the projector be connected with signal conditioning package is legal projector, and the legitimacy of the software of determination information treating apparatus side, thus, software that can the confirmation treating apparatus is legal software.Therefore, in this optical projection system, for example, can prevent that the software of signal conditioning package is replaced by other softwares that are not legal software.

(3) above-mentioned (1) or (2) described optical projection system, preferably, above-mentioned signal conditioning package has the password generating unit of signal conditioning package side, and the password generating unit of this signal conditioning package side generates the identical password of password that generates with above-mentioned projector; The password detection unit of above-mentioned signal conditioning package side compares by the password that the password generating unit with above-mentioned clear crytpographic key and above-mentioned signal conditioning package side generates, and judges whether above-mentioned clear crytpographic key is correct.

Thus, in the signal conditioning package side, can judge the correctness of the password that sends by the projector side rightly.

(4) any described optical projection system in above-mentioned (1)～(3), also preferably, above-mentioned signal conditioning package is obtained above-mentioned decruption key by network.

This for example is meant from Web website of manufacturer of projector etc. etc. obtains decruption key.Concrete is meant, intrinsic numbering by this projector is provided in signal conditioning package etc., in the Web website of manufacturer etc., carry out the authentication processing of the intrinsic numbering that above-mentioned signal conditioning package provides, under the situation by authentication, signal conditioning package can be obtained decruption key from the Web website of manufacturer etc.

Can obtain following benefit this moment: be connected because of producer's grade of the signal conditioning package that constitutes optical projection system by internet and projector, send the information of the situation etc. of relevant optical projection system to manufacturer's side from user side, thus, manufacturer's side group is supported the user who uses this optical projection system in these information.

(5) any described optical projection system in above-mentioned (1)～(4) is characterized in that above-mentioned projector has: preserve the function that the intrinsic control information that is used to proofread and correct of this projector is encrypted the encryption control information of back formation; Above-mentioned encryption control information and above-mentioned Crypted password are sent to the function of above-mentioned signal conditioning package.

Like this, owing to have following function: the intrinsic control information of each projector is being carried out under the state of encrypting, is promptly being preserved by this projector as encrypting control information, control information should be encrypted and above-mentioned Crypted password sends to above-mentioned signal conditioning package together, thereby when sending the intrinsic control information of each projector to the signal conditioning package side, can under hidden state, send the intrinsic control information of each projector to the signal conditioning package side.

In addition, under the state that has carried out encrypting in the cryptographic means high, be kept in the storage unit of projector, thus, can preserve the intrinsic control information of this projector of preserving with little data volume by projector with encrypting correction data by data compression rate.Therefore, can effectively utilize the memory capacity of the storage unit that projector has.

(6) any described optical projection system in above-mentioned (1)～(4), preferably, above-mentioned password comprises the information that its value of date and time etc. changes and generates.

Therefore, can make password have higher reliability.At this moment, the term of validity of preferably password setting being scheduled to.Like this, by the term of validity predetermined to password setting, for example, when many people of same company are used alternatingly the situation etc. of same projector, so long as in the term of validity that sets, just can carry out operate as normal with identical password.

(7) optical projection system of the present invention has signal conditioning package and the projector to carrying out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package that the view data after the carries out image processing is offered projector, it is characterized in that, above-mentioned signal conditioning package comprises: the equipment connecting portion of signal conditioning package side, its realize with above-mentioned projector between communicate by letter; The password generating unit of signal conditioning package side, its generation are used to judge the password that could begin to carry out the processing of projection usefulness; And, the signal conditioning package side add compact part, it is encrypted above-mentioned password, and the equipment connecting portion of the Crypted password after the above-mentioned encryption by above-mentioned signal conditioning package side outputed to projector; Above-mentioned projector comprises: the equipment connecting portion of projector side, its realize with above-mentioned signal conditioning package between communicate by letter; The decryption part of projector side, it uses decruption key that the above-mentioned Crypted password of importing by the equipment connecting portion of above-mentioned projector side is decrypted; And, the password detection unit of projector side, whether correct it have the clear crytpographic key judged after the above-mentioned deciphering function, and the output indication begins to carry out above-mentioned projection that above-mentioned projector institute should the carry out function with the signal of processing under the correct situation of above-mentioned clear crytpographic key.

According to (7) described optical projection system, in the signal conditioning package side, send Crypted password to the projector side, judge in the projector side whether the password that is sent by signal conditioning package is correct, when correct, in the projector side, begin self the projection that should carry out with handling, send the authentication signal of expression authentication success simultaneously to signal conditioning package.

By carrying out this authentication processing, also the same with the optical projection system described in above-mentioned (1), for example, even will not be the projector (non-legal projector) of legal projector and be installed to the projection carried out in the signal conditioning package and make up with the software of handling (comprising the Flame Image Process of treatment for correcting etc.) and carry out projection, in this projector, can not carry out projection.Therefore, can prevent that the software of producing and selling so-called pirate projector by the combination of this software and non-legal projector from illegally using.

In addition, the authentication processing of carrying out in the optical projection system described in above-mentioned (7) is the same with the projecting apparatus system described in above-mentioned (1), carries out as carrying out actual projection initial stage processing before.That is, in the optical projection system described in above-mentioned (7), carry out following processing: when handling in the early stage, in the signal conditioning package side, send Crypted password to the projector side, in the projector side, by projector the password that signal conditioning package sends is decrypted, judge whether the password after the deciphering is correct.

Therefore, also the same in the optical projection system described in above-mentioned (7) with the optical projection system described in above-mentioned (1), with all view data is encrypted at every turn after send to the projector side, the existing method that at every turn all encrypted image data is decrypted in the projector side compares, and can simplify the structure and the processing of projector side as much as possible.Like this, in the optical projection system described in (7), also can make up the advantage of not losing main frame type projector and the optical projection system that can guarantee high security.

(8) optical projection system described in above-mentioned (7), preferably, above-mentioned projector has the password generating unit of projector side, the password generating unit of this projector side generates and is used to judge and could begins to carry out above-mentioned projection with the password of handling, and the password generating unit of above-mentioned signal conditioning package side generates the identical password of password with the password generating unit generation of above-mentioned projector side.

Like this, in the signal conditioning package side,,, can judge rightly whether the password that sends from the signal conditioning package side is correct in the projector side by generating the identical password of password with the password generating unit generation of projector side.

(9) above-mentioned (7) or (8) described optical projection system, preferably, above-mentioned projector is under the correct situation of above-mentioned clear crytpographic key, send authentication signal to above-mentioned signal conditioning package, above-mentioned signal conditioning package has projection process commencing signal efferent, this projection process commencing signal efferent is based on the authentication signal from above-mentioned projector, and the output indication begins to carry out projection that above-mentioned signal conditioning package institute should the carry out signal with processing.

Like this, when the password that sends by signal conditioning package when the projector side has been passed through authentication, projector sends authentication signal to signal conditioning package, and signal conditioning package is according to from the authentication signal of projector, begins to carry out projection that self institute should carry out with processing.Thus, appropriate authentication processing can be carried out, high security can be guaranteed.

(10) any described optical projection system in above-mentioned (7)～(9), preferably, above-mentioned projector has: preserve and to be used to make above-mentioned signal conditioning package to carry out projection that above-mentioned signal conditioning package institute should the carry out function with the executive routine of processing; And, under the correct situation of above-mentioned clear crytpographic key, send the function of above-mentioned executive programs to above-mentioned signal conditioning package, above-mentioned signal conditioning package uses the executive routine that is sent by above-mentioned projector, carries out projection that above-mentioned signal conditioning package institute should carry out with processing.

