MUMBAI, India, June 26 -- Intellectual Property India has published a patent application (202641071912 A) filed by Sethu Srinivasan An on June 10, 2026, for Priority Based Native Bcd Multiplication Using Vedic Urdhva Triyagbhyam For Conversion Free Decimal Arithmetic.
Inventor includes Sethu Srinivasan An.
The application for the patent was published on June 19, 2026, under issue no. 25/2026.
Abstract: ABSTRACT A method and circuit for multiplying Binary Coded Decimal (BCD) encoded decimal numbers without any binary conversion, using a priority-ordered set of ten hardware bit-manipulation rules integrated with the Vedic Urdhva Tiryagbhyam (Vertically and Crosswise) partial product summation pattern. For each pair of BCD digit operands, the digit with the lower hardware priority index — ordered as [0, 1, 2, 4, 8, 3, 5, 6, 9, 7] by gate complexity — is designated the Rule Selector, and the corresponding operation (zero, identity, left-shift by 1/2/3 positions, or addition) is applied to the other digit without any binary intermediate representation. Five of the ten digit values (0, 1, 2, 4, 8) require zero AND gates, eliminating the AND-gate array present in all conventional binary multipliers. For 3-digit operands, nine single-digit products are computed in parallel (Stage 1) and accumulated in five Carry-Save Adder steps following the Urdhva 1+2+3+2+1 diagonal pattern (Stage 2), producing a six-digit BCD-encoded product directly (Stage 3). Implemented on Xilinx Artix-7 FPGA (xc7al00tcsg324-l) and verified with 808 simulation test vectors, the proposed circuit achieves 27.5% reduction in LUT utilisation (95 versus 131), 66.7% reduction in logic power (0.001 W versus 0.003 W), and 52.2% reduction in estimated gate count (497 versus 1,040 NAND2-equivalent gates) compared to the conventional three-stage binary conversion pipeline. Applications include cardiac monitors, nutritional calculators, laboratory dosing systems, wholesale weighing scales, and aquarium dosing controllers where both operands are naturally bounded to three decimal digits.
Disclaimer: Curated by HT Syndication.
