摘要:
A magnetic tape recording and reproducing apparatus provided with means for recording a cue-signal which serves to mark a predetermined point of a magnetic tape on which video signals are recorded by a rotary magnetic head. The cue-signal is recorded by a full erasing head by supplying thereto a cue-signal current having a frequency lower than the frequency of the erasing current. For example, the cue-signal current is generated by using the control signal for synchronizing the rotation of the rotary head with the tape movement.
摘要:
This invention relates to a speed control circuit of a d.c. motor having a frequency generator. To the conventional method in which a rotation detection signal is delayed by a monostable multivibrator circuit and this delayed signal and the rotation detection signal are gated to obtain a speed error signal, a new time-voltage converter circuit is added, whereby even if the detected frequency of the generator is low, a stable speed control is possible. Because of no error synchronization, the present speed control circuit is suited to an apparatus which requires speed switching, and also to semiconductor integration.
摘要:
A binding device for snowboard according to the invention includes: a base member mounted on a snowboard; a rotor member provided rotatably on the base member and having attaching means for attaching a binding device and fixing means for fixing a shoe on the top face thereof; a holding member mounted on the top face of the base member, for holding the rotor member rotatably; and restoring means provided between the base member or the holding member and the rotor member, for restoring the rotated rotor member to a reference position.
摘要:
There is provided a signal processing system for recording and reproducing a video signal and a digital audio signal with a rotary-head VTR and, more particularly, a memory control system which generates a block address and a memory write signal so that the sync signal for reproduced digital data is detected reliably and the digital data is stored in the memory circuit correctly.
摘要:
An object of the present invention is to provide a test method for MALT lymphomas for providing genetic diagnosis data which can be used for the diagnosis of MALT lymphomas, identification of disease type, and prediction of progression of pathological conditions and onset thereof and a kit for implementing the method. At least two types of tumor-suppressor genes or cancer-related genes are selected, in particular, at least two types of genes are selected from a gene group consisting of 11 genes in a sample, and the expression levels or the gene expression regulation status of the selected genes are investigated. Early detection and diagnosis with high sensitivity and accuracy can be conducted by quantitatively determining the genetic product and preparing the expression profiles of the gene group on the basis of the results, or by detecting methylation frequencies to analyze the expression regulation.
摘要:
A method for preparing a carbon-containing composition is disclosed which comprises the steps of introducing, into a hot gas, a dispersion obtained by dispersing, in a decomposable carbon compound, a metal oxide and/or a metal compound which can be converted into the metal oxide by heating, to form a carbon-containing composition containing simple carbon and the corresponding metal oxide; and then collecting the formed carbon-containing composition. This carbon-containing composition is useful for the manufacture of a ceramic powder for sintering.
摘要:
A hopper subjected to a suction effect of a vacuum source such as a vacuum pump is connected by a hose to a suction nozzle thrown into a container for grainy material and an ejector is provided to supply the suction nozzle with pressurized air, and thereby a smooth pneumatic conveyance of the grainy material is achieved. A cap laterally provided with openings is slidably put on an open end of the suction nozzle and a total opening area of the lateral openings is adjusted by axially sliding the cap on the open end of the suction nozzle.
摘要:
In a VTR having a rotary head cylinder (20) having four magnetic heads with 90.degree. angular pitches inbetween on a cylindrical surface thereof, a magnetic recording tape is helically wound around the rotary head cylinder (20), a motor to drive the rotary head cylinder (20) is servo-controlled by utilizing output signal of a phase comparator (10) which compare a first frequency divider (62) to divide frequency of output signal of a rotation phase detector (7) into N/(2N-2) times and an output signal of a second frequency divider (61) for dividing frequency of vertical synchronization signal (S.sub.v) of video signal into 1/2 times, and thereby accurate phase control of the rotary head cylinder is attainable.
摘要:
A binding device for snowboard according to the invention includes: a base member mounted on a snowboard; a rotor member provided rotatably on the base member and having attaching means for attaching a binding device and fixing means for fixing a shoe on the top face thereof; a holding member mounted on the top face of the base member, for holding the rotor member rotatably; and restoring means provided between the base member or the holding member and the rotor member, for restoring the rotated rotor member to a reference position.
摘要:
A thin electromagnetic transducer includes a permanent magnetic plate, a vibratory diaphragm disposed in opposing relation to the permanent magnetic plate, a resilient buffer member interposed between the vibratory diaphragm and the permanent magnetic plate, and a support member for regulating the position of the vibratory diaphragm relative to the permanent magnetic plate. The permanent magnetic plate is of rigid structure, having a parallel striped multipolar magnetized pattern and a plurality of air-discharge through-holes are arranged in neutral zones of the magnetized pattern. The vibratory diaphragm is formed of a thin and soft resin film on which a coil is formed by printing. A linear portion of the conductor pattern is disposed in a position corresponding to the neutral zones of the permanent magnetic plate, and the vibratory diaphragm is supported such that the vibratory diaphragm can displace in a thickness-wise direction. The resilient buffer member is formed of generally same sized sheets as the vibratory diaphragm, which are soft and have high air-permeability.