US 2002/0172228 A1Published application

Method and system for gallvanically isolated transmission of gigabit/sec data via a slip ring arrangement

AssigneeSiemens Aktiengesellschaft

InventorStefan Popescu

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Abstract

In a data transmission system, and a method for transmitting data in the gigabit/second range, data are transferred from a source located on a rotary part to a stationary part via a slip ring system. A first gigabit data link proceeds from the source at the rotary part to a rotary module of the slip ring system, from which the data are transferred to a stationary module of the slip ring system. From the stationary module of the slip ring system, the data are transferred via a second data link to a receiver. Each of the rotary module and the stationary module of the slip ring system has a clock regenerator. The clock regenerators are operated to synchronize the gigabit/second data, proceeding from the first data link and proceeding to the second data link, to a stable reference clock, so as to prevent jitter from proceeding from the source to the receiver.

Claims20

Dependent claims

A data transmission system comprising:

a stationary part;
a rotary part rotatable relative to said stationary part;
a source of gigabit/sec data at said rotary part, said data being subject to jitter;
a slip ring system for transmitting said data from said rotary part to said stationary part, said slip ring system having a rotary slip ring module at said rotary part and a stationary slip ring module at said stationary part;
a first gigabit/sec data link proceeding from said source at said rotary part;
a first clock regenerator connected to said first data link at said rotary slipping module;
a receiver for said gigabit/sec data at said stationary part;
a second gigabit/sec data link proceeding to said receiver at said stationary part;
and
a second clock regenerator connected to said second data link at said stationary slip ring module, said first and second clock regenerators synchronizing said gigabit/sec data, proceeding from said first data link and proceeding to said second data link, to a stable reference clock to prevent said jitter from proceeding from said source to said receiver.

7 more elements

A method for transmitting gigabit/sec data comprising the steps of:

providing a stationary part and a rotary part that is rotatable relative to said stationary part;
generating gigabit/sec data at a source at said rotary part, said data being subject to jitter;
transmitting said data from said rotary part to said stationary part via a slip ring system, said slip ring system having a rotary slip ring module at said rotary part and a stationary slip ring module at said stationary part;
transmitting said data via said a first gigabit/sec data link at said rotary part proceeding from said source to said rotary slip ring module;
connecting a first clock regenerator to said first data link at said rotary slip ring module;
providing a receiver for said gigabit/sec data at said stationary part;
transmitting said gigabit/sec data via a second data link at said stationary part proceeding from said stationary slip ring module to said receiver;
connecting a second clock regenerator to said second data link at said stationary slip ring module;
and
operating said first and second clock regenerators in combination to synchronize said gigabit/sec data, proceeding from said first data link and proceeding to said second data link, to a stable reference clock to prevent said jitter from proceeding from said source to said receiver.

7 more elements

Dependencies are inferred from the claim text.