公开(公告)号：US20230065069A1

公开(公告)日：2023-03-02

申请号：US17458008

申请日：2021-08-26

Applicant: RealNetworks, Inc.

Inventor： Mirko Coric ,  Stefano Melucci ,  Michael J. Bordash

IPC: H04L29/06 ,  H04L12/58 ,  G06F40/253

Abstract: Systems and methods for processing messages to determine if the message is potentially fraudulent. The system determines if a word in the message matches a known fraudulent word or a known safe word and labels the message as potentially fraudulent in response the word matching a known fraudulent word. Otherwise, the system determines a probability that the word is potentially fraudulent based on message context. In response to determining that the probability exceeds a first threshold, the system determines distances for each pair of word/known safe words (e.g., known brands). The system labels the message as potentially fraudulent in response to the distance of a pair exceeding a second threshold. If the message is labeled as potentially fraudulent it is discarded, otherwise it is forwarded towards the destination.

公开(公告)号：US20220157078A1

公开(公告)日：2022-05-19

申请号：US17437764

申请日：2020-04-01

Applicant: REALNETWORKS, INC.

Inventor： Milko BOIC

IPC: G06V40/16 ,  G06V10/74 ,  G06V40/50

Abstract: Technologies are provided herein for adaptively learning and matching modalities of face images. A face image is obtained and a biometric signature is generated of the face image. The biometric signature is compared with a stored biometric signature obtained from data storage. Differences are determined between the biometric signature and the stored biometric signature and compared with a proximity threshold. As a result of the comparison with the proximity threshold, Processor(s) the identity of the person in the face image may be determined or the face image may be stored in data storage in association with the identity of the person.

公开(公告)号：US20220078457A1

公开(公告)日：2022-03-10

申请号：US17419667

申请日：2019-01-02

Applicant: REALNETWORKS, INC.

Inventor： Le SHI ,  Chia-Yang TSAI

IPC: H04N19/44 ,  H04N19/154 ,  H04N19/12 ,  H04N19/117 ,  H04N19/82

Abstract: Systems, methods, and articles that improve video playback on various devices by dynamically modifying the operation of a video decoder. The operation of a video decoder is dynamically simplified under certain conditions during video playback to provide higher decoding speeds that require less computing resources. A lossy control module is provided in the decoder that is operative to select different lossy decode levels to be used by the decoder at various detected operating conditions so that the decoding of a video can be dynamically sped up during playback of the video, thereby reducing or eliminating jittering or delayed playback

公开(公告)号：US10997396B2

公开(公告)日：2021-05-04

申请号：US16377108

申请日：2019-04-05

Applicant: RealNetworks, Inc.

Inventor： Milko Boic

IPC: G06K9/00

Abstract: Technologies are provided for assessing liveness of a subject presented to a set of one or more cameras. A pair of face images captured during a first time period are respectively obtained from a first and a second camera. Information regarding each face image of the pair of face images is compared with each other to determine whether the pair of face images are consistent with each other. A third face image captured during a second time period is obtained from the first camera. A first face image of the pair of face images and the third face image are assessed to determine the presence of a particular variance between the first face image and the third face image. A result is provided regarding liveness of the subject presented based on the presence of the particular variance and the determination of consistency between the pair of face images.

公开(公告)号：US20190394485A1

公开(公告)日：2019-12-26

申请号：US16488219

申请日：2017-02-23

Applicant: REALNETWORKS, INC.

Inventor： Chia-Yang TSAI ,  Kyle KUANG ,  Xiaobo LIU

IPC: H04N19/52 ,  H04N19/105 ,  H04N19/46 ,  H04N19/119 ,  H04N19/196 ,  H04N19/176

Abstract: Provided herein are systems and methods for encoding an array of coefficients representing an unencoded video frame of a sequence of video frames to generate an encoded bit-stream representative of the unencoded video frame. The array of coefficients may have a plurality of coefficient rows and a plurality of coefficient columns and the encoded bit-stream representative of the unencoded video frame may include at least a header and a video data payload. Accordingly, the array of coefficients may be separated into an array of coding blocks; each array of coding blocks may be placed into a coding stripe and each coding stripe may be placed into a coding stripe group. The array of coefficients may then be encoded such that the coefficients of a coding block are encoded using information obtained only from other coefficients in the same coding stripe group and a first video data payload portion of the video data payload corresponding to the coding stripe is an integer number of bytes in length.

公开(公告)号：US10218974B2

公开(公告)日：2019-02-26

申请号：US15562811

申请日：2015-03-31

Applicant: REALNETWORKS, INC.

