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This paper examines the improvement in performance of rotated and normally oriented heads by using the quasi-cyclic low-density parity-check (QC-LDPC) code in a two-dimensional magnetic recording (TDMR) system. This paper indicates that the significant improvement in performance in the rotated head compared to the normally oriented head can be attributed to the larger amplitude of its dibit response...
In this paper, a novel test technique is proposed to achieve C-testable DFT designs for arithmetic circuits. Base on famous iterative-logic-array (ILA) test scheme, basic bijective cells (one-to-one mapped I/O function) for adder, subtracter, adder-subtractor and multiplier are proposed. In particular, these basic cells are always bijective for any word-length n. Thus the bijective cells can be easily...
The refractive index of salt water changes corresponding to the variation of salinity. Based on a differential refractometer, the salinity can be measured due to beam deviation, and the influence of temperature on the measurement results is reduced effectively. Beam deviation caused by salinity change is detected by a fiber-optic array and recorded by a charge-coupled device. According to the Gauss...
H.264/AVC is the latest video compression standard with highest coding efficiency, and the chip-area are increased significantly, especially the Integer-Motion-Estimation (IME) block. Thus the testability of H.264-IME is becoming more and more important. Currently, the scan-chain with Automatic Test Pattern Generation (ATPG) method is very popular for testing H.264-IME block, but the test time usually...
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