Patent EP0689342A2 successfully refreshed from Google Patents.
EP0689342A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Image information transmitting method and apparatus
Assignee: Canon Inc
•
Filing: 1995-06-20
•
Granted: —
•
Expires: 2015-06-20
Abstract
Abstract An image information transmitting/receiving apparatus for time and cost-saving repetitive transmission. In facsimile communication, image data where further information is added to previously-transmitted image data is often received. In the present apparatus, the original image data is stored, and only difference data from the original image data is transmitted, thus the whole image can be reproduced at the receiving side, using the received difference data. Upon transmitting the difference image information, identification information identifying the difference image information is added to the difference information, and the entire image data to be received by the receiving side is stored. Upon receiving the difference image information, the received difference information is combined with the stored image data, and an image is reproduced based on the combined image data. Further, the image data used for image reproduction is stored as original image data for the next transmission. In this manner, once the original image data is stored, only difference data is sent at each subsequent transmission, thus reducing the amount of transmission data.
Inventors
- 👤 Kazutoshi C/O Canon Kabushiki Kaisha Shimada
- 👤 Takashi C/O Canon Kabushiki Kaisha Harada
- 👤 Eisaku C/O Canon Kabushiki Kaisha Tatsumi
- 👤 Katsuhiko C/O Canon Kabushiki Kaisha Nagasaki
- 👤 Shigeki C/O Canon Kabushiki Kaisha Mori
- 👤 Ryoji C/O Canon Kabushiki Kaisha Fukuda
- 👤 Kazuhiro C/O Canon Kabushiki Kaisha Matsubayashi
- 👤 Shinichi C/O Canon Kabushiki Kaisha Sunakawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 13:36
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/32101; H04N1/32128; H04N1/41; H04N1/411; H04N1/413; H04N1/417; H04N1/4177; H04N2201/00; H04N2201/32; H04N2201/3201; H04N2201/3225; H04N2201/3226; H04N2201/3243; H04N2201/3278
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
70 words
An image information transmission apparatus for transmitting image information, characterised by comprising: memory means (3) for storing original image information; input means (1, 801) for inputting image information; calculation means (4) for calculating difference image information between the image information inputted by said input means and the original image information stored in said memory means; and transmission means (6) for transmitting the difference image information calculated by said calculation means.
Claim 2
Dependent Claim
105 words
An image information receiving apparatus for receiving image information, characterised by comprising: memory means (3) for storing original image information; reception means (7) for receiving image information; detection means (8) for detecting identification information, which indicates that the image information received by said reception means is difference image information from the original image information, from the received image data; combination means (9) for, if said detection means detects the identification information, combining the original image information stored in said memory means with the image information received by said reception means; and output means (11, 811) for outputting the image information combined by said combination means.
Claim 3
Dependent Claim
35 words
The apparatus according to claim 2, characterised by further comprising addition means (10) for, if said detection means detects the identification information, adding the identification information to the image information combined by said combination means.
Claim 4
Dependent Claim
82 words
The apparatus according to claim 2, wherein said memory means holds the original image information and identification information which indicates that the image information is the original image information of the difference image information, and wherein said combination means compares the identification information stored in said memory means with the identification information detected by said detection means, and if those identification informations coincide, combines the original image information stored in said memory means with the image information received by said reception means.
Claim 5
Dependent Claim
75 words
The apparatus according to Claim 2, characterized by further comprising difference storage means (S34, S35, S37) for storing difference image information from the original image information stored in said memory means for each destination of transmission of the difference image information, wherein if the image information received by said reception means is the difference image information, said combination means combines the difference image information with the difference image information stored in said difference storage means.
Claim 6
Dependent Claim
36 words
The apparatus according to Claim 5, wherein said output means outputs the image data combined from the original image information stored in said memory means and the difference image information stored in said difference storage means.
Claim 7
Dependent Claim
178 words
An image information communication apparatus for transmitting/receiving image information, characterized by comprising: input means (1, 801) for inputting image information; first memory means (3) for storing the image information inputted by said input means; second memory means (3) for storing image information to be outputted; calculation means (4) for calculating difference image information between the image information inputted by said input means and image information stored in said second memory means; transmission means (6) for transmitting the difference image information calculated by said calculation means; reception means (7) for receiving image information; detection means (8) for detecting identification information which indicates that the image information received by said reception means is difference image information from original image information; combination means (9) for, if said detection means detects the identification information, combining the image information stored in said first memory means with the image information received by said reception means; and output means (11, 811) for outputting the image information combined by said combination means, wherein said second memory means holds the image information combined by said combination means.
Claim 8
Independent Claim
45 words
The apparatus according to any one of claims 1, 2 and 7, characterized by further comprising instruction means (S2, S3) for instructing transmission of the difference image information, wherein said calculation means calculates the difference image information in accordance with instruction by said instruction means.
