System and method for using a saw based RF transmitter for FM transmission in a TPM
First Claim
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1. For use in a tire pressure monitoring system, a frequency modulation (FM) radio frequency (RF) oscillator comprising:
- a modulator configured to generate a modulation signal in response to a data input signal; and
a generator configured to generate an FM output signal having a carrier frequency modulated by the modulation signal, wherein the generator comprises a frequency determining device.
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Abstract
For use in a tire pressure monitoring system, a frequency modulation (FM) radio frequency (RF) oscillator includes a modulator and a generator. The modulator may be configured to generate a modulation signal in response to a data input signal. The generator may be configured to generate an FM output signal having a carrier frequency modulated by the modulation signal, wherein the generator includes a frequency determining device.
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Citations
20 Claims
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1. For use in a tire pressure monitoring system, a frequency modulation (FM) radio frequency (RF) oscillator comprising:
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a modulator configured to generate a modulation signal in response to a data input signal; and
a generator configured to generate an FM output signal having a carrier frequency modulated by the modulation signal, wherein the generator comprises a frequency determining device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. For use in a tire pressure monitoring system, a method of generating a frequency modulation (FM) radio frequency (RF) output signal, the method comprising:
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generating a modulation signal in response to a data input signal;
generating an RF signal having a carrier frequency; and
frequency modulating the carrier frequency of the RF signal with the modulation signal, wherein the RF signal is generated using a generator comprising a frequency determining device. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. For use in a remote keyless entry (RKE) system, a frequency modulation (FM) radio frequency (RF) oscillator comprising:
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a modulator configured to generate a modulation signal in response to a data input signal; and
a generator configured to generate an FM output signal having a carrier frequency modulated by the modulation signal, wherein the generator comprises a surface acoustic wave (SAW) device. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification