| 摘要 |
The conventional, mechanically operated pigeon recorder is replaced by an electronic recorder of small size and light weight, if any including a memory and display, and cooperating with a specific data-carrier, taken along by the pigeon during its transport to the competition starting point and on its home flight and bearing - whether or not in code - a competition number, which after the flight, is put into the recorder and produces a time signal, in which the sensing and/or recording of the data-carrier may be done visually, magnetically, optically and/or electrically, whereby means are provided allowing to have the time registration done by the homing pigeons themselves. |
