公开(公告)号：US08495021B2

公开(公告)日：2013-07-23

申请号：US12324453

申请日：2008-11-26

申请人： Utkarsh Srivastava ,  Arvind Thiagarajan

发明人： Utkarsh Srivastava ,  Arvind Thiagarajan

IPC分类号： G06F17/30 ,  G06F7/00

CPC分类号： G06F17/30575

摘要： The subject matter disclosed herein relates to distribution data items within geographically distributed databases.

摘要翻译： 本文公开的主题涉及地理上分布的数据库内的分发数据项。

公开(公告)号：US20100131545A1

公开(公告)日：2010-05-27

申请号：US12324453

申请日：2008-11-26

申请人： Utkarsh Srivastava ,  Arvind Thiagarajan

发明人： Utkarsh Srivastava ,  Arvind Thiagarajan

IPC分类号： G06F17/30

CPC分类号： G06F17/30575

摘要： The subject matter disclosed herein relates to distribution data items within geographically distributed databases.

摘要翻译： 本文公开的主题涉及地理上分布的数据库内的分发数据项。

公开(公告)号：US20220218256A1

公开(公告)日：2022-07-14

申请号：US17570346

申请日：2022-01-06

申请人： Arvind Thiagarajan

发明人： Arvind Thiagarajan

IPC分类号： A61B5/282 ,  A61B5/00 ,  A61B5/26 ,  A61B5/263

摘要： Systems and methods for a medical device are provided. The handheld medical device includes a housing including a front and rear side. A diaphragm is located in the center of the rear side of the housing. Three or less rear electrodes, configured to collect electromagnetic signals from the chest region of a patient, are located in a semi-circular in shape that encircles the diaphragm on the rear side of the housing. Two front electrodes located on the front side of the housing collect signals from the left and right index fingers of the patient. A screen is located between the two front electrodes. The device may include a transmitter, in some cases a Bluetooth module, for coupling the medical device to a user device. The user device includes an application that receives the signals and performs analysis on them. The five electrode inputs are used to calculate seven ECG channels.

公开(公告)号：US20220061666A1

公开(公告)日：2022-03-03

申请号：US17401259

申请日：2021-08-12

申请人： Arvind Thiagarajan

发明人： Arvind Thiagarajan

IPC分类号： A61B5/00 ,  A61B7/04 ,  A61B5/282 ,  A61B5/025 ,  A61B5/25 ,  A61B5/339

摘要： Systems and methods for electronically monitoring chest sounds and/or sensing electrical cardiac signals such as ECG signals are provided. In one embodiment, a hybrid stethdiographer has a sensing assembly with a chestpiece and a user interface. Stethdiographer also includes a conduit, a power source compartment, a pair of binaurals and a corresponding pair of earpieces. The user interface includes a record button, a mode selector and a display screen. The chestpiece includes a diaphragm and a plurality of electrical cardiac sensors.

公开(公告)号：US20080273709A1

公开(公告)日：2008-11-06

申请号：US12109346

申请日：2008-04-25

申请人： Arvind Thiagarajan ,  Damon J. Coffman ,  Jay Jethwa ,  Kamil Unver

发明人： Arvind Thiagarajan ,  Damon J. Coffman ,  Jay Jethwa ,  Kamil Unver

IPC分类号： A61B7/04

CPC分类号： A61B7/04 ,  A61B5/0006 ,  A61B7/005 ,  G16H40/63

摘要： A tunable auscultation system includes a heart sound acquirer for sensing heart sounds from at least one chest location of the patient. An initial conditioner then conditions the heart sounds through pre-amplification and anti-aliasing. The heart sounds are transduced into electrical signals by a signal processor. The electric heart signals are then tuned by an analysis tool. The analysis tool includes an interaction tuner, a processing tuner and an output tuner. The interaction tuner includes a preset tuning selector and a dynamic range tuning selector. The processing tuner includes a band pass filter and an algorithmic extraction engine which applies extraction algorithms to the electric heart signals, segments them and extracts signals of interest. Signals of interest may be correlated to specific pathologies. The output tuner includes a signal strength indicator, a diagnosis indicator, an overlapping cardiac cycle display and a display configuration engine. A display module provides output.

摘要翻译： 可调谐听诊系统包括用于感测来自患者的至少一个胸部位置的心脏声音的心脏声音获取器。 然后，初始调节器通过预放大和抗锯齿来调节心音。 心音由信号处理器转换成电信号。 然后通过分析工具调整电心脏信号。 分析工具包括交互调谐器，处理调谐器和输出调谐器。 交互调谐器包括预置调谐选择器和动态范围调谐选择器。 处理调谐器包括带通滤波器和算法提取引擎，其将提取算法应用于电心脏信号，对它们进行分段并提取感兴趣的信号。 感兴趣的信号可能与特定病理学相关。 输出调谐器包括信号强度指示器，诊断指示器，重叠的心律周期显示和显示配置引擎。 显示模块提供输出。

公开(公告)号：US20200329967A1

公开(公告)日：2020-10-22

申请号：US16726140

申请日：2019-12-23

申请人： Arvind Thiagarajan

发明人： Arvind Thiagarajan

IPC分类号： A61B5/00 ,  A61B7/04 ,  A61B5/0408

摘要： Systems and methods for electronically monitoring chest sounds and/or sensing electrical cardiac signals such as ECG signals are provided. In one embodiment, a hybrid stethdiographer has a sensing assembly with a chestpiece and a user interface. Stethdiographer also includes a conduit, a power source compartment, a pair of binaurals and a corresponding pair of earpieces. The user interface includes a record button, a mode selector and a display screen. The chestpiece includes a diaphragm and a plurality of electrical cardiac sensors.

公开(公告)号：US07806833B2

公开(公告)日：2010-10-05

申请号：US11740906

申请日：2007-04-26

申请人： Arvind Thiagarajan ,  Tat-Jin Teo ,  Damon J. Coffman

发明人： Arvind Thiagarajan ,  Tat-Jin Teo ,  Damon J. Coffman

IPC分类号： A61B5/02

CPC分类号： A61B7/04 ,  A61B5/0006 ,  A61B7/005 ,  G06F19/00 ,  G16H40/63

摘要： An auscultation system aids a clinician's diagnosis of the heart sounds by visually displaying at least an S1 heart sound and an S2 heart sound, and ascertaining an onset of at least one of the heart sounds. A corresponding audio representation of the heart sounds can be provided to the clinician. The auscultation system includes a sensor for sensing heart sounds from at least one chest location of the patient and for transducing the heart sounds into electrical signals. The auscultation system also includes a signal processor for selectively filtering the electrical signals thereby highlighting frequency differences of the heart sounds, and further includes a video display for selectively displaying the selectively filtered electrical heart signals. In some embodiments, the auscultation system also displays calipers corresponding to the time domain and the frequency domain of the heart sounds, permitting the clinician to zoom in and out portions of the heart sounds of particular interest and also to take more accurate measurements of these portions of the heart sounds.

摘要翻译： 听诊系统通过目视显示至少S1心音和S2心音，并且确定至少一个心音的发作，帮助临床医生对心脏声音的诊断。 可以向临床医生提供心音的对应音频表示。 听诊系统包括用于感测来自患者的至少一个胸部位置的心脏声音并用于将心脏声音转换为电信号的传感器。 听诊系统还包括用于选择性地过滤电信号的信号处理器，从而突出显示心脏声音的频率差，并且还包括用于选择性地显示选择性滤波的电心电信号的视频显示器。 在一些实施例中，听诊系统还显示对应于心脏声音的时域和频域的卡钳，允许临床医生放大和缩小特别感兴趣的心音的部分并且还对这些部分进行更准确的测量 心脏的声音。

