Karthik Katingari

US Patent:

8436729, May 7, 2013

Filed:

Jun 21, 2010

Appl. No.:

12/819892

Inventors:

Karthik H. Katingari - Milpitas CA, US
Thomas Ying-Ching Lo - Fremont CA, US

Assignee:

Salutron, Inc. - Fremont CA

International Classification:

G08B 1/08

US Classification:

34053912

Abstract:

A monitor provides a wireless signal with respective pulses, based on a heartbeat, repetitive physical movement, or other repetitive bodily action of a user. The pulses include longer duration pulses whose duration identifies the monitor, and distinguishes it from other monitors which may provide crosstalk interference. The longer duration pulses are interspersed among short duration pulses to reduce power consumption. The pulses are transmitted in successive cycles, where the number of the longer duration pulses is set adaptively in each cycle based on a detected rate, or rate of change, of respective instances of the bodily action. A receiver unit processes the signal to determine a rate of the bodily action and provide a corresponding output. The receiver unit can synchronize with two or more consecutive longer duration pulses. The pulse duration can be fixed or determined dynamically, e. g.

US Patent:

8514068, Aug 20, 2013

Filed:

Feb 23, 2010

Appl. No.:

12/711114

Inventors:

Karthik H. Katingari - Milpitas CA, US
Thomas Ying-Ching Lo - Fremont CA, US

Assignee:

Salutron, Inc. - Fremont CA

International Classification:

G08B 1/08

US Classification:

34053912

Abstract:

A monitor provides a wireless signal with respective pulses, based on a heartbeat, repetitive physical movement, or other repetitive bodily action of a user. The pulses include longer duration pulses whose duration identifies the monitor, and distinguishes it from other monitors which may provide crosstalk interference. The longer duration pulses are interspersed among short duration pulses to reduce power consumption. A receiver unit processes the signal to determine a rate of the bodily action and provide a corresponding output. The receiver unit can operate in a baseline mode when crosstalk is not detected, where each pulse is used to determine the rate, or in a crosstalk mode when crosstalk is detected, where only the longer duration pulses are used to determine the rate. The receiver unit can synchronize with two or more consecutive longer duration pulses. The pulse duration can be fixed or determined dynamically, e. g.

US Patent:

20070244398, Oct 18, 2007

Filed:

Apr 12, 2006

Appl. No.:

11/402476

Inventors:

Thomas Lo - Fremont CA, US
Karthik Katingari - Milpitas CA, US

International Classification:

A61B 5/02

US Classification:

600500000, 600481000

Abstract:

A heart rate monitor implements power saving algorithms while monitoring a subject's heart rate. The monitor continuously monitors a subject during an initial period to determine an initial heart rate. After the initial heart rate is acquired, power may not be provided for portions of the monitor until a heart beat is expected to occur. At some point before the expected heart beat occurs, power is returned to the components which have not received power. The expected heart beat is then detected, and power to selected portions of the monitor is terminated again until another expected heart beat approaches in time. By providing power to monitor components just before an expected heart beat, the monitor may still detect the heart beat and determine the corresponding heart rate of the user. The period of time during which power is terminated for some components may be determined from the detected heart rate. The number of heart beats during which power is terminated for selected monitor components may vary.

US Patent:

20230110372, Apr 13, 2023

Filed:

Oct 20, 2022

Appl. No.:

17/970143

Inventors:

- San Jose CA, US
Uday Mudoi - San Mateo CA, US
Karthik Katingari - San Jose CA, US
Mahdi Heydari - Stanford CA, US

International Classification:

G01P 15/18
G01C 19/00

Abstract:

Described herein are methods and systems for controlling a sensor assembly with a plurality of same type sensors. Sensors are operated in active and inactive states. The activation state of at least one of the sensors is changed based on an operational parameter that relates to an environmental condition differentially affecting the plurality of same type sensors.

US Patent:

20230104773, Apr 6, 2023

Filed:

Dec 2, 2022

Appl. No.:

18/073645

Inventors:

- San Jose CA, US
Karthik Katingari - San Jose CA, US
Nicolas Sauvage - San Jose CA, US
Jibran Ahmed - Calgary, CA

Assignee:

InvenSense, Inc. - San Jose CA

International Classification:

A61B 5/00
A61B 5/01
A61B 10/00

Abstract:

A hearable comprises a wearable structure including a speaker, a sensor, and a temperature compensating circuit which measures temperature in an environment of the sensor. A portion of the wearable structure, which includes the sensor and temperature compensating circuit, is disposed within a user’s ear when in use. A sensor processing unit which is communicatively coupled with the temperature compensating circuit: acquires temperature data from the temperature compensating circuit while the portion of the wearable structure is disposed within the ear of the user; builds a baseline model of normal temperature for the user; and compares a temperature measurement acquired from the temperature compensating circuit to the baseline model. In response to the comparison showing a deviation beyond a preset threshold from the baseline model, the sensor processing unit generates a health indicator for the user which is used to monitor an aspect of health of the user.

US Patent:

20210403318, Dec 30, 2021

Filed:

Mar 15, 2021

Appl. No.:

17/202070

Inventors:

- San Jose CA, US
Karthik Katingari - San Jose CA, US
Adam Martin - San Jose CA, US

International Classification:

B81B 7/00
B81C 3/00

Abstract:

A semiconductor package with design features, including an isolation structure for internal components and a flexible electrical connection, that minimizes errors due to environmental temperature, shock, and vibration effects. The semiconductor package may include a base having a first portion surrounded by a second portion. A connector assembly may be attached to the first portion. The connector assembly may extend through an opening in the base. A lid attached may be attached to, at least, the second portion. The attached lid may form a hermetically-sealed cavity defined by an upper surface of the first portion, the connector assembly, and an inner surface of the lid. An elastomer pad may be on the first portion and a sub-assembly may be on the elastomer pad. A flexible electrical connection may be formed between the connector assembly and the sub-assembly.

US Patent:

20200348134, Nov 5, 2020

Filed:

May 1, 2019

Appl. No.:

16/401112

Inventors:

Karthik Katingari - San Jose CA, US
Jongwoo Shin - Pleasanton CA, US
Joe Seeger - San Jose CA, US
Vamshi Gangumalla - Saratoga CA, US
Ardalan Heshmati - Saratoga CA, US
Sheena Shi - Sunnyvale CA, US

Assignee:

InvenSense, Inc. - San Jose CA

International Classification:

G01C 19/5719
G01P 15/08
G01P 15/125

Abstract:

Described herein are methods and systems for configuring a motion sensor assembly to compensate for a temperature gradient. First and second sensors of the same type are arranged as opposing pairs with respect to a first axis that may be defined by a temperature gradient caused by at least one thermal element. Combining the output measurements of the first sensor and the second sensor allows effects of the temperature gradient on sensor measurements of the first sensor and the second sensor to be compensated.

US Patent:

20200348189, Nov 5, 2020

Filed:

Jan 8, 2020

Appl. No.:

16/737868

Inventors:

Mahdi Heydari - Stanford CA, US
Karthik Katingari - San Jose CA, US

Assignee:

InvenSense, Inc. - San Jose CA

International Classification:

G01K 15/00
G01P 15/18
G01K 13/00

Abstract:

Described herein are methods and systems for configuring sensors to compensate for a temperature gradient. Multiple sensor sets, each having at least two sensors of a same type with orthogonal axes, are positioned to form at least one opposing sensor pair, in which an axis of one sensor of one sensor set is in an opposite orientation to an axis of one sensor of another sensor set. A combined measurement of each opposing sensor pair may be output which is compensated for an effect of a temperature gradient on sensor measurements of the sensors