E-patent examiner: Two-steps approach for patents prior-art retrieval

Author(s):  
Alla G. Kravets ◽  
Dmitriy M. Korobkin ◽  
Mikhail A. Dykov
Keyword(s):  
2020 ◽  
Vol 125 (2) ◽  
pp. 1591-1615
Author(s):  
Tetsuo Wada

AbstractThis paper empirically examines coincidences between “rejection citations” (i.e., those cited as grounds for rejections) added by the United States Patent and Trademark Office (USPTO) and “X/Y patent citations,” which are also added as grounds for rejections at the European Patent Office (EPO) within the same patent family, based on more than forty thousand families of triadic application sample. We consider the release timing of European search reports and the timing of rejection actions by the USPTO for the same family of patent applications. We find that the frequency of rejection (X/Y-equivalent) citation coincidences between the USPTO and the EPO according to family-to-family citation criteria increases after the release of search reports by the EPO. It suggests that the US examiners capture spillovers of search efforts from the EPO, namely, the USPTO examiners rely on prior art information collected and disclosed by the EPO. The results also reveal that International Search Reports (ISRs) prepared for Patent Corporation Treaty (PCT) applications, as well as applicant-submitted citations, play important roles for the convergence of rejection citations between the two patent offices. We furthermore find that the US examiners are less likely to add the same patent citations as the EPO examiners when rejections are persistently repeated at the USPTO. The methodology in this paper introduces the novel use of patent examiner citations to compare examiners’ citing behavior across jurisdictions.


2020 ◽  
Vol 17 (5) ◽  
pp. 382-388
Author(s):  
Aparna Wadhwa ◽  
Faraat Ali ◽  
Sana Parveen ◽  
Robin Kumar ◽  
Gyanendra N. Singh

Objective: The main aim of the present work is to synthesize chloramphenicol impurity A (CLRMIMP- A) in the purest form and its subsequent characterization by using a panel of sophisticated analytical techniques (LC-MS, DSC, TGA, NMR, FTIR, HPLC, and CHNS) to provide as a reference standard mentioned in most of the international compendiums, including IP, BP, USP, and EP. The present synthetic procedure has not been disclosed anywhere in the prior art. Methods: A simple, cheaper, and new synthesis method was described for the preparation of CLRM-IMP-A. It was synthesized and characterized by FTIR, DSC, TGA, NMR (1H and 13C), LC-MS, CHNS, and HPLC. Results: CLRM-IMP-A present in drugs and dosage form can alter the therapeutic effects and adverse reaction of a drug considerably, it is mandatory to have a precise method for the estimation of impurities to safeguard the public health. Under these circumstances, the presence of CLRM-IMP-A in chloramphenicol (CLRM) requires strict quality control to satisfy the specified regulatory limit. The synthetic impurity obtained was in the pure form to provide a certified reference standard or working standard to stakeholders with defined potency. Conclusion: The present research describes a novel technique for the synthesis of pharmacopoeial impurity, which can help in checking/controlling the quality of the CLRM in the international markets.


Symmetry ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 700
Author(s):  
Yufei Zhu ◽  
Zuocheng Xing ◽  
Zerun Li ◽  
Yang Zhang ◽  
Yifan Hu

This paper presents a novel parallel quasi-cyclic low-density parity-check (QC-LDPC) encoding algorithm with low complexity, which is compatible with the 5th generation (5G) new radio (NR). Basing on the algorithm, we propose a high area-efficient parallel encoder with compatible architecture. The proposed encoder has the advantages of parallel encoding and pipelined operations. Furthermore, it is designed as a configurable encoding structure, which is fully compatible with different base graphs of 5G LDPC. Thus, the encoder architecture has flexible adaptability for various 5G LDPC codes. The proposed encoder was synthesized in a 65 nm CMOS technology. According to the encoder architecture, we implemented nine encoders for distributed lifting sizes of two base graphs. The eperimental results show that the encoder has high performance and significant area-efficiency, which is better than related prior art. This work includes a whole set of encoding algorithm and the compatible encoders, which are fully compatible with different base graphs of 5G LDPC codes. Therefore, it has more flexible adaptability for various 5G application scenarios.


Author(s):  
Craig W. Lindsley ◽  
Jacob M. Hooker ◽  
Dennis C. Liotta
Keyword(s):  

Electronics ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 808
Author(s):  
Jaume Anguera ◽  
Aurora Andújar ◽  
José Luis Leiva ◽  
Oriol Massó ◽  
Joakim Tonnesen ◽  
...  

Wireless devices such as smart meters, trackers, and sensors need connections at multiple frequency bands with low power consumption, thus requiring multiband and efficient antenna systems. At the same time, antennas should be small to easily fit in the scarce space existing in wireless devices. Small, multiband, and efficient operation is addressed here with non-resonant antenna elements, featuring volumes less than 90 mm3 for operating at 698–960 MHz as well as some bands in a higher frequency range of 1710–2690 MHz. These antenna elements are called antenna boosters, since they excite currents on the ground plane of the wireless device and do not rely on shaping complex geometric shapes to obtain multiband behavior, but rather the design of a multiband matching network. This design approach results in a simpler, easier, and faster method than creating a new antenna for every device. Since multiband operation is achieved through a matching network, frequency bands can be configured and optimized with a reconfigurable matching network. Two kinds of reconfigurable multiband architectures with antenna boosters are presented. The first one includes a digitally tunable capacitor, and the second one includes radiofrequency switches. The results show that antenna boosters with reconfigurable architectures feature multiband behavior with very small sizes, compared with other prior-art techniques.


2021 ◽  
pp. 384-393
Author(s):  
Olga Viktorovna Gavrilova

This article discusses a very well-known and frequently used technique for an implementation of a variety of artistic projects - a collage created by means of information technology. The article tells about using collage in higher education for teaching graphics, in particular, raster editors. Graphics editors such as Adobe Photoshop or GIMP are included in the Computer Science and Information Technology program. Students get the opportunity to create graphic images regardless of their prior art education. The introduction of the topic "Creating a collage by means of a raster editor" introduces a creative element into IT disciplines and develops the student's associative thinking at the level of brain functioning. As a rule, raster editors are used to edit an image, not to create it. Therefore, preparation for these classes encourages students to search for the necessary visual material on the Internet. In order to obtain more personal images, a deep study of photography techniques is required. It is also useful to study the history of photo and film collages, their texture and structure. The scope of the collage use is various. This is psychology, teaching foreign languages and, of course, fine arts. Advertising posters that we see in large numbers in the media and transport are also collages. The article traces the history of collage creation from ancient Egyptian history to modern advertising products. It is especially interesting to study the time when collage became a conscious technique. This is a great layer of avant-garde art.


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