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Ghosh, TX
Arunabha Ghosh, Austin, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090074115 | Soft Bit Viterbi Equalizer Using Partially Collapsed Metrics - A system and method of decoding data are provided. A particular method includes determining a first partially collapsed metric value for each bit in a symbol transition, where each first partially collapsed metric value is a cumulative metric of starting in a first state and ending in a second state in L transitions. The first partially collapsed metric value is equal to the cumulative metric value for each of the states plus first minimum sum of branch metric values. | 03-19-2009 |
| 20090274252 | Delay Restricted Channel Estimation for Multi-Carrier Systems - A method is disclosed that includes channel estimation for a multi-carrier modulation of a plurality of subcarriers. The method includes performing a first channel estimation to obtain a first estimate of a channel based on a received signal. The method further includes suppressing a portion of elements of the first estimate of the channel to obtain a suppressed estimate of the channel. The method also includes multiplying the suppressed estimate of the channel by a first matrix to obtain a delay restricted estimate of the channel. | 11-05-2009 |
| 20100173650 | METHOD AND APPARATUS FOR LOCATING MULTIMODE COMMUNICATION DEVICES - A location services controller ( | 07-08-2010 |
| 20110243284 | Delay Restricted Channel Estimation for Multi-Carrier Systems - A method includes performing a channel estimation to obtain an estimate of the channel based on a received signal. A subset of elements of the estimate are suppressed to obtain a suppressed estimate of the channel. The method includes multiplying the suppressed estimate of the channel by a matrix to obtain a delay restricted estimate of the channel. | 10-06-2011 |
Arunhaba Ghosh, Austin, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090058728 | INTERFERENCE CANCELLATION AND RECEIVE DIVERSITY FOR SINGLE-VALUED MODULATION RECEIVERS - A combined SAIC receiver and a multiple-antenna, receive diversity receiver are employed to reduce interference in a wireless system. The real and imaginary parts of the de-rotated signal for each receive path associated with an antenna are separately filtered and a combined output signal of all receive paths is generated. The weighting coefficients are adjusted based on an error signal produced by comparing the combined output signal with a reference signal. The weighting coefficients are initially set based on an MMSE/LS type of signal processing criteria, where the reference signal is the Training Sequence Code (TSC). Subsequent adjustment/tracking can be accomplished by using known tracking algorithms, e.g. LMS or RLS, or the coefficients can be re-computed using MMSE/LS processing. The reference signal for tracking may be a combination of the TSC and estimated data symbols provided by an equalizer. | 03-05-2009 |
Atish Ghosh, Austin, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090106474 | Multi-Host USB Device - A USB device may be simultaneously configured and accessed by two or more USB hosts. The USB device may include separate upstream ports and buffers for each host, and a multi-host capable device controller configured to respond to simultaneous USB requests received from more than one host. The USB device may maintain a dedicated address, configuration, and response information for each host. The USB device may include a shared USB function block, and a multi-host controller configured to establish concurrent respective USB connections between the shared USB function block and two or more USB hosts, to allow the two or more USB hosts to simultaneously configure the USB device for the shared USB function. The multi-host controller may be configured to receive and respond to simultaneous respective USB access requests for the shared USB function sent by the two or more USB hosts. | 04-23-2009 |
| 20100191984 | Single Pin Port Power Control - A power controller for a peripheral bus interface. A peripheral bus power controller includes a first terminal, a second terminal coupled to receive an power enable input signal from a host controller, and a third terminal coupled to provide an over-current output signal indicative of an over-current condition to the host controller. The peripheral bus power controller further includes an enable circuit configured to assert a power enable output signal on the first terminal responsive to receiving the power enable input signal and a first buffer configured to provide the over-current output signal to the host controller responsive to the power controller detecting the over-current condition on the first terminal. | 07-29-2010 |
Diptendu Ghosh, Austin, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20110057732 | LOW PHASE NOISE VOLTAGE CONTROLLED OSCILLATOR - Embodiments of the present invention include a low phase noise oscillator circuit using a current-reuse technique to reduce power consumption and improve phase noise, where the oscillator circuit comprises a first VCO coupled to a second VCO, and the outputs of the first and second VCOs are coupled with passive elements, such as capacitors. The overall power consumption of both the first and second VCOs is about the same as a single VCO. Furthermore, the phase noise is lowered by around 3 dB. Thus, the phase noise performance is improved without increasing the power consumption of the oscillator circuit | 03-10-2011 |
| 20110304373 | LOW VOLTAGE HIGH-SPEED WAVE SHAPING CIRCUITRY - Within hard disk drives (HDDs), for example, a preamplifier or preamp is generally used to perform read and write operations with a magnetic head. Typically, for write operations, the preamplifier generates a current waveform that uses a DC current to polarize magnetic elements within the disk and overshoot components to compensate for frequency dependent attenuation in the interconnect between the head and preamp. Conventional pulse-shaping circuitry used for this application uses high voltage to accomplish this task. Here, however, pulse-shaping circuitry is provided which can generate a similar waveform using lower voltage (i.e., about 5V) for this application and others. | 12-15-2011 |
