Data compression method

Details Data compression method Data compression method

2011-03-22

2011-03-22

Mai, Tan V (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S490000, C708S495000

Reexamination Certificate

active

07912881

ABSTRACT:
A method for transmitting the value of a parameter in a compressed form, the method comprising the steps of: accepting successive numbers representing the value of a parameter; manipulating each number, the manipulation comprising placing the number in a form comprising a mantissa and an exponent, and defining a transmission mantissa to be transmitted; transmitting to a receiver, in turn, the transmission mantissas only of the successive numbers; and receiving the transmission mantissas of the successive numbers at the receiver, characterised by the steps of maintaining a record, at the receiver, of a receiver variable, the receiver variable initially corresponding to the exponent of an initial number; formulating at the receiver, for each received transmission mantissa, a reconstructed number comprising at least the transmission mantissa and an exponent corresponding to the receiver variable; and altering the receiver variable in a first manner if the transmission mantissa of the current number fulfils a first criterion, or altering the receiver variable in a second manner if the transmission mantissa of the current number fulfils a second criterion.

REFERENCES:
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patent: 5155772 (1992-10-01), Brandman et al.
patent: 6028893 (2000-02-01), Schreib
patent: 6819992 (2004-11-01), Giordano
patent: 2004/0146106 (2004-07-01), De Lameillieure
patent: 2006/0284747 (2006-12-01), Moriya
patent: 3303006 (1984-08-01), None

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