WO2001047131A2 - Verfahren und schaltung zur übertragung eines datenmodulierten hochfrequenz-datensignals von einem sender zu einem empfänger mit vereinfachter empfängerarchitektur - Google Patents
Verfahren und schaltung zur übertragung eines datenmodulierten hochfrequenz-datensignals von einem sender zu einem empfänger mit vereinfachter empfängerarchitektur Download PDFInfo
- Publication number
- WO2001047131A2 WO2001047131A2 PCT/DE2000/004398 DE0004398W WO0147131A2 WO 2001047131 A2 WO2001047131 A2 WO 2001047131A2 DE 0004398 W DE0004398 W DE 0004398W WO 0147131 A2 WO0147131 A2 WO 0147131A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frequency data
- data signal
- data
- frequency
- signal
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/22—Circuits for receivers in which no local oscillation is generated
- H04B1/24—Circuits for receivers in which no local oscillation is generated the receiver comprising at least one semiconductor device having three or more electrodes
Definitions
- the invention relates to a method for transmitting a data-modulated high-frequency data signal from a transmitter to a receiver with the features of the preamble of claim 1 and a circuit in this field with the features of the preamble of claim 8.
- Circuits for transmitting a data-modulated high-frequency data signal from a transmitter to a receiver are known in the prior art, in which an oscillator and a PLL synthesizer are provided in the receiver in order to shift the received high-frequency data signal into a lower frequency band for further processing ,
- Such circuits are complex and have a high power consumption. They are therefore not suitable for mobile data storage e.g. for data transmission between a read / write device and at least one mobile data memory in an identification system with several mobile data memories attached to objects for the acquisition of object-related status and / or process data e.g. in a shipping, transport and / or manufacturing system of the individual objects.
- the invention is based on the object of offering a circuit for transmitting a data-modulated high-frequency data signal from a transmitter to a receiver, in which the receiver is of simpler construction and consumes less power. Furthermore, a method for operating such a circuit is to be offered.
- a further high-frequency data signal is transmitted, which is used for frequency shifting and / or for carrier code demodulation. This means that separate signals no longer have to be generated in the receiver for these purposes and the components required for this, such as PLL synthesizer and oscillator.
- the latter can also include a carrier code, e.g. have a spread spectrum code.
- a carrier code e.g. have a spread spectrum code.
- the two high-frequency data signals can be mixed in both process variants - with or without separation before amplification - in a mixer in which the frequencies are converted and correlated.
- an antenna is initially provided for the joint reception of the data-modulated high-frequency data signal and an additional high-frequency data signal. Furthermore, an amplifier is used for the respective amplification of the two high-frequency data signals and it is one Mixer unit for mixing the high-frequency data signals to generate an intermediate frequency data signal is provided.
- this separation can be carried out in a filter unit, e.g. a diplexer filter.
- the mixer unit for mixing the high-frequency data signals after their reception and amplification to generate a data-modulated intermediate frequency data signal can be designed as a frequency converter / correlator mixer.
- FIG. 2 shows a circuit according to the invention with a simplified receiver architecture.
- FIG. 1 shows a circuit of a receiver according to the prior art for receiving a data-modulated high-frequency data signal f c (signal f c ) which is received via the antenna 1 and then first of all a filter 2 for suppressing out-of-band interference signals (wide-up Filter). After passing through the amplifier 3, the signal f c enters the mixer 4, into which the data signal f L0 (signal f L0 ) from the local (receiver-internal) oscillator 5 is also fed.
- the signal f L0 is generated in a manner known per se because of the tracking synchronization (PLL, phase-locked loop) through the interaction of the oscillator 5, in particular a voltage-controlled oscillator (VCO, voltage-controlled-oscillator). lator), a PLL synthesizer 6 and a frequency generator 7 and the control and monitoring of the microcontroller 14.
- PLL tracking synchronization
- VCO voltage-controlled oscillator
- lator PLL synthesizer 6
- frequency generator 7 the control and monitoring of the microcontroller 14.
- the frequency sum is suppressed by filter 8, an intermediate frequency filter acting as a channel filter.
