Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1994-10-31
1997-08-26
Picard, Leo P.
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
439 73, 361726, 361737, G06F 116, H05K 716
Patent
active
056616341
ABSTRACT:
In an information processing system having a portable terminal unit, such as a hand-held computer, driven by a rechargeable battery and a data communication adaptor for enabling communication between the portable terminal unit and a host computer of the system, the terminal unit and the data communication adaptor are designed to minimize the size thereof in the following five ways. First, a memory card holding mechanism for connecting the memory card of the portable terminal unit is provided between a swinging back lid and a recess of the back casing. Second, a normal interface and a high-speed interface are both provided in the portable terminal unit and the the data communication adaptor respectively. Third, an auxiliary connector for an optimal device to extend a function of the portable terminal unit is provided in the opening of the casing of the portable terminal unit movable in three dimensions mounted on a printed circuit board. Fourth, a moisture resistant seal made of rubber or resin is molded integrally onto one of the joining edges of an upper casing and a lower casing. Fifth, an electric power source portion of the data communication adaptor is used not only for charging the battery of the portable terminal unit but also supplying a power adequate for enabling a data transmission operation thereof.
REFERENCES:
patent: 4870604 (1989-09-01), Tatsuno
patent: 5220520 (1993-06-01), Kessoku
patent: 5355357 (1994-10-01), Yamamori et al.
Akasawa Nobuaki
Iura Akihiko
Kobayashi Toshiyuki
Kumagai Mitsuaki
Miyanaga Takao
Feild Lynn D.
Fujitsu Limited
Picard Leo P.
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