Global Patent Index - EP 1101169 A1

EP 1101169 A1 2001-05-23 - ISOLATED HIGH-SPEED COMMUNICATION BUS

Title (en)

ISOLATED HIGH-SPEED COMMUNICATION BUS

Title (de)

ISOLIERTER HOCHGESCHWINDIGKEITSKOMUNIKATIONSBUS

Title (fr)

BUS DE COMMUNICATION RAPIDE ISOLE

Publication

EP 1101169 A1 (EN)

Application

EP 00936831 A

Priority

  • EP 0004927 W
  • US 13817699 P
  • US 53168800 A

Abstract (en)

[origin: WO0075796A1] Isolation components (320, 420) are connected directly between a communications bus (180) and a connector (110a-z) that connects plug-in modules (200) to the common bus, to minimize the capacitive loading on the communications bus. In one embodiment of this invention, a diode (320) is placed between the communications bus (180) and the connector (110), thereby isolating the communications bus from the capacitance of the connector and associated wiring when the diode is in the off condition. In a preferred embodiment of the invention, an isolation transistor (420) is placed between the communications bus (180) and the connector (110), and is configured to present a small and consistent collector capacitance to the communications bus in both an on and off condition. By providing a known capacitance at known points on the transmission line forming the communications bus, conventional compensation techniques can be employed to minimize or eliminate the effects of these capacitances. The techniques present herein may be applied to both unidirectional and bi-directional bus communications.

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

G06F 13/40

IPC 8 full level (invention and additional information)

G06F 3/00 (2006.01); G06F 13/40 (2006.01); H04L 25/02 (2006.01); H05K 1/02 (2006.01); H05K 1/14 (2006.01)

CPC (invention and additional information)

G06F 13/409 (2013.01); H05K 1/0237 (2013.01); H05K 1/14 (2013.01)

Citation (search report)

See references of WO 0075796A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0075796 A1 20001214; EP 1101169 A1 20010523; JP 2004500616 A 20040108

INPADOC legal status


2001-12-12 [18W] APPLICATION WITHDRAWN

- Date of withdrawal: 20011019

2001-08-16 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010615

2001-05-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-05-23 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI