Matsushita Electric Industrial Co., Ltd.

Michinori Masuda

Taku Matsuda

Sozo Yamamoto

Tetsuya Wada

Shunichi Takeuchi

Yoshikane Nishikawa

An informational outlet has an outlet frame body having a wiring holder for connecting the informational wiring installed in a wall face; and an information exchange section having the first connector provided in the room side for connecting the informational wiring of an informational terminal, and for performing the transit, exchange, or processing of information between the informational wiring in the wall face and said informational wiring of said informational terminal.

Informational outlet and lines collection module

A data sending/receiving system with which a data user receives data provided through a data provider by a data receiving apparatus via one of a computer network line and a broadcasting, has a construction where a provider that provides data via a broadcasting, broadcasts (i) as to a data provided via a broadcasting, information about a broadcast channel and a broadcast time of the data related to its identifier, as additional information, and (ii) as to a data provided via a computer network line, a description of a location of the data related to the identifier, on a computer network; and a provider that provides data via a computer network line sends on a computer network line (iii) as to a data provided via a computer network line, a description of a location of the data related to its identifier on a computer network line, and (vi) as to a data provided via a broadcasting, information about the provider of the data. Thus data users can obtain data efficiently by utilizing a plurality of transfer media differ in type, and data providers can utilize transfer media efficiently.

Data sending/receiving system, data broadcasting method and data

A variable length data transmission apparatus is provided which includes a transmitter and a receiver. The transmitter splits input variable length data into first code blocks having a block length k to convert them into a plurality of first error-correcting codes having a code length n and including k information symbols. When a data length of the variable length data is not a multiple of the block length k, the transmitter converts part of the variable length data which should be protected from errors with a higher degree of priority into a code block having a length shorter than the block length k and adds dummy bits to the second code block to convert the dummy bit-added second code block into a second error-correcting code, after which the dummy bits are removed from the second error-correcting code to provide a third error-correcting code. The receiver splits a code sequence transmitted from the transmitter into the first and third error-correcting codes for correcting errors arising in the first and third error-correcting codes. The receiver adds the same dummy bits as used in the transmitter to the third error-correcting code to correct the errors in the third error-correcting code, after which the dummy bits are removed from the third error-correcting code.

Growing community of inventors

Osaka, Japan

Michinori Masuda