Abstract: A fin-tube type heat exchanger having improved heat transfer rate is disclosed. The heat exchanger effectively restricts forming of separation bubbles on the back surfaces of the tubes fitted to the fin bodies, thus to promote smooth air flow in the heat exchanger and to improve heat transfer rate. The heat exchanger has the vertically placed fin bodies, the tubes horizontally penetrating the fin bodies, a plurality of dimples provided on opposed side surfaces of the fin bodies, and separation bubble controllers for reducing the size of separation bubbles formed about the tubes. The bubble controllers are provided on the opposed side surfaces of the fin bodies about the tubes. In another embodiment, the heat exchanger has no bubble controller but reduces the size of the separation bubbles by controlling configurations and directions of the dimples.

Abstract: A magneto-optical disk comprising a polycarbonate substrate, a first protective coating coated on the polycarbonate substrate, a recording layer coated on the first protective coating, a second protective coating coated on the recording layer, a reflective layer coated on the second protective coating, wherein the first and second protective coatings comprises at least one multiple layer of SiNx/TiO.sub.2 /SiNx layer or a coating of an amorphous AsxS.sub.1 -x layer. The present invention can provide a magneto-optical disk of a good anti-reflection effect as a result of considerable increase of the .theta.k value, and a good stability against the oxidation.

Abstract: A vacuum cleaner which is able to be used for water extraction cleaning and for dry suction cleaning. The cleaner comprises a dry suction cleaning device and a water extraction cleaning device which are movable individually under the connected condition thereof. The water extraction cleaning device includes an air-liquid separation surface such that air and liquid impinge against the air-liquid separation surface, thereby causing entrained liquid droplets to be separated from the incoming air, a second air-liquid separation surface disposed at downstream of the first separation surface such that air and liquid past the first separation surface impinge against the second air-liquid separation surface, thereby causing small droplets to be separated from air. The present vacuum cleaner perfectly prevents water from incoming toward a motor, that is a suction device and effectively cleans smooth flat floors as well as carpet, when used for water extraction cleaning.

Abstract: In a data processing apparatus, having a user domain with domain storage space and an emulation domain with emulation storage space, emulates an instruction in the user domain by calling a program of instructions in the emulation domain. An instruction register connected to receive the sequence of instructions is partitioned into a plurality of fields. At least one field of the instruction register identifies a location for address information for an operand used in execution of the instruction. The instruction is decoded to generate a control code. The control code includes a branch signal to call the emulation program and a domain access control signal to indicate whether the emulation program requires access to the user domain storage base for execution. During execution of the emulation routine, domain access is implied by the location identified for the address information--a set of locations having been preselected as address registers for implied domain addressing.

Abstract: A roller type developing apparatus for a cycolor type color video printer. A pair of said plates are mounted on a base of the color video printer and spaced apart from each other, the side plates each is provided with a vertical mounting hole. The upper and lower pressing rollers each is rotatably supported between the side plates, and provided with a clearance for allowing the cylith film and the receiver paper to pass therethrough at the same time. The upper and lower support bearings are vertically mounted in each mounting hole of the side plate and connected to respective end shafts of the upper and lower pressing rollers, respectively, and each is adapted for supporting the upper and lower pressing rollers. The pressure controlling member is adapted for controlling the clearance in order to control the pressure for the upper and lower pressing rollers.

Abstract: A device for restraining abrupt pouring of the papers for paper supply cassette. The device comprises a pair of turning members each disposed about each front side portion of a box-shaped housing of said paper supply cassette, and tension coil spring. The turning member comprises a supporter having a horizonal part and a vertical part, and an actuating lever having a horizontally extending connecting part and a downwardly extending actuating part integrally formed with said connecting part. The tension coil spring is disposed between the side wall of the housing and the connecting part in order to bias said turning member counterclockwise. The device according to this invention provides advantage in that it supports the front ends of the papers in the cassette, thereby preventing the abrupt pouring of the papers efficiently.

Abstract: To create a snapshot copy of selected elements of a database in a data processing system, the selected elements are copied sequentially to a secondary storage device. During the copying operation, when a task requests to delete one of the selected elements from the database before it is copied to the secondary storage device, a record is made to identify the requested element, the task is allowed to continue processing. After the element has been copied to the secondary storage device, the identified element will be deleted based upon the record. Also, during the creation of the copy, when a task requests to update one of the selected elements, a duplicate copy of the requested element is created and the task is allowed to update the requested element. When it is time to copy the requested element to the secondary storage device, the duplicate copy will be used.

Abstract: An apparatus for coupling signals between a CSMA/CD data transmission medium and a plurality of data terminals. Collisions between data signals transmitted from more than one of the data terminals are detected to generate an internal collision signal. An external collision signal is generated in response to detected collision signals on the transmission medium. The internal and external collision signals are merged and broadcast through an isolating transformer to each of the data terminals.

Abstract: A data reordering memory for writing data into the memory in one order and reading data out of the memory in a different order. The data reordering facilitates the processing of the data by a prime factor discrete Fourier transform processor.

Abstract: A special purpose computer and method of computation for performing an N-length discrete Fourier transform (DFT) using a sum and difference conjugate prime factor transform. The transform length N is selected as equal to the product of L mutually prime factors N.sub.1, N.sub.2, . . . , N.sub.i, . . . , N.sub.L. For each one of the L mutually prime factors N.sub.i, an N.sub.i -length DFT is performed. Each N.sub.i -length DFT transform is performed using a data processing element called a kernel. Each kernel includes one or more memory elements for reordering data and a computational element. The computational element includes adder circuit means for forming the sum term, SUM(n.sub.i) equal to the quantity x(n.sub.i)+x(N.sub.i -n.sub.i) and the difference term, DIFF(n.sub.i) equal to x(n.sub.i)-x(N.sub.i -n.sub.i).

