Abstract: An automatic video-tape cassette changing device adapted to be used in combination with a recording and reproducing apparatus comprises: a main body having a rectangular-shaped open space in which a number of cassettes is to be dropped, a cassette entering inlet located in the vicinity of and parallel to the access opening, and a cassette discharging outlet through which the cassette is discharged outwardly; a pair of cassette feeding mechanisms for dropping the cassettes one at a time; unit for inserting or extracting the dropped cassette into or from the access opening of the VCR; and unit for discharging the cassette extracted from the VCR through the cassette discharging outlet outwardly.

Abstract: An improved control device for use in an automatic video tape cassette changing apparatus is adaptive to various types of the video cassette recorders. The control device is capable of sequentially changing a plurality of cassettes in a convenient and reliable manner in a video cassette recorder. The control device include the sensors 52, 53, 54, 55, 56, the microprocessor 51 and the drive circuit for actuating the mechanical components. The microprocessor includes a first control mode responsive to the cassette detection signals from the sensor 54 and 56 for sequentially actuating the drive circuits 21, 36 and 39, and a second control mode responsive to the cassette detection signals from the sensors 53 and 56 for sequentially actuating the drive circuits 36, 39 and 41.

Abstract: An apparatus for use in a low-bit rate coding system is provided for preprocessing a video signal including interlaced even- and odd-numbered fields, each of the fields having video lines, and each of said lines consisting of pixels, resulting from scanning an image, to selectively define a window within the image before the video signal is coded for transmission in the low-bit rate coding system. The apparatus comprises a field window signal generator for providing a field window signal to enable the selective sampling of the field, a vertical window signal generator, in response to the fields window signal, for producing a vertical window signal to define the lines in the sampled field, and a horizontal window signal generator, in response to the vertical window signal, for producing a horizontal window signal to define the pixels for each of the derived lines.

Abstract: Automatically fine tuned pictures and sounds can be obtained from a novel color television system having a video/audio signal adjusting circuit, a remote controller operable for generating a program mode selection signal, a memory having a plurality of memory locations for storing operating parameter data for the video and the audio processing circuit corresponding to program modes, a microprocessor responsive to the program mode selection signal for receiving the operating parameter data corresponding thereto and for generating an audio control signal and a video control signal, a video signal adjusting circuit responsive to the video control signal for adjusting the video signal to have a video characteristic corresponding to the program mode selection signal, and an audio signal adjusting circuit responsive to the audio control signal for adjusting the audio signal to have a frequency band characteristic corresponding to the program mode selection signal.

Abstract: The present invention is a type of coasting device for a vehicle provided between a half shaft and a drive hub with external threads. A forward running ring and a rearward running ring, each with a truncated conical shaped surface, are mounted on the threaded section of the drive hub. An outer casing is coaxially provided at the outer circumference of the drive hub, the internal tapered surfaces of the casting matching the external truncated conical shaped surfaces of the two rings to form an overrunning clutch and a self-locking device. Thus, the inertial energy of vehicles can be sufficiently utilized, the release of harmful emissions from engines reduced, the wear of machine parts decreased and the driver's labor eased.

Abstract: A high speed modular memory adapted for use in a decoding system of motion compensated prediction coded image data, comprises: 2.sup.N memory modules each comprising a two dimensional memory array with an address register for storing different pixels of a frame of the image data, wherein said N is a positive integer; a read/write signal generator for generating a read/write signal in response to a frame synchronization signal from the image data; an address generator for simultaneously generating a horizontal and a vertical addresses for each of the 2.sup.N memory modules in response to a motion vector separated into a horizontal motion vector and a vertical motion vector and the read/write control signal; a data bus for communicating the image data with the 2.sup.N memory modules; and an order changer which changes within the data bus positions of the data simultaneously read from the 2.sup.N memory modules within the data bus in response to the horizontal motion vector.

Abstract: Disclosed herein is an improved VCR power supply capable of selectively breaking a dc supply voltage to an audio apparatus during its audio mute state set by a control unit. The improved power supply comprises a first transistor coupled to an upstream of the audio apparatus for selectively blocking the supply voltage; and a second transistor, in response to an audio mute control signal from the control unit, for controlling the selective breaking operation of the first transistor, thereby achieving a low consumption of electrical energy during the audio mute state.

Abstract: Disclosed herein is temperature regulating device for an air-circulated refrigerator capable of independently controlling the temperature of the freezer and the fresh food compartments air communicating with each other, by employing an evaporator, a first and a second fans which are all installed in the freezer compartment, and a thermostatic control circuitry.

Abstract: Compression of blocks of digital data is optimized by optimally selecting between frame and field format compression on a block-by-block basis. Specifically, a set of pixel data presented in a field format is compressed to provide a field compressed image signal. The set of pixel data is also presented in a frame format to provide a frame compressed image signal. The field and the frame compressed image signals are quantified; and the compressed image signal having the lesser amount of bits is then selected. The selection effectively improves the quality of the transmitted signal and reduces the structural complexity and manufacturing cost of the image signal encoding apparatus.

Abstract: A variable length code decoding apparatus comprises an interface circuit for extracting in parallel an objective bit stream having a predetermined number of bits from a 2.sup.n -bit variable length coded serial input bit stream (n is a positive integer), a control circuit for generating a buffer control signal, a barrel shifter control signal, a carry signal and a clock signal, and a lookup table memory connected to the interface circuit and the control circuit, for decoding the objective bit stream from the interface circuit and outputting a decoded symbol and a codeword length corresponding to the decoded symbol.

