Patents by Inventor Danny Li
Danny Li 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: 20240148750Abstract: Prostamide-containing biodegradable intraocular implants, prostamide compounds, prostamide-containing pharmaceutical compositions, and methods for making and using such implants and compositions for the immediate and sustained reduction of intraocular pressure and treatment of glaucoma in an eye of a patient are described.Type: ApplicationFiled: May 15, 2023Publication date: May 9, 2024Inventors: Patrick M. Hughes, Jie Shen, Michael R. Robinson, David F. Woodward, Robert M. Burk, Hui Li, Jinping Wan, Chandrasekar Durairaj, Gyorgy F. Ambrus, Ke Wu, Danny T. Dinh
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Publication number: 20240137154Abstract: A station (STA) configured for operation in a WLAN may perform bit scrambling on input bits to generate scrambled input bits and may perform probabilistic constellation shaping using a shaping encoder on the scrambled input bits. The shaping encoder may encode a segment of the scrambled input bits for a modulation order and generate a shaped bit stream. In these embodiments, the STA may generate a QAM symbol stream with a QAM modulator. The QAM symbol stream may be generated at least from the shaped bit stream and from parity bits using the modulation order. The STA may generate the parity bits from the shaped bit streams with a forward-error correction (FEC) encoder and may transmit the QAM symbol stream within a physical layer protocol data unit (PPDU). To address a potential byte boundary shift caused a decoding error at a receiving station, the STA may modify performance of the bit scrambling when probabilistic constellation shaping is performed.Type: ApplicationFiled: December 29, 2023Publication date: April 25, 2024Inventors: Qinghua Li, Hao Song, Danny Alexander, Shlomi Vituri, Assaf Gurevitz, Robert J. Stacey
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Publication number: 20240129174Abstract: A station (STA) configured for operation in a wireless local area network (WLAN) may implement an unequal Modulation and Coding Scheme (MCS) for Probabilistic Constellation Shaping using first and second shaping encoders. The first shaping encoder may encode a first segment of input bits for a first modulation order and generate a first shaped bit stream and the second shaping encoder may encode a second segment of input bits for a second modulation order to generate a second shaped bit stream. A first QAM symbol stream may be generated at least from the first shaped bit stream and from parity bits using the first modulation order and a second QAM symbol stream may be generated at least from the second shaped bit stream and from parity bits using the second modulation order. The STA may generate the parity bits from the first and second shaped bit streams with one or more LDPC encoders and may transmit the first and second QAM symbol streams within a PPDU.Type: ApplicationFiled: December 27, 2023Publication date: April 18, 2024Inventors: Qinghua Li, Hao Song, Juan Fang, Shlomi Vituri, Assaf Gurevitz, Danny Alexander, Robert J. Stacey
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Patent number: 8228124Abstract: A class G headphone amplifier circuit with improved power efficiency and low EMI. It may use an automatic signal level detector to detect the signal level of incoming signals and determine positive and negative power supplies for headphone amplifiers accordingly. A voltage generator may generate pairs of differential output voltages at a plurality of amplitude steps, and supply to headphone amplifiers the pair with the amplitude determined by the automatic signal level detector. As a result, headphone amplifiers are biased according to the input signal level, and the multiple voltage rails may improve power efficiency and avoid clipping.Type: GrantFiled: January 3, 2011Date of Patent: July 24, 2012Assignee: Analog Devices, Inc.Inventors: Jinghua Ye, Hui Shen, Danny Li
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Publication number: 20110095829Abstract: A class G headphone amplifier circuit with improved power efficiency and low EMI. It may use an automatic signal level detector to detect the signal level of incoming signals and determine positive and negative power supplies for headphone amplifiers accordingly. A voltage generator may generate pairs of differential output voltages at a plurality of amplitude steps, and supply to headphone amplifiers the pair with the amplitude determined by the automatic signal level detector. As a result, headphone amplifiers are biased according to the input signal level, and the multiple voltage rails may improve power efficiency and avoid clipping.Type: ApplicationFiled: January 3, 2011Publication date: April 28, 2011Applicant: ANALOG DEVICES, INC.Inventors: Jinghua YE, Hui SHEN, Danny LI
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Patent number: 7880548Abstract: A class G headphone amplifier circuit with improved power efficiency and low EMI. It may use an automatic signal level detector to detect the signal level of incoming signals and determine positive and negative power supplies for headphone amplifiers accordingly. A voltage generator may generate pairs of differential output voltages at a plurality of amplitude steps, and supply to headphone amplifiers the pair with the amplitude determined by the automatic signal level detector. As a result, headphone amplifiers are biased according to the input signal level, and the multiple voltage rails may improve power efficiency and avoid clipping.Type: GrantFiled: October 21, 2008Date of Patent: February 1, 2011Assignee: Analog Devices, Inc.Inventors: Jinghua Ye, Hui Shen, Danny Li
