Detachable securement of an accessory device to a handheld...

Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices

Reexamination Certificate

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Details

C361S689000, C292S008000, C312S223100, CD14S140400

Reexamination Certificate

active

06282088

ABSTRACT:

FIELD OF THE INVENTION
This invention pertains to a handheld computing device. More specifically, embodiments of this invention provide for detachably securing an accessory device to a handheld computer using an insertion coupling.
DESCRIPTION OF THE RELATED ART
A principal feature of handheld computers is portability. To this end, functions and features of handheld computers are sometimes sacrificed to maintain the handheld computer in a small, compacted state. Additional features and functions of the handheld computer may be added by linking the handheld computer to an accessory device. Examples of such accessory devices includes modem devices and communication cradles.
Previous accessory devices have generally been immobile, so that the handheld computer had to use the accessory device as a docking port. However, the widespread use of computers and computer networks has resulted in a need for accessory devices that are portable. Therefore, there is an increasing need for enabling accessory devices to securely couple with a handheld computer without hindering the portability of the handheld computer.
Other previous accessory devices that have been designed to be portable with the handheld computer have relied on coupling mechanism that allows the accessory device to couple with the handheld computer by first placing the handheld computer on the accessory device, and then maneuvering portions of the accessory device around the handheld computer to secure it with the accessory devices. Such coupling mechanisms are overly complicated, requiring the user to perform too many steps and maneuvers to secure the accessory device with the handheld computer. Requiring additional steps to secure the accessory device with the handheld computer leaves the handheld computer prone to being dropped prior to it being secured. This is especially problematic considering that these accessory devices require a free hand from the user for the sole purpose of manipulating portions of the accessory device to secure the handheld computer.
SUMMARY OF THE INVENTION
Embodiments of this invention provide for coupling an accessory device to a back face of a handheld computer while electrically connecting to the handheld computer through a communications or output port. In one embodiment, the accessory device “piggy-backs” on the handheld computer so that the accessory device and handheld computer form a portable combination. An insertion coupling may be used to detachably secure the accessory device with the handheld computer. The insertion coupling used with embodiments of the invention is preferably a snap-in coupling having one or more biased members. The biased members may be contracted to engage an aperture on a back face of the handheld computer. When released, the biased members secure the accessory device to the handheld computer.
In an embodiment, the accessory device incorporates an insertion coupling and has dimensions that complement the handheld computer. The accessory device may then be readily secured to the handheld computer so that the combination of the two devices is portable and easy to handle. Embodiments of the invention may be incorporated with, for example, modem devices which can add communication abilities to the handheld computer.


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