公开(公告)号：US20140023275A1

公开(公告)日：2014-01-23

申请号：US13844641

申请日：2013-03-15

Applicant: QUALCOMM INCORPORATED

Inventor： Raj Kumar Krishna Kumar ,  Pawan Kumar Baheti

IPC: G06K9/58

CPC classification number: G06K9/58 ,  G06K9/6227 ,  G06K9/6292 ,  G06K9/6814 ,  G06K2209/01 ,  G06K2209/013

Abstract: An electronic device and method receive a block sliced from a rectangular portion of an image of a scene of real world captured by a camera and use a property of the block to operate one of multiple optical character recognition (OCR) decoders. In an illustrative aspect, a first OCR decoder is configured to recognize characters whose property satisfies the test based on a first limit, the first limit being obtained by reducing a predetermined limit by an overlap amount. In this illustrative aspect, a second OCR decoder is configured to recognize characters whose property does not satisfy the test based on a second limit, the second limit being obtained by increasing the predetermined limit by the overlap amount. When the property of the block satisfies the test, the first OCR decoder is operated and alternatively the second OCR decoder is operated, resulting in candidates for a character being identified.

Abstract translation: 电子设备和方法接收从相机拍摄的现实世界的场景的图像的矩形部分切割的块，并使用块的属性来操作多个光学字符识别（OCR）解码器之一。 在说明性方面，第一OCR解码器被配置为基于第一限制来识别其性能满足测试的字符，所述第一限制是通过将预定限制减小重叠量而获得的。 在该说明性方面，第二OCR解码器被配置为基于第二限制来识别属性不满足测试的字符，所述第二限制是通过将预定限度增加重叠量而获得的。 当块的属性满足测试时，第一OCR解码器被操作，并且可选地，第二OCR解码器被操作，导致正在识别的字符的候选。

公开(公告)号：US12160294B2

公开(公告)日：2024-12-03

申请号：US18050847

申请日：2022-10-28

Applicant: QUALCOMM Incorporated

Inventor： Manikandan Chandrasekar ,  Devangam Kotha Kirankumar ,  Raj Kumar Krishna Kumar ,  Rohit Kapoor

IPC: H04B7/06 ,  H04B7/024 ,  H04W72/20 ,  H04W74/0816

Abstract: Certain aspects of the present disclosure provide techniques for handling coordinated beamforming in wireless communications systems. An example method performed by a first access point (AP) generally includes outputting, for transmission to a second AP, at least one of a first indication that the first AP supports spatial reuse of transmission resources or a second indication that the first AP supports asymmetric coordinated beamforming (CBF); and outputting, for transmission, signaling to one or more stations (STAs) supported by the first AP without intent to form nulls directed toward other STAs supported by the second AP.

公开(公告)号：US12132559B2

公开(公告)日：2024-10-29

申请号：US18159640

申请日：2023-01-25

Applicant: QUALCOMM Incorporated

Inventor： Venkatesh Bhat ,  Manikandan Chandrasekar ,  Raj Kumar Krishna Kumar

IPC: H04B7/145 ,  H04W76/27

CPC classification number: H04B7/145 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications are described. Techniques described herein provide for passive beamforming for Wi-Fi. A first wireless device communicating in an active session via a first bandwidth with a second wireless device may use a passive beamforming technique to identify a transmission sector of the second wireless device and/or a receive sector for communications on a second bandwidth, while the first wireless device is in an inactive session state for the second bandwidth. The second wireless device may transmit beacons in the second bandwidth via directional transmission sectors while the first wireless device is in the inactive session state for the second bandwidth. The first wireless device may receive the beacons and may select a transmission sector based on the beacons. The first wireless device may indicate the selected transmission sector to the second wireless device. The first wireless device may select a receive sector based on the beacons.

