Patexia. Contest

CONTEST

Competed
Prize
$7,000
DEADLINE
This contest is closed.
Winner
Winner

Joon Maeng

technology
Winner

SP SP

technology
Runner Up

Jordan Bell

technology
Runner Up
Runner Up

Eva Kunnemann

technology
Runner Up

Roopa V

technology
Runner Up

Bhaskar_K

technology
Runner Up

David Heckadon

technology
Runner Up

Howard Pasear

technology
Runner Up

Yogesh Bansal

technology
Runner Up

Simon Sunatori

technology
Runner Up

Amit Aswal

technology

Problem

Patexia seeks prior art for US Patent 8,325,838, with a focus on the independent claim 1.

With respect to ‘838 patent, Patexia is looking for a receiving apparatus (such as a user terminal) for orthogonal frequency division multiplexing (OFDM) wireless communication, which has a limited usable bandwidth to receive OFDM signals from a transmitting apparatus (such as a base station). Following Fig. 1 from ‘838 is a block diagram illustrating a schematic configuration of a transmitting circuit according to the embodiment.  

Figure 1

Submitted documents describing this system must be:

●      filed or published before 10/28/2005

Have a question about this contest? Ask a Question

Questions

#QuestionValue
1Is the reference either a US patent filed, a foreign patent published, or a non-patent document published before October 28, 2005? T/F
2Does the reference describe a receiving apparatus (such as a user terminal) for orthogonal frequency division multiplexing (OFDM) wireless communication, comprising a receiving circuit, signal processing components, and signal transmitting components? 5
3Does the receiving circuit receive from a transmitting apparatus (such as a base station) OFDM signals comprising multiple subcarriers allocated among frequency channels used by the transmitting apparatus for transmitting signals and corresponds to a usable bandwidth of the receiving circuit? 25
4Do the OFDM signals comprise a data portion received by the receiving apparatus and allocated to multiple used (but not to unused) subcarriers, and the unused subcarriers are determined by the transmitting apparatus based on the receiving circuit’s usable bandwidth? 30
5Do the OFDM signals also comprise a broadcast portion with broadcast information comprising an indirect indication of the positions of the unused subcarriers within the data portion, with the positions in relation to the indirect indication mutually known by transmitting and receiving apparatus? 30
6Do the signal processing components demodulate the used subcarriers and not demodulate the unused subcarriers within the data portion? 5
7Do the signal transmitting components notify the transmitting apparatus the receiving circuit’s usable bandwidth? 5

Additional Notes

Prior Art Search

Prior Art Search

This is a Prior Art Search contest aimed at determining if a patent idea was known and publicly available before a patent was filed.

+5 bonus points will be awarded for non-patent literature and for foreign language references.

Prize: The prize for this contest consists of $5,000 community prize which will be distributed based on our prize distribution policy and $2,000 bonus which will be distributed for qualified refernces as explained below.

Known Referecnes: Submission of known references as long as it answers all the questions correctly is qualified for the $5,000 prize money but NOT qualified for the $2,000 bonus.

An Extra $2,000 bonus will be awarded according to our distribution policy to contestants if their submission is (1) a non-patent-literature or a foreign document, (2) able to answer all questions correctly, and (3) outside our KNOWN references list (1), (2) & (3).

This contest will close on Sunday, October 29th, 2017 at 11:59 PM PT.

Please review the Contest Rules. For more information on how to submit to this Contest type, please read the Intro to Prior Art Search page.