US5430800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facsimile apparatus
Assignee: Canon Inc
•
Filing: 1993-10-18
•
Granted: 1995-07-04
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Expires: 2013-10-18
Abstract
Abstract A facsimile apparatus is provided with changeover means that makes it possible to pass signals through or to bypass a coder, which encrypts transmission information, and a decoder, which decodes encrypted information that has been received. Whether or not a facsimile apparatus belonging to another party has an encrypting/decoding processing function is verified by a pre-procedure signal. If the other party's apparatus possesses an encrypting/decoding processing function, control is performed in such a manner that encrypting/decoding processing is applied solely to an image signal and a training-check signal transmitted before transmission/reception of the image signal, and encrypting/decoding processing is not applied to a procedure signal which accompanies transmission/reception of the image signal. If the other party's apparatus does not possess an encrypting/decoding processing function, it is possible to select between terminating communication and performing facsimile communication without executing encrypting/decoding processing.
Inventors
- 👤 Shigeo Miura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:03
CPC Classifications
H; H04; H04K; H04K1/00; H04N; H04N1/00; H04N1/32; H04N1/333; H04N1/33307; H04N1/44; H04N1/448; H04N1/4486
Claims Analysis
Total Claims: 76
Claim 1
Independent Claim
102 words
A facsimile apparatus for subjecting facsimile communication information to encryption, comprising: image input means for inputting digitized image information, encrypting means for encrypting the digitized image information, generating means for generating a training-check signal and a procedure signal, encryption control means for controlling said encrypting means to cause said encrypting means to encrypt the digitized image information and a training-check signal transmitted before transmission of the digitized image information, and to not encrypt a procedure signal which accompanies the transmission of the digitized image information, and transmission means for transmitting the encrypted digital image information and training-check signal and the procedure signal.
Claim 2
Dependent Claim
102 words
A facsimile apparatus for subjecting facsimile communication information to encryption, comprising: image input means for inputting digitized image information, encrypting means for encrypting the digitized image information, generating means for generating a training-check signal and a procedure signal, encryption control means for controlling said encrypting means to cause said encrypting means to encrypt the digitized image information and a training-check signal transmitted before transmission of the digitized image information, and to not encrypt a procedure signal which accompanies the transmission of the digitized image information, and transmission means for transmitting the encrypted digital image information and training-check signal and the procedure signal.
Claim 3
Dependent Claim
42 words
The apparatus according to claim 1, wherein said encryption control means controls said encrypting means to not execute any encryption prior to start of communication, and controls said encrypting means after it is verified that the receiving side possesses a decryption function.
Claim 4
Dependent Claim
35 words
The apparatus according to claim 1, further comprising first encryption halting means for allowing communication of the digitized image information and training-check signal without encryption if the receiving side does not possess a decryption function.
Claim 5
Dependent Claim
27 words
The apparatus according to claim 1, further comprising first transmission suspending means for suspending a transmission operation if the receiving side does not possess an encryption function.
Claim 6
Dependent Claim
30 words
The apparatus according to claim 1, wherein said encryption control means controls whether or not encryption is to be executed by controlling passage of transmission information through said encrypting means.
Claim 7
Dependent Claim
79 words
A facsimile apparatus for decrypting encrypted facsimile communication information that has been received, said apparatus comprising: receiving means for receiving encrypted facsimile communication information, decrypting means for decrypting the received facsimile communication information; and decryption control means for controlling said decrypting means to cause said decrypting means to decrypt digitized image information and a training-check signal transmitted before reception of the digitized image information, and to not decrypt a procedure signal which accompanies transmission of the digitized image information.
Claim 8
Dependent Claim
79 words
A facsimile apparatus for decrypting encrypted facsimile communication information that has been received, said apparatus comprising: receiving means for receiving encrypted facsimile communication information, decrypting means for decrypting the received facsimile communication information; and decryption control means for controlling said decrypting means to cause said decrypting means to decrypt digitized image information and a training-check signal transmitted before reception of the digitized image information, and to not decrypt a procedure signal which accompanies transmission of the digitized image information.
