Streamline your patent due diligence with deep analytics for patents, inventors, and attorneys

Compare patents by technology sector

Deep Analytics

Quickly evaluate patents of interest

► Want to see more? Join for free!

PatentQuant Patent Profile
Generated January 23, 2018

Interleaver for turbo decoder

Patent Number: 6,845,482

Patent Information

Techniques to efficiently generate memory addresses for a Turbo code interleaver using a number of look-up tables. An interleaver includes a storage unit, sets of tables, and an address generator. The storage unit stores K elements for a data packet at locations representative of an R×C array, with the elements being stored in a first (e.g., linear) order and provided in a second (e.g., interleaved) order. A first set of table(s) stores sequences (e.g., inter-row permutation sequences PA, PB, PC, and PD) used to perform row permutation of the array to map from the first order to the second order. A second set of table(s) stores sequences (e.g., intra-row base sequences and prime number sequences) used to perform column permutation. The address generator receives a first address for the first order and generates a corresponding second address for the second order based on sequences stored in the tables.
Patent Number: 6,845,482
Issue Date: 2005-01-18

Primary Category

Biographical Information

Executive Summary


This patent was granted in ► Log In, which is ► Log In speed.

It has ► Log In claims, which is ► Log In than average for this category.

Its proximity to basic research is ► Log In than others in this category, and it displays ► Log In technology cycle time.

This patent received ► Log In citations from other patents, and references ► Log In other patents, as compared to other patents in this category.

Grant Time

► Log In


► Log In

► Want to see more? Join for free!

PatentStat Scores in Not categorized
These scores show the percentile ranks for each metric.
For example, a score of 90 means that 90% of similar patents had lower scores.

Patent Grant Time

This patent had ► Log In grant time compared to others in this category.

Patent grant time can be influenced by many factors. Activities within the USPTO that are beyond the control of patent attornies can influence grant time, but short grant times can also indicate well-written patents and dedicated efforts to respond rapidly to USPTO office actions with strong arguments. Shorter grant times are preferable, and the scores for this section are inverse measures — higher scores are better.

Patent Claims

This patent has ► Log In claims compared to others in this category.

The number of claims in a patent is correlated with its strength. Because greater claim counts increase the cost of a patent, more claims can indicate the importance an applicant assigns to a patent. Importantly, some may elect to file claims across multiple patents. A higher score in this metric indicates more claims, relative to others in this category.

Citations From Other Patents

This patent has received ► Log In citations from other patents, than others in this category.

Citations from other patents are an important measure of the significance of a patent. More citations indicate that other technologies build on a patent. Higher scores in this metric are better, and indicate more citations from other patents.

Citations to Other Patents

This patent referenced ► Log In citations to other patents, than others in this category.

A lower number of citations to other patents can be a sign of diminished patent strength. More citations indicate dependence on more other technologies. Higher scores in this category are better, and indicate fewer citations to other patents.

Research and Innovation Indicators
These are percentile ranks — they indicate the percentage of peers with lower scores.

Proximity to Basic Research

► Log In


Proximity to Basic Research

This patent has ► Log In proximity to basic research compared to others in this category.

Proximity to basic research is measured by comparing the number of citations to non-patent literature among a cohort of patents. Because most non-patent citations are primary research papers, a higher count indicates greater proximity to basic research.

► Want to see more? Join for free!


Patents that cite this patent

Patent Title
9,124,403 Puncturing scheme based decoder optimizations
9,065,486 Detection, avoidance and/or correction of problematic puncturing patterns in parity bit streams used when implementing turbo codes
9,065,485 Method and apparatus for interleaving using stored initial value
8,788,920 Detection, avoidance and/or correction of problematic puncturing patterns in parity bit streams used when implementing turbo codes
8,769,371 Inter-sequence permutation turbo code system and operation methods thereof
8,621,322 Data interleaver
8,359,520 Detection, avoidance and/or correction of problematic puncturing patterns in parity bit streams used when implementing turbo codes
8,332,701 Address generation apparatus and method for quadratic permutation polynomial interleaver de-interleaver
8,316,285 Pipeline architecture for maximum a posteriori (MAP) decoders
8,291,291 Data resequencing
8,156,390 Pruned bit-reversal interleaver
8,156,389 Pruned bit-reversal interleaver
8,020,064 Decoding apparatus and method
8,010,473 Prime indexing and/or other related operations
7,908,545 Pipeline architecture for maximum a posteriori (MAP) decoders
7,856,579 Network for permutation or de-permutation utilized by channel coding algorithm
7,839,310 Extended turbo interleavers for parallel turbo decoding
7,797,615 Utilizing variable-length inputs in an inter-sequence permutation turbo code system
7,788,560 Interleaver with linear feedback shift register
7,711,666 Reduction of memory usage for prime number storage by using a table of differences between a closed form numerical function and prime numbers which bounds a prime numeral between two index values
7,698,620 Interleave parameter processing method
7,600,164 Interleaving/de-interleaving using compressed bit-mapping sequences
7,543,197 Pruned bit-reversal interleaver
7,502,982 Iterative detector with ECC in channel domain
7,437,650 Pre-emptive interleaver address generator for turbo decoders
7,395,461 Low complexity pseudo-random interleaver
7,386,766 Address generation apparatus for turbo interleaver and deinterleaver in W-CDMA systems
7,360,147 Second stage SOVA detector
7,343,531 Method for interleaving data frame and circuit thereof
7,343,530 Turbo decoder and turbo interleaver
7,219,290 Turbo decoder and turbo decoding method and storage medium where the method is stored
7,100,104 Turbo decoder, turbo encoder and radio base station with turbo decoder and turbo encoder
7,085,969 Encoding and decoding apparatus and method

► Want to see more? Join for free!

Information presented on this site is collected from the USPTO and other sources. Errors may have been introduced in the original assembly or analysis of the data.
No warranties are expressed or implied.The content of this site is not a substitute for skilled legal, financial, or other guidance.
Copyright thinkBiotech LLC. All rights reserved.
Privacy policy.