FI117493B - Filterhjälpprocessor - Google Patents

Filterhjälpprocessor Download PDF

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Publication number
FI117493B
FI117493B FI981263A FI981263A FI117493B FI 117493 B FI117493 B FI 117493B FI 981263 A FI981263 A FI 981263A FI 981263 A FI981263 A FI 981263A FI 117493 B FI117493 B FI 117493B
Authority
FI
Finland
Prior art keywords
data
filter
complex
sequence
stored
Prior art date
Application number
FI981263A
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English (en)
Finnish (fi)
Other versions
FI981263A0 (sv
FI981263A (sv
Inventor
Thomas Kundmann
Mack Mansouri
Moshe Tarrab
Eran Pisek
Original Assignee
Freescale Semiconductor Inc
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Publication of FI981263A0 publication Critical patent/FI981263A0/sv
Application filed by Freescale Semiconductor Inc filed Critical Freescale Semiconductor Inc
Publication of FI981263A publication Critical patent/FI981263A/sv
Application granted granted Critical
Publication of FI117493B publication Critical patent/FI117493B/sv

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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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/544—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices for evaluating functions by calculation
    • G06F7/5443—Sum of products
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/544—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices for evaluating functions by calculation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/30—Time-delay networks

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Filters And Equalizers (AREA)
  • Complex Calculations (AREA)
  • Advance Control (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Hydrogenated Pyridines (AREA)

Claims (6)

1. En filterhjälpprocessor, som innehäller: ett första minne för att lagra datainformation,-ett andra minne för att lagra koefficienter; 5 kännetecknad av att den vidare omfattar ett styrorgan, varmed en multiplikator / ackumulator styrs för att utföra multiplicerings- / ackumulerings-funktioner under en korrelationsprocess mellan den lagrade datainformation som representerar en komplex 10 datasekvens och de lagrade konstanter som representerar en jamnfördelad sekvens, dar den jämnfördelade sekvensen bestar av alternerande rent reellä / rent imaginära komplexa värden och korrelationens utgäng är decimerad, styrorganet koordinerar vidare sökningen av den lagrade i ί .1 15 datainformationen och de lagrade koefficienterna. • 1 "j • · · . & • · · • · · • ·
2. En filterhjälpprocessor, som innehäller: | • · ··' ··'..· • · ett första minne för att lagra datainformation; • · · ····'. • · · » ett andra minne för att lagra koefficienter; • 1 • · * · 1 * · · · % : **: kännetecknad av att den vidare omfattar • 1 · ^^· • φ · • 1 1 • · · .···. 20 ett styrorgan, varmed en multiplikator / ackumulator • · #·# styrs för att utföra multiplicerings- / ackumulerings- • ♦ funktioner under en korrelationsprocess mellan den • · · • · · 1 lagrade datainformation som representerar en 2X 32 y 117493 översaraplad komplex datasekvens och de lagrade konstanter som representerar en koefficientjämnfördelad sekvens, där den jämnfördelade sekvensen bestär av IX alternerande rent reellä / rent imaginära komplexa värden, styrorganet 5 koordinerar vidare sökningen av den lagrade datainformationen och de lagrade koefficienterna.
3. En filterhjalpprocessor, som innehäller: ett första minne för att lagra datainformation; ett andra minne för att lagra koefficienter; 10 kännetecknad av att den vidare omfattar ett styrorgan, varmed en multiplikator / ackumulator styrs för att utföra multiplicerings- / ackumulerings-funktioner under en anpassad filterprocess (206) , där indatan är komplex, de tili den anpassade filtreringen • * ^ 15 associerade koefficienterna är komplexa och utgängen > • · · ; utgörs av en reell datasekvens, som bestär av t • * · - -i" • · · "> alternerande rent reellä / rent imaginära data, i • · styrorganet koordinerar vidare sökningen av den lagrade • · · * · datainf ormationen och de lagrade koef f icienterna. « : 20
4. Filterhjälpprocessor i enlighet med patentkrav 3, • · * • · · · .···. kännetecknad av att utföringsformen vidare omfattar • · « decimering av den anpassade filtreringens (206) utgäng. t * t · · • t
· • · *;* 5. Filterhjälpprocessor i enlighet med patentkrav 3, ··· ·...· kännetecknad av att filterhjälpprocessorn genererar en • ♦ * ♦ « *··'· • · 33 117493 utgang at en Maximum Likelihood Sequence Estimation -algoritm (MLSE).:
6. Kanalekvalisator i en mottagare lämpad för trädlös datakommunikation, vilken kanalekvalisator omfattar: 5 en filterhjälpprocessor, som omfattar ett första minne för att lagra datainformation och ett andra minne för att lagra koefficienter och ett styrorgan, varmed en multiplikator / ackumulator styrs för att utföra multiplicerings- / ackumulerings-funktioner i en första 10 utföringsform associerad med en korrelation och i en andra utföringsform associerad med en anpassad fiitrering, kannetecknad av att filterhjälpprocessorn vidare omfattar: .. . 15 ett korrelationsblock (203) för att korrelera den lagrade ;; • · ]I datainformation som representerar en komplex datasekvens • I » och de lagrade konstanter som representerar en • · · jämnfördelad sekvens, vilken innehaller alternerande rent f • » reellä / rent imaginära värden; • * · • * • · · ···'·: • · · 20 ett anpassat filtreringsblock (206) för att filtrera : ... , komplexa inmatningar anpassat med hjälp av komplexa • φ · ♦ ·♦ · ,···. koef f icienter och för att generera en reell • · • · · utgängssekvens bestäende av alternerande rent reellä / • * · * · · rent imaginära data; och ; • · * · * · · • ·· 25 ett maximum likelihood sekvensestimeringsblock för att • · :.*·· estimera en signal sänd i det trädlösa 34 117493 datakommunikationssystemet pä basis av den utgäng sorti erhälls fran det anpassade filtreringsblocket. ·· · * · · • · • · • · ♦ „ • · · ·1· • · * · · • · · • · • · • · • · 1 • · 1 * 1 • 1 · * 1 · • 1 · * · • 1 · * · · *·2 3-,. * 1 · • · • · • 1 1 • · · • · φ 1 • 1 · * 1 · • · • · • · · · 1 2 • · * · 3 * ♦ · 1 * «· • ·
FI981263A 1996-10-04 1998-06-03 Filterhjälpprocessor FI117493B (sv)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/725,871 US5905757A (en) 1996-10-04 1996-10-04 Filter co-processor
US72587196 1996-10-04
PCT/US1997/011435 WO1998015056A1 (en) 1996-10-04 1997-07-08 A filter co-processor
US9711435 1997-07-08

