Patent ID: 8390292

Claim:
A circuit for transmitting magnetic resonance signals comprising: a magnetic resonance local coil assembly comprising a plurality of channels; a first of said channels comprising a first individual antenna configured to receive a first magnetic resonance signal and a first frequency converter connected to said first individual antenna, said first frequency converter being configured to form a first signal from said first magnetic resonance signal and a first oscillator signal supplied to said first frequency converter; a second of said channels comprising a second individual antenna configured to receive a second magnetic resonance signal and a second frequency converter connected to said second individual antenna, said second frequency converter being configured to form a second signal from said second magnetic resonance signal and a second oscillator signal supplied to said second frequency converter; a signal combiner supplied with said first signal and said second signal that applies both of said first signal and said second signal to a single transmission path forming an output of said local coil assembly; a first input to said local coil assembly to which a first synthesizer signal is supplied, said first synthesizer signal having a first synthesizer signal frequency; a second input to said local coil assembly to which a second synthesizer is supplied, said second synthesizer signal having a second synthesizer signal frequency; and an oscillator signal source in said local coil assembly connected to said first and second inputs, said oscillator signal source supplying said first oscillator signal to said first frequency converter and supplying said second oscillator signal to said second frequency converter, and said oscillator signal source being configured to form at least one of said first and second oscillator signals with an oscillator signal frequency that is a difference between said first synthesizer signal frequency and said second synthesizer signal frequency, said first and second synthesizer signal frequencies being set so that said difference, corresponding to said oscillator signal frequency, allows said first and second signals to both be transmitted via said single transmission path.