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公开(公告)号：CA2098358C
公开(公告)日：1997-06-24
申请号：CA2098358
申请日：1993-06-14
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： BOSTICA BRUNO , CINATO PAOLA , DE BOSIO ALFREDO
Abstract: An optical switch for fast cell-switching networks comprises an optical interconnection network and an electrical control network. In order to fully exploit optical component capabilities and to overcome the constraints imposed by operating speed limits of electronic components, each input of the interconnection network is associated with components which form aggregates of cells which are to follow a similar path through the interconnection network and time-compress the aggregates, and each output is associated with components for the time expansion of the aggregates and separation of the aggregated cells.
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公开(公告)号：CA2098358A1
公开(公告)日：1993-12-16
申请号：CA2098358
申请日：1993-06-14
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： BOSTICA BRUNO , CINATO PAOLA , DE BOSIO ALFREDO
Abstract: The optical switch for fast cell-switching networks comprises an optical interconnection network (CM) and an electrical control network (CT). In order to fully exploit optical component capabilities and to overcome the constraints imposed by operating speed limits of electronic components, each input (IN1...INk) of the interconnection network (CM) is associated with means (PAC1...PACk) forming aggregates of cells which are to follow a same path through the interconnection network and time-compressing the aggregates, and each output (OU1...OUk) is associated with means (PAD1...PADk) for the time expansion of the aggregates and separation of the aggregate cells.
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公开(公告)号：CA2022503A1
公开(公告)日：1991-02-02
申请号：CA2022503
申请日：1990-08-01
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： DANIELE ANTONELLA , DE BOSIO ALFREDO
Abstract: A fast packet and frequency switch, with inputs and outputs connected to optical fibres, each of them allowing the transit of a certain number of different-wavelength optical carriers, modulated by serial information flows organized into packets. Said packets are phase-realigned and their label is converted upon the control of external processors designed to set-up and break connections. Then a frequency conversion of the optical carriers allotted to packets is carried out and the packets are recombined into a unique fibre by a passive recombination network in order to be stored into an optical loop memory, which is an optical fibre delay line. Each optical packet flow is extracted at suitable times, is frequency- converted and among the various frequencies obtained there are selected only those to be sent to corresponding output fibres outgoing from the switch, after having been recombined with those of the other converted flows.
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公开(公告)号：CA2022503C
公开(公告)日：1998-04-28
申请号：CA2022503
申请日：1990-08-01
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： DANIELE ANTONELLA , DE BOSIO ALFREDO
Abstract: A fast packet and frequency switch has inputs and outputs connected to optical fibres, each accommodating a number of different wavelength optical carriers, modulated by serial information flows organized into packets. These packets are phase-realigned and their labels are converted by an input block under control of external processors designed to set up and tear down connections. The optical carriers allocated to packets are frequency converted, and the packets are recombined onto a single fibre by a passive recombination network for storage in an optical loop memory formed by an optical fibre delay line. Packets are extracted as their assigned outputs and output carrier frequencies become available, and the combined packets are again frequency converted using converters driven so that frequencies not corresponding to the assigned outputs and output carriers are discarded. The remaining packets are recombined at the outputs.
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公开(公告)号：ITTO920510D0
公开(公告)日：1992-06-15
申请号：ITTO920510
申请日：1992-06-15
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： CINATO PAOLA , BOSTIGA BRUNO , DE BOSIO ALFREDO
Abstract: The optical switch for fast cell-switching networks comprises an optical interconnection network (CM) and an electrical control network (CT). In order to fully exploit optical component capabilities and to overcome the constraints imposed by operating speed limits of electronic components, each input (IN1...INk) of the interconnection network (CM) is associated with means (PAC1...PACk) forming aggregates of cells which are to follow a same path through the interconnection network and time-compressing the aggregates, and each output (OU1...OUk) is associated with means (PAD1...PADk) for the time expansion of the aggregates and separation of the aggregate cells.
