Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
214 words
A composite concentration system (10) of the type utilizing a time division system in which voice signals ( V 1 , 2... ) ) are di g itallized and then concentrated in a traffic, characterized in that it comprises a.) a first subscriber line interface circuit means (21A) of a first type which connects subscriber's lines (11 1...m, 12 1...m , 14 1...m ) directly to subscriber line interface circuits (22 1...m ); b.) a second subscriber line interface circuit means (21B) of a second type which connects subscriber's lines (13 1 ... m , 15 1...m ) to subscriber line interface circuits (33 1...n ) ) via a space division concentration switch (32); and c.) a time division concentration switch (54) connected to said first and second subscriber line interface circuit means (21A, 21B) via switching interfaces (23, 52),where d.) a number of output terminals of said first subscriber line interface circuit means (21A) being equal to that of output terminals of said second subscriber line interface circuit means (21B) when a concentration ratio of said space division concentration switch (32) of said second subscriber line interface circuit means (21B) is 1:1, and e.) corresponding output terminals being constructed such that the same channel is assigned to said time division concentration switch (54).
Claim 2
Dependent Claim
214 words
A composite concentration system (10) of the type utilizing a time division system in which voice signals ( V 1 , 2... ) ) are di g itallized and then concentrated in a traffic, characterized in that it comprises a.) a first subscriber line interface circuit means (21A) of a first type which connects subscriber's lines (11 1...m, 12 1...m , 14 1...m ) directly to subscriber line interface circuits (22 1...m ); b.) a second subscriber line interface circuit means (21B) of a second type which connects subscriber's lines (13 1 ... m , 15 1...m ) to subscriber line interface circuits (33 1...n ) ) via a space division concentration switch (32); and c.) a time division concentration switch (54) connected to said first and second subscriber line interface circuit means (21A, 21B) via switching interfaces (23, 52),where d.) a number of output terminals of said first subscriber line interface circuit means (21A) being equal to that of output terminals of said second subscriber line interface circuit means (21B) when a concentration ratio of said space division concentration switch (32) of said second subscriber line interface circuit means (21B) is 1:1, and e.) corresponding output terminals being constructed such that the same channel is assigned to said time division concentration switch (54).
Claim 3
Dependent Claim
33 words
The composite concentration system according to claim 1 wherein said first subscriber line interface circuit means comprises a space division switch fixedly provided in a preceding stage of each subscriber's line interface circuit.
Claim 4
Dependent Claim
40 words
The composite concentration system according to claim 1 or 2 wherein each of said first and second subscriber line interface circuit means (21A, 21B) is constructed as plug-in type wherein the circuit means is formed on a printed substrate (100).
Claim 5
Dependent Claim
44 words
The composite concentration system according to claim 1, 2 or 3 wherein each of said first and second subscriber line interface circuit means (21A, 21B) comprises multiplexing means (23, 23A, 23B) provided on the output side of each subscriber line interface circuit (21A, 21B).
Claim 6
Dependent Claim
51 words
The composite concentration system according to claim 1, 2, 3 or 4 which further comprises means (113, 115, 116, 117) for connecting one of the subscriber's terminals belonging to one subscriber line interface circuit means (21A, 21B) to an input side of the other subscriber line interface circuit means (21A, 21B).
Claim 7
Dependent Claim
56 words
The composite concentration system according to claim 5 wherein said connecting means (113, 115, 116, 117) comprises a switch contact, which when one of said subscriber line interface circuit means(21A, 21B) to which subscriber's terminals belong is removed, connects said subscriber's terminals to the input side of the other subscriber line interface circuit means (21A, 21B).