公开(公告)号：ES2159588T3

公开(公告)日：2001-10-16

申请号：ES95113658

申请日：1995-08-31

Applicant: IBM

Inventor： BARRETT ROBERT C ,  OLYHA ROBERT S JR ,  RUTLEDGE JOSEPH D

IPC: G06F3/041 ,  G06F3/038 ,  G06F3/033 ,  G06F3/023

Abstract: A user interface apparatus and method for a computing or processing system employing a graphical user interface is presented. In order to provide a good user feel, and specifically to avoid a feeling of inertia or sluggishness in cursor motion as the user starts or stops movement, the apparatus and method provide a negative inertia transfer function. That is, the cursor movement signal produced by applying the input parameter to a transfer function in accordance with the invention is related to a sum of (i) the input parameter, and (ii) a signal related to the rate of change of the input parameter. This is preferably implemented as an additive high-pass transfer function. Preferred embodiments can employ analog circuitry or a digitally programmed transfer function algorithm. The input parameter to which the transfer function is applied can be a magnitude signal, such as that from a polar coordinate system, or separate components, such as x- and y-components from a rectangular coordinate system, can be treated separately.

公开(公告)号：CA2349650A1

公开(公告)日：2002-01-27

申请号：CA2349650

申请日：2001-06-01

Applicant: IBM

Inventor： POWELL CARL G ,  OLYHA ROBERT S JR ,  LOVAS ISTVAN ,  DOVE DEREK B ,  BUDD RUSSEL A

IPC: G02B5/04 ,  G02B1/10 ,  G02B5/10 ,  G02B5/30 ,  G02B17/08 ,  G02B27/00 ,  G02B27/01 ,  G02B27/02 ,  H04N5/64 ,  G02B27/18

Abstract: A head mounted virtual image display unit is provided which is compact in si ze and weight, and incorporates a high performance optical system offering a clear see- through capability. A sliding light shield may be incorporated for those instances when see-through capability is not desired. A focus adjustment may be incorporated to permit the focusing of the image, fo r example, at a distance of approximately 18 inches to infinity. An adjustable headband may be incorporated that adapts to fit the users head. A flexible boom structure may be incorporated to facilitate fine positional adjustment of the optical assembly. A slider and ball joint mechanism may al so be incorporated to facilitate positional adjustment of the optical assembly. A built-in microphone may be incorporated to enable speech input by the user. The head mounted virtual image display unit may be used comfortably in conjunction with eye or safety glasses, and provides a useful image to the user without blocking his view of the surrounding environment. The unit is design ed to have a pleasing appearance so as to greatly enhance user acceptability.

公开(公告)号：CA2349650C

公开(公告)日：2007-08-21

申请号：CA2349650

申请日：2001-06-01

Applicant: IBM

Inventor： LOVAS ISTVAN ,  POWELL CARL G ,  OLYHA ROBERT S JR ,  BUDD RUSSEL A ,  DOVE DEREK B

IPC: G02B5/04 ,  G02B27/01 ,  G02B1/10 ,  G02B5/10 ,  G02B5/30 ,  G02B17/08 ,  G02B27/00 ,  G02B27/02 ,  G02B27/18 ,  H04N5/64

Abstract: A head mounted virtual image display unit is provided which is compact in si ze and weight, and incorporates a high performance optical system offering a clear see- through capability. A sliding light shield may be incorporated for those instances when see-through capability is not desired. A focus adjustment may be incorporated to permit the focusing of the image, fo r example, at a distance of approximately 18 inches to infinity. An adjustable headband may be incorporated that adapts to fit the users head. A flexible boom structure may be incorporated to facilitate fine positional adjustment of the optical assembly. A slider and ball joint mechanism may al so be incorporated to facilitate positional adjustment of the optical assembly. A built-in microphone may be incorporated to enable speech input by the user. The head mounted virtual image display unit may be used comfortably in conjunction with eye or safety glasses, and provides a useful image to the user without blocking his view of the surrounding environment. The unit is design ed to have a pleasing appearance so as to greatly enhance user acceptability.