Communications: electrical – Condition responsive indicating system – Specified housing
Patent
1997-05-23
2000-12-19
Lee, Benjamin C.
Communications: electrical
Condition responsive indicating system
Specified housing
361680, 361681, 361683, 174 35R, 174 35GC, 277637, 277647, G08B 2300
Patent
active
061632686
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 optional 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.
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Akasawa Nobuaki
Iura Akihiko
Kobayashi Toshiyuki
Kumagai Mitsuaki
Miyanaga Takao
Fujitsu Limited
Lee Benjamin C.
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