公开(公告)号：US3697678A

公开(公告)日：1972-10-10

申请号：US3697678D

申请日：1970-11-23

Applicant: IBM

Inventor： BELLESON JAMES GARMAN

IPC: G09G5/34 ,  H04N1/387 ,  H04N5/22 ,  H04N5/78 ,  H04N7/08

CPC classification number: G09G5/346 ,  H04N1/3872

Abstract: A system for selectively displaying discrete small portions of a large picture on a television monitor, with adjustable controlling means for continuously varying the boundaries of any one of the small portions being displayed. A cyclic disc buffer is provided for the reproduction of video signals. First and second images, each comprising a series of information and vertical retrace lines, are recorded as separate video frames on first and second tracks of a buffer disc so that the first information line of the second image corresponds in time to the first retrace line of the first image. The buffer includes first and second transducers associated respectively with the first and second tracks of the disc. The transducers are connected through a high speed matrix switch to a standard television monitor. The switch forms part of the adjustable controlling means and is adapted to alternatively connect the first and second transducers to the television monitor for directly switching the image output of the television monitor between the last information line of the first image and the first information line of the second image.

公开(公告)号：AU3488478A

公开(公告)日：1979-10-11

申请号：AU3488478

申请日：1978-04-07

Applicant: IBM

Inventor： BELLESON JAMES GARMAN ,  DISBROW JOHN RANDOLPH ,  EISELEN EVERETT TRUMAN

IPC: G06F3/12 ,  G06K15/02 ,  G06K15/10 ,  G06K15/12 ,  G06K15/22 ,  B41B27/10 ,  B41J29/00

公开(公告)号：DE2825321A1

公开(公告)日：1979-01-04

申请号：DE2825321

申请日：1978-06-09

Applicant: IBM

Inventor： BELLESON JAMES GARMAN ,  DISBROW JOHN RANDOLPH ,  EISELEN EVERETT TRUMAN

IPC: G06F3/12 ,  G06K15/02 ,  G06K15/10 ,  G06K15/12 ,  G06K15/22 ,  B41J3/10

公开(公告)号：DE2629097A1

公开(公告)日：1977-02-03

申请号：DE2629097

申请日：1976-06-29

Applicant: IBM

Inventor： BELLESON JAMES GARMAN ,  CLARK KENDALL

IPC: G01D5/26 ,  G01B11/00 ,  G01B11/02 ,  G01B11/24 ,  G01B11/245 ,  G01R31/265 ,  G01R31/308 ,  G01R31/309 ,  H01L21/66 ,  H05K13/08 ,  G01R31/28 ,  B07C5/34

Abstract: This patent discloses an improved inspection tool for rapidly inspecting miniature electronic conductor patterns, circuits and the like. The tool focuses a laser beam to a small laser spot that raster scans a large conductor pattern area on the workpiece being inspected. Reflected laser light from the workpiece impinges upon a light detector that generates electrical signals according to the presence or absence of conductor pattern material on the workpiece at the momentary X and Y coordinate of the scanning laser spot. The light detector signals are compared with a previously encoded data image of the correct circuit pattern for the X and Y coordinates of the scanning laser spot. When the signals and the data agree at all X and Y coordinate points the workpiece is accepted. If the signals and the data do not agree at one or more X and Y coordinate points a defect in the circuit pattern is indicated. A defect may indicate out-of-tolerance dimensions, possible electrical short circuits, and/or open circuits. The extent of a defect may be determined by adjacent X and Y coordinate points and suitable computer programming, while workpieces having extended or out-of-tolerance defects are rejected. The improved disclosed inspection tool includes apparatus for automatically compensating for variations in the workpieces, and to effect registration for the scanning laser spot.