Abstract: A low coherence beam emitted by a low coherence light source is split into two portions. One portion is transmitted from the outward end of a first single mode fiber via a detachable connector to a beam scanning probe, and then to a biological tissue; and the other is transmitted from an optical coupler placed midway along the light path via a second single mode fiber to a light path modifier. The light path modifier includes a galvanometer mirror to modify the light path length in accordance with a scan range, and a uniaxial stage to adjust the light path length to absorb the variation in lengths of different beam scanning probes. The light path is adjusted by the uniaxial stage such that the beam interference is detected for the scan range, to ensure stable acquisition of tomographic images.

Abstract: A lane detection sensor for detecting opposite lane markers of a road, comprising: an image shooting member for shooting an image of the road ahead of a running motor vehicle; an image data memory for storing data on the image of the road from the image shooting member; a contour point extracting member for extracting, by using the data on the image of the road stored in the image data memory, contour points corresponding to the lane markers of the road; a curve detecting member for calculating polynomial curves by using the contour points corresponding to the lane markers of the road from the contour point extracting member; a Hough transformation limiting member for bounding a region of Hough transformation by using coefficients of the polynomial curves calculated by the curve detecting member; a Hough transformation member for performing Hough transformation by using the polynomial curves from the curve detecting member and the region of Hough transformation bounded by the Hough transformation limiting mem

Abstract: A local positioning device detects a local position of an automobile advancing along a lane formed on a road in a direction. A digital image data indicative of an advancing direction view observed from the automobile in the advancing direction is applied to the local position device. An edge extractor, a threshold generator, and a contour extractor are operable for extracting a contour data indicative of the lane from the image signal. A coordinate convertor converts the contour data into a plane view data indicating the dimensions of extracted contours correctly. A matching operator matches a line or an arc with each of extracted contour. A lane mark contour extractor selectively extracts a pair of extracted contours corresponding to the lane on which the automobile is located.

Abstract: A fluorescent endoscope apparatus having: an endoscope that irradiates a subject portion to be observed with light transmitted through a light transmission device to obtain an object image of the subject portion to be observed; a normal observation light generating device for emitting normal light for performing normal light endoscope observation; a fluorescent observation light generating device for emitting excitation light for performing fluorescent light observation; an introduced-light switching device for selectively introducing, to the light transmission device of the endoscope, normal light emitted by the normal observation light generating device or excitation light emitted by the fluorescent observation light generating device; and an image sensing device for capturing a normal light image of the subject portion to be observed that can be obtained by irradiating the subject portion to be observed with normal light or excitation light or a fluorescent image that can be obtained due to irradiation wit

Abstract: A medical system control apparatus including a plurality of pieces of medical equipment having respective identification numbers thereof individually, and having display portions on which setting conditions or operating conditions are displayed and operating portions for modifying the setting conditions or the operating conditions which are displayed on the display portions, a centralized controller for controlling the plurality of pieces of medical equipment, a centralized display device connected to the controller and provided with a display portion which displays the display contents of the plurality of pieces of medical equipment, a centralized operation device connected to the controller for controlling the setting conditions or the operating conditions which are displayed on the display portions of the plurality of pieces of medical equipment, and a communication device for enabling the plurality of pieces of medical equipment, the centralized display device and the centralized operation device and the

Abstract: In the method and apparatus for inhibiting a scattered component in a light having passed through the interior of an examined object, a light is radiated to the examined object, the sum of a straight advancing light component and scattered light component of the light having passed through the interior of the examined object is detected, only the scattered light component of the light having passed through the interior of the examined object is detected and the straight advancing light component is detected by an operation using the two detected outputs. In the scattered component inhibiting method and apparatus, a light modulated with a period larger than the delay of the propagating time by the scatter in the examined object is radiated to the examined object, the light having passed through the interior of the examined object is detected and the straight advancing light component is extracted by extracting a predetermined phase of the detected output.

Abstract: A photo-pulse from a photo-pulse generating apparatus is branched, where one branch is radiated to an examined body and the reflected light reflected within the examined body is delayed in time in proportion to the depth from the surface of the examined body and is led to a time-analyzing reflected light measuring apparatus. In this measuring apparatus, the other branched reference photo-pulse or reference signal pulse is input as delayed by the time for which the photo-pulse reflected within the examined body returns and only the reflected light component synchronized with the entering timing of this reference light pulse is analyzed in the time and is detected. By varying the detection sensitivity of this measuring apparatus in response to the depth from the surface of the examined body, the interior can be observed.

Abstract: A cylinder head intake porting system for a three intake valve internal combustion engine wherein a staged induction system is employed and mid-range torque is improved by communicating separate intake passages with each other. Both carbureted and fuel injected embodiments are shown.

Abstract: A waveform equalization method whereby a transversal filter having 5 or more tapes is included, and a difference signal output, which is obtained when an isolated impulse response waveform of a digital modulated signal is inputted to the above described filter and the output of the filter is inputted to an adder, is allowed to have intersymbol interference at .+-.T/2 with respect to the central axis time and has zero outputs at .+-.nT/2 (where n.gtoreq.2 and n is an integer).

Abstract: An automatic verification system for a maintenance/diagnosis facility in a computer system comprising a host computer and a service processor for performing maintenace/diagnosis of the host computer. The host computer includes a fault detecting facility and the service processor includes a fault cause analyzing/processing facility and a fault cause analysis data storing file. The fault cause analyzing/processing facility automatically retrieves on a software basis the fault cause analysis data with high efficiency and accuracy to improve accuracy and efficiency of the test.

Abstract: A device for decoding coded digital signals for every symbol consisting of a plurality of binary signals comprises first circuit for generating a first reliability for every binary signal; hard decided from the received or reproduced signal, in the symbol and second circuit for generating a second reliability for every symbol consisting of n binary signals on the basis of the first reliability, whereby decoding processing e.g. soft decision decoding is effected for every signal, depending on the second reliability.

Abstract: An error detection and/or correction is achieved in the horizontal direction in a block and then an error state is determined by use of an error correction in the vertical direction; furthermore, the correcting system is changed over according to the result of the determination.

Abstract: A time divided digital signal transmission system includes a transmitter for converting plural analog signals to digit signals, generating multiplexed time divided signals from the digital signals, and transmitting the multiplexed time divided signals by a digital data transmission circuit. The system further includes a receiver for receiving the multiplexed time divided signals, demultiplexing the multiplexed time divided signals so as to thereby obtain the original digital signals and converting the original digital signals back into the original analog signals. The system is arranged to effectively utilize both synchronizing signals and clock signals for the analog to digital conversion and the digital to analog conversion in the system.

Abstract: A delta modulation system which has a reduced quantization noise level. The system compares its input signal with an integrated and filtered version thereof and inhibits the integration when the difference therebetween has not varied for two or more consecutive clock periods.

Abstract: A water repellent gypsum composition comprising a gypsum, and a paraffin emulsion prepared by emulsifying (a) paraffin hydrocarbon having a melting point of 40.degree.-80.degree. C and (b) an oxidized paraffin having an acid value of 10-70 at a ratio of from 97:3 to 50:50 by weight, respectively, in the presence of a water soluble alkali compound. Optionally, a polymer emulsion or solution may be added.