GB2358116B - Demodulation circuit and demodulation method with compensation for sampling offset - Google Patents

Demodulation circuit and demodulation method with compensation for sampling offset

Info

Publication number: GB2358116B
Authority: GB; United Kingdom
Prior art keywords: demodulation; compensation; sampling offset; circuit; demodulation circuit
Prior art date: 1999-02-24
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

Inventor

Koichi Tamura

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.)

NEC Corp

Original Assignee

NEC Corp

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.)

1999-02-24

Filing date

2000-02-24

Publication date

2002-11-06

1999-02-24Priority claimed from JP04563699Aexternal-prioritypatent/JP3252820B2/en

2000-02-24Application filed by NEC CorpfiledCriticalNEC Corp

2001-04-18Publication of GB0104978D0publicationCriticalpatent/GB0104978D0/en

2001-07-11Publication of GB2358116ApublicationCriticalpatent/GB2358116A/en

2002-11-06Application grantedgrantedCritical

2002-11-06Publication of GB2358116BpublicationCriticalpatent/GB2358116B/en

2020-02-24Anticipated expirationlegal-statusCritical

StatusExpired - Fee Relatedlegal-statusCriticalCurrent

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0024—Carrier regulation at the receiver end
- H04L2027/0026—Correction of carrier offset
- H04L2027/003—Correction of carrier offset at baseband only
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0053—Closed loops
- H04L2027/0057—Closed loops quadrature phase
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0083—Signalling arrangements
- H04L2027/0089—In-band signals
- H04L2027/0093—Intermittant signals

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

GB0104978A1999-02-242000-02-24Demodulation circuit and demodulation method with compensation for sampling offsetExpired - Fee RelatedGB2358116B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP04563699AJP3252820B2 (en)	1999-02-24	1999-02-24	Demodulation and modulation circuit and demodulation and modulation method
GB0004418AGB2348786B (en)	1999-02-24	2000-02-24	Demodulation circuit and demodulation method with compensation for sampling offset

Publications (3)

Publication Number	Publication Date
GB0104978D0 GB0104978D0 (en)	2001-04-18
GB2358116A GB2358116A (en)	2001-07-11
GB2358116Btrue GB2358116B (en)	2002-11-06

Family

ID=26243726

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB0104978AExpired - Fee RelatedGB2358116B (en)	1999-02-24	2000-02-24	Demodulation circuit and demodulation method with compensation for sampling offset

Country Status (1)

Country	Link
GB (1)	GB2358116B (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4527278A (en)*	1982-04-09	1985-07-02	U.S. Philips Corporation	Method for correcting the frequency of a local carrier in a receiver of a data transmission system and receiver using this method
US5144256A (en)*	1990-12-31	1992-09-01	Samsung Electronics Co., Ltd.	Method and apparatus for demodulating a GMSK signal
US5151926A (en)*	1991-05-21	1992-09-29	General Electric Company	Sample timing and carrier frequency estimation circuit for sine-cosine detectors
EP0608717A2 (en)*	1993-01-14	1994-08-03	Nec Corporation	Phase error canceller for QPSK signals using unique word detectors
US5337331A (en)*	1991-01-31	1994-08-09	Alcatel Telspace	Method of coherent demodulation for phase shift keying and a device for implementing the method
US5343498A (en)*	1993-03-08	1994-08-30	General Electric Company	Sample timing selection and frequency offset correction for U.S. digital cellular mobile receivers
EP0716520A1 (en)*	1994-06-23	1996-06-12	Ntt Mobile Communications Network Inc.	Cdma demodulation circuit and demodulating method
US5666378A (en)*	1994-03-18	1997-09-09	Glenayre Electronics, Inc.	High performance modem using pilot symbols for equalization and frame synchronization
GB2319703A (en)*	1996-11-02	1998-05-27	Plessey Telecomm	AFC in a DMT receiver
US5809009A (en)*	1995-09-13	1998-09-15	Matsushita Electric Industrial Co., Ltd.	Demodulator apparatus for digital radio communication receiver providing pseudo-coherent quadrature demodulation based on periodic estimation of frequency offset
WO2000011814A1 (en)*	1998-08-20	2000-03-02	France Telecom	Digital communication methods with distributed reference symbols

2000
- 2000-02-24GBGB0104978Apatent/GB2358116B/ennot_activeExpired - Fee Related

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4527278A (en)*	1982-04-09	1985-07-02	U.S. Philips Corporation	Method for correcting the frequency of a local carrier in a receiver of a data transmission system and receiver using this method
US5144256A (en)*	1990-12-31	1992-09-01	Samsung Electronics Co., Ltd.	Method and apparatus for demodulating a GMSK signal
US5337331A (en)*	1991-01-31	1994-08-09	Alcatel Telspace	Method of coherent demodulation for phase shift keying and a device for implementing the method
US5151926A (en)*	1991-05-21	1992-09-29	General Electric Company	Sample timing and carrier frequency estimation circuit for sine-cosine detectors
EP0608717A2 (en)*	1993-01-14	1994-08-03	Nec Corporation	Phase error canceller for QPSK signals using unique word detectors
US5343498A (en)*	1993-03-08	1994-08-30	General Electric Company	Sample timing selection and frequency offset correction for U.S. digital cellular mobile receivers
US5666378A (en)*	1994-03-18	1997-09-09	Glenayre Electronics, Inc.	High performance modem using pilot symbols for equalization and frame synchronization
EP0716520A1 (en)*	1994-06-23	1996-06-12	Ntt Mobile Communications Network Inc.	Cdma demodulation circuit and demodulating method
US5809009A (en)*	1995-09-13	1998-09-15	Matsushita Electric Industrial Co., Ltd.	Demodulator apparatus for digital radio communication receiver providing pseudo-coherent quadrature demodulation based on periodic estimation of frequency offset
GB2319703A (en)*	1996-11-02	1998-05-27	Plessey Telecomm	AFC in a DMT receiver
WO2000011814A1 (en)*	1998-08-20	2000-03-02	France Telecom	Digital communication methods with distributed reference symbols

Also Published As

Publication number	Publication date
GB2358116A (en)	2001-07-11
GB0104978D0 (en)	2001-04-18

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Legal Events

Date	Code	Title	Description
2014-11-19	732E	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)	Free format text:REGISTERED BETWEEN 20141023 AND 20141029
2018-10-24	PCNP	Patent ceased through non-payment of renewal fee	Effective date:20180224

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