CA2244446A1 - Signal processor for reducing undesirable signal content - Google Patents

Signal processor for reducing undesirable signal content

Info

Publication number
CA2244446A1
CA2244446A1 CA 2244446 CA2244446A CA2244446A1 CA 2244446 A1 CA2244446 A1 CA 2244446A1 CA 2244446 CA2244446 CA 2244446 CA 2244446 A CA2244446 A CA 2244446A CA 2244446 A1 CA2244446 A1 CA 2244446A1
Authority
CA
Canada
Prior art keywords
signal
content
undesirable
reducing undesirable
signal processor
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
CA 2244446
Other languages
French (fr)
Other versions
CA2244446C (en
Inventor
Martin Snelgrove
Li Yu
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.)
Skyworks Solutions Inc
Original Assignee
Philsar Electronics 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
Priority claimed from CA002209509A external-priority patent/CA2209509A1/en
Application filed by Philsar Electronics Inc filed Critical Philsar Electronics Inc
Priority to CA 2244446 priority Critical patent/CA2244446C/en
Publication of CA2244446A1 publication Critical patent/CA2244446A1/en
Application granted granted Critical
Publication of CA2244446C publication Critical patent/CA2244446C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/109—Means associated with receiver for limiting or suppressing noise or interference by improving strong signal performance of the receiver when strong unwanted signals are present at the receiver input

Abstract

A signal processor for reducing undesirable signal content reduces the undesirable signal content by exaggerating the undesirable signal content and then using this exaggerated undesirable signal and adaptive filter means to estimate the undesirable content in the signal and then substantially removing it from the signal. The signal processor includes a signal mapping means for exaggerating the undesirable signal content; and an adaptive filter means for reducing the undesirable signal content using the exaggerated undesirable signal content.
CA 2244446 1997-08-01 1998-07-31 Signal processor for reducing undesirable signal content Expired - Fee Related CA2244446C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2244446 CA2244446C (en) 1997-08-01 1998-07-31 Signal processor for reducing undesirable signal content

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA002209509A CA2209509A1 (en) 1997-08-01 1997-08-01 Mismatch cancellation for complex bandpass sigma-delta modulators
CA2,209,509 1997-08-01
CA 2244446 CA2244446C (en) 1997-08-01 1998-07-31 Signal processor for reducing undesirable signal content

Publications (2)

Publication Number Publication Date
CA2244446A1 true CA2244446A1 (en) 1999-02-01
CA2244446C CA2244446C (en) 2004-05-25

Family

ID=29421085

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2244446 Expired - Fee Related CA2244446C (en) 1997-08-01 1998-07-31 Signal processor for reducing undesirable signal content

Country Status (1)

Country Link
CA (1) CA2244446C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1367722A3 (en) * 2002-05-30 2004-09-29 Texas Instruments Incorporated Apparatus for generating at least one digital output signal representative of an analog signal
EP3512115A1 (en) * 2018-01-10 2019-07-17 Nxp B.V. Wireless communication unit, modulation circuit and method for frequency-dependent adjustment thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1367722A3 (en) * 2002-05-30 2004-09-29 Texas Instruments Incorporated Apparatus for generating at least one digital output signal representative of an analog signal
EP3512115A1 (en) * 2018-01-10 2019-07-17 Nxp B.V. Wireless communication unit, modulation circuit and method for frequency-dependent adjustment thereof
US10505594B2 (en) 2018-01-10 2019-12-10 Nxp B.V. Wireless communication unit, modulation circuit and method for frequency-dependent adjustment thereof

Also Published As

Publication number Publication date
CA2244446C (en) 2004-05-25

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed