1. A network communication node comprising:
a network communication module for receiving a predetermined number of packets from a predetermined corresponding node linked thereto through a network;
a memory for storing first information about a predetermined criterion for reception restriction and second information about packets which are restricted from being received when the criterion for reception restriction is satisfied; and
a controller for checking a packet receiving condition of the network communication module and determining whether the criterion for reception restriction is satisfied, and according to a result of the determination, controlling the restriction of the reception of the predetermined packets of the network communication module.
2. The network communication node as claimed in claim 1, further comprising an inputoutput interface for receiving a designation command from an external input device to designate the packet for reception restriction when the criterion for reception restriction is satisfied, wherein the controller records on the memory information about the designated packets.
3. The network communication node as claimed in claim 2, wherein the network communication module comprises:
a data transceiver for establishing a link to the corresponding node and receiving the packets through the link; and
a Media Access Control (MAC) address, if the packet receiving activity is controlled to be restricted, reading the second information from the memory, and storing in the memory receivable packets among the packets received through the data transceiver.
4. The network communication node as claimed in claim 3, wherein the criterion for reception restriction is determined by a reference capacity of the memory, and the controller determines that the criterion for reception restriction is satisfied if the received packets occupy in the memory more than the reference capacity, and sets the reception restriction.
5. The network communication node as claimed in claim 3, wherein the criterion for reception restriction is determined by an upper reference capacity and a lower reference capacity of the memory, and the controller sets the reception restriction if the received packets occupy more than the upper reference capacity in the memory, and allows the reception if the packets stored in the memory are processed and thus occupy less the lower reference capacity in the memory.
6. The network communication node as claimed in claim 1, wherein the controller determines whether to restrict the reception with respect to at least one of a broadcast packet, a multicast packet and a unicast packet.
7. A network printer comprises:
a data transceiver for receiving packets from a corresponding node connected to the network printer through a network;
an engine part for performing a printing according to a predetermined image data;
a controller for setting a reception restriction with respect to certain packets when detecting a packet congestion at the data transceiver during the printing; and
a Media Access Control (MAC) address, if the reception restriction is set, controlling the data transceiver to restrict the reception of the certain packets.
8. The network printer as claimed in claim 7, wherein the controller counts a number of packets received through the data transceiver per a time unit and compares the counted number with a predetermined threshold, and if the number of the received packets exceeds the threshold, confirms the packet congestion.
9. The network printer as claimed in claim 8, further comprising:
a first memory for storing packets received from the corresponding node; and
a second memory for storing information about packets for reception restriction when the packet congestion occurs, and information about the threshold.
10. The network printer as claimed in claim 9, wherein the controller periodically checks a packet receiving condition, and sets a reception restriction with respect to all of the packets when the packet congestion is determined to continue under the reception restriction condition.
11. The network printer as claimed in claim 10, wherein the controller converts a print data written in a print language into an image data by performing a rendering in every page, transmits the image data to the engine part to perform the printing, and, if the rendering with respect to each page is completed, allows the reception of all of packets prior to performing a rendering of the next page.
12. A data communication method of a network communication node which performs communication with a predetermined corresponding node linked thereto through a network, the method comprising the steps of:
(a) receiving a predetermined number of packets from the corresponding node at the network communication node;
(b) checking a packet receiving condition and determining whether a criterion for reception restriction is satisfied;
(c) if the criterion for reception restriction is satisfied, setting a reception restriction with respect to a pre-set packet; and
(d) restricting reception of the packets which the reception restriction is set on.
13. The data communication method as claimed in claim 12, further comprising the steps of:
determining which packet to restrict when the criterion for reception restriction is satisfied; and
if it is not determined which packet to restrict, determining which packet to restrict according to an initial setting condition of the network communication node.
14. The data communication method as claimed in claim 13, wherein the step of (c) uses a predetermined reference capacity of a memory provided in the network communication node as the criterion for reception restriction, and if a storage capacity of the received packets exceeds the reference capacity in the memory, determines that the criterion for reception restriction is satisfied.
15. The data communication method as claimed in claim 13, wherein the step of (c) uses a predetermined upper reference capacity and a lower reference capacity of a memory provided in the network communication node as the criterion for reception restriction, and if a storage capacity of the received packets exceeds the upper reference capacity in the memory, determines that the criterion for reception restriction is satisfied, and if the packets are processed and thus a storage capacity tin the memory is below the lower reference capacity, the step of (c) determines that the criterion for reception restriction is not satisfied and allows the reception.
16. A data receiving method of a network printer which receives packets from a corresponding node linked thereto through a network, the method comprising the steps of:
(a) receiving a predetermined print data from the corresponding node;
(b) converting the print data to a predetermined image data and printing the image data onto paper;
(c) checking a receiving condition of the packets received from the corresponding node during the printing;
(d) setting a reception restriction with respect to certain packets when the receiving condition is determined to be a packet congestion; and
(e) restricting the reception of the certain packet when the reception restriction is set.
