H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/48
H04N 5/217 (2006.01) H03F 1/32 (2006.01) H04N 5/38 (2006.01)
Patent
CA 1235797
17 ABSTRACT OF THE DISCLOSURE The device for the automatic precorrection of non-linearities according to the invention for a power amplification chain in a common channel television transmitter, has a first circuit for detecting the component to be corrected prior to amplification and addition of the components to be simultaneously amplified, a circuit for selecting the same components after amplification in a common channel, an attenuator of the latter component having an attenuation coefficient equal to the linear part of the amplification chain gain, a second detection circuit, an analog divider receiving the two detected components, whereof the output is coupled to the precorrection control input of a precorrection circuit upstream of the first precorrection circuit.
465561
Allanic Michel
Corbel Philippe
Goudreau Gage Dubuc
Thomson-Lgt Laboratoire General Des Telecommunications
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