| 摘要 |
A user input method and apparatus includes, a two line object imaging sensor (e.g. a capacitive sensor capable of detecting finger print details) having a primary line scan-sensor (230 ) providing a primary line scan sensor output and a secondary line scan-sensor (250) providing a secondary line scan-sensor output, representing pixels in a current primary scan row and a current secondary scan row, and [what is adapted?] adapted to scan an object; storing for each scan time each current primary line scan-sensor output and each current secondary line scan-sensor output and a correlation unit correlating at least one of the current representations of pixels in a primary line sensor output with stored representations and the current representations of pixels in a secondary line sensor output with stored representations and the correlation unit providing as an output a motion indicator. Current primary line representation may also be correlated with past primary line representations as can current secondary with past secondary so as to determine motion. |