Kaushik Ghosh, Austin, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090122933 | Information Handling System Including Adaptive Interference Suppression Feature And Method Of Operation - An information handling system includes a wireless device and interference suppression apparatus that adapts to the different interference problems experienced by the wireless device when the system changes from one operating mode or state to another. The interference suppression apparatus includes a controller that instructs an adaptive filter with respect to the appropriate filter characteristics to employ to suppress interference when the system is operating in a first mode. When the system changes to a second mode of operation, the interference suppression apparatus updates the filter characteristics to filter characteristics which are appropriate for suppressing interference associated with the second mode of operation. | 05-14-2009 |
Malay Ghosh, Fort Worth, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20080287395 | Phospholipid Compositions for Contact Lens Care and Preservation of Pharmaceutical Compositions - The use of certain synthetic phospholipids to preserve pharmaceutical compositions from microbial contamination is described. The synthetic phospholipids have unique molecular arrangements wherein a phosphate group is linked to a quaternary ammonium functionality via a substituted-propenyl group, and the quaternary ammonium functionality is further linked to at least one long hydrocarbon chain. Such molecular arrangements are what make the phospholipids of formula (I) highly water soluble, e.g., the length of the hydrocarbon chain assists to maintain solubility and efficacy of the molecules for the uses described herein. The synthetic phospholipids described herein have been found to be particularly useful as antimicrobial preservatives for ophthalmic, otic and nasal pharmaceutical compositions, especially ophthalmic compositions. These compounds may also be utilized to disinfect contact lenses. The invention is based in-part upon a finding that the antimicrobial activity of the synthetic phospholipids is affected by the ionic strength of the compositions in which the compounds are contained. The provision of compounds having limited ionic strengths is therefore preferred. | 11-20-2008 |
| 20090298956 | SELF-PRESERVED EMULSIONS - The use of multifunctional synthetic compounds to both stabilize and preserve therapeutic emulsions is described. The multifunctional synthetic compounds have unique molecular arrangement wherein a phosphate group is linked to one, two or three quaternary ammonium functionalities via a substituted propenyl group, and each quaternary ammonium functionality is further linked to at least one hydrocarbon chain. The pharmaceutical emulsions which include these multifunctional compounds may be prepared without heating or homogenization, and may not require the use of any additional stabilizing or preserving agents. | 12-03-2009 |
| 20100056537 | PHARMACEUTICAL COMPOSITION HAVING RELATIVELY LOW IONIC STRENGTH - The present invention is directed to the provision of pharmaceutical compositions such as multi-dose, ophthalmic compositions. The compositions possess sufficient antimicrobial activity to satisfy preservative efficacy requirements in the United States and/or Europe. The compositions include sorbate or a non-polymeric diquaternary ammonium compound for enhancing preservation efficacy. Further, the compositions typically have relatively low ionic strengths to assist in maintaining such efficacy. | 03-04-2010 |
| 20100227904 | Pharmaceutical Composition for Delivery of Receptor Tyrosine Kinase Inhibiting (RTKi) Compounds to the Eye - The present invention relates to development of efficacious pharmaceutical implant compositions comprising an active agent in a therapeutically effective amount and a polyethylene glycol having a molecular weight of at least 2000. | 09-09-2010 |
| 20100227905 | Pharmaceutical Composition for Delivery of Receptor Tyrosine Kinase Inhibiting (RTKi) Compounds to the Eye - The present invention relates to development of efficacious pharmaceutical compositions in the form of aqueous solutions comprising an active agent in a therapeutically effective amount and a polyethylene glycol having a molecular weight of at least 2000. | 09-09-2010 |
| 20110135743 | CARBOXYVINYL POLYMER-CONTAINING NANOPARTICLE SUSPENSIONS - The present invention generally relates to suspension compositions having a carboxyvinyl polymer such as a carbomer, a galactomannan such as guar, and a borate compound. A sparingly soluble particulate compound such as nepafenac is also included in the compositions. The sparingly soluble particulate compound has a small particle size to enhance bioavailability of the compound. | 06-09-2011 |
Pradip Ghosh, Houston, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20100322858 | Radiohaloimatinibs and Methods of Their Synthesis and Use in PET Imaging of Cancers - We disclose methods of synthesizing radiohalidated organic compounds and their use in positron emission tomography (PET) imaging of cancer cells. | 12-23-2010 |
| 20110097268 | RADIOHALOIMATINIBS AND METHODS OF THEIR SYNTHESIS AND USE IN PET IMAGING OF CANCERS - We disclose methods of synthesizing radiohalidated organic compounds and their use in positron emission tomography (PET) imaging of cancer cells. | 04-28-2011 |
Sukhen C. Ghosh, Houston, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20100173865 | Anti-Cancer Agent-Hyaluronic Acid Conjugate Compositions and Methods - Methods of making conjugates comprising an anti-cancer agent and hyaluronic acid, together with mixtures of reaction products comprising such conjugates and methods of using such conjugates in therapeutic and research applications are disclosed. | 07-08-2010 |
Supriyo Ghosh, The Woodlands, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20110316534 | SIMULTANEOUS DETERMINATION OF BITUMEN AND WATER CONTENT IN OIL SAND AND OIL SAND EXTRACTION PROCESS SAMPLES USING LOW-FIELD TIME-DOMAIN NMR - A method for quantifying bitumen and/or water in a sample comprising bitumen, water and solids using a time-domain nuclear magnetic resonance pulse spectrometer is provided comprising the steps of: initially saturating the magnetization of the sample so that essentially no magnetization remains in the +Z axis; subjecting the sample to a sequence of radio-frequency pulses optimized for the measurement of bitumen and water in the sample; allowing the recording of the transverse relaxation (T | 12-29-2011 |