Abstract: Disclosed is a method for detecting road slope and a system for controlling vehicle speed using the method. The method comprises the steps of receiving input of road images from a camera; performing conversion of the road images into a bird's-eye view; extracting a plurality of lane markers from the converted road images; calculating a slope in the extracted lane markers; and calculating a slope in the road using a difference in value between the slopes.

Abstract: Disclosed herein is a three-dimensional image constructing method using an X-ray apparatus. In the three-dimensional image constructing method, a construction space of a subject and information for the construction space are set. Thereafter, a plurality of transmission images of the subject are obtained. The data of the construction space are calculated on the basis of the information for the construction space set at the setting step and the transmission images obtained at the image obtaining step. The construction space is constructed on the basis of the data calculated at the image processing step.

Abstract: An image processing method comprises the steps of generating a road image by photographing a road on which a vehicle is traveling; performing a brightness averaging process of the road image; filtering the road image having undergone the brightness averaging process to detect lane markers; performing an inverse perspective process on the filtered road image; compressing the road image having undergone the inverse perspective process; determining slope in the lane markers from the compressed road image; determining a curvature in the road from the determined slope in the lane markers; and determining a drive direction and a lane deviation of the vehicle.

Abstract: A telescopic system for a robot includes a frame for mounting a motor, a stationary module mounted on the frame and a rotational shaft rotating by the motor. The rotational shaft is mounted in the stationary module, and a movable plate is associated with the rotational shaft to ascend and descend according to a rotational motion of the rotational shaft. A movable module is mounted on the movable plate to expand away from and retract into the stationary module as the movable plate ascends and descends.

Abstract: The present invention relates to a method of adding a grain growth inhibitor of WC/Co cemented carbide, which comprises adding a water-soluble salt of V, Ta, or Cr component as a grain growth inhibitor, at the time of mixing water-soluble salts of W and Co during the initial production process of WC/Co cemented carbides. As a result, the present invention leads to the production of powder of homogeneous distribution of grain growth inhibitors, which in turn results in the enhancement of the mechanical properties thereof by effectively controlling the abnormal growth of WC during sintering in the production process of said cemented carbides.

Abstract: Disclosed a vehicle speed control system using wireless communications, the system including a driving state detecting unit for detecting a driving state and outputting corresponding signals; a transmitter/receiver for outputting low-strength signals; an electronic control unit for receiving the signals of the transmitter/receiver and establishing an ISA mode if necessary, determining if a present driving state corresponds to a first driving state, determining if the driver has performed deceleration operations and performing control into the first driving state if needed; an engine control unit for outputting signals for control of the throttle valve opening; a throttle valve electronic control unit for outputting electrical signals to a throttle valve to control the same; and a display for displaying a present mode and a vehicle state.

Abstract: A cooling system controller for a vehicle includes a radiating rate measurement unit measuring the radiating rate of a radiator, a heating rate estimation unit estimating the heating rate of a heat generating device such as an engine, transmission and brake, a heat balance comparing unit calculating a heat balance error quantity by comparing the radiating rate measured by the radiating rate measuring unit with the heating rate estimation forecasted by the heating rate estimating unit, and calculating a radiating rate follow-up value in order to achieve a heat balance with the heating rate estimate, an adaptive control unit learning state changes of the radiating device and the heat generating device and adaptively-controlling the cooling system according to the heat balance comparison by the heat balance comparing unit, and a cooling fan control unit controlling the operation of a cooling fan in order to meet the radiating rate follow-up value calculated by the heat balance comparing unit.

Abstract: Techniques for compensating for PMD in multiple WDM channels by processing all WDM channels in the same manner without demultpliexing the channels. A feedback control is provided to decrease the worst-case power penalty and the channel fading probability by optimizing over the entire group of WDM channels.

Abstract: Disclosed a vehicle speed control system using wireless communications, the system including a driving state detecting unit for detecting a driving state and outputting corresponding signals; a transmitter/receiver for outputting low-strength signals; an electronic control unit for receiving the signals of the transmitter/receiver and establishing an ISA mode if necessary, determining if a present driving state corresponds to a first driving state, determining if the driver has performed deceleration operations and performing control into the first driving state if needed; an engine control unit for outputting signals for control of the throttle valve opening; a throttle valve electronic control unit for outputting electrical signals to a throttle valve to control the same; and a display for displaying a present mode and a vehicle state.

Abstract: The present invention relates to an electronic suspension control system (ECS) not using a G sensor and a steering angle sensor but using an ECS control algorithm and an ABS wheel speed sensor in order to perform rough road detecting and roll controlling.

Abstract: A damping control system for a stabilizer bar with an electronic shock absorber between a low arm and the stabilizer bar for controlling the rolling of the vehicle. Included are a potentiometer, a vehicle speed sensor, a steering angle sensor, an electronic control unit and a voltage amplifier.

Abstract: An improved multi-deck VCR system for performing a combination operation and a series playback operation comprises at least three VCR units, a remote control unit for selecting one of a variety operating modes to drive the VCR units in accordance with a selected operation mode, a combination of a first switch and a mode conversion circuit for effecting the combination operation wherein a particular one of the VCR units operates in a playback mode and the remaining VCR units are simultaneously driven in a recording mode and a combination of a second switch and a sequential logic circuit for effecting the series playback operation wherein each of the VCR units is sequentially and repeatedly driven in the playback mode.

Abstract: A phase locked loop (PLL) circuit forming a closed loop and comprised of a frequency/phase detector, a loop filter, a voltage controlled oscillator and further includes a voltage controlled oscillator controller. The circuit realizes a faster frequency locking and is capable of outputting a variety of frequencies.

Abstract: The present invention relates to a process for preparing a polyethylene naphthalate possessed with high viscosity, characterized by sloving of various problems of the prior art by controlling the rate of the polycondensation reaction.Particularly, the present invention provides a process for preparing polyethylene naphthalate from an esterification reaction product of naphtalene dicarboxylic acid or an alkyl ester thereof and a diol, which comprises polycondensing the esterification reaction product in the presence of a polycondensation catalyst in two steps wherein the first step is carried out at a pressure ranging from 500 to 30 torr and the second step is carried out at a pressure ranging from 10 to 0.1 torr with controlling the reaction rate such that the differential increase of the intrinsic viscosity of the resultant polymer can satisfy the following equations:IV(t.sub.1)-IV(t.sub.0)<0.4 dl/g (1)IV(t.sub.2)-IV(t.sub.0)>0.3 dl/g (2)wherein: IV(t.sub.

Abstract: The present invention relates to a biaxially oriented polyester film comprising a metallic alkylbenzene sulfonate derivative of formula(I), polyethylene glycol and, optionally, bis(4-.beta.-hydroxyalkoxyphenyl) sulfones of formula(II), which has improved antistatic property, clarity, mechanical properties and heat resistance: ##STR1## wherein: R represents an optionally substituted C.sub.8-25 alkyl group;M represents an alkali or alkali earth metal;m is an integer of 100 or fewer; andn is an integer from 1 to 10.