Patent US5357281A successfully refreshed from Google Patents.
US5357281A
Expired / Lapsed
US
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Image processing apparatus and terminal apparatus
Assignee: Canon Inc
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Filing: 1992-11-03
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Granted: 1994-10-18
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Expires: 2012-11-03
Abstract
Abstract The present invention is directed to a terminal apparatus in which the in-frame compression factor of an image obtained by a camera is increased to restrict frame thinning when the camera is moved. A control circuit 60 performs control of a movable table 12. When a TV camera 10 is moved, the quantization table used in a quantization circuit 26 is changed over, whereby a higher compression factor of the coding conducted by a DCT circuit 24 and the quantization circuit 26 is achieved. Thus, a predetermined compression factor can be achieved without performing frame thinning.
Inventors
- 👤 Keiichi Ikeda
- 👤 Hiroyuki Horii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:37
CPC Classifications
H; H04; H04N; H04N19/00; H04N19/10; H04N19/169; H04N19/17; H04N19/176; H04N19/102; H04N19/117; H04N19/124; H04N19/126; H04N19/134; H04N19/136; H04N19/137; H04N19/60; H04N19/61; H04N19/80; H04N19/82
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
61 words
An image processing apparatus comprising: conversion means for converting an objective image into an image signal; smoothing means for smoothing the image signal; coding means for coding the image signal which has been smoothed by said smoothing means; and control means for controlling said smooth means to smooth the image signal in accordance with a converting state of said conversion means.
Claim 2
Dependent Claim
61 words
An image processing apparatus comprising: conversion means for converting an objective image into an image signal; smoothing means for smoothing the image signal; coding means for coding the image signal which has been smoothed by said smoothing means; and control means for controlling said smooth means to smooth the image signal in accordance with a converting state of said conversion means.
Claim 3
Dependent Claim
23 words
The image processing apparatus according to claim 1, wherein said converting state comprises a moving or a non-moving state of said conversion means.
Claim 4
Dependent Claim
21 words
The image processing apparatus according to claim 1, wherein said conversion means converts the objective image into a moving image signal.
Claim 5
Dependent Claim
35 words
The image processing apparatus according to claim 1, further comprising means for orthogonally transforming the image signal, and quantization means for quantizing the image signal which has been orthogonally transformed by said orthogonal transform means.
Claim 6
Dependent Claim
30 words
The image processing apparatus according to claim 4, wherein said control means further controls quantization characteristics of said quantization means in accordance with the converting state of said conversion means.
Claim 7
Independent Claim
49 words
An apparatus comprising: image pick-up means for outputting an image signal based on an object image; and compression means for in-frame or interframe compression coding an image signal output by said image pick-up means, a compression ratio of said compression means increasing when said image pick-up means is moved.
Claim 8
Independent Claim
49 words
An apparatus comprising: image pick-up means for outputting an image signal based on an object image; and compression means for in-frame or interframe compression coding an image signal output by said image pick-up means, a compression ratio of said compression means increasing when said image pick-up means is moved.
Claim 9
Dependent Claim
23 words
The apparatus according to claim 6, wherein said compression means gives the in-frame compression a priority when said image pick-up means is moved.
Claim 10
Dependent Claim
29 words
The apparatus according to claim 6, wherein said compression means performs compression coding using changed-over quantization characteristics for quantizing the image signal when said image pick-up means is moved.
Claim 11
Dependent Claim
44 words
The apparatus according to claim 6, wherein said compression means thins out the image signal of particular frames in the image signal to be transmitted when the amount of coded data obtained from the image signal input by said video input means is large.
Claim 12
Dependent Claim
36 words
The apparatus according to claim 6, wherein said compression means includes means for orthogonally transforming the image signal, and quantization means for quantizing the image signal which has been orthogonally transformed by said orthogonal transform means.
Claim 13
Dependent Claim
15 words
The apparatus according to claim 6, further comprising audio input means for inputting audio data.
Claim 14
Dependent Claim
16 words
The apparatus according to claim 11, further comprising audio input means for coding the audio data.
Claim 15
Dependent Claim
36 words
The apparatus according to claim 12, further comprising transmission means for transmitting the image signal which has been compressed by said compression means and the audio data which as been coded by said audio coding means.
Claim 16
Independent Claim
107 words
An apparatus comprising: image pick-up means for inputting a moving image; image coding means for coding an image signal from said image pick-up means; audio input means for inputting an audio; audio coding means for coding an audio signal input by said audio input means; output means for comprising a first coded data obtained by said image coding means and a second coded data obtained by said audio coding means and outputting the composite data; and control means for controlling a ratio of the first coded data and the second coded data in accordance with a change in an image pick-up range of said image pick-up means.
Claim 17
Independent Claim
107 words
An apparatus comprising: image pick-up means for inputting a moving image; image coding means for coding an image signal from said image pick-up means; audio input means for inputting an audio; audio coding means for coding an audio signal input by said audio input means; output means for comprising a first coded data obtained by said image coding means and a second coded data obtained by said audio coding means and outputting the composite data; and control means for controlling a ratio of the first coded data and the second coded data in accordance with a change in an image pick-up range of said image pick-up means.
Claim 18
Dependent Claim
28 words
The apparatus according to claim 14, wherein said control means increases the ratio of the first coded data in accordance with the change in the image pick-up range.
Claim 19
Dependent Claim
37 words
The apparatus according to claim 14, wherein said image coding means includes means for orthogonally transforming the image signal, and quantization means for quantizing the image signal which has been orthogonally transformed by said orthogonal transform means.
Claim 20
Dependent Claim
21 words
The apparatus according to claim 14, wherein said output means comprises means for outputting the composite data to a communication line.
Claim 21
Dependent Claim
20 words
The apparatus according to claim 14, further comprising means for changing the image pick-up range of said image pick-up means.
Claim 22
Dependent Claim
20 words
The apparatus according to claim 18, wherein said changing means pans said image pick-up means over the image pick-up range.
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) | 1997-10-17 | 1998-04-18 | 1998-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-17 | 2002-04-18 | 2002-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-17 | 2006-04-18 | 2006-10-18 | $7700.00 | Window Closed / Lapsed |