Claim 9
Dependent Claim
66 words
The apparatus according to claim 6, wherein said decryption control means controls said decrypting means to not execute any decrypting prior to start of communication, and controls said decrypting means to decrypt the digitized image information and the training-check signal, which is transmitted before transmission of the digitized image information, and to not decrypt a procedure signal which accompanies the transmission of the digitized image information.
Claim 10
Dependent Claim
101 words
The apparatus according to claim 6, further comprising: informing means for informing a transmitting side of a facsimile communication of a presence in said apparatus of decrypting means for decrypting the encrypted digital image information, wherein said decryption control means controls said decrypting means to decrypt the digitized image information and the training-check signal transmitted before reception of the digitized image information, which are sent from the transmitting side of a facsimile communication in accordance with information from said informing means, and controls said decrypting means to not decrypt a procedure signal which accompanies the transmission of the digitized image information.
Claim 11
Dependent Claim
65 words
The apparatus according to claim 8, wherein said decryption control means controls said decrypting means to not execute any decrypting prior to start of communication, and controls said decrypting means to decrypt the digitized image information and the training-check signal, which is transmitted before transmission of the digitized image information, after it is verified that the transmitting side of facsimile communication possesses an encryption function.
Claim 12
Dependent Claim
98 words
A facsimile apparatus for subjecting facsimile communication information to encryption and decryption, comprising: input image means for inputting digitized image information, receiving means for receiving facsimile information, generating means for generating a training-check signal and a procedure signal, encrypting-decrypting means for encrypting and decrypting information; and encryption-decryption control means for controlling said encrypting-decrypting means to cause said encrypting-decrypting means to encrypt or decrypt digital image information and a training-check signal transmitted/received before transmission or reception of the digitized image information, and to not encrypt or decrypt a procedure signal which accompanies the transmission of the digitized image information.
Claim 13
Dependent Claim
98 words
A facsimile apparatus for subjecting facsimile communication information to encryption and decryption, comprising: input image means for inputting digitized image information, receiving means for receiving facsimile information, generating means for generating a training-check signal and a procedure signal, encrypting-decrypting means for encrypting and decrypting information; and encryption-decryption control means for controlling said encrypting-decrypting means to cause said encrypting-decrypting means to encrypt or decrypt digital image information and a training-check signal transmitted/received before transmission or reception of the digitized image information, and to not encrypt or decrypt a procedure signal which accompanies the transmission of the digitized image information.
Claim 14
Dependent Claim
94 words
The apparatus according to claim 10, wherein said encryption-decryption control means controls said encrypting-decrypting means to not execute any encryption or decryption prior to start of communication, and in a case where the apparatus itself is an apparatus on a transmitting side, controls said encrypting-decrypting means, after it is verified that the receiving side possesses a decryption function, to encrypt the digitized image information and the training-check signal, which is transmitted before transmission of the digitized image information, and to not encrypt a procedure signal which accompanies the transmission of the digitized image information.
Claim 15
Dependent Claim
34 words
The apparatus according to claim 11, further comprising encryption-decryption halting means for allowing communication of the digitized image information and training-check signal without encryption if the receiving side does not possess a decryption function.
Claim 16
Dependent Claim
27 words
The apparatus according to claim 10, further comprising second transmission suspending means for suspending a transmission operation of the receiving side does not possess an encryption function.
Claim 17
Dependent Claim
38 words
The apparatus according to claim 10, wherein said encryption-decryption control means controls whether or not encryption is to be executed by controlling whether or not transmission information is to be passed through encrypting means of said encrypting-decrypting means.
Claim 18
Dependent Claim
80 words
The apparatus according to claim 10, wherein said encryption-decryption control means controls said encrypting-decrypting means to not execute any decrypting prior to start of communication, and in a case where the apparatus itself is an apparatus on a receiving side, controls said encrypting-decrypting means to decrypt the digitized image information and the training-check signal, which is transmitted before transmission of the digitized image information, and to not decrypt a procedure signal which accompanies the transmission of the digitized image information.
