45results about How to "Improve transfer characteristics" patented technology

A coaxial cable (60) is used for transmitting a low frequency signal and an RF signal to a receiver main body (120). At the time of using an earphone antenna connecting device by soldering it to pins of a pin plug connector (110) used for connecting with the coaxial cable, a conversion board is provided for pins (11~ 20) of a 10 pin plug connector (115), and a rear plane of a pattern of the conversion board is used for grounding, except a pin inserting slot (100) of the pin (20) connected with an antenna signal line (9). Pin inserting slots (134A, 135A, 132A) into which audio signal pins (14, 15) and a microphone pin (12) for transmitting low frequency waves such as voice are surrounded from at least three sides. Thus, noise in devices from a voice signal and a microphone signal is reduced, high frequency signal transmission characteristics are improved by the connector, and the degree of freedom in board layout is improved.

The optical signal receiver of this invention is an optical signal receiver that receives and frequency-demodulates an optical signal, comprising: an optical branch device for splitting an input optical signal into two optical signals ( 13 ); an optical delay line for delaying one of the two branched optical signals ( 15 ); a first photoelectric conversion circuit ( 17 ) for converting the optical signal from the optical delay line into the first electrical signal ( 17 ); a second photoelectric conversion circuit ( 19 ) for converting the other optical signal of the two branched optical signals into a second electrical signal; the rectangular-wave forming circuit ( 21, 23, 25 ) for outputting a single rectangular-wave signal using the first electrical signal from the first photoelectric conversion circuit and the second electrical signal from the second photoelectric conversion circuit as inputs; and a smoothing circuit ( 12 ) for smoothing the rectangular-wave signal from the rectangular-wave forming circuit.

The invention discloses a high damping vibration test clamp which comprises a connecting bottom board (1), a connecting vertical board (1) and reinforcing ribs (3) and further comprises a high damping rubber layer (4) and a restraint layer (5). The connecting bottom board (1) is horizontally placed, the connecting vertical board (2) is vertically placed, and the connecting vertical board (2) and the connecting bottom board (1) are fixed in a welded mode; the reinforcing ribs (3) are perpendicular to the connecting bottom board (1) and the connecting vertical board (2) and welded to the connecting bottom board (1) and the connecting vertical board (2) respectively. The high damping vibration test clamp is connected with a platform board of a vibration platform through threaded holes formed in the connecting bottom board (1); a detected device is connected with the high damping vibration test clamp through threaded holes formed in the connecting vertical board (2) and threaded holes formed in the connecting bottom board (1). According to the high damping vibration test clamp, the high damping rubber layer adheres to the surface of the clamp and the restraint layer is added to the high damping rubber layer, so that the damping of the clamp is increased, and therefore the transmission chrematistics of the clamp are effectively improved.

The invention relates to a combined nitrification method for synthesizing nitrobenzene and a combined device of a micro-reactor and a stirring reactor. During the synthesis, benzene and mixed acid of nitric acid and sulfuric acid are taken as initial materials, are conveyed to two inlets of the micro-reactor through a metering pump respectively, are premixed in micro-channels, and perform partialnitration reaction at the same time; and a first-stage nitration product with high dispersion state is produced at an outlet of the micro-reactor. The first-stage nitration product continuously flowsinto a stirred tank nitration reactor to continue to react. The method and the device perform continuous operation under the condition of the mixed acid with high water content and have safe process,the conversion rate of the benzene is 99.85 percent (mol), and the selectivity of a product, namely the nitrobenzene is 99.8 percent (mol).

The invention discloses a high damping vibration test clamp which comprises a connecting bottom board (1), a connecting vertical board (1) and reinforcing ribs (3), and further comprises a high damping rubber layer (4) and a restraint layer (5). The connecting bottom board (1) is horizontally placed, the connecting vertical board (2) is vertically placed, and the connecting vertical board (2) and the connecting bottom board (1) are fixed in a welded manner; the reinforcing ribs (3) are perpendicular to the connecting bottom board (1) and the connecting vertical board (2) and welded to the connecting bottom board (1) and the connecting vertical board (2) respectively. The high damping vibration test clamp is connected with a platform board of a vibration platform through threaded holes in the connecting bottom board (1); and a detected device is connected with the high damping vibration test clamp through threaded holes in the connecting vertical board (2) and threaded holes in the connecting bottom board (1). According to the high damping vibration test clamp, the high damping rubber layer adheres to the surface of the clamp and the restraint layer is added to the high damping rubber layer, so that the damping of the clamp is increased, and therefore the transmission characteristics of the clamp are effectively improved.

