摘要:
A solid picture element that transfers charges completely from a photodiode portion to an amplifying transistor portion to substantially eliminate residual images and methods of its manufacture are disclosed. The solid picture element includes a buried photodiode and a transistor in communication with a transfer gate that is a selective transfer path for charges from the photodiode to the transistor. The charge accumulation region is located so that it is not in contact with the upper surface of the semiconductor substrate and so that a margin of the charge accumulation region is located 0.0 to 0.2 &mgr;m closer to the transistor than any portion of the depletion prevention region. Methods of manufacture of the picture element of the present invention include using the transfer gate as a mask and implanting ions into a semiconductor substrate at a first angle to form the charge accumulation region and at a second, steeper, angle to form the depletion prevention region. Alternative methods of manufacture include sifting a portion of a mask to sift end margins of the charge accumulation region and the depletion prevention region to achieve the desired geometry.
摘要:
When the user directs to change the view point within a virtual 3-D coordinate space having thereon displayed reduced images as a list of data by successively inputting a view point moving in an arbitrary direction, a trace of the movement of the view point is displayed within the screen. Thus, it has become possible to visualize individual data files in the database and the relationship among each item of the data. Consequently, the user can readily manage the data and retrieve the information he needs.
摘要:
A data select apparatus is constructed for selecting a desired data item. In the apparatus, an internal memory device memorizes a first set of data items. A peripheral device is provided for accessing an external memory medium. A detector device presents a detection signal when the peripheral device receives the external memory medium for accessing and when the received external memory medium stores a second set of data items upon accessing. A controller device responds to the detection signal for merging the first set of data items retrieved from the internal memory device and the second set of data items retrieved from the external memory medium with each other and for sorting the merged data items in a predetermined order. A display device operates upon presence of the detection signal for displaying both of the first and second sets of the data items in the predetermined order, and operates upon absence of the detection signal for displaying only the first set of data items. A keyboard device is operated to select a desired data item from the displayed data items.
摘要:
A material for forming contact members of a control switch, which has a structure including a primary layer made of Ni, Co, a Ni alloy or a Co alloy formed on a conductive base, and a surface layer made of Pd or a Pd alloy having a thickness of 0.001 to 0.4 .mu.m which is formed on the primary layer. Such material exhibits good resistance to corrosion and adhesive wear. A control switch which is made using such material has a high operational reliability and a long service life.
摘要:
A power supply unit for a discharge machining apparatus which eliminates overshooting in current rise and improves the electrode consumption characteristics by preventing an operational amplifier as well as a current control element from being saturated, thereby eliminating overshooting during the rise time of the machining current, by clamping the output voltage of the operational amplifier during the stand-by time for electric discharge. The output is clamped by a plurality of resistors and diodes to a state where the output voltage is higher than a power-supply voltage (the output clamp level is set by a resistor). Namely, during the stand-by time when inverted amplification (feedback) via a resistor in an operational amplifier is being carried out, a constant state of feedback is maintained by the diodes.
摘要:
A howling prevention apparatus prevents a howling noise which is generated in a sound amplification system using a microphone and a loudspeaker. The howling prevention apparatus utilizes a plural number of first to n-th equalizers, which have a variable frequency response and which modulate an output of the microphone. A detector detects a frequency point at which a loop gain of the system reaches a peak while supplying a standard noise signal to the loudspeaker to produce a test sound and measuring the sound collected by the microphone through the series of the equalizers. A frequency response of the first equalizer is adjusted to suppress a noise peak at and around a frequency point detected by the detector. Then, a frequency response of the second equalizer is also adjusted to suppress a noise peak at and around another frequency point detected by the detector. Lastly, a frequency response of the n-th equalizer is adjusted by subsequently repeating the above setting procedure.
摘要:
A wood board comprising a core layer comprising one or more strand boards formed by using a foaming binder, and at least one surface layer comprising oriented strand board, which is laminated to at least one surface of the core layer, the foaming binder being a mixture of a foaming resin and a non-foaming resin at a ratio within a range of 4:1-1:4. It is preferable that the thin wooden strips comprising the surface layer has at least one of an average length value and an average width value thereof which is larger than that of the thin wooden strips comprising the core layer. The wood board of the present invention has particularly superior resistance to moisture, and has low density and high strength. In the wood board of the present invention, it is possible to adjust the anisotropy of the strength thereof by adjusting the number of layers or the thickness thereof. The present invention furthermore provides a flooring material having high strength in which a decorative single sheet is applied to at least one surface of the wood board described above.
摘要:
A stator for miniature motors having a permanent magnet fixedly fitted to the inner circumferential surface of a housing formed into a bottomed hollow cylindrical shape, in which the circumferential surface of the housing consists of two opposing flat parts and two concave cylindrical surfaces; engaging projections are provided on the flat parts, and flat surfaces coming in contact with said flat parts, and engaging surfaces facing coming in contact with the engaging projections are provided on the axial edge of the permanent magnet made of a flexible ferromagnetic material, and formed into an arc-segment shape in cross section; and the permanent magnet is fixedly fitted in the housing by bringing the arc-segment-shaped outer circumferential surfaces of the permanent magnet in contact with the cylindrical surfaces of the housing, and bringing the flat surfaces on the axial edges of the permanent magnet in contact with the flat parts by causing the engaging projections to cut into the engaging surfaces by the plastic deformation of the engaging projections in a state where the permanent magnet is inserted into the housing.
摘要:
An electronic musical instrument includes a key support portion, a plurality of keys pivotally supported on the key support portion, a musical tone signal generator, after sensors, and a musical tone signal control unit. The musical tone signal generator generates a musical tone signal corresponding to each of the plurality of keys. Each after sensor has a plurality of sensors and is arranged in correspondence with the plurality of keys and operated near key depression end positions to for independently generate pieces of key information. The musical signal control unit controls the musical tone signal generator on the basis of the key information.