Code error detecting and correcting apparatus

Details Code error detecting and correcting apparatus Code error detecting and correcting apparatus

1987-07-24

1989-09-12

Smith, Jerry

Excavating

371 402, G06F 1110

Patent

active

048667170

ABSTRACT:
An error detecting and correcting apparatus to detect and correct errors in code words to be subjected to a digital recording and reproducing operations by use of a recording medium. The apparatus is characterized by an interface method with respect to the host computer which generates digital information to be written on a recording medium or which utilizes the digital information read from the recording medium. The host computer supplies address data to a buffer memory circuit controlled by the error detecting and correcting apparatus through an address bus and a data bus connected between the host computer and the error detecting and correcting apparatus, thereby effecting input/output operations of digital data, namely, information codes. To this end, according to the apparatus of the present invention, only the information symbols necessary on the host computer side are allocated to a consecutive space of the buffer memory and the control codes and check symbols are controlled and are stored such that the information symbols are located in particular addresses of the buffer memory space.

REFERENCES:
patent: 4637023 (1987-01-01), Lounsbury
patent: 4646304 (1987-02-01), Fossati
patent: 4672613 (1987-06-01), Foxworthy

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