Automatic commercial message recognition and monitoring device
US5162905A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1991 |
| Grant date | Nov 10, 1992 |
| Priority date | — |
| Expiry date | Mar 29, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H60/59
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An automatic commercial message (CM) recognition device has an audio data preparing portion (6) for producing audio data from an audio signal contained in a TV program received, a silence data preparing portion (7) for producing silence data from the audio signal contained in the TV program received, an image change detector portion (8) for detecting a change of image on an image screen from a video signal of the TV program received, a control portion (12) for determining a start or an end of a CM when an output of the silence data detecting portion indicates a silence state and the image change detector portion detects a change of an image, and a CM data referencing portion (14) for deriving an audio data from the start or end of the CM and comparing it with a preliminarily stored audio data of the CM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.