Browse Prior Art Database

Protective Carrying Case for a Digitizer Tablet Unit

IP.com Disclosure Number: IPCOM000106304D
Original Publication Date: 1993-Oct-01
Included in the Prior Art Database: 2005-Mar-20
Document File: 2 page(s) / 111K

Publishing Venue

IBM

Related People

Alfonso, PM: AUTHOR [+5]

Abstract

Disclosed is protective case for a digitizer tablet unit, surrounding the unit with a layer of shock-absorbing material while exposing surfaces of the unit to which access is required for operation, so that the case can provide protection for the unit as it is carried and during use.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Protective Carrying Case for a Digitizer Tablet Unit

      Disclosed is protective case for a digitizer tablet unit,
surrounding the unit with a layer of shock-absorbing material while
exposing surfaces of the unit to which access is required for
operation, so that the case can provide protection for the unit as it
is carried and during use.

      A digitizer tablet is a form of input device through which
information can be entered into a data processing system, such as a
personal computer.  As shown in the figure, a digitizer tablet unit 1
has a liquid crystal display 2 covering a grid of wires (not shown).
Information is entered by moving a stylus 3, (shown in a storage
cavity 4 within housing 5 of unit 1) along the glass outer surface of
display 2, so that an electromagnet within the stylus interacts with
the grid of wires, producing signals indicating the position of the
stylus.  As stylus 3 is moved in this way, adjacent pixels in display
2 are turned on to provide a visual indication of the path of the
stylus, and digital signals indicating stylus position are sent to a
data processing system for storage.

      The glass outer surface of display 2 is protected, along with
various internal electronic components, by transporting and operating
digitizer tablet unit 1 within a protective case 6.  Protection
against the occurrence of damage, if the unit is dropped, is afforded
by an arrangement of high-density, closed-cell dampening foam,
trapped between two layers of a rugged material, such as a flexible
vinyl plastic, sewn together to extend along all sides of unit 1
within case 6.

      Case 6 includes a number of features providing for the
convenient use of tablet unit 1 within the case.  The full opening of
a flap 7, into the position in which it is shown, exposes an end slot
8, through which unit 1 is inserted into or removed from case 6.
This slot 8 also provides clearance for the downward rotation of an
end door 9 to expose port connectors (not shown) of unit 1, and for
the attachment of various cables extending from external devices to
these connectors.  A fro...