Abstract: A memory card includes an error-correction-code (ECC) controller for generating ECCs, an ECC memory for storing ECCs generated by the ECC controller and an address converter for converting between addresses of the ECC memory and those of a main memory for storing data. The ECC controller generates an ECC to be stored in the ECC memory when a control data is input and the address converter fetches a relationship between an address of the ECC memory at which the generated ECC is stored and that of the main memory at which the control data is stored. Upon reading data stored in the main memory, error check and error correction operations are executed for the control data.

Abstract: An electronic component supplying apparatus including a frame member, component supplying units each including a movable member movable along a reference line, first drive sections each provided on a corresponding one of the movable members of the units, a second drive section provided on the frame member, first control devices each provided on the corresponding one movable member, a power source, a second control device provided stationarily relative to the frame member, a supplying device which includes a first supplying section provided on the frame member and second supplying sections each provided on the corresponding one movable member, has no wire connection between the first supplying section and the each second supplying section, and supplies the electric energy from the power source to the each first control device, while permitting the one movable member to be moved along the reference line, and a transmitting device which includes a first transmitting section provided on the frame member and secon

Abstract: The encoder/decoder system uses encoder hardware to encode data symbols and form a data code word. To decode, the system uses the same encoder hardware to determine a residue r(x), i.e. ##EQU1## where C.sub.r (x) is the retrieved code word and g(x) is the generator polynomial. If the residue is all zeros, the ECC code word is error-free and the system need not calculate the error syndrome. If the residue is non-zero, the encoder hardware is used, with various switches in different settings, to include certain multipliers in and exclude other multipliers from the further decoding operations of encoding the residue symbols to produce partial error syndromes that are the coefficients of the error syndrome polynomial.