Patents by Inventor Chandra Mohan
Chandra Mohan 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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Publication number: 20150055738Abstract: A fractional-N divider of a frequency synthesizer is driven by a dither-less error feedback modulator to alleviate fractional spurious tones introduced by the cyclic train of division ratios from delta-sigma modulators. A first feedback loop generates the feedback signal. A second feedback loop disrupts fractional spurious tones and a third feedback loop provides approximately zero static error.Type: ApplicationFiled: July 9, 2014Publication date: February 26, 2015Inventors: Tom Taoufik Bourdi, Thomas Obkircher, Bipul Agarwal, Chandra Mohan
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Patent number: 8586151Abstract: A process for the preparation of nano structured silicon thin film using radio frequency (rf) plasma discharge useful for light emitting devices such as light emitting diode, laser etc. which allows precise control of the nanocrystal size of silicon and its uniform distribution without doping using a plasma processing for obtaining efficient photoluminescence at room temperature.Type: GrantFiled: June 13, 2008Date of Patent: November 19, 2013Assignee: Council of Scientific & Industrial ResearchInventors: Sushil Kumar, Prakash Narain Dixit, Chandra Mohan Singh Rauthan
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Patent number: 8481891Abstract: An ironing system (500) comprises an iron (510) with a soleplate (512) comprising an induction heatable material. The ironing system (500) further comprises a unit (520, 530) that includes at least one induction coil (540) and a device (550). The induction coil (540) charges the iron (510) whereas the device (550) detects the temperature of the soleplate (512) by sensing a change in current flowing through the induction coil (540) or by sensing a change in voltage across the induction coil (540). The current or voltage changes as self inductance of the induction coil (540) changes with magnetic permeability of the soleplate (512) as a function of its temperature. The device (550) switches the induction coil (540) on or off depending on the detected temperature.Type: GrantFiled: September 28, 2007Date of Patent: July 9, 2013Assignee: Koninklijke Philips Electronics N.V.Inventors: Chandra Mohan Janakiraman, Job Jan Van Der Burg, Yong Jiang, Ronald Albert Plantinga
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Publication number: 20120324768Abstract: A steam iron (500) comprises a housing (520) that includes a water tank (580), a steam chamber (600) and a pressure equalization conduit (760). The housing (520) includes an airing means (660). The steam iron is further provided with a mechanism for allowing air selectively into the water tank (580). The mechanism comprises a steam trigger (680) that is arranged to close or open the pressure equalization conduit (760) and the airing means (660) inversely. The mechanism may also comprise a spring loaded plunger or an electronic hand sensor.Type: ApplicationFiled: August 8, 2007Publication date: December 27, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Chandra Mohan Janakiraman, Mohankumar Valiyambath Krishnan, Stein Kuiper
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Patent number: 8266830Abstract: An ironing board for multifunctional use comprising a base (1), a body (5) with a work surface (6), which body has a first longitudinal axis (I-I) and is connected to the base. A column (7) extends between the body and the base, the column having a second longitudinal axis (II-II) and a tilting means. The tilting means is arranged for tilting the body about a tilting axis (T-T) extending substantially perpendicularly to both the first axis and the second axis. A system comprises such an ironing board and an iron for cooperation with the ironing board. The invention further relates to a method for refreshing an article and a method for pressing an article.Type: GrantFiled: June 28, 2006Date of Patent: September 18, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Kok Wah Ma, Derrick Wai Thong Loke, Mong Hua Tan, Mohankumar Valiyambath Mohankumar, Chandra Mohan Janakiraman, Swee Loon Michael Tang, Choon Hwee Tan, Franciscus Jozef Bosman, Martijn Van Baren, Vignesh Nathamuni Balaji, Yong Jiang
