US5889549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication apparatus having coding/decoding means responsive to a settable coefficient
Assignee: Canon Inc
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Filing: 1994-09-27
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Granted: 1999-03-30
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Expires: 2014-09-27
Abstract
Abstract Disclosed is a communication apparatus in which coding and/or decoding parameters for coding and/or decoding data can be performed in dialog fashion to make possible the optimum coding of transmitted data and the optimum reproduction of received data. The apparatus includes a coefficient adjusting unit for adjusting coding and/or decoding parameters, and a decode-signal changeover unit for selecting, as an input signal to be decoded, one of a reception signal that has been received through a line and a transmission signal that has been coded, wherein the parameters are adjusted based upon the coded transmission signal. The apparatus further includes an image synthesizing unit for simultaneously displaying an input signal from input means and a decoded signal.
Inventors
- 👤 Hitoshi Yasuda
- 👤 Makoto Chida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:53
CPC Classifications
H; H04; H04N; H04N19/00; H04N19/10; H04N19/134; H04N19/154; H04N19/60; H04N19/61; H04N19/80; H04N19/82; H04N7/00; H04N7/14; H04N7/141; H04N7/148; H04N7/24
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
116 words
A communication apparatus comprising: coding/decoding means for encoding original image data to be transmitted in accordance with a settable coefficient, and for decoding the encoded image data to provide decoded image data, said settable coefficient operative to adjust image quality; output means for outputting an original image represented by the original image data and a decoded image represented by the decoded image data in respectively different output forms; first setting means for manually setting a new settable coefficient, wherein said new settable coefficient directly affects image quality of the decoded image output by said output means by affecting encoding by said coding/decoding means; and second setting means for automatically setting the coefficient for encoding and decoding.
Claim 2
Dependent Claim
116 words
A communication apparatus comprising: coding/decoding means for encoding original image data to be transmitted in accordance with a settable coefficient, and for decoding the encoded image data to provide decoded image data, said settable coefficient operative to adjust image quality; output means for outputting an original image represented by the original image data and a decoded image represented by the decoded image data in respectively different output forms; first setting means for manually setting a new settable coefficient, wherein said new settable coefficient directly affects image quality of the decoded image output by said output means by affecting encoding by said coding/decoding means; and second setting means for automatically setting the coefficient for encoding and decoding.
Claim 3
Dependent Claim
14 words
A communication apparatus according to claim 1, wherein said coefficient is a quantizing coefficient.
Claim 4
Dependent Claim
24 words
A communication apparatus according to claim 1, wherein said coefficient is a size of filter used in a filtering process or a filtering coefficient.
Claim 5
Dependent Claim
15 words
A communication apparatus according to claim 1, wherein said original image includes a moving image.
Claim 6
Dependent Claim
16 words
A communication apparatus according to claim 1, further comprising audio communicating means for communicating audio data.
Claim 7
Independent Claim
111 words
A method for adjusting image quality of a communications apparatus, comprising the steps of: encoding original image data to be transmitted in accordance with a settable coefficient, and decoding the encoded image data to provide decoded image data, said settable coefficient operative to adjust image quality; outputting an original image represented by the original image data and a decoded image represented by the decoded image data in respectively different output forms; manually setting a new settable coefficient, wherein said new settable coefficient directly affects image quality of the decoded image output in said output step by affecting encoding by said coding/decoding step, and automatically setting the coefficient for encoding and decoding.
Claim 8
Independent Claim
111 words
A method for adjusting image quality of a communications apparatus, comprising the steps of: encoding original image data to be transmitted in accordance with a settable coefficient, and decoding the encoded image data to provide decoded image data, said settable coefficient operative to adjust image quality; outputting an original image represented by the original image data and a decoded image represented by the decoded image data in respectively different output forms; manually setting a new settable coefficient, wherein said new settable coefficient directly affects image quality of the decoded image output in said output step by affecting encoding by said coding/decoding step, and automatically setting the coefficient for encoding and decoding.
Claim 9
Dependent Claim
13 words
A method according to claim 6, wherein said coefficient is a quantizing coefficient.
Claim 10
Dependent Claim
23 words
A method according to claim 6, wherein said coefficient is a size of filter used in a filtering process or a filtering coefficient.
Claim 11
Dependent Claim
14 words
A method according to claim 6, wherein said original image includes a moving image.
Claim 12
Dependent Claim
14 words
A method according to claim 6, further comprising a step of communicating audio data.
Claim 13
Dependent Claim
147 words
A communication apparatus comprising: input means for inputting first image data; receiving means for receiving second image data from an external apparatus; coding/decoding means for encoding the first image data to be transmitted in accordance with a settable coefficient, and for decoding the encoded first image data to provide decoded first image data, said settable coefficient operative to adjust image quality; output means for outputting a second image represented by the second image data and a first image represented by the decoded first image data; and manually setting means for setting a new settable coefficient, wherein said new settable coefficient directly affects image quality of the first image output to the monitor by affecting coding by said coding/decoding means, said setting means being operational while said receiving means is receiving the second image data, and automatic setting means for automatically setting the coefficient for encoding and decoding.
Claim 14
Dependent Claim
147 words
A communication apparatus comprising: input means for inputting first image data; receiving means for receiving second image data from an external apparatus; coding/decoding means for encoding the first image data to be transmitted in accordance with a settable coefficient, and for decoding the encoded first image data to provide decoded first image data, said settable coefficient operative to adjust image quality; output means for outputting a second image represented by the second image data and a first image represented by the decoded first image data; and manually setting means for setting a new settable coefficient, wherein said new settable coefficient directly affects image quality of the first image output to the monitor by affecting coding by said coding/decoding means, said setting means being operational while said receiving means is receiving the second image data, and automatic setting means for automatically setting the coefficient for encoding and decoding.