Claim 19
Dependent Claim
98 words
The apparatus according to claim 10, further comprising: informing means for informing a transmitting side of a facsimile communication of presence of decrypting means for decrypting the encrypted digital image information; wherein said encryption-decryption control means controls said encrypting-decrypting means to decrypt only the digitized image information and the training-check signal transmitted before reception of the digitized image information, which are sent from a transmission side of a facsimile communication in accordance with information from said informing means, and controls said encrypting-decrypting means to not decrypt a procedure signal which accompanies the transmission of the digitized image information.
Claim 20
Dependent Claim
63 words
The apparatus according to claim 16, wherein said encryption-decryption control means controls said encrypting-decrypting means to not executed prior to start of communication, and controls that the digitized image information and the training-check signal, which is transmitted before transmission of the digitized image information, are decrypted, after it is verified that the transmission side of a facsimile communication apparatus possesses a decryption function.
Claim 21
Dependent Claim
81 words
A facsimile communication method for facsimile apparatuses for subjecting facsimile communication information to encryption, comprising the steps of: inputting digitized image information, generating a training-check signal and a procedure signal, encrypting digitized image information inputted at the input step and a training-check signal generated at the generating step, disabling encrypting of a procedure signal generated at the generating step and which accompanies transmission of the digitized image information, and transmitting the digitized image information and training-check signal and the procedure signal.
Claim 22
Dependent Claim
81 words
A facsimile communication method for facsimile apparatuses for subjecting facsimile communication information to encryption, comprising the steps of: inputting digitized image information, generating a training-check signal and a procedure signal, encrypting digitized image information inputted at the input step and a training-check signal generated at the generating step, disabling encrypting of a procedure signal generated at the generating step and which accompanies transmission of the digitized image information, and transmitting the digitized image information and training-check signal and the procedure signal.
Claim 23
Dependent Claim
71 words
The method according to claim 18, wherein encryption is not executed prior to start of communication, and after it is verified that a receiving side, at transmission of a facsimile communication, possesses a decryption function the digitized image information and the training-check signal, which is transmitted before transmission of the digitized image information, are encrypted and the procedure signal which accompanies the transmission of the digitized image information is not encrypted.
Claim 24
Dependent Claim
37 words
The method according to claim 18, further comprising the step of allowing communication of the digitized image information and training-check signal without encryption if it is verified that a receiving side does not possess a decryption function.
Claim 25
Dependent Claim
33 words
The apparatus according to claim 18, further comprising the step of suspending a transmission operation of a sending side if it is verified that the receiving side does not possess an encryption function.
Claim 26
Dependent Claim
61 words
A facsimile communication method for facsimile apparatuses for decrypting encrypted facsimile communication information that has been received, comprising the steps of: receiving facsimile communication information, separating the facsimile communication information into digitized image information, a training-check signal and a procedure signal, and decrypting the digitized image information and training-check signal and preventing decrypting of the procedure signal generated by separation step.
Claim 27
Dependent Claim
61 words
A facsimile communication method for facsimile apparatuses for decrypting encrypted facsimile communication information that has been received, comprising the steps of: receiving facsimile communication information, separating the facsimile communication information into digitized image information, a training-check signal and a procedure signal, and decrypting the digitized image information and training-check signal and preventing decrypting of the procedure signal generated by separation step.
Claim 28
Dependent Claim
53 words
The method according to claim 22, wherein decrypting is not executed prior to start of communication, and the digitized image information and the training-check signal, which is transmitted before transmission of the digitized image information are decrypted, and a procedure signal which accompanies the transmission of the digitized image information is not decrypted.
Claim 29
Dependent Claim
78 words
The method according to claim 22, further comprising the step of decrypting the digitized image information and the training-check signal transmitted before reception of the digitized image information, which are sent from a transmitting side of a facsimile communication in accordance with information of presence of decrypting function of decrypting the encrypting facsimile communication information from a receiving side to the transmitting side, and not decrypting a procedure signal which accompanies the transmission of the digitized image information.
