CA2301186A1 - Traffic verification system - Google Patents

Traffic verification system Download PDF

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Publication number
CA2301186A1
CA2301186A1 CA002301186A CA2301186A CA2301186A1 CA 2301186 A1 CA2301186 A1 CA 2301186A1 CA 002301186 A CA002301186 A CA 002301186A CA 2301186 A CA2301186 A CA 2301186A CA 2301186 A1 CA2301186 A1 CA 2301186A1
Authority
CA
Canada
Prior art keywords
signal
audio signal
audio
data signal
data
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
CA002301186A
Other languages
French (fr)
Other versions
CA2301186C (en
Inventor
Jeffrey L. Pages
Glen F. English
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.)
Innes Corp Pty Ltd
Original Assignee
Innes Corporation Pty. Ltd.
Jeffrey L. Pages
Glen F. English
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 Innes Corporation Pty. Ltd., Jeffrey L. Pages, Glen F. English filed Critical Innes Corporation Pty. Ltd.
Publication of CA2301186A1 publication Critical patent/CA2301186A1/en
Application granted granted Critical
Publication of CA2301186C publication Critical patent/CA2301186C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • H04H20/30—Arrangements for simultaneous broadcast of plural pieces of information by a single channel
    • H04H20/31—Arrangements for simultaneous broadcast of plural pieces of information by a single channel using in-band signals, e.g. subsonic or cue signal

Abstract

Disclosed is a method and apparatus for inserting a data signal into an audio signal to provide a tagged signal. The method includes removing a band of frequencies centred at a predetermined notch frequency from the audio signal, spectrally shaping the data signal so that it takes on the precise shape and magnitude of the envelope of the audio signal at the removed band, and inserting the shaped data signal into the removed band of the audio signal. The method may be used to identify an audio segment or it may be used to encode the audio signal with other desired data. The method of the invention provides for the data signal to be virtually inaudible to the listener of the audio segment yet robust enough to survive severe audio signal processing.
CA002301186A 1998-06-04 1999-06-01 Traffic verification system Expired - Fee Related CA2301186C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPP3924A AUPP392498A0 (en) 1998-06-04 1998-06-04 Traffic verification system
AUPP3924 1998-06-04
PCT/AU1999/000439 WO1999063688A1 (en) 1998-06-04 1999-06-01 Traffic verification system

Publications (2)

Publication Number Publication Date
CA2301186A1 true CA2301186A1 (en) 1999-12-09
CA2301186C CA2301186C (en) 2009-09-22

Family

ID=3808169

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002301186A Expired - Fee Related CA2301186C (en) 1998-06-04 1999-06-01 Traffic verification system

Country Status (8)

Country Link
US (1) US6757300B1 (en)
AR (1) AR019149A1 (en)
AU (1) AUPP392498A0 (en)
BR (1) BR9906512A (en)
CA (1) CA2301186C (en)
GB (1) GB2342265B (en)
NZ (1) NZ503064A (en)
WO (1) WO1999063688A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6871180B1 (en) * 1999-05-25 2005-03-22 Arbitron Inc. Decoding of information in audio signals
AU2002220858A1 (en) * 2000-11-30 2002-06-11 Scientific Generics Limited Communication system
US7356051B2 (en) * 2001-01-24 2008-04-08 Broadcom Corporation Digital visual interface with audio and auxiliary data cross reference to related applications
US7212248B2 (en) * 2002-09-09 2007-05-01 The Directv Group, Inc. Method and apparatus for lipsync measurement and correction
ATE400926T1 (en) * 2004-03-29 2008-07-15 Nxp Bv METHOD FOR REDUCING INTERMEDIATE SYMBOL INTERFERENCE, SIGMA-DELTA CONVERTER FOR PERFORMING SUCH METHOD, AND STORAGE MEDIUM FOR TRANSMITTING INFORMATION GENERATED BY SUCH METHOD
JP4398416B2 (en) * 2005-10-07 2010-01-13 株式会社エヌ・ティ・ティ・ドコモ Modulation device, modulation method, demodulation device, and demodulation method
US7948558B2 (en) * 2006-09-29 2011-05-24 The Directv Group, Inc. Audio video timing measurement and synchronization
US8804984B2 (en) 2011-04-18 2014-08-12 Microsoft Corporation Spectral shaping for audio mixing
US8805682B2 (en) * 2011-07-21 2014-08-12 Lee S. Weinblatt Real-time encoding technique
US9065971B2 (en) * 2012-12-19 2015-06-23 Microsoft Technology Licensing, Llc Video and audio tagging for active speaker detection

