The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 2003
Filed:
Apr. 19, 2001
Derald O. Cummings, State College, PA (US);
John C. Pavlic, Port Matilda, PA (US);
Robert C. Ritter, Bellefonte, PA (US);
C-COR.net Corp., State College, PA (US);
Abstract
In a transfer linearization (TL) circuit one or more biased nonlinear elements form a nonlinear attenuator and a biased network to allow adjustment of diodes to linearize the overall transfer of the TL circuit and an amplifier being linearized. The transfer linearization circuit reduces distortion encountered in a broadband RF amplifier. The circuit compensates for attenuation of amplified broadband signals in CATV systems. The transfer linearization circuit provides low insertion loss and requires very low power consumption. Nearly constant impedance and constant insertion loss is provided across a wide frequency range and reduces both in-band and out-of-band third order distortions. The TL circuit exhibits instantaneous amplitude and phase transfer correction. No tuned frequency selective components are required so that adjustments are relatively straightforward.