GB201522313D0 - Dc-free or nyquist-free block-error correcting line encoders based on n-ask modulation - Google Patents

Dc-free or nyquist-free block-error correcting line encoders based on n-ask modulation

Info

Publication number
GB201522313D0
GB201522313D0 GBGB1522313.4A GB201522313A GB201522313D0 GB 201522313 D0 GB201522313 D0 GB 201522313D0 GB 201522313 A GB201522313 A GB 201522313A GB 201522313 D0 GB201522313 D0 GB 201522313D0
Authority
GB
United Kingdom
Prior art keywords
free
nyquist
error correcting
ask modulation
encoders based
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.)
Granted
Application number
GBGB1522313.4A
Other versions
GB2545466B (en
GB2545466A (en
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to GB1522313.4A priority Critical patent/GB2545466B/en
Publication of GB201522313D0 publication Critical patent/GB201522313D0/en
Publication of GB2545466A publication Critical patent/GB2545466A/en
Application granted granted Critical
Publication of GB2545466B publication Critical patent/GB2545466B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0264—Arrangements for coupling to transmission lines
    • H04L25/028—Arrangements specific to the transmitter end
    • H04L25/0284—Arrangements to ensure DC-balance
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/04—Conversion to or from representation by pulses the pulses having two levels
    • H03M5/14—Code representation, e.g. transition, for a given bit cell depending on the information in one or more adjacent bit cells, e.g. delay modulation code, double density code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H04L1/006—Trellis-coded modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4906—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/02—Conversion to or from weighted codes, i.e. the weight given to a digit depending on the position of the digit within the block or code word
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
GB1522313.4A 2015-12-17 2015-12-17 Dc-free or nyquist-free block-error correcting line encoders based on n-ask modulation Expired - Fee Related GB2545466B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1522313.4A GB2545466B (en) 2015-12-17 2015-12-17 Dc-free or nyquist-free block-error correcting line encoders based on n-ask modulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1522313.4A GB2545466B (en) 2015-12-17 2015-12-17 Dc-free or nyquist-free block-error correcting line encoders based on n-ask modulation

Publications (3)

Publication Number Publication Date
GB201522313D0 true GB201522313D0 (en) 2016-02-03
GB2545466A GB2545466A (en) 2017-06-21
GB2545466B GB2545466B (en) 2019-08-07

Family

ID=55311163

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1522313.4A Expired - Fee Related GB2545466B (en) 2015-12-17 2015-12-17 Dc-free or nyquist-free block-error correcting line encoders based on n-ask modulation

Country Status (1)

Country Link
GB (1) GB2545466B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109827926A (en) * 2018-12-29 2019-05-31 中国科学院紫金山天文台 A kind of terahertz wave spectrometer control system and observation method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2523566B (en) * 2014-02-27 2017-10-04 Canon Kk Method of shaping the spectrum of an input bitstream

Also Published As

Publication number Publication date
GB2545466B (en) 2019-08-07
GB2545466A (en) 2017-06-21

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Legal Events

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

Effective date: 20191217