摘要:
A nonradiative dielectric waveguide which includes a first housing and a second housing. The first housing and the second housing respectively include first and second dielectric units and conductor electrodes. The first and second dielectric units are respectively integrally formed with first and second planar portions, and first and second dielectric strip line portions extending outwardly from said first and second planar portions and by a predetermined height, with abutting faces generally parallel with the conductor electrodes and being provided at top portions of said dielectric strip line portions. The conductor electrodes are respectively formed in close contact with faces of the first and second dielectric units remote from the abutting faces. The first and second housings are overlapped so as to make the abutting faces confront each other. The first and second dielectric strip lines portions cooperate to propagate electromagnetic waves. The disclosure is also directed to a manufacturing method of the above nonradiative dielectric waveguide.
摘要:
A capping device to be used with an ink jet recording apparatus for recording on a recording medium by discharging ink onto the recording medium comprises a capping member for covering a discharge port of an ink jet recording head for discharging ink to effect the recording on the recording medium and a pushing member provided on the capping member at an inner side thereof for pushing with pressure against the discharge port of the ink jet recording head. An ink jet recording apparatus is disclosed using the capping device.
摘要:
Light spots are irradiated onto an optical disk and are detected as signals. A selection is made to receive as an input one of the detected signals from the light spots. The use of two light spots in a signal processing system permits writing information with one light spot and then reading it with the other to confirm the write state or erase state of the information.
摘要:
When record marks are recorded on a recording medium while making a code symbol "1" of data by obtained coding write information according to a coding system having no DC free property correspond to every edge of the record marks, the recording is effected while inserting resynchronizing signals into the write information with a constant interval. For the resynchronizing signal either one selected between a first resynchronizing code pattern, in which the number of symbols "1" contained therein is even, and a second resynchronizing code pattern, in which the number of symbols "1" is odd, so that an accumulated charge obtained from the run length of the coded data approaches zero is used. Each of the first and the second resynchronizing code pattern contains at least a specified pattern, which doesn't meet the coding rule. The selection is effected by adding a run length switching code to the resynchronizing signal and by switching it to "0" or "1" depending on an output of a run length measuring circuit and a run length judging circuit. In this way it is possible to suppress fluctuations in the level of a reproduced signal obtained from the record marks recorded on the recording medium and to realize a stable data detection by using the original waveform detection method, by which the reproduced signal is converted into a binary signal by using a suitable slice level.
摘要:
According to this invention, since the range of power necessary for erasing an overwritable magneto-optical recording medium is set to 2.5 mW or above, overwriting is possible without erase residue due to mark (magnetic domain) diameter difference, tracking offset, ambient temperature variation and characteristic dispersion between magneto-optical recording media and thus the magneto-optical recording medium has high reliability. Moreover, the rate of change, K of the switching field of the memory layer relative to temperature at around an erase start temperature can be controlled to be a constant value so that an erase power margin can be increased and that the tolerance to the reading light when the ambient temperature rises can be improved.
摘要:
A toner density control device of an electrophotographic recording apparatus in which development is conducted by a plurality of developing units with two-component developer wherein a toner density detecting device can detect the density of toner loaded in the plurality of developing units according to the variation of magnetic permeability of the developer. The detecting device is composed of a sensor provided to each developing unit, and a signal processing unit to process the output of the sensor selected by a selector. And toner is supplied according to the difference between the detected value of the detecting device and the reference value which is previously established.
摘要:
An adhesive resin composition comprising (a) an expoxy resin, (b) a curing agent therefor, and (c) an aluminum orthophosphate-zinc compound rust inhibiting pigment. When applied to the assembly of car body components, the composition assures improved bond strength and corrosion resistance.
摘要:
When recording domains are formed locally on a recording medium and information is recorded and reproduced by using rise and fall in a reproduced waveform obtained from the recording domains as data, timing patterns indicating start of demodulation are recorded for the lead-edge and the tail-edge of the recording domains, respectively; time interval between the timing signal for starting demodulation detected from the rise in the reproduced waveform and the timing signal for starting demodulation detected from the fall in the reproduced waveform is detected; time shifts of the signals detected from the lead-edge and the tail-edge of the recording domains succeeding the timing patterns for starting demodulation by using the time interval thus detected; and the information is stably detected as time sequential data having no jitter.
摘要:
In case of rewriting data by means of an erasable optical disc memory recording new data after having erased a series of data already stored, directory data written in an optical disc memory in order to control the written data are transferred to an external directory memory and write-in and read-out are controlled by using the directory memory. For rewriting data, which have been already recorded and which are recorded under a specified file name, the data are not erased and renewed data are written in another recording region, where recording is possible. The data, which have become unnecessary as the result of renewal, are erased during a period of time, when the optical disc memory is not accessed.
摘要:
Method and apparatus for processing information on a recording member having a recording film capable of recording and erasing information in accordance with the change of a magnetizing direction, by utilizing a light induced thermo-magnetic effect, in which before the intensity of the laser light is switched at the high level eliminating the magnetization of the recording film in order to effect the recording and erasing operations by focusing the laser light on the recording film as a light spot, a magnetic field with the predetermined direction according to the recording and erasing operations is previously applied on the recording film, whereby the recording and erasing operations of the magnetized information can be effected with high speed and stably by applying the normal magnetic field in the direction according to the recording and erasing operations respectively.