US4845569A
Expired / Lapsed
US
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Image transmission or encoding apparatus
Assignee: Canon Inc
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Filing: 1988-09-07
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Granted: 1989-07-04
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Expires: 2008-09-07
Abstract
Abstract An image transmission apparatus including a storage unit for storing an image signal; a conversion unit for converting the number of dots of one line image signal in the storage unit; and a transmission unit for selectively transmitting the output of the conversion unit or an image signal in the storage unit.
Inventors
- 👤 Sadasuke Kurahayashi
- 👤 Masahiro Sakamoto
- 👤 Masatomo Takahashi
- 👤 Motoaki Yoshino
- 👤 Yasuhide Ueno
- 👤 Tsunehiro Watanabe
- 👤 Tsuneo Negi
- 👤 Takeshi Ono
- 👤 Shigeo Miura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:45
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/333; H04N1/33338; G; G06; G06T; G06T9/00; G06T9/005; H04N1/33307; H04N1/41; H04N1/411; H04N1/413; H04N1/417; H04N1/4175
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
106 words
An image transmission apparatus comprising: storage means for storing an image signal; conversion means for converting a number of dots in one line represented by the image signal in said storage means; reception means for receiving an identification signal from a reception side, the identification signal representing a type of machine on the reception side; and transmission means for selectively transmitting the image signal converted by said conversion means or the image signal stored in said storage means, wherein said transmission means selects the image signal converted by said conversion means or the image signal stored in said storage means in response to the identification signal.
Claim 2
Dependent Claim
106 words
An image transmission apparatus comprising: storage means for storing an image signal; conversion means for converting a number of dots in one line represented by the image signal in said storage means; reception means for receiving an identification signal from a reception side, the identification signal representing a type of machine on the reception side; and transmission means for selectively transmitting the image signal converted by said conversion means or the image signal stored in said storage means, wherein said transmission means selects the image signal converted by said conversion means or the image signal stored in said storage means in response to the identification signal.
Claim 3
Dependent Claim
33 words
An image transmission apparatus according to claim 1, wherein said storage means stores a compression-encoded image signal, and said conversion means operates without converting the compression-encoded signal into an original raw image signal.
Claim 4
Dependent Claim
107 words
An image transmission apparatus comprising: storage means for storing an image signal; conversion means for converting a scan line density of an image represented by the image signal stored in said storage means; reception means for receiving an identification signal from a reception side, the identification signal representing a type of machine on the reception side; and transmission means for selectively transmitting the image signal converted by said conversion means or the image signal stored in said storage means wherein said transmission means selects the image signal converted by said conversion means or the image signal stored in said storage means in response to the identification signal.
Claim 5
Dependent Claim
107 words
An image transmission apparatus comprising: storage means for storing an image signal; conversion means for converting a scan line density of an image represented by the image signal stored in said storage means; reception means for receiving an identification signal from a reception side, the identification signal representing a type of machine on the reception side; and transmission means for selectively transmitting the image signal converted by said conversion means or the image signal stored in said storage means wherein said transmission means selects the image signal converted by said conversion means or the image signal stored in said storage means in response to the identification signal.
Claim 6
Dependent Claim
32 words
An image transmission apparatus according to claim 3, wherein said storage means stores a compression-encoded image signal, and said conversion means converts the scan line density by converting the encoded image signal.
Claim 7
Dependent Claim
99 words
An image transmission apparatus comprising: storage means for storing an image signal; first conversion means for converting a number of dots in one line represented by the image signal in said storage means; second conversion means for converting a scan line density of the image signal in said storage means; reception means for receiving an identification signal from a reception side, the identification signal representing a type of machine on the reception side; and transmission means for transmitting the image signal stored in said storage means selectively using said first and second conversion means depending on the identification signal.
Claim 8
Dependent Claim
99 words
An image transmission apparatus comprising: storage means for storing an image signal; first conversion means for converting a number of dots in one line represented by the image signal in said storage means; second conversion means for converting a scan line density of the image signal in said storage means; reception means for receiving an identification signal from a reception side, the identification signal representing a type of machine on the reception side; and transmission means for transmitting the image signal stored in said storage means selectively using said first and second conversion means depending on the identification signal.
Claim 9
Dependent Claim
34 words
An image transmission apparatus according to claim 5, wherein said storage means stores a compression-encoded image signal, and said first conversion means operates without converting the compression-encoded signal into an original raw image signal.
Claim 10
Dependent Claim
33 words
An image transmission apparatus according to claim 5, wherein said storage means stores a compression-encoded image signal, and said second conversion means converts the scan line density by converting the compression-encoded image signal.
Claim 11
Dependent Claim
97 words
An image transmission apparatus comprising: generation means for generating line by line image signal representing an image; encoding means for compression-encoding the image signals to provide image codes; storage means for storing the provided image codes with specific codes, the specific codes representing line ends; addition means for adding dummy data to the image codes read out from said storage means in accordance with the specific codes read out from said storage means; and transmission means for transmitting the image codes and the specific codes both read out from said storage means with the added dummy data.
Claim 12
Dependent Claim
97 words
An image transmission apparatus comprising: generation means for generating line by line image signal representing an image; encoding means for compression-encoding the image signals to provide image codes; storage means for storing the provided image codes with specific codes, the specific codes representing line ends; addition means for adding dummy data to the image codes read out from said storage means in accordance with the specific codes read out from said storage means; and transmission means for transmitting the image codes and the specific codes both read out from said storage means with the added dummy data.
Claim 13
Dependent Claim
21 words
An image transmission apparatus according to claim 8, wherein said storage means stores image data corresponding to one or more lines.
Claim 14
Dependent Claim
27 words
An apparatus according to claim 23, further comprising pixel density converting means for converting the scan-line density of image signals represented by the compression encoded image signals.
Claim 15
Dependent Claim
54 words
An apparatus according to claim 10, wherein said storage means comprises a first storage arrangement and a second storage arrangement, said scan-line density converting means being arranged to convert the scan-line density of image signals stored in said first storage arrangement and supply the converted signals to said second storage arrangement for storage therein.
Claim 16
Dependent Claim
26 words
An apparatus according to claim 11, wherein said encode means is arranged to supply the image codes to both said first and said second storage arrangements.
Claim 17
Dependent Claim
23 words
An apparatus according to claim 11, wherein said addition means is coupled to said second storage arrangement to receive the image codes therefrom.
Claim 18
Dependent Claim
24 words
An apparatus according to claim 8, further comprising pixel density converting means for converting pixel density per scan-line of the compression encoded image signals.
Claim 19
Dependent Claim
14 words
An apparatus according to claim 14, wherein the compression encoding is Modified Huffman coding.
Claim 20
Dependent Claim
40 words
An apparatus according to claim 15, wherein said pixel density converting means comprise means for converting the stored Modified Huffman encoded image signals to run length encoded signals, and means for converting pixel density of the run length encoded signals.
Claim 21
Dependent Claim
24 words
An apparatus according to claim 16, further comprising an encoder for encoding the pixel density converted run-length encoded signals to Modified Huffman encoded signals.
Claim 22
Dependent Claim
58 words
An apparatus according to claim 17, wherein said storage means comprises a first storage arrangement and a second storage arrangement, said pixel density converting means and said encoder being arranged to convert pixel density of lines of image signals stored in said first storage arrangement and supply the converted signals to said second storage arrangement for storage therein.
Claim 23
Dependent Claim
78 words
An image transmission apparatus comprising: read-out means for reading an image and converting the image into an image signal; storage means for temporarily storing the image signal; means for encoding the image signal stored in said storing means, to produce an encoded signal; and means for transmitting the image signal or the encoded signal, wherein a form of storage of the image signal in said storage means differs depending on whether said encoding means is used or not.
Claim 24
Dependent Claim
78 words
An image transmission apparatus comprising: read-out means for reading an image and converting the image into an image signal; storage means for temporarily storing the image signal; means for encoding the image signal stored in said storing means, to produce an encoded signal; and means for transmitting the image signal or the encoded signal, wherein a form of storage of the image signal in said storage means differs depending on whether said encoding means is used or not.
Claim 25
Dependent Claim
23 words
An image transmission apparatus according to claim 19, wherein, in a case of using said encoding means, said storage means stores RL code.
