Patents by Inventor Sam Tsai
Sam Tsai 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: 9805331Abstract: A method of tracking an inventory of objects via a mobile communications device includes acquiring an image of one or more of the objects via the mobile communications device, which also collects a location of the mobile communications device while acquiring the image of the one or more of the objects. The location and image are transferred from the mobile communications device to a remote server via a wireless network, such that the one or more of the objects are identified at the server based on the image, and the location and identity of the one or more objects are stored on a database associated with the server.Type: GrantFiled: February 9, 2011Date of Patent: October 31, 2017Assignees: DEUTSCHE TELEKOM AG, THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITYInventors: Cheng-Hsin Hsu, Kyu-Han Kim, Jatinder Pal Singh, David M. Chen, Sam Tsai, Bernd Girod
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Patent number: 8971146Abstract: In one embodiment, a memory includes a plurality of bit lines and a write driver for driving a driven bit line selected from the plurality of bit lines during a write operation. The write driver is coupled to an internal node. A first stage clamping circuit is operable to clamp the internal node to a clamping voltage if the write operation is not enabled and is further operable to unclamp the internal node during the write operation. The memory further includes a multiplexer for selectively coupling the driven bit line to the internal node. A second stage clamping circuit is operable to clamp the plurality of bit lines to a clamping voltage if the write operation is not enabled and is further operable to unclamp the driven bit line during the write operation.Type: GrantFiled: May 24, 2013Date of Patent: March 3, 2015Assignee: Lattice Semiconductor CorporationInventors: Brad Sharpe-Geisler, Timothy Scott Swensen, Sam Tsai, Fabiano Fontana
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Publication number: 20130258761Abstract: In one embodiment, a memory includes a plurality of bit lines and a write driver for driving a driven bit line selected from the plurality of bit lines during a write operation. The write driver is coupled to an internal node. A first stage clamping circuit is operable to clamp the internal node to a clamping voltage if the write operation is not enabled and is further operable to unclamp the internal node during the write operation. The memory further includes a multiplexer for selectively coupling the driven bit line to the internal node. A second stage clamping circuit is operable to clamp the plurality of bit lines to a clamping voltage if the write operation is not enabled and is further operable to unclamp the driven bit line during the write operation.Type: ApplicationFiled: May 24, 2013Publication date: October 3, 2013Applicant: Lattice Semiconductor CorporationInventors: Brad Sharpe-Geisler, Timothy Scott Swensen, Sam Tsai, Fabiano Fontana
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Patent number: 8451679Abstract: In one embodiment, a memory is provided that includes: a write driver for selectively driving a driven pair of bit lines selected from a plurality of bit line pairs during a write operation; a first stage clamping circuit operable to clamp a pair of internal nodes to a clamping voltage, wherein the first stage clamping circuit is further operable to unclamp the pair of internal nodes during the write operation; a bit line multiplexer for selectively coupling the driven bit line pair to the pair of internal nodes; and a second stage clamping circuit operable to clamp the plurality of bit line pairs to the clamping voltage, wherein the second stage clamping circuit is further operable to unclamp the driven bit line pair during the write operation.Type: GrantFiled: August 17, 2011Date of Patent: May 28, 2013Assignee: Lattice Semiconductor CorporationInventors: Brad Sharpe-Geisler, Timothy Scott Swensen, Sam Tsai, Fabiano Fontana
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Publication number: 20120202515Abstract: A method of tracking an inventory of objects via a mobile communications device includes acquiring an image of one or more of the objects via the mobile communications device, which also collects a location of the mobile communications device while acquiring the image of the one or more of the objects. The location and image are transferred from the mobile communications device to a remote server via a wireless network, such that the one or more of the objects are identified at the server based on the image, and the location and identity of the one or more objects are stored on a database associated with the server.Type: ApplicationFiled: February 9, 2011Publication date: August 9, 2012Applicants: STANFORD UNIVERSITY, DEUTSCHE TELEKOM AGInventors: Cheng-Hsin Hsu, Kyu-Han Kim, Jatinder Pal Singh, David M. Chen, Sam Tsai, Bernd Girod
