Patent ID: 9086275
Filing Date: 2015-07-21
Classification: G01C,G01S

Abstract:
1. A method of processing an analog signal, the method comprising: transmitting, at a transmission time, an infrared pulse from an infrared transmitter towards an object; capturing, at a sampling frequency, a plurality of samples in the analog domain, each of the plurality of samples having an amplitude and comprising a portion of a reflection of the infrared pulse from the object, such that the plurality of samples represents the reflection at a plurality of sequential times after the transmission time; sequentially storing each of the plurality of samples in a corresponding plurality of analog storage elements; retrieving, at a retrieval frequency, each of the plurality of stored samples from the plurality of analog storage elements, the retrieval frequency being slower than the sampling frequency; selecting at least one sample from among the plurality of samples, and determining the reception time or times, relative to the transmission time, at which the at least one selected sample was received.