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Class Information
Number: 455/332
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Frequency modifying or conversion > Particular frequency conversion structure or circuitry > Push-pull
Description: Systems wherein the frequency conversion means includes two paths for either the modulated input carrier wave or locally generated signal wave, or both, which have a common output, the two paths being connected electrically in parallel with respect to the input and output of the paths the voltages in the two paths being 180 of phase with respect to each other.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7505751 |
Wireless mesh architecture |
Mar. 17, 2009 |
| 7415262 |
Wireless access point power control |
Aug. 19, 2008 |
| 7411931 |
Inter-frequency measurements with MIMO terminals |
Aug. 12, 2008 |
| 7200633 |
Information delivery system and information delivery method |
Apr. 3, 2007 |
| 7177619 |
Dual gate FinFET radio frequency switch and mixer |
Feb. 13, 2007 |
| 7177620 |
Mixer constant linear range biasing apparatus and method |
Feb. 13, 2007 |
| 6778132 |
Microwave sensor |
Aug. 17, 2004 |
| 6741587 |
Inter-frequency measurements with MIMO terminals |
May. 25, 2004 |
| 6437659 |
Push-pull arrangement |
Aug. 20, 2002 |
| 6138000 |
Low voltage temperature and V.sub.cc compensated RF mixer |
Oct. 24, 2000 |
| 6029054 |
MMIC receiver |
Feb. 22, 2000 |
| 5661424 |
Frequency hopping synthesizer using dual gate amplifiers |
Aug. 26, 1997 |
| 5506869 |
Methods and apparatus for estimating carrier-to-interference ratios at cellular radio base stations |
Apr. 9, 1996 |
| 5465418 |
Self-oscillating mixer circuits and methods therefor |
Nov. 7, 1995 |
| 5214397 |
Modulator using low-pass filter as delay element |
May. 25, 1993 |
| 5153536 |
Suppressed carrier modulator formed from two partial modulators each including a phase delay path |
Oct. 6, 1992 |
| 5060299 |
Radio frequency mixer circuit utilizing interface transformers and switching diodes |
Oct. 22, 1991 |
| 5003620 |
Tuner circuit and receiving band change-over circuit with a push-pull amplifier |
Mar. 26, 1991 |
| 4994755 |
Active balun |
Feb. 19, 1991 |
| 4727596 |
High dynamic range mixer |
Feb. 23, 1988 |
| 4704738 |
Transistor amplifier and mixer input stage for a radio receiver |
Nov. 3, 1987 |
| 4677691 |
Microwave receiver |
Jun. 30, 1987 |
| 4675911 |
Monolithic microwave integrated circuit broadband mixer |
Jun. 23, 1987 |
| 4661999 |
Microwave push-pull frequency converter |
Apr. 28, 1987 |
| 4658440 |
Single balanced self-oscillating dual gate FET mixer |
Apr. 14, 1987 |
| 4637069 |
Doubly balanced diode mixer comprising a ring modulator each leg of which comprises a high speed conventional diode in series with at least one diode of the "varactor" kind |
Jan. 13, 1987 |
| 4593411 |
Diode mixer with bias control |
Jun. 3, 1986 |
| 4509208 |
Frequency conversion unit |
Apr. 2, 1985 |
| 4480337 |
Transistor mixer and amplifier input stage |
Oct. 30, 1984 |
| 4461042 |
Transistor balanced mixer |
Jul. 17, 1984 |
| 4449245 |
High gain balanced mixer |
May. 15, 1984 |
| 4435848 |
Stripline microwave balanced mixer circuit |
Mar. 6, 1984 |
| 4412352 |
Frequency conversion circuit |
Oct. 25, 1983 |
| 4380830 |
Microwave up-converter |
Apr. 19, 1983 |
| 4375700 |
Low frequency converter with isolated mixer sections |
Mar. 1, 1983 |
| 4367560 |
Low frequency converter with diode quad mixer |
Jan. 4, 1983 |
| 4365350 |
Low frequency converter with diode pair mixer |
Dec. 21, 1982 |
| 4334324 |
Complementary symmetry FET frequency converter circuits |
Jun. 8, 1982 |
| 4308473 |
Polyphase coded mixer |
Dec. 29, 1981 |
| 4119914 |
Double balanced mixer using single ferrite core |
Oct. 10, 1978 |
| 4079321 |
Dual diode high conversion efficiency signal mixer |
Mar. 14, 1978 |
| 4063176 |
Broadband high frequency mixer |
Dec. 13, 1977 |
| 4058771 |
Double-balanced frequency converter |
Nov. 15, 1977 |
| 4032851 |
Complementary symmetry FET mixer circuits |
Jun. 28, 1977 |
| 4032850 |
Coaxial balun with doubly balanced heterodyne converter |
Jun. 28, 1977 |
| 3961264 |
Linear frequency converter with gain independent of circuit parameters |
Jun. 1, 1976 |
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