摘要:
There is provided a transmission rate control method. In this method, data is transmitted to a receiver at the most recent transmission rate RSNDt-1, and an RTCP packet including a reception rate RRCVt of the data is received from the receiver. When a network is in a congestion state, or when the network is in a non-congestion state and the most recent reception achievement rate RARt-1 is higher than the reception rate RRCVt, a reception achievement rate RARt is calculated as a long-term EWMA of the reception rate RRCV. When the network is in the non-congestion state and the most recent reception achievement rate RARt-1 is lower than the reception rate RRCVt, or when a time-out of the RTCP packet occurs, the reception achievement rate RARt is calculated as a short-term EWMA of the reception rate RRCV. A transmission rate RSNDt is set based on the reception achievement rate RARt.
摘要:
There is provided a transmission rate control method. In this method, data is transmitted to a receiver at the most recent transmission rate RSNDt−1, and an RTCP packet including a reception rate RRCVt of the data is received from the receiver. When a network is in a congestion state, or when the network is in a non-congestion state and the most recent reception achievement rate RARt−1 is higher than the reception rate RRCVt, a reception achievement rate RARt is calculated as a long-term EWMA of the reception rate RRCV. When the network is in the non-congestion state and the most recent reception achievement rate RARt−1 is lower than the reception rate RRCVt, or when a time-out of the RTCP packet occurs, the reception achievement rate RARt is calculated as a short-term EWMA of the reception rate RRCV. A transmission rate RSNDt is set based on the reception achievement rate RARt.
摘要:
A communication apparatus that receives, from a plurality of other communication apparatuses, information indicating communication quality of a multicast transmission transmitted from the communication apparatus to each of the plurality of other communication apparatuses, and controls a multicast transmission rate based on the information received from the plurality of other communication apparatuses.
摘要:
Disclosed are a cathode-ray tube dividing apparatus and a cathode-ray tube dividing method intended to simply and stably divide a cathode-ray tube in a shortened time. The dividing apparatus includes a positioning means for fixedly positioning the used cathode-ray tube at a specific location, and a cathode-ray tube heating means which is brought into contact with a specific portion on side surfaces of the cathode-ray tube for linearly heating the specific portions. The cathode-ray tube heating means includes linear heating members for imparting thermal strain to the side surfaces of the cathode-ray tube upon receiving a power, thereby dividing the cathode-ray tube into the panel portion and the funnel portion, and a power supply for supplying a heating power to the linear heating members. The power supply is adapted to supply a first power for generating cracks on the side surfaces of the cathode-ray tube to the linear heating members, and to supply, after generation of the cracks, a second power larger than the first power to the linear heating members.
摘要:
There is provided a radio communication apparatus including a detection unit to detect first redundant information indicating redundancy at a physical/MAC layer of radio communication, a communication control unit to determine a second redundancy at an upper layer from the layer based on the first redundant information detected by the detection unit, a packetizing unit to generate a data packet by packetizing transmission data, and a redundant encoding unit to add a redundant packet to the data packet generated by the packetizing unit based on the second redundancy determined by the communication control unit.
摘要:
A content providing system that provides content to a user terminal via a network includes a content providing server that is connected to the network and provides content, an SIP proxy server that is connected to the network and relays transmission and reception between the user terminal and the content providing server, and a monitoring server that is connected to the network and stores monitoring information regarding transmission and reception between the user terminal and the content providing server, the monitoring information being transmitted from the SIP proxy server.
摘要:
A communication apparatus that receives, from a plurality of other communication apparatuses, information indicating communication quality of a multicast transmission transmitted from the communication apparatus to each of the plurality of other communication apparatuses; and controls a multicast transmission rate to be lowered if a communication quality of a first one of the plurality of other communication apparatuses is less than a predetermined threshold and a communication quality of a second one of the other plurality of other communication apparatuses is greater than the predetermined value.
摘要:
A system and method for automatically displaying information from a designated information providing location and information from an associated information providing location. Information a designated information providing location is read from an automatic reading control section through a communication processing section. An information generation section discriminates an associated information providing location included in the read information, generates an automatic reading instruction list for designating a information providing location that reads the next information and stores the automatic reading instruction list in an information storage section. The automatic reading control section sequentially reads information from information providing locations according to the automatic reading instruction list. The information generation section discriminates the associated information providing location included in the read information and updates the automatic reading instruction list. The information read is supplied to and displayed on a display section.
摘要:
There is provided a radio communication apparatus including a detection unit to detect first redundant information indicating redundancy at a physical/MAC layer of radio communication, a communication control unit to determine a second redundancy at an upper layer from the layer based on the first redundant information detected by the detection unit, a packetizing unit to generate a data packet by packetizing transmission data, and a redundant encoding unit to add a redundant packet to the data packet generated by the packetizing unit based on the second redundancy determined by the communication control unit.
摘要:
Disclosed herein is a program guide providing system including: a terminal; a content providing server including a service providing section for providing programs and a related service to the terminal in response to a request from the terminal; a SIP proxy server; a program guide providing server including a communication history acquisition section for acquiring a communication history between the content providing server and the terminal, a communication history storage section, an audience situation calculation section for calculating an audience situation concerning each of the programs based on the communication history, a program guide generation section for generating a program guide in which each program is assigned an indicator based on the audience situation, and a program guide providing section for providing the program guide to the terminal; and an NGN to which the terminal, the content providing server, the SIP proxy server, and the program guide providing server are connected.