Unlock instant, AI-driven research and patent intelligence for your innovation.

Convolution cross and deconvolution cross device and method thereof

A de-interleaving and convolution technology, applied in the direction of error correction/error detection using convolutional codes, error correction/error detection using interleaving technology, and data representation error detection/correction, etc.

Inactive Publication Date: 2007-12-26
PANASONIC CORP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Such a convolution interleave device in FIG. 13 and a convolution deinterleave device in FIG. 14 require a plurality of multi-segment shift registers. As other existing examples to solve this problem, there is a convolution interleave device composed of RAM, so there is a circuit scale Bigger problem

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
  • Convolution cross and deconvolution cross device and method thereof
  • Convolution cross and deconvolution cross device and method thereof
  • Convolution cross and deconvolution cross device and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0111] The convolutional interleave device of the first embodiment can suppress increases in the circuit scale and power consumption of RAM peripheral circuits by concentrating the address counters of the RAM in units of two channels.

[0112] The configuration of the convolutional interleave apparatus according to the first embodiment will be described with reference to FIG. 1. FIG.

[0113] In the convolutional interleave device of the present embodiment 1, 53 is a single-port RAM (the first storage device in the third aspect) that outputs data to the readout device 54, and 46 is the output data 61 of the convolutional interleave device to The register 49, the output signal selector 55 and the input data control device of the shift register 59, the 50 is to output the control signal to the input data control device 46, the upper address generation device 41, the lower address selector 44, and the shift register selector 59 And 60 and the selection signal generator of the RAM...

Embodiment 2

[0146] The convolution deinterleaving apparatus according to the second embodiment can suppress the increase in the circuit scale and power consumption of the peripheral circuit of the RAM by concentrating the address counters of the RAM with 2 channels as a unit.

[0147] The configuration of the convolutional deinterleaving apparatus according to the second embodiment will be described with reference to FIG. 4 .

[0148]In the convolution deinterleaving device of the present embodiment 2, 83 is a single-port RAM (the first storage device of the eleventh aspect) that outputs data to the readout device 84, and 76 is the input data of the convolution deinterleaving device 91 is output to the input data control device of bit coupling device 77, register 791 and shift register selector 89, and 80 is to output the control signal to upper address generation device 71, lower address selector 74, input data control device 76, shift Register selectors 89, 90 and a selection signal gen...

Embodiment 3

[0184] In the convolutional interleave device of the third embodiment, the address counters of the RAM are concentrated in units of 2 channels, thereby suppressing increases in the circuit scale and power consumption of the peripheral circuits of the RAM. In addition, by realizing the delay to be performed only with the RAM, it is possible to configure a device in which memory circuits of different types are not mixed.

[0185] The configuration of the convolutional interleave device according to the third embodiment will be described with reference to FIG. 7. FIG.

[0186] In the convolutional interleaving device of Embodiment 3, 213 is the single-port RAM (storage device of the sixth aspect) that outputs data to the readout device 214, and 206 is outputting the input data 221 of the convolutional interleaving device to the bit-connected The input data control device of device 207 and output signal selector 215, 208 is the register that data is output to bit coupling device 2...

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 present invention provides a convolutional interleave device for improving integration degree and reducing power consumption. This device is provided with a RAM area..., 123-(N / 2-1),..., 123-((C-1) / 2-1) for delaying data and shift registers 122-0,..., 122-((C-1) / 2), and for the RAM area, an address counter is made common in two channels. Input data are selected by a selector 120, the data are successively inputted to the RAM area..., 123-(N / 2-1),..., 123-((C-1) / 2-1) and the shift registers 122-0,..., 122-((C-1) / 2) and the data are taken out in synchronism with that by the selector 121.

Description

technical field [0001] The present invention relates to a convolution interleave device, a convolution deinterleave device, a convolution interleave method and a convolution Deinterleaving method. technical background [0002] The convolutional interleave method is effective as a measure against burst errors. [0003] When satellite broadcasting is described as an example, radio waves from a TV station on the ground are transmitted to a satellite, relayed by the satellite, and received by a satellite broadcast receiver installed at home. [0004] Among these, radio waves transmitted from television stations to households via satellites are disturbed when there is thunderstorm etc. in the transmission line, and errors occur in data during the period of the disturbance. Call it a burst error. [0005] In digital transmission, information for error correction is added to the original data in advance. Therefore, if there is a bit error within a certain range in each segment, ...

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 Patents(China)
IPC IPC(8): H03M13/00H03M13/27H03M13/23
CPCH03M13/2764H03M13/6505H03M13/2732H03M13/6502H03M13/27
Inventor 古谷专一中仓康浩
Owner PANASONIC CORP