FR2412996A1 - Unite de telegraphie fac-simile - Google Patents
Unite de telegraphie fac-simileInfo
- Publication number
- FR2412996A1 FR2412996A1 FR7836217A FR7836217A FR2412996A1 FR 2412996 A1 FR2412996 A1 FR 2412996A1 FR 7836217 A FR7836217 A FR 7836217A FR 7836217 A FR7836217 A FR 7836217A FR 2412996 A1 FR2412996 A1 FR 2412996A1
- Authority
- FR
- France
- Prior art keywords
- unit
- motor
- drive
- pulse
- facsimile telegraphy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/047—Detection, control or error compensation of scanning velocity or position
- H04N1/053—Detection, control or error compensation of scanning velocity or position in main scanning direction, e.g. synchronisation of line start or picture elements in a line
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/04—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors by means of a separate brake
- H02P29/045—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors by means of a separate brake whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
- H04N2201/02406—Arrangements for positioning elements within a head
- H04N2201/02439—Positioning method
- H04N2201/02443—Positioning method using adhesive
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04701—Detection of scanning velocity or position
- H04N2201/0471—Detection of scanning velocity or position using dedicated detectors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04701—Detection of scanning velocity or position
- H04N2201/04715—Detection of scanning velocity or position by detecting marks or the like, e.g. slits
- H04N2201/04724—Detection of scanning velocity or position by detecting marks or the like, e.g. slits on a separate encoder wheel
- H04N2201/04725—Detection of scanning velocity or position by detecting marks or the like, e.g. slits on a separate encoder wheel connected to the sub-scanning drive means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04701—Detection of scanning velocity or position
- H04N2201/04734—Detecting at frequent intervals, e.g. once per line for sub-scan control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04753—Control or error compensation of scanning position or velocity
- H04N2201/04756—Control or error compensation of scanning position or velocity by controlling the position or movement of the sheet, the sheet support or the photoconductive surface
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04753—Control or error compensation of scanning position or velocity
- H04N2201/04794—Varying the control or compensation during the scan, e.g. using continuous feedback or from line to line
- H04N2201/04798—Varying the main-scan control during the main-scan, e.g. facet tracking
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Facsimile Scanning Arrangements (AREA)
- Control Of Direct Current Motors (AREA)
- Facsimiles In General (AREA)
- Control Of Stepping Motors (AREA)
- Facsimile Transmission Control (AREA)
Abstract
L'INVENTION CONCERNE UNE UNITE DE TELEGRAPHIE FAC-SIMILE ET LA COMMANDE DE L'ENTRAINEMENT DE SON DISPOSITIF DE BALAYAGE, LE MONTAGE DE COMMANDE COMPRENANT UN MOTEUR A COURANT CONTINU 10 ET UNE SOURCE DE TENSION D'ENTRAINEMENT PULSEE APPLIQUANT DES IMPULSIONS D'ENTRAINEMENT A CE MOTEUR PENDANT LES TEMPS DE TRAVAIL DE LADITE TENSION. UN MOYEN DE FREINAGE DYNAMIQUE 28 APPLIQUE AU MOTEUR DU COURANT DE FREINAGE PULSE PENDANT LES INTERVALLES SEPARANT LES IMPULSIONS D'ENTRAINEMENT. APPLICATION AUX DISPOSITIFS DE BALAYAGE TANT A TAMBOUR QU'A TABLE PLATE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/863,891 US4149193A (en) | 1977-12-23 | 1977-12-23 | Facsimile drive with dynamic brake |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2412996A1 true FR2412996A1 (fr) | 1979-07-20 |
Family
ID=25342035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7836217A Withdrawn FR2412996A1 (fr) | 1977-12-23 | 1978-12-22 | Unite de telegraphie fac-simile |
Country Status (7)
Country | Link |
---|---|
US (1) | US4149193A (fr) |
JP (1) | JPS5497312A (fr) |
DE (1) | DE2855831A1 (fr) |
FR (1) | FR2412996A1 (fr) |
GB (1) | GB2011199B (fr) |
IT (1) | IT1101088B (fr) |
NL (1) | NL7812521A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56148185A (en) * | 1980-04-15 | 1981-11-17 | Olympus Optical Co Ltd | Motor controller |
GB2088572A (en) * | 1980-12-02 | 1982-06-09 | Gestetner Mfg Ltd | Variable speed scan drive |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3335351A (en) * | 1965-03-05 | 1967-08-08 | Gen Electric | Dc motor control circuit |
FR2328335A1 (fr) * | 1975-10-14 | 1977-05-13 | Exxon Research Engineering Co | Procede et dispositif de telecopie par belinographie |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2629844A (en) * | 1949-05-20 | 1953-02-24 | Gorton George Machine Co | Control system for rotary duplicating machines |
US3218529A (en) * | 1962-10-09 | 1965-11-16 | Automatic Elect Lab | Plural motor tape deck transport including tensioning, dynamic braking and reversing |
-
1977
- 1977-12-23 US US05/863,891 patent/US4149193A/en not_active Expired - Lifetime
-
1978
- 1978-12-22 NL NL7812521A patent/NL7812521A/xx not_active Application Discontinuation
- 1978-12-22 IT IT31300/78A patent/IT1101088B/it active
- 1978-12-22 FR FR7836217A patent/FR2412996A1/fr not_active Withdrawn
- 1978-12-22 JP JP16092978A patent/JPS5497312A/ja active Pending
- 1978-12-22 GB GB7849773A patent/GB2011199B/en not_active Expired
- 1978-12-22 DE DE19782855831 patent/DE2855831A1/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3335351A (en) * | 1965-03-05 | 1967-08-08 | Gen Electric | Dc motor control circuit |
FR2328335A1 (fr) * | 1975-10-14 | 1977-05-13 | Exxon Research Engineering Co | Procede et dispositif de telecopie par belinographie |
Non-Patent Citations (1)
Title |
---|
IBM TECHNICAL DISCLOSURE BULLETIN, vol. 18, no. 8, janvier 1976, pages 2580-2581, New York, US * |
Also Published As
Publication number | Publication date |
---|---|
GB2011199A (en) | 1979-07-04 |
DE2855831A1 (de) | 1979-06-28 |
JPS5497312A (en) | 1979-08-01 |
NL7812521A (nl) | 1979-06-26 |
US4149193A (en) | 1979-04-10 |
GB2011199B (en) | 1982-06-16 |
IT1101088B (it) | 1985-09-28 |
IT7831300A0 (it) | 1978-12-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |