Prior art — US Patent 8208569

Here is an analysis of the most relevant prior art for US patent 8208569, based on the citations within the patent text and a high-level comparison to its claims.

US Patent 8208569: Method and apparatus for multicarrier communication

Filing Date: 2010-10-08
Publication Date: 2012-06-26
Priority Date: 2003-06-12 (based on Japanese Application No. 2003-168287)

Understanding 35 U.S.C. § 102 (Novelty)
Under 35 U.S.C. § 102, an invention is considered novel only if no single piece of prior art discloses every element of the claimed invention before its effective filing date. If a single prior art reference (like a patent or printed publication) discloses all elements of a claim, that claim is anticipated and therefore not novel. The effective filing date for US8208569 is its priority date of June 12, 2003.

Given that I do not have the full text and claims of each cited prior art patent, the assessment of "potential anticipation" will be based on the titles, publication dates, and any descriptions provided within US8208569 itself, particularly in the "BACKGROUND ART" section. This is a preliminary analysis and a definitive determination would require a detailed claim-by-claim comparison with the full content of each prior art document.

Identified Prior Art References for US8208569:

1. JPH0361768A

Full Citation: JPH0361768A - Kinugawa Rubber Ind Co Ltd, "Seal device"
Publication Date: 1991-03-18
Filing Date: 1989-07-28
Brief Description: This patent describes a "Seal device." Its title indicates a subject matter unrelated to telecommunications or multicarrier communication.
Potential Anticipation (35 U.S.C. § 102): Unlikely to anticipate any claims of US8208569, as the technical field is entirely different.

2. JPH07183862A

Full Citation: JPH07183862A - Toshiba Corp, "Error correction method for frequency division multiplex transmission and transmission system using the same"
Publication Date: 1995-07-21
Filing Date: 1993-12-22
Brief Description: This patent relates to an error correction method for frequency division multiplex (FDM) transmission systems. This is a relevant technical area for multicarrier communication.
Potential Anticipation (35 U.S.C. § 102): Potentially anticipates general concepts related to error correction in multicarrier systems. Without detailed claim analysis of JPH07183862A, it's difficult to pinpoint specific claims of US8208569. However, any broad claims in US8208569 related solely to error correction in FDM/multicarrier systems might be implicated.

3. JPH1174804A

Full Citation: JPH1174804A - Mitsubishi Electric Corp, "Transmitter for satellite communication"
Publication Date: 1999-03-16
Filing Date: 1997-08-29
Brief Description: This patent describes a transmitter specifically for satellite communication. While related to communication, the specific application to satellite communication might differentiate it.
Potential Anticipation (35 U.S.C. § 102): Potentially anticipates high-level concepts of a transmitter in a communication system. However, specific features of US8208569 related to adaptive code block arrangement based on channel conditions might not be disclosed.

4. JP2000332724A

Full Citation: JP2000332724A - Mitsubishi Electric Corp, "Multi-carrier transmission system and multi-carrier modulation method"
Publication Date: 2000-11-30
Filing Date: 1999-05-17
Brief Description: US8208569 explicitly discusses this patent in its "BACKGROUND ART" section. It states that JP2000332724A describes a technology for "enhancing reception performance by carrying out two-dimensional spreading in an OFDM/CDMA (Code Division Multiple Access) communication system." It arranges spreading chips not only in the time axis direction but also in the frequency axis direction to reduce inter-code interference. However, US8208569 critically points out that "this technology is not capable to use for multicarrier communications other than CDMA scheme communications that do not use spreading chips." It also questions whether the same effect can be obtained when symbols much longer than spreading chips are arranged two-dimensionally, especially when considering "code blocks generated through the error correcting coding processing."
Potential Anticipation (35 U.S.C. § 102): This reference is highly relevant. US8208569 distinguishes itself from this prior art by focusing on multicarrier communications other than CDMA and on the arrangement of code blocks (symbols after error correction coding) rather than spreading chips. Therefore, claims in US8208569 that emphasize the adaptive arrangement of code blocks based on reception state (as opposed to fixed spreading chip arrangement for CDMA) for general multicarrier signals would likely not be anticipated. However, any very broad claims in US8208569 covering two-dimensional arrangement of data in time and frequency for a multicarrier system, without specifying "code blocks" or adaptive arrangement, could potentially be anticipated by this reference, especially if the "symbols" in JP2000332724A are interpreted broadly. The essence of JP2000332724A's teaching of two-dimensional arrangement (time and frequency) is acknowledged, but its specific application (CDMA, spreading chips) and lack of consideration for error-correcting code block characteristics are presented as distinctions.

