Method and device for transmitting a signal using a transmission power mask
AssigneeMStar Semiconductor, Inc.
InventorsHervé Milleret, Olivier Isson
Life of this patent
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Abstract
Method for transmitting a signal using a transmission power mask is disclosed. The signal is transmitted by a transceiver A and is connected to a transceiver B via at least one physical link; wherein the transmission power mask is adapted according to a transfer function relative to the impedance of the physical link, so as the power lost during signal transmission is taken into account.
Claims12
A method for transmitting a signal using a transmission power mask, comprising:
- providing a signal transceiver, comprising:
- a signal processing module;
- a data transmission chain, coupled between said signal processing module and a coupling device, said data transmission chain comprising a protective resistor;
- and a data reception chain, coupled between said coupling device and said signal processing module;
- measuring a reference voltage before said protective resistor;
- measuring a test voltage after said protective resistor;
- determining a transfer function from said reference voltage and said test voltage;
- and
- adapting said transmission power mask according to said transfer function, to compensate for power lost during signal transmission.
A signal transceiver using a transmission power mask via at least one physical link, comprising:
- a digital signal processing module;
- a data transmission chain, coupled between said digital signal processing module and a coupling device, said data transmission chain comprising a protective resistor;
- a data reception chain, coupled between said coupling device and said digital signal processing module, said data reception chain comprising a switch, comprising:
- a first input terminal, coupled to said data transmission chain between said digital signal processing module and said protective resistor;
- a second input terminal, coupled to said data transmission chain between said protective resistor and said coupling device;
- a third input terminal, coupled to said coupling device;
- and
- a first output terminal;
- wherein said digital signal processing module adapts said transmission power mask according to a transfer function relative to the impedance of the physical link to compensate for power lost during signal transmission.
A method for transmitting a signal using a transmission power mask, comprising:
- providing a data transmission chain, comprising:
- a digital signal processing module;
- a digital to analogue conversion module;
- an anti-aliasing filter;
- an amplifier;
- a protective resistor;
- and a coupling device;
- performing an initialization step, comprising:
- measuring a reference voltage at a first terminal of a constituent element of said data transmission chain;
- measuring a test voltage at a second terminal of said constituent element of said data transmission chain;
- and
- determining a transfer function relative to an impedance of said data transmission chain according to said reference voltage and said test voltage;
- and
- adapting said transmission power mask according to said transfer function to compensate for power lost during signal transmission through said data transmission chain.
Dependencies are inferred from the claim text.