| 摘要 |
A system and method for data encoding, the method comprising the steps of analyzing a group of bits to be encoded, the bits representing multiple voltage states having a high value and a low value, mapping (202) the group of bits into an encoded string (206) that is less than twice as long as an original subgroup (200), yet has a DC component midway between the high and low voltage values, and transmitting (208) the encoded string. Upon receiving the transmission, a receiver (210) maps the encoded string of bits back to the original subgroup, allowing the data carried thereby to be interpreted and used. The improved encoding technique may use encoding tables or encoding algorithm, and is particularly useful in low cost digital spread spectrum 915 MHz ISM band data radios.
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