US4991004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film previewer which simultaneously displays a 110 and a 135 frame
Assignee: Fujifilm Holdings Corp
•
Filing: 1989-02-03
•
Granted: 1991-02-05
•
Expires: 2009-02-03
Abstract
Abstract Picture frames on a color photographic film are detected with a television camera, and the color images of the picture frames are displayed in a matrix arrangement on a color monitor. In order to display color images of picture frames at the same dimension on the color display irrespective of the picture frame size of the color photographic film, a specific area from which pixels are picked up is determined in accordance with the picture frame size, and pixel thinning is performed. Pixels for an image taken as a full size on the 135 type color photographic film are thinned by removing every second pixel in both the vertical and horizontal directions, and pixels for an image taken as a half size on the 135 type color photographic film are thinned by removing every second pixel in the vertical direction within the specific area, and interchanging the vertical and horizontal addresses to read the image data rotated by 90 degrees. Pixels for an image of a 110 type color photographic film all are picked from the specific area as the image data.
Inventors
- 👤 Ryoichi Hayashi
- 👤 Yoshiaki Sakamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:28
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/387; H04N1/393; H04N1/3935
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
204 words
A method of displaying images of a plurality of picture frames of a color photographic film on image display means, the images being picked up by image pickup means, the method comprising the steps of: picking up image data for a picture frame of a 135 type color photographic film on which images have been taken in a full size format by removing every second pixel in both the vertical and horizontal directions, picking up image data for a picture frame of a 110 type color photographic film on which images have been taken by picking up all the pixels within a specific area of said image pickup area, and picking up image data for a picture frame of a half size format on said 135 type color photographic film by removing every second pixel in the vertical direction, and switching the vertical and horizontal addresses to read said image data rotated by 90 degrees; writing said picked-up image data into an image memory; reading said image data from said image memory; supplying said read-out image data to said image display means; and displaying of the images of said plurality of picture frames in a matrix arrangement in accordance with said read-out image data.
Claim 2
Independent Claim
204 words
A method of displaying images of a plurality of picture frames of a color photographic film on image display means, the images being picked up by image pickup means, the method comprising the steps of: picking up image data for a picture frame of a 135 type color photographic film on which images have been taken in a full size format by removing every second pixel in both the vertical and horizontal directions, picking up image data for a picture frame of a 110 type color photographic film on which images have been taken by picking up all the pixels within a specific area of said image pickup area, and picking up image data for a picture frame of a half size format on said 135 type color photographic film by removing every second pixel in the vertical direction, and switching the vertical and horizontal addresses to read said image data rotated by 90 degrees; writing said picked-up image data into an image memory; reading said image data from said image memory; supplying said read-out image data to said image display means; and displaying of the images of said plurality of picture frames in a matrix arrangement in accordance with said read-out image data.
Claim 3
Dependent Claim
59 words
A method according to claim 1, wherein said removal of pixels in the vertical and horizontal directions for said picture frame of said 135 type color photographic film and said removal of pixels in the vertical direction for said picture frame of a half size format on said 135 type color photographic film are performed during said writing step.
Claim 4
Dependent Claim
48 words
A method according to claim 1, wherein said image data with pixels thinned for said 135 half size picture frame are written in a buffer memory, and said image data are read by interchanging the vertical and horizontal addresses and are writing the data in said image memory.
Claim 5
Independent Claim
238 words
An apparatus for displaying images of a plurality of color print frame of a color photographic film on image display means, and including image pickup means for picking up said image of a picture frame and an image memory for storing image data of pixels of said images of said plurality of picture frames, said apparatus further comprising: means for picking up selected image data, including means for picking up image data for a picture frame of a 135 type color photographic film on which images have been taken in a full size format by removing every second pixel in both the vertical and horizontal directions, means for picking up image data for a picture frame of a 110 type color photographic film on which images have been taken by picking up all the pixels within a specific area of said image pickup area, and means for picking up image data for a picture frame of a half size format on said 135 type color film by removing every second pixel in the vertical direction, and switching the vertical and horizontal addresses to read said image data rotated by 90 degrees; means for writing said picked-up image data into an image memory; means for reading out said image data from said image memory; means for processing said image data for simulation of said color print frames as said images; and means for displaying said images in matrix arrangement.
Claim 6
Independent Claim
238 words
An apparatus for displaying images of a plurality of color print frame of a color photographic film on image display means, and including image pickup means for picking up said image of a picture frame and an image memory for storing image data of pixels of said images of said plurality of picture frames, said apparatus further comprising: means for picking up selected image data, including means for picking up image data for a picture frame of a 135 type color photographic film on which images have been taken in a full size format by removing every second pixel in both the vertical and horizontal directions, means for picking up image data for a picture frame of a 110 type color photographic film on which images have been taken by picking up all the pixels within a specific area of said image pickup area, and means for picking up image data for a picture frame of a half size format on said 135 type color film by removing every second pixel in the vertical direction, and switching the vertical and horizontal addresses to read said image data rotated by 90 degrees; means for writing said picked-up image data into an image memory; means for reading out said image data from said image memory; means for processing said image data for simulation of said color print frames as said images; and means for displaying said images in matrix arrangement.
Claim 7
Dependent Claim
17 words
An apparatus according to claim 4, further comprising means for inputting the size of a picture frame.
Claim 8
Dependent Claim
46 words
An apparatus according to claim 4, wherein said image data with pixels thinned for said 135 half size picture frame are written in a buffer memory, and said image data are read by interchanging the vertical and horizontal addresses and are written in said image memory.
Claim 9
Dependent Claim
23 words
An apparatus according to claim 6, further comprising means for subjecting said image data read out of said image memory to chroma correction.
Claim 10
Dependent Claim
23 words
An apparatus according to claim 7, further comprising means for subjecting said image data read out of said image memory to gradation correction.
References Cited (Backward Citations)
US4279505A
Cited
EP0085351A2
Cited
EP0108158A1
Cited
US4814894A
Cited
US4692797A
Cited
US4743963A
Cited
GB2177567A
Cited
US4809305A
Cited
JPS62141530A
Cited
US4782390A
Cited
US4833544A
Cited
US4807156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-04 | 1994-08-06 | 1995-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-04 | 1998-08-06 | 1999-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-04 | 2002-08-06 | 2003-02-05 | $7700.00 | Window Closed / Lapsed |