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    • 4. 发明授权
    • Key telephone system with means for operatively connecting another key
telephone systems
    • 密钥电话系统,其具有用于可操作地连接另一个密钥电话系统的装置
    • US4641337A
    • 1987-02-03
    • US843707
    • 1986-03-25
    • Jouji TanakaTetunobu WatanabeYoshiji TanimotoMinoru Okumura
    • Jouji TanakaTetunobu WatanabeYoshiji TanimotoMinoru Okumura
    • H04M9/00H04Q5/20
    • H04M9/005
    • A key telephone system comprising a main equipment and a plurality of key telephones connected to the main equipment and comprising elements for operatively connecting another similar key telephone system. The main equipment in the key telephone system comprises a system call transmitting interface and a system call receiving interface which are connected through connecting lines to a system call receiving interface and a system call transmitting interface in a main equipment of another similar key telephone system, respectively. Each key telephone in both systems comprises an additional key for selecting the system call transmitting interface of its own main equipment. By use of the additional key in one key telephone, a speech path can be established between the one key telephone and another key telephone in another key telephone system through both main equipments and the connecting line. By operation of the additional key after operation of a holding key of a key telephone in a key telephone system, an office line call to the key telephone is transferred to a key telephone in the other key telephone system through the connecting line.
    • 一种密钥电话系统,包括主设备和连接到主设备的多个密钥电话,并且包括用于可操作地连接另一个类似的密钥电话系统的元件。 密钥电话系统中的主要设备包括系统呼叫发送接口和系统呼叫接收接口,它们分别通过连接线连接到另一个类似的密钥电话系统的主设备中的系统呼叫接收接口和系统呼叫发送接口 。 两个系统中的每个钥匙电话包括用于选择其主要设备的系统呼叫发送接口的附加密钥。 通过在一键式电话中使用附加密钥,可以通过两个主设备和连接线在一个密钥电话机和另一密钥电话系统中的另一个密钥电话之间建立语音路径。 通过在密钥电话系统中的密钥电话的保持密钥的操作之后操作附加密钥,通过连接线将密钥电话的办公线路呼叫转移到另一密钥电话系统中的密钥电话。
    • 5. 发明授权
    • Multi-beam feeding apparatus
    • 多光束供给装置
    • US5936591A
    • 1999-08-10
    • US811716
    • 1997-03-06
    • Yasuhiko YamasaHiroki ShokiMinoru Okumura
    • Yasuhiko YamasaHiroki ShokiMinoru Okumura
    • H01Q15/14H01Q1/28H01Q3/40H01Q13/00H01Q19/00H01Q21/30H01Q23/00H01Q25/00H01Q21/00
    • H01Q25/00H01Q3/40
    • A multi-beam feeding apparatus according to the present invention is a feeding apparatus for a multi-beam antenna comprising a reflector and a primary radiator comprising a plurality of element antennas, and the apparatus is provided with a plurality of beam forming networks for setting an excitation distribution relative to the element antenna necessary for every beam. Each beam forming network is connected via a combiner (a divider) disposed to every of all the element antennas. According to this construction, not only there is such an advantage that a variation of capacity of communication between the beams and the like can be flexibly responded, but also there are such effects that a beam forming network can be so simply constructed that the same systems are only combined, a power can be more effectively used, such a problem as a heat generation and the like can be reduced. Moreover, a plurality of missions can be easily fused. Thereby, communication can be more flexible, a power loss relating to a large power transmission can be easily solved, and an necessary excitation distribution can be easily set at a low cost.
    • 根据本发明的多光束馈送装置是一种用于多光束天线的馈送装置,包括反射器和包括多个元件天线的主辐射器,并且该装置设置有多个波束形成网络,用于设置 相对于每个波束所需的元件天线的激励分布。 每个波束形成网络经由布置在所有元件天线中的每一个的组合器(分频器)连接。 根据该结构,不仅具有能够灵活应答光束等之间的通信能力的变化的优点,而且具有这样的效果:波束形成网络可以简单地构造成使得相同的系统 只能组合起来,可以更有效地利用电力,可以降低发热等问题。 此外,可以容易地融合多个任务。 因此,通信可以更灵活,能够容易地解决与大功率传输相关的功率损耗,并且可以以低成本容易地设置必要的激励分配。