IP Library Granted Patent US 8,554,159
Granted Patent B2
US 8,554,159 · App. 12/757,274 · Granted Oct 8, 2013

Direct FM/PM modulation

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,554,159
App. No.
12/757,274
Granted
Oct 8, 2013
Kind
B2
Abstract

Representative implementations of direct FM/PM modulation and systems are disclosed describing frequency modulation or phase modulation of information onto a carrier signal using a divider that is remote from the carrier signal generation path.

Claims (52)

1. 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,

wherein the divider is configured to provide noise shaping based on the control signal, the divider being configured to provide the noise shaping by transferring noise located within a predetermined frequency range of the modulated signal to a preset frequency, or

wherein the divider is configured to divide a frequency of the RF carrier signal with a first divider value to produce a first modulated signal frequency, and the divider is configured to divide the frequency of the RF carrier signal with a second divider value to produce a second modulated signal frequency when the divider has closed the division with the first divider value.

2. The electronic device of claim 1 , wherein the modulated signal is one of a frequency modulated (FM) signal or a phase modulated (PM) signal.

3. 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.

4. 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.

5. 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.

6. 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.

7. The method of claim 6 , wherein the modulated signal is one of a frequency modulated (FM) signal or a phase modulated (PM) signal.

8. The method of claim 6 , further comprising:

receiving an instantaneous divider value generated from the communication information;

dividing a frequency of the carrier signal with the instantaneous divider value to produce a modulated signal frequency; and

transferring noise located within a predetermined range of the modulated signal frequency to a preset frequency.

9. 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.

10. The method of claim 6 , further comprising outputting the modulated signal to a transmitter driver to provide control for the transmitter driver.

11. 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.

12. The communication system of claim 11 , wherein the modulation stage further includes a feedback loop configured to feed a feedback signal output by the divider element into at least one of the control element or the divider element.

13. The communication system of claim 11 , wherein the divider element is configured to provide noise shaping based on the control signal, the divider element being configured to provide the noise shaping by transferring noise located within a predetermined range of the modulated signal frequency to a preset frequency.

14. 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.

15. The apparatus of claim 14 , wherein the divider is configured to receive an instantaneous divider value and divide a frequency of the RF carrier signal with the instantaneous divider value to produce a modulated signal frequency.

Assignments (4)
CHANGE OF NAME Recorded Nov 6, 2015
From: INTEL MOBILE COMMUNICATIONS GMBH
To: INTEL DEUTSCHLAND GMBH
Reel/Frame 037057/0061 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 19, 2012
From: INTEL MOBILE COMMUNICATIONS TECHNOLOGY GMBH
To: INTEL MOBILE COMMUNICATIONS GMBH
Reel/Frame 027556/0709 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 18, 2012
From: INFINEON TECHNOLOGIES AG
To: INTEL MOBILE COMMUNICATIONS TECHNOLOGY GMBH
Reel/Frame 027548/0623 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 13, 2010
From: VAN WAASEN, STEFAN; MISKIEWICZ, ANNA; HAMMES, MARKUS
To: INFINEON TECHNOLOGIES AG
Reel/Frame 024379/0124 →