EP0668681A2
Expired / Lapsed
EP
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Self-routing switching system
Assignee: Fujitsu Ltd
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Filing: 1988-02-05
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Granted: —
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Expires: 2008-02-05
Abstract
Abstract A self-routing switching system comprised of: a route setting means (10) which monitors identification information out of pairs of transmission information and identification information input from a plurality of incoming lines and forms control information for setting a path from an incoming line to an outgoing line corresponding to said incoming line and designated by said identification information and adding the thus formed control information to said transmission information and a self-routing speech path (20) which is a multipath speech path able to create a plurality of paths formed between said plurality of incoming lines and outgoing lines from each one incoming line to each one outgoing line and which monitors said control information and selects and sets a path for leading said transmission information from said incoming line to said outgoing line from among said plurality of paths and autonomously transfers said transmission information to said outgoing line through the thus set path.
Inventors
- 👤 Kazuo Hajikano
- 👤 Koso Murakami
- 👤 Shunji Nyupasukamiooka 606 Abe
- 👤 Tetsuo Yajima-Manshion 303 Nishino
- 👤 Toshimasa Kizukisumiyoshi-Danchi 3-32 Fukui
- 👤 Osamu Isono
- 👤 Tetsuo Daiichi-Shinjo-Ryo Tachibana
- 👤 Eisuke Iwabuchi
- 👤 Hichiro Hayami
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 05:26
CPC Classifications
H; H04; H04L; H04L49/00; H04L49/25; H04L49/253; H04L49/254; H04L49/15; H04L49/1507; H04L49/20; H04L49/205; H04L49/30; H04L49/3009; H04L49/3018; H04L49/45; H04L49/55; H04L49/552; H04L49/555
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
287 words
A self-routing switching system comprised of: a route setting means which monitors identification information out of pairs of transmission information and identification information input from a plurality of incoming lines and forms control information for setting a path from an incoming line to an outgoing line corresponding to said incoming line and designated by said identification information and adding the thus formed control information to said transmission information and a self-routing speech path which is a multipath speech path able to create a plurality of paths formed between said plurality of incoming lines and outgoing lines from each one incoming line to each one outgoing line and which monitors said control information and selects and sets a path for leading said transmission information from said incoming line to said outgoing line from among said plurality of paths and autonomously transfers said transmission information to said outgoing line through the thus set path. 2. A self-routing switching system according to claim 1, wherein: said route setting means has a call processor and addition circuits for said control information provided corresponding to each said incoming line, in a call setting phase, said call processor is notified, from a calling party of said transmission information of said identification information showing a destination party of said transmission information and, by referring to a table storing a predetermined correspondence relationship between said identification information and said control information, and in a transfer phase, said control information is read out from said table with the notified identification information and, in said addition circuits, added to the said transmission information, subject to said control information, said transmission information is switched in the said self-routing speech path and autonomously led to the destination outgoing line.
Claim 2
Dependent Claim
220 words
A self-routing switching system according to claim 2, wherein said self-routing speech path is comprised of: a converting means for converting input information comprised of said transmission information from said incoming lines and said control information into a time-series format; a transmission information storing means for successively storing transmission information sent successively from said converting means; a write address storing means for storing addresses for accessing said transmission information storing means and successively giving said control information as addresses to said transmission information storing means; a plurality of read address storing means provided corresponding to a plurality of outgoing lines; an address distributing means for storing read addresses in said read address storing means corresponding to an outgoing line designated by control information stored in the addresses of said transmission information storing means, output from said write address storing means; an address selecting means for successively selecting the plurality of said read address storing means and giving the addresses stored therein to the transmission information storing means as read addresses and for storing the same in said write address storing means; and a distributing means for distributing the transmission information successively read from said transmission information storing means by the address selection of said address selecting means to the outgoing line corresponding to the said selected read address storing means.
Claim 3
Dependent Claim
54 words
A self-routing switching system according to claim 3, wherein said transmission information storing means is comprises of a random access memory (RAM), each said read address storing means is comprised of a first-in first-out (FIFO) memory, and said write address storing means is comprised of an FIFO memory which successively stores said read addresses.
Claim 4
Dependent Claim
143 words
A self-routing switching system according to claim 2, wherein said self-routing speech path is comprised of: a memory means which stores input information comprised of said transmission information from said incoming lines and said control information and operates at N + 1 times the transmission speed of said incoming lines (wherein N is the number of said incoming lines); a control means for controlling the writing and reading with respect to said memory means based on said control information and for executing writing control at one phase out of the N + 1 phases formed by the said N + 1 speed and executing reading control during the remaining N phases; and latch groups provided corresponding to said outgoing lines for temporarily holding read information from said memory means and, based on the control of the corresponding said control means, discharging held information.
Claim 5
Dependent Claim
43 words
A self-routing switching system according to claim 5, further comprising a detection means provided at a stage before said memory means and said control means for detecting said control information out of said input information and inputting the same to said control means.
Claim 6
Dependent Claim
156 words
A self-routing switching system according to claim 2, wherein said self-routing speech path is comprised of: memory means provided corresponding to each said outgoing line which operate at N + 1 times the transmission speed of said incoming lines (wherein N is the number of said incoming lines); speed conversion means provided corresponding to each said incoming line for converting the input information comprised of the transmission information from said incoming lines and said control information to said N + 1 speed; a selector for allocating the output of each said speed conversion means to a desired one of said memory means; and a control means for controlling said speed conversion means, said selector, and said memory means, performing writing of input information to said memory means during N phases of N + 1 number of phases formed by said N + 1 speed, and performing reading to said outgoing lines at the remaining one phase.
Claim 7
Dependent Claim
43 words
A self-routing switching system according to claim 7, further comprising a detection means provided at a stage before said memory means and said control means for detecting said control information out of said input information and inputting the same to said control means.
Claim 8
Dependent Claim
45 words
A self-routing switching system according to claim 8, wherein each said memory means is comprised of a first-in first-out (FIFO) memory, the outputs are sent through flip-flops to corresponding said outgoing lines, and said flip-flops are driven at suitable timings by corresponding said control means.
Claim 9
Dependent Claim
108 words
A self-routing switching system according to claim 2, wherein said self-routing speech path is comprised of: storing circuits provided corresponding to each said incoming line which store input information comprised of the transmission information from said incoming lines and said control information; a memory circuit which receives as address input said control information in each said storing circuit, give input information transmission permission signal to one of said storing circuits, and outputs control signals; and a switch circuit which outputs said input information sent out upon said input information transmission permission signal to one of the said outgoing lines designated by said control signal from said memory circuit.
Claim 10
Dependent Claim
112 words
A self-routing switching system according to claim 10, wherein: said storing circuits are provided with buffers for respectively storing said input information and said control information of said input information; said switch circuit is comprised of a matrix switch which receives input information from said buffers and outputs the same to a corresponding outgoing line; and said memory circuit is comprised of an arbitration memory which combines the control information from said buffers to form address input and outputs, to one of said storing circuits, pair of said input information transmission permission signal and crosspoint control signal for selecting said matrix switch and sending the input information to a destination outgoing line.
References Cited (Backward Citations)
No citation records indexed.
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