17. The data receiving method as claimed in claim 16, wherein the step of (d) comprises the steps of:
counting a number of packets received from the corresponding node per a time unit;
comparing the number of packets received per a time unit with a predetermined threshold; and
if the number of packets exceeds the threshold, determining that the packet receiving condition is in a packet congestion.
18. The data receiving method as claimed in claim 17, further comprising the steps of:
periodically checking the packet receiving condition; and
setting a reception restriction with respect to all of the packets if it is determined that the packet congestion continues under the reception restriction condition.
19. The data receiving method as claimed in claim 18, further comprising the steps of:
if a print data written in a print language is received from the corresponding node, performing a rendering of converting the print data to a predetermined image data in every page; and
if the rendering is completed with respect to each page, allowing the reception of all of the packets prior to performing a rendering with respect to the next page.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A multi-media workstation comprising:
at least two substantially vertical frames;
a first rail extrusion mounted to said vertical frames and connecting said frames, said first rail extrusion including an upper surface, a lateral surface and a longitudinal slot formed in at least one of said upper and lateral surfaces;
a second rail extrusion having an upper surface, a lateral surface and a longitudinal slot formed in at least one of said upper and lateral surfaces, said second rail extrusion being mounted to said vertical frames and connecting said frames such that said upper surface of said second rail extrusion is disposed vertically lower than said upper surface of said first rail extrusion when said multi-media workstation is assembled;
a desktop unit having a finger engaged in said longitudinal slot of said first rail extrusion, wherein said desktop unit is able to be horizontally translated along a length of said first rail extrusion; and
a console box containing a video display therein, said console box having a finger engaged in said longitudinal slot of said second rail extrusion, wherein said console box is able to be horizontally translated along a length of said second extrusion.
2. A multi-media workstation as defined in claim 1, wherein said longitudinal slots in said first and second rail extrusions are T-shaped.
3. A multi-media workstation as defined in claim 1, wherein said console box comprises an enclosed structure and contains a video display selected from the group consisting of computers, computer monitors, television monitors and flat monitors, said enclosed structure being horizontally translatable along a length of said second rail extrusion.
4. A multi-media workstation as defined in claim 1, wherein said first rail extrusion includes longitudinal slots formed in both of said upper surface and said lateral surface.
5. A multi-media workstation as defined in claim 1, wherein said second rail extrusion includes longitudinal slots formed in both of said upper surface and said lateral surface.
6. A multi-media workstation as defined in claim 1, wherein said vertical frames have first and second upper mounting portions, said first rail extrusion being mounted to said first upper mounting portion of said vertical frames and said second rail extrusion being mounted to said second upper mounting portion of said vertical frames.
7. A multi-media workstation comprising:
at least two substantially vertical frames;
a first rail extrusion mounted to said vertical frames and connecting said frames, said first rail extrusion including an upper surface, a lateral surface and a longitudinal slot formed in at least one of said upper and lateral surfaces;
a second rail extrusion having an upper surface, a lateral surface and a longitudinal slot formed in at least one of said upper and lateral surfaces, said second rail extrusion being mounted to said vertical frames and connecting said frames such that said upper surface of said second rail extrusion is disposed vertically lower than said upper surface of said first rail extrusion when said multi-media workstation is assembled;
a desktop unit having a finger engaged in said longitudinal slot of said first rail extrusion, wherein said desktop unit is able to be horizontally translated along a length of said first rail extrusion; and
a console box for supporting a first piece of audiovisual equipment, said console box having a finger engaged in said longitudinal slot of said second rail extrusion, wherein said console box is able to be horizontally translated along a length of said second extrusion,
wherein said first rail extrusion includes longitudinal slots formed in both of said upper surface and said lateral surface, and
wherein said desktop unit is engaged in said longitudinal slot formed in said lateral surface of said first rail extrusion, and wherein said workstation further comprises a vertical support stand for supporting a second piece of audiovisual equipment, said vertical support stand being engaged in said longitudinal slot formed in said upper surface of said first rail extrusion.
8. A multi-media workstation as defined in claim 7, wherein said vertical support stand is adapted to support a video monitor.
9. A multi-media workstation comprising:
at least two substantially vertical frames;
a first rail extrusion mounted to said vertical frames and connecting said frames, said first rail extrusion including an upper surface, a lateral surface and a longitudinal slot formed in at least one of said upper and lateral surfaces;
a second rail extrusion having an upper surface, a lateral surface and a longitudinal slot formed in at least one of said upper and lateral surfaces, said second rail extrusion being mounted to said vertical frames and connecting said frames such that said upper surface of said second rail extrusion is disposed vertically lower than said upper surface of said first rail extrusion when said multi-media workstation is assembled;
a desktop unit having a finger engaged in said longitudinal slot of said first rail extrusion, wherein said desktop unit is able to be horizontally translated along a length of said first rail extrusion; and
a console box for supporting a first piece of audiovisual equipment, said console box having a finger engaged in said longitudinal slot of said second rail extrusion, wherein said console box is able to be horizontally translated along a length of said second extrusion,
wherein said second rail extrusion includes longitudinal slots formed in both of said upper surface and said lateral surface, and
wherein said console box is engaged in said longitudinal slot formed in said lateral surface of said second rail extrusion, and wherein said workstation further comprises a vertical support stand for supporting a second piece of audiovisual equipment, said vertical support stand being engaged in said longitudinal slot formed in said upper surface of said second rail extrusion.
