Portable information instrument having a display cover protectin

Details Portable information instrument having a display cover protectin Portable information instrument having a display cover protectin

1997-12-04

1999-12-14

Malzahn, David H.

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

361681, 345905, G06F 116

Patent

active

060030526

ABSTRACT:
In a portable information instrument including a housing having an window, and a display screen accommodated within the housing but exposed in the window to display data processed in the portable information instrument, a cover sheet for protecting the display screen is formed of a soft back sheet and a plurality of rectangular hard pieces fixed on the back sheet. An accommodating mechanism is provided within an inside of the housing, and is spring-biased to retract the cover sheet into the inside of the housing. A stopper mechanism is also provided within the inside of the housing, for inhibiting accommodation of the cover sheet into the inside of the housing by the accommodating mechanism. A sensor is provided within the inside of the housing, for detecting passage of the rectangular hard pieces before the sensor, and an information processor located within the inside of the housing, counts a detection signal generated by the sensor, for activating the stopper mechanism when a count value reaches a predetermined value.

REFERENCES:
patent: 4589659 (1986-05-01), Yokoi et al.
patent: 4703161 (1987-10-01), McLean
patent: 4847798 (1989-07-01), Kurashima
patent: 5002184 (1991-03-01), Lloyd
patent: 5200913 (1993-04-01), Hawkins et al.
patent: 5383138 (1995-01-01), Motoyama
patent: 5555157 (1996-09-01), Moller et al.
patent: 5682182 (1997-10-01), Tsubosaka

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