Su, San Diego
Ching-Yuan Su, San Diego, CA US
Patent application number | Description | Published |
---|---|---|
20100197784 | NOVEL CURCUMIN ANALOGUES AND USES THEREOF - The present invention relates to compounds capable of acting as androgen receptor antagonists, pharmaceutical formulations containing the same, and methods of use thereof. Such uses include, but are not limited to, use as antitumor agents, particularly for the treatment of cancers such as colon, skin and prostate cancer and to induce androgen receptor antagonist activity in a subject afflicted with an androgen-related affliction. Examples of androgen-related afflictions include, but are not limited to, baldness, hirsutism, behavioral disorders, acne, and uninhibited spermatogenesis wherein inhibition of spermatogenesis is so desired. | 08-05-2010 |
20130261121 | Compounds with (1E, 6E)-1,7-bis-(3,4-dimethoxyphenyl)-4,4-disubstituted-hepta-1,6-diene-3,5-d- ione structural scaffold, their biological activity, and uses thereof - The present invention includes compounds, pharmaceuticals and cosmetics having at least one (substituted phenyl)-propenal moiety. The compounds and compositions of the present invention are useful in the treatment or prevention of medical conditions including androgen associated conditions, androgen associated inflammation, a wound (the compounds assist with wound healing), acne, rheumatoid arthritis, psoriasis, rosacea, and alopecia; Kennedy's disease (spinal and bulbar muscular atrophy, or SBMA), polyglutamine-mediated motor neuron degeneration; cancers such as prostate cancer, bladder cancer, breast cancer, ovarian cancer, hepatocellular (liver) cancer, and pancreatic cancer; and other medical conditions described herein. Treatment of such medical conditions includes administering to an individual suffering from a medical condition describe herein, a therapeutically effective amount of any of the disclosed compounds, their derivatives, or pharmaceutical compositions thereof. | 10-03-2013 |
Pengcheng Su, San Diego, CA US
Patent application number | Description | Published |
---|---|---|
20090296836 | CHANNEL ESTIMATION METHODS AND APPARATUS UTILIZING THE SAME - A channel estimation device and method for an orthogonal frequency division multiplexing (OFDM) system for receiving OFDM symbols to generate channel estimation information is provided. The channel estimation method includes: obtaining a portion of pilot signals from a plurality of pilot signals as a first pilot set according to corresponding positions of the pilot signals in the OFDM symbols; estimating a first estimation factor by calculating the pilot signals in the first pilot set in a first direction; estimating a second estimation factor by calculating the pilot signals in the first pilot set in a second direction; obtaining a pilot signal estimation result according to the first estimation factor and the second estimation factor; and obtaining the channel estimation information according to the pilot signal estimation result. | 12-03-2009 |
Ted Su, San Diego, CA US
Patent application number | Description | Published |
---|---|---|
20100082082 | High-Strength Microwave Antenna Assemblies - Various high-strength microwave antenna assemblies are described herein. The microwave antenna has a radiating portion connected by a feedline to a power generating source, e.g., a generator. The antenna is a dipole antenna with the distal end of the radiating portion being tapered and terminating at a tip to allow for direct insertion into tissue. Antenna rigidity comes from placing distal and proximal radiating portions in a pre-stressed state, assembling them via threaded or overlapping joints, or fixedly attaching an inner conductor to the distal portion. The inner conductor is affixed to the distal portion by, e.g., welding, brazing, soldering, or by adhesives. A junction member made from a hard dielectric material, e.g., ceramic, can be placed between the two portions and can have uniform or non-uniform shapes to accommodate varying antenna designs. Electrical chokes may also be used to contain returning currents to the distal end of the antenna. | 04-01-2010 |
Wenjun Su, San Diego, CA US
Patent application number | Description | Published |
---|---|---|
20090315621 | AMPLIFIER WITH GAIN EXPANSION STAGE - Techniques are disclosed for extending an amplifier's linear operating range by concatenating an amplifier exhibiting gain compression with a gain expansion stage. In an exemplary embodiment, a gain expansion stage incorporates a Class-B stage, a Class-AB stage, or a combination of the two. In an exemplary embodiment, both the gain compression stage and gain expansion stage are provided with a replica current biasing scheme to ensure stable biasing current over variations in temperature, process, and/or supply voltage. Further disclosed is an output voltage biasing scheme to set the DC output voltage to ensure maximum linear operating range. | 12-24-2009 |
20100130144 | TECHNIQUES FOR IMPROVING TRANSMITTER PERFORMANCE - Exemplary embodiment are directed to preserving transmitter linearity in RF transceivers while reducing RX band noise for use with low-power voltage supplies. In one aspect, a programmable attenuation element may be provided on-chip at the output of a driver amplifier, prior to a matching network. In another aspect, the programmable attenuation element may include a plurality of switchable capacitors. | 05-27-2010 |
