ES345223A1 - Un procedimiento para la transmision de informaciones o da-tos digitales. - Google Patents
Un procedimiento para la transmision de informaciones o da-tos digitales.Info
- Publication number
- ES345223A1 ES345223A1 ES345223A ES345223A ES345223A1 ES 345223 A1 ES345223 A1 ES 345223A1 ES 345223 A ES345223 A ES 345223A ES 345223 A ES345223 A ES 345223A ES 345223 A1 ES345223 A1 ES 345223A1
- Authority
- ES
- Spain
- Prior art keywords
- pulse
- echo
- pulses
- main pulse
- input
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/497—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems by correlative coding, e.g. partial response coding or echo modulation coding transmitters and receivers for partial response systems
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Dc Digital Transmission (AREA)
- Bidirectional Digital Transmission (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8054A FR1504609A (fr) | 1966-09-21 | 1966-09-21 | Système de transmission de données |
Publications (1)
Publication Number | Publication Date |
---|---|
ES345223A1 true ES345223A1 (es) | 1968-11-01 |
Family
ID=8970554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES345223A Expired ES345223A1 (es) | 1966-09-21 | 1967-09-20 | Un procedimiento para la transmision de informaciones o da-tos digitales. |
Country Status (10)
Country | Link |
---|---|
US (1) | US3523291A (es) |
AT (1) | AT274901B (es) |
BE (1) | BE700215A (es) |
CH (1) | CH459312A (es) |
DE (1) | DE1292167B (es) |
ES (1) | ES345223A1 (es) |
FR (1) | FR1504609A (es) |
GB (1) | GB1154648A (es) |
NL (1) | NL153749B (es) |
SE (1) | SE344863B (es) |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2153376B2 (de) * | 1971-10-27 | 1976-09-30 | Fujitsu Ltd., Kawasaki, Kanagawa (Japan) | Digitale nachrichtenuebertragungsanordnung |
NL181896C (nl) * | 1979-06-05 | 1987-11-16 | Philips Nv | Elektronische zender voor gelijkstroomtelegrafietransmissie. |
US5255269A (en) * | 1992-03-30 | 1993-10-19 | Spacecom Systems, Inc. | Transmission of data by frequency modulation using gray code |
US6061551A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for down-converting electromagnetic signals |
US6694128B1 (en) | 1998-08-18 | 2004-02-17 | Parkervision, Inc. | Frequency synthesizer using universal frequency translation technology |
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 |
US6091940A (en) | 1998-10-21 | 2000-07-18 | Parkervision, Inc. | Method and system for frequency up-conversion |
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 |
US6560301B1 (en) | 1998-10-21 | 2003-05-06 | Parkervision, Inc. | Integrated frequency translation and selectivity with a variety of filter embodiments |
US7236754B2 (en) | 1999-08-23 | 2007-06-26 | Parkervision, Inc. | Method and system for frequency up-conversion |
US6061555A (en) * | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for ensuring reception of a communications signal |
US6049706A (en) | 1998-10-21 | 2000-04-11 | Parkervision, Inc. | Integrated frequency translation and selectivity |
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 |
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 |
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 |
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 |
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 |
US6879817B1 (en) | 1999-04-16 | 2005-04-12 | Parkervision, Inc. | DC offset, re-radiation, and I/Q solutions using universal frequency translation technology |
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 |
US8295406B1 (en) | 1999-08-04 | 2012-10-23 | Parkervision, Inc. | Universal platform module for a plurality of communication protocols |
US7072390B1 (en) | 1999-08-04 | 2006-07-04 | Parkervision, Inc. | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments |
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 |
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 |
US7085335B2 (en) | 2001-11-09 | 2006-08-01 | Parkervision, Inc. | Method and apparatus for reducing DC offsets in a communication system |
US7072427B2 (en) * | 2001-11-09 | 2006-07-04 | 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 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3056085A (en) * | 1959-11-30 | 1962-09-25 | Bell Telephone Labor Inc | Communication system employing pulse code modulation |
US3320534A (en) * | 1963-08-06 | 1967-05-16 | Itt | Pulse code modulation encoding and decoding apparatus |
NL293852A (es) * | 1962-06-08 | |||
FR1404648A (fr) * | 1964-05-13 | 1965-07-02 | Ibm France | Procédé de transmission de données et dispositif réalisant cette transmission |
DE1207436B (de) * | 1964-06-03 | 1965-12-23 | Standard Elektrik Lorenz Ag | Nichtlineares Codier- bzw. Decodier-System |
FR1413909A (fr) * | 1964-06-26 | 1965-10-15 | Ibm France | Amélioration dans les transmissions d'informations |
US3395400A (en) * | 1966-04-26 | 1968-07-30 | Bell Telephone Labor Inc | Serial to parallel data converter |
-
1966
- 1966-09-21 FR FR8054A patent/FR1504609A/fr not_active Expired
-
1967
- 1967-06-20 BE BE700215D patent/BE700215A/xx not_active IP Right Cessation
- 1967-07-07 DE DEI34083A patent/DE1292167B/de not_active Withdrawn
- 1967-07-07 AT AT637467A patent/AT274901B/de active
- 1967-09-05 GB GB40619/67A patent/GB1154648A/en not_active Expired
- 1967-09-12 US US667203A patent/US3523291A/en not_active Expired - Lifetime
- 1967-09-20 ES ES345223A patent/ES345223A1/es not_active Expired
- 1967-09-20 NL NL676712865A patent/NL153749B/xx not_active IP Right Cessation
- 1967-09-21 SE SE12978/67A patent/SE344863B/xx unknown
- 1967-09-21 CH CH1322467A patent/CH459312A/de unknown
Also Published As
Publication number | Publication date |
---|---|
SE344863B (es) | 1972-05-02 |
FR1504609A (fr) | 1967-12-08 |
GB1154648A (en) | 1969-06-11 |
CH459312A (de) | 1968-07-15 |
AT274901B (de) | 1969-10-10 |
US3523291A (en) | 1970-08-04 |
BE700215A (es) | 1967-12-01 |
NL153749B (nl) | 1977-06-15 |
NL6712865A (es) | 1968-03-22 |
DE1292167B (de) | 1969-04-10 |
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