Method and device for detecting an event in a program of a video and/or audio signal and for providing the program to a display upon detection of the event

• US 7,124,365 B2
• Filed: 06/15/2001
• Issued: 10/17/2006
• Est. Priority Date: 11/13/1998
• Status: Expired due to Fees

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Cavallerano, Alan P., Shen, Richard C., Ciacci, Claudio
• Primary Examiner(s): Sajous, Wesner
• Application Number:
  US09/882,082
• Publication Number:
  US 20020057372A1
• Time in Patent Office: 1,950 Days
• Field of Search: 348/553, 348563-569, 348/423.1, 348/570, 348/906, 348/468, 348/462, 348/461, 348/84, 348/125, 348/700, 348/460, 348/552, 348/731, 348/38, 348/58, 348/22, 348/19, 348/387, 348/385, 348/390, 382/141, 382/103, 345/619, 345629-630, 345/716, 345/723, 345/632, 345/633, 704/9, 704/13, 704/24, 704/135, 704/257, 704/275, 704/3, 704/4, 704/7, 704/200, 704/235, 704/246, 704/260, 704/278, 704/502, 725/55, 725/22, 725/38, 725/40, 725/46, 725/50, 725/61, 725/53, 725 86- 87, 725/100, 725/102, 715714-716, 715632-633
• US Class Current: 715/716
• CPC Class Codes: G11B 27/28 by using information signals recorded by the same method as the main recording G11B27/22 takes precedence
• CPC Class Codes: H04N 21/23412 for generating or manipulating the scene composition of objects, e.g. MPEG-4 objects
• CPC Class Codes: H04N 21/4143 embedded in a Personal Computer [PC]
• CPC Class Codes: H04N 21/4263 involving specific tuning arrangements, e.g. two tuners
• CPC Class Codes: H04N 21/4316 for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
• CPC Class Codes: H04N 21/4394 involving operations for analysing the audio stream, e.g. detecting features or characteristics in audio streams arrangements characterised by components specially adapted for monitoring, identification or recognition of audio in broadcast systems H04H60/58
• CPC Class Codes: H04N 21/44008 involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream arrangements characterised by components specially adapted for monitoring, identification or recognition of video in broadcast systems H04H60/59
• CPC Class Codes: H04N 21/44012 involving rendering scenes according to scene graphs, e.g. MPEG-4 scene graphs
• CPC Class Codes: H04N 21/4532 involving end-user characteristics, e.g. viewer profile, preferences monitoring of user activities for profile generation for accessing a video database G06F16/739; user profiles in network data switching protocols H04L67/306; processing of user preferences or user profiles in wireless networks H04W8/18
• CPC Class Codes: H04N 21/454 Content or additional data filtering, e.g. blocking advertisements
• CPC Class Codes: H04N 21/4755 for defining user preferences, e.g. favourite actors or genre retrieval personalisation and generation of user profiles for the retrieval of video data G06F16/739; user profiles in network data switching protocols H04L67/306
• CPC Class Codes: H04N 5/44 Receiver circuitry for the reception of television signals according to analogue transmission standards H04N5/14 takes precedence
• CPC Class Codes: H04N 5/45 Picture in picture , e.g. displaying simultaneously another television channel in a region of the screen
• CPC Class Codes: H04N 5/60 for the sound signals

Abstract

A device for automatically providing program information to a television display upon detection of an event in the program. The event being a user definable event. The device also provides automatic PIP display of the program having the event and a delay of the event so that it is not missed by the viewer.

Claims

1. A device for receiving a video and/or audio signal comprising a plurality of different programs, comprising:

an input that receives the video and/or audio signal;

a user interface that receives a user input identifying an event to be detected;

a shape detector that analyzes an MPEG-4 video of at least one program to detect the identified event in the program;

a selector for automatically, upon detection of the identified event, providing to a display the program containing the event; and

a memory for storing a particular length of audio and/or video information such that the program containing the identified event is delayed when supplied to the display upon detection of the event.

2. The device as claimed in claim 1, further including a picture-in-picture (PIP) device which automatically displays in a PIP the program having the detected event.

3. The device as claimed in claim 1, wherein the detector is a text recognition device which scans the video information for text, and wherein the user interface includes a device which enables the user to enter as the event to be detected specific text.

4. A method of receiving a video and/or audio signal comprising a plurality of different programs, comprising the steps of:

receiving the video and/or audio signal;

receiving a user input identifying a shape to be detected;

analyzing the video signal of at least one program by performing shape recognition to detect the identified shape in the program;

providing to a display the program containing the identified shape upon detection of the shape; and

correcting the user input to a particular DCT coefficient pattern and wherein the step of receiving the video receives MPEG-4 video in the form of DCT coefficient patterns and the step of analyzing analyzes the DCT coefficient patterns of the MPEG-4 video to detect the particular DCT coefficient pattern.

5. The method as claimed in claim 4, wherein the step of providing provides to a picture-in-picture (PIP) display the program containing the event.

6. The method as claimed in claim 4, wherein the step of analyzing performs text recognition and scans the video signal for text, and wherein the step of receiving a user input receives text to be detected.

7. Computer-executable process steps to detect an event in a video and/or audio signal comprising a plurality of different programs, the computer-executable process steps being stored on a computer-readable medium and comprising:

a receiving step to receive user input selecting shape;

a shape detecting step to detect in at least one program a shape that has been selected by a user wherein the shape detecting step includes MPEG-4 analysis step for analyzing patterns of DCT coefficients to detect a particular shape in the video stream of the at least one program by detecting a particular DCT coefficient pattern on MPEG-4 video signal and

an outputting step to automatically output to a display upon detection of the event the program containing the selected shape.

8. The computer-executable process steps as claimed in claim 7 wherein the analysis step includes a comparison step for comparing a user selected shape retrieved from a template of shapes defined as patterns of DCT coefficients with the patterns of DCT coefficients received in the MPEG-4 video signal.

9. Computer-executable process steps stored on a computer readable medium, the computer-executable process steps to detect text within a video signal including a plurality of programs, the computer-executable process steps, comprising:

a first receiving step to receive the video signal;

a decoding step to decode the video signal;

a second receiving step to receive an input from a user defining text to be detected in at least one program of the video signal;

a detecting step to detect, using text recognition steps, the user defined text in the at least one program of the video signal;

a providing step to provide a picture-in-picture (PIP) display of the program having the detected text; and

a delay step to delay the program having the detected text so that display of the program captures the text.