20110043956 | PROTECTION CIRCUIT FOR POWER AMPLIFIER - Techniques for protecting a power amplifier (PA) are described. In an exemplary design, an apparatus includes (i) a PA module to amplify an input RF signal and provide an output RF signal and (ii) a protection circuit to control a transmitter gain to protect the PA module against high peak voltage. In an exemplary design, the protection circuit includes a set of comparators to quantize an analog input signal and provide digital comparator output signals used to adjust the transmitter gain. In another exemplary design, the protection circuit reduces and increases the transmitter gain with hysteresis. In yet another exemplary design, the protection circuit has faster response to rising amplitude than falling amplitude of the output RF signal. The hysteresis and/or the different rise and fall responses may allow the protection circuit to avoid toggling the transmitter gain under severe load mismatch and to handle time-varying envelope due to amplitude modulation. | 02-24-2011 |
20110050285 | HIGH LINEAR FAST PEAK DETECTOR - A high linear fast peak detector having a variable bias current and/or a variable bias voltage is described. In an exemplary design, the peak detector includes a transistor, a variable current source, a capacitor, and a feedback circuit. The transistor receives the input signal and provides a source current. The variable current source receives the input signal, provides high bias current when the input signal is low, and provides low bias current when the input signal is high. The capacitor is charged by the source current when the input signal is high and is discharged by the high bias current when the input signal is low. The feedback circuit receives a detected signal from the capacitor and provides higher bias voltage for the transistor when the input signal is high, which results in higher source current from the transistor. | 03-03-2011 |
20140043102 | MULTI-CASCODE AMPLIFIER BIAS TECHNIQUES - Techniques for generating bias voltages for a multi-cascode amplifier. In an aspect, a multi-cascode bias network is provided, each transistor in the bias network being a replica of a corresponding transistor in the multi-cascode amplifier, enabling accurate biasing of the transistors in the multi-cascode amplifier. In another aspect, a voltage supply for the multi-cascode amplifier is provided separately from a voltage supply for the replica bias network, to advantageously decouple variations in the amplifier voltage supply from the bias network voltage supply. In yet another aspect, the bias voltages of transistors in the multi-cascode amplifier may be configured by adjusting the impedance of resistive voltage dividers coupled to the transistor gate biases. As the gain of the amplifier depends on the bias voltages of the cascode amplifiers, the gain of the amplifier may be adjusted in this manner without introducing a variable gain element directly in the amplifier signal path. | 02-13-2014 |
Xiaomeng Su, San Diego, CA US
Patent application number | Description | Published |
---|---|---|
20100259457 | MULTI-FREQUENCY, NOISE OPTIMIZED ACTIVE ANTENNA - A multi-frequency, noise optimized active antenna consisting of one or several actively tuned antennas optimized over incremental bandwidths and capable of tuning over a large total bandwidth. One or multiple impedance transformers are connected to the antennas at an optimal location, with the transformers acting to reduce the impedance for optimal coupling to a transceiver/receiver. Active components can be incorporated into the antenna structures to provide yet additional extension of the bandwidth along with increased optimization of antenna performance over the frequency range of the antenna. The radiating elements can be co-located with a ferrite material and/or active components coupled to the element to tune across a wide frequency range. | 10-14-2010 |
20100283691 | SPATIAL FILTER FOR NEAR FIELD MODIFICATION IN A WIRELESS COMMUNICATION DEVICE - A spatial filter is developed for specific absorption rate (SAR) reduction in a wireless device. A conductive element is designed to modify the near field distribution of an antenna operating in a wireless device. This reduces SAR while minimizing degradation of antenna efficiency at one or several frequency bands that the antenna is designed to operate over. Lumped reactance can be designed into the conductive element to generate low pass, band pass, and/or high pass frequency characteristics. Distributed reactance can be designed into the conductive element to replace or to work in conjunction with the lumped reactance. Active components can be designed into the conductive element to provide dynamic tuning of the frequency response of the conductive element. | 11-11-2010 |
20140162719 | Two Antennas in Close Proximity with Signal Isolation - Included is a mobile node (MN) comprising a first antenna configured to communicate with a wireless network, a second antenna configured to communicate with a wireless network, a first data line coupled to the first antenna, a second data line coupled to the second antenna, and a common ground trace coupled to the first data line and the second data line, wherein the first antenna and the second antenna are not directly connected to the common ground. | 06-12-2014 |
Ying Su, San Diego, CA US
Patent application number | Description | Published |
---|---|---|
20090118135 | METHODS AND COMPOUNDS FOR REGULATING APOPTOSIS - An assay for determining compounds that inhibit activity of a BCl-2 protein, or affect conversion of Bcl-2 from an antiapoptotic to a proapoptotic form are described. In addition, compounds that modulate the function of anti-apoptotic proteins such as Bcl-2 and related Bcl-2 family members are identified. | 05-07-2009 |