摘要:
A transmitting system includes an Internet connecting unit, directly or indirectly connected with the Internet, which allows a plurality of communication units to perform communication through the Internet, and a media converter, connected with the Internet connecting unit by the first transmission medium, which converts a signal from the first transmission medium into a signal to a second transmission medium, converts a signal from the second transmission medium into a signal to the first transmission medium, and has a function of linking to the communication units. The transmitting system also includes a signal distributor, connected with the media converter and each of the plurality of communication units by the second transmission medium, which distributes a signal from the media converter and transfers the signal to the communication units, and transfers a signal from the communication units to the media converter.
摘要:
The present invention provides a TV terminal embedded communication apparatus, which has a shape compliant with predetermined existing standard dimensions of a type of TV terminal set on a wall surface, including a TV antenna terminal connectable to a TV antenna terminal of an existing TV terminal connected to a coaxial cable connected to a TV antenna, a communication connector terminal, a coaxial communication processing function section connected to the TV antenna terminal and having a coaxial communication function, a connector communication processing function section connected to the communication connector terminal and having a communication connector communication processing function and a data transfer function section that transfers data between the coaxial communication processing function section and the connector communication processing function section, and can construct a high-speed home network without removing the existing TV antenna terminal.
摘要:
A communication system includes communication devices; a switch device having coaxial terminal units to which the communication device are connected, a switch unit of entirely or individually connecting the coaxial terminal units, and a switch control unit of controlling the connection status of the switch unit; and a transmittal right control device. The transmittal right control device is connected to the terminal, and manages the connection status of the switch unit, receives from the communication devices requests for time for communication with other communication devices, determines assignment of time for communications between the communication devices, notifies the communication devices of the assignment, and instructs the switch control unit not to make signals interfere among the communication devices in different combinations for communications in the same time period.
摘要:
If trouble or the like occurs in a central device or repeater in an Internet system, and the device becomes unable to operate normally, a link between each terminal and the central device may become invalid, and communication between terminals may become impossible. A transmitting system including an Internet connecting unit, directly or indirectly connected with the Internet, which allows a plurality of communication units to perform communication through the Internet, a media converter, connected with the Internet connecting unit by the first transmission medium, which converts a signal from the first transmission medium into a signal to a second transmission medium, converts a signal from the second transmission medium into a signal to the first transmission medium, and has a function of linking to the communication units, and a signal distributor, connected with the media converter and each of the plurality of communication units by the second transmission medium, which distributes a signal from the media converter and transfers the signal to the communication units, and transfers a signal from the communication units to the media converter.
摘要:
A communication system includes communication devices; a switch device having coaxial terminal units to which the communication device are connected, a switch unit of entirely or individually connecting the coaxial terminal units, and a switch control unit of controlling the connection status of the switch unit; and a transmittal right control device. The transmittal right control device is connected to the terminal, and manages the connection status of the switch unit, receives from the communication devices requests for time for communication with other communication devices, determines assignment of time for communications between the communication devices, notifies the communication devices of the assignment, and instructs the switch control unit not to make signals interfere among the communication devices in different combinations for communications in the same time period.
摘要:
A repeating installation includes transmission speed detection units which detect respective transmission speeds of a plurality of transmission lines connected to a plurality of communication apparatuses, a transmission speed determination unit which determines the slowest transmission speed among the detected transmission speeds of respective transmission lines as a reference transmission speed, a transmission speed adjusting unit which adjusts a transmission speed of a transmission line, whose detected transmission speed is faster than the reference transmission speed, so as to become a speed equal to or slower than the reference transmission speed, and the like.
摘要:
A video receiving system has one main-contract video receiver and at least one sub-contract video receiver connected to the main-contract video receiver via a network.The sub-contract video receiver has a) a video reception control unit which, when a video reception tuner unit receives a video signal, allows the video reception tuner unit to receive the video signal of a limited predetermined channel if a network connection detecting unit detects an unestablished connection with the main-contract video receiver; and b) a display signal output unit which outputs a display signal corresponding to the video signal received by the video reception tuner unit.
摘要:
In the case where one set of EDCA access parameters is set, there are problems such as failure in performing QoS when a transmission rate is changed and a deterioration in transmission efficiency.A relay device is a wireless communication device which transmits received data according to a priority level of the data, including: a transmitting unit (11) which transmits received data; a rate measuring unit (12) which measures a rate at which the transmitting unit (11) transmits the data; and a transmission control unit (14) which adaptively controls a transmission waiting time for which the transmitting unit (11) waits until start of the transmission of the data, according to the transmission rate of the transmitting unit (11) which is measured by the rate measuring unit (12), wherein the transmitting unit (11) transmits the data according to transmission control by the transmission control unit (14).
摘要:
A plurality of directional patterns are classified into groups and stored in a directional pattern memory, such that among the plurality of directional patterns, the directional patterns strongly correlated with each other are classified into the same group, while the directional patterns weakly correlated with each other are classified into the different groups. One directional pattern is selected from each group in the directional pattern memory. One directional pattern is determined from the selected directional patterns, in accordance with a communication quality of signals each received when each one of the selected directional patterns is set for steerable antenna element. The determined directional pattern is set for the steerable antenna element.
摘要:
A first wireless communication apparatus acquires communication qualities of a first communication path, a second communication path and a direct communication path, respectively, adopts as a communication quality of an indirect communication path a lower communication qualities selected from the communication qualities of the first and second communication paths, and selects a communication path having a higher one of a communication performance corresponding to the direct communication path and a communication performance corresponding to the indirect communication path.