| 摘要 |
FIELD: physics. ^ SUBSTANCE: method realises full, as in usual telecommunication, duplex, by providing the first user speech interruption by the second user speaking without pauses from the other line end at average loudness on receiving line end not less than sixty decibels relative to zero sound pressure. Thus, the second user interrupting speech of the first user is not less than three metres away from electro-acoustic converters. Such a quality of loud-speaking communication is achieved due to electro-acoustic sound radiator propagating speech vibrations perpendicularly to speech vibrations received by electro-acoustic sound receiver with symmetry axes of diagrams of speech vibrations orientation of electro-acoustic sound radiator and electro-acoustic sound receiver in one plane, electro-acoustic sound radiator and electro-acoustic sound receiver being acoustically isolated inside of loud-speaker casing. ^ EFFECT: considerable intensification of transmit-receive paths, simplification of circuit design of telephone set assemblies. ^ 3 dwg |
