Check patentability & draft patents in minutes with Patsnap Eureka AI!

Decoding device and method

The technology of a decoding device and a decoding method, which is applied in the field of decoding devices, can solve problems such as image confusion

Inactive Publication Date: 2004-04-21
PANASONIC CORP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0031] That is, since a completely different image from the original is decoded, severe image confusion occurs

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
  • Decoding device and method
  • Decoding device and method
  • Decoding device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] FIG. 1 is a diagram for explaining a decoding device according to Embodiment 1 of the present invention, and shows the configuration of the decoding device.

[0056] The above-mentioned decoding device 100 includes: a decoding part 101 for compounding code strings of an input elementary stream; a code string interpretation position determination means 103 for determining a predetermined number of bits back from the current code string interpretation position; and a code string interpretation position determination means The output of 103 sets the code string interpretation position setting means 102 of the code string interpretation position of the elementary stream.

[0057] The above-mentioned decoding device 101 includes: a bit buffer 10 for storing an input bit stream, a variable-length decoder 11 for performing variable-length decoding of a code string output from the bit buffer, and a variable-length decoder for performing variable-length decoding processing. Deco...

Embodiment 2

[0069] Fig. 3 is a diagram for explaining a decoding device according to Embodiment 2 of the present invention, and shows the configuration of the decoding device 100a.

[0070] The above-mentioned decoding device 100a includes a decoder 12a, which is the same as the decoding device 100 of the first embodiment except that the decoder 12a has an error concealment function after receiving an error detection signal to repair the error occurrence part of the currently performed decoding process. same.

[0071] The operation is described below.

[0072] FIG. 4 shows a flowchart of the operation of the decoding device 100a according to the second embodiment of the present invention. In the operation of the decoding device 100a, if an error occurs in the elementary stream supplied during trick playback, it goes back N bits from the current position where the decoding process is performed to search for the start code above the picture layer (from step S1 to step S1). S4), which is t...

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

A decoding apparatus comprises: decoding means which receives a first code sequence of a hierarchical structure as an input, decodes a code sequence of a selected first layer and higher layers in the first code sequence, outputs a detection signal when an error is detected while the code sequence is being decoded, and detects a second code sequence indicating the start of the first layer and higher layers in a set code sequence parsing position of the first sequence; and means for setting a code sequence parsing position which receives the detection signal and sets the parsing position of the code sequence in such a way that code sequence parsing performed by the decoding means is returned from a point at which code sequence parsing is being performed to a point at which code sequence parsing has been performed in the first code sequence.

Description

technical field [0001] The present invention relates to a decoding device and a decoding method used when reproducing moving pictures stored in a storage device. Background technique [0002] In recent years, with the advancement of the information society, there has been an increasing demand for transmission of moving images to others that transcends barriers of time and distance. Corresponding to this, it becomes possible to record and reproduce moving images with a recording device and perform long-distance transmission using a communication network. Digital technology is used for the transmission and storage of this information, and coding methods using digital technology are used not only in the communication field but also in the broadcast field. [0003] In recording moving pictures and audio signals by digital signals, a large-capacity digital recording medium is generally used. As such digital recording media, widely used are VCDs that record digital moving images...

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): H04N19/89
CPCH04N19/00781H04N19/00121H04N19/00951H04N7/64H04N19/00933H04N7/26106H04N7/50H04N7/5013H04N19/13H04N19/61H04N19/89H04N19/91
Inventor 安田诚中谷信太郎
Owner PANASONIC CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com