Telecommunications – Transmitter and receiver at same station – Having particular housing or support of a transceiver
Reexamination Certificate
1998-06-15
2002-12-17
Le, Thanh Cong (Department: 2684)
Telecommunications
Transmitter and receiver at same station
Having particular housing or support of a transceiver
C455S347000, C455S575100
Reexamination Certificate
active
06496685
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates generally to portable phones, and is particularly concerned with a portable phone having a removable imbedded battery.
Portable phones such as cellular phones typically have an outer casing in which the main circuit board and other components are mounted. The outer casing has a recess on one face for removably receiving a battery unit enclosed in a battery housing with contacts on the outside of the battery housing for engaging contacts on the recessed face of the phone casing. The battery unit may be recharged without removing it from within the phone casing.
As electronic components decrease in size, the shape and size of a portable phone is less a factor of the electronics, and the battery dominates the overall width, length, and thickness. It is preferable for the phone thickness to be minimized, and the requirement for a removable battery pack releasably held in a recess on a phone housing adds to the thickness requirements.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a new and improved portable phone having an imbedded battery.
According to the present invention, a portable phone is provided which comprises an outer casing having opposite upper and lower walls, one of the walls, e.g. the lower wall, having an opening for access to the interior of the casing, and a lid removably mounted in the opening for normally closing the opening, a main circuit board mounted in the outer casing, a plurality of phone components mounted on the circuit board with a predetermined region of the board aligned with the opening left empty to form a recess for receiving a battery, the battery receiving recess having contacts for engagement with battery contacts, and a battery removably engaged in the recess with battery contacts engaging the contacts in the recess, whereby the battery can be removed and replaced via the opening after opening the lid.
Preferably, the lid has a ridge on its inner face for snap engagement with the battery, so that the battery is secured to the lid while inside the phone, and is automatically removed with the lid when it is released from the opening. This will make battery removal and replacement easier. The battery is preferably a compact, thin battery such as a rectangular prismatic cell which has a height of around 6 mm.
This arrangement allows the phone thickness to be reduced substantially or minimized, by eliminating three wall thicknesses (one wall thickness to form the recess and two wall thicknesses, one on each of the major surfaces of the battery forming a portion of the battery casing) required in the known arrangements with removable battery packs. Instead of requiring two extra housing wall thicknesses for encasing the battery, as in the prior art, the battery is not encased but is imbedded directly in the recess provided on the circuit board or circuit card within the phone housing itself. At the same time, the user can readily access the battery to change batteries after a large number of charge and discharge cycles, without disassembling the phone.
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Chow Marland
Peterzell Paul E.
Ross David J.
Brown Charles D.
Chow C.
Cong Le Thanh
Qualcomm Incorporated
Seo Howard H.
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