Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Patent
1994-12-19
1997-11-25
Powell, Mark R.
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
345145, 345156, 345157, 345163, 345158, G09G 302
Patent
active
056917473
ABSTRACT:
A compact, miniaturized pointing device for use with an electronic apparatus, such as a computer, personal data assistant (PDA), or digital watch display screen, is provided to indicate the position of a cursor mark on the display screen. The pointing device includes an elastic member which has a body portion that extends above the surface of the electronic apparatus with a section below the surface including pressure sensitive elements and corresponding position indicators. When a finger is placed on the elastic member, vibrational pressures are generated and pressure signals are propagated through the elastic member reaching the pressure sensing elements housed in the submerged section. The intensity of the propagating signal attenuates with a square of the distance traveled and, therefore, from a determination of the ratio of the magnitude the output voltage signals from the pressure sensing elements, the position of the pressed point on the elastic member can be computed. The pointing device computes the coordinates of the pressed point in relation to the projected pressed point on orthogonal axes of a planar surface at the submerged section, and from these coordinates are utilized by circuitry of the electronic apparatus to correspondingly position the cursor mark on the display screen. A movement of the finger on the elastic member can be translated into a movement vector, and sampling rates are adjusted to follow any velocity rate of the movement vector thereby allowing the screen to accurately reflect the movement of the finger.
REFERENCES:
patent: 4302011 (1981-11-01), Pepper, Jr.
patent: 5262777 (1993-11-01), Low et al.
patent: 5341133 (1994-08-01), Savoy et al.
patent: 5349263 (1994-09-01), Katayama et al.
patent: 5349370 (1994-09-01), Katayama et al.
patent: 5448263 (1995-09-01), Martin
patent: 5485171 (1996-01-01), Cooper et al.
patent: 5580719 (1996-12-01), Gervals
Johnson W. Glen
Kovalick Vincent E.
Powell Mark R.
Seiko Epson Corporation
LandOfFree
Electronic pointing device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electronic pointing device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic pointing device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2110899