WO1980001633A1 - Modified vestigial side band transmission system - Google Patents

Modified vestigial side band transmission system Download PDF

Info

Publication number
WO1980001633A1
WO1980001633A1 PCT/US1980/000067 US8000067W WO8001633A1 WO 1980001633 A1 WO1980001633 A1 WO 1980001633A1 US 8000067 W US8000067 W US 8000067W WO 8001633 A1 WO8001633 A1 WO 8001633A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
band
filter
frequency
frequencies
Prior art date
Application number
PCT/US1980/000067
Other languages
English (en)
French (fr)
Inventor
G Campbell
P Thibodeau
S Bench
T Stump
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
Priority to BR8006228A priority Critical patent/BR8006228A/pt
Priority to JP80500497A priority patent/JPS56500198A/ja
Publication of WO1980001633A1 publication Critical patent/WO1980001633A1/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
PCT/US1980/000067 1979-01-29 1980-01-23 Modified vestigial side band transmission system WO1980001633A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR8006228A BR8006228A (pt) 1979-01-29 1980-01-23 Sistema de transmissao,processo de multiplexacao de portadora em multiplos canais de comunicacao sobre um unico meio de comunicacao processo de filtragem de receptor,processo de construcao de sistema de transmissao de portadora multiplexada em multiplos canais,filtro receptor,e sistema de transmissao telefonica de portadora multiplexada
JP80500497A JPS56500198A (de) 1979-01-29 1980-01-23

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
WO1980001633A1 true WO1980001633A1 (en) 1980-08-07

Family

ID=21727479

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1980/000067 WO1980001633A1 (en) 1979-01-29 1980-01-23 Modified vestigial side band transmission system

Country Status (4)

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

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6353735B1 (en) 1998-10-21 2002-03-05 Parkervision, Inc. MDG method for output signal generation
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6421534B1 (en) 1998-10-21 2002-07-16 Parkervision, Inc. Integrated frequency translation and selectivity
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6580902B1 (en) 1998-10-21 2003-06-17 Parkervision, Inc. Frequency translation using optimized switch structures
US6647250B1 (en) 1998-10-21 2003-11-11 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
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
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
US7653145B2 (en) 1999-08-04 2010-01-26 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7653158B2 (en) 2001-11-09 2010-01-26 Parkervision, Inc. Gain control in a communication channel
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7724845B2 (en) 1999-04-16 2010-05-25 Parkervision, Inc. Method and system for down-converting and electromagnetic signal, and transforms for same
US7773688B2 (en) 1999-04-16 2010-08-10 Parkervision, Inc. Method, system, and apparatus for balanced frequency up-conversion, including circuitry to directly couple the outputs of multiple transistors
US7822401B2 (en) 2000-04-14 2010-10-26 Parkervision, Inc. Apparatus and method for down-converting electromagnetic signals by controlled charging and discharging of a capacitor
US7865177B2 (en) 1998-10-21 2011-01-04 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US7894789B2 (en) 1999-04-16 2011-02-22 Parkervision, Inc. Down-conversion of an electromagnetic signal with feedback control
US7991815B2 (en) 2000-11-14 2011-08-02 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US8019291B2 (en) 1998-10-21 2011-09-13 Parkervision, Inc. Method and system for frequency down-conversion and frequency up-conversion
US8160196B2 (en) 2002-07-18 2012-04-17 Parkervision, Inc. Networking methods and systems
US8233855B2 (en) 1998-10-21 2012-07-31 Parkervision, Inc. Up-conversion based on gated information signal
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US8407061B2 (en) 2002-07-18 2013-03-26 Parkervision, Inc. Networking methods and systems

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005348174A (ja) * 2004-06-03 2005-12-15 Cocomo Mb Communications Inc 無線通信システム

Citations (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
US3865990A (en) * 1972-03-22 1975-02-11 Siemens Ag Radio relay systems
US3895190A (en) * 1972-03-24 1975-07-15 Siemens Ag Channel filter arrangement for a carrier frequency transmission system
DE2425674A1 (de) * 1974-05-28 1975-12-04 Standard Elektrik Lorenz Ag Nullstellenfilter
US4029902A (en) * 1975-10-22 1977-06-14 Hughes Aircraft Company Contiguous channel multiplexer
US4031327A (en) * 1975-04-11 1977-06-21 Thomson-Csf Telephone set and system utilizing frequency division multiplexing
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH271788A (fr) * 1947-04-16 1950-11-15 Cie Ind Telephones Installation de transmission à courants porteurs.