Claim 9
Dependent Claim
30 words
The apparatus according to Claim 8, wherein said transmission means adds identification information to control information for transmitting the image information, in accordance with the instruction by said instruction means.
Claim 10
Independent Claim
62 words
The apparatus according to any one of claims 1, 2 and 7, characterized by further comprising detection means (2) for detecting identification information, which indicates that image information inputted by said input means is difference image information from the original image information, from the input image information, wherein said calculation means calculates the difference image information in accordance with the identification information.
Claim 11
Dependent Claim
84 words
The apparatus according to Claim 10, wherein the identification information includes a character portion where character data is provided with respect to the original image information and a suffix to which a different value is provided at each transmission of difference image data, and wherein if identification information of the original image information stored in said memory means and the identification information of the image information inputted by said input means coincide, said calculation means calculates the difference image information between those image informations.
Claim 12
Dependent Claim
19 words
The apparatus according to either claim 1 or claim 7, wherein said input means is an image scanner (21).
Claim 13
Dependent Claim
35 words
The apparatus according to either claim 1 or claim 7, wherein said input means is a digitizer (25) which inputs image data to be added to the image data stored in said first memory means.
Claim 14
Independent Claim
24 words
The apparatus according to any one of claims 1, 2 or 7, wherein said calculation means generates difference image information for each transmission destination.
Claim 15
Dependent Claim
34 words
The apparatus according to Claim 10, further comprising addition means for (10), if said second detection means detects the identification information, adding the identification information to the image information combined by said combination means.
Claim 16
Dependent Claim
86 words
The apparatus according to Claim 10, wherein said second memory means holds the original image information and identification information which indicates that the image information is the original image information of the difference image information, and wherein said combination means compares the identification information stored in said second memory means with the image information detected by said second detection means, and if those identification informations coincide, combines the original image information stored in said second memory means with the image information inputted by said input means.
Claim 17
Dependent Claim
18 words
The apparatus according to Claim 7, wherein said output means includes printing means (22) for print-outputting an image.
Claim 18
Dependent Claim
18 words
The apparatus according to Claim 7, wherein said output means includes display means (24) for display-outputting an image.
Claim 19
Dependent Claim
76 words
The apparatus according to Claim 7, characterized by further comprising difference storage means (S34, S35, S37) for storing difference image information from the original image information stored in said second memory means for each destination of transmission of the difference image information, wherein if the image information received by said reception means is the difference image information, said combination means combines the difference image information with the difference image information stored in said difference storage means.
Claim 20
Dependent Claim
37 words
The apparatus according to Claim 19, wherein said output means outputs the image data combined from the original image information stored in said second memory means and the difference image information stored in said difference storage means.
Claim 21
Dependent Claim
227 words
A facsimile apparatus for transmitting/receiving image information, characterized by comprising: an image scanner (1, 21) for inputting image information; first memory means (3) for storing the image information inputted by said image scanner; second memory means (3) for storing image information to be outputted; first detection means (2) for detecting identification pattern data, indicating that the image data inputted by said image scanner is difference image information, from the image data inputted by the image scanner; calculation means (4) for, if said first detection means detects the identification pattern data, calculating the difference image information between the image information inputted by said image scanner and the image information stored in said second memory means; transmission means (6) for transmitting the difference image information calculated by said calculation means, with identification information identifying the difference image information; reception means (7) for receiving image information; second detection means (8) for detecting the identification information; combination means (9) for, if said second detection means detects the identification information, combining the image information stored in said first memory means with the image information received by said reception means, and adding the identification pattern data to the combined image data; and a printer (11) for print-outputting an image based on the image information combined by said combination means, wherein said second memory means holds the image information combined by said combination means.
Claim 22
Dependent Claim
180 words
A facsimile apparatus for transmitting/receiving image information, characterized by comprising: a digitizer (801) for inputting image information; first memory means (3) for storing the image information inputted by said digitizer; second memory means (3) for storing image information to be outputted; calculation means (4) for calculating difference image information between the image information stored in said first memory means and the image information stored in said second memory means; transmission means (6) for transmitting the difference image information calculated by said calculation means, with identification information identifying the difference image information; reception means for (7) receiving image information; second detection means (8) for detecting the identification information from the image information received by said reception means; combination means (9) for, if said second detection means detects the identification information, combining the image information stored in said first memory means with the image information received by said reception means; and a display (811) for display-outputting an image based on the image information combined by said combination means, wherein said second memory means holds the image information combined by said combination means.
Claim 23
Dependent Claim
75 words
An image information transmission method for transmitting image information, characterized by comprising: a storage step (S22) of storing original image information; an input step (S17) of inputting image information; a calculation step (S29) of calculating difference image information between the image information inputted in said input step and the original image information stored in said storage step; and a transmission step (S31, S41, S43) of transmitting the difference image information calculated in said calculation step.
