Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Individual video storing device and its image playing method

A technology of video storage and storage device, which is applied in the field of personal video storage device and its image playback, can solve the problems of inability to special playback, long decoding time, etc., and achieve the effect of special playback

Inactive Publication Date: 2007-03-07
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, when playing low-speed special playback, only the same positioning frame as ordinary I frame or P frame is used. If B frame is used, it takes a long decoding time to play high-speed special playback.
[0012] Similarly, if special playback is performed only by anchor frames, if only the anchor frames are decoded at the requested double speed, the decoding time will be shortened, but correct special playback cannot be performed.

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
  • Individual video storing device and its image playing method
  • Individual video storing device and its image playing method
  • Individual video storing device and its image playing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The specific embodiments of the personal video storage device and its image playing method of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] In order to achieve high-definition picture quality, the digital program signal compresses the image into MPEG (Moving Picture Experts Group). In MPEG, not all frames are compressed, but the similar points between adjacent frames are used for operation compensation. , and predict and correct for it.

[0037] In an MPEG stream, a frame that can be restored using only its own information should be inserted as a rule, and such a frame is compressed into a still image.

[0038] A frame compressed into a still image is an I frame, a frame only predicted is a P frame, and a frame to be corrected is a B frame.

[0039] The above-mentioned I frame (Intra-coded frame) can appear anywhere in the data stream, and is used for accessing arbitrary data, and can be compressed in real...

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

This invention relates to one personal visual memory device and image play method, which comprises the following parts: program receive device to receive program flow; hardware to store signal flow as MPEG flow I, P and B; frame process device to receive I, P frames; MPEG decoder for B frame and I frame.

Description

technical field [0001] The present invention relates to a personal video storage device and an image playback method using it, which can easily perform trick play of image streams in a personal video storage device (Personal Video Recorder, hereinafter referred to as PVR). Background technique [0002] Recently, more complex and diverse products have gradually appeared in terrestrial wave receiving devices according to the trend of large supply and advanced. Among them, the recently launched personal video recorder (PVR, PersonalVideo Recorder). [0003] PVR is a personal digital video recorder that records information on a hard disk and plays it back. Unlike a VCR that records image signals on a magnetic tape, it is a new concept digital video recorder that records information on a hard disk and plays it back. It is a next-generation video recorder that can record program signals for a certain period of time depending on the capacity without a VCR through the hard disk driv...

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
IPC IPC(8): H04N5/92
Inventor 申盛旭
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com