发明名称 |
MINIMUM TONE SEPARATION CONSTRAINED MFSK SCHEME FOR ULTRASONIC COMMUNICATIONS |
摘要 |
A method of encoding a plurality of data signals is disclosed. The method includes selecting a set of M ultrasonic frequencies, wherein each of the M ultrasonic frequencies differs from an adjacent frequency by at least a first frequency spacing, and wherein M is a positive integer. An encoder receives the plurality of data signals. Each of the plurality of data signals is encoded by a respective set of Q of the M ultrasonic frequencies, wherein Q is a positive integer less than M. A minimum frequency separation between any pair of the Q ultrasonic frequencies of any respective set is greater than the first frequency spacing. |
申请公布号 |
US2017099114(A1) |
申请公布日期 |
2017.04.06 |
申请号 |
US201514969330 |
申请日期 |
2015.12.15 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
DONMEZ MEHMET ALI;DABAK ANAND GANESH;KIM IL HAN;SCHMIDL TIMOTHY MARK |
分类号 |
H04B11/00 |
主分类号 |
H04B11/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method of encoding a plurality of data signals, comprising:
selecting a set of M ultrasonic frequencies, wherein each of the M frequencies differs from an adjacent frequency by at least a first frequency spacing, and wherein M is a positive integer; receiving the plurality of data signals; and encoding each of the plurality of data signals by a respective set of Q of the M ultrasonic frequencies, wherein Q is a positive integer less than M, and wherein a minimum frequency separation between any pair of the Q frequencies of any respective set is greater than the first frequency spacing. |
地址 |
Dallas TX US |