Like this, have only the password that generates when signal conditioning package when the projector side has been passed through authentication, just send executive routine to signal conditioning package, in the signal conditioning package side from projector, use is by the executive routine that projector sends, carry out self the projection that should carry out with handling.

Therefore,, otherwise do not carry out projection with handling, therefore, can further improve security in the signal conditioning package side unless the password that signal conditioning package generates has passed through authentication in the projector side.

(11) any described optical projection system in above-mentioned (7)～(10), preferably, above-mentioned projector has: the function of preserving the intrinsic control information that is used to proofread and correct of above-mentioned projector; And, under the correct situation of above-mentioned clear crytpographic key, sending the function of above-mentioned control information to above-mentioned signal conditioning package, above-mentioned signal conditioning package uses the control information of being sent by above-mentioned projector that view data is proofreaied and correct.

Like this, have only the password that generates when signal conditioning package when the projector side has been passed through authentication, just send control information to signal conditioning package,, use the control information of sending to carry out treatment for correcting by projector in the signal conditioning package side from projector.Therefore,, otherwise do not carry out treatment for correcting, therefore, can further improve security at this projector in the signal conditioning package side unless the password that signal conditioning package generates has passed through authentication in the projector side.

Have again, in signal conditioning package, if there is not executive routine just not carry out Flame Image Process itself, in addition, if control information does not exist, then can't become appropriate view data, therefore, no matter which lacks, in signal conditioning package, all can not carry out appropriate Flame Image Process.Therefore, having only the password that generates when signal conditioning package just to send to signal conditioning package when the projector side has been passed through authentication, can be control information and executive routine either party, and in addition, it is just passable not send both simultaneously.

(12) any described optical projection system in above-mentioned (7)～(11), preferably, above-mentioned password comprises the information that its value of date and time etc. changes and generates.

Thus, can obtain and above-mentioned (6) identical effect.

(13) any described optical projection system in above-mentioned (1)～(12), preferably, above-mentioned password and above-mentioned decruption key are based on the intrinsic numbering of above-mentioned projector and generate.

Like this, the intrinsic numbering that is attached on the above-mentioned projector generates owing to above-mentioned password and above-mentioned decruption key are based on, and thus, can determine each projector exactly, and, can easily generate password and above-mentioned decruption key.

(14) projector of the present invention is used for having the optical projection system of signal conditioning package and this projector, this signal conditioning package will have been carried out the view data after the Flame Image Process and offer projector, this projector is to carrying out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package, preferably, this projector comprises: the equipment connecting portion of projector side, its realize with above-mentioned signal conditioning package between communicate by letter; The password generating unit of projector side, its generation are used to judge the password that could begin to carry out the processing of projection usefulness; And, the projector side add compact part, it is encrypted above-mentioned password, and the Crypted password after the above-mentioned encryption is exported to above-mentioned signal conditioning package by the equipment connecting portion of above-mentioned projector side.

(14) projector described in is the projector that is used for above-mentioned (1) described optical projection system.According to the projector described in (14), because, only carry out and to send to the processing of signal conditioning package after the password encryption, so the processing that can not increase the projector side is born, can simplified structure and processing as projection processing processing before.Thereby,, can not lose the advantage of main frame type projector, and can guarantee security according to the projector described in (14).

Have, the projector described in (14) also preferably has and the identical feature of optical projection system described in above-mentioned (2), (5), (6), (13) again.

(15) signal conditioning package of the present invention is used for having the optical projection system of this signal conditioning package and projector, this signal conditioning package will have been carried out the view data after the Flame Image Process and offer projector, this projector is to carrying out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package, it is characterized in that, this signal conditioning package comprises: the equipment connecting portion of signal conditioning package side, its realize with above-mentioned projector between communicate by letter; The decryption part of signal conditioning package side, it uses decruption key that the above-mentioned Crypted password of input is decrypted by the Crypted password that the equipment connecting portion input of above-mentioned signal conditioning package side is sent by above-mentioned projector; And, the password detection unit of signal conditioning package side, whether correct it have the clear crytpographic key judged after the above-mentioned deciphering function, and under the correct situation of above-mentioned clear crytpographic key, the output indication begins to carry out above-mentioned projection that above-mentioned signal conditioning package institute should the carry out function with the signal of processing.

(15) signal conditioning package described in is used for the optical projection system described in above-mentioned (1), according to the signal conditioning package described in above-mentioned (15), judge in the signal conditioning package side whether the password that is sent by projector is correct, under the correct situation of password, think that establishing this projector is legal projector, the beginning projection is with handling (comprising the Flame Image Process of treatment for correcting etc.).

Thus, for example, even will not be legal projector projector be installed in the signal conditioning package the projection carried out with the processing (comprising the Flame Image Process of treatment for correcting etc.) combination of software carry out projection, projector can not carry out projection.Therefore, can prevent from illegally to use by making up the software that this software and non-legal projector produce and sell so-called pirate projector.

Have again, in the signal conditioning package described in (14), also preferably have and the identical feature of optical projection system described in above-mentioned (2), (3), (4), (6), (13).

(16) projector of the present invention is used for having the optical projection system of signal conditioning package and this projector, this signal conditioning package will have been carried out the view data after the Flame Image Process and offer projector, this projector is to carrying out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package, it is characterized in that, this projector comprises: the equipment connecting portion of projector side, its realize with above-mentioned signal conditioning package between communicate by letter; The decryption part of projector side, it uses decruption key that the above-mentioned Crypted password of input is decrypted by the Crypted password that the equipment connecting portion input of above-mentioned projector side is sent by above-mentioned signal conditioning package; And, the password detection unit of projector side, whether correct it have the clear crytpographic key judged after the above-mentioned deciphering function, and the output indication begins to carry out above-mentioned projection that above-mentioned projector institute should the carry out function with the signal of processing under the correct situation of above-mentioned clear crytpographic key.

(16) projector described in is used for the optical projection system described in above-mentioned (7).According to the projector described in (16), in the projector side Crypted password that is sent by signal conditioning package is decrypted, judge whether the password after the deciphering is correct, under correct situation, begin projection that self institute should carry out with processing, and, because with the processing before handling, only carry out the authentication signal of expression authentication success is sent to the processing of signal conditioning package, therefore as projection, can not increase the processing burden of projector side, but simplified structure and processing.Therefore,, can not lose the advantage of main frame type projector according to the projector described in (16), and, can guarantee security.

Have again, in the projector described in (16), also preferably have and the identical feature of optical projection system described in above-mentioned (8)～(13).

(17) signal conditioning package of the present invention is used for having the optical projection system of this signal conditioning package and projector, this signal conditioning package will have been carried out the view data after the Flame Image Process and offer projector, this projector is to carrying out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package, it is characterized in that, this signal conditioning package comprises: the equipment connecting portion of signal conditioning package side, its realize with above-mentioned projector between communicate by letter; The password generating unit of signal conditioning package side, its generation are used to judge the password that could begin to carry out the processing of projection usefulness; And, the signal conditioning package side add compact part, it is encrypted above-mentioned password, exports to projector by the Crypted password of the said equipment connecting portion after with above-mentioned encryption.

