Global Patent Index - EP 0988751 A1

EP 0988751 A1 2000-03-29 - COUPLER FOR TRANSMITTING SIGNALS ACROSS A ROTATING INTERFACE

Title (en)

COUPLER FOR TRANSMITTING SIGNALS ACROSS A ROTATING INTERFACE

Title (de)

KOPPLER ZUR SIGNALÜBERTRAGUNG ÜBER EINE ROTIERENDE SCHNITTSTELLE

Title (fr)

COUPLEUR PERMETTANT DE TRANSMETTRE DES SIGNAUX VIA UNE INTERFACE ROTATIVE

Publication

EP 0988751 A1 (EN)

Application

EP 98922368 A

Priority

  • US 9810050 W
  • US 85731197 A

Abstract (en)

[origin: WO9852350A1] A coupler (20) for transmitting signals across a rotating interface (22). The coupler (20) comprises a first part (24) and a second part (26) mounted for rotation about an axis with respect to the first part (24). The first part (24) comprises a first magnetic coil (30) and a first optical signal transmission device (32). The second part comprises a second magnetic coil (34) inductively coupled to the first magnetic coil (30) and a second optical signal transmission device (36). The first and second magnetic coils (30 and 34) are inductively coupled for transmitting electrical power across the rotating interface (22). The first and second optical signal transmission devices (32 and 36) are optically coupled for transmission of an optical signal therebetween. One of the first and second optical signal transmission devices (32 and 36) includes an electrical to optical signal conversion device (46), and the other of the first and second optical signal transmission devices includes an optical to electrical signal conversion device (48). The first and second optical signal transmission devices (32 and 36) preferably also include optical fibers. The coupler can be used to mount a video camera on a pan and tilt mechanism so that power, video, and control signals can be transmitted across the rotating interface (22).

IPC 1-7 (main, further and additional classification)

H04N 5/225; H01R 11/30; H01R 39/00; H04N 1/40

IPC 8 full level (invention and additional information)

H04N 5/222 (2006.01); G02B 6/36 (2006.01); G02B 6/38 (2006.01); H01F 38/14 (2006.01); H01R 13/66 (2006.01); H01R 39/64 (2006.01)

CPC (invention and additional information)

G02B 6/3817 (2013.01); G02B 6/3604 (2013.01); H01R 13/6633 (2013.01); H01R 39/64 (2013.01)

Designated contracting state (EPC)

DE ES FR GB IT

EPO simple patent family

WO 9852350 A1 19981119; AU 7493298 A 19981208; CA 2290438 A1 19981119; EP 0988751 A1 20000329; EP 0988751 A4 20000531; JP 2001525992 A 20011211

INPADOC legal status


2001-06-20 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20001228

2000-09-27 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20000816

2000-05-31 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20000417

2000-05-31 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): DE ES FR GB IT

2000-03-29 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991110

2000-03-29 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES FR GB IT