摘要:
In an information signal reproducing apparatus having a reproducing head for reproducing information signals from recording tracks formed on a record bearing medium and a shifting device for shifting the reproducing head athwart the tracks, the shifting device is arranged to be operatable in a first operating mode in which the reproducing head is shifted to a predetermined extent for every first predetermined period and also in a second operating mode in which the reproducing head is shifted to the predetermined extent for every second predetermined period which is longer than the first period. The shifting device is controlled not on the basis of the output of the reproducing head in the first mode but on the basis of the output of the reproducing head in the second mode.
摘要:
A curable organopolysiloxane composition comprising:(A) an organopolysiloxane having at least two aliphatic unsaturated hydrocarbon groups,(B) a particular organohydrogenpolysiloxane having a group represented by the formula: ##STR1## wherein R.sup.3 is a substituted or unsubstituted monovalent hydrocarbon group and a is an integer of 2 or 3, and(C) a platinum catalyst.This composition has good curing properties, and the silicone film obtained by curing has good release properties which is stable for a long period of time.
摘要:
An erasing device includes a magnetic head, a drive motor for rotating a magnetic disc relative to the magnetic head, an erase signal source for producing an erase signal which varies periodically, and apparatus for causing the head to generate magnetic fields with the erase signal, wherein the frequency f.sub.V of rotation of the magnetic disc and the frequency f.sub.E of the erase signal together satisfy the following condition so that no nodes of the erasing fields are fixed at any point on a track of the magnetic disc during a plurality of rotations of the magnetic disc:f.sub.E .noteq.(k/2)f.sub.Vwhere k is a positive integer.
摘要:
In an auto focus type camera employing an intermittent infrared-ray light to an object to be photographed and which uses the reflected intermittent light from the object as a focusing signal, a signal detecting device is employed. The signal detecting device detects the signal from a signal source oscillating with a certain determined frequency and includes a detecting circuit, a driving power source for the detecting circuit and a signal producing circuit. The signal producing circuit produces a quasi-signal equivalent to a fluctuation signal from the detecting source which depends upon the fluctuation of the driving power source for the detecting circuit. The fluctuation signal from the detecting source is thus compensated by the quasi-signal from the signal producing circuit. Thus the effect of the fluctuation of the power source is substantially eliminated.
摘要:
In the distance measuring system disclosed, light reflected from an object is converted into an electrical signal and processed to detect the distance to the object. Before the distance detecting operation, a signal level detecting operation is carried out in the distance measuring range and the gain of the signal processing or the amount of light for illuminating the object is automatically set for the distance detecting operation.
摘要:
A distance measuring device is disclosed. This device has light projecting means. Light is projected from this projecting means to a target, and the concurrently reflected light from the target is received by photoelectric light receiving means which is provided with a plurality of photosensitive elements independent of each other and arranged in such predetermined distances from the above described light projecting means as to correspond to individual object distances different from each other. From the concurrent state of output of said photoelectric light receiving means there can be detected a distance to the above described target.
摘要:
Provided is a natural leather having a novel coating layer which feels leathery. The coating film retains material properties such as strength and wearing resistance. When the user directly touches the natural leather, the coating layer present on the surface of the natural leather gives slick characteristics of natural leathers and smoothness. The natural leather has a coating film formed on a surface thereof, the coating film including: a color coat layer formed from a mixture of a hard component (10% modulus is more than 2.3 but no more than 3.0) and a soft component (10% modulus is more than 0.0 but no more than 1.0) of a two-component polyurethane resin; and a topcoat layer formed from a mixture of a medium component (resin having a 10% modulus of more than 1.0 but no more than 2.3) and a soft component (resin having a 10% modulus of more than 0.0 but no more than 1.0) of a two-component polyurethane resin.
摘要:
A paper treating agent comprising 100 parts by mass of organopolysiloxane (A), from 100 to 100,000 parts by mass of water (E), and 0.1 to 100 parts by mass of a surfactant (F), characterized in that the agent further comprises 50 to 1,000 parts by mass of a cellulosic resin (C), wherein 0.5 to 2.5 hydroxyl groups per glucose unit of said cellulosic resin are etherized or esterified, and a viscosity of an aqueous 2% solution of said cellulosic resin is from 2 to 100 mPa·s.
摘要:
An object of this invention is to provide a printhead tolerant of switching noise occurred when concurrently driving plural printing elements, a head cartridge using the printhead, and a printing apparatus. To achieve this object, a printhead includes plural printing elements and plural driving elements for driving the plural printing elements, and prints by these printing elements. The printhead includes the following arrangement. More specifically, the printhead includes a shift register which receives print data in synchronism with a clock signal, and a latch circuit which latches the print data input to the shift register in synchronism with a latch signal. The printhead further includes a restriction circuit which restricts input of the print data and clock signal to the shift register and input of the latch signal to the latch circuit in synchronism with input of an enable signal for driving the plural driving elements.
摘要:
A printhead tolerant of switching noise that occurs when concurrently driving plural printing elements, a head cartridge using the printhead, and a printing apparatus can be provided. The printhead includes plural printing elements and plural driving elements for driving the plural printing elements, and prints using these printing elements. The printhead also includes a shift register which receives print data in synchronism with a clock signal, and a latch circuit which latches the print data input to the shift register in synchronism with a latch signal. The printhead further includes a restriction circuit which restricts input of the print data and clock signal to the shift register and input of the latch signal to the latch circuit in synchronism with input of an enable signal for driving the plural driving elements.