Patents by Inventor Ramachandran Chundru
Ramachandran Chundru has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10444918Abstract: Touch sensor configurations for reducing electrostatic discharge events in the border area of a touch sensor panel is disclosed. Touch sensors (e.g., electrodes formed on the cover material and/or the opaque mask) can be susceptible to certain events such as arcing and discharge/joule heating, which may negatively affect touch sensor performance. Examples of the disclosure can include increasing the trace width, spacing, and/or thickness in the border area relative to the trace width, spacing, and/or thickness in the visible/active area along one or more sides of the touch sensor panel. In some examples, touch electrodes can be located exclusively in the visible/active areas along one or more sides of the touch sensor panel, while dummy sections can be included in both the border and visible/active areas. Additionally or alternatively, one or more gaps between adjacent touch electrodes in the border area or serpentine routing can be included.Type: GrantFiled: August 30, 2017Date of Patent: October 15, 2019Assignee: Apple Inc.Inventors: Wencong Zhu, Albert Lin, Alexander A. Penn, Ashray Vinayak Gogte, Chun-Hao Tung, Hao Zhang, Hui Zhou, John Z. Zhong, Steven P. Hotelling, Sudip Mondal, Sumant Ranganathan, Sunggu Kang, Ramachandran Chundru, Viswa B. Pilla
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Patent number: 9972454Abstract: An electronic device includes a tactile switch assembly. The tactile switch assembly includes a tactile switch structure. A grounding structure can be included in an electrostatic discharge path in the tactile switch structure. The grounding structure can result in a shorter electrostatic discharge path that minimizes damage caused by an electrostatic discharge event. Additionally, different grounding connectors are disclosed that can attach to a grounded component in the electronic device and to a tactile switch bracket associated with the tactile switch assembly. The grounding connector provides a grounding connection to the tactile switch bracket.Type: GrantFiled: September 28, 2015Date of Patent: May 15, 2018Assignee: Apple Inc.Inventors: Sawyer I. Cohen, Tyler B. Cater, Ramachandran Chundru, Vivek Katiyar, Marwan Rammah, Ashutosh Y. Shukla
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Patent number: 9369794Abstract: To avoid undesirable electrostatic discharge events while maintaining low leakage currents, earbuds may be provided with controlled electrostatic discharge paths. The discharge paths may include discrete components such as resistors or more distributed resistive components such as resistive elastomers. A resistive elastomer may be incorporated into an interior portion of an earbud between an earbud housing structure and a ground path. A resistive elastomer may also be used in forming an ear bud tip.Type: GrantFiled: March 25, 2013Date of Patent: June 14, 2016Assignee: APPLE INC.Inventors: Stanley Rabu, Ida Lo, Victor Tiscareno, Craig Lim, Ramachandran Chundru, Robert Steinfeld, Kurt Stiehl
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Publication number: 20160063659Abstract: An electronic device may be provided with a housing such as a metal housing in which a display is mounted. Control circuitry in the electronic device such as a system-on-chip integrated circuit may produce image data. A display driver integrated circuit may receive the image data from the system-on-chip integrated circuit and may display the image data on the display. In the absence of electrostatic discharge, the display driver integrated circuit may operate normally and may generate a heartbeat signal. When disrupted due to electrostatic discharge, the display driver circuitry may cease production of the heartbeat signal. The system-on-chip integrated circuit can implement a watchdog timer. If the watchdog timer times out because the heartbeat signal is not received within a timeout period, the system-on-chip integrated circuit may reset the display.Type: ApplicationFiled: August 31, 2015Publication date: March 3, 2016Inventors: Mohammad Ali Jangda, Sang Y. Youn, Wei H. Yao, Hyunwoo Nho, Arthur L. Spence, Viswa B. Pilla, Axel B. Schumacher, Ramachandran Chundru
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Patent number: 8993899Abstract: Various systems of an electronic deice and methods for manufacturing the same are provided. In some embodiments, a routing assembly is provided that may not only route a cable along a circuit board, but that may also shield and electronic component or secure an electronic component to the circuit board. In some other embodiments, there is provided a mechanism for electrically coupling two components of an electronic device that may also be visually appealing in the context of other portions of the electronic device.Type: GrantFiled: April 8, 2014Date of Patent: March 31, 2015Assignee: Apple Inc.Inventors: Shayan Malek, Benjamin J. Pope, Daniel W. Jarvis, Tang Yew Tan, Richard H. Dinh, Robert J. Steinfeld, Ramachandran Chundru