(17) signal conditioning package described in is used for the optical projection system described in above-mentioned (7), according to above-mentioned (17) described signal conditioning package, as projection processing processing before, only carry out following processing: generation is used to judge the password that could begin to carry out the processing of projection usefulness, the password that is generated is encrypted, Crypted password after encrypting is outputed to projector, so, the processing of signal conditioning package can be simplified.

Have, in the signal conditioning package described in (17), it preferably has and the identical feature of optical projection system described in above-mentioned (8)～(13) again.

In addition, the present invention can constitute the authentication method of optical projection system shown in following (18)～(27), the authentication method of projector, the authentication processing program of projector, the authentication method of signal conditioning package, the authentication processing program of signal conditioning package.

(18) authentication method of optical projection system of the present invention, be to have to have carried out that the view data after the Flame Image Process offers the signal conditioning package of projector and to the authentication method of the optical projection system of the projector that carries out projection based on image from the above-mentioned view data of above-mentioned signal conditioning package, it is characterized in that, above-mentioned projector has to generate and is used to judge and could begins to carry out the step of projection with the password of handling, with above-mentioned password is encrypted, Crypted password after encrypting is outputed to the step of above-mentioned signal conditioning package by the equipment connecting portion of projector side, above-mentioned signal conditioning package has the step of using decruption key that the above-mentioned Crypted password of importing by the equipment connecting portion of above-mentioned signal conditioning package side is decrypted, whether correct with the clear crytpographic key after the above-mentioned deciphering of judgement, under the correct situation of above-mentioned clear crytpographic key, output indication begins to carry out above-mentioned projection that above-mentioned signal conditioning package institute should the carry out step with the signal of processing.

The authentication method of the optical projection system (18) is the authentication method of carrying out in the optical projection system described in above-mentioned (1).The authentication method of the optical projection system (18) also can obtain and the identical effect of above-mentioned (1) described optical projection system.Have, the authentication method of the optical projection system described in (18) also preferably has and the identical feature of optical projection system described in above-mentioned (2)～(6), (13) again.

(19) authentication method of projector of the present invention, be to have to have carried out the authentication method that the view data after the Flame Image Process offers the above-mentioned projector that uses in the signal conditioning package of projector and the optical projection system to the projector that carries out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package, it is characterized in that, comprise generating and be used to judge and begin to carry out the step of projection with the password of handling, with above-mentioned password is encrypted, the Crypted password after the above-mentioned encryption is outputed to the step of above-mentioned signal conditioning package by the equipment connecting portion of projector side.

The authentication method of the projector (19) is the authentication method of carrying out in the projector described in above-mentioned (14).The authentication method of the projector (19) also can obtain and the identical effect of above-mentioned (14) described projector.Have, the projector described in (19) also preferably has and the identical feature of optical projection system described in above-mentioned (2), (5), (6), (13) again.

(20) the authentication processing program of projector of the present invention, be to have to have carried out the authentication processing program that the view data after the Flame Image Process offers the above-mentioned projector that uses in the signal conditioning package of projector and the optical projection system to the projector that carries out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package, it is characterized in that, comprise generating and be used to judge and begin to carry out the step of projection with the password of handling, with above-mentioned password is encrypted, the Crypted password after the above-mentioned encryption is outputed to the step of above-mentioned signal conditioning package by the equipment connecting portion of projector side.

The authentication processing program of the projector (20) is the authentication processing program of carrying out in the projector described in above-mentioned (14).The authentication processing program of being somebody's turn to do the projector described in (20) also can obtain and the identical effect of projector described in above-mentioned (14).Have, the projector described in (20) also preferably has and the identical feature of optical projection system described in above-mentioned (2), (5), (6), (13) again.

(21) authentication method of signal conditioning package of the present invention, be to have to have carried out the authentication method that the view data after the Flame Image Process offers the above-mentioned signal conditioning package that uses in the signal conditioning package of projector and the optical projection system to the projector that carries out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package, it is characterized in that, comprise the Crypted password that sends by above-mentioned projector by the equipment connecting portion input of signal conditioning package side, the step of using decruption key that the above-mentioned Crypted password of importing is decrypted, whether correct with the clear crytpographic key after the above-mentioned deciphering of judgement, under the correct situation of above-mentioned clear crytpographic key, output indication begins to carry out above-mentioned projection that above-mentioned signal conditioning package institute should the carry out step with the signal of processing.

The authentication method of the signal conditioning package (21) is the authentication method of carrying out in the signal conditioning package described in above-mentioned (15).The authentication method of the signal conditioning package described in above-mentioned (21) also can obtain and the identical effect of signal conditioning package described in above-mentioned (15).Have, the authentication method of the signal conditioning package described in (21) also preferably has and the identical feature of optical projection system described in above-mentioned (2), (3), (4), (6), (13) again.

(22) the authentication processing program of signal conditioning package of the present invention, be to have to have carried out the authentication processing program that the view data after the Flame Image Process offers the above-mentioned signal conditioning package that uses in the signal conditioning package of projector and the optical projection system to the projector that carries out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package, it is characterized in that, comprise the Crypted password that sends by above-mentioned projector by the equipment connecting portion input of signal conditioning package side, the step of using decruption key that the above-mentioned Crypted password of importing is decrypted, whether correct with the clear crytpographic key after the above-mentioned deciphering of judgement, under the correct situation of above-mentioned clear crytpographic key, output indication begins to carry out above-mentioned projection that above-mentioned signal conditioning package institute should the carry out step with the signal of processing.

The authentication processing program of the signal conditioning package (22) is the authentication processing program of carrying out in the signal conditioning package described in above-mentioned (15).Also preferably have in the authentication processing program of the signal conditioning package described in above-mentioned (22) and the identical feature of optical projection system described in above-mentioned (2), (3), (4), (6), (13).

(23) authentication method of optical projection system of the present invention, be to have to have carried out that the view data after the Flame Image Process offers the signal conditioning package of projector and to the authentication method of the optical projection system of the projector that carries out projection based on image from the above-mentioned view data of above-mentioned signal conditioning package, it is characterized in that, above-mentioned signal conditioning package has to generate and is used to judge and could begins to carry out the step of projection with the password of handling, with above-mentioned password is encrypted, the Crypted password after the above-mentioned encryption is outputed to the step of projector by the equipment connecting portion of signal conditioning package side; Above-mentioned projector has the step of using decruption key that the above-mentioned Crypted password of importing by the equipment connecting portion of above-mentioned projector side is decrypted, whether correct with the clear crytpographic key after the above-mentioned deciphering of judgement, under the correct situation of above-mentioned clear crytpographic key, output indication begins to carry out above-mentioned projection that above-mentioned projector institute should the carry out step with the signal of processing.

The authentication method of the optical projection system (23) is the authentication method of carrying out in the optical projection system described in above-mentioned (7).The authentication method of the optical projection system described in above-mentioned (23) also can obtain and the identical effect of optical projection system described in above-mentioned (7); Have, the authentication method of the optical projection system described in (23) also preferably has and the identical feature of optical projection system described in above-mentioned (8)～(13) again.

