Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2001-04-13
2002-12-17
Gandhi, Jayprakash N. (Department: 2841)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S689000, C361S689000, C312S223100, C345S169000
Reexamination Certificate
active
06496365
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to an input apparatus, more particularly to an input apparatus adapted to communicate wirelessly with a portable computerized apparatus.
2. Description of the Related Art
FIGS. 1 and 2
illustrate a conventional handheld computer keyboard system, as proposed in U.S. Pat. No. 6,108,200, that includes a keyboard portion
1
, a cover portion
2
and an interface assembly
3
. The keyboard portion
1
has a top surface
101
provided with a plurality of keys
103
, and a bottom surface
102
. The keyboard portion
1
further has a stabilizing leg
4
mounted retractably thereto at the bottom surface
102
. The cover portion
2
is pivotally connected to the keyboard portion
1
, and has an inner surface
201
, and an outer surface
202
opposite to the inner surface
201
. The cover portion
2
is operable so as to move from a closed position, where the inner surface
201
overlies the top surface
101
of the keyboard portion
1
, to an opened position, where the cover portion
2
forms an angle with the top surface
101
. The interface assembly
3
is mounted on the inner surface
201
of the cover portion
2
, and includes an input/output connector
301
to be connected to an input/output port
501
of a computerized apparatus
5
, such as a personal digital assistant or a mobile telephone, that is supported by the cover portion
2
when the latter is at the opened position.
Since the interface assembly
3
is mounted on the cover portion
2
, and since the space between the input/output connector
301
and the inner surface
201
is fixed, the conventional keyboard system cannot be adapted for use with another computerized apparatus of a different thickness.
There is available in the art, a computer keyboard that is designed to communicate wirelessly with a computer main module. However, the computer keyboard as such is not designed to serve as an input apparatus for a personal digital assistant.
SUMMARY OF THE INVENTION
Therefore, the object of the present invention is to provide an input apparatus adapted to communicate wirelessly with a portable computerized apparatus.
According to the present invention, an input apparatus is adapted to communicate wirelessly with a portable computerized apparatus having top, bottom, left, right and rear portions. The top portion of the portable computerized apparatus is provided with a wireless communications device. The input apparatus comprises:
a keyboard module having front and rear ends, a bottom surface, and a top surface provided with a plurality of keys thereon;
a wireless communications unit coupled electrically to the keyboard module and adapted to establish wireless communication between the keyboard module and the wireless communications device of the portable computerized apparatus;
a computerized apparatus support member coupled to the rear end of the keyboard module and adapted to support the rear and bottom portions of the portable computerized apparatus such that the portable computerized apparatus forms an angle greater than 90 degrees with respect to the top surface of the keyboard module; and
a communications unit support member having a lower section coupled to the keyboard module and an upper section mounted with the wireless communications unit, the upper section of the communications unit support member being adapted to extend beyond the top portion of the portable computerized apparatus when the portable computerized apparatus is supported on the computerized apparatus support member so as to dispose the wireless communications unit proximate to the wireless communications device.
REFERENCES:
patent: 5347630 (1994-09-01), Ishizawa et al.
patent: 6049450 (2000-04-01), Cho et al.
patent: 6053410 (2000-04-01), Wike et al.
patent: 6108200 (2000-08-01), Fullerton
patent: 6421235 (2002-07-01), Ditzik et al.
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