Programmable error correcting apparatus within a paging receiver

Details Programmable error correcting apparatus within a paging receiver Programmable error correcting apparatus within a paging receiver

1989-03-13

1991-09-24

Jablon, Clark A.

Excavating

371 371, G06F 1110

Patent

active

050519999

ABSTRACT:
A paging receiver receiving message information having one of a plurality of (BCH) code word structures has a programmable error correcting apparatus for correcting bit errors within the message information. The programmable error correcting apparatus may be configured in response to identifying a signalling system and the code word structure corresponding to ther signalling system, or in response to changes in the code word structure within the message. A simplified error correcting apparatus may correct a single bit error within a code word structure. The programamble error correcting apparatus is capable of correcting any two bit error combination within the code word structure and contains sequential and combinational logic circuits. The programmable error correcting apparatus is integrated together with a microprocessor on a monolithic integrated circuit.

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A Standard Code for Radiopaging (POCSAG), 7/1979, pp. 4-40.
A Decoding Procedure for Multiple-Error-Correcting Cyclic Codes, Tadao Kasami, Student Member, IEEE Information Theory, 1964, pp. 134-138.

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