| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To send and receive a control signal multiplexed on a main signal between redundancy configuration common part packages and respective individual packages, attain high-density mounting of an apparatus and miniaturization, ensure synchronicity of the redundancy constitution package, and switch of non-interruption with high real-time property, in a congregation transmission apparatus, and ensure synchronous and uninterruptible switching method of the redundancy configuration packages. <P>SOLUTION: An individual package (IFPKG) calculates the phase difference of respective sending signals from common part packages SWPKG #0 and #1 in a phase comparison part 2-11, and then transmits the phase difference signal from a control signal sending part 2-12 to common part packages. The common part packages adjust sending timing so that the phase difference becomes nearly zero by a sending signal control part 2-22, based on the phase difference information. In state ensuring synchronism, a system switching control information is sent from a control information sending part 2-23 to a control information receiving part 2-13 of the individual package, and the system is switched controlling a selector 2-14 by the system switching control information. <P>COPYRIGHT: (C)2004,JPO</p> |
