Radio-frequency identification transponder and method for data transmission by means of radio-frequency identification technology

A method for data transmission using radio frequency identification (RFID) technology, the method comprising:

• generating a transmission signal by modulating an oscillator signal with an encoded bit signal, the oscillator signal having a frequency;
• wherein, during a transmission period, the encoded bit signal has, during a first time segment of the transmission period, a first logic level and has, during a second time segment of the transmission period, a second logic level being different from the first logic level;
• and
• wherein the transmission signal:
• comprises, within the first time segment, a first signal pulse having the frequency of the oscillator signal and a first phase depending on the first logic level;
• comprises, within the second time segment, a second signal pulse having the frequency of the oscillator signal and a second phase depending on the second logic level and being shifted with respect to the first phase by a phase difference;
• and
• is paused for a pause period between the first signal pulse and the second signal pulse, wherein the pause period is shorter than or equal to a period of the first signal pulse and wherein the pause period is shorter than or equal to a period of the second signal pulse.

A radio frequency identification (RFID) transponder, comprising:

• a coding and modulation circuit configured to generate during a transmission period a transmission signal by modulating an oscillator signal with an encoded bit signal, the encoded bit signal having, during a first time segment of the transmission period, a first logic level and having, during a second time segment of the transmission period, a second logic level different from the first logic level;
• and
• wherein the transmission signal comprises:
• within the first time segment, a first signal pulse having a frequency of the oscillator signal and a first phase depending on the first logic level;
• and
• within the second time segment, a second signal pulse having the frequency and a second phase depending on the second logic level and shifted with respect to the first phase by a phase difference;
• and
• wherein the coding and modulation circuit is further configured to pause the transmission signal for a pause period between the first signal pulse and the second signal pulse, wherein the pause period is shorter than or equal to a sum of a period of the first signal pulse and a period of the second signal pulse.

A method for data transmission using radio frequency identification (RFID) technology, the method comprising:

• generating a transmission signal by modulating an oscillator signal with an encoded bit signal, the oscillator signal having a frequency;
• wherein, during a transmission period, the encoded bit signal has, during a first time segment of the transmission period, a first logic level and has, during a second time segment of the transmission period, a second logic level being different from the first logic level;
• and
• wherein the transmission signal:
• comprises, within the first time segment, a first signal pulse having the frequency of the oscillator signal and a first phase depending on the first logic level;
• comprises, within the second time segment, a second signal pulse having the frequency of the oscillator signal and a second phase depending on the second logic level and being shifted with respect to the first phase by a phase difference;
• and
• is paused for a pause period between the first signal pulse and the second signal pulse, wherein the pause period is shorter than or equal to a sum of a period of the first signal pulse and a period of the second signal pulse.

A radio frequency identification (RFID) transponder, comprising:

• a coding and modulation circuit configured to generate during a transmission period a transmission signal by modulating an oscillator signal with an encoded bit signal, the encoded bit signal having, during a first time segment of the transmission period, a first logic level and having, during a second time segment of the transmission period, a second logic level different from the first logic level;
• wherein the transmission period has a length corresponding to a total cycle number multiplied with a cycle period depending on the frequency of the oscillator signal;
• and
• wherein the transmission signal comprises:
• within the first time segment, a first signal pulse comprising a first cycle number of cycles, each cycle having a length given by the cycle period;
• and
• within the second time segment, a second signal pulse comprising a second cycle number of cycles, each cycle having a length given by the cycle period;
• and
• wherein the coding and modulation circuit is further configured to pause the transmission signal for a pause period between the first signal pulse and the second signal pulse, the pause period having a length corresponding to a pause cycle number multiplied with the cycle period.

A method for data transmission using radio frequency identification (RFID) technology, the method comprising:

• generating a transmission signal by modulating an oscillator signal with an encoded bit signal, the oscillator signal having a frequency;
• wherein, during a transmission period, the encoded bit signal has, during a first time segment of the transmission period, a first logic level and has, during a second time segment of the transmission period, a second logic level being different from the first logic level;
• wherein the transmission period has a length corresponding to a total cycle number multiplied with a cycle period depending on the frequency of the oscillator signal;
• and
• wherein the transmission signal:
• comprises, within the first time segment, a first signal pulse comprising a first cycle number of cycles, each cycle having a length given by the cycle period;
• comprises, within the second time segment a second signal pulse comprising a second cycle number of cycles, each cycle having a length given by the cycle period;
• and
• is paused for a pause period between the first signal pulse and the second signal pulse, the pause period having a length corresponding to a pause cycle number multiplied with the cycle period.