Abstract: A storage system connected to host processors through data transfer paths includes at least one storage unit for moving a head for reading/writing the data relatively to a storage medium to read/write the data from/to the storage medium, and a controller for controlling the data transfer between the host processors and the storage units. The controller obtains and stores, every data transfer path, the information relating to the delay time which occurs when transferring the data through the data transfer path of interest. When an I/O request is issued from the host processor, in accordance with the measured information of the delay time in the data transfer paths, a request for positioning the head near the position on the storage medium in which the data is stored which is to be read/written is issued.

Abstract: A disk cache control unit disposed between an upper-rank processor and a disk unit, comprising a cache memory for holding a copy of data stored in the disk unit, at least one first interface controller which checks, in response to an input/output command requesting data to be read from the upper-rank processor, whether or not the data requested by the command is stored in the cache memory, and requests a head positioning of the disk unit when the data is not stored in the cache memory, and a second interface controller which indicates head positioning to the disk unit in response to a head positioning request, notifies the completion of the head positioning to the first interface controller in response to a notice of the completion of the head positioning, and which reads data from the disk unit and stores the data in the cache memory when a data transfer request did not come in a specified time period set to read data from the disk unit without a rotational delay after a notice of the head positioning head b

Abstract: An intake system for an internal combustion engine includes first and second intake valve bores provided to face a combustion chamber and to be independently opened and closed by first and second intake valves, and first and second intake ports which are connected to the corresponding intake valve bores with a partition wall interposed therebetween and which communicate with a common intake passage. In a particular operation range of the engine, an imbalance is produced in the concentration of the air-fuel mixture flowing through the first and second intake valve bores into the combustion chamber on the basis of a difference between the amounts of fresh air flowing into the first and second intake ports. The intake system further includes a communication hole provided in the partition wall for putting the first and second intake ports into communication with each other. This provides for improvements in the lean combustibility and in the nature of the exhaust gas.

Abstract: This invention provides a rosin emulsion sizing agent for papermaking comprising a fortified or unfortified rosin-epoxy compound obtained by reacting a rosin and an epoxy compound, wherein the rosin-epoxy compound is dispersed in water with the aid of an emulsifying and dispersing agent, and paper sized therewith and a method of sizing using the same. The rosin emulsion sizing agent of the present invention exhibits an distinguished sizing effect in neutral papermaking systems even when calcium carbonate is contained therein and is excellent in mechanical and storage stabilities while causing little foaming in the papermaking system. In addition, the sizing agent presents no significant difficulties in its production.

Abstract: A disk cache control unit disposed between an upper-rank processor and a disk unit, comprising a cache memory for holding a copy of data stored in the disk unit, at least one first interface controller which checks, in response to an input/output command requesting data to be read from the upper-rank processor, whether or not the data requested by the command is stored in the cache memory, and requests a head positioning of the disk unit when the data is not stored in the cache memory, and a second interface controller which indicates head positioning to the disk unit in response to a head positioning request, notifies the completion of the head positioning to the first interface controller in response to a notice of the completion of the head positioning, and which reads data from the disk unit and stores the data in the cache memory when a data transfer request did not come in a specified time period set to read data from the disk unit without a rotational delay after a notice of the head positioning head b

Abstract: The present invention relates to an information processing device for writing data into a computer incorporated in a camera body or reading data from the computer. According to the present invention, there is provided an information processing device which is inserted between the camera body and an accessory device to execute writing of data into the computer of the camera body or reading of data from the computer and to execute data communication between the computer of the camera body and the accessory device.

Abstract: In a control unit having a external storage device, a method for selecting a loading method of data stored in the cache memory into the cache memory in accordance with an access pattern to the data, and an apparatus therefor are disclosed. The selection of the loading method is selection of control mode or procedure in accordance with the loading method, and it is attained by a learn function.

