Receiver of double conversion system with antenna tuning with variable capacitance using digital-to-analog converter having temperature coefficient setting section
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 11, 2007
Grant Date -
Mar 30, 2006
app pub date -
Oct 14, 2003
filing date -
Nov 6, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A receiver of double conversion system wherein unwanted components included in received signals can be removed without fail and wherein the number of constituent parts has been reduced. The receiver comprises an antenna tuning circuit 10 including a tuning coil 11 and a variable-capacitance diode 13; a high frequency amplification circuit 20 for performing a high frequency amplification of a signal outputted by the antenna tuning circuit 10; two-stage mixing circuits 22, 28 for performing two frequency conversions of an output from the high frequency amplification circuit 20; and a detecting circuit 36 for detecting an output from the latter-stage mixing circuit 28.
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