摘要:
A receiver having a function of a direct current offset, and including a receiving section for receiving a radio frequency signal, an analog signal processing section for amplifying, band-converting and frequency-converting an analog signal inputted from the receiving section, and an AD converting section for converting an output of the analog signal processing section from an analog signal to a digital signal. Also included is a digital signal processing section for processing the digital signal converted by the DC converting section. The receiver further includes an offset detecting element, provided in the digital signal processing section, for detecting a direct current offset signal produced in the receiving section or a frequency converting section, an offset holding element, provided in the digital signal processing section, for holding the direct current offset signal detected by the offset detecting element, a DA converting section for converting the direct current offset signal detected by the digital signal processing section into an analog signal, and a first offset correcting element, provided in the analog signal processing section, for correcting the analog signal on the basis of the direct current offset signal converted by the DA converting section into the analog signal.
摘要:
To present a material for stamper free from deterioration of stamper quality due to reaction with an electron-attracting radical contained in the resist material. An electrode formed on the surface of a patterned resist film 2 for electrocasting a stamper material is formed of a nickel alloy thin film 3 comprising Ni element as a principal component, and Ru element added in a range of less than 25 percent by weight.
摘要:
There is disclosed an optical data storage medium in which the weather resistance of the semitransparent reflective film is improved and the adhesive property between the semitransparent reflective film and a substrate is enhanced, and which has a higher reliability. In an optical data storage medium (6), on the side on which a reproduction light (8) is incident, a first information layer (9) is located while on the side opposite to the side on which the reproduction light (8) is incident, a second information layer (10) is located. A semitransparent reflective film (3) of first information layer (9) is AgPdCu alloy thin films containing 0.5 to 3.0 weight % Pd and 0.1 to 3.0 weight % Cu or AgPdTi alloy thin films containing 0.5 to 3.0 weight % Pd and 0.1 to 3.0 weight % Ti. At the wavelength 650 nm, the optimum film thickness of AgPdCu alloy thin film is 5 to 18 nm and the optimum film thickness of AgPdTi alloy thin film is 10 to 25 nm. At the wavelength 450 nm, the optimum film thickness of AgPdCu alloy thin film is 10 to 25 nm, and the optimum film thickness of AgPdTi alloy thin film is 15 to 25 nm.
摘要:
To provide Nsp7524V restriction-modification genes and a method for producing Nsp7524V restriction enzyme and Nsp7524V modification enzyme by using a novel microorganism having, introduced thereinto, plasmids containing said genes.Nsp7524V restriction-modification genes. A method for producing Nsp7524V restriction enzyme and/or Nsp7524V modification enzyme which comprises incubating a microorganism carrying a plasmid having, integrated thereinto, Nsp7524V restriction-modification genes, and recovering the Nsp7524V restriction enzyme and/or Nsp7524V modification enzyme thus produced from the culture.It becomes possible to efficiently produce Nsp7524V restriction enzyme and/or Nsp7524V modification enzyme which are useful in the field of genetic engineering.
摘要:
An apparatus for analyzing control data for finding a cause of a trouble produced in a device controlled with a plurality of controlled variables. The apparatus includes sensors sensitive to a condition of the device for producing signals indicative of parameters reflective of the sensed condition. The parameter indicative signals are fed to a control circuit which calculates a valve corresponding to a setting of each of the controlled variables from a desired relationship. The calculated values are stored in time sequence along with the corresponding values of the parameter indicative signals. The stored values are transferred from the first memory to a second memory upon occurrence of a command signal indicating a trouble produced in the device. The transfer values are analyzed to find a cause of the trouble.
摘要:
A method of and an apparatus for controlling supercharge pressure in which a preset supercharge pressure is increased when an acceleration condition is determined or detected and the actual supercharge pressure can be feedback-controlled to a new target supercharge pressure in the acceleration condition through an electromagnetic valve and an actuator by a control signal from an electronic control unit including a microprocessor, in accordance with the detected parameters such as supercharge pressure, intake air flow rate. Any control errors brought about by variations in parts, such as diaphragm variations and variations during assembly of the exhaust bypass valve, as well as changes in engine performance with time, can be eliminated.
摘要:
A method and apparatus is disclosed for controlling the supercharging pressure in a turbocharger to obtain sufficient turbocharging even in low speed operating ranges. The supercharging pressure is regulated by a variable geometry means and an exhaust bypass valve means, which in turn are responsive to control means which receive feedback correction. The feedback correction is based on calculated controlled variables. Optimum control of the supercharging pressure is accomplished by finding a learning amount based on the feedback correction which in turn is used to modify the calculated control variables.
摘要:
A method of and an apparatus for controlling supercharge pressure for a turbocharger, which perform the functions of detecting an acceleration condition from operating conditions of the engine, calculating and performing a feedback control using a capacity changing means when actual supercharge pressure reaches a first predetermined value after the acceleration condition has been determined, starting a correction of a control amount for the capacity changing means in the acceleration condition, and for increasing a first target value of the supercharge pressure when a predetermined time passes after the actual supercharge pressure reaches a second target value.