摘要:
A lighting apparatus includes an apparatus body for supporting an LED lamp having an earth cap, an earth socket to which the earth cap of the LED lamp is mounted, and an attachment base provided in the apparatus body, the earth socket being attached to the attachment base. The earth socket includes a conductor plate for mechanically holding a lamp pin of the earth cap, the conductor plate being electrically connected to the lamp pin. The attachment base and the earth socket include a connecting unit for earth-connecting the conductor plate of the earth socket and the apparatus body.
摘要:
An analog delay circuit which includes an analog memory circuit wherein a plurality of memory cells each including a memory capacitor and a selection switch for the memory capacitor are arranged in a matrix includes row switches provided for the individual columns for individually being driven by row selection signals. A same clock signal from a clock generation circuit is supplied commonly to an X direction scanning circuit and a Y direction scanning circuit. The number of stages of registers of the X direction scanning circuit and the number of stages of registers of the Y direction scanning circuit are set so that they have no common divisor other than 1. Consequently, when the memory cells are to be selectively scanned, a same selection condition can be provided to all of the memory cells without relying upon the positions of the memory cells, and the parasitic capacitance connected to a signal write/read terminal is reduced.
摘要:
A process for manufacturing a semiconductor device wherein the number of input/output terminals can be selectively increased while using input/output amplifier circuit functional portions having the same circuit configuration, by using both ball bonding and TAB bonding techniques. Every two (4A, 4B) of the electrodes on the semiconductor device correspond to each one set of input/output amplifier circuits formed by three ones (6A, 6B, 6C) of the input/output amplifier circuits. The spacing S.sub.1 between the two electrodes (4A, 4B) corresponding to one set of input/output amplifier circuits is substantially equal to the spacing S.sub.2 between the electrode 4B and the adjacent electrode 4C of one adjacent set of input/output amplifier circuits and also to the spacing S.sub.3 between the electrode 4A and the adjacent electrode 4D of the other adjacent set of input/output amplifier circuits.
摘要:
A digital-to-analog convertor divides an input digital signal into a least significant bit group and a most significant bit group. The most significant bit group is converted using pulse amplitude modulation and the least significant bit group is converted using pulse width modulation, in which the pulse widths are varied symmetrically about predetermined time points within a conversion period in order to improve the linearity of the pulse width modulation conversion.
摘要:
A peak detector having rise-time enhancement of input signals is comprised of a feedback amplifier including two input terminals and a feedback circuit which interconnects the amplifier output terminal with one of the input terminals; and a peak detecting circuit, including a capacitor, coupled to the other of the amplifier input terminals. The capacitor voltage is applied as an input signal to the feedback amplifier, and abrupt changes in the rise-time portion of the input signals are detected and are used to vary the amplifier feedback so as to enhance the output signal produced by the amplifier during the rise-time portion.
摘要:
A capsule room unit for use as a capsule bed or other private space has a horizontally oblong rectangular parallelepiped room framework formed by columns, beams and panel materials fitted into the room framework to constitute a ceiling, a floor and walls, wherein the columns and the beams are composed of extruded materials each having a longitudinally consecutive groove. The panel materials of the ceiling and walls are composed of synthetic resin or FRP hollow panel materials each having peripheral flanges at a periphery along a plane direction, and the flanges of the hollow panel material are inserted and fitted to the grooves of the extruded materials.
摘要:
A linear random N-substituted acrylamide copolymer comprising 65 to 99% by mole of ethylene units, 1 to 15% by mole of acrylate units and 1 to 35% by mole of acrylamide units, the copolymer having a weight average molecular weight of 1000 to 50000, and an aqueous composition, a resin film, a laminate, recording paper and a foamed article comprising the N-substituted acrylamide copolymer, respectively. The N-substituted acrylamide copolymer is excellent in antistatic ability for thermoplastic resins and does not lower physical properties such as transparency and elongation of films and articles which are formed from a thermoplastic resin. Moreover, the N-substituted acrylamide copolymer is excellent in anti-blocking ability so that the copolymer can be suitably used for various uses.
摘要:
In a semiconductor integrated circuit device of master slice approach according to this invention, regions on basic elements which are not used and isolation areas serve as wiring regions. Resistive elements are formed on the regions on the basic elements which are not used and the isolation areas. A high integration level can be obtained, circuit layout can be facilitated, and versatility of circuit design can be improved.
摘要:
A latched comparator circuit is disclosed in which a voltage comparator circuit of a differential construction composing a part of the latched comparator circuit is substituted for by a plurality of differential amplifying circuits connected in parallel to the prior stage thereof and which are supplied with a differential input. Also, there is disclosed a latched comparator circuit in which a voltage comparator circuit of a differential construction composing a part of the latched comparator circuit is substituted for by a plurality of differential amplifying circuits connected in parallel to the prior stage thereof that are supplied with a differential input for voltage comparison and in which a switching circuit is provided between the differential amplifying circuits and a latch circuit for electrically separating both of them upon latch operation.
摘要:
An integrating digital-to-analog converter circuit includes an operational-amplifier based integrator, a plurality of constant current sources each providing constant current at a respective different level, and a plurality of switches each associated with a respective current source for coupling the same to the integrator. A plurality of digital counters are arranged to hold a predetermined portion of an n-bit digital word loaded therein and to count clock pulses until their contents reach a predetermined count. At those times, a carry pulse is generated in each such digital counter and the associated switch is opened to cut off the associated current source. Such a digital-to-analog converter circuit can convert data words of relatively high bit length without the need for an excessively high frequency clocking signal.