GB2323505B - Radio receiver for use in the reception of digital multiplexing signals - Google Patents

Radio receiver for use in the reception of digital multiplexing signals

Info

Publication number
GB2323505B
GB2323505B GB9812788A GB9812788A GB2323505B GB 2323505 B GB2323505 B GB 2323505B GB 9812788 A GB9812788 A GB 9812788A GB 9812788 A GB9812788 A GB 9812788A GB 2323505 B GB2323505 B GB 2323505B
Authority
GB
United Kingdom
Prior art keywords
reception
radio receiver
multiplexing signals
digital multiplexing
digital
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
GB9812788A
Other versions
GB9812788D0 (en
GB2323505A (en
Inventor
Hiroyuki Kiyanagi
Yuitsu Ogata
Toshio Tamura
Hisao Narita
Takahiko Terakado
Kenzo Kobayashi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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
Priority claimed from JP6322017A external-priority patent/JP2911773B2/en
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of GB9812788D0 publication Critical patent/GB9812788D0/en
Publication of GB2323505A publication Critical patent/GB2323505A/en
Application granted granted Critical
Publication of GB2323505B publication Critical patent/GB2323505B/en
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
    • H04L27/3809—Amplitude regulation arrangements
    • 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
    • H04L27/3818—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers
    • H04L27/3827—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers in which the carrier is recovered using only the demodulated baseband signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB9812788A 1994-03-18 1995-03-14 Radio receiver for use in the reception of digital multiplexing signals Expired - Fee Related GB2323505B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4871294 1994-03-18
JP6322017A JP2911773B2 (en) 1994-03-18 1994-12-26 Digital multiplex radio receiver
GB9505108A GB2288107B (en) 1994-03-18 1995-03-14 Radio receiver for use in the reception of digital multiplexing signals

Publications (3)

Publication Number Publication Date
GB9812788D0 GB9812788D0 (en) 1998-08-12
GB2323505A GB2323505A (en) 1998-09-23
GB2323505B true GB2323505B (en) 1998-11-04

Family

ID=27267626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9812788A Expired - Fee Related GB2323505B (en) 1994-03-18 1995-03-14 Radio receiver for use in the reception of digital multiplexing signals

Country Status (1)

Country Link
GB (1) GB2323505B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4587498A (en) * 1983-03-07 1986-05-06 Telecummunications Radioelectriques et Telephoniques T.R.T. Circuit for recovering the carrier of an amplitude-and-phase-modulated input signal
EP0212582A2 (en) * 1985-08-15 1987-03-04 Nec Corporation Demodulation system capable of establishing synchronization in a transient state
EP0213309A2 (en) * 1985-06-29 1987-03-11 Nec Corporation Automatic gain control circuit
EP0262644A2 (en) * 1986-09-30 1988-04-06 Nec Corporation QAM Demodulator with rapid resynchronization function
EP0314196A2 (en) * 1987-10-30 1989-05-03 Nec Corporation Validity decision circuit capable of correctly deciding validity of an error signal in a multilevel quadrature amplitude demodulator
EP0524559A2 (en) * 1991-07-26 1993-01-27 General Instrument Corporation Of Delaware Carrier phase recovery for an adaptive equalizer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4587498A (en) * 1983-03-07 1986-05-06 Telecummunications Radioelectriques et Telephoniques T.R.T. Circuit for recovering the carrier of an amplitude-and-phase-modulated input signal
EP0213309A2 (en) * 1985-06-29 1987-03-11 Nec Corporation Automatic gain control circuit
EP0486474A2 (en) * 1985-06-29 1992-05-20 Nec Corporation Method for adapting a transversal equalizer, without carrier synchronism
EP0212582A2 (en) * 1985-08-15 1987-03-04 Nec Corporation Demodulation system capable of establishing synchronization in a transient state
EP0262644A2 (en) * 1986-09-30 1988-04-06 Nec Corporation QAM Demodulator with rapid resynchronization function
EP0314196A2 (en) * 1987-10-30 1989-05-03 Nec Corporation Validity decision circuit capable of correctly deciding validity of an error signal in a multilevel quadrature amplitude demodulator
EP0524559A2 (en) * 1991-07-26 1993-01-27 General Instrument Corporation Of Delaware Carrier phase recovery for an adaptive equalizer

Also Published As

Publication number Publication date
GB9812788D0 (en) 1998-08-12
GB2323505A (en) 1998-09-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010314