Coded data generation or conversion – Digital code to digital code converters – Byte length changed
Patent
1993-06-01
1994-11-22
Hoff, Marc S.
Coded data generation or conversion
Digital code to digital code converters
Byte length changed
341 67, H03M 740
Patent
active
053672992
ABSTRACT:
A method for 5-bit chunk encoding of bit serial data by a data processor handling data in 8-bit byte segments, the method comprising the steps of:
setting a bit shift counter (bsc) to zero;
receiving data from the bit serial data to be stored into 8-bit bytes, such that at least two 8-bit bytes are available, the bit serial data stored in the 8-bit bytes from the most-significant bit to least significant bit;
shifting left the data in the first byte, by the value of the bsc;
encoding the data contained in the first two bytes in two 5-bit chunks;
incrementing the bsc by an increment of 2, and if the bsc is then equal to 8, resetting it to zero;
offsetting the data to the next whole byte boundary of the 8-bit byte data, dropping already processed bytes; and
so long as there is data, repeating the steps of receiving, shifting, incrementing, and offsetting.
REFERENCES:
patent: 3761697 (1973-09-01), Stanley
patent: 4623874 (1986-11-01), Thoma
patent: 4623983 (1986-11-01), Meguerdichian
patent: 4855742 (1989-08-01), Verboom
patent: 5079548 (1992-01-01), Fujiyama et al.
Aaker Mark A.
Apple Computer Inc.
Hoff Marc S.
LandOfFree
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