EP1236325A1 - Procede de transmission numerique visant une flexibilite de largeur de bande et de debit binaire - Google Patents

Procede de transmission numerique visant une flexibilite de largeur de bande et de debit binaire

Info

Publication number
EP1236325A1
EP1236325A1 EP00979653A EP00979653A EP1236325A1 EP 1236325 A1 EP1236325 A1 EP 1236325A1 EP 00979653 A EP00979653 A EP 00979653A EP 00979653 A EP00979653 A EP 00979653A EP 1236325 A1 EP1236325 A1 EP 1236325A1
Authority
EP
European Patent Office
Prior art keywords
periods
code
coding
different
alternating current
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Withdrawn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
EP00979653A
Other languages
German (de)
English (en)
Inventor
Josef Dirr
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1236325A1 publication Critical patent/EP1236325A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/24—Half-wave signalling systems

Definitions

  • the present invention is concerned with the digital transmission of information.
  • higher-quality codings are provided.
  • Such codings are used both via wire-bound and via radio paths and optical fibers.
  • the AS amplitude shift keying
  • the PSK frequency shift keying
  • the FSK frequency shift keying
  • the object of the invention is to provide a digital information transmission in which the transmission paths are optimally utilized by simple bandwidth changes and level or bit switches. This is achieved by the teaching disclosed in claim 1. Brief description of the drawings:
  • Fig. 1, 2, 3 Principle of the phase and continuous pulse coding
  • Fig. 4, 5, 7 Principle of the envelopes and with a soft amplitude transition
  • Fig. 9 A 16-PSK diagram
  • QFig.8, 11 Directional radio system conventional and according to the invention.
  • Fig. 6 Principle of switching to different types of transmission.
  • Fig. 10 Application of the invention to EB.
  • Fig. 12 Switching channels across several nodes.
  • Fig. 13 Flexible code transfer without changing the hardware.
  • Fig. 14 TV receiver principle for single-carrier signal transmission.
  • AM (') « ⁇ ' sin ⁇ ⁇ r + - • u ⁇ • cos ( ⁇ ⁇ - ⁇ M ) t - - • u ⁇ cos ( ⁇ ⁇ - ⁇ M ) r not with the modulation amplitude in the frequency, you get a narrowband transmission.
  • the phase positions of pulses for example to a reference pulse, or the positive or negative difference to the previous pulse are provided as steps.
  • the reference phase is the pulse B1, B2, B3, ...
  • the pulses Bnl, Bn2, Bn3, .. are out of phase by the amount n.
  • the pulses BN1, BN2, BN3 are in phase.
  • This phase code would therefore have 2 levels Bn and BN.
  • These pulses are represented by full-time half-periods or periods of the same frequency. Such a coding is recorded in FIG. 4 periods are assigned to the reference pulse.
  • the 1st pulse BNp therefore has 4 periods.
  • the second pulse Bnn is therefore lagging by the amount n. If the 3rd pulse is to remain lagging, it must have 4 periods, the 4th pulse should be in phase with the reference pulse again, this is achieved by the fact that it receives one period less, i.e. 3 periods. You can also see that each subsequent one Pulse has an amplitude change. The number of stages can be doubled by starting the impulses with a positive and a negative half period. Hatched in the drawing. So you get 2, 4 levels. (Euro patent EP 0 953 246 B1). The pulse duration principle:
  • Pulse duration differences used as steps. 3 shows 3 pulse durations, D1, D2 and D3, that is 3 stages. It also represents a 3-digit code word.
  • the position 1 can assume the levels D1, D2, D3 - the position 2 the levels D2, D1, D3 and the position 3 D3, D1, D2.
  • You get 3 to 3 combinations with 3 levels and 3 digits, i.e. 3x3x3 27 combinations. If you also use the positive and negative start of the levels resp. Code elements, so you get 6 levels. With 3 digits you get 216 combinations.
  • the QAM can also be used.
  • the coding alternating current can also be provided as an alternating transmission current.
  • the envelope changes also result from the amplitude changes. 4 shows one with 2 and 3 periods as stages. fH is the envelope here. 5, on the other hand, the stages 11, 12 and 11, 12, 13 are periods. In both stages, 10 periods are provided as filling elements. You can see here that the frequency of the envelope is much smaller, which means that the bandwidth is also smaller. So you can determine the bandwidth using the filler elements. There is no need to change the coding frequency.
  • FIGS. 1 to 3 You can also control the bit rates very flexibly. It can be seen from FIGS. 1 to 3 that a large number of stages can be provided without having to change the coding frequency. Depending on the type of transmission, language, data, images, the code words can be precisely matched to the required number of bits, which of course also applies to ATM.
  • the principle is shown in FIG.
