Boots – shoes – and leggings
Patent
1992-07-17
1995-02-28
Harvey, Jack B.
Boots, shoes, and leggings
364DIG1, 364273, 307 23, G06F 300
Patent
active
053945522
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a docking system constituted by a station which extends ability or enhances performance of a personal computer and the personal computer mounted upon this station.
BACKGROUND ART
A station for extending functions has been hitherto utilized. This station can be mounted with an extension board and a floppy disk unit/a hard disk unit, which can extend ability or enhance performance of a personal computer of the notebook type by connecting it with the notebook type personal computer.
By the way, when a personal computer of the notebook type is mounted on this station, it is necessary that an electric power source at the notebook type personal computer side is infallibly cut off. If the station is connected with the notebook type personal computer of which the electric power source is turned on, such problems as data of a program during execution become extinct, or IC is destroyed due to difference in voltage between a contained battery of the notebook type personal computer and a domestic electric power source of the notebook type personal computer. In addition, the same problems also take place when the notebook type personal computer is separated from the station in a state in which the electric power source is turned on.
DISCLOSURE OF INVENTION
In order to solve the above problems, the present invention comprises a first detecting means for detecting combination states of the personal computer and said station, a second detecting means for detecting separating operation of the personal computer from the station, a combination holding means for holding a combination state of said personal computer side connector and the station side connector, a switching means for switching the personal computer side electric power source portion to the station side electric power source portion, a third detecting means for detecting a state of placement of said personal computer on the station, and a control unit which cuts the personal computer side electric power source after performing backup processing at an execution program when the personal computer side electric power source portion is in a conductive state when the third detecting means detects a state of placement, supplies electric power from the station side electric power source portion to the personal computer by means of the switching means when the first detecting means detects a state of the station the connector being combined with the personal computer side connector, and cuts the electric power source after performing backup processing of an execution program when the personal computer is in an actuation state when the second detecting means detects separating operation of said personal computer.
According to the docking system of the present invention, when the personal computer side electric power source portion is in a conductive state when the personal computer is placed on the station, then it investigates whether the program is executed or not. And when the program is executed, the backup processing of the execution program is performed, and thereafter the electric power source is cut off.
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is a block diagram of the first embodiment of the docking system according to the present invention,
FIG. 2 is a perspective view of a state in which the personal computer is separated from the station,
FIG. 3 is a total perspective view of the docking system in which the present invention is carried out,
FIG. 4 consist of FIGS. 4A-4C is cross-sectional views showing a procedure for mounting the personal computer on the station,
FIG. 5 is a flowchart showing a procedure for mounting the personal computer on the station,
FIG. 6 consist of FIGS. 6A-6D is cross-sectional views showing a procedure for separating the personal computer from the station, and
FIG. 7 is a flowchart showing a procedure for separating the personal computer from the station,
FIG. 8 is a block diagram as the second embodiment of the docking system according to the present invention,
FIG. 9 is a pe
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Harvey Jack B.
Seiko Epson Corp.
Sheikh Ayaz R.
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