CN1147741A - Scrambled image communication device - Google Patents
Scrambled image communication device Download PDFInfo
- Publication number
- CN1147741A CN1147741A CN96106882A CN96106882A CN1147741A CN 1147741 A CN1147741 A CN 1147741A CN 96106882 A CN96106882 A CN 96106882A CN 96106882 A CN96106882 A CN 96106882A CN 1147741 A CN1147741 A CN 1147741A
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- China
- Prior art keywords
- data
- encryption
- view data
- communication device
- image communication
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
- H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
- H04N1/32267—Methods relating to embedding, encoding, decoding, detection or retrieval operations combined with processing of the image
- H04N1/32272—Encryption or ciphering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32609—Fault detection or counter-measures, e.g. original mis-positioned, shortage of paper
- H04N1/32614—Fault detection or counter-measures, e.g. original mis-positioned, shortage of paper related to a single-mode communication, e.g. at the transmitter or at the receiver
- H04N1/32619—Fault detection or counter-measures, e.g. original mis-positioned, shortage of paper related to a single-mode communication, e.g. at the transmitter or at the receiver with retransmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N2201/328—Processing of the additional information
- H04N2201/3281—Encryption; Ciphering
Abstract
The invention discloses an encryption image communication device in which a password communication can be completed in a relatively short period, which comprises an image size converting device in which the enlarging or the shrinking is proceeded for the image data, an encryption device for the encryption of the image data, an encoding device for the encoding of the password data and a transmission device to send the encoding data. With the use of a control device, the image data is in the setting of a required size, which is then in encryption, encoding and transmission. Moreover with the use of the control device, the encryption process for the image data can be implemented simultaneously when the program before the communication is proceeded. At the same time, when the password sent is wrong, the password data can be resent.
Description
The present invention relates to for example to have the encrypted image device of the facsimile machine etc. of cryptographic communication function.
In existing facsimile machine, when carrying out secure communication, adopt by needs parent's exhibition communication mode.This parent's exhibition communication at transmit leg, when sending view data, also sends the addressee's name information that specializes addressee's name.And the recipient, the view data of reception temporarily stores in the video memory, only imports with addressee's name correspondingly by under the situation of word, just can read and is stored in image and deposits the view data in the device of mansion and print output.
But in above-mentioned parent exhibition communication, the problem of existence is: when view data during by bypass, is easy to divulge a secret in telephone line, for addressing this problem, propose a kind of facsimile machine that has the cryptographic communication function.
That is to say, in facsimile machine, when carrying out cryptographic communication,, read the image on the original copy, utilize the pin mode of stipulating that the view data that has read is encrypted then simultaneously and send at transmit leg with this cryptographic communication function.On the other hand, the recipient, the direct printout of the code data that receives to record-paper, then, again the regulation the code reading information setting in facsimile machine, read the code data that is printed on the record-paper with reading part simultaneously, can decode and printout to the code data that is read like this.So if utilize this facsimile machine, then the data of Fa Songing are code datas, therefore, even in telephone line by bypass, also still can maintain secrecy.
As mentioned above, in existing facsimile machine, when carrying out cryptographic communication, at first view data is encrypted, this data encrypted is encoded, send then.
But, before cryptographic communication, between transmitter and receiver, to send and receive protocol signal certainly, but sometimes, cause receiver can not receive the life size of sending from transmitter owing to sending and receive protocol signal. view data.Its reason may be that the low size of opening that receiver has causes with transmission the not of uniform size of data.So, receiver one side, must be at first be decrypted the code data that receives, dwindle or amplify, and then encrypt and store in the memory.This cryptographic communication is very time-consuming.Subsidiary mentioning, the code data of reception also can directly dwindle or amplify and store in the memory.But, dwindle and the method for amplifying is to pump data or overlapped data.So when dwindling or amplify code data, the password image format of regulation just is damaged, the result causes and can't decipher.
Moreover in conventional device, encryption and encoding process etc. all is that original copy is carried out page by page.Therefore, the problem of existence is: the capacity of memory is wanted to store one page original copy at least, not only need jumbo memory, and what encryption etc. spent is chronic.And, under the situation about when transmitting, making a mistake, because the transmission aspect sends after data are encrypted.So what receive aspect reception is complete nonsensical set of signals zoarium, correctly Data transmission.