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Publication number: 20100097148Abstract: A class G headphone amplifier circuit with improved power efficiency and low EMI. It may use an automatic signal level detector to detect the signal level of incoming signals and determine positive and negative power supplies for headphone amplifiers accordingly. A voltage generator may generate pairs of differential output voltages at a plurality of amplitude steps, and supply to headphone amplifiers the pair with the amplitude determined by the automatic signal level detector. As a result, headphone amplifiers are biased according to the input signal level, and the multiple voltage rails may improve power efficiency and avoid clipping.Type: ApplicationFiled: October 21, 2008Publication date: April 22, 2010Applicant: ANALOG DEVICES, INC.Inventors: Jinghua Ye, Hui Shen, Danny Li
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Publication number: 20100058534Abstract: There is herein described a single handle pressure balancing spool valve for mixing user-adjustable hot and cold water flow to a fixture such as a shower or tub and to adjust the rate of mixed water flow. A rotatable disc with hot and cold intake openings and an outlet opening are provided which control the degree of covering on the inlet ports of the valve. Pressure balancing of inlet pressure is provided within the valve by means of a piston-cylinder assembly to compensate for fluctuations in water inlet pressure to avoid scalding of the user.Type: ApplicationFiled: September 9, 2008Publication date: March 11, 2010Inventors: Robert Martin, Danny Li
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Patent number: 5705432Abstract: A unique photoresist process is provided which achieves clean and complete lift-off of a thin film layer such as a sputtered thin film formed on a photoresist which is formed above a semiconductor substrate. The process of the present invention relies on a reentrant photoresist profile which breaks the continuity of the thin film layer. Accordingly, the process of the present invention ensures a clean lift-off. The desired photoresist profile which breaks the continuity of the thin film layer can be obtained by a typical photoresist process preceded by an oxidation process that takes place on the surface of the semiconductor substrate. The oxidation process provides a thin native oxide layer with thickness ranging from about 30 to 50 .ANG.. No extra processing steps involving dielectric film deposition and etch are required to achieve clean lift-off. Nevertheless, the process of the present invention ensures the clean lift-off of the thin film layer.Type: GrantFiled: December 1, 1995Date of Patent: January 6, 1998Assignee: Hughes Aircraft CompanyInventors: Kusol Lee, Tom Quach, Danny Li, Liping D. Hou, Sam Chung, Tom Y. Chi
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Patent number: 5556797Abstract: A method of fabricating a self-aligned double gate recess profile in a semiconductor substrate is disclosed in which a first mask layer is formed over the substrate. A second mask layer having an opening is formed over the first mask layer. An opening at least as wide as the second mask layer's opening is formed through the first mask layer to expose the substrate beneath the second mask layer's opening. A first recess is etched in the semiconductor through the second mask layer's opening. The first mask layer's opening is then uniformly expanded and a wider recess, aligned to the first recess, is then formed in the semiconductor. The method is particularly applicable to the formation of self-aligned gate and channel recesses in a GaAs MESFET.Type: GrantFiled: May 30, 1995Date of Patent: September 17, 1996Assignee: Hughes Aircraft CompanyInventors: Tom Y. Chi, Liping D. Hou, Kusol Lee, Danny Li, Ishver K. Naik, Tom Quach
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Patent number: 5436201Abstract: A semiconductor substrate is etched in a two-step sequence, with two different liquid etchants that have different lateral etch rates. The relative time periods for which the etchants are applied are selected to achieve a close match between the actual etch profile and the desired profile. The process is particularly applicable to the formation of a gate recess in a GaAs MESFET for high power amplification.Type: GrantFiled: May 28, 1993Date of Patent: July 25, 1995Assignee: Hughes Aircraft CompanyInventors: Tom Y. Chi, Danny Li, Liping Hou, Tom Quach
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Patent number: D871341Type: GrantFiled: March 16, 2018Date of Patent: December 31, 2019Assignee: JACOB JENSEN DESIGN A/SInventors: Timothy Jacob Jensen, Marina Lothigius, Danny Li, Maarten Sietzema
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Patent number: D883247Type: GrantFiled: June 11, 2018Date of Patent: May 5, 2020Assignee: JACOB JENSEN DESIGN A/SInventors: Timothy Jacob Jensen, Danny Li, Marina Lothigius, Maarten Sietzema
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Patent number: D892056Type: GrantFiled: March 16, 2018Date of Patent: August 4, 2020Assignee: JACOB JENSEN DESIGN A/SInventors: Timothy Jacob Jensen, Marina Lothigius, Danny Li, Maarten Sietzema
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Patent number: D902210Type: GrantFiled: June 11, 2018Date of Patent: November 17, 2020Assignee: JACOB JENSEN DESIGN A/SInventors: Timothy Jacob Jensen, Danny Li, Marina Lothigius
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Patent number: D911288Type: GrantFiled: March 16, 2018Date of Patent: February 23, 2021Assignee: JACOB JENSEN DESIGN A/SInventors: Timothy Jacob Jensen, Marina Lothigius, Danny Li, Maarten Sietzema