A body fluid absorbing article, which is improved in the spot absorptivity and in the diffusivity in an absorbent, and which is improved in the characteristics of a body fluid migration to the absorbent. The body fluid absorbing article comprises an absorbent sandwiched between a body fluid permeable surface member and a body fluid impermeable back member. Said absorbent includes an upper layer and a lower layer sequentially from the side of said body fluid permeable surface member, and said lower layer has a higher density than that of said upper layer.

The present invention relates to absorbent articles for body fluids having improved point absorbency and diffusivity within the absorbent body, while having improved transfer characteristics of body fluids to the absorbent body, said absorbent article comprising a body fluid-permeable surface material and An absorbent body is sandwiched between the body fluid-impermeable backsheets, and the absorbent body has an upper layer and a lower layer in this order from the body fluid-permeable surface material side, and the density of the lower layer is higher than that of the upper layer.

The photoelectric composite cable 11 includes: an optical fiber 12; and a plurality of three or more electric wires 15, wherein, in a case where a cross-section of the photoelectric composite cable is viewed in a direction perpendicular to the cross-section, the plurality of electric wires 15 are each independently arranged on a circumference of a periphery of the optical fiber 12. The photoelectric composite cable 11 can be smoothly wired in a narrow space or the like while maintaining good transmission characteristics of optical fibers 12 by suppressing the optical fibers 12 from being applied with an external force without an increase in the diameter of the cable 11.

An optical waveguide type wavelength dispersion compensation device has an optical waveguide as a reflection type wavelength dispersion compensation means in which an equipment refraction index of a core changes unevenly over a light transmitting direction by changing a physical size of the core embedded in a clad. The core is designed in the following: (a) first, a first desired reflection spectrum is set with transmission losses neglected and an optical wavelength possible to compensate wavelength dispersion of an optical fiber to be compensated is then designed; (b) a wavelength dependency characteristic of a transmission loss in this optical waveguide is derived from an effective length of the optical waveguide designed in the process (a); and (c) next, a reverse dependency characteristic of the wavelength dependency is added to the first reflection spectrum to correct a second reflection spectrum and an equivalent refraction index distribution of the optical waveguide designed in the process (a) is re-designed by using the second reflection spectrum.

A wireless transmission system is provided with a feature in which a combination of a plurality of symbol waveforms brings about the maximum path diversity effect even in the case that the number of the most effective branches is limited to a small number. A transmission timing control unit (23) determines transmission start timing to be timing delayed by a prescribed delay amount from standard timing. A modulating unit (21) uses one from a plurality of symbol waveform candidates to modulate a signal in accordance with a modulation system in which a symbol waveform once demodulated on a receiving side exhibits anti-multiple path characteristics and its phase transition is a changing waveform, and transmits the same at transmission start timing. The prescribed delay amount is such magnitude that the number of receiving timing at which a receiving station (12) receives the signal per symbol waveform is plural and not larger than the number of the maximum effective branches, and that a difference between receiving timing is not less than a prescribed delay resolution and not larger than the upper limit of a prescribed delay.

Disclosed is a pre-equalisation optical transmitter which is a simple and low-cost structure capable of generating a pre-equalised RZ-type optical signal. Further disclosed is a pre-equalisation optical fibre transmission system which is appropriately managed in a decentralised manner and which uses the pre-equalisation optical transmitter. The transmitter is provided with: an RZ conversion circuit (11), which generates an RZ-type input data sequence on the basis of an NRZ-type input data sequence (D(t)) and a clock signal (p(t)) that is twice the speed of the NRZ-type input data sequence; a digital filter (12), which generates pre-equalised data by performing a convolution calculation between the RZ-type input data sequence and a desired transfer function associated with the wavelength dispersion of an optical fibre transmission path; D / A converters (13a, 13b) which perform D / A conversion on the pre-equalised data and output analogue pre-equalised data; and a vector modulator (15) which modulates the light from a laser light source (14) on the basis of the analogue pre-equalised data and outputs an RZ-type optical signal.

A thermal transfer element is capable of improving transfer characteristics because transfer is performed at a low temperature. The thermal transfer element includes: a base substrate as a support substrate; a light-to-heat conversion layer formed on the base substrate to convert incident light to thermal energy; a transfer layer formed on the light-to-heat conversion layer to form an image; and a release layer formed between the base substrate and the light-to-heat conversion layer to facilitate delamination of the light-to-heat conversion layer from the base substrate. The release layer includes a silicon polymer having a glass transition temperature (Tg) of 25 DEG C. or less, and low surface energy. In a further embodiment, the thermal transfer element includes an interlayer formed between the light-to-heat conversion layer and the transfer layer to protect the light-to-heat conversion layer.