公开(公告)号：EP1121681A1

公开(公告)日：2001-08-08

申请号：EP99934127.4

申请日：1999-07-15

申请人： SIENNA IMAGING, INC.

发明人： SHAKLEE, Kerry, L. ,  O'BRIEN, Daniel, C. ,  LENIGER, Kurt, A. ,  BRACKETT, Gary, L. ,  DENNY, Richard, W.

IPC分类号： G09G1/04 ,  H01J29/70 ,  H01J29/72

CPC分类号： G06K15/1233

摘要： Disclosed is a photographic printer (100) with bi-directional sweeping of a monochrome CRT (116) to expose a photosensitive medium. Image data from a host system is received by the printer and stored in a data drive system (112). The data drive system (112) converts the data into a series of rows of dot row data to produce the appropriate image desired. Linear deflection amplifiers sweep the CRT's electron beam across the face of the CRT (116) to expose the medium utilizing the dot row data. The present invention sweeps and writes data bi-directionally, eliminating the retrace period associated with sweeping and writing in one direction, and without any hold periods once printing starts. The data in every other dot row is processed in reverse order so that the dot row data utilized in the reverse writing sweep will be exposed onto the medium in proper relationship to the rows written above and below it.

公开(公告)号：EP1104581A1

公开(公告)日：2001-06-06

申请号：EP99969177.7

申请日：1999-09-13

申请人： SIENNA IMAGING, INC.

发明人： SHAKLEE, Kerry, L. ,  O'BRIEN, Daniel, C. ,  LENIGER, Kurt, A. ,  BRACKETT, Gary, L. ,  DENNY, Richard, W.

IPC分类号： H01J29/70 ,  H01J29/72 ,  G09G1/04

CPC分类号： G03B27/32 ,  G09G1/04 ,  G09G1/16

摘要： Disclosed is a photographic printer with bi-directional sweeping of a color CRT (116) to expose a photosensitive medium (120). Image data from a host system is received by the printer and stored in a data drive system (112). The data drive system (112) converts the data into a series of rows of dot row data to produce the appropriate image desired. Linear deflection amplifiers sweep the CRT's electron beam across the color phosphor areas on the face of the CRT (116) to expose the medium (120) utilizing the dot row data. The present invention sweeps and writes data bi-directionally, eliminating the retrace period associated with sweeping and writing in one direction, and without any hold periods once printing starts. The data in every other dot row is processed in reverse order so that the dot row data utilized in the reverse writing sweep will be exposed onto the medium (120) in proper relationship to the rows written before and after it.