The present invention proposes in order to solve these problems of existing in prior technology just, its purpose is to provide a kind of like this scrambled image communication device, promptly when carrying out cryptographic communication, can finish the transmission of code data with very short time, simultaneously, utilize small-capacity memory to get final product, can correct mistakes like clockwork.
In order to achieve the above object, the present invention takes following technical scheme:
A kind of scrambled image communication device, it comprises: the picture size modifier that view data is amplified or dwindled; The encryption device that view data is encrypted; The code device that this enciphered data is encoded; And, it is characterized in that also having: the control device of encrypting, encoding and send after view data is set at given size to the dispensing device that this coded data sends.
Described scrambled image communication device is characterized in that, described control device carries out encryption to view data during program concurrently before executive communication.
Described scrambled image communication device is characterized in that, described control device has a kind of like this function, promptly when password transmission mistake occurring, resends code data.
Described scrambled image communication device is characterized in that, described control device has a kind of like this function, promptly when password transmission mistake occurring, resends code data.
Described scrambled image communication device is characterized in that, the encryption of view data is all measured in accordance with regulations at every turn and carried out.
Described scrambled image communication device is characterized in that, coded data is measured in accordance with regulations at every turn and carried out framing and transmission, and when occurring sending mistake, the data of repeating transmission are unit with the frame.
The invention provides a kind of scrambled image communication device, it has been equipped with control device, and it is encrypted, encodes and send after view data being set at the size (quantity) of regulation.
In the described scrambled image communication device, be equipped with control device, it makes the encryption of view data carry out concurrently simultaneously with the preceding program implementation of communicating by letter.
In the described scrambled image communication device, control device has to send out to stagger the time at password and can resend the function of same code data.
If utilize described scrambled image communication device, be image setting certain size at first then, then the view data of original copy is encrypted, again this data encrypted is encoded.
By described invention, then the encryption of view data and the preceding program implementation of communicating by letter can be carried out simultaneously concurrently.
Described invention even then under the situation that communication the time makes mistakes, also can resend the data of makeing mistakes.
The present invention is owing to adopting said structure, so can produce following effect.
If utilize described invention, then aspect receiver, do not need to carry out unnecessary processing, can shorten call duration time.
If utilize described invention, then because the while is carried out the view data encryption concurrently and the preceding program implementation of communicating by letter, so, can shorten the required time that sends.Can reduce simultaneously the capacity that the memory that storage code data and coded data use is arranged.
If utilize described invention,, can correctly be decrypted code data the recipient even then also can resend the data of mistake under the situation about when sending, going wrong.
Explain the embodiment when the present invention is used for facsimile machine below with reference to the accompanying drawings.
Fig. 1 is the summary structure chart of expression one embodiment of the present of invention.
Fig. 2 is the flow chart of transmit leg action among the expression embodiment.
Fig. 3 is the flow chart of transmit leg action among the expression embodiment.
Fig. 4 is the flow chart of recipient's action among the expression embodiment.
As shown in Figure 1, change the CPU (central processing unit) that pretends to put as control device and picture size, be used to control the action of facsimile machine integral body, comprise in its structure: as encryption device add compact part 2, as the decryption part 3 of decryption device and facsimile coding, lsb decoder 4.Add compact part 2 and utilize the cipher mode of regulation that the view data that sends is encrypted, the data of 3 pairs of encipherments of decryption part are decrypted, and make it become common view data.Coding, 4 pairs of lsb decoders are encoded by adding the code data that compact part 2 encrypts, and make its coded data that becomes fax, simultaneously the coded data decoding that receives are become code data.In addition, in the present embodiment, coding, lsb decoder 4 can utilize modified model Huffman code mode (being designated hereinafter simply as the MH coded system) that view data is encoded or decoded.
ROM (read-only memory) 5 is used to store the required program of control action of CPU.RAM (random access memory) 6 has image storage part 7 as storage device and is provided with in this image storage part 7 and is required a plurality of memory blocks such as storing image data.And, in various information such as this RAM6 stored telephone numbers.
Autodialer 8 is sending the transmission of dialling when faxing.As 9 pairs of facsimile machines of NCU (network control unit) of dispensing device with control being connected of telephone line.Carry out modulation and demodulation as 10 pairs of data that send and receive of modulator-demodulator of dispensing device equally.Protocol signal generation circuit 11 is used to meet the protocol signal of facsimile program.Protocol signal testing circuit 12 is used to detect the protocol signal of sending from the other side.In addition, in circuit 11 and 12 protocol signals that take place or detect, comprise confirmation signal, be used for confirming whether the other side's device has the predetermined function of cryptographic communication function etc.
Read the image on the original copy that amplifies on the document board photographically as the image reading unit 13 of reading device.Printout portion 14 prints on record-paper according to view data that receives and the image that is read by image reading unit 13.Operating portion 15 has encryption key 16 and decryption key 17, and the former is used to select the cryptographic communication mode; The code data that the latter is used for obtaining utilizing cryptographic communication is decrypted.Yet have simultaneously the tens keyboard, singly touch dial key and send various keys such as key.The display part 18 that is made of LCD etc. is used to show various information.
The following describes the action of the facsimile machine of said structure.
In the facsimile machine of this embodiment, when sending, control by CPU1, send processing according to Fig. 2 and flow chart shown in Figure 3.
At first, judge whether it is cipher mode (program step S1).When the encryption key 16 of operating portion 15 is in off-state, not that cipher mode is that mode is carried out common action, do not encrypt, it is directly sent read the product 13 original image data that read by image, this sends end. after, action promptly come to an end (program step S2-S3).
On the other hand, when encryption key 16 is in conducting state, when being cipher mode, encrypted key is read from ROM5, sets in the regulation district that is input to RAM6 (program step S4).So-called encrypted key is meant the encryption parameter that is adopted in the crucial pin mode of maintaining secrecy, and it at the decryption key code of recipient as code reading information, all is to receive shared key between the transmission with following.
Then, by to 10 figure place keyboards of operating portion 15 with singly touch dial key and operate the input of dialling, make simultaneously to send key conducting (program step S5-S6).Then, calling receiver is connected circuit, then, and program before the communication such as the signal that begins to carry on an agreement, and judge that the other side's machine hundred does not have secret code function (program step S7-S10).Its result is provided with the situation eyeball of cryptographic function at the other side's machine, occurs wrong the demonstration on display part 18, circuit is disconnected (program step S11).Has under the situation of cryptographic function 30 on original copy row image data storage (program step 12) in the regulation district of the image storage part 7 of RAM6 at the other side's machine.The original copy that then begins to judge the view data of storage whether be A4 size (program step S13) when original size is not A4, judge that further whether original size is greater than A4 (program step 14).The result dwindles size with the A4 size to the view data in the image storage part 7 under the situation of original copy chi greater than A4; Under the situation of original size, this view data is amplified to the size (program step 15-S16) of A4 size less than A4.Like this, view data all is unified into the size of A4 size, then, stores in the image storage part 7 in the RAM6.Under the situation of dwindling, line number reads original copy in accordance with regulations, makes the line number after dwindling reach 30 row.
Then,, carry out parameter transformation by adding compact part 2, encrypt, store another district interior (program step S17) of image storage part 7 then into according to above-mentioned secret key with the view data of corresponding 30 row of A4 size.
And, in the present embodiment, processing and the judgement of said procedure step S10-S18, preceding program implementation is carried out simultaneously concurrently with communicating by letter.This parallel processing is undertaken by interrupting repeatedly.
Then, before communication during EP (end of program), utilize the MH coded system that the code datas of 30 row encrypted are encoded (program S18), this coded data is carried out framing, send to by modulator-demodulator 10, NCU9 and telephone line in the other side's the receiver (program step S19-S20).When occurring answering, retransmit the data (program step 21) behind the framing once more from makeing mistakes of recipient by sending coded data.Then, whether the coded data of a whole page or leaf sent finished, judged (program step 22).Do not sending under the situation about finishing as yet, repeating the action of said procedure step S12-S21.During framing, use High-Level Data Link Control (HDLC) frame that has error checking.
