Abstract: An object of the present invention is to provide an optical transmission system capable of controlling a transmission capacity and a signal processing load of a MIMO equalizer, without depending on the number of propagation modes of the optical fiber.

Abstract: There is provided a Group III nitride semiconductor light-emitting device exhibiting improved crystallinity while suppressing abnormal growth of semiconductor layer due to pits and a production method therefor. In forming an n-side electrostatic breakdown preventing layer, pits are generated from the n-side electrostatic breakdown preventing layer. In forming an n-side superlattice layer, the layer is formed by alternately depositing a first InGaN layer and a GaN layer having an In composition ratio lower than that of the first InGaN layer, so that the In composition ratio and the total thickness of the first InGaN layers satisfy the following equation: 0<Y?180X+22, 0<X?0.1, X: In composition ratio of InGaN layers, and Y: Total thickness of InGaN layers (nm).

Abstract: There is provided a Group III nitride semiconductor light-emitting device exhibiting improved crystallinity while suppressing abnormal growth of semiconductor layer due to pits and a production method therefor. In forming an n-side electrostatic breakdown preventing layer, pits are generated from the n-side electrostatic breakdown preventing layer. In forming an n-side superlattice layer, the layer is formed by alternately depositing a first InGaN layer and a GaN layer having an In composition ratio lower than that of the first InGaN layer, so that the In composition ratio and the total thickness of the first InGaN layers satisfy the following equation: 0<Y 180X+22, 0<X 0.1, X: In composition ratio of InGaN layers, and Y: Total thickness of InGaN layers (nm).

Abstract: A facsimile system having a terminal and a main body. The terminal reads an image and sends the read image to the main body, and the main body transmits the image data received from the terminal through a communication line. The terminal includes a processing instructing unit for instructing processing of the read image at the main body; a first storage unit for storing an identification code specifically assigned to the terminal; and a sending unit for sending to the main body the image data, the instruction data instructed by the processing instructing unit, and the identification code stored in the first storage unit. The main body includes a receiving unit for receiving the data sent by the sending unit; a detecting unit for detecting the identification code from the data received by the receiving unit; and a processing unit for processing the image data received by the receiving unit based on a result of the detection made by the detecting unit.

Abstract: A facsimile/electronic-mail transforming system comprises a host unit linked through a network (LAN) to a plurality of other terminals as destinations of E-mails, and a facsimile unit connected directly to the host unit and also connected to the public telephone line. Other terminals outside the LAN sends E-mails through the public telephone line to the facsimile unit, which works as a gateway so that the E-mails are delivered to intended terminals on the LAN. When an originating terminal sends mail information, with destination indicating information being appended thereto, to the facsimile unit through the public telephone line, the information is received by the line controller and transferred through the interface to the host unit. In the host unit, the transferred information is received through the interface and saved in the storage.

Abstract: A linear light source is disposed adjacent to the side face of a transparent light conducting plate. The thickness of the light conducting plate decreases as the position goes away from the light source. Light diffusing elements are formed on the major surface of the light conducting plate opposite to its light exit surface. At least one transparent sheet has, on the same surface thereof, a number of prisms having straight ridges that are arranged substantially parallel with each other at small intervals. The transparent sheet is disposed on the side of the light exit surface of the light conducting plate so that extensions of the straight ridges intersect the light source substantially perpendicularly.

Abstract: This invention relates to a composite of silicon carbide and carbon. This invention also relates to its manufacturing method. An obtained composite is used as heat resistant, wear resistant or chemical resistant materials. The object of this manufacturing method is to form a deep layer of silicon carbide and carbon in the surface of a carbon base by a simple process of causing a silicon containing material to penetrate into and react with the carbon block. Further object of this invention is to produce a compound in whole comprised of silicon carbide and carbon if the carbon block is 20 mm or below in thickness. To this end, according to this forming method a carbon block having a lattice constant c of 6.708 .ANG. to 6.900 .ANG. or below and a density of 1.3 g/cm.sup.3 to 1.7 g/cm.sup.

Abstract: A facsimile machine for facsimile communication with another facsimile machine comprises a host machine including processor for processing data; at least one handy-scanner provided separately from the host machine, for scanning an original document, the handy-scanner including reader for reading image data from the original document, and first transmitter for transmitting the image data read by the reader; and at least one relay station for relaying data signals between the host machine and the handy-scanner, the relay station including second transmitter for transmitting the data received from the first transmitter of the handy-scanner to the host machine, and a buffer memory for temporarily storing the image data before the second transmitter transmits the image data to the host machine, the host machine processing the image data transmitted by the second transmitter.