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Patent number: 8171592Abstract: The present invention relates to a steam cleaner that is light-weight and is prepared for operation quickly and easily and comprises handle assembly, a pivoting connector, a reservoir, a reservoir socket, a steam head and an electric wire. The handle assembly comprises a grip and a lever. The pole connector is attached to the steam head. The reservoir is mounted detachably in the reservoir socket and is easily removed to fill the reservoir with tap water. Squeezing the handle assembly releases water from the reservoir into the steam head where steam is generated to clean a floor.Type: GrantFiled: September 3, 2008Date of Patent: May 8, 2012Inventor: Sam Tsai
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Patent number: 7695153Abstract: The present invention is an umbrella light with an audio module, including a hosing, at least two fastener, at least two turned lights, an audio module and a control module. The fastener provides a better gripper structure with a torsional spring, and the audio module can be arranged with external audio source, which provides people with wonderful melody.Type: GrantFiled: February 5, 2008Date of Patent: April 13, 2010Inventor: Sam Tsai
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Patent number: 7697611Abstract: A method for processing video image is provided to perform a motion vector filtering process on the image after being processed by a motion estimation process. The motion vector filtering process adjusts the motion vectors derived for each block in a video sequence, so that the motion vector of each block and the actual moving direction of the corresponding object in the image tend to conformity. Then, the blocks with similar motion vectors are merged and blocks with radical motion vectors are corrected, thereby reducing distortion of the output image and the number of bits used to represent the motion information, which in turns increases the efficiency of compression process.Type: GrantFiled: December 29, 2004Date of Patent: April 13, 2010Assignee: Industrial Technology Research InstituteInventors: Chia-Yang Tsai, S. Sam Tsai, Hsueh-Maing Hang, Ti-Hao Chiang, Guo-Zua Wu
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Publication number: 20100050367Abstract: The present invention relates to a steam cleaner that is light-weight and is prepared for operation quickly and easily and comprises handle assembly, a pivoting connector, a reservoir, a reservoir socket, a steam head and an electric wire. The handle assembly comprises a grip and a lever. The pivoting connector is attached to the steam head. The reservoir is mounted detachably in the pivoting connector and is easily removed to fill the reservoir with tap water. Squeezing the handle assembly releases water from the reservoir into the steam head where steam is generated to clean a floor.Type: ApplicationFiled: September 3, 2008Publication date: March 4, 2010Inventor: Sam TSAI
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Publication number: 20090196020Abstract: The present invention is an umbrella light with an audio module, including a hosing, at least two fastener, at least two turned lights, an audio module and a control module. The fastener provides a better gripper structure with a torsional spring, and the audio module can be arranged with external audio source, which provides people with wonderful melody.Type: ApplicationFiled: February 5, 2008Publication date: August 6, 2009Inventor: Sam TSAI
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Publication number: 20090183333Abstract: A vacuum dust collector comprising a housing including a concaved space inside and a control knob on the top; an suction generator placed under the concaved space; a bottom cover, covered at the bottom of the housing, including a dust inlet and at least one sensor; and a dust container, disposed in the concaved space, including a cover, a chamber, a filter, an outlet pipe, an inlet pipe, and a latch. Moreover, the shape of the housing is corresponding to the place where it is located, and the latch is pressed by the filter disposed on the outlet pipe of dust container to allow the cover to be eclipsed on the chamber.Type: ApplicationFiled: January 17, 2008Publication date: July 23, 2009Inventor: Sam TSAI
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Patent number: 7539076Abstract: Systems and methods disclosed herein provide for variable data width memory. For example, in accordance with an embodiment of the present invention, a technique for doubling a width of a memory is disclosed, without having to increase a width of the internal data path or the number of input/output pads.Type: GrantFiled: October 1, 2007Date of Patent: May 26, 2009Assignee: Lattice Semiconductor CorporationInventors: Hemanshu Vernenker, Margaret Tait, Christopher Hume, Nhon Nguyen, Allen White, Tim Swensen, Sam Tsai, Steve Eplett
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Publication number: 20080158863Abstract: The electrical candle with micro-control means comprising a main body and a base body. The main body includes a shell and a circuit module, and the shell including a flame-shaped cover member and a plurality of holes. The circuit module, inside the shell, includes an illuminant and a micro switch. The base body includes a hollow to contain the main body. The characteristic is that the electrical candle turned on and off by an external force which actuates the micro switch to control power supply. The external force could be airflow-control, voice-control and vibrating so that it is easy for users to utilize the electrical candle. Therefore, the present invention provides a new and improved electrical candle for people to use with more convenience.Type: ApplicationFiled: December 28, 2006Publication date: July 3, 2008Inventor: Sam Tsai
