US 8208569

Here's a concise summary of US patent 8208569, based on the provided authoritative patent text:

US Patent 8208569: Method and apparatus for multicarrier communication

• Title: Method and apparatus for multicarrier communication
• Current Assignee: Panasonic Holdings Corp, Optis Wireless Technology LLC
• Inventors: Kenichi Miyoshi, Jun Cheng
• Filing Date: 2010-10-08
• Issue Date (Publication Date): 2012-06-26
• Abstract: A multicarrier communication method and apparatus that adjusts the arrangement of code blocks according to the actual reception state of a multicarrier signal. This adjustment is made when arranging code blocks, generated through error correcting coding processing, in both the time and frequency axis directions within a multicarrier signal frame, aiming to improve the error correction rate.

Plain-Language Overview of Independent Claims:

• Claim 1 (Transmission apparatus): This claim describes a transmission apparatus that encodes two sets of data (first and second data). It then maps the encoded first data to symbols in a "first part" of a time-frequency domain, specifically arranging them in increasing order by frequency. The encoded second data is mapped to "groups of symbols" in a "second part" of the domain, where each group is aligned in increasing order by time, and individual symbols within each group are aligned by frequency.
• Claim 11 (Reception apparatus): This claim describes a reception apparatus designed to receive data transmitted by the apparatus of Claim 1. It receives the encoded first and second data, which are mapped according to the same time-frequency arrangement as in Claim 1 (first data increasing by frequency, second data in time-aligned groups with symbols aligned by frequency). The apparatus then decodes this received data.
• Claim 21 (Transmission method): This claim outlines a transmission method that mirrors the functions of the apparatus in Claim 1. It involves encoding first and second data, and then mapping them to symbols in a time-frequency domain. The mapping follows the pattern described in Claim 1: first data mapped in increasing frequency order in a first part, and second data mapped to time-aligned groups of frequency-aligned symbols in a second part.
• Claim 31 (Reception method): This claim describes a reception method that mirrors the functions of the apparatus in Claim 11. It involves receiving encoded first and second data mapped to a time-frequency domain as described in Claim 1, and subsequently decoding this data.
• Claim 41 (Transmission apparatus): This claim describes a transmission apparatus that encodes first and second data and maps them to symbols in distinct first and second parts of a time-frequency domain. The mapping involves placing data along the frequency indices in an increasing order. If the number of symbols mapped along the frequency index exceeds a predetermined number, the next part of the data is mapped to symbols where the time index has increased by one. A key feature is that the predetermined number of symbols for the first data and the second data is different.
• Claim 43 (Reception apparatus): This claim describes a reception apparatus configured to receive data transmitted by the apparatus of Claim 41. It receives encoded first and second data, which are mapped according to the rules of Claim 41 (increasing frequency mapping, with time index incrementing after a predetermined number of frequency symbols, and the predetermined number being different for the two data sets). The apparatus then decodes this received data.

CAFC 2026 Dockets:

A review of the provided "Scheduled Cases – May 2026" from the U.S. Court of Appeals for the Federal Circuit did not show any cases explicitly listing US Patent 8208569 in their dockets for May 2026. Therefore, based solely on this provided information, there is no active litigation for US8208569 scheduled at the CAFC in May 2026. However, the Google Patents information indicates that the patent family has litigation and lists several past proceedings, including IPR cases and US District Court cases, and CAFC cases (22-1859, 22-1858). Since the patent is currently marked as "Expired - Lifetime", any new litigation would likely be related to past infringement or appeals of prior decisions.