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Patent number: 8266829Abstract: A system iron comprises an iron and a base that has a receiving area for receiving the iron. The base comprises a fastening device for fastening the iron to the base. The fastening device includes a first engagement member and a second engagement member arranged at mutually opposite sides of the receiving area. At least one of the engagement members is displaceable in a direction away from the other engagement member and is biased towards the other engagement member. With such a fastening device, a user can safely and conveniently lock the iron to the base using just one of his hands for gripping the main grip portion of the iron.Type: GrantFiled: May 30, 2008Date of Patent: September 18, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Mun Thoh Ma, Chandra Mohan Janakiraman, Ronald Albert Plantinga, L Bouhuys, Wa Chu
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Patent number: 8166681Abstract: A soleplate includes a metallic layer, a non-ferromagnetic layer and a ferromagnetic layer sandwiched between the metallic layer and non-ferromagnetic layer. The soleplate is used in an induction heating-based cordless iron. The electromagnetic field from an induction coil located in a stand, where the iron rests and gets charged, can pass beyond the non-ferromagnetic layer and heat the ferromagnetic layer efficiently. The non-ferromagnetic layer that is forming an ironing plate ensures a uniform heat transfer to the metallic layer for good steaming performance for effective cordless ironing.Type: GrantFiled: May 16, 2007Date of Patent: May 1, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Chandra Mohan Janakiraman, Yong Jiang, Job Van Der Burg
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Publication number: 20120045592Abstract: A plasma based deposition process to deposit thin film on the inner surfaces of the shaped objects such as plastic or metallic object like bottles, hollow tubes etc. at room temperature has been developed. In present invention uniform hydrogenated amorphous carbon (also called Diamond-Like Carbon, DLC) films on inner surfaces of plastic bottles is successfully deposited. Applications of such product include entire food and drug industries. There is a huge demand of polyethylene terephthalate (PET) or polyethylene naphthalate (PEN)) bottles, meant for the storage of potable water, carbonated soft drinks, wines, medicines etc. However, the higher cost prohibits their wide, spread use. The cheaper alternative is to use plastic bottles inside coated with chemically inert material such as Diamond-Like Carbon (DLC) will be commercially viable. Inventor process can be scaled up for mass production.Type: ApplicationFiled: January 27, 2010Publication date: February 23, 2012Inventors: Sushil Kumar, Prakash Narain Dixit, Chandra Mohan Singh Rauthan
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Patent number: 8064594Abstract: There is provided a system for integrating at least one residential Plain Old Telephone System (POTS) phone to a cellular phone network. A Subscriber Line Interface Circuit (SLIC 120) interfaces audio from the cellular phone network to the at least one residential POTS phone. A line switcher (122), connected to the SLIC, connects the at least one residential POTS phone to any one of a POTS line or a cellular line. An audio gateway (116), connected to the SLIC, wirelessly receives the audio from a cellular phone connected to the cellular phone network for subsequent transmission to the at least one residential phone and wirelessly transmits the audio from the POTS line to the cellular phone.Type: GrantFiled: May 12, 2004Date of Patent: November 22, 2011Assignee: Thomson LicensingInventors: Chandra Mohan, Jayanta Majumdar
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Patent number: 7997019Abstract: A steam generating apparatus includes a boiler for receiving water to be heated and an opening in a wall of the boiler. The opening is closable by a closing device. The steam generating apparatus also includes a steam duct for conducting steam generated in the boiler to a steam applying device such as an iron. A by-pass duct for by-passing the steam duct is provided for discharging steam from the boiler to the iron.Type: GrantFiled: January 15, 2007Date of Patent: August 16, 2011Assignee: Koninklijke Philips Electronics N.V.Inventors: Jasmeet Singh Chadha, Chandra Mohan Janakiraman, Tamilselva Thirumazhisai Sankaralingam, Hock Soon Tiew, Boon Khian Ching, Yong Jiang
