Jin, San Diego
Arthur H Jin, San Diego, CA US
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20160105761 | METHOD FOR DETERMINING DIRECTIONALITY USING BLUETOOTH LOW ENERGY COMMUNICATIONS - A method and system detect directionality between two objects by measuring angles of signals incident on antenna arrays on at least one side to determine angle of incidence. The methods utilize Bluetooth Low Energy communications as the means for both the control protocol and for providing updated information for deriving directionality. Directionality information is broadcast on selected BLE advertising or data channels, or broadcast using a hopping pattern over the BLE data channels, both at a specific interval duty cycle. If a hopping pattern is selected to transmit directionality information, then anchor information is simultaneously broadcast on the BLE advertising or data channels at a different, asynchronous duty cycle. In additional embodiments, signals incident on antenna arrays located on both target and tracking sides are used to determine angle of incidence, separate antennas are combined to form new antennas and antenna models are used to anticipate known antenna structure responses. | 04-14-2016 |
Bohan Jin, San Diego, CA US
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20090246198 | MAPK/ERK KINASE INHIBITORS AND METHODS OF USE THEREOF - Compounds of the following formula are provided: | 10-01-2009 |
20110021515 | DIHYROFUROPYRMINDINE COMPOUNDS - The present invention provides mTOR inhibitors of the formula | 01-27-2011 |
20110053921 | HEXAHYDROOXAZINOPTERINE COMPOUNDS - The present invention provides mTOR inhibitors of the formula | 03-03-2011 |
20110178070 | PI3K/mTOR INHIBITORS - The invention relates to PI3K/mTOR inhibiting compounds consisting of the formula: | 07-21-2011 |
20120178924 | HEXAHYDROOXAZINOPTERINE COMPOUNDS - The present invention relates to intermediates of the formula | 07-12-2012 |
20120220575 | N-SUBSTITUTED OXAZINOPTERIDINES AND OXAZINOPTERIDINONES - Disclosed are compounds of Formula 1, | 08-30-2012 |
20140309219 | N-SUBSTITUTED OXAZINOPTERIDINES AND OXAZINOPTERIDINONES - Disclosed are compounds of Formula 1, | 10-16-2014 |
Chao Jin, San Diego, CA US
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20150319666 | METHOD AND APPARATUS FOR FAST HANDOVER EVALUATION - Methods and apparatus for wireless communication for improving handover between a network and a user equipment (UE) when a measurement report is received. Aspects of the methods and apparatus relate to determining the quality of a serving cell associated with a fast handover performance threshold. When the fast handover performance threshold is breached, the UE may transmit a measurement report requesting a handover to a target cell. Upon requesting a handover to a target cell when the fast handover performance threshold is breached, the UE receives a handover trigger allowing handover to a target cell. | 11-05-2015 |
20150373568 | PREDICTING CHANNEL STATE - A process of wireless communication for obtaining channel quality information alignment includes predicting a channel state of a future downlink subframe of a signal. The process also includes providing a base station with a set of parameters based on the predicted channel state. For example, a user equipment (UE) can obtain a recommended transport block size (RTBS) from the predictor process, and return the RTBS to the base station as one of the set of parameters. | 12-24-2015 |
Fuxue Jin, San Diego, CA US
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20110025304 | CURRENT SENSING DEVICES AND METHODS - A low-cost and high-precision current sensing device and methods for use and manufacturing. In one embodiment, the current sensing apparatus comprises a Rogowski-type coil which is manufactured in segments so as to facilitate the manufacturing process. In an exemplary embodiment, the current sensing apparatus segments comprise a number of bobbin elements that are wound and subsequently formed into complex geometric shapes such as torus-like shapes. In an alternative embodiment, bonded windings are utilized which allow the segments to be formed without a bobbin or former. In yet another alternative embodiment, the aforementioned current sensing devices are stacked in groups of two or more. Methods of manufacturing and using the aforementioned current sensing apparatus are also disclosed. | 02-03-2011 |
20110025305 | CURRENT SENSING DEVICES AND METHODS - A low-cost and high-precision current sensing device and methods for use and manufacturing. In one embodiment, the current sensing apparatus comprises a Rogowski-type coil which is manufactured in segments so as to facilitate the manufacturing process. In an exemplary embodiment, the current sensing apparatus segments comprise a number of bobbin elements that are wound and subsequently formed into complex geometric shapes such as torus-like shapes. In an alternative embodiment, bonded windings are utilized which allow the segments to be formed without a bobbin or former. In yet another alternative embodiment, the aforementioned current sensing devices are stacked in groups of two or more. Methods of manufacturing and using the aforementioned current sensing apparatus are also disclosed. | 02-03-2011 |
20110148561 | CURRENT SENSING DEVICES AND METHODS - A low-cost and high-precision current sensing device and methods for use and manufacturing. In one embodiment, the current sensing apparatus comprises a Rogowski-type coil which is manufactured in segments so as to facilitate the manufacturing process. In an exemplary embodiment, the current sensing apparatus segments comprise a number of bobbin elements that are wound and subsequently formed into complex geometric shapes such as torus-like shapes. In an alternative embodiment, bonded windings are utilized which allow the segments to be formed without a bobbin or former. In yet another alternative embodiment, the aforementioned current sensing devices are stacked in groups of two or more. Methods of manufacturing and using the aforementioned current sensing apparatus are also disclosed. | 06-23-2011 |