(24) authentication method of projector of the present invention, be to have to have carried out the authentication method that the view data after the Flame Image Process offers the above-mentioned projector that uses in the signal conditioning package of projector and the optical projection system to the projector that carries out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package, it is characterized in that, comprise the Crypted password that sends by above-mentioned signal conditioning package by the equipment connecting portion input of above-mentioned projector side, the step of using decruption key that the above-mentioned Crypted password of importing is decrypted, whether correct with the clear crytpographic key after the above-mentioned deciphering of judgement, under the correct situation of above-mentioned clear crytpographic key, output indication begins to carry out above-mentioned projection that above-mentioned projector institute should the carry out step with the signal of processing.

The authentication method of the projector (24) is the authentication method of carrying out in the projector described in above-mentioned (16).The authentication method of the projector (24) also can obtain and the identical effect of projector described in above-mentioned (16); Have, the authentication method of the projector described in (24) also preferably has and the identical feature of optical projection system described in above-mentioned (8)～(13) again.

(25) the authentication processing program of projector of the present invention, be to have to have carried out the authentication processing program that the view data after the Flame Image Process offers the above-mentioned projector that uses in the signal conditioning package of projector and the optical projection system to the projector that carries out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package, it is characterized in that, comprise the Crypted password that sends by above-mentioned signal conditioning package by the equipment connecting portion input of above-mentioned projector side, the step of using decruption key that the above-mentioned Crypted password of importing is decrypted, whether correct with the clear crytpographic key after the above-mentioned deciphering of judgement, under the correct situation of above-mentioned clear crytpographic key, output indication begins to carry out above-mentioned projection that above-mentioned projector institute should the carry out step with the signal of processing.

The authentication processing program of the projector (25) is the authentication processing program of carrying out in the projector described in above-mentioned (16).The authentication processing program of the projector described in above-mentioned (25) also can obtain and the identical effect of projector described in above-mentioned (16); Have, the authentication processing program of the projector described in (25) also preferably has and the identical feature of optical projection system described in above-mentioned (8)～(13) again.

(26) authentication method of signal conditioning package of the present invention, be to have to have carried out the authentication method that the view data after the Flame Image Process offers the above-mentioned signal conditioning package that uses in the signal conditioning package of projector and the optical projection system to the projector that carries out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package, it is characterized in that, comprise generating and be used to judge and begin to carry out the step of projection with the password of handling, with above-mentioned password is encrypted, the Crypted password after the above-mentioned encryption is outputed to the step of projector by the equipment connecting portion of signal conditioning package side.

The authentication method of the signal conditioning package (26) is the authentication method of carrying out in the signal conditioning package described in above-mentioned (17).The authentication method of the signal conditioning package described in above-mentioned (26) also can obtain and the identical effect of signal conditioning package described in above-mentioned (17).Have, the authentication method of the signal conditioning package described in (26) also preferably has and the identical feature of optical projection system described in above-mentioned (8)～(13) again.

(27)

The authentication processing program of signal conditioning package of the present invention, be to have to have carried out the authentication processing program that the view data after the Flame Image Process offers the above-mentioned signal conditioning package that uses in the signal conditioning package of projector and the optical projection system to the projector that carries out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package, it is characterized in that, comprise generating and be used to judge and begin to carry out the step of projection with the password of handling, with above-mentioned password is encrypted, the Crypted password after the above-mentioned encryption is outputed to the step of projector by the equipment connecting portion of signal conditioning package side.

The authentication processing program of the signal conditioning package (27) is the authentication processing program of carrying out in the signal conditioning package described in above-mentioned (17).The authentication processing program of the signal conditioning package described in above-mentioned (27) also can obtain and the identical effect of signal conditioning package described in above-mentioned (17).Have, the authentication processing program of the signal conditioning package described in (27) also preferably has and the identical feature of optical projection system described in above-mentioned (8)～(13) again.

Description of drawings

Fig. 1 is the figure of the surface structure of expression optical projection system of the present invention.

Fig. 2 is the figure of structure of the optical projection system of expression embodiment 1.

Fig. 3 is the process flow diagram of authentication processing process of the optical projection system of explanation embodiment 1.

Fig. 4 is the figure of structure of the optical projection system of expression embodiment 2.

Fig. 5 is the figure of structure of the optical projection system of expression embodiment 3.

Fig. 6 is the figure of structure of the optical projection system of expression embodiment 4.

Fig. 7 is the process flow diagram of authentication processing process of the optical projection system of explanation embodiment 4.

Fig. 8 is the figure of structure of the optical projection system of expression embodiment 5.

Fig. 9 is the process flow diagram of authentication processing process of the optical projection system of explanation embodiment 5.

Symbol description

1: projector; 2: signal conditioning package; 3: stube cable; The 4:Web website; 5: network; 11: image projection portion; 12: authentication processing portion (projector side); 21: the view data handling part; 22: authentication processing portion (signal conditioning package side); 121: password generating unit (projector side); 122: add compact part; 123: password detection unit (projector side); 125: encrypt control information storage part (projector side); 126: decryption part (projector side); 127: control information storage part (projector side); 128: executive routine storage part (projector side); 221: the decruption key generating unit; 222: decryption part (signal conditioning package side); 223: password generating unit (signal conditioning package side); 224: password detection unit (signal conditioning package side); 125: encrypt control information storage part (projector side); 227: deciphering control information storage part (signal conditioning package side); 228: add compact part (signal conditioning package side); 229: projection process commencing signal efferent; 230: control information storage part (signal conditioning package side); 231: executive routine storage part (signal conditioning package side)

Embodiment

Below, embodiments of the present invention are described.

Embodiment 1

Fig. 1 is the figure of surface structure of the optical projection system of expression embodiments of the present invention 1.As shown in Figure 1, the optical projection system of embodiments of the present invention 1 has the signal conditioning package 2 of projector 1 and personal computer etc., and these projector 1 are connected by stube cable 3 with signal conditioning package 2.Having, also is same in the optical projection system of other embodiments that the surface structure of optical projection system shown in Figure 1 illustrates in the back again.

The projector 1 that uses in the optical projection system of the embodiments of the present invention is so-called main frame type projector.Promptly, the Flame Image Process that comprises treatment for correcting is carried out in signal conditioning package 2 sides, the view data of having carried out after the Flame Image Process that comprises treatment for correcting is sent to projector 1 as numerical data, in projector 1, reception is carried out projection with handling from the view data of signal conditioning package 1.

Therefore, in signal conditioning package 2 sides, have view data handling part 21, its image to projector 1 projection of wanting is handled.This view data handling part 21 has view data obtaining section 211, shape conversion handling part 212, colour switching handling part 213, transmission process portion 214 etc.In addition, in signal conditioning package 2, have authentication processing portion 22, carry out authentication processing between itself and the projector 1.

On the other hand, projector 1 has image projection portion 11, control device that this image projection portion 11 has electro-optic modulation arrangement, optical system, control them etc., projector 1 also has authentication processing portion 12, carries out authentication processing between itself and the signal conditioning package 2.

Fig. 2 is the figure of structure of the optical projection system of expression embodiment 1.Projector 1 among Fig. 2 and signal conditioning package 2 show the structure of the authentication processing portion 22 of the authentication processing portion 12 of projector shown in Figure 11 side and signal conditioning package 2 sides, and the inscapes beyond these are that the diagram of view data handling part 21 etc. has been omitted in image projection portion 11 in the projector 1, the signal conditioning package 2.

