Device for receiving a transmission signal and for transmitting an optical beam and method of using the device

US6259081A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Walter Gross · Herzogenaurach, DE
• Ekkert Bartosch · Erlangen, DE
• Franz-Josef Unterlass · Höchstadt an der Aisch, DE

Key dates

• Filing date: Feb 8, 2000
• Grant date: Jul 10, 2001
• Expiry date: Feb 8, 2020

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B10/40
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A device is provided for receiving a transmission signal and for transmitting an optical beam having an adjustable intensity, wherein the optical beam effects the transmission signal. A transmitter for transmitting the beam has a controller for setting the intensity. A receiver for receiving the transmission signal has an analyzer for outputting a threshold signal if the strength of the transmission signal exceeds a predetermined limit value. A pick-up outputs a start signal for starting the transmission signal. A control unit is connected to the analyzer, the pick-up and the controller. After reception of the start signal from the pick-up, the control unit sets the intensity at the controller to a value which rises continuously from essentially zero until the analyzer outputs the threshold signal, and then leaves the controller unchanged until reception of a new start signal. A method is also provided for using the device together with a measuring device configured as a transceiver, in an electrical power distribution network.