Sony Corporation

Sony Group Corporation

Tomoya Oikawa

Kensaku Wakuda

Masato Kawada

Honggang Wang

Norio Kobota

Takashi Shoji

Kazunori Hayashi

Osamu Yoshimura

Junji Kato

Tomoaki Matsumura

Tadanori Kawamura

To prevent a decrease in transmission rate of an entirety of a system including devices that transmit data items with use of a plurality of channels ever, in a case where some of the channels change in condition, for example, decrease in transmission rate. In an information processing device including channel evaluation units, a channel selection unit, and a transmission control unit, the channel evaluation units evaluate, on the basis of an evaluation function, a plurality of channels that transmit data items via wireless communication. The channel selection unit performs selection from the plurality of channels on the basis of results of the evaluations. The transmission control unit transmits the data items to the plurality of channels subjected to the selection.

Information processing device, information processing system, and information processing method

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.

Communication apparatus, communication method, and communication system

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.

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.

Radio communication apparatus, radio communication method, communication control apparatus, and program

There is provided a transmission rate control method. In this method, data is transmitted to a receiver at the most recent transmission rate R, and an RTCP packet including a reception rate Rof 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 Ris higher than the reception rate R, a reception achievement rate Ris calculated as a long-term EWMA of the reception rate R. When the network is in the non-congestion state and the most recent reception achievement rate Ris lower than the reception rate R, or when a time-out of the RTCP packet occurs, the reception achievement rate Ris calculated as a short-term EWMA of the reception rate R. A transmission rate Ris set based on the reception achievement rate R.

Transmission rate control method and communication device

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.

Program guide providing system, program guide providing apparatus, program guide providing method, and program guide providing program

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.

Content providing system, monitoring server, and SIP proxy server

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.

Information reading apparatus and information reading method

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.

Growing community of inventors

Tokyo, Japan

Tomoya Oikawa