公开(公告)号：DE3262277D1

公开(公告)日：1985-03-28

申请号：DE3262277

申请日：1982-03-25

Applicant: IBM

Inventor： ARTER NELSON KAY ,  AVRITT MICHAEL DAVID ,  DODT WILLIAM CARL ,  HERMAN MARION JAMES

IPC: B65H29/20 ,  G01N33/22 ,  G03B27/62 ,  G03G15/00 ,  G03G15/04 ,  G03B27/50

Abstract: The original carriage (12) of a document reproduction machine (10) is arranged for movement, from the home position shown, to the right for scanning a document on platen 24 and thereafter back to the home position. A roller system 34 engages a document on the carriage during its return to eject the document into tray 36. The roller system may engage to carriage at all times and be freely rotatable in an anticlockwise direction only, or it may be powered, either by a spring or electric motor, to rotate in a clockwise direction during carriage return.

公开(公告)号：AU1719276A

公开(公告)日：1978-03-02

申请号：AU1719276

申请日：1976-08-26

Applicant: IBM

Inventor： ARTER NELSON KAY ,  JACKSON HOWARD CARL

IPC: H04N5/7826 ,  G05D3/12 ,  G05D13/62 ,  G11B15/18 ,  G11B15/467 ,  H02P3/06 ,  G11B15/20

Abstract: An incremental belt transport device with adaptive gain control and a rotating head magnetic tape unit, comprising: a take-up reel; a motor functionally connected to rotate said reel; a supply of tape; rotary means in cooperation with a stretch of tape running between said supply and said take-up reel, following a transverse or lateral path of travel across the width of said stretch of tape; said tape having a plurality of data tracks distributed at intervals and having servo-control rates for at least certain tracks; transducer means capable of operating by reading said servo-control indices in order to determine the lack of alignment of said rotary means with its data tracks; means for generating an advance order or tape step; means for detecting the excess of stroke and the defect or shortness of stroke of the engine; means for comparing the excess and defect of stroke with a predetermined threshold value; and means for adjusting the motor gain to minimize motor oscillation. (Machine-translation by Google Translate, not legally binding)

公开(公告)号：DE2638800A1

公开(公告)日：1977-04-14

申请号：DE2638800

申请日：1976-08-27

Applicant: IBM

Inventor： ARTER NELSON KAY ,  JACKSON HOWARD CARL

IPC: H04N5/7826 ,  G05D3/12 ,  G05D13/62 ,  G11B15/18 ,  G11B15/467 ,  H02P3/06 ,  G11B27/36 ,  G11B15/46

Abstract: An incremental belt transport device with adaptive gain control and a rotating head magnetic tape unit, comprising: a take-up reel; a motor functionally connected to rotate said reel; a supply of tape; rotary means in cooperation with a stretch of tape running between said supply and said take-up reel, following a transverse or lateral path of travel across the width of said stretch of tape; said tape having a plurality of data tracks distributed at intervals and having servo-control rates for at least certain tracks; transducer means capable of operating by reading said servo-control indices in order to determine the lack of alignment of said rotary means with its data tracks; means for generating an advance order or tape step; means for detecting the excess of stroke and the defect or shortness of stroke of the engine; means for comparing the excess and defect of stroke with a predetermined threshold value; and means for adjusting the motor gain to minimize motor oscillation. (Machine-translation by Google Translate, not legally binding)

公开(公告)号：DE2530731A1

公开(公告)日：1976-01-29

申请号：DE2530731

申请日：1975-07-10

Applicant: IBM

Inventor： ARTER NELSON KAY ,  BROCK GEORGE WILLIAM ,  JACKSON HOWARD CARL ,  LEGGATE JAMES WARREN

IPC: H04N5/7826 ,  B65H23/032 ,  G05D13/62 ,  G11B15/087 ,  G11B15/18 ,  G11B15/467 ,  G11B15/54 ,  G11B15/60 ,  G11B15/61 ,  G11B27/13 ,  G11B5/55 ,  G11B15/52 ,  G11B27/36 ,  H04N5/78

Abstract: A track or stripe tape positioner for a helical scan or rotary head recorder uses digital techniques. The expected step size is preset into a counter. During the next phase, a calibration phase, the tape is stepped through a plurality of stripes whereat the preset value is adjusted to measured values. In the third phase, the average step size is maintained subject to certain averaged changes thus providing a high degree of noise rejection to ensure reliable incremental stepping of a record tape through the recorder.