Method for providing a broadband infrastructure in a building by means of optical fibers

• US 7,035,512 B2
• Filed: 03/15/2002
• Issued: 04/25/2006
• Est. Priority Date: 03/16/2001
• Status: Expired due to Term

• Current Assignee: Koninklijke KPN NV
• Original Assignee: Koninklijke KPN NV
• Inventors: Van Bijsterveld, Cornelis Casparus
• Primary Examiner(s): NGUYEN, KHIEM M
• Application Number:
  US10/471,506
• Publication Number:
  US 20040126068A1
• Time in Patent Office: 1,502 Days
• Field of Search: 385/101, 385/14, 385/15, 385/31, 385/33, 385/34, 385/100, 385/102, 439/147, 439/577
• US Class Current: 385/101
• CPC Class Codes: G02B 6/475 Mechanical aspects of installing cables in ducts or the like for buildings
• CPC Class Codes: H04B 10/1149 Arrangements for indoor wireless networking of information
• CPC Class Codes: H04B 10/25 Arrangements specific to fibre transmission

Abstract

A system and method for the transmission of optical signals via optical fibers in a building provided with a system of conduits for electric wires. The optical fibers are ducted through the same conduits as the electric wires. The optical fibers are fitted to the same wall or ceiling terminals as the electric wires. The terminals can comprise connectors to which the optical fibers are fitted, or optical transceivers. The terminals can also comprise electrically supplied modules for amplifying, processing, routing or converting the optical signals. Monitoring, controlling, processing etc. of the optical signals can be done in a central element, in the proximity of a central module for monitoring etc. the electric energy in the building.

Claims

1. A method for providing broadband infrastructure in a building by using optical fibers for transmission of optical signals, the building being provided with conduits for ducting electric wires, the electrical wires to be used to transfer electric energy, wherein the optical fibers are ducted through the same conduits as the electric wires;

the method comprising the steps of;

fitting a plurality of the electric wires in one of said conduits to a wall or ceiling terminal and at least one of the optical fibers in said one conduit jointly to the same terminal, the terminal having an optical transceiver, to which said one optical fiber has been fitted, and an optical lens; and

radiating infrared light signals, through the lens and supplied by said one optical fiber, into a space and receiving infrared light signals, through the lens, from equipment present in the space.

2. The method recited in claim 1 wherein the transceiver comprises an optical reflector.

3. The method recited in claim 1 wherein the terminal further comprises an amplifier for amplifying the infrared light signals exchanged by the transceiver, wherein power is supplied to the amplifier by the plurality of electric wires.

4. The method recited in claim 1 wherein the terminal further comprises a module which receives power supplied by the plurality of electric wires.

5. The method recited in claim 4 wherein the module operates on signals appearing on the one optical fiber.

6. Apparatus for transmitting optical signals via optical fibers in a building, the building having conduits for enveloping electric wires, the electrical wires to be used to transfer electric energy, wherein the optical fibers are enveloped by the same conduits as the electric wires, the apparatus comprising:

a wall or ceiling terminal to which a plurality of the electric wires in one of said conduits and one of the optical fibers in said one conduit are jointly fitted, the terminal having an optical transceiver, to which said one optical fiber has been fitted; and

the optical transceiver, comprising an optical lens, for radiating infrared light signals supplied by said one optical fiber into a space and for receiving infrared light signals from equipment present in the space.

7. The apparatus recited in claim 6 wherein the transceiver comprises an optical reflector.

8. The apparatus recited in claim 6 wherein the terminal further comprises an amplifier for amplifying the infrared light signals exchanged by the transceiver, wherein power is supplied to the amplifier by the plurality of electric wires.

9. The apparatus recited in claim 6 further comprising a module which receives power supplied by the plurality of electric wires.

10. The apparatus recited in claim 9 wherein the module operates on signals appearing on the one optical fiber.

11. Apparatus for transmitting optical signals via optical fibers in a building, the building being provided with conduits for enveloping electric wires, the electric wires to be used to transfer electric energy, the optical fibers being enveloped by the same conduits as the electric wires, the apparatus comprising:

a wall or ceiling terminal to which a plurality of the electric wires in one of the conduits and one of the optical fibers in said one conduit are jointly fitted, the terminal having a connector and an electrical-to-optical (E/O) converter, wherein the one optical fiber is fitted, via the E/O converter, to the connector to which a matching counter-connector can be connected; and

wherein the E/O converter is arranged to convert between electrical signals transferred by said connectors and optical signals transferred by said one optical fiber.

12. The apparatus recited in claim 11 further comprising a module which receives power supplied by the plurality of electric wires.

13. The apparatus recited in claim 12 wherein the module operates on the signals transferred via the one optical fiber.