Claim 15
Dependent Claim
91 words
A communication apparatus comprising: input means for inputting original image data; coding/decoding means for encoding the original image data to be transmitted in accordance with a settable coefficient, and for decoding the encoded image data to provide decoded moving image data, said settable coefficient operative to adjust image quality; output means for outputting an original image represented by the original image data and a decoded image represented by the decoded image data in respectively different output forms; and setting means for manually and automatically setting the coefficient for encoding and decoding.
Claim 16
Dependent Claim
91 words
A communication apparatus comprising: input means for inputting original image data; coding/decoding means for encoding the original image data to be transmitted in accordance with a settable coefficient, and for decoding the encoded image data to provide decoded moving image data, said settable coefficient operative to adjust image quality; output means for outputting an original image represented by the original image data and a decoded image represented by the decoded image data in respectively different output forms; and setting means for manually and automatically setting the coefficient for encoding and decoding.
Claim 17
Dependent Claim
14 words
A communication apparatus according to claim 12, wherein said coefficient is a quantizing coefficient.
Claim 18
Dependent Claim
24 words
A communication apparatus according to claim 12, wherein said coefficient is a size of filter used in a filtering process or a filtering coefficient.
Claim 19
Dependent Claim
15 words
A communication apparatus according to claim 12, wherein said original image includes a moving image.
Claim 20
Dependent Claim
16 words
A communication apparatus according to claim 12, further comprising audio communicating means for communicating audio data.
Claim 21
Independent Claim
88 words
A method for adjusting image quality of a communication apparatus, comprising the steps of: inputting original image data; encoding the original image data to be transmitted in accordance with a settable coefficient, and decoding the encoded image data to provide decoded moving image data, said settable coefficient operative to adjust image quality; outputting an original image represented by the original image data and a decoded image represented by the decoded image data in respectively different output forms; and manually and automatically setting the coefficient for encoding and decoding.
Claim 22
Independent Claim
88 words
A method for adjusting image quality of a communication apparatus, comprising the steps of: inputting original image data; encoding the original image data to be transmitted in accordance with a settable coefficient, and decoding the encoded image data to provide decoded moving image data, said settable coefficient operative to adjust image quality; outputting an original image represented by the original image data and a decoded image represented by the decoded image data in respectively different output forms; and manually and automatically setting the coefficient for encoding and decoding.
Claim 23
Dependent Claim
13 words
A method according to claim 17, wherein said coefficient is a quantizing coefficient.
Claim 24
Dependent Claim
23 words
A method according to claim 17, wherein said coefficient is a size of filter used in a filtering process or a filtering coefficient.
Claim 25
Dependent Claim
14 words
A method according to claim 17, wherein said original image includes a moving image.
Claim 26
Dependent Claim
14 words
A method according to claim 17, further comprising a step of communicating audio data.
Claim 27
Dependent Claim
142 words
A communication apparatus for communicating with a remote terminal, said communication apparatus comprising: encoding means for encoding moving image information to provide encoded image information to be transmitted to the remote terminal and for decoding received moving image information received from the remote terminal; decoding means for decoding the encoded moving image data provided by said encoding means to provide decoded moving image information and for outputting the decoded moving image information provided by said decoding means to a display; means for generating encoding parameters for said encoding means; and means for adjusting said encoding parameters so as to change a quality of the encoded moving image information while the decoded moving information is being output to the display, wherein said adjustment means is operable to adjust said encoding parameters during transmission of the encoded moving image information to the remote terminal.
Claim 28
Dependent Claim
142 words
A communication apparatus for communicating with a remote terminal, said communication apparatus comprising: encoding means for encoding moving image information to provide encoded image information to be transmitted to the remote terminal and for decoding received moving image information received from the remote terminal; decoding means for decoding the encoded moving image data provided by said encoding means to provide decoded moving image information and for outputting the decoded moving image information provided by said decoding means to a display; means for generating encoding parameters for said encoding means; and means for adjusting said encoding parameters so as to change a quality of the encoded moving image information while the decoded moving information is being output to the display, wherein said adjustment means is operable to adjust said encoding parameters during transmission of the encoded moving image information to the remote terminal.
Claim 29
Independent Claim
139 words
A method operative in communication apparatus for communicating with a remote terminal, said method comprising the steps of: encoding moving image information to provide encoded image information to be transmitted to the remote terminal, the communication apparatus being operative to decode received moving image information received from the remote terminal; decoding the encoded moving image data provided at said encoding step to provide decoded moving image information; outputting the decoded moving image information provided at said decoding step to a display; generating encoding parameters for said encoding step; and adjusting said encoding parameters so as to change a quality of the encoded moving image information while the decoded moving information is being output to the display, wherein said adjustment step is operable to adjust said encoding parameters during transmission of the encoded moving image information to the remote terminal.
Claim 30
Independent Claim
139 words
A method operative in communication apparatus for communicating with a remote terminal, said method comprising the steps of: encoding moving image information to provide encoded image information to be transmitted to the remote terminal, the communication apparatus being operative to decode received moving image information received from the remote terminal; decoding the encoded moving image data provided at said encoding step to provide decoded moving image information; outputting the decoded moving image information provided at said decoding step to a display; generating encoding parameters for said encoding step; and adjusting said encoding parameters so as to change a quality of the encoded moving image information while the decoded moving information is being output to the display, wherein said adjustment step is operable to adjust said encoding parameters during transmission of the encoded moving image information to the remote terminal.
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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) | 2002-03-29 | 2002-09-28 | 2003-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-29 | 2006-09-28 | 2007-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-29 | 2010-09-28 | 2011-03-30 | $7700.00 | Window Closed / Lapsed |