IT8022252A0 - Stadio ricevente ad alta frequenza. - Google Patents
Stadio ricevente ad alta frequenza.Info
- Publication number
- IT8022252A0 IT8022252A0 IT8022252A IT2225280A IT8022252A0 IT 8022252 A0 IT8022252 A0 IT 8022252A0 IT 8022252 A IT8022252 A IT 8022252A IT 2225280 A IT2225280 A IT 2225280A IT 8022252 A0 IT8022252 A0 IT 8022252A0
- Authority
- IT
- Italy
- Prior art keywords
- high frequency
- frequency receiving
- receiving stage
- stage
- receiving
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
- H03D2200/0001—Circuit elements of demodulators
- H03D2200/0017—Intermediate frequency filter
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Superheterodyne Receivers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2921219A DE2921219C2 (de) | 1979-05-25 | 1979-05-25 | HF-Empfangsstufe für Fernsehgeräte |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8022252A0 true IT8022252A0 (it) | 1980-05-22 |
| IT1130651B IT1130651B (it) | 1986-06-18 |
Family
ID=6071684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT22252/80A IT1130651B (it) | 1979-05-25 | 1980-05-22 | Stadio ricevente ad alta frequenza |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4313222A (it) |
| DE (1) | DE2921219C2 (it) |
| FR (1) | FR2457607A1 (it) |
| IT (1) | IT1130651B (it) |
| ZA (1) | ZA803058B (it) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4380828A (en) * | 1981-05-26 | 1983-04-19 | Zenith Radio Corporation | UHF MOSFET Mixer |
| HU193510B (en) * | 1981-09-01 | 1987-10-28 | Gyoergy Veisz | Four-terminal filter arrangement |
| US6061551A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for down-converting electromagnetic signals |
| US7515896B1 (en) | 1998-10-21 | 2009-04-07 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships |
| US7236754B2 (en) | 1999-08-23 | 2007-06-26 | Parkervision, Inc. | Method and system for frequency up-conversion |
| US6542722B1 (en) | 1998-10-21 | 2003-04-01 | Parkervision, Inc. | Method and system for frequency up-conversion with variety of transmitter configurations |
| US7039372B1 (en) * | 1998-10-21 | 2006-05-02 | Parkervision, Inc. | Method and system for frequency up-conversion with modulation embodiments |
| US6370371B1 (en) | 1998-10-21 | 2002-04-09 | Parkervision, Inc. | Applications of universal frequency translation |
| US6873836B1 (en) | 1999-03-03 | 2005-03-29 | Parkervision, Inc. | Universal platform module and methods and apparatuses relating thereto enabled by universal frequency translation technology |
| US6879817B1 (en) | 1999-04-16 | 2005-04-12 | Parkervision, Inc. | DC offset, re-radiation, and I/Q solutions using universal frequency translation technology |
| US6853690B1 (en) * | 1999-04-16 | 2005-02-08 | Parkervision, Inc. | Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments |
| US7110435B1 (en) * | 1999-03-15 | 2006-09-19 | Parkervision, Inc. | Spread spectrum applications of universal frequency translation |
| US7065162B1 (en) | 1999-04-16 | 2006-06-20 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same |
| US7693230B2 (en) | 1999-04-16 | 2010-04-06 | Parkervision, Inc. | Apparatus and method of differential IQ frequency up-conversion |
| US7110444B1 (en) | 1999-08-04 | 2006-09-19 | Parkervision, Inc. | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations |
| US8295406B1 (en) | 1999-08-04 | 2012-10-23 | Parkervision, Inc. | Universal platform module for a plurality of communication protocols |
| US7010286B2 (en) | 2000-04-14 | 2006-03-07 | Parkervision, Inc. | Apparatus, system, and method for down-converting and up-converting electromagnetic signals |
| US7554508B2 (en) | 2000-06-09 | 2009-06-30 | Parker Vision, Inc. | Phased array antenna applications on universal frequency translation |
| US7010559B2 (en) * | 2000-11-14 | 2006-03-07 | Parkervision, Inc. | Method and apparatus for a parallel correlator and applications thereof |
| US7454453B2 (en) * | 2000-11-14 | 2008-11-18 | Parkervision, Inc. | Methods, systems, and computer program products for parallel correlation and applications thereof |
| US7072427B2 (en) * | 2001-11-09 | 2006-07-04 | Parkervision, Inc. | Method and apparatus for reducing DC offsets in a communication system |
| DE10163181A1 (de) * | 2001-12-21 | 2003-07-10 | Bsh Bosch Siemens Hausgeraete | Umsteuereinrichtung, insbes. für eine Geschirrspülmaschine |
| US7460584B2 (en) * | 2002-07-18 | 2008-12-02 | Parkervision, Inc. | Networking methods and systems |
| US7379883B2 (en) | 2002-07-18 | 2008-05-27 | Parkervision, Inc. | Networking methods and systems |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2654836A (en) * | 1952-04-24 | 1953-10-06 | Rca Corp | Converter circuit |
| DE966146C (de) * | 1953-03-14 | 1957-07-11 | Telefunken Gmbh | Selbstschwingende Mischstufe mit additiver Mischung |
| US3226665A (en) * | 1960-08-03 | 1965-12-28 | Marelli Lenkurt S P A | Transmission line transformer |
| US3299384A (en) * | 1964-07-01 | 1967-01-17 | Ibm | Wide-band transformer having neutralizing winding |
| SE400850B (sv) * | 1977-03-25 | 1978-04-10 | Klostermark Bernt | Hogfrekvenstransformator |
-
1979
- 1979-05-25 DE DE2921219A patent/DE2921219C2/de not_active Expired
-
1980
- 1980-04-15 FR FR8008441A patent/FR2457607A1/fr active Granted
- 1980-05-12 US US06/149,028 patent/US4313222A/en not_active Expired - Lifetime
- 1980-05-22 ZA ZA00803058A patent/ZA803058B/xx unknown
- 1980-05-22 IT IT22252/80A patent/IT1130651B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| DE2921219C2 (de) | 1986-12-04 |
| US4313222A (en) | 1982-01-26 |
| ZA803058B (en) | 1981-05-27 |
| FR2457607B3 (it) | 1982-03-05 |
| DE2921219A1 (de) | 1980-11-27 |
| FR2457607A1 (fr) | 1980-12-19 |
| IT1130651B (it) | 1986-06-18 |
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