As shown in Figure 2, the authentication processing portion 12 of projector 1 side comprises: the password generating unit 121 of projector side, its generation are used to judge the password that could begin to carry out the processing of projection usefulness; The projector side add compact part 122, it is encrypted password that password generating unit 121 generates, the password after output is encrypted; The password detection unit 123 of projector side, the password that its input is sent by signal conditioning package 2, whether the password of judging input is correct, under the correct situation of password, to output signals (being called the projection process commencing signal) such as image projection portions 11, the indication of this signal begin to carry out projector 1 the projection that should carry out with handling (for example the driving of optical system and electro-optic modulation arrangement etc.); And, equipment connecting portion 124, it connects projector 1 and signal conditioning package 2, realize with signal conditioning package between communicate by letter.

On the other hand, the authentication processing portion 22 of signal conditioning package 2 comprises: the decruption key that the password (being called Crypted password) after the encryption that decruption key generating unit 221, its generation are used for projector 1 is sent is decrypted; The decryption part 222 of signal conditioning package side, its decruption key that uses decruption key generating unit 221 to generate is decrypted Crypted password; The password generating unit 223 of signal conditioning package side, it generates the password of projector 1; The password detection unit 224 of signal conditioning package side, it is by comparing by the password (being called clear crytpographic key) of decryption part 222 deciphering and the password of password generating unit 223 generations, judge whether clear crytpographic key is correct, being judged to be the password of clear crytpographic key as projector 1 is under the correct situation, this clear crytpographic key is exported to projector 1, simultaneously, indication is begun carry out signal conditioning package 2 the projection that should carry out output to view data handling part 21 etc. with the signal (projection process commencing signal) of handling (comprising the Flame Image Process of treatment for correcting etc.); And, equipment connecting portion 225, its link information treating apparatus 2 and projector 1, realize with projector 1 between communicate by letter.

The authentication processing process of the optical projection system of explanation embodiment 1 under this structure.This authentication processing is when being connected to projector 1 on the signal conditioning package 2, as projector 1 the projection process that should carry out and signal conditioning package 2 the processing before the projection process that should carry out carry out.

At first, in projector 1, generate password, in adding compact part 122, the password that is generated is encrypted by password generating unit 121.Then, add compact part 122 and Crypted password is outputed to signal conditioning package 2 by equipment connecting portion 124.

The password that password generating unit 121 generates is different values for each projector, and it is based on to give and generates to the intrinsic numbering (being called individual numbering) of the sequence number of each projector etc.

On the other hand, in signal conditioning package 2 sides, decryption part 222 uses decruption key to be decrypted by equipment connecting portion 225 input Crypted passwords, obtains the password of projector 1.This decruption key is numbered and is generated based on the individuality of projector 1 by decruption key generating unit 221.

In addition, in signal conditioning package 2 sides,, generate the password of this projector 1 according to the individuality numbering of the projector 1 that is connected with oneself by password generating unit 223.It is when being connected to projector 1 on the signal conditioning package 2 that the password of this password generating unit 223 generates, and by being undertaken by the sequence number of user's input as the individuality numbering of projector 1, generates the password identical with projector 1.

And, in signal conditioning package 2, compare the password of clear crytpographic key and 223 generations of password generating unit by password detection unit 224, judge whether clear crytpographic key is correct.As its result of determination, under both inconsistent situations, it is incorrect to be judged to be clear crytpographic key, does not carry out projection with handling.

On the other hand, be judged to be by password detection unit 224 under the situation that password is consistent, clear crytpographic key is correct of clear crytpographic key and 223 generations of password generating unit, judge that projector 1 is legal projector.At this moment, the password detection unit 224 of signal conditioning package 2 is by the clear crytpographic key of equipment connecting portion 225 to the own deciphering of this projector 1 output, indicates the signal (projection process commencing signal) of the projection process that begins to carry out signal conditioning package 2 sides simultaneously to outputs such as view data handling part 21 shown in Figure 1.

On the other hand, in projector 1 side, when having received the clear crytpographic key that sends by signal conditioning package 2, judge by password detection unit 123 whether this clear crytpographic key is consistent with the password that oneself generates (by the password of password generating unit 121 generations), only under the consistent situation of the password that the clear crytpographic key that is sent by signal conditioning package 2 and oneself generate, to outputs such as image projection portion 11 indication shown in Figure 1 begin to carry out projector 1 the projection that should carry out with the signal (projection process commencing signal) of processing.

When clear crytpographic key that is sent by signal conditioning package 2 and the own password that generates are inconsistent, do not carry out projector 1 the projection that should carry out with processing.

Like this,, judge not only whether the password that is sent by projector 1 is correct, and judge in projector 1 side whether the clear crytpographic key that obtains in the deciphering of signal conditioning package 2 sides is correct in signal conditioning package 2 sides.

Thus, can judge in signal conditioning package 2 sides whether the projector 1 as hardware that is connected with oneself is legal projector.In addition, can judge in projector 1 side whether the software of the own signal conditioning package 2 that is connected is legal software.

And, judge that in signal conditioning package 2 sides projector 1 is under the situation of legal projector with at the software of projector 1 side determination information treating apparatus 2 is under the situation of legal software, signal conditioning package 2 sides begin to carry out at the signal conditioning package of this projector 1 the projection that should carry out with handling, simultaneously, also begin to carry out projection that own institute should carry out with processing in projector 1 side.

Like this, judge not only whether the projector 1 be connected with signal conditioning package 2 is legal projector, and the legitimacy of the software of judgement signal conditioning package 2 sides, thus, software that can confirmation treating apparatus 2 is legal software in this optical projection system.Therefore, in this optical projection system, for example, can prevent from the software of signal conditioning package 2 to be replaced with other softwares beyond the legal software and use.

Fig. 3 is the process flow diagram of authentication processing process of the optical projection system of explanation embodiment 1, and Fig. 3 (a) is the processing procedure that expression projector 1 carries out, the processing procedure that Fig. 3 (b) expression signal conditioning package 2 carries out.Because the contents processing of each step is illustrated, so the process of simple declaration overall process here.

At first, in projector 1 side, generate password (step S1), encrypt the password (step S2), the transmission Crypted password (step S3) that are generated.Here, to become wait be that password receives waiting status (step S4) from the state of the password (clear crytpographic key) of signal conditioning package 2 to projector 1.

On the other hand, in signal conditioning package 2 sides, from waiting for that the state from the password (Crypted password) of projector 1 is password waiting status (step S11), in case received Crypted password (step S12), then generating solution decryption key (step S13), be decrypted processing (step S14).

Then, be decrypted the whether correct judgement (step S15) of password, if clear crytpographic key is correct, authentication success (step S16) then, send clear crytpographic key to projector 1, begin simultaneously to carry out signal conditioning package 2 the projection that should carry out with handling (step S17, S18).In addition, in step S15, judged under the incorrect situation of clear crytpographic key authentification failure (step S19).Under the situation of authentification failure, do not carry out projection with handling.

On the other hand, in projector 1 side, under waiting for (step S4) from the state of the password of signal conditioning package 2, if sent clear crytpographic key by signal conditioning package 2, receiving and deciphering password (step S5) is then judged the clear crytpographic key that sends whether correct (step S6), if password is correct, authentication success (step S7) then, begin to carry out projector 1 the projection that should carry out with handling (step S8).In addition, in step S6, judge under the situation of password bad authentification failure (step S9).Under the situation of authentification failure, do not carry out projection with handling.

