Patent US5684604A successfully refreshed from Google Patents.
US5684604A
Expired / Lapsed
US
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Image transmission method and apparatus therefor
Assignee: Canon Inc
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Filing: 1995-05-15
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Granted: 1997-11-04
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Expires: 2015-05-15
Abstract
Abstract Efficient image transmission is performed upon determining, based upon information sent from a receiving side at the time of negotiation, whether the apparatus on the receiving side is capable of progressive build-up, pseudo-progressive build-up in stripe units, sequential build-up or more than one of these build-up methods. Examples of the information sent from the receiving side include an instruction entered on the receiving side, the type of printer, the stripe width if the printer is capable of stripe printing, the communication speed and the memory capacity, etc. It is possible to use information from a line or network as well. This arrangement makes it possible to transmit image data that has been coded efficiently. Outstanding effects are obtained in multiple-address communication.
Inventors
- 👤 Toshifumi Nakajima
- 👤 Fumio Shoji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:58
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/333; H04N1/33307
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
99 words
An image transmission method comprising: a first determination step of determining whether an apparatus on a receiving side is capable of progressive build-up; a second determination step of determining whether the apparatus on the receiving side is suitable for the progressive build-up by detecting the type of printer on the receiving side; and a transmission step of performing coding and transmission by a progressive build-up method if progressive build-up is determined to be possible at said first determination step and if the printer on the receiving side is determined to be a page printer at said second determination step.
Claim 2
Dependent Claim
99 words
An image transmission method comprising: a first determination step of determining whether an apparatus on a receiving side is capable of progressive build-up; a second determination step of determining whether the apparatus on the receiving side is suitable for the progressive build-up by detecting the type of printer on the receiving side; and a transmission step of performing coding and transmission by a progressive build-up method if progressive build-up is determined to be possible at said first determination step and if the printer on the receiving side is determined to be a page printer at said second determination step.
Claim 3
Dependent Claim
53 words
The method according to claim 1, wherein a pseudo-sequential build-up method, which performs sequential build-up in stripe units, is selected if said printer is a line printer and the progressive build-up method is selected in case an image is to be formed on a device on the receiving side other than a printer.
Claim 4
Dependent Claim
29 words
The method according to claim 1, wherein the determination made at said second determination step is further based upon a memory capacity of the apparatus on the receiving side.
Claim 5
Dependent Claim
46 words
The method according to claim 3, wherein a pseudo-sequential build-up method, which performs sequential build-up in stripe units, is selected if said memory capacity is less than a predetermined capacity and the progressive build-up is selected if said memory capacity is greater than a predetermined capacity.
Claim 6
Dependent Claim
28 words
The method according to claim 3, further comprising a step of performing multiple-address transmission by repeating said first determination step, said second determination step and said transmission step.
Claim 7
Dependent Claim
22 words
The method according to claim 1, wherein the determination made at said second determination step is further based upon a communication speed.
Claim 8
Dependent Claim
45 words
The method according to claim 6, wherein the progressive build-up method is selected if communication speed is less than a predetermined speed and a pseudo-sequential build-up method, which performs sequential build-up in stripe units, is selected if communication speed is greater than a predetermined speed.
Claim 9
Dependent Claim
47 words
The method according to claim 1, further comprising: a third determination step of determining a printing width of the printer on the receiving side; and a step of setting a stripe width on a transmitting side in conformity with the determination made at said third determination step.
Claim 10
Dependent Claim
27 words
The method according to claim 8, further comprising a step of performing multiple-address transmission by repeating said first, second and third determination steps and said transmission step.
Claim 11
Dependent Claim
26 words
The method according to claim 1, further comprising a step of performing multiple-address transmission by repeating said first and second determination steps and said transmission step.
Claim 12
Dependent Claim
99 words
An image transmission method comprising: a first determination step of determining whether an apparatus on a receiving side is capable of pseudo-sequential build-up; a second determination step of determining whether the apparatus on the receiving side is suitable for the pseudo-sequential build-up by detecting the type of printer on the receiving side; and a transmission step of performing coding and transmission by a pseudo-sequential build-up method if pseudo-sequential build-up is determined to be possible at said first determination step and if the printer on the receiving side is determined to be a line printer at said second determination step.
