Abstract: A digital signal processor performs a predetermined operation on a digital signal based on data, such as coefficient parameters and programs, and outputs the processed digital signal to an external reproducing device. The digital signal is processed during a signal processing period and data is transferred and rewritten during an information transfer period. The digital signal processor generates a reference processing cycle having a period longer than the signal processing period and the information transfer period combined. The length of the signal processing period and the information transfer period are adjusted within the reference process cycle, and the signal processing and data transfer are performed in a time sharing manner via a common internal bus. When data is changed, the digital signal is outputted without being processed to an external reproducing device to maintain the continuity of the signal output.

Abstract: A method of determining tenascin in a cerebrospinal fluid sample by immunoassay, etc. is disclosed. The tenascin level in the cerebrospinal fluid serves as a glioma marker and thus the selective diagnosis of glioma is possible.

Abstract: A sampling frequency converter includes an oversampling circuit for oversampling an input sample train, a Random Access Memory (RAM), a write control circuit for writing oversampled data in the RAM with a clock synchronized with the oversampled data, a sampling frequency ratio measuring circuit for measuring a frequency ratio of a sampling frequency of the input sample train and a sampling frequency of an output sample train, a read control circuit for reading from the RAM the oversampled data used for obtaining interpolation data at two points before and after an output sample value which realizes the measured sampling frequency ratio by a polynomial interpolation, a polynomial interpolation circuit for obtaining the interpolation data at the two points by the polynomial interpolation on the basis of the oversampled data read from the RAM by the read control circuit, and a linear interpolation circuit for linear-interpolating between the polynomial interpolation data at the two points and thereby obtaining t

Abstract: A Centronics type interface comprising a switching circuit selectively outputting one of two input signals having a timing relationship such that only during the time one input signal is active, the other input signal is active according to the state of a select signal, a pulse generating circuit outputting a signal for a predetermined time from the rising edge of a signal outputted from the switching circuit, and a signal selecting circuit outputting one of the other input signals and a signal outputted from the pulse generating circuit, which can hold one input signal and the signal outputted from the signal selecting circuit in a desired timing relationship.

Abstract: An image forming apparatus includes a paper stacking section for stacking a plurality of paper sheets cut to a given size.

Abstract: A method for producing character patterns by planting a bit pattern of a specified character into a bit map memory. The character-bit pattern corresponding to each specified character is read out of a storage region in a font memory. The storage region is composed of a plurality of regions each of which stores the smallest possible character-bits for the individual pattern to be planted.

Abstract: An oil lubricant for cold plastic processing of metallic material obtained by compounding either one or both types of polymers of 2-ethyl polyacrylate-hexyl ester and polymethacrylic acid lauryl ester with one or two types of oiliness improvers selected from the group consisting of refined lard, oleic acid, phosphate, hindered ester, isostearic acid, and C.sub.18 saturated higher alcohol and which are liquid at room temperature and which are compatible with the polymers. The oiliness improver is compounded as a thinning oil at a specified composition ratio.

Abstract: A cold working lubricant for metallic conduits in the form of a liquid wherein butyl acrylate ester-methyl methacrylate ester copolymer of 10-40 in resin acid value and -10.degree. to 20.degree. C. in glass transition temperature is emulsified and dispersed; an emulsified product of the straight chain saturated fatty acid or its ester with a melting point of 30.degree.-70.degree. C. can be further added thereto.

Abstract: A laser recording apparatus has an image control circuit which allows for vertical or horizontal straight lines to be printed in spaces between lines without increasing the capacity of the memory region of the memory means of the apparatus. The image control circuit includes memory for storing character data, character patterning circuitry for converting the character data into character patterns which have memory regions for storing character data, control circuitry for reading character data stored in the peripheral portions of the memory regions to read such character data as straight lines in the spaces between character patterns and a central processing unit to control the various circuitry.

Abstract: A document reading device comprising a document stand having a document placing surface and an optical reading means for optically reading the surface of a document placed on the document placing surface. The device further comprises a guide member defining a guide passage extending in a direction toward and away from the document placing surface, an oscillating member mounted such that its one end can reciprocate freely along the document placing surface in a predetermined scanning direction and in a direction opposite to it and the other end can freely reciprocate along the guide passage, and a driving source for oscillating the oscillating member which is capable of moving said one end of the oscillating member at a substantially constant speed in the scanning direction. The optical reading means is provided in the oscillating member.

Abstract: A recording apparatus has a printer mechanism for printing images successively on sheets of copying paper, and an image control circuit for delivering image information controllably to the printer mechanism so as to enable the latter to print the images successively. The image control circuit includes a plurality of page memories each for storing image information per single page, a first changeover switch for writing image information selectively into the page memories, and a second changeover switch for reading image information selectively from the page memories. When a sheet of copying paper is jammed in the printer mechanism, a microcomputer system controls the second changeover switch to select a switching mode to read an item of image information out of one of the page memories which stores the item of information to be printed on the jammed sheet of copying paper, for thereby allowing the image to be printed in a shorter period of time after paper jam clearance.