When the coded data transmission of a whole page or leaf finishes, judge (program step 23) to having or not nextpage, when nextpage is arranged, repeat the action of said procedure step S12-S22; During no nextpage, line disconnection finishes all actions (program step S24).
Moreover in recipient's facsimile machine, the cave code data that receives stores in the memory earlier, print then and, to being printed on code data on the record-paper when being decrypted, control by CPU1, be decrypted processing according to flow process power shown in Figure 4.That is to say, be placed on the document board as reading original copy having printed password record image data paper, under this state, when the decryption key 17 of making operation portion 15, just be set to (program step S31-S33) in the RAM6 with the corresponding decryption key code of secret key of above-mentioned transmit leg.
Then, utilize image reading unit 13 to begin to read password view data on the original copy, simultaneously, utilize decryption part 3 to begin this is fetched data and separate. close (program step 34).That is to say that the data of utilizing image reading unit 13 to read are transformed into common view data according to above-mentioned decryption key code.Afterwards, whether the decryption processing that original copy is read with reading of data finished to judge, handles when all having finished when these, utilizes 14 beginnings of printout portion that decrypted data is printed to (program division S35-S36) on the record-paper.Then, finish to print action (program step 37) in addition, self-evident, the coded system of coding, lsb decoder 4 also can adopt modified model playback mode and MMR mode
The facsimile machine of this embodiment of said structure has following advantage:
(1) when carrying out cryptographic communication, transmit leg was encrypted the transmission view data before reality sends and is encoded.Then, when reality sends, only be reading out through the transmission view data of encrypting and encode in the image storage part 7, send.So this is different from one side encrypts and encodes sending view data, the existing facsimile machine that sends on one side, spended time was many when the view data that can not occur sending was encrypted, the phenomenon that transmitting time is grown.Therefore the communications cost expense in the time of can reducing cryptographic communication can not influence normal communication operation simultaneously yet.
(2) moreover, in when beginning communication, if check find to send and receive between original size and record-paper size when inconsistent, must dwindle the data in the image storage part 7 or be amplified to size consistent and then transmission with the recipient.At this moment, in this embodiment, the view data that is read is unified into encrypts after the A4 size again and encodes.The A4 size is the basic size that the original copy of transmit leg and recipient's record-paper all adopts.Therefore, can be at receiver one to finish work such as Data Receiving processing with the short time.So, the call duration time when helping to shorten cryptographic communication significantly.
(3) in the present embodiment, the encryption of view data and the preceding program implementation of communicating by letter, parallel simultaneously carrying out.Therefore, as before, help to shorten call duration time.
(4) 32 row are carried out in encryption at every turn.So, not only can shorten an encryption Supreme Being and handle the required time, and storage code data and the required memory of coded data also can be low capacities.
(5) when sending data if the frame mistake takes place, then can be that unit weight newly sends out wrong data with the frame.Like this, just can be the recipient correctly code data is decrypted.
In addition, the present invention also can carry out concrete enforcement the in following change back.
(1) in an embodiment, the encryption that the view data that original copy is transformed into behind the A4 is encrypted, and the encoding process that enciphered data is encoded, all each 30 row carry out.But this line number can be changed.For example, when the capacity of the memory of using when storage code data and coded data is little,, can adapt to fully by reducing line number.
(2) in an embodiment, the present invention specifically is used in the facsimile machine.But also can specifically be used for microcomputer communication.Function of keeping secret is to sending after the information encryption, in having the microcomputer communication of this function of keeping secret, carries out encryption and encoding process concurrently simultaneously, therefore, can shorten sending the processing time.
Scrutable technological thought is as described below from the foregoing description.
(1) scrambled image communication device as claimed in claim 2 is characterized in that, the each amount in accordance with regulations of the encryption of view data is carried out.
If adopt this structure, then can use the memory of low capacity.
(2) scrambled image communication device as claimed in claim 3 is characterized in that, code data is measured in accordance with regulations at every turn and carried out framing, transmission, and when occurring sending mistake, the data that resend are unit with the frame.
If adopt this structure, then be easy to exactly code data is decrypted.
