EP 2774884 A1 20140910 - Elevator component communication
Title (en)
Elevator component communication
Title (de)
Aufzugkomponentenkommunikation
Title (fr)
Communication de composant d'ascenseur
Publication
Application
Priority
EP 13158169 A 20130307
Abstract (en)
Elevator components (310, 320) can communicate with each other over a signal path (330) using a combination of direct current (DC) and oscillating signals. An oscillating signal on the signal path (330) can be interpreted as indicating a first state of a component (320) (e.g., "active"), a first DC signal on the signal path (330) can be interpreted as indicating a second state of the component (e.g., "inactive") (320), and a second DC signal on the signal path (330) can be interpreted as indicating a third state of the component (e.g., "fault") (320). Thus, three states of the component (320) can be communicated over a single signal path (330).
IPC 8 full level
B66B 1/34 (2006.01)
CPC (source: EP)
B66B 1/3453 (2013.01)
Citation (applicant)
US 3188579 A 19650608 - MEIKLEJOHN WILLIAM H
Citation (search report)
- [X] US 4431864 A 19840214 - STURDEVANT JR NORMAN J [US]
- [X] US 2011302466 A1 20111208 - IKAWA MASAHIKO [JP], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 13158169 A 20130307; EP 2014054297 W 20140306