CA2296209A1 - Method and apparatus for dynamically generating multiple level decision thresholds of an m-ary coded signal - Google Patents

Method and apparatus for dynamically generating multiple level decision thresholds of an m-ary coded signal Download PDF

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Publication number
CA2296209A1
CA2296209A1 CA 2296209 CA2296209A CA2296209A1 CA 2296209 A1 CA2296209 A1 CA 2296209A1 CA 2296209 CA2296209 CA 2296209 CA 2296209 A CA2296209 A CA 2296209A CA 2296209 A1 CA2296209 A1 CA 2296209A1
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Canada
Prior art keywords
ary
signal
generating multiple
multiple level
dynamically generating
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Granted
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CA 2296209
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French (fr)
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CA2296209C (en
Inventor
Daniel G. Payer
Neil Birkett
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Skyworks Solutions Inc
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Philsar Semiconductor Inc
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Publication date
Application filed by Philsar Semiconductor Inc filed Critical Philsar Semiconductor Inc
Priority to CA 2296209 priority Critical patent/CA2296209C/en
Publication of CA2296209A1 publication Critical patent/CA2296209A1/en
Application granted granted Critical
Publication of CA2296209C publication Critical patent/CA2296209C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
    • H04L25/062—Setting decision thresholds using feedforward techniques only
    • 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
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
    • H04L25/066—Multilevel decisions, not including self-organising maps

Abstract

A method and apparatus for dynamically generating multiple level decision thresholds of an M-ary demodulated signal for decoding the signal. The threshold values are obtained by obtaining the maximum and minimum peak values of the demodulated M-ary signal, averaging these peak values and subsequently processing these averaged values to establish the threshold for the particular M-ary signal. Infinite impulse response filters may be advantageously used in the averaging process and these filters may be preloaded with maximum and minimum peak values such that decision threshold levels may be generated immediately after receiving the M-ary demodulated signal.
CA 2296209 2000-01-17 2000-01-17 Method and apparatus for dynamically generating multiple level decision thresholds of an m-ary coded signal Expired - Fee Related CA2296209C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2296209 CA2296209C (en) 2000-01-17 2000-01-17 Method and apparatus for dynamically generating multiple level decision thresholds of an m-ary coded signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2296209 CA2296209C (en) 2000-01-17 2000-01-17 Method and apparatus for dynamically generating multiple level decision thresholds of an m-ary coded signal

Publications (2)

Publication Number Publication Date
CA2296209A1 true CA2296209A1 (en) 2001-07-17
CA2296209C CA2296209C (en) 2003-04-01

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Family Applications (1)

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CA 2296209 Expired - Fee Related CA2296209C (en) 2000-01-17 2000-01-17 Method and apparatus for dynamically generating multiple level decision thresholds of an m-ary coded signal

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CA (1) CA2296209C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2624511A1 (en) * 2012-01-31 2013-08-07 Altera Corporation Multi-level amplitude signaling receiver
GB2518924A (en) * 2013-10-02 2015-04-08 Silicon Lab Inc Receiver with frequency deviation detection capability and method therefor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2624511A1 (en) * 2012-01-31 2013-08-07 Altera Corporation Multi-level amplitude signaling receiver
US8750406B2 (en) 2012-01-31 2014-06-10 Altera Corporation Multi-level amplitude signaling receiver
GB2518924A (en) * 2013-10-02 2015-04-08 Silicon Lab Inc Receiver with frequency deviation detection capability and method therefor
US9736709B2 (en) 2013-10-02 2017-08-15 Silicon Laboratories Inc. Receiver with frequency deviation detection capability and method therefor
GB2518924B (en) * 2013-10-02 2021-05-12 Silicon Lab Inc Receiver with frequency deviation detection capability and method therefor

Also Published As

Publication number Publication date
CA2296209C (en) 2003-04-01

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