Siemens Aktiengesellschaft

Siemens Enterprise Communications Gmbh & Co. Kg

Annette Roder

Klaus Steinigke

Stefan Hennen

Karl Klug

Stephan Schaade

Jürgen Brieskorn

Klemens Skorka

Edmund Ernst

Eckhardt Belgardt

Jörg Köpp

Siegfried Huber

Mike Thoms

Gert Hoffmann

Method for an electronic device (IT) that is controllable in at least one operating state (OP) and one standby state (SBY), with which a main processing unit (MPU) controls the operating state (OP) and a preprocessing unit (PPU) controls the standby state (SBY), such that, by means of the preprocessing unit (PPU), the main processing unit (MPU) and, to some extent, the functional units of the electronic device (IT) that are implemented by circuitry are switched by the control into at least one state having reduced energy consumption. An advantage can be seen in the fact that, by using a preprocessing unit (PPU), in the operating state of 'standby' (SBY) the total energy consumption of the electronic device (IT) is reduced, both due to the significantly reduced energy consumption of a preprocessor (PPE) in the preprocessing unit (PPU) and to the units (MPU) that have been switched by the control into a state having reduced energy consumption, and the electronic device can therefore be operated more economically. An additional advantage is that the reduction of the energy consumption is achieved exclusively by circuitry measures and that no implementations must be included in the programs of the electronic device (IT).

Electronic apparatus having reducible power consumption in the readiness state

Telecommunications systems can be synchronized via the transmission link. In this process, the telecommunication systems receive the clock signal and an additional information item, which describes the quality of the clock signal, from the received data stream. In telecommunication systems which are connected to a number of differently standardized transmission networks, different algorithms for evaluating the differently formatted clock signal quality data are necessary in the main processor. The present telecommunication system simplifies the communication of clock signal qualities. The different interface cards have converters which convert the clock signal quality information between a transmission-network-specific format and an independent format. The main processor only contains a subunit for processing all clock signal qualities. The present method for synchronizing a telecommunication system includes a converting the transmission-network-specific data into messages of an independent format. The present method for transmitting data includes converting the independently formatted messages into transmission-network-specific data.

Telecommunications system, and methods for transmitting data, and telecommunication system synchronization method

A telecommunications system includes devices to provide output clock signals that are synchronous to at least one source clock signal. A main clock generator includes a selector to select one of the output clock signals. The main clock generator generates a main clock signal based on a selected one of the output clock signals. Each of the devices includes a quality detector (i) to detect a quality of the at least one source clock signal, and (ii) to interrupt providing an output clock signal in response to a decrease in quality of the at least one source clock signal. The main clock generator includes an interrupt detector to detect an interruption in an output clock signal provided by at least one of the devices. The selector selects a different output clock signal if the interrupt detector detects that the selected one of the output clock signals is interrupted.

Telecommunications system and method for producing a master clock in the same

In the Prior Art, a higher-ranking mechanism controls the standby circuiting of assemblies in 1:N redundancy, resulting in a system dynamics loss. The invention solves this problem in that the devices responsible for the standby circuiting events in the higher-ranking mechanism are relocated into a standby circuit assembly of the 1:N redundancy provided for standby circuiting purposes. The standby circuit events are thus controlled and monitored by the standby circuit assembly itself, relieving the higher-ranking mechanism of these tasks.

Method for equivalently connecting subassemblies in 1:N redundancy

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Munich, Germany

Annette Roder