Abstract: An embodiment of the transmission system comprises an MSK linear-modular transmitter and an MSK differentially coherent receiver connected by a transmission medium 3. A system embodying the invention is essentially characterized by filters in the receiver including analog or digital equalizers and by a differential encoding carried out on symbols of a message to be transmitted by a differential encoder included in the transmitter. The function of the equalizer is to eliminate intersymbol inteference in received signals. The differential encoding carried out is such that a coded symbol of rank k issued by the encoder depends on the corresponding symbol of the message and on the coded symbol of rank k-M, whereby M is an odd integer preferably greater than 1. On reception the probability of decision error with regard to a received symbol is all the lower that the integer M is high. The value M=3 is an appropriate value.

Abstract: A video signal is transformed into first blocks each containing transform coefficients. A plurality of adjacent first blocks are combined into a single second block. Transform coefficients of the second block are rearranged, and transform coefficients of equal-components of the first blocks are made successive to form sucessions of the transform coefficients of the equal-components of the first blocks. The successions are arranged in a predetermined order to compose a one-dimensional sequence of the transform coefficients. Non-zero transform coefficients of the sequence are encoded into corresponding variable-length codes. Successively-appearing zero transform coefficients of the sequence are encoded into a corresponding variable-length code.

Abstract: The present invention it to provide an angle iron for speedy pipe hanging, particularly is related to an angle iron requires no prior size measuring and boring during the construction of pipe hanging so to save man hours and is applicable to all tubular objects having the general specification that allos easy and facilitated use as its primary objective. The present invention comprises a set of angle iron and fastening components, which including U screws, nuts and packings. Essentially, it is characterized by pre-punching out on either plane of the angle iron a series of strip openings with each abutted openings having a certain spacing while both ends showing an arch respectively; then the processed angle iron requires no size measureing and boring when to be feastened to the tubular objects as to allow speedy construction, particularly is applicable to the fastening of pipe hanging of tubular objects having the general specification.

Abstract: A single chip microcomputer as a semiconductor device comprises CMOS logic portion and a driver portion operating at a high voltage which can be connected to an external device. In the region of the CMOS logic portion, a P type well layer and an N type well layer are formed on a P type silicon substrate. An N type well layer is formed in the region constituting the driver portion. The junction depth of the N type well layer constituting the driver portion is made deeper than that of the N type well layer constituting the CMOS logic portion. A MOS transistor is formed in the region of each well layer in the CMOS logic portion. A MOS transistor whose drain breakdown voltage is increased is formed in the region of the N type well layer of the driver portion. The junction depth of the N type well layer is made deeper than that of the N type well layer constituting the CMOS logic portion at least below the drain region of this MOS transistor.

Abstract: A connector includes a terminal positioning seat, a wire positioning seat with upper and lower trough portions, and a molded hood housing the wire positioning seat and supporting the terminal positioning seat. Horizontal positioning structure is provided for lockingly engaging the terminal positioning seat and the molded hood to one another. A positioning piece projects vertically from the terminal positioning seat through vertical grooves provided in the upper and lower trough portions in order to position the wire positioning seat accurately with respect to the terminal positioning seat.

Abstract: In a picture-quality improving circuit, a luminance transition is detected on the basis of a luminance signal. Chroma edge characteristics of a color signal are enhanced in accordance with the detected luminance transition. A detection is made as to whether the color signal and the luminance signal are correlated or uncorrelated in transition. When the color signal and the luminance signal are uncorrelated in transition, the enhancement of the chroma edge characteristics of the color signal is interrupted.

Abstract: A pulsed high pressure, supersonic plasma jet for accelerating a projectile through an elongated confined bore is derived from a dielectric structure including a capillary passage having an interior wall surface from which plasma forming material is ablated in response to a discharge voltage applied to first and second electrodes respectively forming a nozzle and plug at opposite ends of the passage. The nozzle injects the plasma into the bore behind the projectile.

Abstract: For modulating the quantity of gold diffused in a silicon substrate, prior to gold diffusion, one realizes a diffusion of phosphorus varying within a 10.sup.13 to 10.sup.15 atoms/cm.sup.3 range. The concentration of phosphorous is increased at the places where one wishes to increase the gold concentration.

Abstract: An ultrasonic blood velocity detector comprises an ultrasonic probe emitting ultrasonic wave into an examined body and converting echoes of the emitted ultrasonic wave into an echo signal. The echo signal is processed into a detection signal through phase detection. A first Doppler signal and a second Doppler signal are derived from the detection signal. The first Doppler signal represents a flow of blood. The second Doppler signal mainly contains clutter components. A difference in phase between the first and second Doppler signals is calculated.

Abstract: A video signal processing apparatus for processing a video signal including SYNC pulses, a time-compressed color difference and luminance signals, compression factors of those signals being different from each other, the color difference signal and luminance signals being transmitted sequentially for one horizontal line for simultaneously outputting time-reproduced color difference and luminance signals comprises: first and second time-expansion circuits for producing the time-reproduced luminance and color difference signals in response to first and second clocks respectively; a switching circuit for selectively outputting the time-reproduced color difference signal in response to a control signal; a PLL responsive to the video signal including a frequency dividing circuit for producing the first and second clocks, and a synthesized SYNC pulse; and a phase detecting circuit for detecting a phase relation between the video signal and the synthesized SYNC pulse to produce the control signal.

