Method and apparatus for fax messaging in a selective call recei

Details Method and apparatus for fax messaging in a selective call recei Method and apparatus for fax messaging in a selective call recei

1994-07-27

1996-10-15

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Reduced time or bandwidth for static image communication

358427, 358433, 34082544, 382232, 382246, 382173, H04N 141

Patent

active

055660010

ABSTRACT:
A fax selective call receiver system (10) featuring compression of a fax message with an optimal one of a plurality of compression code-books (50). At least a portion (44) of a source document (26) is compressed with each of a plurality of code-books (50) and the smallest resulting data file is selected as the optimal compressed file. The compressed data file is transmitted to a selective call receiver (40) together with an index identifying the optimal code-book. The selective call receiver (40) stores each of the plurality of code-books and accesses the particular code-book for decompressing the data file on the basis of the received index. In an alternative embodiment, the fax message is divided into composing segments (SI1, SI2 and SI3) and each segment is compressed with each code-book to determine the optimal code-book for each segment.

REFERENCES:
patent: 4897733 (1990-01-01), Sakaguchi et al.
patent: 4920427 (1990-04-01), Hirata
patent: 4933770 (1990-06-01), DeSpain
patent: 5309526 (1994-05-01), Pappas et al.
patent: 5420692 (1995-05-01), Lin et al.

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