Telefonaktiebolaget Lm Ericsson (publ)

Nils K Isaksson

Oleg Avsan

Klaus Wildling

System for processing cooperation signals by storing and executing the

In a pipeline computer system having a plurality of serially connected registering means, each having input means, output means and storing means which, in response to a clock pulse transmits information stored in the storing means to the output means and thereafter stores information in the storing means which is present at the input means, apparatus for branching data from registering means acting as a source of incoming data flow to a plurality of outgoing information flow branches comprising: clock pulse generating means for generating clock pulses; source registering means responsive to the clock pulses for generating a flow of digital information words synchronous with the clock pulses and pluralities of digital branching bits synchronous with the clock pulses; a plurality of branch registering means each having an input means connected to the output means of said source registering means, clocking input means and an output means connected to one of the output information flow branches for, in response to an activating signal received at its clocking input means, transferring to the associated information flow branch digital information stored therein and then accepting for storage at least part of the digital information word then present at its input means; and a plurality of clock pulse locking means, each of said clock pulse locking means including input means for receiving a clock pulse and one of the digital branching bits and output means connected to the clocking input means of an associated branching register means for transmitting an activating signal thereto upon the occurrence of a clock pulse when the received branching bit has a particular value.

Arrangement for branching an information flow

Digital words of a pipelined incoming information flow are branched into a number of outgoing information flow branches. The term 'pipelined' means that the flow is transferred through memory means whose activation inputs are controlled by clock pulses, the memory means arranged successively with reference to the flow direction being coincidently activated to receive successive words of the flow. A digital branching information flow for ordering into which of the outgoing branches the incoming words have to be branched is generated in step with the incoming flow. The basis for each outgoing branch is obtained from the output of a branching register to which the incoming flow is supplied. The branching registers are activated by the clock pulses, but if an outgoing branch contains only a part of the incoming flow, an activation locking device is used in order to block the clock pulses in dependence on the respective branching information. The branching information flow may be transferred to the locking devices through branching information registers whose activation inputs may also be controlled by locking devices. A branching information register is, however, not to be controlled by the locking device connected to its own output.

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Huddinge, Sweden

Nils K Isaksson