Abstract: An inverter device for variably controlling an operating frequency of an electric motor, which drives a compressor in a refrigerating cycle. the inverter includes a box-like resin case, having a metal film for shielding being applied or plated on a surface thereof and having a step portion on which a terminal block for the motor is arranged. A first substrate having mounted thereon power semiconductor devices constituting a converter and an inverter so as to be immersed in gel, and the first substrate is mounted in the case and brought into proximity of radiation fins at a reverse surface thereof. A second substrate having mounted thereon interface connectors into which signals from detection sensors for temperatures and pressures in the refrigerating cycle are input and photo-couplers for transmitting the input signals, and the second substrate is mounted in the case above the first substrate.

Abstract: The present invention provides a laminated glass for vehicles exerting the functions that are difficult to be made compatible in combinations such as (1) a shade band in an interlayer and an optical device such as a CCD camera, (2) a heat shielding interlayer and an optical device, and (3) a heat shielding interlayer and a combiner. In this laminated glass for vehicles, the interlayer includes a first region and a second region that is either enclosed by the first region or formed by partially recessing an edge portion of the first region. The first region is provided with a light reducing function that imparts a light transmittance loss at least of visible light, and in the second region, the interlayer has a light transmittance loss of visible light that is smaller than that in the first region.

Abstract: The present invention provides a laminated glass sheet for windshield that includes a transparent conductive film and enables ITS communication. The laminated glass sheet includes a first bus-bar aranged along an upper end of the laminated glass sheet, and a second bus-bar arranged along a lower end of the laminated glass sheet, and the first busbar includes a protruding portion that extends toward the second bus-bar, and the transparent conductive film is not formed in a concave portion that is formed by the protruding portion. Since the concave portion can be used for the communication, the conductive film may be free from an opening.

Abstract: A branch portion 101 branches an inputted electrical signal into an in-phase signal and an opposite phase signal which have an opposite relation as to a phase. A first FM laser 104 converts the in-phase signal into an optical frequency-modulated signal (a first optical signal) having a center wavelength &Dgr;1 and then outputs the resultant signal. A second FM laser 105 converts the opposite phase signal into an optical frequency-modulated signal (a second signal) having a center wavelength &Dgr;2 and then outputs the resultant signal. The two optical signals are combined and then inputted into an optical-electrical converting portion 106.

Abstract: A refrigerating apparatus comprises: a first substrate, on one surface of which an active converter and an inverter are mounted, and on a reverse surface of which a radiation fin is closely fixed; a second substrate, on which a microcomputer, a current detecting mechanism, and a terminal block are mounted; a resin casing covering sides of the first and second substrates and provided with a step permitting the terminal block to be arranged thereon; and a third substrate, on which an interface connector and a photo-coupler are mounted. The first substrate, the second substrate, and the third substrate are layered in this order on a bottom surface of the casing. Gel is filled up to a power semiconductor surface of the first substrate, and a resin is filled up to an upper surface of the second substrate.

Abstract: A digital electrical signal Vin for transmission is supplied to a transistor Q12, a current compensation circuit 11, and a signal current source 13 to be band-compensated for generating a signal current I0. A predetermined current Id for a constant-current source 14 is subtracted from the signal current I0, and the result is an injection current Iin that drives an LED 15. The current Id is adjusted so that the injection current Iin becomes 0 at the low level. Thus, a signal-to-noise (S/N) ratio in waveform of light outputted from the LED 15 can be improved. Accordingly, the S/N ratio of the transmitted signal can be improved with band compensation.

Abstract: A branch portion 101 branches an inputted electrical signal into an in-phase signal and an opposite phase signal which have an opposite relation as to a phase. A first FM laser 104 converts the in-phase signal into an optical frequency-modulated signal (a first optical signal) having a center wavelength &lgr;1 and then outputs the resultant signal. A second FM laser 105 converts the opposite phase signal into an optical frequency-modulated signal (a second signal) having a center wavelength &lgr;2 and then outputs the resultant signal. The two optical signals are combined and then inputted into an optical-electrical converting portion 106.

