发明名称 Phase calculation circuitry in digital television receiver
摘要 An angle alpha from 0 DEG to 45 DEG is determined from an equation alpha DEG =LK iota (tan alpha ) iota , where iota is an index varying from 0 to n. The value of tan alpha is arrived at by dividing the smaller of the I,Q magnitude values by the larger of the two magnitude values. The angle alpha from 0 DEG to 45 DEG is transposed to the corresponding phase angle theta of the vector sum C of the orthogonal I,Q signals over the full range of values from 0 DEG to 360 DEG .
申请公布号 US4710892(A) 申请公布日期 1987.12.01
申请号 US19840666020 申请日期 1984.10.29
申请人 RCA CORPORATION 发明人 FLING, RUSSELL T.
分类号 G01R25/00;H04N9/64;(IPC1-7):G06F7/556 主分类号 G01R25/00
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