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Patent number: 7307912Abstract: Systems and methods disclosed herein provide for variable data width memory. For example, in accordance with an embodiment of the present invention, a technique for doubling a width of a memory is disclosed, without having to increase a width of the internal data path or the number of input/output pads.Type: GrantFiled: October 25, 2004Date of Patent: December 11, 2007Assignee: Lattice Semiconductor CorporationInventors: Hemanshu T. Vernenker, Margaret C. Tait, Christopher Hume, Nhon Nguyen, Allen White, Tim Swensen, Sam Tsai, Steve Eplett
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Patent number: 7266292Abstract: A structure of steam swab comprises a rod assemblage and a base assemblage. The rod assemblage comprises a handle, a first sleeve, a second sleeve, a third sleeve, and a water tank. With a fastener set at the end, the handle and the two ends of each of the first, the second, and the third sleeves can be easily assembled to the rod assemblage. The second sleeve comprises a tank fastener base and a tank fastener ring to fasten the water tank. The base assemblage comprises a triangular lid, a steam chamber body, and a base. The triangular lid comprises a pivot connector, which can pivotally connect to the rod assemblage. An appropriate concave is set in each angle of the triangular lid to fix with a spring and a clamp. The steam chamber body and a power control unit are set in the base, and the triangular lid covers on the base to assemble the base assemblage. The base assemblage connects to the rod assemblage via the pivot connector to assemble the steam swab.Type: GrantFiled: November 8, 2004Date of Patent: September 4, 2007Inventor: Sam Tsai
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Publication number: 20070074358Abstract: A motorized broom includes a handle, a universal connector, and a cleaning portion. The universal connector is used for connecting the handle and the cleaning portion. Thus, the universal connector together with the handle is rotatable relative to the cleaning portion universally, so that the cleaning portion is angle adjustable so as to clean the corner of the house exactly. In addition, the dust collector is removably mounted on the main base, so that the dust collector can be removed from the main base easily and rapidly, thereby facilitating a user removing the dust collector.Type: ApplicationFiled: October 4, 2005Publication date: April 5, 2007Inventor: Sam Tsai
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Patent number: 7149129Abstract: Systems and methods provide output data from a memory. For example, in accordance with an embodiment of the present invention, techniques are disclosed for providing glitch-free output data from a memory through feedback of the output data signal.Type: GrantFiled: October 25, 2004Date of Patent: December 12, 2006Assignee: Lattice Semiconductor CorporationInventors: Hemanshu T. Vernenker, Margaret C. Tait, Christopher Hume, Allen White, Tim Swensen, Sam Tsai, Steve Eplett
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Publication number: 20060241534Abstract: The present invention relates to an electric thermal waist belt, which comprises a plurality of layers of belt sheaths made of a polyvinyl chloride (PVC), at least two lining pads made of a flameproof polyurethane (PU) foam, a fastener, a power switch, and an electrothermal layer comprising a circuit of heating wire and at least two multi-apertured surfaces, wherein the circuit of heating wire is placed in between the two multi-apertured surfaces forming a double layers structure and connect to the power switch, a inner part of on of the lining pad comprises a foil, the other lining pad comprises a plurality of side pads. The lining pads cover the electrothermal layer and are placed in between the belt sheaths, sewing the belt sheaths produces an electric thermal waist belt performing a proper temperature between 35˜60° C. for health.Type: ApplicationFiled: April 20, 2005Publication date: October 26, 2006Inventor: Sam Tsai
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Publication number: 20060087897Abstract: Systems and methods provide output data from a memory. For example, in accordance with an embodiment of the present invention, techniques are disclosed for providing glitch-free output data from a memory through feedback of the output data signal.Type: ApplicationFiled: October 25, 2004Publication date: April 27, 2006Inventors: Hemanshu Vernenker, Margaret Tait, Christopher Hume, Allen White, Tim Swensen, Sam Tsai, Steve Eplett
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Patent number: D574990Type: GrantFiled: February 1, 2008Date of Patent: August 12, 2008Inventor: Sam Tsai