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Patent Agency Ranking
公开(公告)号：DE69321996D1
公开(公告)日：1998-12-17
申请号：DE69321996
申请日：1993-06-14
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： BOSTICA BRUNO , CINATO PAOLA , DE BOSIO ALFREDO
Abstract: The optical switch for fast cell-switching networks comprises an optical interconnection network (CM) and an electrical control network (CT). In order to fully exploit optical component capabilities and to overcome the constraints imposed by operating speed limits of electronic components, each input (IN1...INk) of the interconnection network (CM) is associated with means (PAC1...PACk) forming aggregates of cells which are to follow a same path through the interconnection network and time-compressing the aggregates, and each output (OU1...OUk) is associated with means (PAD1...PADk) for the time expansion of the aggregates and separation of the aggregate cells.
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公开(公告)号：DE68922650D1
公开(公告)日：1995-06-22
申请号：DE68922650
申请日：1989-02-27
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： DE BOSIO ALFREDO
Abstract: A node for a fast packet-switching network in optical-electrical technology comprises an optical switching matrix (MOT) and an electrical control equipment (EC) which processes the signalling and the information packet headers. More particularly, the control equipment updates the label and, depending on such a label, searches for the routing through the node. A centralized node controller (CEL) processes the signalling, while a distributed processing system (PEE) processes the packet headers and routes the packets through the network. For all communications in progress, the distributed processing system (PEE) periodically forwards routing requests towards an electrical self-routing switching matrix (MEL) associated with the optical matrix (MOT); when a connection path has been found between an input and an output of the electrical matrix (MEL), the same path is reproduced in the optical matrix (MOT) and the packets are transferred towards the node output through the optical matrix.
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公开(公告)号：DE574864T1
公开(公告)日：1995-06-08
申请号：DE93109486
申请日：1993-06-14
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： BOSTICA BURNO , CINATO PAOLA , DE BOSIO ALFREDO
Abstract: The optical switch for fast cell-switching networks comprises an optical interconnection network (CM) and an electrical control network (CT). In order to fully exploit optical component capabilities and to overcome the constraints imposed by operating speed limits of electronic components, each input (IN1...INk) of the interconnection network (CM) is associated with means (PAC1...PACk) forming aggregates of cells which are to follow a same path through the interconnection network and time-compressing the aggregates, and each output (OU1...OUk) is associated with means (PAD1...PADk) for the time expansion of the aggregates and separation of the aggregate cells.
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公开(公告)号：IT1219054B
公开(公告)日：1990-04-24
申请号：IT6715188
申请日：1988-02-29
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： DE BOSIO ALFREDO
Abstract: A node for a fast packet-switching network in optical-electrical technology comprises an optical switching matrix (MOT) and an electrical control equipment (EC) which processes the signalling and the information packet headers. More particularly, the control equipment updates the label and, depending on such a label, searches for the routing through the node. A centralized node controller (CEL) processes the signalling, while a distributed processing system (PEE) processes the packet headers and routes the packets through the network. For all communications in progress, the distributed processing system (PEE) periodically forwards routing requests towards an electrical self-routing switching matrix (MEL) associated with the optical matrix (MOT); when a connection path has been found between an input and an output of the electrical matrix (MEL), the same path is reproduced in the optical matrix (MOT) and the packets are transferred towards the node output through the optical matrix.
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公开(公告)号：DE69321996T2
公开(公告)日：1999-05-12
申请号：DE69321996
申请日：1993-06-14
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： BOSTICA BRUNO , CINATO PAOLA , DE BOSIO ALFREDO
Abstract: The optical switch for fast cell-switching networks comprises an optical interconnection network (CM) and an electrical control network (CT). In order to fully exploit optical component capabilities and to overcome the constraints imposed by operating speed limits of electronic components, each input (IN1...INk) of the interconnection network (CM) is associated with means (PAC1...PACk) forming aggregates of cells which are to follow a same path through the interconnection network and time-compressing the aggregates, and each output (OU1...OUk) is associated with means (PAD1...PADk) for the time expansion of the aggregates and separation of the aggregate cells.
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