发明名称 |
Extension subordinate machine system and signal relaying method |
摘要 |
An extension subordinate machine system enabling high-accuracy correction of the cable loss by adjusting the gain by using the pilot signal and further enabling high-accuracy correction of the loss caused by distribution by a distributor even when a relay device adaptor is connected to the extension subordinate machine through the distributor. With this system, a main machine control section (201) outputs a pilot signal generated by a pilot signal generating section (203) when a switching section (205) sets a measurement mode. A pilot detecting section (215) detects the reception level. A control section (216) detects the pilot signal and sets the attenuation factor according to the reception level of the detected pilot signal. A variable attenuator (206) attenuates the up-link signal and the down-link signal at the set attenuation factor to adjust the gain. |
申请公布号 |
US8081594(B2) |
申请公布日期 |
2011.12.20 |
申请号 |
US20070516773 |
申请日期 |
2007.11.22 |
申请人 |
TSURUOKA RIE;OODACHI TOSHIAKI;HIRANO YOSHITERU;SHIOZAKI YOSHIYUKI;UCHIDA NAOKI;SHIOHARA MASAFUMI;PANASONIC CORPORATION |
发明人 |
TSURUOKA RIE;OODACHI TOSHIAKI;HIRANO YOSHITERU;SHIOZAKI YOSHIYUKI;UCHIDA NAOKI;SHIOHARA MASAFUMI |
分类号 |
H04J3/08 |
主分类号 |
H04J3/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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