Abstract:
A communication device includes a storage medium for storing a program and information used to detect any error in the program, to prevent the communication device from further abnormal operation when an error occurs in the stored program. The occurrence of an error in the program is detected by performing a calculation based on the stored program, and comparing the result of the calculation with the above-described information stored in the storage medium. A predetermined operation is further performed depending on the result of the comparison.
Abstract:
A facsimile apparatus capable of executing a first protocol for identifying a modem type includes a unit for determining, on the basis of a signal received in accordance with the first protocol, whether polling reception is to be performed, and a unit for transmitting a digital transmission command signal according to a T.30 protocol in accordance with determination by the determination unit.
Abstract:
In a data communication apparatus, the baud rate and the bit rate of a modem thereof are set independently of each other according to the condition of data communication. Thus, optimum data communication suited to the line condition can be performed.
Abstract:
A facsimile apparatus determines whether a frame to be transmitted is an image block or an error retransmission frame, and transmits a short training sequence or a long training sequence based on the results of the determination. The long training sequence is sent if a TCF signal is transmitted and the short training sequence is sent if the image block is transmitted. If the facsimile apparatus is on the receiving side, a training sequence in accordance with the frame from the transmitting side is received. After a carrier signal is detected, the apparatus then makes a transition to a mode for receiving the TCF signal or image block.
Abstract:
A single indicator in a facsimile apparatus time-sharingly indicates a plurality of kinds of information associated with the distant side of communication or indicates that the communication is being performed, thereby increasing an amount of information to be indicated and simplifying the indicator, then leading to a miniaturization of the apparatus.
Abstract:
There is provided a filament of improved light transmission having a sheath-core composite structure formed of a methyl methacrylate polymer core material and a fluorine-containing polymer sheath material. The light transmitting filament is characterized in that the methyl methacrylate polymer core material is prepared by the specific procedure of continuous bulk polymerization and subsequent removal of volatile contents, wherein the polymerization is performed in a continuously and thoroughly stirred reaction vessel at a low catalyst concentration and a relatively high temperature and with improved conversion. The light transmitting filament possesses an absorption coefficient (k) of no greater than 6 .times. 10.sup.-.sup.3 cm.sup.-.sup.1.
Abstract translation:提供了具有由甲基丙烯酸甲酯聚合物芯材料和含氟聚合物护套材料形成的皮芯复合结构的改进的透光性的灯丝。 透光丝的特征在于甲基丙烯酸甲酯聚合物芯材料通过连续本体聚合的特定方法制备,随后除去挥发性成分,其中聚合在低催化剂浓度下在连续和彻底搅拌的反应容器中进行, 相对较高的温度和改善的转化率。 透光丝具有不大于6×10 -3 cm -1的吸收系数(k)。
Abstract:
A process of producing methyl methacrylate polymers is provided wherein the monomer are polymerized by a bulk polymerization procedure at 150.degree. to 180.degree.C with a conversion of 50 to 80% and the volatiles predominantly comprised of the unreacted monomer, separated from the polymer product, are cyclically reused as a part of the monomer feed for polymerization. In such a monomer feed cycle system, oligomers are substantially removed from the volatiles and then the volatiles are blended with a virgin monomer feed for polymerization, the content in the volatiles of impurities having boiling points of lower than 200.degree.C at normal pressure is maintained within the range of 5 to 20% by weight.
Abstract:
The present invention provides a powder for a magnet which can form a rare earth magnet having excellent magnetic characteristics and which has excellent moldability, a method for producing the powder for a magnet, a powder compact, and a rare earth-iron-boron-based alloy material.
Abstract:
The invention offers a method for producing a soft magnetic material. The method effectively produces a soft magnetic material having soft magnetic metallic particles each coated with a plurality of insulating layers. A soft magnetic material to be used as the material for a dust core is produced through the following steps: a step of preparing a material powder having composite magnetic particles produced by forming an insulating film containing hydrated water on each of the surfaces of soft magnetic metallic particles, a step of preparing a resin material containing silicone that cures through a hydrolysis-polycondensation reaction, and a step of mixing the material powder and the resin material in a heated atmosphere at 80° C. to 150° C. to form a silicone film on the surface of the insulating film.
Abstract:
Metal nanoink for bonding an electrode of a semiconductor die and an electrode of a substrate and/or bonding an electrode of a semiconductor die and an electrode of another semiconductor die by sintering under pressure is produced by injecting oxygen into an organic solvent in the form of oxygen nanobubbles or oxygen bubbles either before or after metal nanoparticles whose surfaces are coated with a dispersant are mixed into the organic solvent. Bumps are formed on the electrode of the semiconductor die and the electrode of the substrate by ejecting microdroplets of the metal nanoink onto the electrodes, the semiconductor die is turned upside down and overlapped in alignment over the substrate, and then, the metal nanoparticles of the bumps are sintered under pressure by pressing and heating the bumps between the electrodes. As a result, generation of voids during sintering under pressure is minimized.