TASK DEFINITION: Translate the given Spanish text to English
PROBLEM: Methods, systems and devices are provided for placeshifting data.

SOLUTION: Se proporcionan métodos, sistemas y dispositivos para cambiar de sitio datos.

PROBLEM: Methods of preparing the copper compositions are also disclosed.

SOLUTION: Tambien se describen metodos para preparar las composiciones de cobre.

PROBLEM: This allows the transmitter to determine which frames are "in transit.

SOLUTION:
Esto permite que el transmisor determine que tramas estan "en transito."