Patent Citations (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
US3865990A (en) * 1972-03-22 1975-02-11 Siemens Ag Radio relay systems
US3895190A (en) * 1972-03-24 1975-07-15 Siemens Ag Channel filter arrangement for a carrier frequency transmission system
DE2425674A1 (de) * 1974-05-28 1975-12-04 Standard Elektrik Lorenz Ag Nullstellenfilter
US4031327A (en) * 1975-04-11 1977-06-21 Thomson-Csf Telephone set and system utilizing frequency division multiplexing
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0023223A4 *

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US7826817B2 (en) 1998-10-21 2010-11-02 Parker Vision, Inc. Applications of universal frequency translation
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US6353735B1 (en) 1998-10-21 2002-03-05 Parkervision, Inc. MDG method for output signal generation
US6580902B1 (en) 1998-10-21 2003-06-17 Parkervision, Inc. Frequency translation using optimized switch structures
US6647250B1 (en) 1998-10-21 2003-11-11 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US6687493B1 (en) 1998-10-21 2004-02-03 Parkervision, Inc. Method and circuit for down-converting a signal using a complementary FET structure for improved dynamic range
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US8340618B2 (en) 1998-10-21 2012-12-25 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US8233855B2 (en) 1998-10-21 2012-07-31 Parkervision, Inc. Up-conversion based on gated information signal
US8190116B2 (en) 1998-10-21 2012-05-29 Parker Vision, Inc. Methods and systems for down-converting a signal using a complementary transistor structure
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
US7865177B2 (en) 1998-10-21 2011-01-04 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US8190108B2 (en) 1998-10-21 2012-05-29 Parkervision, Inc. Method and system for frequency up-conversion
US8160534B2 (en) 1998-10-21 2012-04-17 Parkervision, Inc. Applications of universal frequency translation
US7693502B2 (en) 1998-10-21 2010-04-06 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, transforms for same, and aperture relationships
US8019291B2 (en) 1998-10-21 2011-09-13 Parkervision, Inc. Method and system for frequency down-conversion and frequency up-conversion
US7697916B2 (en) 1998-10-21 2010-04-13 Parkervision, Inc. Applications of universal frequency translation
US7936022B2 (en) 1998-10-21 2011-05-03 Parkervision, Inc. Method and circuit for down-converting a signal
US7937059B2 (en) 1998-10-21 2011-05-03 Parkervision, Inc. Converting an electromagnetic signal via sub-sampling
US6798351B1 (en) 1998-10-21 2004-09-28 Parkervision, Inc. Automated meter reader applications of universal frequency translation
US6421534B1 (en) 1998-10-21 2002-07-16 Parkervision, Inc. Integrated frequency translation and selectivity
US6836650B2 (en) 1998-10-21 2004-12-28 Parkervision, Inc. Methods and systems for down-converting electromagnetic signals, and applications thereof
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7773688B2 (en) 1999-04-16 2010-08-10 Parkervision, Inc. Method, system, and apparatus for balanced frequency up-conversion, including circuitry to directly couple the outputs of multiple transistors
US7724845B2 (en) 1999-04-16 2010-05-25 Parkervision, Inc. Method and system for down-converting and electromagnetic signal, and transforms for same
US7894789B2 (en) 1999-04-16 2011-02-22 Parkervision, Inc. Down-conversion of an electromagnetic signal with feedback control
US8036304B2 (en) 1999-04-16 2011-10-11 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US8229023B2 (en) 1999-04-16 2012-07-24 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments
US8223898B2 (en) 1999-04-16 2012-07-17 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US8224281B2 (en) 1999-04-16 2012-07-17 Parkervision, Inc. Down-conversion of an electromagnetic signal with feedback control
US7929638B2 (en) 1999-04-16 2011-04-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments
US8077797B2 (en) 1999-04-16 2011-12-13 Parkervision, Inc. Method, system, and apparatus for balanced frequency up-conversion of a baseband signal
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US7653145B2 (en) 1999-08-04 2010-01-26 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7822401B2 (en) 2000-04-14 2010-10-26 Parkervision, Inc. Apparatus and method for down-converting electromagnetic signals by controlled charging and discharging of a capacitor
US8295800B2 (en) 2000-04-14 2012-10-23 Parkervision, Inc. Apparatus and method for down-converting electromagnetic signals by controlled charging and discharging of a capacitor
US7991815B2 (en) 2000-11-14 2011-08-02 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US8446994B2 (en) 2001-11-09 2013-05-21 Parkervision, Inc. Gain control in a communication channel
US7653158B2 (en) 2001-11-09 2010-01-26 Parkervision, Inc. Gain control in a communication channel
US8160196B2 (en) 2002-07-18 2012-04-17 Parkervision, Inc. Networking methods and systems
US8407061B2 (en) 2002-07-18 2013-03-26 Parkervision, Inc. Networking methods and systems

Also Published As

Publication number Publication date
EP0023223A1 (de) 1981-02-04
BR8006228A (pt) 1980-12-30
JPS56500198A (de) 1981-02-19
EP0023223A4 (de) 1981-06-30

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