Data conversion method and apparatus for converting undefined le

Details Data conversion method and apparatus for converting undefined le Data conversion method and apparatus for converting undefined le

1991-04-02

1992-09-08

Hoff, Marc

Coded data generation or conversion

Digital code to digital code converters

To or from variable length codes

341 95, 341 60, H03M 740

Patent

active

051462206

ABSTRACT:
A data conversion method and an apparatus for the same which converts undefined-length image signal coded by a MH or MR method for facsimile equipment, etc. into fixed-length data. Coded undefined-length image data is inputted, and, in accordance with a bit length contained in the image data and with the number of the effective bits in the last byte, bits to be outputted from a barrel shifter are shifted. Control is performed to byte pack the bits of the last byte and the shifted bits outputted from the barrel shifter, and coded data is converted into data in byte units, thereby enabling high-speed byte packing.

REFERENCES:
patent: 4593267 (1986-06-01), Kuroda et al.
patent: 4819079 (1989-04-01), Takao
patent: 4914675 (1990-04-01), Fedele
patent: 4963867 (1990-10-01), Bertrand

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