In addition, when more than Shuo Ming authentication processing can connect projector 1 on signal conditioning package 2, operate according to the pre-arranged procedure by the user and to carry out, and preferably, when having connected projector 1 on signal conditioning package 2, system side is carried out automatically.But, input such as numbering such as the individuality of sequence number etc. waits and is undertaken by the user.In the optical projection system of other embodiments that this illustrates in the back too.

As long as the input operation of the individuality that is undertaken by user numbering is carried out 1 time when being connected to projector 1 on the signal conditioning package 2.Then, the individuality numbering of being imported is stored in the storage unit, individual numbering is read from storage unit as required by later system, thereby carries out the authentication processing of explanation before this.Like this, can be as far as possible user's operation be suppressed to minimum, improves convenience.

Embodiment 2

Embodiment 2 is such embodiments: in signal conditioning package 2, signal conditioning package 2 is obtained the decruption key that uses when Crypted password is decrypted from the scheduled station on the Web.

Fig. 4 is the figure of structure of the optical projection system of expression embodiment 2.Also the same in Fig. 4 with Fig. 2, only show the structure of the authentication processing portion 22 of the authentication processing portion 12 of projector shown in Figure 11 side and signal conditioning package 2 sides.

As shown in Figure 4, there is decruption key generating unit 41 in scheduled station on Web 4 (for example website of the manufacturer of projector) etc.Therefore, signal conditioning package 2 need be connected on the network 5 of internet etc.In addition, in having the Web website 4 of decruption key generating unit 41, has the individual authentication portion 42 that the individuality numbering is authenticated.In addition, signal conditioning package 2 has Internet connection portion 226.

In this structure, if provide individuality numbering as the projector 1 of process object by signal conditioning package 2, the authentication processing that the individuality that then carries out being provided by signal conditioning package 2 in having the Web website 4 of decruption key generating unit 41 in the individual authentication portion 42 that is provided with is numbered, if individual numbering is correct, then generate corresponding therewith decruption key by decruption key generating unit 41.

Then, in signal conditioning package 2, obtain decruption key from Web website 4, use obtained decruption key, 222 pairs of Crypted passwords of decryption part are decrypted.After, carry out the processing identical with the optical projection system of embodiment 1.In Fig. 4, the part identical with Fig. 1 put on same-sign.

Optical projection system according to this embodiment 2, following advantage is arranged: the manufacturer of the network 5 of the signal conditioning package 2 that constitutes optical projection system by internet etc. and projector 1 etc. is connected, therefore, from user side the information of situation of relevant optical projection system etc. is sent to manufacturer's side, thus, the user who uses this optical projection system is supported in information at manufacturer's side group from the user.For example, also can send corresponding correction parameters such as projection environment with the projector of this optical projection system.

In addition, in the optical projection system of embodiment 2, also can obtain following effect: because can not be decrypted the processing of key generation etc. in the optical projection system side, so, in signal conditioning package 2, just do not need the decruption key generating unit, can realize the structure of signal conditioning package 2 and the simplification of processing.

In the optical projection system of embodiment 1 and embodiment 2, with the example of the fixed value of having used individual numbering etc. password is illustrated, and except the individuality numbering, also can constitute password with the value of the information of its value variation that comprises date and time etc.

At this moment, in projector 1 side, the password that has comprised information such as date and time in the individuality numbering is encrypted, send to signal conditioning package 2 sides then, in signal conditioning package 2 sides, the generating solution decryption key is decrypted, this decruption key except individuality numbering also by generations such as date and times.Have again, as enforcement mode 2 illustrated, under the decruption key generating unit is present in situation in the Web website, generates similarly except the individuality numbering and also be decrypted by the decruption key of generations such as date and time.

Like this, also use the value formation password that comprises date and time etc. except individuality numbering is, thus, reliability is higher.Have again, constituting under the situation of password by the value that comprises date and time etc. like this, the predetermined term of validity of preferred regulation.Thus, when for example the many people in same company are used alternatingly same projector etc., so long as before the deadline, but then use just operate as normal of same password, therefore improved convenience.

Embodiment 3

Fig. 5 is the figure of structure of the optical projection system of expression embodiment 3.In optical projection system of the present invention, when having the intrinsic control information of each projector, carry out following processing: send the intrinsic control information of this projector to signal conditioning package 2 from projector 1, in signal conditioning package 2 sides, carry out Flame Image Process based on the intrinsic control information of sending, will carry out the image data transmission after the Flame Image Process to projector 1 by projector 1.Like this, need send under the situation of the intrinsic control information of this projector, preferably, control information encrypted, sent to signal conditioning package 2 as encrypting control information from projector 1 side information treating apparatus 2.

In the optical projection system of embodiment 3, in projector 1, under the state of encrypting, preserve control information.That is, as shown in Figure 5, have and preserve the encryption control information storage part 125 of encrypting control information.And, will be stored in the intrinsic encryption control information of this projector in this encryption control information storage part 125 with sending to signal conditioning package 2 as enciphered data by the Crypted password that adds after compact part 122 is encrypted.

Have, the encryption of control information is undertaken by the cryptographic means identical with the encryption of password again.Therefore, the deciphering of signal conditioning package 2 sides can use the decruption key identical with the deciphering of Crypted password to carry out.

On the other hand,, has deciphering control information storage part 227, the control information after its store decrypted (being called deciphering control information) in signal conditioning package 2 sides.And, decryption part 222, use decruption key to be decrypted from the enciphered data (encrypting control information and Crypted password) that projector 1 sends, the deciphering control information after the deciphering is stored in the deciphering control information storage part 227.In addition, the same by the clear crytpographic key of decryption part 222 deciphering with the optical projection system of embodiment 1, be provided for password detection unit 224, carry out the processing identical with the optical projection system of embodiment 1.

Have again, when the view data handling part 21 of signal conditioning package 2 carries out the view data processing of this projector 1 projection of wanting, considered that also the view data of the control information of storage in the deciphering control information storage part 227 is handled.

As implement the optical projection system of mode 3, has the control information that each projector is intrinsic sends to signal conditioning package 2 as encryption control information function, therefore following advantage is arranged: when the control information that each projector is intrinsic sends to signal conditioning package 2 sides, can send to the signal conditioning package side with the hidden state control information that each projector is intrinsic.

In addition, preserve the intrinsic control information that projector will be preserved, thus, can reduce the data volume of the intrinsic control information that projector 1 will preserve as the encryption control information of using the high cryptographic means of data compression rate to generate.Therefore, can effectively utilize the memory capacity of the storage unit of projector 1.

In addition, in the optical projection system of embodiment 3, also the optical projection system (with reference to Fig. 4) with embodiment 2 is identical, can obtain the decruption key that enciphered data (encrypting control information and Crypted password) is used when being decrypted from the Web website.

Have again, in the optical projection system of above-mentioned embodiment 1～embodiment 3, judged that in signal conditioning package 2 sides projector 1 is under the situation of legal projector, with judged that in projector 1 side the software of signal conditioning package 2 is under the situation of legal software, promptly only signal conditioning package 2 sides and projector 1 side both sides all under the situation of authentication success, just in signal conditioning package 2 and projector 1, begin to carry out projection respectively with handling, judged that projector 1 is that legal projector is promptly thought authentication success but also can need only in signal conditioning package 2 sides, in signal conditioning package 2 and projector 1, begin to carry out the projection that should carry out with handling.At this moment, in projector 1, do not need to carry out the password determination processing, therefore, do not need password detection unit 123 yet, so, the structure and the processing of projector 1 can further be simplified.

