Is it possible to infer ambient temperature from battery temperature?

A few questions here and at Stack Overflow make battery temperature available for the inquiring minds: * [Get temperature of battery on Android](https://stackoverflow.com/questions/3997289/get-temperature-of-battery-on-android/3997349#3997349) * [How does Android obtain battery temperature](https://android.stackexchange.com/questions/29405/how-does-android-obtain-battery-temperature) Yet, I'm curious if there's a method for deriving ambient temperature from battery data. A [quick search](http://patft.uspto.gov/netahtml/PTO/search-bool.html) at U.S. Patents and Trademarks' Office revealed no such patents (yet).