US5134487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Using common circuitry for different signals
Assignee: Canon Inc
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Filing: 1990-11-05
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Granted: 1992-07-28
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Expires: 2010-11-05
Abstract
Abstract Image processing apparatus using common circuitry for different signals includes conversion circuitry for converting an input image signal into another signal form. First control circuitry is provided for giving first control information to the conversion circuitry to cause the conversion circuitry to convert the input image signal into, e.g., a compressed signal. Second control circuitry is provided for giving second control information to the conversion circuitry for causing the conversion circuitry to convert the input image signal into a signal adapted to be stored by a medium. Preferably, a D/A converter is used in common during photographing operations and during reproducing operations. The common circuitry avoids the use of separate circuits for conversion into different signal forms.
Inventors
- 👤 Tomishige Taguchi
- 👤 Makoto Kondo
- 👤 Toshihiko Mimura
- 👤 Eiji Ohara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:08
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/21; H04N1/2104; H04N1/2112; H04N1/2129; H04N1/2137; H04N1/46; H04N1/64; H04N1/646; H04N23/00; H04N23/80; H04N23/84; H04N25/00; H04N25/10; H04N25/11; H04N25/13; H04N25/134; H04N25/135; H04N25/136; H04N2101/00; Y; Y10; Y10S; Y10S358/00; Y10S358/906
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
109 words
An image processing apparatus comprising: (a) means for converting an input image signal into another signal form; (b) first means for giving first control information for causing said conversion means to convert said input image signal into a compressed signal, said first control information corresponding to a variable compression ratio; and (c) second means for giving second control information for causing said conversion means to convert said input image signal into a signal adapted to be stored by a medium, said conversion means operating at a first conversion speed in response to said first control information and at a second conversion speed in response to said second control information.
Claim 2
Dependent Claim
109 words
An image processing apparatus comprising: (a) means for converting an input image signal into another signal form; (b) first means for giving first control information for causing said conversion means to convert said input image signal into a compressed signal, said first control information corresponding to a variable compression ratio; and (c) second means for giving second control information for causing said conversion means to convert said input image signal into a signal adapted to be stored by a medium, said conversion means operating at a first conversion speed in response to said first control information and at a second conversion speed in response to said second control information.
Claim 3
Dependent Claim
22 words
An apparatus according to claim 1, wherein said input image signal comprises a dot-sequential color image signal of red, green and blue.
Claim 4
Dependent Claim
15 words
An apparatus according to claim 1, wherein the compression process includes an orthogonal conversion process.
Claim 5
Dependent Claim
24 words
An apparatus according to claim 1, further comprising means for storing the image signal, compressed by said conversion means, in a semiconductor memory medium.
Claim 6
Dependent Claim
31 words
An apparatus according to claim 1, further comprising means for storing the signal, converted so as to be adapted for storage in the medium by said conversion means, in said medium.
Claim 7
Dependent Claim
14 words
An apparatus according to claim 1, further comprising means for generating said image signal.
Claim 8
Dependent Claim
24 words
An apparatus according to claim 6, wherein said generating means comprises an image pickup device for converting an object image into an image signal.
Claim 9
Dependent Claim
82 words
An image processing apparatus comprising: (a) memory means capable of storing image data of a required amount; (b) first read-out means for displaying the image data stored in said memory means as a visible image on a monitor; (c) second read-out means for reading the image data stored in said memory means according to the transfer rate of a transmission channel; and (d) means for converting, in common, the data read by said first read-out means and by said second read-out means.
Claim 10
Dependent Claim
82 words
An image processing apparatus comprising: (a) memory means capable of storing image data of a required amount; (b) first read-out means for displaying the image data stored in said memory means as a visible image on a monitor; (c) second read-out means for reading the image data stored in said memory means according to the transfer rate of a transmission channel; and (d) means for converting, in common, the data read by said first read-out means and by said second read-out means.
Claim 11
Dependent Claim
14 words
An apparatus according to claim 8, wherein said conversion means comprises D/A conversion means.
Claim 12
Dependent Claim
19 words
An apparatus according to claim 8, wherein said memory means is capable of storing image data of a frame.
Claim 13
Dependent Claim
39 words
An apparatus according to claim 8, wherein said first read-out means is adapted to read the image data, stored in said memory means, with a rate synchronized with a standard television signal, in the form of a visible image.
Claim 14
Dependent Claim
55 words
An image processing apparatus comprising: (a) plural A/D conversion means for parallel A/D conversion of an image signal of primary or complementary colors; and (b) means for assigning at least two of said plural A/D conversion means to a brightness signal, except during the processing of the image signal of said primary or complementary colors.
Claim 15
Dependent Claim
55 words
An image processing apparatus comprising: (a) plural A/D conversion means for parallel A/D conversion of an image signal of primary or complementary colors; and (b) means for assigning at least two of said plural A/D conversion means to a brightness signal, except during the processing of the image signal of said primary or complementary colors.
Claim 16
Dependent Claim
20 words
An apparatus according to claim 12, further comprising plural sampling means for sampling said brightness signal at mutually different timings.
Claim 17
Dependent Claim
16 words
An apparatus according to claim 12, wherein said A/D conversion means are provided in three units.
Claim 18
Dependent Claim
19 words
An apparatus according to claim 14, wherein said image signal of primary colors comprises red, green and blue signals.
Claim 19
Dependent Claim
32 words
An apparatus according to claim 12, further comprising: (c) first supply means for supplying said image signal of primary or complementary colors; and (d) second supply means for supplying said brightness signal.
Claim 20
Dependent Claim
27 words
An apparatus according to claim 16, wherein said first supply means comprises means for converting an object image into the image signal of primary or complementary colors.
Claim 21
Dependent Claim
22 words
An apparatus according to claim 16, wherein said second supply means comprises means for reproducing the brightness signal from a recording medium.
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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) | 1995-07-28 | 1996-01-27 | 1996-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-28 | 2000-01-27 | 2000-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-28 | 2004-01-27 | 2004-07-28 | $7700.00 | Window Closed / Lapsed |