Patent ID: 7991076
Filing Date: 2011-08-02
Classification: H04L

Abstract:
1. A signal scaling device comprising: a receiver adapted to receive a phase and/or amplitude modulated signal to be transmitted; and a processing means operably coupled to the receiver and arranged to multiply said phase and/or amplitude modulated signal with a chosen complex gain in order to output said phase and/or amplitude modulated signal with a chosen scaled amplitude and a chosen phase offset, wherein said phase and/or amplitude modulated signal is equal to I+jQ, where I is an in-phase component signal and Q is a quadrature component signal, said complex gain equal to k where j=1,2 and where a i,j is a bit coefficient equal either to 0 or 1, b is a number of bits representing a fractional part of a chosen binary number η from which a dynamic range value is built, and B is a number of bits representing an integer part of said chosen binary number η, and wherein said processing means comprises: a selection means arranged to output said bit coefficients a a scaling means fed with said in-phase component signal I and quadrature component signal Q of a phase and/or amplitude modulated signal to transmit, the scaling means arranged to output said phase and/or amplitude modulated signal with a scaled amplitude depending on said outputted bit coefficients a