Abstract: A multi-port microwave device, such as an isolator or circulator, for transmission of electromagnetic energy in TEM mode non-reciprocally between ports. The device exhibits low insertion loss, high return loss (low VSWR) and high isolation and is operable over a 100 percent or more bandwidth. The microwave device includes a composite ferrite body between a circuit conductor and a ground plane. The composite ferrite body includes at least two different types of ferrite material where each one is selected to provide different frequency characteristics over the frequency pass band of the device.

Abstract: A multi-port microwave device, such as an isolator or circulator, for transmission of electromagnetic energy in TEM and higher order modes non-reciprocally between parts. The device exhibits low insertion loss, high return loss (low VSWR) and high isolation and is operable over a 100 percent or more bandwidth. The microwave device includes a composite ferrite body between a circuit conductor and a ground plane. The composite ferrite body includes ferrite material having a saturation magnetization gradient for providing different frequency characteristics over the frequency pass band of the device.

Abstract: An electrical discharge is applied to a wafer mounted in a wafer holder. The wafer includes at least one conducting region covered by an insulating layer. The discharge causes a conductive channel from the conductive region through the insulating layer. The conductive channel provides a relatively low impedance path suitable for conducting away electrons which are injected into the region during processing steps such as electron beam exposure.

Abstract: A compact chassis-integrated slide assembly for use with electronic or other equipment. A movable chassis is translated relative to a stationary rack. Two or more slide guides are fastened to each of the two side walls of the chassis. The slide guides are adapted to slidably engage a channel in a floating slide member. The floating slide member supports the chassis while at the same time permitting relative translation of the chassis and the floating slide by means of the slide guide sliding in the channel of the floating slide. The floating slide in turn slidably engages a rack sheath where the rack sheath is adapted to be rigidly attached to the stationary rack.

Abstract: A combined serial priority and parallel priority apparatus and method of operation for use in data processing systems. Each of the parallel priority circuits are interconnected by a common parallel priority bus which carries parallel priority signals indicating the priority level of any unit requesting access. If a unit requesting access has a lower priority than indicated on the parallel priority bus, that requesting unit is inhibited from obtaining access. If a requesting unit has higher priority than the signals on the parallel priority bus, that unit in turn causes the priortiy bus to be switched to the higher priority level.The serial priority circuits act together with other serial priority circuits within a group of priority circuits set to the same parallel priority. In this configuration, the parallel priority circuits perform a high-order priority determination while the serial priority circuits perform a low-order priority determination.

Abstract: A semiconductor package and electronic array in which the semiconductor packages of the array share a common substrate. The substrate has a plurality of sets of contacts with each set of contacts receiving contacts of a semiconductor chip. Each chip and set of contacts is surrounded by a closed length of bond receptive material. A heat dissipation member is attached to each chip by means of a heat conductive plate, and an annular ring is bonded to each heat dissipation member and to the closed length of bond receptive material to hermetically seal the chip.

Abstract: A microinstruction-controlled computer including a sequencer for controlling the sequencing of microinstructions. The computer executes target instructions by executing a number of microinstructions for each target instruction. Microinstructions are grouped in one or more microinstruction subroutines in a microstore. Microaddresses for addressing microinstructions and subroutines in the microstore are provided by a microaddress generator which includes a stack unit and other microaddress sources. The stack unit includes a stack memory and a link memory. The link memory stores, for each target instruction, a predetermined number of preloaded microaddresses where each such microaddress specifies the address of one of a number of subroutines employed to execute a particular target instruction. Sequential microaddresses in the link memory are accessed to link the subroutines employed in the execution of each target instruction.

Abstract: Disclosed is a primary data processing system comprised of, for example, a main store, a storage unit, an instruction unit, an execution unit, a console unit and a channel unit for performing primary system programs. The console unit includes a secondary digital computer for performing secondary programs which functions to observe and/or alter the primary system. The functions performable by the secondary system include altering the primary system control state, causing primary commands to be executed, controlling primary data and addresses, and scanning out primary information. The console is connected through a command bus, an address bus and a data bus to the controls and data paths of the channel unit, of the instruction unit and of the storage unit.

Abstract: Ions are implanted into a body, such as semiconductor substrate material, through one or more covering layers formed over the body. A thin conductive film is in contact with the covering layer prior to the ion implantation. The ions are implanted into the material through the thin conductive film. The conductive film functions to conduct away any charge which tends to accumulate in the covering layer. The conductive film thereby prevents a charge accumulation which would tend to discharge through and cause damage to the covering layer. The method is particularly useful for fabricating MOS and CMOS semiconductor devices.

Abstract: A parity prediction circuit for predicting parity in an adder, counter or similar device. The parity prediction is obtained with a parity prediction network connected from most significant bit to least significant bit. The parity prediction network is used in place of a parity generator or in combination with a parity generator for error checking purposes. In a special application, the parity prediction is employed for a ripple-carry type counter where the predicted parity bit is produced by a single network of NAND gates connected in series from high-order to low-order counter bits. The predicted parity is available no later than the completion of the carry-out propagation.