释义 |
broadband 宽(频)带 In communications, a frequency band having a bandwidth greater than a voice-grade channel (4kHz), that divisible into several narrower bands so that different kinds of transmissions such as voice, video, and data transmission can occur at the same time, and therefore capable of higher-speed data transmission. 在通信技术中,一种比音频信道(4kHz)更宽的频带。它可划分成几条较窄的频带,以使 不同类型的传输,如音频、视频及数据传输,可在其上同时进行,因此具有较高速的数据 传输能力。 |