Serial data decoding using state machine with selectable decodin

Details Serial data decoding using state machine with selectable decodin Serial data decoding using state machine with selectable decodin

1993-05-26

1995-10-03

Shoop, Jr., William M.

Coded data generation or conversion

Digital code to digital code converters

Adaptive coding

341 63, 341 64, 341 65, 341 67, 341106, H03M 730

Patent

active

054555787

ABSTRACT:
A serial data decoding system is described in which a state machine (FIG. 5) is provided having a plurality of branching hierarchies of states, each branching hierarchy of states corresponding to a different decoding table. The state machine incorporates a memory 72 storing control data words (FIG. 7). A latch 74 stores the most recent control data word to be output from the memory. The memory 72 is addressed with a read address formed from a concatenation of the latched value 84, a table selecting word 86, Y/C and a received bit of serial data. When the state machine enters a state 88 corresponding to valid code, the current control data word is output as an identifier of that valid code.

REFERENCES:
patent: 5220325 (1993-06-01), Ackland et al.
KM Yang et al. IEEE TENCON '90: IEEE Region 10 Conf. on Computer & Comms. Systems (CAT No.: 90CH286602), pp. 551-554, vol. 2; 1990.

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