Patent Document ID: 20100141414
Application ID: 12592870
Patent Status: 0

Claim One:
1. A field watch apparatus comprising: an image capture unit for capturing a field image around a vehicle; an obstacle detector for detecting an obstacle around the vehicle; a display unit for displaying the field image captured by the image capture unit, wherein the field image has an obstacle mark superposed thereon when the obstacle is detected by the obstacle detector; a data acquisition unit for continually acquiring obstacle data from the obstacle detector after an initial detection of the obstacle; a storage unit for accumulating the obstacle data continually acquired by the data acquisition unit; and a change unit for changing the obstacle mark in association with the obstacle data, wherein the change unit displays multiple obstacle marks on the field image based on multiple pieces of the obstacle data in the storage unit, and the obstacle mark representing an older piece of obstacle data is changed from the obstacle mark representing a less older piece of obstacle data for the ease of distinction in the field image.