Claim 26
Dependent Claim
48 words
An image transmission apparatus comprising: encoding means for two-dimensionally encoding an image signal; means for generating data regarding a sender and transmission time, the data being included in the image signal; and means for transmitting an image as a two-dimensional code and the data as a one-dimensional code.
Claim 27
Dependent Claim
48 words
An image transmission apparatus comprising: encoding means for two-dimensionally encoding an image signal; means for generating data regarding a sender and transmission time, the data being included in the image signal; and means for transmitting an image as a two-dimensional code and the data as a one-dimensional code.
Claim 28
Dependent Claim
24 words
An image transmission apparatus according to claim 21, wherein said two-dimensional code is an MR code, and said one-dimensional code is an MH code.
Claim 29
Dependent Claim
112 words
An image processing method comprising the steps of: obtaining an original image signal; compressing and encoding the original image signal to obtain a first code signal representing a run length of the original image signal; storing the first code signal in an image memory; discriminating a recording mode on a reception side, in response to information from the reception side; converting the first code signal read out of the image memory, according to the discriminated recording mode; encoding the converted first code signal into a second code signal having a form which is different from a form of the first code signal; and transmitting the second code signal to the reception side.
Claim 30
Dependent Claim
112 words
An image processing method comprising the steps of: obtaining an original image signal; compressing and encoding the original image signal to obtain a first code signal representing a run length of the original image signal; storing the first code signal in an image memory; discriminating a recording mode on a reception side, in response to information from the reception side; converting the first code signal read out of the image memory, according to the discriminated recording mode; encoding the converted first code signal into a second code signal having a form which is different from a form of the first code signal; and transmitting the second code signal to the reception side.
Claim 31
Dependent Claim
24 words
An image processing method according to claim 23, wherein, in said converting step, the run length is converted in accordance with the recording mode.
Claim 32
Dependent Claim
24 words
An image processing method according to claim 23, wherein the first code signal and the second code signal include a two-dimensional compression code signal.
Claim 33
Dependent Claim
30 words
An image processing method according to claim 25, wherein the first code signal includes a run length code signal and the second code signal includes a Modified READ code signal.
Claim 34
Dependent Claim
24 words
An image processing method according to claim 23, wherein the operation in said converting step is selectively inhibited in accordance with the recording mode.
Claim 35
Dependent Claim
20 words
An image processing method according to claim 23, wherein the recording mode includes a mode referring to a recording resolution.
Claim 36
Dependent Claim
114 words
A data transmission apparatus comprising: means for generating transmission data; timer means for generating time data; memory means for storing the transmission data and for storing the time data generated by said timer means, the time data representing a time at which the transmission data is stored in said memory means; transmission means for transmitting the transmission data to a reception side; and reproduction means for reproducing the transmission data a transmission side, wherein the time data stored in said memory means is reproduced at the transmission side, and wherein, when said transmission means transmits the transmission data, actual transmission time data generated by said timer means is transmitted together with the transmission data.
Claim 37
Dependent Claim
114 words
A data transmission apparatus comprising: means for generating transmission data; timer means for generating time data; memory means for storing the transmission data and for storing the time data generated by said timer means, the time data representing a time at which the transmission data is stored in said memory means; transmission means for transmitting the transmission data to a reception side; and reproduction means for reproducing the transmission data a transmission side, wherein the time data stored in said memory means is reproduced at the transmission side, and wherein, when said transmission means transmits the transmission data, actual transmission time data generated by said timer means is transmitted together with the transmission data.
Claim 38
Dependent Claim
26 words
A data transmission apparatus according to claim 29, in a case that the transmission data is reproduced, the time data in said memory means is reproduced.
Claim 39
Dependent Claim
16 words
A data transmission apparatus according to claim 29, wherein said memory means is a single memory.
Claim 40
Dependent Claim
23 words
A data transmission apparatus according to claim 29, wherein said transmission data generation means reads an original image and generates an image signal.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-03 | 1993-01-02 | 1993-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-03 | 1997-01-02 | 1997-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-03 | 2001-01-02 | 2001-07-04 | $7700.00 | Window Closed / Lapsed |