EPG services are provided, which enables a device such as a computer, a set top box or the like to collect EPG data from multiple EPG data providers or sources. The detection apparatus has a plurality of spaced sensor locations which are contained within a flexible housing. The system is especially suited for wiping low aspect ratio windshields. The sound sensor is adopted for traveling control and steering control of an autonomous traveling vehicle to thereby enable an autonomous traveling vehicle capable of stopping in the vicinity of an obstacle to be realized. The host device communicates to the source a specification comprising the description of the application as well as the additional information pertaining to the client device. The first n-silicon epitaxial layer has a higher doping concentration than the second n-silicon epitaxial layer.