Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Reexamination Certificate
2007-01-23
2007-01-23
Ngo, Chuong D. (Department: 2193)
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
C708S504000, C708S605000, C708S656000
Reexamination Certificate
active
10291218
ABSTRACT:
The invention provides circuitry for carrying out a square root operation and a division operation. The circuitry utilizes common iteration circuitry for carrying out a plurality of iterations and means for identifying if an square root operation or a division operation is to be performed. The iteration circuitry is controlled in accordance with whether a square root or division operation is to be performed.
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Oberman et al. “Division Algorithms and Implementations”, IEEE Transactions on Computers, vol. 46, No. 8, pp. 833-854, Aug. 1997.
Matsubara, et al., “30-ns 55-b Shared Radix 2 Division and Square Root Using a Self-Timed Circuit”, XP-548639A,IEEE Comp. Soc. Press; vol. SYMP. 12., Jul. 19, 1995.
International Search Report, EP 01309851, dated Aug. 30, 2002.
Jenkens & Gilchrist PC
Ngo Chuong D.
STMicroelectronics Limited
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