Claim 30
Dependent Claim
53 words
The method according to claim 24, wherein decrypting is not executed prior to start of communication, and the digitized image information and the training-check signal which is transmitted before transmission of the digitized image information are decrypted, after it is verified that the transmitting side of a facsimile communication possesses an encryption function.
Claim 31
Dependent Claim
107 words
A facsimile communication method for facsimile apparatus for subjecting facsimile communication information to encryption and decrypting processing, comprising the steps of: inputting digitized image information, generating a training-check signal and a procedure signal, encrypting digital image information inputted at the input step and the training-check signal generated at the generating step and not encrypting the procedure signal generated at the generating step, receiving facsimile communication information, separating digital image information, a training-check signal and a procedure signal from the facsimile communication information, and decrypting the digital image information and training-check signal separated at the separation step and not decrypting the procedure signal separated at the separation step.
Claim 32
Dependent Claim
107 words
A facsimile communication method for facsimile apparatus for subjecting facsimile communication information to encryption and decrypting processing, comprising the steps of: inputting digitized image information, generating a training-check signal and a procedure signal, encrypting digital image information inputted at the input step and the training-check signal generated at the generating step and not encrypting the procedure signal generated at the generating step, receiving facsimile communication information, separating digital image information, a training-check signal and a procedure signal from the facsimile communication information, and decrypting the digital image information and training-check signal separated at the separation step and not decrypting the procedure signal separated at the separation step.
Claim 33
Dependent Claim
87 words
The method according to claim 26, wherein encryption and decryption are not executed prior to start of communication, and in a case where the apparatus itself is an apparatus on a transmitting side, after it is verified that a receiving side at transmission of a facsimile communication possesses a decryption function, the digitized image information and the training-check signal, which is transmitted before transmission of the digitized image information are encrypted and a procedure signal which accompanies the transmission of the digitized image information is not encrypted.
Claim 34
Dependent Claim
37 words
The method according to claim 27, further comprising the step of allowing communication of the digitized image information and training-check signal without encryption if it is verified that the receiving side does not possess a decryption function.
Claim 35
Dependent Claim
27 words
The method according to claim 26, further comprising the step of suspending a transmission operation in case that the receiving side does not possess an encryption function.
Claim 36
Dependent Claim
67 words
The method according to claim 26, wherein decrypting is not executed prior to start of communication, and in a case where the apparatus itself is an apparatus on a receiving side, the digitized image, information and the training-check signal, which is transmitted before transmission of the digitized image information, are decrypted and a procedure signal which accompanies the transmission of the digitized image information is not decrypted.
Claim 37
Dependent Claim
88 words
The method according to claim 26, further comprising the step of informing a transmitting side of a facsimile communication of presence of a function of decrypting the encrypted facsimile communication information; wherein the digitized image information and the training-check signal transmitted before reception of the digitized image information, which are sent from a transmitting side of facsimile communication in accordance with the information of the presence of the decrypting function, are decrypted and a procedure signal which accompanies the transmission of the digitized image information is not decrypted.
Claim 38
Dependent Claim
52 words
The method according to claim 31, wherein decrypting is not executed prior to start of communication, and the digitized image information and the training-check signal which is transmitted before transmission of the digitized image information are decrypted after it is verified that the transmission side of facsimile communication possesses an encryption function.
Claim 39
Dependent Claim
78 words
A facsimile apparatus for subjecting facsimile communication information to encryption, comprising image input means for inputting digitized image information, encrypting means for encrypting the digitized image information, generating means for generating a procedure signal, encryption control means for controlling said encrypting means to cause said encrypting means to encrypt the digitized image information, and to not encrypt a procedure signal which accompanies transmission of the digitized image information, and transmission means for transmitting the encrypted digital image information.
