Direct FM/PM modulation

An electronic device comprising:

• a divider configured to:
• receive a radio frequency (RF) carrier signal from a generation source remote to the divider;
• receive a control signal;
• modulate the RF carrier signal based on the control signal;
• and output a modulated signal;
• and
• a control circuit electrically coupled to the divider, the control circuit configured to receive an input signal and to output the control signal based on the input signal, wherein:
• the control circuit is configured to output the control signal as a divider value based on an instantaneous frequency of the information input signal received by the control circuit;
• and
• the divider is configured to receive the divider value and divide a frequency of the RF carrier signal with the divider value to produce a modulated signal frequency.

An electronic device comprising:

• a divider configured to:
• receive a radio frequency (RF) carrier signal from a generation source remote to the divider;
• receive a control signal;
• modulate the RF carrier signal based on the control signal;
• and output a modulated signal;
• a control circuit electrically coupled to the divider, the control circuit configured to receive information and to output the control signal based on the information;
• and
• a feedback loop configured to feed a feedback signal into the control circuit, the feedback signal output by the divider, wherein the feedback signal provides timing for the control circuit and triggers the control circuit to generate a divider value, or
• a feedback loop configured to feed the modulated signal into the control circuit, wherein the modulated signal provides timing for the control circuit and triggers the control circuit to generate a divider value.

An electronic device comprising:

• a divider configured to:
• receive a radio frequency (RF) carrier signal from a generation source remote to the divider;
• receive a control signal;
• modulate the RF carrier signal based on the control signal;
• and output a modulated signal;
• and
• a feedback loop configured to feed a feedback signal, output by the divider, into the divider to provide timing for the divider, or
• a feedback loop configured to feed the modulated signal into the divider to provide timing for the divider.

A method comprising:

• receiving a carrier signal at a divider, the carrier signal received from a generation source remote from the divider;
• receiving a control signal at the divider from a control circuit, the control signal based on an instantaneous frequency of communication information received at the control circuit, wherein the control circuit comprises a sigma delta modulator;
• modulating the communication information onto the carrier signal to produce a modulated signal based on the control signal;
• and
• outputting the modulated signal.

A method comprising:

• receiving a carrier signal at a divider, the carrier signal received from a generation source remote from the divider;
• receiving a control signal at the divider, the control signal based on communication information;
• modulating the communication information onto the carrier signal to produce a modulated signal based on the control signal;
• outputting the modulated signal;
• and
• feeding a feedback signal, output by the divider, back into the divider to provide timing, or
• feeding the modulated signal back into the divider to provide timing, or
• feeding a feedback signal into a control circuit to provide timing for the control circuit and to trigger the control circuit to generate a divider value, wherein the feedback signal is output by the divider, or
• feeding the modulated signal into a control circuit to provide timing for the control circuit and to trigger the control circuit to generate a divider value.

A communication system comprising:

• a signal generation stage configured to generate a radio frequency (RF) carrier signal;
• a modulation stage electrically coupled to the signal generation stage, the modulation stage including:
• a control element configured to receive communication information, output a control signal based on the communication information, and output an instantaneous divider value based on an instantaneous frequency of the communication information;
• and
• a divider element located outside of the signal generation stage, the divider element configured to modulate the communication information onto the RF carrier signal based on the control signal to produce a modulated signal, receive the instantaneous divider value, divide a frequency of the RF carrier signal with the instantaneous divider value to produce a modulated signal frequency, and output the modulated signal at the modulated signal frequency;
• and
• a transmission stage electrically coupled to the modulation stage, the transmission stage including a driver element configured to output the modulated signal to an antenna.

An apparatus, comprising:

• a divider configured to receive a radio frequency (RF) carrier signal;
• and
• a generation source to supply the RF carrier signal, the generation source being remote from the divider,
• wherein the divider is configured to:
• receive a control signal;
• modulate the RF carrier signal based on the control signal;
• output a modulated signal;
• and provide noise shaping based on the control signal, wherein the divider is configured to provide the noise shaping by transferring noise located within a predetermined frequency range of the modulated signal to a preset frequency.