Global Patent Index - EP 1062845 A1

EP 1062845 A1 2000-12-27 - APPARATUS FOR AND METHOD OF TRANSMITTING AND RECEIVING DATA OVER A LOW VOLTAGE POWER DISTRIBUTION SYSTEM

Title (en)

APPARATUS FOR AND METHOD OF TRANSMITTING AND RECEIVING DATA OVER A LOW VOLTAGE POWER DISTRIBUTION SYSTEM

Title (de)

VORRICHTUNG UND VERFAHREN ZUM SENDEN UND EMPFANGEN VON DATEN ÜBER EINE NIEDERSPANNUNGSVERTEILUNG

Title (fr)

APPAREIL ET PROCEDE DE TRANSMISSION ET RECEPTION DE DONNEES PAR UN SYSTEME D'ALIMENTAION A TENSION BASSE

Publication

EP 1062845 A1 (EN)

Application

EP 99910486 A

Priority

  • GB 9900759 W
  • GB 9805431 A

Abstract (en)

[origin: GB2335334A] The apparatus comprises a control unit 14 for disconnecting a low voltage power supply 10 from a power track 16 during a portion of the supply voltage waveform e.g. around zero-crossings, switches 22 for disconnecting the loads 32 and circuits 40, 42 and 14 for transmitting data over track 16 while the power and loads 32 are disconnected. The power supply and the loads are disconnected to overcome signal attenuation due to low track impedance and to present a constant load during signal transmission. Sensors 40, 42 detecting any of heat, movement, infrared, sound, light, temperature or voice transmit signals over the track to the control unit 14 including a microprocessor and control signals may be selectively sent from the unit 14 for individual control of brightness of lamps 32. Each interface unit 30 may have an individual i.d. and the transmitted message may include a checksum for error detection.

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

H05B 37/02; H02J 13/00; H04B 3/54

IPC 8 full level (invention and additional information)

H02J 13/00 (2006.01); H04B 3/54 (2006.01); H05B 37/02 (2006.01)

CPC (invention and additional information)

H04B 3/54 (2013.01); H02J 13/0051 (2013.01); H05B 37/02 (2013.01); H05B 37/0263 (2013.01); H04B 2203/542 (2013.01); H04B 2203/5425 (2013.01); H04B 2203/5458 (2013.01); H04B 2203/5495 (2013.01); Y02B 90/2692 (2013.01); Y02E 60/783 (2013.01); Y04S 40/123 (2013.01); Y04S 40/146 (2013.01)

Citation (search report)

See references of WO 9948340A1

Designated contracting state (EPC)

DE FR GB IT NL

EPO simple patent family

GB 2335334 A 19990915; GB 2335334 B 20010328; GB 9805431 D0 19980506; EP 1062845 A1 20001227; WO 9948340 A1 19990923

INPADOC legal status


2006-02-08 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20050729

2001-07-18 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010605

2000-12-27 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001013

2000-12-27 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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