10. A multi-media workstation as defined in claim 9, wherein said vertical support stand is adapted to support a video monitor.
11. A multi-media workstation comprising:
at least two substantially vertical frames;
a first rail extrusion mounted to said vertical frames and connecting said frames, said first rail extrusion including an upper surface, a lateral surface and a longitudinal slot formed in at least one of said upper and lateral surfaces;
a second rail extrusion having an upper surface, a lateral surface and a longitudinal slot formed in at least one of said upper and lateral surfaces, said second rail extrusion being mounted to said vertical frames and connecting said frames such that said upper surface of said second rail extrusion is disposed vertically lower than said upper surface of said first rail extrusion when said multi-media workstation is assembled;
a desktop unit having a finger engaged in said longitudinal slot of said first rail extrusion, wherein said desktop unit is able to be horizontally translated along a length of said first rail extrusion; and
a console box for supporting a first piece of audiovisual equipment, said console box having a finger engaged in said longitudinal slot of said second rail extrusion, wherein said console box is able to be horizontally translated along a length of said second extrusion,
wherein said second rail extrusion includes longitudinal slots formed in both of said upper surface and said lateral surface, and
wherein said second rail extrusion is square in cross-section and includes T-shaped longitudinal slots formed on each side of said second rail extrusion.
12. A multi-media workstation as defined in claim 1, further comprising a bracket assembly connected between said first and second rail extrusions.
13. A multi-media workstation comprising:
at least two substantially vertical frames;
a first rail extrusion mounted to said vertical frames and connecting said frames, said first rail extrusion including an upper surface, a lateral surface and a longitudinal slot formed in at least one of said upper and lateral surfaces;
a second rail extrusion having an upper surface, a lateral surface and a longitudinal slot formed in at least one of said upper and lateral surfaces, said second rail extrusion being mounted to said vertical frames and connecting said frames such that said upper surface of said second rail extrusion is disposed vertically lower than said upper surface of said first rail extrusion when said multi-media workstation is assembled;
a desktop unit having a finger engaged in said longitudinal slot of said first rail extrusion, wherein said desktop unit is able to be horizontally translated along a length of said first rail extrusion;
a console box for supporting a first piece of audiovisual equipment, said console box having a finger engaged in said longitudinal slot of said second rail extrusion, wherein said console box is able to be horizontally translated along a length of said second; and
a bracket assembly connected between said first and second rail extrusions, wherein said bracket assembly comprises a flat panel extending between said first and second rail extrusions and at least one bracket for supporting said flat panel.
14. A multi-media workstation as defined in claim 13, wherein said flat panel encloses a cavity between said first rail extrusion, said second rail extrusion and said vertical frames for containing electrical wiring for said workstation therein.
15. A multi-media workstation comprising:
at least two substantially vertical frames;
a rail extrusion mounted to said mounting surface of said vertical frames and connecting said frames, said rail extrusion including a first portion having an upper surface, a lateral surface and a longitudinal slot formed in at least one of said upper and lateral surfaces and a second portion having an upper surface, a lateral surface and a longitudinal slot formed in at least one of said upper and lateral surfaces, said upper surface of said second portion being formed such that it is disposed vertically lower than said upper surface of said first portion when said multi-media workstation is assembled;
a desktop unit having a finger engaged in said longitudinal slot of said first portion of said rail extrusion, wherein said desktop unit is able to be horizontally translated along a length of said first portion of said rail extrusion; and
a console box for supporting a first piece of audiovisual equipment, said console box having a finger engaged in said longitudinal slot of said second portion of said rail extrusion, wherein said console box is able to be horizontally translated along a length of said second portion of said rail extrusion.
16. A multi-media workstation as defined in claim 15, wherein said longitudinal slots in said first and second portions of said extrusion are T-shaped.
17. A multi-media workstation as defined in claim 15, wherein said first portion of said extrusion includes longitudinal slots formed in both of said upper surface and said lateral surface.
18. A multi-media workstation as defined in claim 17, wherein said desktop unit is engaged in said longitudinal slot formed in said lateral surface of said first extrusion portion, and wherein said workstation further comprises a vertical support stand for supporting a second piece of audiovisual equipment, said vertical support stand being engaged in said longitudinal slot formed in said upper surface of said first extrusion portion.
19. A multi-media workstation as defined in claim 15, wherein said second portion of said extrusion includes longitudinal slots formed in both of said upper surface and said lateral surface.
20. A multi-media workstation as defined in claim 19, wherein said console box is engaged in said longitudinal slot formed in said lateral surface of said second extrusion portion, and wherein said workstation further comprises a vertical support stand for supporting a second piece of audiovisual equipment, said vertical support stand being engaged in said longitudinal slot formed in said upper surface of said second extrusion portion.