- the signal fj S with the internal key frequency is provided by the microcontroller 14.
- the despread mixer signal f M2 passes through the amplifier 11, the detector 12 and the data shaper 13 for data demodulation and for further processing in the microcontroller 14.
- FIG. 2 shows a schematic representation of a circuit according to the invention of a receiver for receiving a data-modulated high-frequency data signal f c (signal f c ) from a transmitter.
- a data-modulated high-frequency data signal f c (signal f c ) from a transmitter.
- an additional high-frequency data signal f s (signal f s ) is also received via the antenna 1.
- the two signals f c and f s pass through a filter 2 for suppressing out-of-band interference signals (wide-up filter) and an amplifier 3.
- the high-frequency data signal f c is also carrier code modulated, for example as a ⁇ pread spectrum signal
- carrier band filters 15a, 15b for separating the signals f c and f s are provided, the signal f c being amplified in the carrier band amplifier 16a and the signal f s in the carrier band amplifier 16b.
- the signals which have been separately amplified in this way are then fed back to the mixer 17, in which frequency conversion and carrier code demodulation of the signal f c by the signal f s take place.
- both the frequency sum f c + f s and the frequency difference f c - f s occur at the output of the mixer 17, the frequency sum being suppressed by the intermediate frequency filter 8.
- the intermediate frequency filter 8 leaves a mixer signal f M3 (signal f M ) which is at an intermediate frequency position below the frequency of the signal f c , the carrier re-modulation of the data signal f c having been eliminated at the same time (“despreading”).
- the signal f M is data demodulated in the amplifier 11, in the detector 12 and in the data shaper 13 in the manner also described in FIG. 1 and fed to the microcontroller 14 for further processing.
- both data signals f c and f s can be amplified together and fed to the mixer 17 (not shown).
- the frequency is converted into the intermediate frequency position and / or the despreading of the data signal f c by the external signal f s , which is transmitted together with the signal f c .
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
- Mobile Radio Communication Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00993561A EP1240720B1 (de) | 1999-12-22 | 2000-12-11 | Verfahren und schaltung zur übertragung eines datenmodulierten hochfrequenz-datensignals von einem sender zu einem empfänger mit vereinfachter empfängerarchitektur |
DE50014301T DE50014301D1 (de) | 1999-12-22 | 2000-12-11 | Verfahren und schaltung zur übertragung eines datenmodulierten hochfrequenz-datensignals von einem sender zu einem empfänger mit vereinfachter empfängerarchitektur |
US10/176,529 US6944240B2 (en) | 1999-12-22 | 2002-06-24 | Method and circuit for transmitting a data-modulated high-frequency data signal from a transmitter to a receiver having a simplified receiver architecture |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19962458.5 | 1999-12-22 | ||
DE19962458A DE19962458C2 (de) | 1999-12-22 | 1999-12-22 | Verfahren und Schaltung zur Übertragung eines datenmodulierten Hochfrequenz-Datensignals von einem Sender zu einem Empfänger mit vereinfachter Empfängerarchitektur |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/176,529 Continuation US6944240B2 (en) | 1999-12-22 | 2002-06-24 | Method and circuit for transmitting a data-modulated high-frequency data signal from a transmitter to a receiver having a simplified receiver architecture |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001047131A2 true WO2001047131A2 (de) | 2001-06-28 |