Abstract: When recording records into the IC memory group of a magnetic disk subsystem the records being composed of a count area of a fixed length, key area of a variable length and a data area of a variable length, data of a special format which is judged by ECC check to be an abnormal data is written at the top of the count area in each record. When reading an object record from the IC memory group, it is judged by ECC check whether or not the read data is an abnormal one. When the read data is judged to be an abnormal one, the read data is compared with the data of special format, and when there is found a coincidence between them, it is recognized that the read data are at the top of the count area. When writing data, data which are judged by ECC check to be a normal are suffixed to data which are judged by ECC check to be abnormal. When the read data are judged by the ECC check to be abnormal and judged by a next ECC check to be normal, it is recognized that the read data are at the top of the count area.

Abstract: In a cooling system for a multi-cylinder engine, a main gallery is provided around outer peripheral portions of the plurality of cylinder bores upstream a block-side coolant jacket to commonly surround the cylinder bores, and an upstream coolant gallery is provided between the block-side coolant jacket and the main coolant gallery to separately surround each of outer peripheries of the cylinder bores. The upstream coolant gallery and the main coolant gallery is in communication with each other through a constriction communication passage provided around the outer periphery of each of the cylinder bores, and the upstream coolant gallery is further in communication with an upstream end of the block-side coolant jacket.

Abstract: An oil pan structure for the cylinder block of an internal combustion engine for storing lubricating oil in the oil pan. A volume body submergible at least partly below the oil level for displacing a volume of oil when the oil is titled by displacement to one side in the oil pan as a result of the running condition of the motor vehicle having the engine with the oil pan structure, such as during turning, acceleration, deceleration or banking. The volume body has an inlet opening positioned near an allowable upper limit oil level for a predetermined maximum oil tilting condition for introducing into the volume body the lubricating oil which exceeds the allowable upper limit oil level. The oil pan structure also has an oil discharge passage from the lower portion of the volume body.

Abstract: A water-insoluble black pigment produced by reacting C. I. Solubilized Sulphur Black 1 with a salt-forming agent selected from the group consisting of inorganic acid salts of alkylamine, alkoxyalkylamine, alkanolamine, carboxyalkylamine, alkylcarboxamide, allylamine, amide of unsaturated carboxylic acid, cyclic amine, cycloalkylamine, oxacycloalkylamine, morpholine derivative, arylamine, aralkylamine, pyridine derivative, quinoline, phthalimide, DL-.alpha.-amino-.epsilon.-caprolactam and .epsilon.-aminocaprolactam, and ammonium salt of the formula (1): ##STR1## wherein A.sub.1, A.sub.2, A.sub.3 and A.sub.4 each represent an alkyl or phenyl group and X- represents an anionic group.The water-insoluble black pigment is usable as a colorant for printing ink, ink for jet printers, dot printer ribbon, and melt-transfer type printer, a charge-regulator for toner used on electrostatic recording system, a laser marking agent, a colorant for resin, an infrared absorber and the like.

Abstract: When a disk controller receiving an access from a host computer to a disk device is connected with a disk connection device, if a relevant disk is used by another disk controller, positioning data for seek, set file mask and set sector are queued in a common memory. When the relevant disk becomes free, the disk controller reads the queued information and requires the disk device for positioning. A request of a reconnection with the host computer is issued from the disk controller informed by the disk unit, which has finished positioning at the position specified by the positioning data, search of an aimed record and a read/write operation of transmitted data are effected without any new intervening of an access program of the host computer.

Abstract: There is disclosed an error recovery apparatus and method for a data processing system having (1) a peripheral unit, for instance, a magnetic disc unit, for storing data in a plurality of blocks each having a unique address, (2) a main memory for storing data read from the peripheral units, and (3) a controller for controlling the transfer of the data blocks from the peripheral unit to the main memory by execution of a single channel command word (CCW) chain. When an uncorrectable error occurs in the transfer of a second or subsequent data block of the plurality of data blocks (not the first data block), the processor produces a new CCW chain to re-read the data block in error in addition to all the data blocks subsequent to the data blocking error and store these data blocks in the memory under the control of the new CCW chain.

Abstract: A speed governor for a camera having a first speed governing means arranged to synchronously drive with an increased speed a driving member which drives a high speed operating member to a predetermined position and a second speed governing means arranged to brake the driving force of the driving member.