Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Reexamination Certificate
2001-09-27
2004-04-20
Mai, Tan V. (Department: 2124)
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
Reexamination Certificate
active
06725246
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to the field of data processing. More specifically, the invention relates to encoding.
2. Background of the Invention
Typically, mathematical and engineering systems use a decimal system and/or binary system to represent numbers and to perform calculations. Over time, alternative numeration systems have been developed for different applications. Such numeration systems include fixed-radix, mixed-radix and mixed-base.
A fixed-radix numeration system has a constant radix for all positions of a sequence of digits. In fixed-radix numeration systems, the weights of successive positions are successive integral powers of a single radix, multiplied by the same factor. Examples of fixed-radix numeration systems include decimal, binary and hexadecimal systems.
A mixed-radix numeration system is a radix numeration system in which all radices of each position of a sequence of digits are constant, but not necessarily the same. The mixed-radix numeration system is a more general numeration system in which there may not be integral ratios between the radices of all digits. For example, time is measured with a mixed-radix numeration system. Hours are measured in tens of minutes and minutes having radices 6 and 10 respectively.
In a mixed-based numeration system, numbers are represented as the sum of a sequence of position values. Each position consists of a mantissa and a base. The base of a given position is constant for a given application, but the bases across positions are not necessarily integral ratios between the radices of all the positions. For example, years are measured with a mixed-base numeration system. Years are measured with tens of months and months having bases 12:10:1.
The above numeration systems are satisfactory methods to represent numbers, but are inefficient for modeling operation sequences. The above numeration systems are also inefficient for transmission of data in some special cases.
REFERENCES:
patent: 4963869 (1990-10-01), Falk
patent: 5307173 (1994-04-01), Yuen et al.
patent: 5335079 (1994-08-01), Yuen et al.
patent: 5603022 (1997-02-01), Ng et al.
patent: 5678043 (1997-10-01), Ng et al.
patent: 6549719 (2003-04-01), Mankovitz
patent: 1 098 520 (1992-09-01), None
Ford, W. et al., “Data Structures with C++,” Chapter 5, pp. 207-221, Prentice Hall, 1996.
General Aspects of Digital Transmission Systems—Dual Rate Speech Coder For Multimedia Communications Transmitting at 5.3 and 6.3 kbit/s, ITU-T Recommendation G.723.1, Mar. 1996.
Blakely , Sokoloff, Taylor & Zafman LLP
Intel Corporation
Mai Tan V.
LandOfFree
Method and apparatus for varying-radix numeration system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for varying-radix numeration system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for varying-radix numeration system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3207658