Abstract: In the semiconductor memory device according to the present invention, a n type drain diffused region (9a) to be connected to a bit line (12) is formed on a p type semiconductor substrate (1) and a n type source diffused region (9b) is formed with a prescribed spacing from the n type drain region (9a). On the p type silicon substrate (1), a p type diffused region (16a) of high impurity density and p type diffused region (16b) of high impurity density are formed in such a manner that they are in contact with the n type drain diffused region (9a) and the n type source diffused region (9b), respectively, but not in the channel region of the n channel MOS transistor (18). Consequently, the .alpha. particle-generated charges can be decreased without changing the threshold voltage of the transfer gate transistor.

Abstract: A vibration damping device disposed between a vibrating body such as an internal combustion engine and a base such as a vehicular chassis, comprises an accelerometer which is mounted on the vibrating body and detects an acceleration in the vertical direction of the vibrating body, and a control unit which controls the viscosity of rheopectic fluid within a flow restricting member disposed in the damping device in response to an acceleration signal from the accelerometer. The control unit operates in such a manner that, when the control unit receives an acceleration signal whose value is smaller than a preset value, voltage is applied to the electrodes disposed in the flow restricting member and as a result the dynamic damping effect is gained.

Abstract: A process for preparing organic smectite applied for thickener, protective colloid, dispersant and binder. The present invention features the process for preparing the organic smectite by mixing smectite incluidng 0 to 20% by weight of interlayer water in the interlayer spaces of said smectite with organic cation-supplying substance selected from at least one of aliphatic alkylamine salts, aromatic amine salts and basic organic compound having pyridine nucleus, and/or basic organic molecule in a mixing ratio of the latter to the former of 10 to 500 milliequivalents per 100 g smectite, and stirring the resulting mixture at a temperature of 5.degree. to 50.degree. C. under an applied pressure of 0.5 to 10 kg/cm.sup.2 to cause a solid-solid reaction.

Abstract: A system is provided for forcibly drawing a flexibly-supported, acute angled, wedge under an existing stretch of a predetermined width of reinforced pavement to initiate removal thereof from the ground below. Gravity-assisted impact hammers apply downward blows of a controlled magnitude and at a predetermined rate onto an upper surface of the reinforced pavement, to crack the same across the entire width thereof over the wedge being driven therebelow. The wedge is flexibly supported, with a predetermined amount of elasticity in the up-and-down direction, so that it essentially "floats" and facilitates absorption of the impact forces by the reinforced pavement to be cracked thereby. Cracked reinforced pavement is subjected to further blows by a hammer coacting with a set of bars transverse thereto, to forcibly render a bulk component of the reinforced pavement into small pieces separated from reinforcement material contained therein.

Abstract: The position of an implement is determined relative to a tablet including a tuned circuit with a resonant frequency including coils arranged in two coordinate directions. Coils of the tablet are sequentially excited with AC energy having approximately the same frequency as the resonant frequency. The tuned circuit interacts with the AC energy to change the AC current flowing in coils of the tablet as a function of the implement position so the greatest changes in the AC current are in coils of the tablet closest to the implement. Detected values of changes in current as a function of coil position are interpolated to indicate the implement position.

Abstract: A frame, suitable for a child's buggy, is provided for removably supporting a seat for a child in a plurality of angular positions, comprising a manually operable lateral mechanism which is adapted to support the seat whereby the seat is fixedly mountable in and releasable from the frame, the mechanism also providing adjustment of the seat to a desired fixed angular position in relation to the frame. The manually operable mechanism comprises a rotatable knob which allows a wedge or dove-tailed part thereof to be withdrawn from engagement with another part so that it can be rotated to a different angular position before being drawn back into engagement, when it is locked in position. To release the seat entirely, the knob is a rotated to a further position to withdraw a cooperating locking device so that the seat can be lifted from the dove-tailed part.

Abstract: In a printed-wiring board produced by arranging a plurality of wiring circuit patterns on a printed-wiring board by screen printing and cutting out product regions corresponding to the wiring circuit patterns by punching them along the circumferences of the product regions, the printed-wiring board according to the present invention comprises deviation detecting patterns for determining whether or not the condition of deviation of the printed pattern is within an allowable limit, the deviation detecting patterns being printed at the time of the screen printing of the wiring circuit patterns in the vicinity of the position of the cut plane of the board for each product region of each wiring circuit pattern. Thereby, it is made possible to easily determine whether or not the condition of the pattern deviation is within a specified allowable limit.

Abstract: A lead frame for a semiconductor device and a method for manufacturing the semiconductor device using the frame, the lead frame comprising a dice pad, inner leads, tie bar, outer leads and a thin metal layer of lead which is hard to melt and is easily transformed formed on the surface of that portion of the inner leads, outer leads and the tie bar which is not covered with the sealing resin. In injection molding of a resin material on the lead frame with a semiconductor chip therein, the gap between the lead frame and the mold is filled while the thin metal layer is transformed by the clamping pressure so that the burr may be prevented from being generated.

Abstract: A power-driven impact drill includes a spindle extending at a right angle to the axis of rotation of a drill bit, a rotational first hammer slidably mounted on the spindle for co-rotation therewith, and a reciprocal second hammer slidably disposed in front of the drill bit. When the rotation of the first hammer is arrested by the second hammer, the first hammer is caused by a cam mechanism to retract along the spindle in a direction away from the second hammer against the force of a first hammer spring. Upon disengagement with the second hammer, the first hammer is permitted by the cam mechanism to slide back into engagement with the second hammer under the force of the first hammer spring while it is rotated by the spindle. In this instance, the angular velocity of the first hammer received by the spindle is enhanced by the force stored in the compressed first hammer spring so that a large impact power is imposed to the rotating drill via the second hammer without substantial loss.