发明名称 |
Pulse transmission transmitter including a higher order time derivate filter |
摘要 |
Systems and methods for pulse-transmission low-power communication modes are disclosed. A pulse transmission transmitter includes: a clock; a pseudorandom polynomial generator coupled to the clock, the pseudorandom polynomial generator having a polynomial load input; an exclusive-OR gate coupled to the pseudorandom polynomial generator, the exclusive-OR gate having a serial data input; a programmable delay circuit coupled to both the clock and the exclusive-OR gate; a pulse generator coupled to the programmable delay circuit; and a higher order time derivative filter coupled to the pulse generator. The systems and methods significantly reduce lower-frequency emissions from pulse transmission spread-spectrum communication modes, which reduces potentially harmful interference to existing radio frequency services and users and also simultaneously permit transmission of multiple data bits by utilizing specific pulse shapes.
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申请公布号 |
US6625229(B2) |
申请公布日期 |
2003.09.23 |
申请号 |
US20020082773 |
申请日期 |
2002.02.25 |
申请人 |
LOCKHEED MARTIN ENERGY RESEARCH CORPORATION |
发明人 |
DRESS, JR. WILLIAM B.;SMITH STEPHEN F. |
分类号 |
H04B1/69;H04L25/03;H04L25/49;(IPC1-7):H04L27/04 |
主分类号 |
H04B1/69 |
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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