Claims (6)
1, a kind of scrambled image communication device, it comprises: the picture size modifier that view data is amplified or dwindled; The encryption device that view data is encrypted; The code device that this enciphered data is encoded; And, it is characterized in that also having: the control device of encrypting, encoding and send after view data is set at given size to the dispensing device that this coded data sends.
2, scrambled image communication device as claimed in claim 1 is characterized in that, described control device carries out encryption to view data during program concurrently before executive communication.
3, scrambled image communication device as claimed in claim 1 is characterized in that, described control device has a kind of like this function, promptly when password transmission mistake occurring, resends code data.
4, scrambled image communication device as claimed in claim 2 is characterized in that, described control device has a kind of like this function, promptly when password transmission mistake occurring, resends code data.
5, scrambled image communication device as claimed in claim 2 is characterized in that, the encryption of view data is all measured in accordance with regulations at every turn and carried out.
6, scrambled image communication device as claimed in claim 3 is characterized in that, coded data is measured in accordance with regulations at every turn and carried out framing and transmission, and when occurring sending mistake, the data of repeating transmission are unit with the frame.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP156490/95 | 1995-06-22 | ||
| JP7156490A JPH099075A (en) | 1995-06-22 | 1995-06-22 | Cipher image communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1147741A true CN1147741A (en) | 1997-04-16 |
Family
ID=15628902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96106882A Pending CN1147741A (en) | 1995-06-22 | 1996-06-19 | Scrambled image communication device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH099075A (en) |
| KR (1) | KR970004632A (en) |
| CN (1) | CN1147741A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7212635B2 (en) | 2002-06-04 | 2007-05-01 | Canon Kabushiki Kaisha | Image processing apparatus, control method thereof, and image processing system |
| CN100469132C (en) * | 2004-07-28 | 2009-03-11 | C&S技术有限公司 | Method for secrete communication between visual telephones |
| CN100544258C (en) * | 2003-01-23 | 2009-09-23 | 佳能株式会社 | Information processing method and equipment |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102300083A (en) * | 2011-09-27 | 2011-12-28 | 杭州华三通信技术有限公司 | Method and equipment for magnifying local region image |
| CN103067367A (en) * | 2012-12-21 | 2013-04-24 | 网秦无限（北京）科技有限公司 | Password hidden method and device and password retrieval method and device |
| WO2023152881A1 (en) * | 2022-02-10 | 2023-08-17 | ソニーセミコンダクタソリューションズ株式会社 | Data processing device, imaging system, and distance measurement system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2948603B2 (en) * | 1989-08-24 | 1999-09-13 | 株式会社リコー | Image encryption recording and playback device |
| JPH0637748A (en) * | 1992-07-17 | 1994-02-10 | Sharp Corp | Information communication equipment |
-
1995
- 1995-06-22 JP JP7156490A patent/JPH099075A/en active Pending
-
1996
- 1996-02-21 KR KR1019960004077A patent/KR970004632A/en not_active Application Discontinuation
- 1996-06-19 CN CN96106882A patent/CN1147741A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7212635B2 (en) | 2002-06-04 | 2007-05-01 | Canon Kabushiki Kaisha | Image processing apparatus, control method thereof, and image processing system |
| CN100338627C (en) * | 2002-06-04 | 2007-09-19 | 佳能株式会社 | Image processing apparatus and its controlling method and image proessing system |
| CN100544258C (en) * | 2003-01-23 | 2009-09-23 | 佳能株式会社 | Information processing method and equipment |
| CN100469132C (en) * | 2004-07-28 | 2009-03-11 | C&S技术有限公司 | Method for secrete communication between visual telephones |
Also Published As
| Publication number | Publication date |
|---|---|
| KR970004632A (en) | 1997-01-29 |
| JPH099075A (en) | 1997-01-10 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| CI01 | Correction of invention patent gazette |
Correction item: Applicant Correct: Murata Machinery Co., Ltd. False: Murata Machinery Ltd. Number: 16 Page: 72 Volume: 13 |
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| ERR | Gazette correction |
Free format text: CORRECT: APPLICANT; FROM: MURATA MACHINERY LTD. TO: MURATA MACHINERY CO., LTD. |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |