Patent US5877805A successfully refreshed from Google Patents.
US5877805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image reading during movement of an imaging device
Assignee: Fujifilm Corp
•
Filing: 1997-10-15
•
Granted: 1999-03-02
•
Expires: 2017-10-15
Abstract
Abstract Image information for one screen is read while moving an image taking device so that a sampling position is shifted to make a round and to return the original position in n frames. The sampling position is shifted after stored signal charges of each of the n frames are transmitted to a transmission section and signal charges stored in a photoelectric conversion section are discharged at latest by the end of sampling position shift, thereby discharging outside signal charges stored during sampling position shift.
Inventors
- 👤 Azuchi Endo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:32
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/19; H04N1/195; H04N1/19505; H04N1/19515; H04N1/19521; H04N1/19568; H04N1/40; H04N25/00; H04N25/48
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
146 words
An image reading method comprising the steps of: reading image information for one screen while moving an image taking device so that a sampling position is shifted to traverse all frames and to return the original position in n frames, each frame including a plurality of fields; transmitting stored signal charges of each of the plurality of fields to a transmission section; shifting the sampling position to another frame after the stored signal charges of each field of the n frame are transmitted to the transmission section; initiating discharging of signal charges stored in a photoelectric conversion section, independent of whether the sampling position has been shifted to another frame; and completing the discharging of the signal charges at latest by the end of the shifting of the sampling position, thereby discharging outside signal charges stored during sampling position shift and matching sensitivities of all fields.
Claim 2
Dependent Claim
146 words
An image reading method comprising the steps of: reading image information for one screen while moving an image taking device so that a sampling position is shifted to traverse all frames and to return the original position in n frames, each frame including a plurality of fields; transmitting stored signal charges of each of the plurality of fields to a transmission section; shifting the sampling position to another frame after the stored signal charges of each field of the n frame are transmitted to the transmission section; initiating discharging of signal charges stored in a photoelectric conversion section, independent of whether the sampling position has been shifted to another frame; and completing the discharging of the signal charges at latest by the end of the shifting of the sampling position, thereby discharging outside signal charges stored during sampling position shift and matching sensitivities of all fields.
Claim 3
Dependent Claim
47 words
The method as defined in claim 1, further comprising forming each of the frames by first and second fields respectively for reading out charges on even lines and odd lines, and signal charges are discharged after charges stored in each field are transmitted to the transmission section.
Claim 4
Dependent Claim
24 words
The method as defined in claim 1, further comprising varying a length of a period the discharging in accordance with speed of the shifting.
Claim 5
Dependent Claim
22 words
The method as defined in claim 1, wherein discharging of signal charges is carried out a plurality of times for each frame.
Claim 6
Dependent Claim
21 words
The method as defined in claim 1, wherein discharging of signal charges is carried out for each field of each frame.
Claim 7
Dependent Claim
21 words
The method as defined in claim 1, wherein discharging of signal charges is initiated simultaneously for all fields of a frame.
Claim 8
Independent Claim
163 words
An apparatus comprising: a detector reading image information for one screen while moving an opening for the detector so that a sampling position is shifted to traverse all frames and to return the original position in n frames, each frame including a plurality of fields; means for transmitting stored signal charges of each of the plurality of fields to a transmission section; means for shifting the sampling position to another frame after the stored signal charges of each field of the n frame are transmitted to the transmission section; and means for initiating discharging of signal charges field independent of whether that field has been shifted by said stored in a photoelectric conversion section, independent of whether the sampling Position has been shifted to another frame, and for completing the discharging of the signal charges at latest by the end of the shifting of the sampling position, thereby discharging outside signal charges stored during sampling position shift and matching sensitivities of all fields.
Claim 9
Independent Claim
163 words
An apparatus comprising: a detector reading image information for one screen while moving an opening for the detector so that a sampling position is shifted to traverse all frames and to return the original position in n frames, each frame including a plurality of fields; means for transmitting stored signal charges of each of the plurality of fields to a transmission section; means for shifting the sampling position to another frame after the stored signal charges of each field of the n frame are transmitted to the transmission section; and means for initiating discharging of signal charges field independent of whether that field has been shifted by said stored in a photoelectric conversion section, independent of whether the sampling Position has been shifted to another frame, and for completing the discharging of the signal charges at latest by the end of the shifting of the sampling position, thereby discharging outside signal charges stored during sampling position shift and matching sensitivities of all fields.
Claim 10
Dependent Claim
49 words
The apparatus as defined in claim 7, further comprising means for forming each of the frames by first and second fields respectively for reading out charges on even lines and odd lines, and signal charges are discharged after charges stored in each field are transmitted to the transmission section.
Claim 11
Dependent Claim
26 words
The apparatus as defined in claim 7, further comprising means for varying a length of a period the discharging in accordance with speed of the shifting.
Claim 12
Dependent Claim
22 words
The apparatus as defined in claim 7, wherein discharging of signal charges is carried out a plurality of times for each frame.
Claim 13
Dependent Claim
21 words
The apparatus as defined in claim 7, wherein discharging of signal charges is carried out for each field of each frame.
Claim 14
Dependent Claim
21 words
The apparatus as defined in claim 7, wherein discharging of signal charges is initiated simultaneously for all fields of a frame.
References Cited (Backward Citations)
JPS53101939A
Cited
US4535363A
Cited
US4633317A
Cited
US4985775A
Cited
JPS64863A
Cited
JPH01221065A
Cited
US5025319A
Cited
US5075775A
Cited
US5402171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-03-01 | 2002-08-31 | 2003-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-01 | 2006-08-31 | 2007-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-01 | 2010-08-31 | 2011-03-02 | $7700.00 | Window Closed / Lapsed |