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In this paper, we investigate if a computer-supported collaborative brainstorming environment for programming design can promote students' creativity. We developed a web-based learning environment to foster the competence of innovation, one of the essential competencies required for today's software development. The proposed system includes the modules of creative thinking skills and instructional...
In this paper, a high throughput context-based adaptive variable length code (CAVLC) encoder design with two-path parallel coefficients procedure is developed for H.264/AVC with block based pipelined and parallel processing schemes. By the two-pipe parallel coefficients processing, the proposed block processing based CAVLC encoder only requires 65 encoding cycles/macroblock (MB) on average. Compared...
Test points provide additional control to design logic and can improve circuit testability. Traditionally, test points are activated by a global test enable signal, and routing the signal to the test points can be costly. To address this problem, we propose a new test point structure that utilizes controllability don't-cares to generate local test point activation signals. To support the structure,...
Music Information Retrieval (MIR) is a crucial topic in the domain of information retrieval. According to major characteristics of music, Query-by-Humming system retrieves interesting music by finding melody that contains similar or equal melody to the humming query. Basing on the designed fuzzy inference model a novel Query-by-Humming/Singing system is proposed to extract pitch contour information...
Reset is one of the most important signals in many designs. Since reset is typically not timing critical, it is handled at late physical design stages. However, the large fanout of reset and the lack of routing resources at these stages can create variant delays on different targets of the reset signal, creating reset recovery problems. Traditional approaches address this problem using physical design...
Spectrally precoded orthogonal frequency-division multiplexing with cyclic prefix (SP-CP-OFDM) and SP-CP-OFDM multiple access (SP-CP-OFDMA) are investigated in this paper. A general constraint on spectral precoding is developed for both SP-CP-OFDM and SP-CP-OFDMA signal formats with unconstrained guard ratios and arbitrary input data statistics to ensure very small power spectral sidelobes decaying...
The orthogonal variable-spreading-factor (OVSF)-CDMA systems can support multimedia applications with different bandwidth requirements. Code management schemes, including code placement and replacement, significantly impact the code utilization of the system. Many researches have studied these two closely related problems and are solving them independently. For replacement, the optimality concerns...
In JPEG2000, embedded block coding with optimized truncation (EBCOT) requires a lot of computations. To enhance the performance of EBCOT, an efficient EBCOT algorithm is proposed. This algorithm consists of pass-prediction and pass-propagation. Pass prediction predicts the pass state in the next bit-plane. In particular, pass propagation generates the state of neighboring passes in the next bit-plane...
A JPEG XR chip for HD-Photo is implemented with 25 mm2 area in TSMC 0.18 um CMOS 1P6M technology at 100 MHz. According to the simulation results, the 4:4:4 1920x1080 HD-Photo 20 frames/sec can be encoded smoothly.
Intention is an important factor to drive human behavior. With a certain intention, an action becomes more natural and reasonable. In this paper, an agent with intention, which not only possesses facial expressions, hand gestures, body motions, but also holds memory and personality, is presented. The agent exploits the social dialogue to show intention and its care for students in a learning system...
From hardware point of view, system and RTL low power and power aware design techniques are applied to the DVB-T/H baseband inner receiver. In RTL design, we use pre-computation, differential encoding, hardware sharing, time-multiplexing R/W of memory, low power arithmetic architecture so that each block can reduce power from 3% to 26%. In system level, the proposed DPM (dynamic power manager) is...
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