发明名称 |
Communications Technologies |
摘要 |
A wireless communications device (124) including a first antenna (138) and oscillator means (140) for providing a carrier signal (110). There is further provided modulation means (142) for imposing a low level phase modulation on the carrier signal in accordance with a data signal to create a modulated signal, the modulation means (142) also for providing the modulated signal to the first antenna (138) for transmission. An exemplary application of the present invention is in respect of document management systems and methods of identification.
|
申请公布号 |
US2009075591(A1) |
申请公布日期 |
2009.03.19 |
申请号 |
US20070667525 |
申请日期 |
2007.03.19 |
申请人 |
MURDOCH GRAHAM ALEXANDER MUNRO;LITTLECHILD STUART COLIN |
发明人 |
MURDOCH GRAHAM ALEXANDER MUNRO;LITTLECHILD STUART COLIN |
分类号 |
H04B5/00;H04B7/00;H04W84/02 |
主分类号 |
H04B5/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|