Claim 24
Dependent Claim
112 words
An image information receiving method for receiving image information, characterized by comprising: a storage step of storing original image information; a reception step (S1) of receiving image information; a detection step (S2) of detecting identification information, which indicates that the image information received in said reception step is difference image information from the original image information, from the received image data; a combination step (S11, S46) of, if the identification information is detected in said detection step, combining the original image information stored in said storage step with the image information received in said reception step; and an output step (S14, S47) of outputting the image information combined in said combination step.
Claim 25
Dependent Claim
38 words
The method according to Claim 24, characterized by further comprising an addition step (S7) of, if the identification information is detected in said detection step, adding the identification information to the image information combined in said combination step.
Claim 26
Dependent Claim
87 words
The method according to Claim 24, wherein in said storage step, the original image information and identification information which indicates that the image information is the original image information of the difference image information are stored, and wherein in said combination step, the identification information stored in said storage step is compared with the identification information detected in said detection step, and if those identification informations coincide, the original image information stored in said storage step is combined with the image information received in said reception step.
Claim 27
Dependent Claim
78 words
The method according to Claim 24, characterized by further comprising a difference storage step (S35, S36, S37) of storing difference image information from the original image information, stored in said storage step, for each destination of transmission of the difference image information, wherein if the image information received in said reception step is the difference image information, in said combination step, the difference image information is combined with the difference image information stored in said difference storage step.
Claim 28
Dependent Claim
39 words
The method according to Claim 27, wherein in said output step, the image data combined from the original image information stored in said storage step and from the difference image information stored in said difference storage step is outputted.
Claim 29
Dependent Claim
188 words
An image information communication method for transmitting/receiving image information, characterized by comprising: an input step (S1) of inputting image information; a first storage step (S6, S33) of storing the image information inputted in said input step; a calculation step (S29) of calculating difference image information between the image information inputted in said input step and image information stored in said second storage step; a transmission step (S31, S41, S43) of transmitting the difference image information calculated in said calculation step; a reception step (S1) of receiving image information; a detection step (S3, S44) of detecting identification information which indicates that the image information received in said reception step is difference image information from original image information; a combination step (S35, S46) of, if the identification information is detected in said detection step, combining the image information stored in said first storage step with the image information received in said reception step; an output step (S14, S1514, S47) of outputting the image information combined in said combination step; and a second storage step (S12) of storing the image information combined in said combination step as the original image information.
Claim 30
Dependent Claim
44 words
The method according to claim 23 or claim 29, characterized by further comprising an instruction step of instructing transmission of the difference image information, wherein in said calculation step, the difference image information is calculated in accordance with instruction made in said instruction step.
Claim 31
Dependent Claim
36 words
The method according to Claim 30, wherein in said transmission step (S31, S41, S43), identification information is added to control information for transmitting the image information, in accordance with the instruction made in said instruction step.
Claim 32
Dependent Claim
63 words
The method according to claim 23 or claim 29, characterized by further comprising a detection step (S3, S44) of detecting identification information, which indicates that image information inputted in said input step is difference image information from the original image information, from the input image information, wherein in said calculation step, the difference image information is calculated in accordance with the identification information.
Claim 33
Dependent Claim
85 words
The method according to Claim 32, wherein the identification information includes a character portion where character data is provided with respect to the original image information and suffix to which a different value is provided at each transmission of difference image data, and wherein if identification information of the original image information stored in said storage step and the identification information of the image information inputted in said input step coincide, the difference image information between those image informations is calculated in said calculation step.
Claim 34
Dependent Claim
23 words
The method according to claim 23 or claim 29, wherein in said calculation step, difference image information is generated for each transmission destination.
Claim 35
Dependent Claim
41 words
The method according to Claim 32, characterized by further comprising an addition step (S13, S40, S42) of, if the identification information is detected in said second detection step, adding the identification information to the image information combined in said combination step.
Claim 36
Dependent Claim
91 words
The method according to Claim 32, wherein in said second storage step, the original image information and identification information which indicates that the image information is the original image information of the difference image information are stored, and wherein in said combination step, the identification information stored in said second storage step is compared with the image information detected in said second detection step, and if those identification informations coincide, the original image information stored in said second storage step is combined with the image information inputted in said input step.
Claim 37
Dependent Claim
79 words
The method according to claim 32, characterized by further comprising a difference storage step (S35, S36, S37) of storing difference image information from the original image information, stored in said second storage step, for each destination of transmission of the difference image information, wherein if the image information received in said reception step is the difference image information, in said combination step, the difference image information is combined with the difference image information stored in said difference storage step.
Claim 38
Dependent Claim
40 words
The method according to claim 37, wherein in said output step, the image data combined from the original image information stored in said second storage step and from the difference image information stored in said difference storage step is outputted.
Claim 39
Dependent Claim
23 words
Facsimile apparatus comprising means for storing data which has been transmitted so that the data can be retransmitted with additional data added thereto.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.