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Patent number: 7900470Abstract: An icemaker includes a body including an ice mode for receiving water and freezing water to ice. The ice mold has a first side surface, a second side surface and an arcuate bottom surface indisposed between the first side surface and the second side surface. An ice ejector including an ejector member is rotatably connected to the body. The ice ejector defines an axis of rotation. A drive mechanism is operably coupled to the ice ejector. The drive mechanism is configured to reversibly rotate the ice ejector between a first position and a second position. A first cover is fixedly connected to the body for at least partially covering a front portion of the ice mold. A second cover is connected to one of the ice ejector and the body. The second cover is configured to reversibly rotate with the ice ejector between the first position and a third position. The second cover at least partially covers a back portion of the ice mold at the first position.Type: GrantFiled: December 7, 2007Date of Patent: March 8, 2011Assignee: General Electric CompanyInventors: Alexander Pinkus Rafalovich, Chandra Mohan Pendyala
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Patent number: 7861440Abstract: An ironing board includes a base, a body with a work surface and an easy height-adjustment operation to adjust the distance of the body relative to the base. A column extends between the body and the base and is equipped with a stationary frame secured to the base and a moveable frame secured to the body. In order to decrease the force needed to adjust the height of the body relative to the base, the height adjustment device includes device for exerting a repelling force between the body and the base.Type: GrantFiled: June 27, 2006Date of Patent: January 4, 2011Assignee: Koninklijke Philips Electronics N.V.Inventors: Kok Wah Ma, Derrick Wai Thong Loke, Mong Hua Tan, Mohankumar Valiyambath Krishnan, Chandra Mohan Janakiraman, Swee Loon Michael Tang, Choon Hwee Tan
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Patent number: 7856743Abstract: An ironing board (2) that can easily be stored and converted to a stable position for ironing comprises a base (1) having a variable length, and a body (5) with a work surface (6). A column (7) extends between the body and the base. An adjustment mechanism (9) arranges for the base to be shorter in case the work surface is positioned vertically and the base to be longer in case the work surface is positioned horizontally. A system comprises such an ironing board and an iron for cooperation with the ironing board.Type: GrantFiled: June 27, 2006Date of Patent: December 28, 2010Assignee: Koninklijke Philips Electronics N.V.Inventors: Kok Wah Ma, Derrick Wai Thong Loke, Mong Hua Tan, Mohankumar Valiyambath Krishnan, Chandra Mohan Janakiraman, Swee Loon Michael Tang, Choon Hwee Tan
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Publication number: 20100285235Abstract: The present invention provides a process for the preparation of nano structured silicon thin film using radio frequency (rf) plasma discharge useful for light emitting devices such as light emitting diode, laser etc. The present invention shows the possibility of precise control of the nanocrystal size of silicon and its uniform distribution without doping using plasma processing for obtaining efficient photoluminescence at room temperature. Process developed to deposit the photo luminescent nano structured silicon thin films using plasma enhanced chemical vapour deposition technique can find use in electroluminescence devices like light emitting diodes (LEDs), LASER etc. This could also be advantageous for integration of silicon photonic devices with the existing silicon microelectronic technology.Type: ApplicationFiled: June 13, 2008Publication date: November 11, 2010Inventors: Sushil Kumar, Prakash Narain Dixit, Chandra Mohan Singh Rauthan
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Publication number: 20100223820Abstract: The present invention relates to a steam generating apparatus (50) comprising a boiler (52) for receiving water to be heated, an opening (54, 126) in a wall of the boiler, the opening being closable by closing means (56, 128, 136), and a steam duct (58) for conducting steam generated in the boiler (52) to steam applying means (60), wherein a by-pass duct (62, 130) by-passing the steam duct (58) is provided for discharging steam from the boiler (52) to the steam applying means (60). The present invention further relates to a method of operating a steam generating apparatus (50).Type: ApplicationFiled: January 15, 2007Publication date: September 9, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N VInventors: Jasmeet Singh Chadha, Chandra Mohan Janakiraman, Tamilselva Thirumazhisai Sankaralingam, Hock Soon Tiew, Boon Khian Ching, Yong Jiang