Inventor： Chia-Yang Tsai ,  Wenpeng Ding ,  Gang Wu

IPC: H04N19/122 ,  H04N19/61 ,  H04N19/182 ,  H04N19/18 ,  H04N19/176 ,  H04N19/115 ,  H04N19/50 ,  H04N19/82 ,  H04N19/436

Abstract: A transform block processing procedure wherein a maximum coding-block size and a maximum transform-block size for an unencoded video frame is determined. The unencoded video frame is divided into a plurality of coding-blocks including a first coding-block and the first coding block is divided into at least one prediction block and a plurality of transform blocks. The size of the transform blocks depend at least in part on the size of the coding block and the corresponding prediction blocks. The transform blocks are then encoded, thereby generating a video data payload of an encoded bit-stream. A frame header of the encoded bit-stream, including a maximum coding-block size flag and a maximum-transform-block-size flag, is generated.

公开(公告)号：US20190007696A1

公开(公告)日：2019-01-03

申请号：US16065014

申请日：2015-12-22

Applicant: Chia-Yang TSAI ,  REALNETWORKS, INC.

Inventor： Chia-Yang TSAI ,  Gang WU

IPC: H04N19/52 ,  H04N19/182 ,  H04N19/176 ,  H04N19/105 ,  H04N19/573

Abstract: An unencoded video frame of a sequence of video frames is encoded to generate an encoded bit-stream representative of the unencoded video frame. The encoded bit-stream includes a header portion and a video data payload portion. The unencoded video frame may be divided into an array of prediction blocks, including a first prediction block. A coding mode is selected from a plurality of coding modes for use in encoding the first prediction block. The first prediction block is encoded using the selected coding mode to generate a portion of the video data payload of the encoded bit-stream. A coding mode selection flag is provided in the header portion of the encoded bit-stream, which indicates which coding mode of the plurality of coding modes was selected for encoding the first prediction block.

公开(公告)号：US20180295362A1

公开(公告)日：2018-10-11

申请号：US15765151

申请日：2015-09-30

Applicant: Chia-Yang TSAI ,  REALNETWORKS, INC.

Inventor： Chia-Yang TSAI ,  Kai WANG ,  Chao KUANG

IPC: H04N19/117 ,  H04N19/176 ,  H04N19/61

Abstract: A protocol is provided by which a current block and a neighboring block are identified and the current block is processed. In some variants a deblocking filter is applied with a filtering block size set either to the standard blocksize or to the shared blocksize, depending on whether the shared size of the current and neighboring blocks is smaller than a standard blocksize.

公开(公告)号：US09165046B2

公开(公告)日：2015-10-20

申请号：US13742169

申请日：2013-01-15

Applicant: RealNetworks, Inc.

Inventor： Stephen M. Blanding

IPC: G06F7/00 ,  G06F17/00 ,  G06F17/30

CPC classification number: G06F17/30575 ,  G06F17/30578 ,  H04L67/1097

Abstract: To synchronize data between a remote database and a local object-graph-and-persistence-framework, a synchronization framework receives messages from the local object-graph-and-persistence-framework indicating that a locally-managed object has been retrieved from a local datastore and instantiated or that the locally-managed object has been created, modified, or deleted. When the synchronization framework determines that the message was instigated by a local user's activity (as opposed to a background synchronization process), the synchronization framework synchronizes the locally-managed object with the remote database.

Abstract translation: 为了在远程数据库和本地对象图和持久性框架之间同步数据，同步框架从本地对象图和持久化框架接收消息，指示已从本地检索到本地管理的对象 数据存储和实例化，或者本地管理的对象已创建，修改或删除。 当同步框架确定消息由本地用户的活动（而不是后台同步过程）引发时，同步框架将本地管理的对象与远程数据库同步。

公开(公告)号：US20140066033A1

公开(公告)日：2014-03-06

申请号：US14079459

申请日：2013-11-13

Applicant: RealNetworks, Inc.

Inventor： Jun LEE ,  Steve VISINTAINER

IPC: H04M3/42 ,  H04W4/16

CPC classification number: H04M3/42017 ,  H04W4/16

Abstract: A ringback tone service may be configured by determining an indication to suggest one or more callers to a user of a mobile-telephony device and obtaining historical call data describing recent calls placed by recent callers to the mobile-telephony device in a recent period of time. After identifying a number of frequent callers for whom no custom ringback tone is currently provisioned, the user is prompted to select from a list of custom ringback tones that are available to provision for incoming calls from the frequent caller(s). In some cases, the user may send a message to the caller, allowing the caller to select his or her own custom ringback tone via a user interface provided by a ringback tone-service provider.

Abstract translation: 回铃音服务可以通过确定向移动电话设备的用户建议一个或多个呼叫者的指示，并且在最近一段时间内获得描述最近呼叫者向移动电话设备发出的最近呼叫的历史呼叫数据 。 在识别到当前未配置自定义回铃音的多个频道呼叫者之后，提示用户从可用于从频繁呼叫者拨出来话呼叫的自定义回铃铃列表中进行选择。 在一些情况下，用户可以向呼叫者发送消息，允许呼叫者经由回铃音服务提供商提供的用户界面来选择他或她自己的自定义回铃音。