Communication circuit for local area network

Details Communication circuit for local area network Communication circuit for local area network

1995-09-29

1998-06-30

Nguyen, Tan Q.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

701 29, 701 34, 370216, 370245, 370252, 3409322, 307 101, B60Q 100, H04J 314

Patent

active

057748179

ABSTRACT:
A circuit arrangement disposed in a node within a local area network is connected to a communication bus within the local area network. The circuit arrangement includes an input circuit for introducing data from the communication bus into the node. A node state detecting device is operative for detecting whether or not the node is in a stand-by state. A power feed suspending device is operative for suspending power feed to at least part of the input circuit when the node state detecting device detects that the node is in the stand-by state. A power feed restarting device is operative for monitoring a voltage at the communication bus, and restarting the power feed to at least part of the input circuit when the voltage at the communication bus becomes equal to a level indicating reception of data. A protective circuit is operative for protecting the input circuit from an abnormal current which flows from the communication bus.

REFERENCES:
patent: 5384765 (1995-01-01), Sakagami et al.
patent: 5404498 (1995-04-01), Tanaka et al.
patent: 5408227 (1995-04-01), Hirabayashi et al.
patent: 5450403 (1995-09-01), Ichii et al.
patent: 5483517 (1996-01-01), Kurata et al.
patent: 5485580 (1996-01-01), Takai et al.
patent: 5488324 (1996-01-01), Mizuta et al.
patent: 5523978 (1996-06-01), Yoon et al.

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