Abstract: An improved image signal encoding apparatus for processing a digitized image signal for transmission thereof in a compressed form, comprising a horizontal one-dimensional compression path for compressing the digitized image signal utilizing a horizontal correlation therein to provide a first compression signal, a vertical one-dimensional compression path for compressing the digitized image signal utilizing a vertical correlation therein to provide a second compression signal, a two-dimensional compression path for compressing the digitized image signal utilizing the horizontal and the vertical correlations to provide a third compression signal; and a comparator for comparing a first compression error contained in the first compression signal, a second compression error contained in the second compression signal and a third compression error contained in the third compression signal so as to enable the selection of the compression signal having the least error.

Abstract: An apparatus for recording and reproducing an encoded video signal from a source encoder comprises a decoder for performing a decoding process for the encoded video signal to produce a decoded video signal, an encoder block for compressing the decoded video signal using a spatial correlation to produce an intra mode compression signal, a buffer memory for storing the intra mode compression signal, a mode controller for generating a clock pulse used to read out data in the buffer memory in accordance with a longer playing time recording and a normal playing time recording and a recording and reproducing unit for recording and reproducing the intra mode compression signal read from the buffer memory.

Abstract: The present invention relates to a process for preparing a partially crosslinked binder resin useful for electrophotographic toner, which comprises:(1) preparing a partially crosslinked polymer by way of: a non-crosslinking emulsion polymerization of an aromatic vinyl monomer, an acrylic monomer and a cyanide compound in a linear structure, and a cross-linking polymerization of an aromatic vinyl monomer, an acrylic monomer, a cyanide compound and an unsaturated carboxylic acid or an unsaturated monomer containing an epoxy group; and(2) coagulating the polymer latex obtained in step(1) in the presence of a water soluble amine.

Abstract: The present invention relates to novel cephalosporin compounds, pharmaceutically acceptable non-toxic salts, physiologically hydrolyzable esters, hydrates and solvates and isomers thereof which possess potent and broad antibacterial activities. The compounds of the present invention have a (4-amino-1-substituted-alkapyrimidinium-4-yl)thiomethyl group in 3-position of the cephem nucleus and is specifically represented by the following formula(I): ##STR1## wherein: R.sup.1 is a hydrogen atom or a C.sub.1-4 alkyl, C.sub.2-4 alkenyl, C.sub.2-4 alkynyl or --C(R.sup.A)(R.sup.B)COOH group wherein R.sup.A and R.sup.B are independently a hydrogen atom or a C.sub.1-4 alkyl group, or form a C.sub.3-7 cycloalkyl group together with the carbon atom to which they are attached;R.sup.2 is an unsubstituted or substituted amino, C.sub.1-4 alkyl or C.sub.3-7 cycloalkyl group; andn is an integer ranging from 2 to 7.

Abstract: A magnetic tape cassette of the type allowing insertion and removal of a pair of tape reels without having to disassemble the cassette, comprising: a hollow housing capable of removably accommodating the tape reels, the housing having at least one access opening permitting the insertion and removal of the tape reels into and out of the housing therethrough; and at least one openable closure member hingedly connected to the housing to close the access opening.

Abstract: A videotape cassette case has a plurality of miniaturized ribs, effectively replacing the prior art guide ribs of complicated structure, to thereby attain the advantages of lowering the manufacturing cost and increasing the cooling efficiency during the injection moulding thereof.

Abstract: A drinker for chicken has a base, an outer case, a spring casing, a pull rod which is a match for the clearance of the spring casing, and a lever. The pull rod is connected to the combined part of a guideway ringlike valve at an end, and with the spring casing, forms two ringlike clearances within the case. A guide, a washer for the valve and an opening in the base form a clearance, which allows a jet-like spray of water to enter the case. The difference in the sectional areas between the clearances slows the velicity of the water. The time and the volume of water supply can be controlled be adjusting the stroke of the pull rod. By means of a back and forth movement of the guide and the pull rod, creating a jet-like spray, scale (mineral deposits) or any other contamination can be removed from the valve nozzle and the interior of the case. The result is a drinker which has no leakage nor any blockage because of scale build-up, and which is simple in structure and low in cost.

Abstract: Disclosed herein is a memory system for storing a two dimensional digitized image signal consisting of a plurality of pixels arranged in (2.sup.M +X) columns and (2.sup.N +Y) rows, wherein X and Y do not exceed 2.sup.M-2 and 2.sup.N-1 respectively, and M and N are integers, comprising: a virtual address generator for generating (M+N+2) bits of a virtual address having (M+1) bits of a horizontal address component representing said (2.sup.M +X) columns and (N+1) bits of a vertical address component representing said (2.sup.N +Y) rows; a memory, having storage locations of 2.sup.M+N+1, for storing the two dimensional digitized image signal, each of the storage locations capable of storing one pixel data therein and addressable by (M+N+1 bits) of a physical address; and address mapping circuitry for changing the virtual address to the physical address.

Abstract: The polyester film of the present invention comprising titanium compound, silica compound, fluorescent pigment and antistatic agent as additives is a white-colored, opaque film and has low gloss, superior surface printing and antistatic properties, and increased resistance against discoloring. The film is useful in manufacturing white boards, various magnetic cards, printing paper, packaging materials and the like.

Abstract: Disclosed herein is an automate cassette changing device adapted to be used in combination with a recording and reproducing apparatus, which comprises a main body having a rectangular-shaped open space suitable for receiving one or more stacked cassettes, a cassette entering inlet provided at a rear wall of the body for supplying the cassette to the apparatus therethrough, and a cassette discharging outlet formed at a side wall of the body for discharging cassettes ejected from the apparatus, projecting pieces provided at a front wall of the body for supporting the stacked cassettes, a pair of cassette feeding mechanisms mounted on the side walls of the body in an opposite relationship with each other for dropping the cassettes in sequence on the bottom surface of the body, and a cassette pusher associated with one of the cassette feeding mechanisms for pushing the lowermost one of the stacked cassettes and separating it from the stacked cassettes.