5. JP2001103032A

Full Citation: JP2001103032A - Nippon Telegr & Teleph Corp , "OFDM modulation / demodulation circuit"
Publication Date: 2001-04-13
Filing Date: 1999-07-23
Brief Description: This patent describes an OFDM modulation/demodulation circuit. This is fundamental to OFDM systems.
Potential Anticipation (35 U.S.C. § 102): Likely anticipates the basic components and processes of OFDM modulation and demodulation. Claims of US8208569 that describe the general functionality of OFDM transmission/reception without the adaptive code block arrangement features would potentially be anticipated.

6. WO2001086826A2

Full Citation: WO2001086826A2 - Motorola, Inc., "Method of dynamic transmit scheduling using channel quality feedback"
Publication Date: 2001-11-15
Filing Date: 2000-05-09
Brief Description: This international publication describes dynamic transmit scheduling based on channel quality feedback. This directly relates to the adaptive nature of US8208569.
Potential Anticipation (35 U.S.C. § 102): This is a highly relevant reference. Claims in US8208569 related to adapting transmission (including data arrangement) based on received channel quality information (e.g., SNR, SIR, Doppler, delay profile) could be potentially anticipated. Specifically, claims like those describing an "arrangement adjusting step of adjusting an arrangement of code blocks generated through the error correcting coding processing according to the analysis result in the analysis step" (as in the summary of the invention) might find substantial overlap here. Claims 1, 11, 21, 31, 41, and 43 broadly involve mapping data to a domain. If "dynamic transmit scheduling using channel quality feedback" involves adjusting how data is mapped or arranged in time/frequency, this could be highly anticipatory, especially for the broader aspects of adaptive resource allocation.

7. US20010055287A1

Full Citation: US20010055287A1 - Manabu Sawada, "Communication system and device under OFDM system"
Publication Date: 2001-12-27
Filing Date: 2000-06-27
Brief Description: This patent application describes a communication system and device operating under an OFDM system.
Potential Anticipation (35 U.S.C. § 102): Similar to JP2001103032A, it likely anticipates general OFDM system components and methods. Specific adaptive code block arrangement features of US8208569 would be the differentiating factor.

8. WO2002073831A1

Full Citation: WO2002073831A1 - Broadstorm Telecommunications, Inc., "A communication system using ofdm for one direction and dsss for another direction"
Publication Date: 2002-09-19
Filing Date: 2001-03-09
Brief Description: This international publication describes a communication system using OFDM in one direction and Direct Sequence Spread Spectrum (DSSS) in another.
Potential Anticipation (35 U.S.C. § 102): While it relates to OFDM, its novelty appears to be in combining OFDM with DSSS for different directions. It might anticipate general OFDM transmission/reception but less likely the specific adaptive code block arrangement of US8208569 unless such arrangement is inherently part of its OFDM component and adaptive to channel conditions.

9. US20020159425A1

Full Citation: US20020159425A1 - Mitsuru Uesugi, "Radio communication apparatus and radio communication method"
Publication Date: 2002-10-31
Filing Date: 2000-03-17
Brief Description: This patent application describes a radio communication apparatus and method. The general title suggests broad applicability.
Potential Anticipation (35 U.S.C. § 102): Without more specific details about its content, it's difficult to assess. It could potentially anticipate general radio communication aspects but is less likely to anticipate the specific adaptive code block arrangement based on reception state that is central to US8208569.

10. US20030097623A1

Full Citation: US20030097623A1 - Javad Razavilar, "Method and apparatus for performance optimization and adaptive bit loading for wireless modems with convolutional coder, FEC, CRC and ARQ"
Publication Date: 2003-05-22
Filing Date: 2001-10-24
Brief Description: This patent application describes a method and apparatus for performance optimization and adaptive bit loading in wireless modems, explicitly mentioning convolutional coding and FEC. "Adaptive bit loading" suggests adapting data transmission parameters to channel conditions, which is highly relevant to US8208569's adaptive approach.
Potential Anticipation (35 U.S.C. § 102): This is a highly relevant reference, especially given its publication date just before the priority date of US8208569. Its focus on "performance optimization and adaptive bit loading" with FEC directly aligns with the goal of US8208569 to improve error rates by adjusting data arrangement based on reception state. Claims in US8208569 related to adjusting mapping of encoded data (code blocks) based on channel conditions and utilizing error-correcting codes (like convolutional coding mentioned in both) could be significantly anticipated by this reference. This could potentially anticipate aspects of claims 1, 9, 11, 18, 19, 21, 28, 29, 31, 38, 39, 41, and 43 that relate to error correction coding and adaptive transmission.