Embodiment 4

Fig. 6 is the figure of structure of the optical projection system of expression embodiment 4.As shown in Figure 6, the authentication processing portion 12 of projector 1 side comprises: password generating unit 121, its generation be used to judge could begin to carry out signal conditioning package 2 and projector 1 the projection that should carry out with the password of handling; Decryption part 126, the Crypted password that its input is sent by signal conditioning package 2 is decrypted the password of importing; Password detection unit 123, it judges whether the password after the deciphering is correct, when password is correct, to image projection portion 11 output signals (being called the projection process commencing signal) such as (with reference to Fig. 1), the indication of this signal begins to carry out projection that projector institute should carry out with processing (for example the driving of optical system and electro-optic modulation arrangement etc.), simultaneously, signal from authentication successs to signal conditioning package 2 outputs that represent; And, equipment connecting portion 124, it connects projector 1 and signal conditioning package 2, realize with signal conditioning package between communicate by letter.

On the other hand, the authentication processing portion 22 of signal conditioning package 2 comprises: password generating unit 223, and it generates the identical password of password that is generated with projector 1; Add compact part 228, it is encrypted the password that password generating unit 223 is generated, the output Crypted password; Projection process commencing signal efferent 229, it is to view data handling part 21 output signals (projection process commencing signal) such as (with reference to Fig. 1), this signal indication begin to carry out signal conditioning package 2 the projection that should carry out with processing (comprising the Flame Image Process of treatment for correcting etc.); And, equipment connecting portion 225, its link information treating apparatus 2 and projector 1, realize with projector 1 between communicate by letter.

In this structure, in signal conditioning package 2 sides, by password generating unit 223, generate with projector 1 in the identical password of password of generation.Then, the password that adds 223 generations of 228 pairs of password generating units of compact part is encrypted.Adding compact part 228 exports by equipment connecting portion 225 Crypted password to projector 1.

On the other hand, in projector 1 side, decryption part 126 uses decruption key to be decrypted by equipment connecting portion 124 input Crypted passwords, obtains clear crytpographic key.

Then, in projector 1, the password that clear crytpographic key and password generating unit 121 are generated is compared, judge whether clear crytpographic key is correct by password detection unit 123.As its result of determination, under both inconsistent situations, judge that clear crytpographic key is incorrect, do not carry out projection with handling.

In addition, be judged to be clear crytpographic key by password detection unit 123 with under the situation that password is consistent, clear crytpographic key is correct of password generating unit 121 generations, send the signal (authentication signal) of expression authentication successs to signal conditioning package 2, simultaneously to image projection portion 11 indication such as (with reference to Fig. 1) output of etc.ing begin to carry out projector 1 the projection that should the carry out signal (projection process commencing signal) of processing.

On the other hand, in signal conditioning package 2 sides, when projection process commencing signal efferent 229 has been imported the authentication signal that is sent by projector 1 by equipment connecting portion 225, projection process commencing signal efferent 229 to indication such as view data handling part 21 (with reference to Fig. 1) output of etc.ing begin to carry out signal conditioning package 2 the signal (projection process commencing signal) of the projection usefulness processing that should carry out.

Fig. 7 is the process flow diagram of processing procedure of the optical projection system of explanation embodiment 4, and Fig. 7 (a) shows the processing procedure that projector 1 carries out, and Fig. 7 (b) shows the processing procedure that signal conditioning package 2 carries out.Because the contents processing of each step illustrated, so, the overall process process is carried out simple declaration here.

At first,, generate password (step S21), become the state of wait, i.e. password waiting status (step S22) from the password (Crypted password) of signal conditioning package 2 in projector 1 side.

On the other hand, in signal conditioning package 2 sides, carry out password and generate (step S31), the password that is generated is encrypted (step S32), Crypted password is sent to projector 1 (step S33), become the state (step S34) of wait from the authentication result of projector 1.

In addition, in projector 1,, then the Crypted password that receives is decrypted (step S24), judges the password (clear crytpographic key) whether correct (step S25) after the deciphering if received Crypted password (step S23) from signal conditioning package 2.If clear crytpographic key is correct, then think authentication success (step S26), carry out projection that own institute should carry out with processing (step S27).As the whether correct result of determination of the clear crytpographic key of step S25,, then think authentification failure (step S46) if clear crytpographic key is incorrect.Under the situation of authentification failure, do not carry out projection with handling.

On the other hand, signal conditioning package 2 is (step S34) under the authentication wait state, if received authentication signal from projector 1, then begins to carry out projection that own institute should carry out with processing (step S35).

As described above, in the optical projection system of embodiment 4, in projector 1, whether judgement is correct by the password that signal conditioning package 2 sends, under correct situation, in projector 1, the projection that the own institute of beginning should carry out sends the authentication signal of representing authentication successs to signal conditioning package 2 simultaneously with handling.Thus, in signal conditioning package, the projection that the own institute of beginning should carry out is with processing.

By carrying out this authentication processing, also the optical projection system with embodiment 1 to 3 is identical, can guarantee security.In addition, the processing of carrying out in the optical projection system of embodiment 4 is identical with the optical projection system of above-mentioned embodiment 1～3, carries out as carrying out actual projection initial stage processing before.Therefore, compare, can simplify hardware and software, can make up the advantage that can not lose main frame type projector and the optical projection system that can guarantee security with the method that view data all is decrypted.

Embodiment 5

Fig. 8 is the figure of structure of the optical projection system of expression embodiment 5.In the optical projection system of embodiment 5, except the inscape (with reference to Fig. 6) of the optical projection system of embodiment 4, as shown in Figure 8, in the authentication processing portion 12 of projector 1 side, have: control information storage part 127, the intrinsic control information of its storage projector; With executive routine storage part 128, its storage be used to carry out signal conditioning package 2 the executive routine of the processing that should carry out.

In addition, in the authentication processing portion 22 of signal conditioning package 2 sides, comprising: control information storage part 230, the control information that its storage is sent by projector 1 side; With executive routine storage part 231, the executive routine that its storage is sent by the projector side.

Fig. 9 is the process flow diagram of processing procedure of the optical projection system of explanation embodiment 5, and Fig. 9 (a) shows the processing procedure that projector 1 carries out, and Fig. 9 (b) shows the processing procedure that signal conditioning package 2 carries out.

Step S41～the S46 of the processing of projector 1 side of Fig. 9 is the processing identical with step S21～S26 of Fig. 7, and in addition, the treatment step S51～S54 of signal conditioning package 2 sides is processing identical with step S31～S34 of Fig. 7.

As understanding from Fig. 9, in the optical projection system of embodiment 5, if can be in projector 1 side by authentication by the password that signal conditioning package 2 sends, then projector 1 sends control information and executive routine to signal conditioning package 2, in signal conditioning package 2, control information and executive routine that use is sent by projector 1 are carried out projection that own institute should carry out with handling, and this puts and the optical projection system of embodiment 4 is different.

In Fig. 9, describe from step S45 about the projector side, describe from step S54 about the signal conditioning package side.About projector 1,, then think to send executive routine and control information (step S47) to signal conditioning package 2 by authentication success (step S46) if whether correct result of determination is that clear crytpographic key is correct to the clear crytpographic key of step S45.In addition, projector 1 is carried out projection that own institute should carry out with processing (step S48).

