摘要:
An error correcting system uses an error location polynomial which is defined by double correction BCH codes each consisting of the elements of a Galois field GF(2.sup.m), and thereby generates error locations .sigma..sub.1 and .alpha..sup.2 and error patterns e.sub.1 and 2.sub.2. The system has a first data processing system for performing only addition and multiplication to generate the error locations .sigma..sub.1 and .alpha..sup.2, and a second data processing system for performing only addition and multiplication to generate the error patterns e.sub.1 and 2.sub.2. The first data processing system comprises a syndrome generator, a memory, an arithmetic logic unit, registers, latch circuits, registers, adder circuits and a zero detector. The second data processing system comprises a gate circuit, latch circuits, an arithmetic logic unit, and the registers of a memory.
摘要:
A safety shut-off valve opening a flow path between the primary and secondary sides in case of usual operation, while shutting off the aforesaid path in response to an emergency shut-off signal, and particularly such safety shut-off valve cannot be reset unitl it is confirmed that there is no more leakage of gas on the secondary side of the shut-off valve after the shut-off action was once effected, thereby to attaining a very high safeness.
摘要:
A flame detecting thermocouple for use with a gas valve to insure that the pilot flame exists before the gas valve can turn on the main burner. The thermocouple has a first rod shaped element which is composed of a high potential side thermoelectric material such as Chromel, Inconel, iron-chromium alloy and a second rod shaped element composed of a low potential side thermoelectric material formed of a 0.7 to 2% yttrium, 45-70% copper and the remainder of the alloy is nickel, and the elements are welded together at their ends to provide a junction which can be heated by a flame to produce a thermoelectric output at the other ends of the element.
摘要:
This invention provides a unit for an image display device in which an optical film laminate and a panel for an image display device are laminated with an adhesive layer therebetween. The optical film laminate contains a polarizer and a polarizer protection functional layer laminated to only one surface of the polarizer. The adhesive layer is laminated to the surface of the polarizer that is opposite to the surface that contacts the polarizer protection functional layer. The panel for an image display device is laminated to the surface of the adhesive layer that is opposite to the surface that contacts the polarizer. A glass transition temperature of the adhesive layer is in a range of from 50° C. to 90° C.
摘要:
Provided are: a polarizer protective film, which is allowed to express excellent UV-absorbing ability by using a UV-absorbing monomer as a raw material, has excellent heat resistance and excellent optical transparency, and has much less coloring and foaming; a polarizing plate with less defects in an outer appearance, using the polarizer protective film; and an image display apparatus of high quality, using the polarizing plate. The polarizer protective film of the present invention has a light transmittance at 380 nm in a thickness of 80 μm of 30% or less, and is obtained by molding a forming material that contains a resin component containing as a main component a (meth)acrylic resin obtained by polymerizing a monomer composition containing a UV-absorbing monomer and a (meth)acrylic monomer by extrusion molding.
摘要:
A basic data structure in a lead-in area is made coincident with each other in all of a read only type, write once type, and a rewritable type. The lead-in area is divided into a system lead-in area and a data lead-in area. A track pit and a pit pitch of pits in the system lead-in area are made longer than those in the data lead-in area. In the system lead-in area, a reproduction signal from a bit is detected in accordance with a Level Slice technique, and, in the data lead-in area and data area, a signal is detected in accordance with a PRML technique. In this manner, in any of the read only type, write once type, and rewritable type, there can be provided an information recording medium and an information reproducing apparatus or information recording and reproducing apparatus therefor, capable of a stable reproduction signal from a lead-in area of the write once type recording medium while maintaining format compatibility.
摘要:
A burst error-correcting capability is largely improved. At least the even-number row and at least the odd-number row of the data block which is a set of data sectors are separated. An outer parity is created for each column and an inner parity is created for each row. Then, the outer parity is scattered with respect to each of the sectors of the data block to be interleaved.
摘要:
A burst error-correcting capability is largely improved. At least the even-number row and at least the odd-number row of the data block which is a set of data sectors are separated. An outer parity is created for each column and an inner parity is created for each row. Then, the outer parity is scattered with respect to each of the sectors of the data block to be interleaved.
摘要:
A burst error-correcting capability is largely improved. At least the even-number row and at least the odd-number row of the data block which is a set of data sectors are separated. An outer parity is created for each column and an inner parity is created for each row. Then, the outer parity is scattered with respect to each of the sectors of the data block to be interleaved.
摘要:
A signal processing method multiplexes/arranges digital data of a specific unit to form a predetermined unit, adds an error correction code to the predetermined unit to constitute an error correction coded block, replaces a part of the error correction coded block with specific data, and outputs the error correction coded block with the specific data being replaced to a transmission medium or a recording medium.