摘要:
A digital signal processing method comprising the steps of: (a) composing, a plurality of first encoded video data and a plurality of second encoded video data; (b) dividing, each of high quality M bits audio channel into audio data of upper L bits and audio data of lower M-L bits; (c) composing a plurality of first basic data and a plurality of second basic data, wherein each of the first basic data have respective audio data of upper “L” bits, and wherein the second basic data have respective audio data of audio data of lower “M-L”; and (d) transmitting the first basic data in a first data bus, and the second basic data in a second data bus.
摘要:
A reproduced signal processor comprising sync block detecting means (100), data information generating means (106), first memory means (105), memory writing means (104), memory reading means (109) for parallel reading data of n frames (n is an integer of 2 or more satisfying α
摘要:
A digital video cassette recorder reproduces signals which have been compressed to digital data and recorded in predetermined M tracks (M≧1) with helical scan in the unit of page consisting of N frames (N≧1). Further, position data have been added to the digital data on recording. On reproduction, the position data are detected to determine which reproduction position is reproduced, and a control signal to designate a field to be output is generated by observing the reproduction position during a frame period. A first storage device stores decoded data in the unit of N frames, while a second storage device delays the data a time of one field. By observing the reproduction situation with the position data, a memory controller controls reading from the first storage device according to the control signal, while a switch selects data to be output between data from the first storage device and data from the second storage device according to the control signal.
摘要:
A granule of a compound comprising a nitrate or nitrite, wherein a part of the body of the granule has a protrusion, and an aggregate of the granules.
摘要:
A process for preparing a .beta.-lactam derivative of formula (2) and/or the corresponding enol tautomer, which includes oxidizing an alkenyl-substituted .beta.-lactam derivative of formula (1) in the presence of a ruthenium catalyst or a rhenium catalyst using a periodic acid: ##STR1## wherein R.sup.1 is a hydrogen atom, a C.sub.1-4 alkyl group or a C.sub.1-4 haloalkyl group, R.sup.2 is a hydrogen atom, a C.sub.1-4 alkyl group or a phenyl group which may have a substituent, A is a group selected from ##STR2## wherein R.sup.3 is an amino group or a protected amino group, and R.sup.4 -R.sup.8 are as defined in the application.
摘要:
The present invention has an object to provide a flame-retardant epoxy resin composition excellent in heat resistance and moisture resistance. A flame-retardant epoxy resin composition relating to the present invention contains an epoxy resin (A), a phosphazene compound (B), an epoxy hardener (C) and an inorganic filler (D), wherein the phosphazene compound (B) and the epoxy hardener (C) are included in the range of 0.01 to 70% by weight and in the range of 0 to 70% by weight, respectively, relative to a total quantity of the epoxy resin (A), the phosphazene compound (B) and the epoxy hardener (C), and the inorganic filler (D) is included in the range of 0 to 95% by weight relative to a total quantity of the epoxy resin (A), the phosphazene compound (B), the epoxy hardener (C) and the inorganic filler (D), wherein the phosphazene compound (B) is at least one selected from the group consisting of (1) a cyclic and/or a chain phosphazene compound with a specific structure, (2) a polymer of the cyclic and/or the chain phosphazene compound; and (3) a reaction product of the cyclic and/or the chain phosphazene compound with one type of a compound selected from the group consisting of an epoxy compound, a phenol compound, an amine compound and an acid anhydride.
摘要:
The present invention provides a thiazolinoazetidinone derivative represented by the formula ##STR1## wherein R.sup.1 is phenyl having or not having substituent(s), methyl having or not having substituent(s) or ##STR2## group, R.sup.3 being phenyl having or not having substituent(s), and R.sup.2 is a hydrogen atom or carboxylic acid protective group, and a process for preparing the same.The present invention further provides a process for preparing a 2-exo-methylenepenam derivative characterized by hydrolyzing the thiazoline ring of a thiazolinoazetidinone derivative of the above formula (1) to effect recyclization and obtain a 2-exo-methylenepenam derivative represented by the formula ##STR3## wherein R.sup.1 and R.sup.2 are as defined above.
摘要:
Disclosed is a method of producing a 3-exomethylenecepham of the formula ##STR1## wherein R.sup.1 is amino or substituted amino and R.sup.2 is a carboxy-protecting group comprising reacting a cephem of the formula ##STR2## wherein R.sup.1 and R.sup.2 are as defined above and X is halogen with lead metal while maintaining the pH of the reaction system at about 0.1 to 8. The cephem (I) may be reacted with a catalytic amount of lead metal or a lead compound in the presence of a metal having a greater ionization tendency than lead.
摘要:
The present invention provides a process for preparing a 1,1-disubstituted ethylene derivative of the formula ##STR1## which comprises reacting lead with a carbinol derivative of the formula ##STR2## wherein R.sup.1, R.sup.2, R.sup.3, X, Y, m and n are defined in the specification. The reaction is conducted more advantageously in the presence of a metal having higher ionization tendency than lead.
摘要:
Hydrazine supply device (1) includes hydrazine fixing bath (2) which releasably fixes hydrazine and water/alkali, tank (3) for supplying water or an alkaline aqueous solution so as to release the hydrazine fixed in the hydrazine fixing bath (2), thereby achieving stable storage and supply of hydrazine. Thus, the device can be widely used in various industrial fields requiring the supply of hydrazine. Further, each of fuel cell system (10) and vehicle (14) comprises the hydrazine supply device (1) and fuel cell (13), thereby achieving safe utilization of hydrazine as fuel and reduction of burdens on the environmental load.