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Patent number: 7779564Abstract: A steam ironing system (2) comprises a steam iron (10) and a boiler system (25) having a boiler (30) for generating steam, wherein the steam iron (10) and the boiler (30) are connected to each other through a steam hose (35). During operation of the boiler system (25), scale is formed in the boiler (30). For the purpose of removing the scale from the boiler (30), a rinsing process is performed on the boiler system (25) at regular intervals. During the rinsing process, a rinse valve (38) connected to a water outlet (37) positioned at a bottom of the boiler (30) is opened, and water is discharged from the boiler (30) to a rinse container (55). In the process, scale particles are carried along with the flow of water. Preferably, pressure is built up inside the boiler (30) prior to opening the rinse valve (38), so that the water is forcibly ejected from the boiler (30), whereby the effectiveness of the rinsing process is enhanced.Type: GrantFiled: July 6, 2006Date of Patent: August 24, 2010Assignee: Koninklijke Philips Electronics N.V.Inventors: Mohankumar Valiyambath Krishnan, Swee Loon Michael Tang, Choon Hwee Tan, Mong Hua Tua, Derrick Wai Thong Loke, Kok Wah Ma, Chandra Mohan Janakiraman
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Publication number: 20100199529Abstract: A system iron comprises an iron and a base that has a receiving area for receiving the iron. The base comprises a fastening device for fastening the iron to the base. The fastening device includes a first engagement member and a second engagement member arranged at mutually opposite sides of the receiving area. At least one of the engagement members is displaceable in a direction away from the other engagement member and is biased towards the other engagement member. With such a fastening device, a user can safely and conveniently lock the iron to the base using just one of his hands for gripping the main grip portion of the iron.Type: ApplicationFiled: May 30, 2008Publication date: August 12, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Mun Thoh Ma, Chandra Mohan Janakiraman, Ronald Albert Plantinga, L. Bouhuys, Wa Chu
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Publication number: 20100162596Abstract: An ironing board (2) that can easily be stored and converted to a stable position for ironing comprises a base (1) having a variable length, and a body (5) with a work surface (6). A column (7) extends between the body and the base. An adjustment mechanism (9) arranges for the base to be shorter in case the work surface is positioned vertically and the base to be longer in case the work surface is positioned horizontally. A system comprises such an ironing board and an iron for cooperation with the ironing board.Type: ApplicationFiled: June 27, 2006Publication date: July 1, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Kok Wah Ma, Derrick Wai Thong Loke, Mong Hua Tan, Mohankumar Valiyambath Krishnan, Chandra Mohan Janakiraman, Swee Loon Michael Tang, Choon Hwee Tan
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Publication number: 20100146827Abstract: An ironing board comprises a base (1), a body (5) with a work surface and an easy height-adjustment operation to adjust the distance of the body relative to the base. A column (7) extends between the body and the base and is equipped with a stationary frame (31) secured to the base and a moveable frame (33) secured to the body. In order to decrease the force needed to adjust the height of the body relative to the base the height adjustment means comprises a means for exerting a repelling force between the body and the base. A system comprising such an ironing board and an iron.Type: ApplicationFiled: June 27, 2006Publication date: June 17, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.Inventors: Kok Wah Ma, Derrick Wai Thong Loke, Mong Hua Tan, Mohankumar Valiyambath Krishnan, Chandra Mohan Janakiraman, Swee Loon Michael Tang, Choon Hwee Tan
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Publication number: 20100095565Abstract: An ironing board for multifunctional use comprising a base (1), a body (5) with a work surface (6), which body has a first longitudinal axis (I-I) and is connected to the base. A column (7) extends between the body and the base, the column having a second longitudinal axis (II-II) and a tilting means. The tilting means is arranged for tilting the body about a tilting axis (T-T) extending substantially perpendicularly to both the first axis and the second axis. A system comprises such an ironing board and an iron for cooperation with the ironing board. The invention further relates to a method for refreshing an article and a method for pressing an article.Type: ApplicationFiled: June 28, 2006Publication date: April 22, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Kok Wah Ma, Derrick Wai Thong Loke, Mong Hua Tan, Mohankumar Valiyambath Mohankumar, Chandra Mohan Janakiraman, Swee Loon Michael Tang, Choon Hwee Tan, Franciscus Josef Bosman, Martijn Van Baren, Vignesh Nathamuni Balaji, Yong Jiang