strange tables in my schema in oracle 11

 while I want to get my objects in my schema which exists in oracle 11g release 2, using the following query sql> select * from tab;

I got table names like :-

BIN$EE/RmV4nQCCNfiakkoth7g==$0 TABLE

BIN$EP6tD8ElSRGNG6fVCkM/Dg==$0 TABLE

BIN$EXMjkcAWSCyW/ufFaQu8vw==$0 TABLE

BIN$EfxJGwuSRIqGz4HQ618Lrw==$0 TABLE

BIN$EqPMF5NISAuy07blh/8rXA==$0 TABLE

BIN$EwswRH6ESRKshNcjkvE8pA==$0 TABLE

BIN$F/BuLX+nTiWlOK8Vtq5fWA==$0 TABLE

BIN$F3eJ4deNQCuUhwUVxhUs9w==$0 TABLE

BIN$F5fSDaD5Rrel2zd4Co6Smw==$0 TABLE

BIN$F6HZeBWYTJuMMdUM3U/tAw==$0 TABLE

BIN$FEGx3nSGRqKiE5k/GU6+uw==$0 TABLE

BIN$FIO1xM7yRPKtjBIhYEwkbg==$0 TABLE