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Publication number: 20140218606Abstract: Various systems of an electronic deice and methods for manufacturing the same are provided. In some embodiments, a routing assembly is provided that may not only route a cable along a circuit board, but that may also shield and electronic component or secure an electronic component to the circuit board. In some other embodiments, there is provided a mechanism for electrically coupling two components of an electronic device that may also be visually appealing in the context of other portions of the electronic device.Type: ApplicationFiled: April 8, 2014Publication date: August 7, 2014Applicant: Apple Inc.Inventors: Shayan Malek, Benjamin J. Pope, Daniel W. Jarvis, Tang Yew Tan, Richard H. Dinh, Robert J. Steinfeld, Ramachandran Chundru
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Patent number: 8710376Abstract: Various systems of an electronic device and methods for manufacturing the same are provided. In some embodiments, a routing assembly is provided that may not only route a cable along a circuit board, but that may also shield an electronic component or secure an electronic component to the circuit board. In some other embodiments, there is provided a mechanism for electrically coupling two components of an electronic device that may also be visually appealing in the context of other portions of the electronic device.Type: GrantFiled: February 10, 2012Date of Patent: April 29, 2014Assignee: Apple Inc.Inventors: Shayan Malek, Benjamin John Pope, Daniel William Jarvis, Tang Tan, Richard Hung Minh Dinh, Robert Steinfeld, Ramachandran Chundru
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Publication number: 20130287222Abstract: To avoid undesirable electrostatic discharge events while maintaining low leakage currents, earbuds may be provided with controlled electrostatic discharge paths. The discharge paths may include discrete components such as resistors or more distributed resistive components such as resistive elastomers. A resistive elastomer may be incorporated into an interior portion of an earbud between an earbud housing structure and a ground path. A resistive elastomer may also be used in forming an ear bud tip.Type: ApplicationFiled: March 25, 2013Publication date: October 31, 2013Inventors: Stanley Rabu, Ida Lo, Victor Tiscareno, Craig Lim, Ramachandran Chundru, Robert Steinfeld, Kurt Stiehl
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Patent number: 8428287Abstract: To avoid undesirable electrostatic discharge events while maintaining low leakage currents, earbuds may be provided with controlled electrostatic discharge paths. The discharge paths may include discrete components such as resistors or more distributed resistive components such as resistive elastomers. A resistive elastomer may be incorporated into an interior portion of an earbud between an earbud housing structure and a ground path. A resistive elastomer may also be used in forming an ear bud tip.Type: GrantFiled: July 8, 2009Date of Patent: April 23, 2013Assignee: Apple Inc.Inventors: Stanley Rabu, Ida Lo, Victor Tiscareno, Craig Lim, Ramachandran Chundru, Robert Steinfeld, Kurt Stiehl
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Publication number: 20130048368Abstract: Various systems of an electronic device and methods for manufacturing the same are provided. In some embodiments, a routing assembly is provided that may not only route a cable along a circuit board, but that may also shield an electronic component or secure an electronic component to the circuit board. In some other embodiments, there is provided a mechanism for electrically coupling two components of an electronic device that may also be visually appealing in the context of other portions of the electronic device.Type: ApplicationFiled: February 10, 2012Publication date: February 28, 2013Applicant: Apple Inc.Inventors: Shayan Malek, Benjamin John Pope, Daniel William Jarvis, Tang Tan, Richard Hung Minh Dinh, Robert Steinfeld, Ramachandran Chundru
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Publication number: 20110007929Abstract: To avoid undesirable electrostatic discharge events while maintaining low leakage currents, earbuds may be provided with controlled electrostatic discharge paths. The discharge paths may include discrete components such as resistors or more distributed resistive components such as resistive elastomers. A resistive elastomer may be incorporated into an interior portion of an earbud between an earbud housing structure and a ground path. A resistive elastomer may also be used in forming an ear bud tip.Type: ApplicationFiled: July 8, 2009Publication date: January 13, 2011Inventors: Stanley Rabu, Ida Lo, Victor Tiscareno, Craig Lim, Ramachandran Chundru, Robert Steinfeld, Kurt Stiehl