Communications: directive radio wave systems and devices (e.g. – Clutter elimination – Mti
Patent
1995-03-15
1997-01-28
Pan, Daniel H.
Communications: directive radio wave systems and devices (e.g.,
Clutter elimination
Mti
342450, 342451, G06F 924, G06F 1342
Patent
active
055985726
ABSTRACT:
An information terminal system including a process control computer and a portable terminal device for inputting information to said process control computer and gaining information from said process control, includes component information storing means for storing information for distinguishing each one of plural components composing a plant and component identifying means for identifying a component from plural components composing a plant and existing in the direction indicated by and at the location of the portable terminal device, by using information for distinguishing each one of the plural components stored in the component information storing means.
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M. Polke, "Prozessleittechnik [Process Control Engineering]", R. Oldenburg Verlag Munchen, 1st Edition 1991, Chap. 8, pp. 379-455.
Futakawa Masayasu
Horita Masato
Kuzunuki Shoshiro
Maruyama Takekazu
Nishikawa Atsuhiko
Hitachi , Ltd.
Pan Daniel H.
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