Elevator communication controller

Details Elevator communication controller Elevator communication controller

B - Operations, Transporting

66

B

364/20, 364/4

B66B 1/14 (2006.01) B66B 1/46 (2006.01) B66B 3/02 (2006.01)

Patent

CA 1266729

31 53,109 ABSTRACT OF THE DISCLOSURE An addressable elevator communication controller which, when addressed by a valid input message, prepares a return message and has its return data interface enabled for one message. The return message is automatically clocked out of the communication controller via the enabled return data interface as the next input message is clocked into the controller, regardless of whether the incoming message is addressed to this communication controller or to another communication controller. The communication controller is operable in one of two completely different modes, simply by controlling the logic level of one input pin. Input messages, as well as message clocking input pulses, are screened through digital correlators which discriminate actual signals from line noise.

529613

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