  • the coding frequency is generated in the oscillator OSC and fed to the modulator MO. Depending on whether music, marriage or picture or. If television is to be transmitted, marked by the feed M, S, B on the encoder, the appropriate stages and code words - after all, only period counting and amplitude switching are necessary - are given to the modulator. This avoids redundancy.
  • the number of bits in the code words is therefore precisely adapted to the respective type of transmission.
  • the code words are then decrypted in the decoder D Cod and converted into the respective analog values of M or S or B.
  • a soft amplitude switchover is provided in FIG.
  • a comparison is made with a directional radio system, the basic circuit of which is shown in FIG. This is designed for 34.368 Mbit / s.
  • the bandwidth is 1700-2100 MHz with 4 PSK coding.
  • the hardware is very complex. In the case of a code according to FIGS. 1-3 or 4, the specified bandwidth would not be sufficient.
  • FIG. 10 shows a carrier transmission based on single sideband EB.
  • the information Jf is coded with the coding alternating current fM in the encoder Cod and carried with the alternating current fTr in the ring modulator RM.
  • the carrier is +/- modulation frequency.
  • the lower sideband is filtered out with the high pass HP, so that only the upper sideband, which also contains all of the information, is transmitted.
  • the modulation amplitude is not included in the frequency.
  • 12 shows network nodes K1, K2, K3 with coupling arrangements included. Each node has a control unit St. The remote connections of the local connections to the respective control unit are connected via 0. It is statistically recorded how much traffic goes directly from node 1 to node 3. Correspondingly, channels in node K2 are then switched through immediately.
  • FIG. 13 A coding of the color television signals is shown in FIG. 13.
  • the luminance taps L are assigned 8 bits. 4 luminance taps, 1 color tap I / Q respectively. red / blue with 6 bits each. These 12 bits are then appended to the 4x8 bit of the luminance values. 1 bit for control signals and speech is assigned to each luma- ment tap. So 1 tap must be coded for each tap. A carrier is therefore sufficient for the transmission. Therefore, the television receiver according to FIG. 14 can also be designed like a superhet radio receiver up to the decoder, that is to say the input stage, mixer stage, demodulator. The signals are then separated in the decoder according to their tasks. The color difference signals are then generated via the matrix M. AS, Y, tone T and other signals SO are connected to the corresponding modules.
  • a channel is assigned to each parallel code element lp to 12p, i.e. channels 1 to 12 for the 12 code elements lp to 12p.
  • code words are formed in series, e.g. Ilp, IIlp, IIIlp, IVlp, IlP, ... If there were speech 8 code elements required in series.
  • code words can have any size. It only depends on the type of information to be transmitted.
  • parallel / serial converter then obtains the serially-arranged code words ⁇ . With memories and multiplexers you can, for example, occupy all 12 channels. Each channel can transmit codewords of different sizes.
  • a block but not a cell transmission is expedient.
  • the transmission of the information for example of the 12 channels, can take place with any code, with 4PSK, QAM.
  • the most expedient is the code of the present invention. Ness with memory and the icosgeschwindig ⁇ you always possibilities of adaptation.
  • the information of the respective channel can be encoded using an alternating coding current.
  • Two alternating currents of the same frequency can also be provided for this purpose, which are 90 ° out of phase with one another and added for the transmission.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)

Abstract

La présente invention vise le réglage flexible des largeurs de bande et des débits binaires. Dans le cas d'un codage de courant alternatif, dans lequel la position de phase ou la durée des impulsions, marquées par des demi-périodes ou des périodes, sont prévues en tant qu'étapes, la flexibilité est réalisée par augmentation ou réduction du nombre d'éléments de remplissage affectés aux éléments de code actifs, la flexibilité du débit binaire étant réalisée par augmentation ou réduction de position ou d'étape, ou par disposition des éléments de code parallèles de mots de code virtuels en série par rapport à des mots de code destinés à la transmission d'informations.
EP00979653A 1999-12-07 2000-12-01 Procede de transmission numerique visant une flexibilite de largeur de bande et de debit binaire Withdrawn EP1236325A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19958922 1999-12-07
DE19958922 1999-12-07
DE10049339 2000-10-05
DE10049339 2000-10-05
PCT/EP2000/012058 WO2001043385A1 (fr) 1999-12-07 2000-12-01 Procede de transmission numerique visant une flexibilite de largeur de bande et de debit binaire