Publications (3)

Publication Number Publication Date
FI981263A0 FI981263A0 (sv) 1997-07-08
FI981263A FI981263A (sv) 1998-06-03
FI117493B true FI117493B (sv) 2006-10-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FI981263A FI117493B (sv) 1996-10-04 1998-06-03 Filterhjälpprocessor

Country Status (17)

Country Link
US (1) US5905757A (sv)
JP (1) JP4494531B2 (sv)
KR (1) KR100306014B1 (sv)
CN (1) CN1153422C (sv)
AR (1) AR008437A1 (sv)
AU (1) AU3587597A (sv)
CA (1) CA2238299C (sv)
DE (1) DE19781047B4 (sv)
ES (1) ES2147693B1 (sv)
FI (1) FI117493B (sv)
FR (1) FR2754366B1 (sv)
GB (1) GB2322057B (sv)
IT (1) IT1295391B1 (sv)
RU (1) RU2178949C2 (sv)
SE (1) SE517510C2 (sv)
TW (1) TW340285B (sv)
WO (1) WO1998015056A1 (sv)

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Also Published As

Publication number Publication date
CN1153422C (zh) 2004-06-09
GB9811085D0 (en) 1998-07-22
AU3587597A (en) 1998-04-24
GB2322057A (en) 1998-08-12
JP2000501918A (ja) 2000-02-15
SE9801958L (sv) 1998-08-03
FR2754366B1 (fr) 2003-08-15
DE19781047T1 (de) 1998-12-17
GB2322057B (en) 2001-04-25
FI981263A0 (sv) 1997-07-08
IT1295391B1 (it) 1999-05-12
RU2178949C2 (ru) 2002-01-27
CN1205133A (zh) 1999-01-13
ITRM970553A1 (it) 1999-03-15
FI981263A (sv) 1998-06-03
ES2147693B1 (es) 2001-05-16
AR008437A1 (es) 2000-01-19
US5905757A (en) 1999-05-18
ES2147693A1 (es) 2000-09-16
CA2238299A1 (en) 1998-04-09
WO1998015056A1 (en) 1998-04-09
TW340285B (en) 1998-09-11
FR2754366A1 (fr) 1998-04-10
DE19781047B4 (de) 2005-09-29
KR19990071907A (ko) 1999-09-27
JP4494531B2 (ja) 2010-06-30
SE517510C2 (sv) 2002-06-11
KR100306014B1 (ko) 2001-11-02
CA2238299C (en) 2000-09-26
SE9801958D0 (sv) 1998-06-03

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