Methods of receiving and sending digital television services

A TV service, digital reception technology, applied in the field of service change), can solve the problem of time-consuming

Active Publication Date: 2009-06-24
INTERDIGITAL CE PATENT HLDG
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Switching from one digital TV service to another in a receiver can take time (typically tenths to seconds) according to the state of the art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Methods of receiving and sending digital television services
  • Methods of receiving and sending digital television services
  • Methods of receiving and sending digital television services

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In general, the invention makes it possible to use knowledge of service change times to avoid displaying a black screen. Thus, according to various embodiments, this time may be used to display still images, information in the form of text, or other moving images (what is displayed may depend on service discontinuations and / or new services), an estimate of this time being integrated with the service list send together. This can also be done by implementing a fade-out (or "doing a fade-out") associated with one of the last images (and preferably the last image) where the service stopped, and whose duration depends on the estimated load time of the new service Used for soft changes to programs.

[0024] Information about digital television services is sent in a specific structure. Therefore, in a one-way transmission (“Broadcast” in English) (for example, in DVB-T (or “Digital Video Broadcasting-Terrestrial”) or DVB-S (or DVB Satellite) or DVB-H (or “ DVB-Handheld")), ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a method of receiving digital television services, which comprises a step (61) of receiving at least one information representative of the lag in the display of a new service, the information being inserted into control data which comprise at least one list of services. Thus, the invention allows the receiver to perform an action during the loading of a service as a function of this time. The invention also relates to the corresponding sending method.

Description

technical field [0001] The invention relates to the transmission of digital television services over two-way transmission or communication networks. [0002] More precisely, the invention belongs to the field of service change (or, zapping when watching a television program). Background technique [0003] According to the state of the art, switching from one digital television service to another in a receiver may take time (typically tenths to several seconds). Specifically, the decoder must receive pictures that it can decode (typically, intra or I pictures according to MPEG technology, inserted into P (or "predicted" or "predicted") pictures and B (or bidirectional) pictures in flow). In order to reduce the necessary bandwidth, the number of I pictures is small. Furthermore, when implementing IP (or "Internet Protocol") networks, buffer memories are used to compensate for network jitter. Therefore, a longer or shorter black screen is displayed during a service change. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04N5/445H04N5/00H04N5/44
CPCH04N21/458H04N5/50H04N5/4401H04N21/6547H04N21/6543H04N21/654H04N21/4383H04N21/44016H04N21/6332H04N21/426H04N21/235H04N19/46
Inventor 让-巴普蒂斯特·亨利雷米·霍戴尔威廉·卢伯斯
Owner INTERDIGITAL CE PATENT HLDG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap