Dynamic distortion control
January 6, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesOptical transmitters linearized by means of parametric feedback Shunt-expansive predistortion linearizers for optical analog transmitters Apparatus for linearization of optic modulators using a feed-forward predistortion circuit Suppression of noise and distortion in fiber-optic systems Full duplex optical modem for broadband access network In-line predistorter for linearization of electronic and optical signals Linearized optical transmitter Adaptive predistortion control for optical external modulation Lightwave transmission techniques Analog optical transmission apparatus InventorApplicationNo. 478644 filed on 01/06/2000US Classes:398/193, Precompensation (e.g., prechirping, predistortion330/149, HUM OR NOISE OR DISTORTION BUCKING INTRODUCED INTO SIGNAL CHANNEL375/296, Antinoise or distortion (includes predistortion)398/194For noise or distortionExaminersPrimary: Negash, Kinfe-MichaelAttorney, Agent or FirmForeign Patent References
International ClassH04B 010/04AbstractA distortion monitor for a non-linear device is provided. The control circuit includes an input coupleable to receive a signal from the non-linear device and a first frequency monitor coupled to the input. The frequency monitor monitors the level of one of even and odd order distortion at a first frequency and creates a first signal indicative of the level of the distortion without the use of a pilot tone. | |
