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FI952186L - Menetelmä ja piirijärjestely vastaanotetun signaalin käsittelemiseksi - Google Patents

Menetelmä ja piirijärjestely vastaanotetun signaalin käsittelemiseksi Download PDF

Info

Publication number
FI952186L
FI952186L FI952186A FI952186A FI952186L FI 952186 L FI952186 L FI 952186L FI 952186 A FI952186 A FI 952186A FI 952186 A FI952186 A FI 952186A FI 952186 L FI952186 L FI 952186L
Authority
FI
Finland
Prior art keywords
processing
received signal
circuit arrangement
arrangement
circuit
Prior art date
Application number
FI952186A
Other languages
English (en)
Swedish (sv)
Other versions
FI98584B (fi
FI952186A0 (fi
FI98584C (fi
Inventor
Vesa Vaelimaeki
Jukka Henriksson
Timo I Laakso
Original Assignee
Nokia Technology 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 Nokia Technology Gmbh filed Critical Nokia Technology Gmbh
Priority to FI952186A priority Critical patent/FI98584C/fi
Publication of FI952186A0 publication Critical patent/FI952186A0/fi
Priority to EP96106338A priority patent/EP0741472A3/en
Priority to US08/642,339 priority patent/US5812608A/en
Publication of FI952186L publication Critical patent/FI952186L/fi
Publication of FI98584B publication Critical patent/FI98584B/fi
Application granted granted Critical
Publication of FI98584C publication Critical patent/FI98584C/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/028—Polynomial filters
    • 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
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
    • H04L27/2273—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0016—Arrangements for synchronising receiver with transmitter correction of synchronization errors
    • H04L7/002—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation
    • H04L7/0029—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation interpolation of received data signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • 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
    • H04L2027/0028—Correction of carrier offset at passband 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
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
    • H04L7/0062—Detection of the synchronisation error by features other than the received signal transition detection of error based on data decision error, e.g. Mueller type detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • H04L7/027—Speed or phase control by the received code signals, the signals containing no special synchronisation information extracting the synchronising or clock signal from the received signal spectrum, e.g. by using a resonant or bandpass circuit
    • H04L7/0274—Speed or phase control by the received code signals, the signals containing no special synchronisation information extracting the synchronising or clock signal from the received signal spectrum, e.g. by using a resonant or bandpass circuit with Costas loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
FI952186A 1995-05-05 1995-05-05 Menetelmä ja piirijärjestely vastaanotetun signaalin käsittelemiseksi FI98584C (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI952186A FI98584C (fi) 1995-05-05 1995-05-05 Menetelmä ja piirijärjestely vastaanotetun signaalin käsittelemiseksi
EP96106338A EP0741472A3 (en) 1995-05-05 1996-04-23 Method and circuit arrangement for processing variable symbol rates
US08/642,339 US5812608A (en) 1995-05-05 1996-05-03 Method and circuit arrangement for processing received signal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI952186 1995-05-05
FI952186A FI98584C (fi) 1995-05-05 1995-05-05 Menetelmä ja piirijärjestely vastaanotetun signaalin käsittelemiseksi

Publications (4)

Publication Number Publication Date
FI952186A0 FI952186A0 (fi) 1995-05-05
FI952186L true FI952186L (fi) 1996-11-06
FI98584B FI98584B (fi) 1997-03-27
FI98584C FI98584C (fi) 1997-07-10

Family

ID=8543361

Family Applications (1)

Application Number Title Priority Date Filing Date
FI952186A FI98584C (fi) 1995-05-05 1995-05-05 Menetelmä ja piirijärjestely vastaanotetun signaalin käsittelemiseksi

Country Status (3)

Country Link
US (1) US5812608A (fi)
EP (1) EP0741472A3 (fi)
FI (1) FI98584C (fi)

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Also Published As

Publication number Publication date
FI98584B (fi) 1997-03-27
EP0741472A2 (en) 1996-11-06
FI952186A0 (fi) 1995-05-05
FI98584C (fi) 1997-07-10
US5812608A (en) 1998-09-22
EP0741472A3 (en) 2000-06-07

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