|
GB595712A
(en)
*
|
1943-08-02 |
1947-12-15 |
Comm Engineering Pty Ltd |
Multi-channel telephone systems
|
|
US3991273A
(en)
*
|
1943-10-04 |
1976-11-09 |
Bell Telephone Laboratories, Incorporated |
Speech component coded multiplex carrier wave transmission
|
|
GB615922A
(en)
*
|
1945-05-02 |
1949-01-13 |
Philips Nv |
Improvements in multiplex carrier-wave telephony
|
|
BE479409A
(de)
*
|
1945-05-15 |
|
|
|
|
US2444534A
(en)
*
|
1946-02-01 |
1948-07-06 |
Farnsworth Res Corp |
Single side-band modulation system
|
|
BE475938A
(de)
*
|
1946-04-08 |
|
|
|
|
US2607853A
(en)
*
|
1947-01-27 |
1952-08-19 |
British Telecomm Res Ltd |
Telecommunication system
|
|
US2775646A
(en)
*
|
1950-11-30 |
1956-12-25 |
Hartford Nat Bank & Trust Co |
Single-sideband apparatus
|
|
NL93838C
(de)
*
|
1953-02-18 |
|
|
|
|
US3068454A
(en)
*
|
1959-01-30 |
1962-12-11 |
Zack D Reynolds |
Method of recording a multiple of electrical signals
|
|
DE1274663C2
(de)
*
|
1965-05-24 |
1980-09-18 |
Siemens Ag |
Aufbau der grundprimaergruppe eines einseitenband-traegerfrequenzsystems ueber eine vormodulationsstufe
|
|
US4586174A
(en)
*
|
1983-08-16 |
1986-04-29 |
The Variable Speech Control Company ("Vsc") |
Audio channel stacking with speech compression for narrow band transmission with provision for dialed calls
|
|
WO1985000944A1
(en)
*
|
1983-08-16 |
1985-02-28 |
The Variable Speech Control Company ("Vsc") |
Audio channel stacking with speech compression for narrow band transmission with provision for dialed calls
|
|
US6694128B1
(en)
|
1998-08-18 |
2004-02-17 |
Parkervision, Inc. |
Frequency synthesizer using universal frequency translation technology
|
|
US6091940A
(en)
*
|
1998-10-21 |
2000-07-18 |
Parkervision, Inc. |
Method and system for frequency up-conversion
|
|
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
|
|
US6061555A
(en)
|
1998-10-21 |
2000-05-09 |
Parkervision, Inc. |
Method and system for ensuring reception of a communications signal
|
|
US6560301B1
(en)
|
1998-10-21 |
2003-05-06 |
Parkervision, Inc. |
Integrated frequency translation and selectivity with a variety of filter embodiments
|
|
US6049706A
(en)
*
|
1998-10-21 |
2000-04-11 |
Parkervision, Inc. |
Integrated frequency translation and selectivity
|
|
US7236754B2
(en)
|
1999-08-23 |
2007-06-26 |
Parkervision, Inc. |
Method and system for frequency up-conversion
|
|
US7027786B1
(en)
|
1998-10-21 |
2006-04-11 |
Parkervision, Inc. |
Carrier and clock recovery using universal frequency translation
|
|
US7295826B1
(en)
|
1998-10-21 |
2007-11-13 |
Parkervision, Inc. |
Integrated frequency translation and selectivity with gain control functionality, and applications thereof
|
|
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
|
|
US6370371B1
(en)
*
|
1998-10-21 |
2002-04-09 |
Parkervision, Inc. |
Applications of universal frequency translation
|
|
US6542722B1
(en)
*
|
1998-10-21 |
2003-04-01 |
Parkervision, Inc. |
Method and system for frequency up-conversion with variety of transmitter configurations
|
|
US6804825B1
(en)
*
|
1998-11-30 |
2004-10-12 |
Microsoft Corporation |
Video on demand methods and systems
|
|
US7006805B1
(en)
|
1999-01-22 |
2006-02-28 |
Parker Vision, Inc. |
Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service
|
|
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
|
|
US6879817B1
(en)
|
1999-04-16 |
2005-04-12 |
Parkervision, Inc. |
DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
|
|
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
|
|
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
|
|
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
|
|
US7065162B1
(en)
*
|
1999-04-16 |
2006-06-20 |
Parkervision, Inc. |
Method and system for down-converting an electromagnetic signal, and transforms for same
|
|
US7054296B1
(en)
|
1999-08-04 |
2006-05-30 |
Parkervision, Inc. |
Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation
|
|
US7072390B1
(en)
|
1999-08-04 |
2006-07-04 |
Parkervision, Inc. |
Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments
|
|
US8295406B1
(en)
|
1999-08-04 |
2012-10-23 |
Parkervision, Inc. |
Universal platform module for a plurality of communication protocols
|
|
US7082171B1
(en)
|
1999-11-24 |
2006-07-25 |
Parkervision, Inc. |
Phase shifting applications of universal frequency translation
|
|
US6963734B2
(en)
|
1999-12-22 |
2005-11-08 |
Parkervision, Inc. |
Differential frequency down-conversion using techniques of universal frequency translation technology
|
|
US7292835B2
(en)
*
|
2000-01-28 |
2007-11-06 |
Parkervision, Inc. |
Wireless and wired cable modem applications of universal frequency translation technology
|
|
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
|
|
US7454453B2
(en)
*
|
2000-11-14 |
2008-11-18 |
Parkervision, Inc. |
Methods, systems, and computer program products for parallel correlation and applications thereof
|
|
US7010559B2
(en)
*
|
2000-11-14 |
2006-03-07 |
Parkervision, Inc. |
Method and apparatus for a parallel correlator and applications thereof
|
|
US7072427B2
(en)
|
2001-11-09 |
2006-07-04 |
Parkervision, Inc. |
Method and apparatus for reducing DC offsets in a communication system
|
|
US7085335B2
(en)
|
2001-11-09 |
2006-08-01 |
Parkervision, Inc. |
Method and apparatus for reducing DC offsets in a communication system
|
|
US6975848B2
(en)
|
2002-06-04 |
2005-12-13 |
Parkervision, Inc. |
Method and apparatus for DC offset removal in a radio frequency communication channel
|
|
US7321640B2
(en)
|
2002-06-07 |
2008-01-22 |
Parkervision, Inc. |
Active polyphase inverter filter for quadrature signal generation
|
|
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
|
|
TWI280690B
(en)
*
|
2003-03-18 |
2007-05-01 |
Tdk Corp |
Electronic device for wireless communications and reflector device for wireless communication cards
|