On the other hand, about signal conditioning package 2, under authentication wait state (step S54), if received the executive routine and the control information (step S55) of sending, then use the executive routine receive and control information to begin to carry out projection that own institute should carry out with processing (step S56) by projector 1.

Like this, only the password that generates at signal conditioning package 2 is judged to be under the correct situation by projector 1, sends executive routine and control information by projector 1 to signal conditioning package 2, so, in signal conditioning package 2, can handle the view data of projector 1 projection of wanting rightly.

Have again, in signal conditioning package 2,, then do not carry out Flame Image Process itself if executive routine does not exist, in addition, if control information does not exist, then can not obtain suitable view data, therefore, no matter which lacks, all can't in signal conditioning package 2, carry out appropriate Flame Image Process.Therefore, also can preserve in control information and the executive routine either party in projector 1 side, when the password that is sent by signal conditioning package 2 in projector 1 side can pass through authentication, control information or executive routine that projector 1 is preserved sent to signal conditioning package 2.

For example, also in the early stage under the state, preserve control information in projector 1 side, executive routine is preserved by signal conditioning package 2, when password has passed through authentication in projector 1, sends the control information that projector 1 are preserved from projector 1 to signal conditioning package 2.

In addition, in contrast, also preserve executive routine in projector 1 side under the state in the early stage, control information is preserved by signal conditioning package 2, when password has passed through authentication in projector 1, send the executive routine that projector 1 is preserved to signal conditioning package 2 from projector 1.

As described above, optical projection system according to embodiment 5, can obtain the effect identical with the optical projection system of embodiment 4, in the optical projection system of this external embodiment 5, only passed through under the situation of authentication in projector 1 side at the password that signal conditioning package 2 generates, send control information and/or executive routine from projector 1 to signal conditioning package 2, in signal conditioning package 2 sides, use is by control information and/or executive routine that projector 1 sends, carries out projection that own institute should carry out with processing.

Thus,, just can not carry out projection rightly with handling, therefore, can further improve security in the signal conditioning package side as long as the password that signal conditioning package 2 generates does not obtain authentication in the projector side.

Have again, the same with embodiment 1 and embodiment 2 in the optical projection system of embodiment 4 and embodiment 5, except individuality numbering, can also constitute password by the value of the information of its value variation that comprises date and time etc.

Have again, the invention is not restricted to above-mentioned embodiment, in the scope that does not break away from aim of the present invention, can carry out various distortion.For example, from embodiment 1 to embodiment 3, also can be in signal conditioning package 2 sides, as the whether correct result of determination of clear crytpographic key, if be judged to be clear crytpographic key when incorrect, not only do not begin to carry out projection with handling, and the message of noting by projector 1 and signal conditioning package 2 display reminding users.As the content of this message, for example can consider to represent that employed projector is not the content of legal projector etc.

In addition, equally, at embodiment 1 in embodiment 3, also can be under oneself the inconsistent situation of password that becomes with projector 1 adnation to the clear crytpographic key that projector 1 sends by signal conditioning package 2, not only do not carry out the execution of projection with processing, and, the message that the display reminding user notes on projector 1 and signal conditioning package 2.As the content of this message, for example can consider to represent that employed software is not the content of legal software etc.

Have again, also can use for the optical projection system of embodiment 3 and embodiment 4 in the way of judging the message that the display reminding user notes under the incorrect situation of clear crytpographic key like this.

In addition, carry out the program of the authentication processing of projector 1 side that the respective embodiments described above illustrate as being used for making this projector 1, can make the authentication processing program of projector, in addition, can record the projector authentication processing program that is made in the various recording mediums.Equally, make this signal conditioning package 2 carry out the program of the authentication processing of signal conditioning package 2 sides as being used to, can make the authentication processing program of signal conditioning package, in addition, can record the signal conditioning package authentication processing program that is made in the various recording mediums.

Therefore, the present invention also comprises recording medium that has write down projector authentication processing program and the recording medium that has write down signal conditioning package authentication processing program.In addition, also can obtain these projector authentication processing programs and signal conditioning package authentication processing program from network.

Claims (6)

1. the authentication method of an optical projection system, this optical projection system has signal conditioning package and the projector to carrying out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package that is used for view data is offered projector, it is characterized in that this authentication method may further comprise the steps:

Generate by above-mentioned projector and to be used to judge and to begin to carry out the step of projection with the password of handling;

Above-mentioned password is encrypted, sent the step of the password after encrypting from above-mentioned projector to above-mentioned signal conditioning package;

The step that password after using decruption key to the above-mentioned encryption of sending from above-mentioned projector by above-mentioned signal conditioning package is decrypted; And

Judge whether the password after the above-mentioned deciphering is correct, under the password after the above-mentioned deciphering as the password of above-mentioned projector is correct situation, be used to indicate to above-mentioned projector output from above-mentioned signal conditioning package begin to carry out the step of described projection with the signal of handling.

2. the control method of a projector, this projector carries out projection to the image based on view data, and above-mentioned view data is characterized in that from the signal conditioning package that is used for view data is offered projector this control method may further comprise the steps:

Generation is used to judge and could begins to carry out the step of projection with the password of handling; And

Above-mentioned password is encrypted, sent the step of the password after encrypting to above-mentioned signal conditioning package.

3. the control method of a signal conditioning package, this signal conditioning package is used for view data is offered projector, it is characterized in that, and this control method may further comprise the steps:

The step that password after using decruption key to the encryption of sending from above-mentioned projector is decrypted; And

Judge whether the password after the deciphering is correct, under the password after the above-mentioned deciphering as the password of above-mentioned projector was correct situation, output was used to indicate and begins to carry out the step of projection with the signal of handling.

4. the authentication method of an optical projection system, this optical projection system has signal conditioning package and the projector to carrying out projection based on the image from the above-mentioned view data of above-mentioned signal conditioning package that is used for view data is offered projector, it is characterized in that this authentication method may further comprise the steps:

Generate by above-mentioned signal conditioning package and to be used to judge and to begin to carry out the step of projection with the password of handling;

Above-mentioned password is encrypted, sent the step of the password after encrypting from above-mentioned signal conditioning package to above-mentioned projector;

The step that password after using decruption key to the above-mentioned encryption of sending from above-mentioned signal conditioning package by above-mentioned projector is decrypted; And

Judge whether the password after the above-mentioned deciphering is correct, under the password after the above-mentioned deciphering as the password of above-mentioned signal conditioning package is correct situation, be used to indicate to above-mentioned signal conditioning package output from above-mentioned projector begin to carry out the step of described projection with the signal of handling.

5. the control method of a projector, this projector carries out projection to the image based on view data, and above-mentioned view data is characterized in that from the signal conditioning package that is used for view data is offered projector this control method may further comprise the steps:

The step that password after using decruption key to the encryption of sending from above-mentioned signal conditioning package is decrypted; And

Judge whether the password after the deciphering is correct, under the password after the above-mentioned deciphering as the password of above-mentioned signal conditioning package was correct situation, output was used to indicate and begins to carry out the step of projection with the signal of handling.

6. the control method of a signal conditioning package, this signal conditioning package is used for view data is offered projector, it is characterized in that, and this control method has following steps:

Generation is used to judge and could begins to carry out the step of projection with the password of handling; And

Above-mentioned password is encrypted, sent the step of the password after encrypting to above-mentioned projector.

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