Publications (1)

Publication Number Publication Date
EP1236325A1 true EP1236325A1 (fr) 2002-09-04

Family

ID=26007276

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00979653A Withdrawn EP1236325A1 (fr) 1999-12-07 2000-12-01 Procede de transmission numerique visant une flexibilite de largeur de bande et de debit binaire

Country Status (6)

Country Link
US (1) US7027525B2 (fr)
EP (1) EP1236325A1 (fr)
CN (1) CN1408167A (fr)
AU (1) AU1706401A (fr)
DE (1) DE10059640A1 (fr)
WO (1) WO2001043385A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10308161A1 (de) * 2002-03-21 2003-10-09 Josef Dirr Verfahren für die synchrone Übertragung digitaler Information
US7122384B2 (en) * 2002-11-06 2006-10-17 E. I. Du Pont De Nemours And Company Resonant light scattering microparticle methods
DE10361992A1 (de) * 2003-05-05 2004-12-09 Josef Dirr Verfahren zur Verschlüsselung digitalisierter Information
US7308025B2 (en) * 2003-07-23 2007-12-11 Intel Corporation Transmitters providing cycle encoded signals
US7305023B2 (en) * 2003-07-23 2007-12-04 Intel Corporation Receivers for cycle encoded signals
JP5348263B2 (ja) * 2012-02-29 2013-11-20 富士通株式会社 データ伝送装置、データ伝送システムおよびデータ伝送方法
US9531478B2 (en) 2013-11-08 2016-12-27 Futurewei Technologies, Inc. Digital optical modulator for programmable n-quadrature amplitude modulation generation

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
DE3831054A1 (de) * 1988-09-12 1990-03-22 Dirr Josef Verfahren fuer die digitale codierung von information eines, zweier oder mehrerer kanaele und/oder frequenzreduzierung des bezw. der codierwechselstroeme und uebertragung derselben
US4965533A (en) * 1989-08-31 1990-10-23 Qualcomm, Inc. Direct digital synthesizer driven phase lock loop frequency synthesizer
US5072195A (en) * 1990-04-05 1991-12-10 Gazelle Microcircuits, Inc. Phase-locked loop with clamped voltage-controlled oscillator
FR2674709A1 (fr) * 1991-03-29 1992-10-02 Philips Electronique Lab Decodeur multietages.
US5576835A (en) * 1992-02-24 1996-11-19 Dirr; Josef Method for run-length coding for shortening transmission time
US5587797A (en) * 1992-11-06 1996-12-24 Dirr; Josef Process for encoding and transmitting information
EP0599225B1 (fr) * 1992-11-20 1998-05-13 Nisshin Steel Co., Ltd. Matériaux à base de fer à haute résistance à l'oxydation aux températures élevées et procédé de leur production
US5329251A (en) * 1993-04-28 1994-07-12 National Semiconductor Corporation Multiple biasing phase-lock-loops controlling center frequency of phase-lock-loop clock recovery circuit
US5463351A (en) * 1994-09-29 1995-10-31 Motorola, Inc. Nested digital phase lock loop
US5610558A (en) * 1995-11-03 1997-03-11 Motorola, Inc. Controlled tracking of oscillators in a circuit with multiple frequency sensitive elements
JPH09172370A (ja) * 1995-12-19 1997-06-30 Toshiba Corp Ｐｌｌ回路
US6072829A (en) * 1997-02-19 2000-06-06 Dirr; Josef Method of higher value step encoding
AU5762198A (en) * 1997-02-19 1998-04-24 Josef Dirr Method of high-order codification and transmission of information
US6215835B1 (en) * 1997-08-22 2001-04-10 Lsi Logic Corporation Dual-loop clock and data recovery for serial data communication
ES2147679T3 (es) * 1998-06-26 2000-09-16 Josef Dirr Procedimiento para la multiplicacion de niveles de codificacion.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0143385A1 *

Also Published As

Publication number Publication date
US7027525B2 (en) 2006-04-11
AU1706401A (en) 2001-06-18
US20030076897A1 (en) 2003-04-24
DE10059640A1 (de) 2001-06-13
CN1408167A (zh) 2003-04-02
WO2001043385A1 (fr) 2001-06-14

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