Transmitter linearization
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 13, 2006
Issued Date -
N/A
app pub date -
Jun 14, 2001
filing date -
Dec 17, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for defining correction parameters used in transmitter linearization executed by a predistortion method and a transmitter comprising: sampling means (9) for sampling the signal (OUT) coming out of the transmitter, a predistorter (3A, 3B, 4) for predistorting the signal to be sent (I_IN, Q_IN) to compensate the nonlinearity of the transmitter, the transmitter also comprising: categorization means (17) for categorizing into predefined classes signal samples (FB) taken from the signal (OUT) coming out of the transmitter, comparison means (17) for comparing the signal samples (FB) with the corresponding ideal signal values (REF), and definition means (17), responsive to said comparison means (17), for defining amplitude and preferably phase correction parameters for each class in question, whereby the predistorter is arranged to use said correction parameters when predistorting the signal being transmitted.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully