DE4436564C1 - Demodulator für zweidimensional digital modulierte Signale - Google Patents

Demodulator für zweidimensional digital modulierte Signale

Info

Publication number
DE4436564C1
DE4436564C1 DE4436564A DE4436564A DE4436564C1 DE 4436564 C1 DE4436564 C1 DE 4436564C1 DE 4436564 A DE4436564 A DE 4436564A DE 4436564 A DE4436564 A DE 4436564A DE 4436564 C1 DE4436564 C1 DE 4436564C1
Authority
DE
Germany
Prior art keywords
lock
signal values
signals
received signal
demodulator
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 - Fee Related
Application number
DE4436564A
Other languages
German (de)
English (en)
Inventor
Peter Herbig
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.)
Ericsson AB
Original Assignee
ANT Nachrichtentechnik GmbH
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 ANT Nachrichtentechnik GmbH filed Critical ANT Nachrichtentechnik GmbH
Priority to DE4436564A priority Critical patent/DE4436564C1/de
Priority to CH02731/95A priority patent/CH690483A5/de
Priority to IT95MI002042A priority patent/IT1275788B1/it
Priority to BR9504389A priority patent/BR9504389A/pt
Priority to FR9511987A priority patent/FR2725863B1/fr
Application granted granted Critical
Publication of DE4436564C1 publication Critical patent/DE4436564C1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE4436564A 1994-10-13 1994-10-13 Demodulator für zweidimensional digital modulierte Signale Expired - Fee Related DE4436564C1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE4436564A DE4436564C1 (de) 1994-10-13 1994-10-13 Demodulator für zweidimensional digital modulierte Signale
CH02731/95A CH690483A5 (de) 1994-10-13 1995-09-27 Demodulator für zweidimensional digital modulierte Signale.
IT95MI002042A IT1275788B1 (it) 1994-10-13 1995-10-06 Demodulatore per segnali modulati digitalmente bidimensionalmente
BR9504389A BR9504389A (pt) 1994-10-13 1995-10-11 Desmodulador para sinais bidimensionais modulados digitalmente
FR9511987A FR2725863B1 (fr) 1994-10-13 1995-10-12 Demodulateur de signaux numeriques modules bidimentionnels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4436564A DE4436564C1 (de) 1994-10-13 1994-10-13 Demodulator für zweidimensional digital modulierte Signale

Publications (1)

Publication Number Publication Date
DE4436564C1 true DE4436564C1 (de) 1996-02-08

Family

ID=6530653

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4436564A Expired - Fee Related DE4436564C1 (de) 1994-10-13 1994-10-13 Demodulator für zweidimensional digital modulierte Signale

Country Status (5)

Country Link
BR (1) BR9504389A (enExample)
CH (1) CH690483A5 (enExample)
DE (1) DE4436564C1 (enExample)
FR (1) FR2725863B1 (enExample)
IT (1) IT1275788B1 (enExample)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4100099C1 (en) * 1991-01-04 1992-01-16 Ant Nachrichtentechnik Gmbh, 7150 Backnang, De Carrier recover in QAM receiver - generates phase correction signal for oscillator when QAM reception signal value arrives in active zone

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4736386A (en) * 1987-04-06 1988-04-05 Rockwell International Corporation Carrier out-of-lock detector apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4100099C1 (en) * 1991-01-04 1992-01-16 Ant Nachrichtentechnik Gmbh, 7150 Backnang, De Carrier recover in QAM receiver - generates phase correction signal for oscillator when QAM reception signal value arrives in active zone

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MATSUO, Yoshio, NAMIKI, Junji: Carrier Recovery Systems for Arbitrarily Mapped APK Signals. In: IEEE Transactions on Communications, 1982, Nr. 10, S. 2385 *

Also Published As

Publication number Publication date
ITMI952042A0 (enExample) 1995-10-06
FR2725863B1 (fr) 2002-12-27
CH690483A5 (de) 2000-09-15
BR9504389A (pt) 1997-05-27
ITMI952042A1 (it) 1997-04-06
FR2725863A1 (fr) 1996-04-19
IT1275788B1 (it) 1997-10-17

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Legal Events

Date Code Title Description
8100 Publication of patent without earlier publication of application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ROBERT BOSCH GMBH, 70469 STUTTGART, DE

8327 Change in the person/name/address of the patent owner

Owner name: MARCONI COMMUNICATIONS GMBH, 71522 BACKNANG, DE

8327 Change in the person/name/address of the patent owner

Owner name: ERICSSON AB, STOCKHOLM, SE

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee

Effective date: 20140501