公开(公告)号：US11438103B2

公开(公告)日：2022-09-06

申请号：US17144689

申请日：2021-01-08

Applicant: QUALCOMM Incorporated

Inventor： Raj Kumar Krishna Kumar ,  Rohit Kapoor ,  Yatiraj Paniyoor Tantri ,  Balaji Nagarajan ,  Abhijit Bhattacharya ,  Padmanabhan Venkataraman Karthic ,  Kundan Kumar Lucky ,  Venkatesh Bhat ,  Chiranthan Purushotham ,  Siju Kurian

IPC: H04W8/24 ,  H04L1/18 ,  H04W80/02

Abstract: Certain aspects of the present disclosure provide techniques for sending a retransmission of codewords of a data packet to a receiver node, that were not previously successfully received by the receiver node, in a manner compatible with a receive capability constraint of the receiver node.

公开(公告)号：US20140023278A1

公开(公告)日：2014-01-23

申请号：US13789549

申请日：2013-03-07

Applicant: QUALCOMM INCORPORATED

Inventor： Raj Kumar Krishna Kumar ,  Pawan Kumar Baheti ,  Dhananjay Ashok Gore

IPC: G06K9/46

CPC classification number: G06K9/4671 ,  G06K9/4647 ,  G06K2209/01

Abstract: An image of real world is processed to identify blocks as candidates to be recognized. Each block is subdivided into sub-blocks, and each sub-block is traversed to obtain counts, in a group for each sub-block. Each count in the group is either of presence of transitions between intensity values of pixels or of absence of transition between intensity values of pixels. Hence, each pixel in a sub-block contributes to at least one of the counts in each group. The counts in a group for a sub-block are normalized, based at least on a total number of pixels in the sub-block. Vector(s) for each sub-block including such normalized counts may be compared with multiple predetermined vectors of corresponding symbols in a set, using any metric of divergence between probability density functions (e.g. Jensen-Shannon divergence metric). Whichever symbol has a predetermined vector that most closely matches the vector(s) is identified and stored.

Abstract translation: 处理真实世界的图像以识别块作为要被识别的候选。 每个块被细分为子块，并且每个子块被遍历以在每个子块的组中获得计数。 组中的每个计数是存在像素的强度值之间的转换或像素的强度值之间不存在转换。 因此，子块中的每个像素有助于每个组中的至少一个计数。 至少基于子块中的像素总数，子块中的计数被归一化。 可以使用概率密度函数（例如，Jensen-Shannon散度度量）之间的任何度量的度量，将包括这种归一化计数的每个子块的向量与集合中的相应符号的多个预定向量进行比较。 无论哪个符号具有与矢量最接近匹配的预定向量被识别和存储。

公开(公告)号：US20140023274A1

公开(公告)日：2014-01-23

申请号：US13828060

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Kishor K. Barman ,  Pawan Kumar Baheti ,  Raj Kumar Krishna Kumar

IPC: G06K9/78

CPC classification number: G06K9/78 ,  G06K9/344 ,  G06K9/723 ,  G06K2209/01 ,  G06K2209/013

Abstract: An electronic device and method identify a block of text in a portion of an image of real world captured by a camera of a mobile device, slice sub-blocks from the block and identify characters in the sub-blocks that form a first sequence to a predetermined set of sequences to identify a second sequence therein. The second sequence may be identified as recognized (as a modifier-absent word) when not associated with additional information. When the second sequence is associated with additional information, a check is made on pixels in the image, based on a test specified in the additional information. When the test is satisfied, a copy of the second sequence in combination with the modifier is identified as recognized (as a modifier-present word). Storage and use of modifier information in addition to a set of sequences of characters enables recognition of words with or without modifiers.

Abstract translation: 电子设备和方法识别由移动设备的照相机捕获的真实世界的图像的一部分中的文本块，从块中切片子块，并将形成第一序列的子块中的字符识别为 用于识别其中的第二序列的预定序列集合。 当不与附加信息相关联时，第二序列可以被识别为被识别（作为不包含修饰词的词）。 当第二个序列与附加信息相关联时，将根据附加信息中指定的测试对图像中的像素进行检查。 当测试被满足时，与修饰符组合的第二个序列的拷贝被识别为识别（作为修饰语现在的词）。 修改器信息的存储和使用除了一组字符序列之外，还可以识别具有或不具有修饰符的单词。