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004104A (en) 1954-04-29 1961-10-10 Muzak Corp Identification of sound and like signals
US3845391A (en) 1969-07-08 1974-10-29 Audicom Corp Communication including submerged identification signal
US3586781A (en) 1970-05-19 1971-06-22 Technology Uk Telecommunication apparatus
US4395600A (en) * 1980-11-26 1983-07-26 Lundy Rene R Auditory subliminal message system and method
US4703476A (en) 1983-09-16 1987-10-27 Audicom Corporation Encoding of transmitted program material
US5025443A (en) * 1988-02-24 1991-06-18 Integrated Network Corporation Digital data over voice communication
US4931871A (en) 1988-06-14 1990-06-05 Kramer Robert A Method of and system for identification and verification of broadcasted program segments
US5185762A (en) * 1991-05-15 1993-02-09 Scs Mobilecom, Inc. Spread spectrum microwave overlay with notch filter
FR2681997A1 (en) 1991-09-30 1993-04-02 Arbitron Cy METHOD AND DEVICE FOR AUTOMATICALLY IDENTIFYING A PROGRAM COMPRISING A SOUND SIGNAL
US5319735A (en) 1991-12-17 1994-06-07 Bolt Beranek And Newman Inc. Embedded signalling
US5410541A (en) * 1992-05-04 1995-04-25 Ivon International, Inc. System for simultaneous analog and digital communications over an analog channel
US5355161A (en) 1993-07-28 1994-10-11 Concord Media Systems Identification system for broadcast program segments
US5450490A (en) 1994-03-31 1995-09-12 The Arbitron Company Apparatus and methods for including codes in audio signals and decoding
US5774452A (en) 1995-03-14 1998-06-30 Aris Technologies, Inc. Apparatus and method for encoding and decoding information in audio signals
US5822360A (en) 1995-09-06 1998-10-13 Solana Technology Development Corporation Method and apparatus for transporting auxiliary data in audio signals
US5937000A (en) * 1995-09-06 1999-08-10 Solana Technology Development Corporation Method and apparatus for embedding auxiliary data in a primary data signal
US6154484A (en) * 1995-09-06 2000-11-28 Solana Technology Development Corporation Method and apparatus for embedding auxiliary data in a primary data signal using frequency and time domain processing
US5719937A (en) * 1995-12-06 1998-02-17 Solana Technology Develpment Corporation Multi-media copy management system
US5826227A (en) * 1995-12-18 1998-10-20 Lucent Technologies Inc. Hiding a source identifier within a signal
WO1998053565A1 (en) 1997-05-19 1998-11-26 Aris Technologies, Inc. Apparatus and method for embedding and extracting information in analog signals using distributed signal features

Also Published As

Publication number Publication date
CA2301186C (en) 2009-09-22
BR9906512A (en) 2000-07-25
GB0002212D0 (en) 2000-03-22
US6757300B1 (en) 2004-06-29
AUPP392498A0 (en) 1998-07-02
GB2342265A (en) 2000-04-05
AR019149A1 (en) 2001-12-26
GB2342265B (en) 2002-12-31
NZ503064A (en) 2002-11-26
WO1999063688A1 (en) 1999-12-09

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