Abstract: The ATM exchange of the present invention comprises an input line interface and an output line interface. The input line interface comprises an FRM extractor for deciding whether each ATM cell sent from a first communication terminal to a switch is an FRM cell or a non-FRM cell, an FRM cycle monitor for using this decision result to monitor the FRM cell proportion among the ATM cells and deciding whether said proportion is normal or abnormal, and a first cell processor for discarding the non-FRM cells when the proportion is abnormal. The output line interface comprises a BRM extractor for deciding whether each ATM cell sent from a communication terminal to a switch is a BRM cell or a non-BRM cell, a BRM cycle monitor for using this decision result to monitor the BRM cell proportion among the ATM cells and deciding whether said proportion is normal or abnormal, and a second cell processor for discarding the non-BRM cells when the proportion is abnormal.

Abstract: A group of semiconductor laser diodes outputs fundamental-wave lights controlled so that each wavelength thereof is double the wavelength of a light for wavelength multiplexing transmission. The fundamental-wave lights are provided to a light receiver, and then to a group of wavelength conversion elements, wherein the fundamental-wave lights are converted into lights each having half the wavelength of each fundamental-wave light. The group of wavelength conversion elements outputs lights including the converted lights each having half the wavelength of each fundamental-wave light and the fundamental-wave lights. The outputted lights are passed through a group of fundamental-wave optical eliminators typified by an optical filter for passing the converted lights and eliminating the fundamental-wave lights, a guiding part, and then an optical multiplexer, and then guided to a transmission medium.

Abstract: A refrigerating apparatus comprises: a first substrate, on one surface of which an active converter and an inverter are mounted, and on a reverse surface of which a radiation fin is closely fixed; a second substrate, on which a microcomputer, a current detecting mechanism, and a terminal block are mounted; a resin casing covering sides of the first and second substrates and provided with a step permitting the terminal block to be arranged thereon; and a third substrate, on which an interface connector and a photo-coupler are mounted. The first substrate, the second substrate, and the third substrate are layered in this order on a bottom surface of the casing. Gel is filled up to a power semiconductor surface of the first substrate, and a resin is filled up to an upper surface of the second substrate.

Abstract: The present invention provides a laminated glass sheet for windshield that includes a transparent conductive film and enables ITS communication. The laminated glass sheet includes a first bus-bar arranged along an upper end of the laminated glass sheet, and a second bus-bar arranged along a lower end of the laminated glass sheet, and the first bus-bar includes a protruding portion that extends toward the second bus-bar, and the transparent conductive film is not formed in a concave portion that is formed by the protruding portion. Since the concave portion can be used for the communication, the conductive film may be free from an opening.

Abstract: At a transmitting end, a selector multiplexes a command and data inputted from different systems to generate a multiplexed signal string(s). An encoding portion determines an amplitude value of a current multilevel code according to predetermined encoding rules based on a detected symbol and the amplitude value of a multilevel code generated immediately before and generates a multilevel code string. A transmitting portion transmits the generated multilevel code string to a receiving end through a transmission path. A decoding portion of the receiving end decodes and reproduces the command and the data with an amplitude value of the multilevel code string outputted from a receiving portion and the amplitude value of the multilevel code immediately before received according to predetermined decoding rules. The decoding portion separately outputs the command and the data. This allows various types of information to be multiplexed and transmitted with small delay.

Abstract: A branch portion 101 branches an inputted electrical signal into an in-phase signal and an opposite phase signal which have an opposite relation as to a phase. A first FM laser 104 converts the in-phase signal into an optical frequency-modulated signal (a first optical signal) having a center wavelength &lgr;1 and then outputs the resultant signal. A second FM laser 105 converts the opposite phase signal into an optical frequency-modulated signal (a second signal) having a center wavelength &lgr;2 and then outputs the resultant signal. The two optical signals are combined and then inputted into an optical-electrical converting portion 106.

