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近年来,美国、日本和西欧等国的通 信技术突飞猛进,它们最新研制的ATM技术、ISDN技术、多媒体技术、计算机及网络技术各有千秋。这些先进技术的研制和应用不仅提高了现有电话、传真和电视的效果,还能使未来的通信将声音、数据和图像一次到位的传送到千家万户,从而彻底改变传统的通信方式,使世界电信技术迅速朝着通信技术与信息技术融合、通信设备与计算机设备融合的方向发展。 西方各大公司在ATM(异步时间多路传输)技术及其应用上都有重大突破。这种技术可以实现声音、数据和图像的同时传输。这种传输方式不仅容量大、速度快,而
In recent years, the communications technologies in the United States, Japan and Western Europe have made rapid progress. Their newly developed ATM technology, ISDN technology, multimedia technology, computer and network technologies have their advantages and disadvantages. The development and application of these advanced technologies not only enhance the effectiveness of existing telephones, faxes and televisions, but also enable future communications to transmit sound, data and images to every household in one go, thus completely changing the traditional means of communication. The telecommunication technology in the world has rapidly moved toward the integration of communication technology and information technology and the integration of communication equipment and computer equipment. Major Western companies in the ATM (asynchronous time multiplexing) technology and its applications have a major breakthrough. This technology enables the simultaneous transmission of sound, data and images. This transfer is not only large capacity, fast, and