WO2001047131A3 WO2001047131A3 (de) | 2001-12-27 |
Family
ID=7934130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/004398 WO2001047131A2 (de) | 1999-12-22 | 2000-12-11 | Verfahren und schaltung zur übertragung eines datenmodulierten hochfrequenz-datensignals von einem sender zu einem empfänger mit vereinfachter empfängerarchitektur |
Country Status (5)
Country | Link |
---|---|
US (1) | US6944240B2 (de) |
EP (1) | EP1240720B1 (de) |
AT (1) | ATE361587T1 (de) |
DE (2) | DE19962458C2 (de) |
WO (1) | WO2001047131A2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2806248B1 (de) * | 2013-04-12 | 2018-09-12 | Leica Geosystems AG | Verfahren zur Kalibrierung einer Erfassungseinrichtung und Erfassungseinrichtung |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4696044A (en) * | 1986-09-29 | 1987-09-22 | Waller Jr James K | Dynamic noise reduction with logarithmic control |
US4942591A (en) * | 1989-03-07 | 1990-07-17 | Agilis Corporation | Multiple phase PSK demodulator |
JP2972040B2 (ja) * | 1992-11-26 | 1999-11-08 | 東洋通信機株式会社 | 個体識別用送受信装置 |
DE4435241A1 (de) * | 1994-10-04 | 1996-04-11 | Sel Alcatel Ag | Vorrichtung zum selektiven Auslesen von Transpondern |
JP3414604B2 (ja) * | 1996-12-27 | 2003-06-09 | シャープ株式会社 | 2出力低雑音ダウンコンバータ回路 |
WO1998053557A2 (en) * | 1997-05-16 | 1998-11-26 | Koninklijke Philips Electronics N.V. | Transponder communication device |
US6405025B1 (en) * | 1997-12-09 | 2002-06-11 | Nokia Mobile Phones Limited | Method for selecting the frequency range in radio communication devices operating in several frequency ranges and a radio communication device |
GB9811380D0 (en) * | 1998-05-27 | 1998-07-22 | Nokia Mobile Phones Ltd | A transciever for wireless communication |
EP1006669B1 (de) * | 1998-11-30 | 2006-08-09 | Robert Bosch Gmbh | Eine schaltbare Breitbandseingangsstufe für einen Mehrbandempfänger |
DE19901751B4 (de) * | 1999-01-18 | 2005-11-24 | Rohde & Schwarz Gmbh & Co. Kg | Mehrfachüberlagerungsstufe für einen Empfänger oder Spektrumanalysator |
-
1999
- 1999-12-22 DE DE19962458A patent/DE19962458C2/de not_active Expired - Fee Related
-
2000
- 2000-12-11 DE DE50014301T patent/DE50014301D1/de not_active Expired - Lifetime
- 2000-12-11 AT AT00993561T patent/ATE361587T1/de not_active IP Right Cessation
- 2000-12-11 WO PCT/DE2000/004398 patent/WO2001047131A2/de active IP Right Grant
- 2000-12-11 EP EP00993561A patent/EP1240720B1/de not_active Expired - Lifetime
-
2002
- 2002-06-24 US US10/176,529 patent/US6944240B2/en not_active Expired - Fee Related
Non-Patent Citations (3)
Title |
---|
DAVARIAN F: "MOBILE DIGITAL COMMUNICATIONS VIA TONE CALIBRATION" IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY,US,IEEE INC. NEW YORK, Bd. VT-36, Nr. 2, Mai 1987 (1987-05), Seiten 55-62, XP000759221 ISSN: 0018-9545 * |
HOLDEN T P ET AL: "A SPREAD-SPECTRUM BASED SYNCHRONIZATION TECHNIQUE FOR DIGITAL BROADCAST SYSTEMS" IEEE TRANSACTIONS ON BROADCASTING,US,IEEE INC. NEW YORK, Bd. 36, Nr. 3, 1. September 1990 (1990-09-01), Seiten 185-194, XP000161660 ISSN: 0018-9316 * |
LEE K K ET AL: "A NEW FEEDFORWARD TRACKING SYSTEM BANDPASS FILTER FOR CARRIER RECOVERY SYSTEMS" INTERNATIONAL CONFERENCE ON COMMUNICATIONS,US,NEW YORK, IEEE, Bd. -, 1. Juni 1985 (1985-06-01), Seiten 1010-1014, XP000795171 * |
Also Published As
Publication number | Publication date |
---|---|
EP1240720A2 (de) | 2002-09-18 |
DE19962458A1 (de) | 2001-07-05 |
US20030012304A1 (en) | 2003-01-16 |
ATE361587T1 (de) | 2007-05-15 |
DE50014301D1 (de) | 2007-06-14 |
DE19962458C2 (de) | 2002-02-28 |
EP1240720B1 (de) | 2007-05-02 |
WO2001047131A3 (de) | 2001-12-27 |
US6944240B2 (en) | 2005-09-13 |
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