Abstract: A branch portion 101 branches an inputted electrical signal into an in-phase signal and an opposite phase signal which have an opposite relation as to a phase. A first FM laser 104 converts the in-phase signal into an optical frequency-modulated signal (a first optical signal) having a center wavelength &lgr;1 and then outputs the resultant signal. A second FM laser 105 converts the opposite phase signal into an optical frequency-modulated signal (a second signal) having a center wavelength &lgr;2 and then outputs the resultant signal. The two optical signals are combined and then inputted into an optical-electrical converting portion 106.

Abstract: A scheduling device and a cell communication device capable of reducing a total storage region required for a scheduling function. Cell output control is performed by the scheduling function. The scheduling device includes a content addressable memory having queues for storing incoming cells. The queues have queue numbers. The queue numbers correspond to addresses of the content addressable memory. Read time for each cell is also stored in the content addressable memory. The actual time or a read time stored in a read time storage section is taken as the virtual time. The content addressable memory outputs a cell from a queue having a queue number indicated by an address, if this address has a matching address at the virtual time based on comparison conditions at the actual time and virtual time. The read time stored in the read time storage section and that in the content addressable memory are updated based on the comparison conditions at the actual time and virtual time.

Abstract: A transmitting-end device 1 generates a pilot signal by means of a pilot signal generation section 14, and transmits a pilot signal to a receiving-end device 2. At the receiving-end device 2, a transmission rate modification section 24 detects the transmission band of an optical transmission line 3 based on the amplitude of the pilot signal, and decides a data transmission rate acceptable to the receiving-end device 2 by taking into account the transmission band of the optical transmission line 3. Based on a maximum data transmission data acceptable to the transmitting-end device 1 and the data transmission rate thus decided, a control section 22 in the receiving-end device 2 arbitrates a data transmission rate between the transmitting-end device 1 and the control section 12.

Abstract: In an optical transmission system Sa, a lens 112 converges an optical signal OSin outputted from a light emission element 111. The optical signal OSin having passed through the lens 112 enters a multi-mode fiber (MMF) 12. A vertex Z0 of the lens 112 and an input plane Fin of the MMF 12 are at a distance Z1. The distance Z1 is set to a value which is not equal to the distance from the vertex Z0 to the focal point Zfp of the lens 112. As a result, a low-cost optical transmission system can be provided in which the influence of mode dispersion is reduced.

Abstract: For prevention of ghost images from occurring on head-up displays, a glass surface is ground, and a reflecting surface with a wedge-shaped cross section is formed. Furthermore, in order to reduce optical distortion at the edge portion of the reflecting surface, a ground surface contacting the reflecting surface with an angle between 150° and 210° is formed. In accordance with the enlargement of the reflecting surface accompanied by the tendency of head-up displays becoming larger, the reflecting surface is divided into at least two regions, and the angle of the reflecting surface is optimized for each region.

Abstract: A line type illuminator comprising a plurality of light sources at a side of one end of a rod-like transparent light guide, wherein an auxiliary light scattering pattern is formed with two (2) spot-like patterns, which are provided at positions being shifted from a center line of a main light scattering pattern in the longitudinal direction and are separate in a width direction, for maintaining evenness or uniformity of illumination intensity in a longitudinal direction. Normal lines of those two (2) spot-like patterns and the center line of any one of the plurality of light sources, extending in the longitudinal direction, intersect each other. Specifically, the longitudinal center lines of the red-color light sources and the green-color light source intersect the respective normal lines of the spot-like patterns 21a and 21a.

Abstract: A cell transmitting device receives cells for transmission to a cell receiving device on a connection in a communication network. The connection has a minimum cell rate, established when the connection is set up. The cell transmitting device measures the input rate of cells to be transmitted on the connection, determines an allowable cell rate on the basis of the input rate and cell rate information supplied by the cell receiving apparatus, and transmits cells within the allowable cell rate. Under certain conditions, such as absence of cell traffic on the connection, the allowable cell rate is set to a lowest cell rate lower than the minimum cell rate, thereby enabling other connections to obtain higher cell rates.