CA1290052C - Methode et appareil d'identification de programmes - Google Patents

Methode et appareil d'identification de programmes

Info

Publication number: CA1290052C
Authority: CA; Canada
Prior art keywords: signal; predetermined; video; comparing; determining
Prior art date: 1984-04-26
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.): Expired - Lifetime

Application number

CA000615693A

Other languages

English (en)

Inventor

David A. Kiewit

Daozheng Lu

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.)

TNC US Holdings Inc

Original Assignee

AC Nielsen Co

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.)

1984-04-26

Filing date

1990-04-04

Publication date

1991-10-01

1984-04-26 Priority claimed from US06/604,367 external-priority patent/US4697209A/en

1990-04-04 Application filed by AC Nielsen Co filed Critical AC Nielsen Co

1991-10-01 Application granted granted Critical

1991-10-01 Publication of CA1290052C publication Critical patent/CA1290052C/fr

2005-04-25 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

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230000008859 change Effects 0.000 claims description 47
238000012544 monitoring process Methods 0.000 claims description 33
230000006872 improvement Effects 0.000 claims description 22
230000006870 function Effects 0.000 claims description 13
230000000875 corresponding effect Effects 0.000 claims description 12
230000005236 sound signal Effects 0.000 claims description 10
238000005070 sampling Methods 0.000 claims 2
239000000284 extract Substances 0.000 abstract description 6
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238000000605 extraction Methods 0.000 description 19
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238000013500 data storage Methods 0.000 description 6
238000012545 processing Methods 0.000 description 5
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238000010586 diagram Methods 0.000 description 3
230000009471 action Effects 0.000 description 2
230000007246 mechanism Effects 0.000 description 2
229940036310 program Drugs 0.000 description 2
241001249696 Senna alexandrina Species 0.000 description 1
241000950638 Symphysodon discus Species 0.000 description 1
241000270433 Varanidae Species 0.000 description 1
240000004543 Vicia ervilia Species 0.000 description 1
238000005266 casting Methods 0.000 description 1
230000003111 delayed effect Effects 0.000 description 1
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238000009434 installation Methods 0.000 description 1
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Landscapes

Television Signal Processing For Recording (AREA)

CA000615693A 1984-04-26 1990-04-04 Methode et appareil d'identification de programmes Expired - Lifetime CA1290052C (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US06/604,367 US4697209A (en)	1984-04-26	1984-04-26	Methods and apparatus for automatically identifying programs viewed or recorded
US06/604,367		1984-04-26
CA000480035A CA1279124C (fr)	1984-04-26	1985-04-25	Methode et dispositif d'identification de programmes

Related Parent Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000480035A Division CA1279124C (fr)	1984-04-26	1985-04-25	Methode et dispositif d'identification de programmes

Publications (1)

Publication Number	Publication Date
CA1290052C true CA1290052C (fr)	1991-10-01

Family

ID=25670656

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000615693A Expired - Lifetime CA1290052C (fr)	1984-04-26	1990-04-04	Methode et appareil d'identification de programmes

Country Status (1)

Country	Link
CA (1)	CA1290052C (fr)

1990
- 1990-04-04 CA CA000615693A patent/CA1290052C/fr not_active Expired - Lifetime

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Legal Events

Date	Code	Title	Description
2006-10-02	MKLA	Lapsed