Claim 40
Dependent Claim
78 words
A facsimile apparatus for subjecting facsimile communication information to encryption, comprising image input means for inputting digitized image information, encrypting means for encrypting the digitized image information, generating means for generating a procedure signal, encryption control means for controlling said encrypting means to cause said encrypting means to encrypt the digitized image information, and to not encrypt a procedure signal which accompanies transmission of the digitized image information, and transmission means for transmitting the encrypted digital image information.
Claim 41
Dependent Claim
42 words
The apparatus according to claim 33, wherein said encryption control means controls said encrypting means to not execute any encryption prior to start of communication, and controls said encrypting means after it is verified that the receiving side possesses a decryption function.
Claim 42
Dependent Claim
32 words
The apparatus according to claim 33, further comprising first encryption halting means for allowing communication of the digitized image information without encryption if the receiving side does not possess a decryption function.
Claim 43
Dependent Claim
27 words
The apparatus according to claim 33, further comprising first transmission suspending means for suspending a transmission operation if the receiving side does not possess an encryption function.
Claim 44
Dependent Claim
30 words
The apparatus according to claim 33, wherein said encryption control means controls whether or not encryption is to be executed by controlling passage of transmission information through said encryption means.
Claim 45
Dependent Claim
67 words
A facsimile apparatus for decrypting encrypted facsimile communication information that has been received, said apparatus comprising: receiving means for receiving encrypted facsimile communication information, decrypting means for decrypting the received facsimile communication information; and decryption control means for controlling said decrypting means to cause said decrypting means to decrypt digitized image information and to not decrypt a procedure signal which accompanies transmission of the digitized image information.
Claim 46
Dependent Claim
67 words
A facsimile apparatus for decrypting encrypted facsimile communication information that has been received, said apparatus comprising: receiving means for receiving encrypted facsimile communication information, decrypting means for decrypting the received facsimile communication information; and decryption control means for controlling said decrypting means to cause said decrypting means to decrypt digitized image information and to not decrypt a procedure signal which accompanies transmission of the digitized image information.
Claim 47
Dependent Claim
52 words
The apparatus according to claim 38, wherein said decryption control means controls said decrypting means to not execute any decrypting prior to start of communication, and controls said decrypting means to decrypt the digitized image information and to not decrypt a procedure signal which accompanies the transmission of the digitized image information.
Claim 48
Dependent Claim
85 words
The apparatus according to claim 38, further comprising: informing means for informing a transmitting side of a facsimile communication of presence of decrypting means for decrypting the encrypted digital image information, wherein said decryption control means controls said decrypting means to decrypt the digitized image information which are sent from the transmitting side of a facsimile communication in accordance with information from said informing means, and controls said decrypting means to not decrypt a procedure signal which accompanies the transmission of the digitized image information.
Claim 49
Dependent Claim
49 words
The apparatus according to claim 40, wherein said decryption control means controls said decrypting means to not execute any decrypting prior to start of communication, and controls that the digitized image information are decrypted, after it is verified that the transmitting side of facsimile communication possesses an encryption function.
Claim 50
Dependent Claim
80 words
A facsimile apparatus for subjecting facsimile communication information to encryption and decrypting, comprising: input image means for inputting digitized image information, receiving means for receiving facsimile information, generating means for generating a procedure signal, encrypting-decrypting means for encrypting and decrypting information, and encryption-decryption control means for controlling said encrypting-decrypting means to cause said encrypting-decrypting means to encrypt or decrypt digital image information and to not encrypt or decrypt a procedure signal which accompanies the transmission of the digitized image information.
Claim 51
Dependent Claim
80 words
A facsimile apparatus for subjecting facsimile communication information to encryption and decrypting, comprising: input image means for inputting digitized image information, receiving means for receiving facsimile information, generating means for generating a procedure signal, encrypting-decrypting means for encrypting and decrypting information, and encryption-decryption control means for controlling said encrypting-decrypting means to cause said encrypting-decrypting means to encrypt or decrypt digital image information and to not encrypt or decrypt a procedure signal which accompanies the transmission of the digitized image information.
