EP 0885376 B8 20070228 - OPTICAL ENCODER FOR DRIVING AN ELECTRIC MOTOR
Title (en)
OPTICAL ENCODER FOR DRIVING AN ELECTRIC MOTOR
Title (de)
OPTISCHER KODIERER ZUM BETREIBEN EINES ELEKTROMOTORS
Title (fr)
APPAREIL DE CODAGE OPTIQUE POUR ACTIONNER UN MOTEUR ELECTRIQUE
Publication
Application
Priority
- US 9602275 W 19960227
- US 39447395 A 19950227
Abstract (en)
[origin: WO9627118A1] Optical encoder apparatus and methods are provided for converting the cyclic motion of an electro-mechanical machine, such as an electric motor, into at least one electrical signal having a predetermined waveform. The apparatus may include at least one photo-detector (26) which is responsive to at least one pattern of incident radiant energy; at least one photo-emitter (24) that emits a supply of radiant energy coupled to the photo-detector by an optical path; and an optically programmed system including an optical encoder disc (30) which contains at least one optically detectable graphical pattern (32) and a mask (36) containing at least one aperture (38) which permits the pattern of radiant energy to pass to the detector.
IPC 8 full level
G01D 5/347 (2006.01); H02J 7/02 (2006.01); B60L 3/00 (2006.01); B60L 11/18 (2006.01); G01D 5/34 (2006.01); G01D 5/36 (2006.01); G01P 3/486 (2006.01); H01M 10/48 (2006.01); H02J 3/38 (2006.01); H02J 7/00 (2006.01); H02K 29/10 (2006.01); H02P 6/08 (2016.01); H02P 6/16 (2016.01)
CPC (source: EP US)
G01D 5/3473 (2013.01 - EP US); G01D 5/36 (2013.01 - EP US); G01P 3/486 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9627118 A1 19960906; AT E349681 T1 20070115; CA 2247353 A1 19960906; CA 2247353 C 20010814; CN 1256571 C 20060517; CN 1501051 A 20040602; CN 1982851 A 20070620; CN 1982851 B 20120815; DE 69636794 D1 20070208; DE 69636794 T2 20071011; EP 0885376 A1 19981223; EP 0885376 A4 20010912; EP 0885376 B1 20061227; EP 0885376 B8 20070228; JP 2008118853 A 20080522; JP 4377427 B2 20091202; US 5665965 A 19970909
DOCDB simple family (application)
US 9602275 W 19960227; AT 96908483 T 19960227; CA 2247353 A 19960227; CN 200310103682 A 19960227; CN 200610074109 A 19960227; DE 69636794 T 19960227; EP 96908483 A 19960227; JP 2007314021 A 20071204; US 71162996 A 19960905