Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
135 words
A packet switching device which transmits a data packet transmitted from a plurality of input communication channels (12) to a plurality of output communication channels (13) comprising; (a) a switch (10) which continuously switches between the input communication means (12) and the output communication means (13) (b) a buffer (11) which temporarily stores the data packets transmitted from the input communication channels (12) then transmits the stored in sequence to the switch (10); (c) a detection means (114) which detects the packet storage status of the buffer (10); and (d) a transmission control means (14,15) which controls the transmission status from the buffer (11) to the switch (10) so that a packet is selected, among the packets stored in the buffer (11), to be transmitted in order to reduce the number of the designated yet.
Claim 2
Dependent Claim
135 words
A packet switching device which transmits a data packet transmitted from a plurality of input communication channels (12) to a plurality of output communication channels (13) comprising; (a) a switch (10) which continuously switches between the input communication means (12) and the output communication means (13) (b) a buffer (11) which temporarily stores the data packets transmitted from the input communication channels (12) then transmits the stored in sequence to the switch (10); (c) a detection means (114) which detects the packet storage status of the buffer (10); and (d) a transmission control means (14,15) which controls the transmission status from the buffer (11) to the switch (10) so that a packet is selected, among the packets stored in the buffer (11), to be transmitted in order to reduce the number of the designated yet.
Claim 3
Dependent Claim
31 words
The packet switching device of claim 1 wherein the buffer (11) is provided with a head packet output means (112) which outputs the packet stored in the buffer (11) the longest.
Claim 4
Dependent Claim
45 words
The packet switching device of claim 2, wherein the buffer (11) is provided with a next candidate packet output means (113) which outputs, by means of the transmission control means (14,15), the packet stored in the buffer (11) the longest among the packets with priority.
Claim 5
Dependent Claim
48 words
The packet switching device of claim 1, wherein the buffer (11) is provided with an input register selection circuit (121) which detects the storage status of the registers (311-31n) making up the buffer (11), and stores the packet from an input communication channel (12) in a vacant register.
Claim 6
Dependent Claim
19 words
The packet switching device of claim 1 accommodating two input communication channels (12) and two output communication channels (13).
Claim 7
Dependent Claim
34 words
The packet switching device of claim 1 wherein the buffer (11) is provided with a plurality of registers (311-31n), and the packet is stored in a suitable vacant register together with the priority data.
Claim 8
Dependent Claim
28 words
The packet switching device of claim 1 wherein the packet is also stored in the register (311-31n) together with data which indicated the arrival order of the packet.
Claim 9
Dependent Claim
47 words
The packet switching device of claim 1 wherein the register (311-31n) comprises: a region which stores the priority data; a region which stores the arrival order data for the packet; and a region which stores data showing whether or not a packet is stored in the register.