Patent ID: 7847233
Filing Date: 2010-12-07
Classification: H01L,H04N

Abstract:
1. A physical information acquiring device that acquires physical information for a predetermined purpose on the basis of the signal that is acquired under predetermined detection conditions for a physical quantity using a portion for physical quantity distribution detection, the portion for physical quantity distribution detection including a detector that detects change information corresponding to a change in a physical quantity made incident on the detector and having unit components that output a signal based on the change information detected by the detector arranged in a predetermined order, the physical information acquiring device comprising: a signal converter that converts a carrier signal into a signal related to a frequency on the basis of change information detected by a detector a selection switching unit allocates the signal converter to plural unit components or allocates one output terminal to plural signal converters, an AD conversion processor that converts, with the change information detected by the detector set as an analog processing object signal, a differential signal component of a reference component and a signal component of the analog processing object signal including the reference component and the signal component into digital data, and the AD conversion processor includes count processors that perform count processing in one of a down-count mode and an up-count mode and hold a count value at a point when the count processing is completed, wherein,