EP0023223A4 - Modifiziertes übertragungssystem mit restseitenband. - Google Patents

Modifiziertes übertragungssystem mit restseitenband.

Info

Publication number
EP0023223A4
EP0023223A4 EP19800900372 EP80900372A EP0023223A4 EP 0023223 A4 EP0023223 A4 EP 0023223A4 EP 19800900372 EP19800900372 EP 19800900372 EP 80900372 A EP80900372 A EP 80900372A EP 0023223 A4 EP0023223 A4 EP 0023223A4
Authority
EP
European Patent Office
Prior art keywords
transmission system
side band
band transmission
vestigial side
modified
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19800900372
Other languages
English (en)
French (fr)
Other versions
EP0023223A1 (de
Inventor
Stephen M Bench
Paul H Thibodeau
Guy M Campbell
Theodore M Stump
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anaconda Co
Original Assignee
Anaconda Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anaconda Co filed Critical Anaconda Co
Publication of EP0023223A1 publication Critical patent/EP0023223A1/de
Publication of EP0023223A4 publication Critical patent/EP0023223A4/de
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/08—Arrangements for combining channels
EP19800900372 1979-01-29 1980-08-15 Modifiziertes übertragungssystem mit restseitenband. Withdrawn EP0023223A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US766679A 1979-01-29 1979-01-29
US7666 1998-01-15

Publications (2)

Publication Number Publication Date
EP0023223A1 EP0023223A1 (de) 1981-02-04
EP0023223A4 true EP0023223A4 (de) 1981-06-30

Family

ID=21727479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800900372 Withdrawn EP0023223A4 (de) 1979-01-29 1980-08-15 Modifiziertes übertragungssystem mit restseitenband.

Country Status (4)

Country Link
EP (1) EP0023223A4 (de)
JP (1) JPS56500198A (de)
BR (1) BR8006228A (de)
WO (1) WO1980001633A1 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
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
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
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
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
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
JP2005348174A (ja) * 2004-06-03 2005-12-15 Cocomo Mb Communications Inc 無線通信システム

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB651992A (en) * 1947-04-16 1951-04-11 Cie Ind Des Telephones Improvements in or relating to carrier current signalling systems

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2181499A (en) * 1937-11-10 1939-11-28 Hazeltine Corp Band-pass filter
US2247898A (en) * 1939-09-29 1941-07-01 Hazeltine Corp Band-pass filter, including trap circuit
US2717956A (en) * 1952-11-29 1955-09-13 Bell Telephone Labor Inc Reduction of quadrature distortion
US3019335A (en) * 1959-09-14 1962-01-30 Nat Company Inc Large bandwidth low noise antenna circuit
US3266548A (en) * 1965-05-24 1966-08-16 Clark Equipment Co Method and means for demounting tires
US3742149A (en) * 1970-05-06 1973-06-26 Nippon Electric Co A frequency division multiplex microwave communication system using polarization division multiplex technique
US3794938A (en) * 1971-05-03 1974-02-26 Gen Aviat Electronics Inc Coupled bandstop/bandpass filter
DE2213962C3 (de) * 1972-03-22 1979-01-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Funkfeld in einem Richtfunksystem
DE2214583C3 (de) * 1972-03-24 1982-03-25 Siemens AG, 1000 Berlin und 8000 München Trägerfrequentes Nachrichtenübertragungssystem
DE2425674B2 (de) * 1974-05-28 1976-06-10 Standard Elektrik Lorenz Ag, 7000 Stuttgart Nullstellenfilter
FR2307411A1 (fr) * 1975-04-11 1976-11-05 Thomson Csf Poste telephonique a generateur de porteurs programmable et systeme telephonique utilisant un tel poste
US4029902A (en) * 1975-10-22 1977-06-14 Hughes Aircraft Company Contiguous channel multiplexer
US4159454A (en) * 1977-12-30 1979-06-26 The United States Of America As Represented By The Secretary Of The Air Force Plug-in filter network for separating a communication frequency into discrete frequency channels

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB651992A (en) * 1947-04-16 1951-04-11 Cie Ind Des Telephones Improvements in or relating to carrier current signalling systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO8001633A1 *

Also Published As

Publication number Publication date
JPS56500198A (de) 1981-02-19
BR8006228A (pt) 1980-12-30
WO1980001633A1 (en) 1980-08-07
EP0023223A1 (de) 1981-02-04

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH DE FR GB LU NL SE

17P Request for examination filed

Effective date: 19810209

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19830524

RIN1 Information on inventor provided before grant (corrected)

Inventor name: STUMP, THEODORE M.

Inventor name: BENCH, STEPHEN M.

Inventor name: CAMPBELL, GUY M.

Inventor name: THIBODEAU, PAUL H.