Matches 1 - 9 out of 9
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6408334 Communications system for multiple computer system management circuits  
A communications system for multiple computer system management circuits to enable remote management of the computer systems via a remote management system. The management circuits are operably...
5404363 Two-fail-operational fault-tolerant multiple clock system  
A multiple-fail-operational fault-tolerant clock having a plurality of interconnected and identical clock modules, that provides a fault tolerant clock signal despite some clock module failures....
4846310 Signal transmission apparatus for elevator  
A signal transmission apparatus for an elevator in a multi-story building comprises a small number of signal lines which carry, in a time-shared fashion, hall call signal and hall call registration...
4814761 Method and apparatus for communication control in loop communication network  
In a communication network in which a main station and several I/O systems are connected by a closed-loop communication line, the communication line includes a data channel and a clock pulse...
4674084 Network system  
A network system having a single-wire common signal transmission line for interfacing a serial bit data string between a plurality of data stations connected thereto comprises: (a) first means for...
4639913 Method and equipment for electronically transmitting informations  
There are described a method and an equipment for electronically transmitting informations, whereby by means of a pulse generator, a clock pulse series is generated, said pulses are fed to a closed...
4639912 Signal transmission apparatus  
A signal transmission apparatus from a control unit to a plurality of memory units which correspond to signal terminal means and which are connected in series with each other, wherein the memory...
4569045 3-Wire multiplexer  
The invention provides a 3-wire multiplexing system exhibiting high noise immunity, particularly suitable for industrial control applications. A master station provides AC power, and clocking and...
4525837 Digital signal transmission system  
In a digital signal transmission system for effecting time-division multiplexing/circuit switching transmission of data in the form of packets by means of telecommunication cable, a packet...
Matches 1 - 9 out of 9