⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种用于双耳助听器的ANSI S1.11 1/3倍频程滤波器组芯片，支持每耳双麦克风。通过采用电荷恢复逻辑设计，在约1MHz的低时钟频率下实现了13.8µW的超低功耗，解决了双耳多麦克风系统计算和功耗需求高的问题。
This paper presents an ANSI S1.11 1/3-octave filter-bank chip for binaural hearing aids with two microphones per ear. Binaural multimicrophone systems significantly suppress noise interference and preserve interaural time cues at the cost of significantly higher computational and power requirements than monophonic single-microphone systems. With clock rates around the 1MHz mark, these systems are ideal candidates for low-power implementation through chargerecovery design. At such low clock frequencies, however, charge-recovery logic suffers from short-circuit currents that limit its theoretical energy efficiency [1]. The chip described in this paper is designed in 65nm CMOS using a new chargerecovery logic, called zero-short-circuit-current (ZSCC) logic, that drastically reduces short-circuit current. It processes 4 input streams at 1.75MHz with a charge recovery rate of 92%, achieving 9.7× lower power per input compared
Hsi-Shou Wu, Zhengya Zhang, Marios C. Papaefthymiou
University of Michigan, Ann Arbor, MI