Claim 13
Dependent Claim
99 words
An image transmission method comprising: a first determination step of determining whether an apparatus on a receiving side is capable of pseudo-sequential build-up; a second determination step of determining whether the apparatus on the receiving side is suitable for the pseudo-sequential build-up by detecting the type of printer on the receiving side; and a transmission step of performing coding and transmission by a pseudo-sequential build-up method if pseudo-sequential build-up is determined to be possible at said first determination step and if the printer on the receiving side is determined to be a line printer at said second determination step.
Claim 14
Dependent Claim
53 words
The method according to claim 11, wherein a pseudo-sequential build-up method, which performs sequential build-up in stripe units, is selected if said printer is a line printer and the progressive build-up method is selected in case an image is to be formed on a device on the receiving side other than a printer.
Claim 15
Dependent Claim
23 words
The method according to claim 11, further comprising a third determination step of determining memory capacity of the apparatus on the receiving side.
Claim 16
Dependent Claim
47 words
The method according to claim 13, wherein a pseudo-sequential build-up method, which performs sequential build-up in stripe units, is selected if said memory capacity is less than a predetermined capacity and the progressive build-up method is selected if said memory capacity is greater than a predetermined capacity.
Claim 17
Dependent Claim
28 words
The method according to claim 13, further comprising a step of performing multiple-address transmission by repeating said first determination step, said second determination step and said transmission step.
Claim 18
Dependent Claim
22 words
The method according to claim 11, wherein the determination made at said second determination step is further based upon a communication speed.
Claim 19
Dependent Claim
45 words
The method according to claim 16, wherein the progressive build-up method is selected if communication speed is less than a predetermined speed and a pseudo-sequential build-up method, which performs sequential build-up in stripe units, is selected if communication speed is greater than a predetermined speed.
Claim 20
Dependent Claim
47 words
The method according to claim 11, further comprising: a third determination step of determining a printing width of the printer on the receiving side; and a step of setting a stripe width on a transmitting side in conformity with the determination made at said third determination step.
Claim 21
Dependent Claim
27 words
The method according to claim 18, further comprising a step of performing multiple-address transmission by repeating said first, second and third determination steps and said transmission step.
Claim 22
Dependent Claim
26 words
The method according to claim 11, further comprising a step of performing multiple-address transmission by repeating said first and second determination steps and said transmission step.
Claim 23
Dependent Claim
90 words
An image transmission method comprising: a first determination step of determining whether an apparatus on a receiving side is capable of progressive build-up and; a second determination step of determining whether the apparatus on the receiving side is suitable for the progressive build-up by detecting memory capacity; and a transmission step of performing coding and transmission by a progressive build-up method if progressive build-up is determined to be possible at said first determination step and if said memory capacity is less than a predetermined capacity at said second determination step.
Claim 24
Dependent Claim
90 words
An image transmission method comprising: a first determination step of determining whether an apparatus on a receiving side is capable of progressive build-up and; a second determination step of determining whether the apparatus on the receiving side is suitable for the progressive build-up by detecting memory capacity; and a transmission step of performing coding and transmission by a progressive build-up method if progressive build-up is determined to be possible at said first determination step and if said memory capacity is less than a predetermined capacity at said second determination step.
Claim 25
Dependent Claim
85 words
An image transmission method comprising: a first determination step of determining whether an apparatus on a receiving side is capable of progressive build-up and; a second determination step of determining whether the apparatus on the receiving side is suitable for the progressive build-up by detecting communication speed; and a transmission step of performing coding and transmission by a progressive build-up method if progressive build-up is determined to be possible at said first determination step and if the communication speed is less than a predetermined speed.
Claim 26
Dependent Claim
85 words
An image transmission method comprising: a first determination step of determining whether an apparatus on a receiving side is capable of progressive build-up and; a second determination step of determining whether the apparatus on the receiving side is suitable for the progressive build-up by detecting communication speed; and a transmission step of performing coding and transmission by a progressive build-up method if progressive build-up is determined to be possible at said first determination step and if the communication speed is less than a predetermined speed.
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| 3.5 Years (Year 4) | 2000-11-03 | 2001-05-05 | 2001-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-03 | 2005-05-05 | 2005-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-03 | 2009-05-05 | 2009-11-04 | $7700.00 | Window Closed / Lapsed |