11. US20040081248A1

Full Citation: US20040081248A1 - Sergio Parolari, "Method of link adaptation in enhanced cellular systems to discriminate between high and low variability"
Publication Date: 2004-04-29
Filing Date: 2001-04-30
Brief Description: This patent application describes a method of link adaptation in cellular systems, particularly for discriminating between high and low variability channels. Link adaptation is a key concept of dynamically adjusting transmission parameters based on channel conditions, directly aligning with US8208569's objectives.
Potential Anticipation (35 U.S.C. § 102): Although published after the priority date of US8208569, its filing date (2001-04-30) is before US8208569's priority date. Therefore, it is prior art under §102(a)(2) or (e) (pre-AIA) / §102(a)(1) (post-AIA). This reference is highly relevant. Claims in US8208569 concerning the analysis of channel conditions (like variability due to fading/multipaths) and adapting the transmission characteristics (e.g., arrangement of code blocks) accordingly could be anticipated. The concept of adapting to channel variability is central to both. This could potentially anticipate aspects of claims 1, 11, 21, 31, 41, and 43 that relate to adjusting mapping based on reception state analysis.

12. US6865232B1

Full Citation: US6865232B1 - Stmicroelectronics N.V., "Multi-carrier transmission systems"
Publication Date: 2005-03-08
Filing Date: 1996-09-02
Brief Description: This patent broadly describes multi-carrier transmission systems.
Potential Anticipation (35 U.S.C. § 102): Given its very broad title and early filing date, it likely anticipates fundamental aspects of multicarrier transmission. However, the specific inventive steps of US8208569, particularly the adaptive arrangement of error-corrected code blocks based on detailed reception state analysis, are less likely to be fully disclosed. It would likely anticipate basic "transmission apparatus" or "transmission method" claims if not further limited by the adaptive arrangement features.

13. US7277498B2

Full Citation: US7277498B2 - Hitachi, Ltd., "Mapping method of code word with QAM modulation"
Publication Date: 2007-10-02
Filing Date: 2002-02-21
Brief Description: This patent describes a mapping method for codewords using QAM modulation. Mapping of encoded data (codewords/code blocks) is a direct component of US8208569.
Potential Anticipation (35 U.S.C. § 102): This reference is relevant because it deals with "mapping method of code word." Claims in US8208569 (e.g., claims 1, 11, 21, 31, 41, 43) that involve mapping encoded data (first/second data) to symbols in a domain could be potentially anticipated if the "mapping method" in US7277498B2 includes similar considerations or structures for arranging data in time and frequency, especially within code blocks. The core difference would lie in whether the mapping is adaptive based on reception state analysis as taught by US8208569.

14. US7418240B2

Full Citation: US7418240B2 - Broadcom Corporation, "Dynamic adaptation of impaired RF communication channels in a communication system"
Publication Date: 2008-08-26
Filing Date: 2002-05-03
Brief Description: This patent describes the dynamic adaptation of impaired RF communication channels in a communication system. "Dynamic adaptation" and addressing "impaired channels" are highly consistent with the goals and methods of US8208569.
Potential Anticipation (35 U.S.C. § 102): This is a highly relevant reference due to its focus on "dynamic adaptation" to channel impairments. Similar to WO2001086826A2 and US20030097623A1, this patent could potentially anticipate claims in US8208569 that involve analyzing reception states and adjusting transmission parameters (including data arrangement) to improve performance over impaired channels. The novelty of US8208569 would hinge on the specific way it adapts (e.g., arrangement of code blocks in a 2D time-frequency domain to equalize reception quality within the block) and the specific metrics used for analysis (e.g., Doppler frequency, delay profile, SIR for individual symbols). This could potentially anticipate aspects of claims 1, 11, 21, 31, 41, and 43 that describe adaptive mapping based on channel conditions.

Most Relevant Prior Art Summary:

Based on their titles and explicit discussion in the '569 patent's background, the most relevant prior art references appear to be:

JP2000332724A: Directly addressed in the background of US8208569 for its two-dimensional spreading in OFDM/CDMA. US8208569 aims to overcome its limitations for non-CDMA multicarrier and adaptive code block arrangement.
WO2001086826A2: "Method of dynamic transmit scheduling using channel quality feedback" – highly relevant to the adaptive nature of US8208569.
US20030097623A1: "Method and apparatus for performance optimization and adaptive bit loading for wireless modems with convolutional coder, FEC, CRC and ARQ" – directly addresses adaptive techniques, error correction coding, and performance optimization in wireless communication.
US20040081248A1: "Method of link adaptation in enhanced cellular systems to discriminate between high and low variability" – addresses adaptive link management based on channel variability. (Filed before US8208569 priority date).
US7418240B2: "Dynamic adaptation of impaired RF communication channels in a communication system" – directly addresses dynamic adaptation to channel conditions. (Filed before US8208569 priority date).

These references broadly deal with adaptive communication techniques, channel quality feedback, and error correction in multicarrier or wireless systems, which are central themes of US8208569. The distinguishing features of US8208569 would lie in the specific analysis methods (Doppler, delay profile, SIR per symbol) and the adaptive arrangement of code blocks in the two-dimensional time-frequency domain to equalize reception quality within the same coding block.