Claim 52
Dependent Claim
79 words
The apparatus according to claim 42, wherein said encryption-decryption control means controls said encrypting-decrypting means to not execute encryption or decryption prior to start of communication, and in a case where the apparatus itself is an apparatus on a transmitting side, controls said encrypting-decrypting means, after it is verified that the receiving side possesses a decryption function, to encrypt the digitized image information and to not encrypt a procedure signal which accompanies the transmission of the digitized image information.
Claim 53
Dependent Claim
31 words
The apparatus according to claim 43, further comprising encryption-decryption halting means for allowing communication of the digitized image information without encryption if the receiving side does not posses a decryption function.
Claim 54
Dependent Claim
27 words
The apparatus according to claim 42, further comprising second transmission suspending means for suspending a transmission operation if the receiving side does not possess an encryption function.
Claim 55
Dependent Claim
38 words
The apparatus according to claim 42, wherein said encryption-decryption control means controls whether or not encryption is to be executed by controlling whether or not transmission information is to be passed through encrypting means of said encrypting-decrypting means.
Claim 56
Dependent Claim
66 words
The apparatus according to claim 42, wherein said encryption-decryption control means controls said encrypting-decrypting means to not execute any decrypting prior to start of communication, and in a case where the apparatus itself is an apparatus on a receiving side, controls said encrypting-decrypting means to decrypt the digitized image information and to not decrypt a procedure signal which accompanies the transmission of the digitized image information.
Claim 57
Dependent Claim
85 words
The apparatus according to claim 42, further comprising: informing means for informing a transmitting side of a facsimile communication of presence of decrypting means for decrypting the encrypted digital image information, wherein said encryption-decryption control means controls said encrypting-decrypting means to decrypt the digitized image information which are sent from a transmission side of a facsimile communication in accordance with information from said informing means, and controls said encrypting-decrypting means to not decrypt a procedure signal which accompanies the transmission of the digitized image information.
Claim 58
Dependent Claim
48 words
The apparatus according to claim 48, wherein said encryption-decryption control means controls said encrypting-decrypting means to not executed prior to start of communication, and controls that the digitized image information are decrypted, after it is verified that the transmission side of facsimile communication apparatus possesses a decryption function.
Claim 59
Dependent Claim
65 words
A facsimile communication method for facsimile apparatuses for subjecting facsimile communication information to encryption, comprising the steps of: inputting digitized image information, generating a procedure signal, encrypting digitized image information inputted at the input step, disabling encrypting of a procedure signal generated at the generating step and which accompanies transmission of the digitized image information, and transmitting the digitized image information and the procedure signal.
Claim 60
Dependent Claim
65 words
A facsimile communication method for facsimile apparatuses for subjecting facsimile communication information to encryption, comprising the steps of: inputting digitized image information, generating a procedure signal, encrypting digitized image information inputted at the input step, disabling encrypting of a procedure signal generated at the generating step and which accompanies transmission of the digitized image information, and transmitting the digitized image information and the procedure signal.
Claim 61
Dependent Claim
57 words
The method according to claim 50, wherein encryption is not executed prior to start of communication, and after it is verified that a receiving side, at transmission of a facsimile communication, possesses a decryption function, the digitized image information is encrypted and the procedure signal which accompanies the transmission of the digitized image information is not encrypted.
Claim 62
Dependent Claim
34 words
The method according to claim 50, further comprising the step of allowing communication of the digitized image information without encryption if it is verified that a receiving side does not possess a decryption function.
Claim 63
Dependent Claim
33 words
The method according to claim 50, further comprising the step of suspending a transmission operation of a sending side if it is verified that the receiving side does not possess an encryption function.
Claim 64
Dependent Claim
51 words
A facsimile communication method for facsimile apparatuses for decrypting encrypted facsimile communication information that has been received, comprising the steps of: receiving facsimile communication information, separating the facsimile communication information into digitized image information and a procedure signal, and decrypting the digitized image information and preventing decrypting of the procedure signal.
