Tso-Bing Juang

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Year 2009 marks the completion of 50 years of the invention of CORDIC (COordinate Rotation DIgital Computer) by Jack E. Volder. The beauty of CORDIC lies in the fact that by simple shift-add operations, it can perform several computing tasks such as the calculation of trigonometric, hyperbolic and logarithmic functions, real and complex multiplications,(More)
An efficient implementation of discrete cosine transform (DCT) computations are presented based on the so-called shifted discrete Fourier transform (SDFT), a generalization of the conventional DFT (DFT). Due to the simple form of the factorized matrices, the derived architecture can be easily constructed from the cascade of only two types of parameterized(More)
Efficient addition of binary numbers plays a very important role in the design of dedicated as well as general purpose processors for the implementation of arithmetic and logic units, branch decision, and floating-point operations, address generations, etc. Several methods have been reported in the literature for the fast and hardware-efficient realization(More)
In this paper, we propose a high-performance logarithmic converter using novel two-region bit-level manipulation schemes. The proposed technique provides an area-time-efficient hardware implementation, since it avoids the need of a ROM by using simple arithmetic operations instead. Accuracy analysis shows that the proposed converter can achieve an error(More)
In this work, fast binary to binary-coded-decimal (BCD) code converters for decimal communications are proposed. By employing new recoding circuits, our proposed converters can perform fast and area-efficient conversions from binary inputs to decimal outputs to speed up decimal multiplications. Synthesis results show that our proposed converters can achieve(More)