公开(公告)号：US20090262991A1

公开(公告)日：2009-10-22

申请号：US12087013

申请日：2007-03-03

申请人： Arvind Thiagarajan

发明人： Arvind Thiagarajan

IPC分类号： G06K9/36

CPC分类号： H04N21/2662 ,  H04N19/587 ,  H04N19/59 ,  H04N21/234327 ,  H04N21/234363 ,  H04N21/234381 ,  H04N21/6125 ,  H04N21/8153

摘要： A method for transmitting a compressed image via a network, the method comprising: converting (11) the compressed image into a plurality of images, each of the plurality of images having a predetermined resolution level which is less than the original resolution of the image; transforming (12) each of the plurality of images into a data stream; and transmitting (13) each data stream in order according to resolution level, from the lowest resolution level to the original resolution of the image; wherein the compressed image is an image compressed (10) by comparing each image element with a previous image element and; if they are both equal, a first value is recorded; and if they are not both equal, a second value is recorded.

摘要翻译： 一种用于经由网络发送压缩图像的方法，所述方法包括：将压缩图像转换（11）为多个图像，所述多个图像中的每一个具有小于图像的原始分辨率的预定分辨率水平; 将所述多个图像中的每一个图像变换为数据流; 并且根据分辨率水平从图像的最低分辨率水平到原始分辨率按顺序发送（13）每个数据流; 其中所述压缩图像是通过将每个图像元素与先前图像元素进行比较来压缩（10）的图像; 如果它们都相等，则记录第一个值; 如果它们不相等，则记录第二个值。

公开(公告)号：US20080260269A1

公开(公告)日：2008-10-23

申请号：US12094599

申请日：2005-11-22

申请人： Arvind Thiagarajan

发明人： Arvind Thiagarajan

IPC分类号： G06K9/36

CPC分类号： H03M7/30 ,  H04N19/182 ,  H04N19/184 ,  H04N19/593

摘要： A method for compressing image data of an image wherein a difference between each element and a previous element is calculated (303), the method comprising: comparing (304) the difference with a pre-determined correlation value; if they are equal, a first value is recorded into a bit plane (308), where the pre-determined correlation value is associated with the bit plane (305); and if they are not equal, a second value is recorded into the bit plane (309). Where a first value is recorded in the bit plane, the value of the element is not stored (310), where there is a second value in the bit plane, the value of the element is stored (311). The compressed image can be decompressed using both the bit plane and the bit plane index.

摘要翻译： 一种用于压缩图像的图像数据的方法，其中计算每个元素和先前元素之间的差异（303），所述方法包括：将所述差异与预定相关值进行比较（304） 如果它们相等，则将第一值记录到位平面（308）中，其中预定相关值与位平面相关联（305）; 并且如果它们不相等，则将第二值记录到位平面（309）中。 在位平面中记录第一值的情况下，不存储元素的值（310），其中在位平面中存在第二值，存储元素的值（311）。 压缩图像可以使用位平面和位平面索引进行解压缩。

公开(公告)号：US20070065018A1

公开(公告)日：2007-03-22

申请号：US10539646

申请日：2004-12-15

申请人： Arvind Thiagarajan

发明人： Arvind Thiagarajan

IPC分类号： G06K9/36

CPC分类号： H04N19/93 ,  H04N19/162 ,  H04N19/17 ,  H04N19/184 ,  H04N19/186 ,  H04N19/50 ,  H04N19/593 ,  H04N19/60

摘要： A method for compressing image data of an image, comprising: transforming the image data into a bit plane of first and second values; comparing each image element with a previous image element and if they are equal, recording a first value into a bit plane; and if they are not equal, recording a second value into the bit plane; and encoding repeating first and second values in the bit plane into a bit plane index; wherein the compressed image is able to be decompressed using the bit plane index and the bit plane.

摘要翻译： 一种用于压缩图像的图像数据的方法，包括：将图像数据变换成第一和第二值的位平面; 将每个图像元素与先前图像元素进行比较，并且如果它们相等，则将第一值记录到位平面中; 并且如果它们不相等，则在位平面中记录第二值; 以及将位平面中的重复的第一和第二值编码为位平面索引; 其中压缩图像能够使用位平面索引和位平面进行解压缩。