Claim 65
Dependent Claim
51 words
A facsimile communication method for facsimile apparatuses for decrypting encrypted facsimile communication information that has been received, comprising the steps of: receiving facsimile communication information, separating the facsimile communication information into digitized image information and a procedure signal, and decrypting the digitized image information and preventing decrypting of the procedure signal.
Claim 66
Dependent Claim
39 words
The method according to claim 54, wherein decrypting is not executed prior to start of communication, and the digitized image information is decrypted, and a procedure signal which accompanies the transmission of the digitized image information is not decrypted.
Claim 67
Dependent Claim
66 words
The method according to claim 54, further comprising the step of decrypting the digitized image information which are sent from a transmitting side of a facsimile communication in accordance with information of presence of decrypting function of decrypting the encrypted facsimile communication information from a receiving side to the transmitting side, and not decrypting a procedure signal which accompanies the transmission of the digitized image information.
Claim 68
Dependent Claim
39 words
The method according to claim 56, wherein decrypting is not executed prior to start of communication, and the digitized image information is decrypted, after it is verified that the transmitting side of a facsimile communication possesses an encryption function.
Claim 69
Dependent Claim
83 words
A facsimile communication method for facsimile apparatuses for subjecting facsimile communication information to encryption and decrypting processing, comprising the steps of: inputting digitized image information, generating a procedure signal, encrypting digital image information inputted at the input step and not encrypting the procedure signal generated at the generating step, receiving facsimile communication information, separating digital image information and a procedure signal from the facsimile communication information, and decrypting the digital image information and not decrypting the procedure signal separated at the separation step.
Claim 70
Dependent Claim
83 words
A facsimile communication method for facsimile apparatuses for subjecting facsimile communication information to encryption and decrypting processing, comprising the steps of: inputting digitized image information, generating a procedure signal, encrypting digital image information inputted at the input step and not encrypting the procedure signal generated at the generating step, receiving facsimile communication information, separating digital image information and a procedure signal from the facsimile communication information, and decrypting the digital image information and not decrypting the procedure signal separated at the separation step.
Claim 71
Dependent Claim
73 words
The method according to claim 58, wherein encryption and decryption are not executed prior to start of communication, and in a case where the apparatus itself is an apparatus on a transmitting side, after it is verified that a receiving side at transmission of a facsimile communication possesses a decryption function, the digitized image information are encrypted and a procedure signal which accompanies the transmission of the digitized image information is not encrypted.
Claim 72
Dependent Claim
34 words
The method according to claim 59, further comprising the step of allowing communication of the digitized image information without encryption if it is verified that the receiving side does not possess a decryption function.
Claim 73
Dependent Claim
27 words
The method according to claim 58, further comprising the step of suspending a transmission operation in case that the receiving side does not possess an encryption function.
Claim 74
Dependent Claim
53 words
The method according to claim 58, wherein decrypting is not executed prior to start of communication, and in a case where the apparatus itself is an apparatus on a receiving side, the digitized image information is decrypted and a procedure signal which accompanies the transmission of the digitized image information is not decrypted.
Claim 75
Dependent Claim
76 words
The method according to claim 58, further comprising the step of informing a transmitting side of a facsimile communication of presence of a function of decrypting the encrypted facsimile communication information; wherein the digitized image information which are sent from a transmitting side of facsimile communication in accordance with the information of the presence of the decrypting function, are decrypted and a procedure signal which accompanies the transmission of the digitized image information is not decrypted.
Claim 76
Dependent Claim
38 words
The method according to claim 63, wherein decrypting is not executed prior to start of communication, and the digitized image information is decrypted after it is verified that the transmission side of facsimile communication possesses an encryption function.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-07-03 | 1999-01-02 | 1999-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-03 | 2003-01-02 | 2003-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-03 | 2007-01-02 | 2007-07-04 | $7700.00 | Window Closed / Lapsed |