发明名称 |
TRANSMISSION DEVICE AND BANDWIDTH ADJUSTMENT METHOD |
摘要 |
A transmitting apparatus is disclosed that adjusts an occupied bandwidth for each transmission rate, and thus can prevent deterioration of an S/N ratio while preventing a situation in which frequency components are cut and cannot be demodulated, without increasing the manufacturing cost. The transmitting apparatus is capable of performing communication at multiple different transmission rates. A modulation section modulates transmission data to generate a modulated signal and adjusts an occupied bandwidth in a passband of a channel selection filter for each of the transmission rates. An occupied bandwidth control section outputs to the modulation section bandwidth setting information that causes a bandwidth to approximate to the bandwidth of a passband of a channel selection filter based on the inputted transmission rate setting information. An RF transmitting section transmits the modulated signal obtained by adjusting the occupied bandwidth via an antenna. |
申请公布号 |
US2015071331(A1) |
申请公布日期 |
2015.03.12 |
申请号 |
US201414394674 |
申请日期 |
2014.03.13 |
申请人 |
Panasonic Corporation |
发明人 |
Morishita Tatsuya |
分类号 |
H04L1/00;H04L27/12;H04B1/7097 |
主分类号 |
H04L1/00 |
代理机构 |
|
代理人 |
|
主权项 |
1. A transmitting apparatus that performs communication at a plurality of different transmission rates, the transmitting apparatus comprising:
an adjusting section that modulates transmission data to generate a transmission signal, and that adjusts, for each of the transmission rates, an occupied bandwidth in a predetermined band of the transmission signal such that the occupied bandwidth approximates to a bandwidth of the predetermined band; and a transmitting section that transmits the transmission signal whose occupied bandwidth has been adjusted by the adjusting section. |
地址 |
Osaka JP |