公开(公告)号：CA1332761C

公开(公告)日：1994-10-25

申请号：CA613500

申请日：1989-09-27

Applicant: IBM

Inventor： POHL WOLFGANG D ,  SCHNEIKER CONRAD W

IPC: G01Q10/00 ,  G01Q70/06 ,  G02B21/00 ,  G11B5/00 ,  G11B5/012 ,  G11B9/00 ,  G11B9/08 ,  G11B9/14 ,  G11B21/21 ,  H01L27/20

Abstract: This distance-controlled tunneling transducer (1) comprises a plurality of sharply pointed tips (2) arranged in an array at tunneling distance from the electrically conductive surface (6) of a storage medium (7). Each tip (2) is attached to a cantilever beam (3) permitting the distance between each tip (2) and the surface (6) to be individually pre-adjusted by electrostatic means (8, 9). Arranged in juxtaposition with each cantilever beam (3) is a simple active control circuit (12, 13, 16) for adjusting the tip/surface distance during operation of the storage unit thus preventing crashes of the associated tip (2) into possible asperities on the surface (6) of the recording medium (7). Each control circuit (12, 13, 16) is designed such that its operating voltage, at thesame time, serves to pre-adjust its associated cantilever beam (3) and to maintain the gap width essentially constant.

公开(公告)号：CA2016225A1

公开(公告)日：1990-11-15

申请号：CA2016225

申请日：1990-05-07

Applicant: IBM

Inventor： FABBIO ROBERT A ,  LEONARD ANNE G ,  SCHNEIKER CONRAD W

IPC: G06F9/06 ,  G06F3/033 ,  G06F3/048 ,  G06F9/44 ,  G06F15/00 ,  G06F3/14 ,  G06F3/00 ,  G06F9/00

Abstract: AT9-89-039 An interface tool of this invention provides means for presenting items for selection by a user of a data processing system and means for executing the selected items. Each item of the menus and dialogues is an individual and independent object in an object database, referred to as an interface object. These objects can be added or deleted independent of each other, allowing greater extendability and customization of the interface. The data within each of the interface objects and the selections from a user determine which of the interface objects will make up any one of several logical frame presentations at any one time to be presented to a user. The interface tool of this invention is adaptable for use with any one of a plurality of graphic libraries for presenting the actual screen image of the logical frame presentation to the user. In addition, the interface tool utilizes the message facilities of the system to present the elements of the interface in multiple languages. More specifically, the interface tool of this invention is used for managing the system resources of a data processing system by a user.