20130320961 | CURRENT SENSING DEVICES AND METHODS - A low-cost and high-precision current sensing device and methods for use and manufacturing. In one embodiment, the current sensing apparatus comprises a Rogowski-type coil which is manufactured in segments so as to facilitate the manufacturing process. In an exemplary embodiment, the current sensing apparatus segments are asymmetric in shape and/or composition (e.g., bobbin shape, size, and/or winding configuration) so as to account for asymmetries in the magnetic field distribution around a bus bar, or to accommodate its shape in a more compact form factor, and/or to improve the immunity to the effects of an external magnetic field. Methods of manufacturing and using the aforementioned current sensing apparatus are also disclosed. | 12-05-2013 |
20160097794 | CURRENT SENSING INDUCTIVE DEVICES WITH INTEGRATED BUS BAR - A low-cost and high-precision current sensing device and methods for use and manufacturing. In one embodiment, the current sensing apparatus comprises a Rogowski-type coil which is manufactured in segments so as to facilitate the manufacturing process. In an exemplary embodiment, the current sensing apparatus segments comprise a number of bobbin elements that are wound and subsequently formed into complex geometric shapes such as torus-like shapes. In an alternative embodiment, bonded windings are utilized which allow the segments to be formed without a bobbin or former. In yet another alternative embodiment, the aforementioned current sensing devices are stacked in groups of two or more. Methods of manufacturing and using the aforementioned current sensing apparatus are also disclosed. | 04-07-2016 |
Li Jin, San Diego, CA US
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20150133373 | TRANSMUCOSAL DELIVERY OF ENGINEERED POLYPEPTIDES - Formulations are provided that comprise compounds having inter alia good duration of action, high potency and/or convenient dosing regimens, and a permeation enhancer for transmucosal administration. The compounds are engineered polypeptides which incorporate an albumin binding domain in combination with one or more biologically active polypeptides. The pharmaceutical compositions provided are suitable for methods of treatment for diseases and disorders including obesity and overweight, diabetes, dyslipidemia, hyperlipidemia, Alzheimer's disease, fatty liver disease, short bowel syndrome, Parkinson's disease, cardiovascular disease, and other and disorders of the central nervous system. | 05-14-2015 |
20150174209 | INSULIN-PRAMLINTIDE COMPOSITIONS AND METHODS FOR MAKING AND USING THEM - In alternative embodiments, the invention provides formulations, pharmaceutical compositions, devices and other products of manufacture comprising a therapeutically effective mixture of an insulin and a pramlintide, and methods for making and using them. For example, methods and compositions of the invention are used in the treatment or amelioration of a diabetes, a dementia or Alzheimer's disease, any abnormality of blood glucose control, an inability to control blood glucose, an elevation of fasting glucose or Impaired Fasting Glucose (IFG), an abnormality of tolerance to a glucose load or Impaired Glucose Tolerance (IGT), a hyperglycemia induced by an illness, a trauma, a medication administration or a form of metabolic, psychological or physical stress, or a hyperglycemia induced by steroids (steroid-induced diabetes), a latent autoimmune diabetes in adults (LADA), a postprandial or reactive Hypoglycemia or an insulin resistance, a PolyCystic Ovary Syndrome (PCOS), a ketoacidosis, a gestational diabetes, a hyperkalemia, a cancer or cachexia, a beta blocker overdose, or a jaundice. In alternative embodiments, the invention provides insulin pumps, devices, subcutaneous insulin infusion therapy devices, continuous subcutaneous insulin infusion therapy devices, infusion therapy devices, reservoirs, ampoules, vials, syringes, cartridges, disposable pen or jet injectors, prefilled pens or syringes or cartridges, cartridge or disposable pen or jet injectors, two chambered or multi-chambered pumps, syringes, cartridges or pens or jet injectors, or an artificial pancreas, comprising a formulation having an insulin:pramlintide ratio of the invention. | 06-25-2015 |
Liang Jin, San Diego, CA US
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20140239176 | METHOD OF ELECTRON BEAM IMAGING OF A SPECIMEN BY COMBINING IMAGES OF AN IMAGE SEQUENCE - A method of imaging of a specimen exposed to an electron beam signal includes acquiring an image sequence of sequential images of the specimen. Each subsequent image in the image sequence represents increased cumulative electron beam signal exposure on the specimen. The method includes collecting cumulative exposure data for each image of the image sequence. The method includes applying a low-pass image processing filter to the images of the image sequence using the cumulative exposure data corresponding to each image to which the filter is being applied to produce processed images. The method includes combining the processed images to produce a final image. A method of imaging is also provided that includes selectively discarding images in the image sequence. | 08-28-2014 |
Peng Jin, San Diego, CA US
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20140198598 | SYSTEM AND METHOD OF PERFORMING POWER ON RESET FOR MEMORY ARRAY CIRCUITS - The disclosure relates to an apparatus for deactivating one or more predecoded address lines of a memory circuit in response to one or more of the predecoded address lines being activated upon powering on of at least a portion of the apparatus. In particular, the apparatus includes a memory device; an address predecoder configured to activate one or more of a plurality of predecoded address lines based on an input address, wherein the plurality of predecoded address lines are coupled to the memory device for accessing one or more memory cells associated with the one or more activated predecoded address lines; and a power-on-reset circuit configured to deactivate one or more of the predecoded address lines in response to the one or more of the predecoded address lines being activated upon powering on the at least portion of the apparatus. | 07-17-2014 |
20140247652 | PROCESS TOLERANT CIRCUITS - Various integrated circuits and methods of operating the integrated circuits are disclosed. The integrated circuit may include a circuit having one or more electrical parameters resulting from process variations during the manufacture of the integrated circuit, and a voltage source configured to supply a voltage to the circuit to power the circuit, wherein the voltage source is further configured to adjust the voltage as a function of the one or more electrical parameters. | 09-04-2014 |
20140269017 | PROCESS CORNER SENSOR FOR BIT-CELLS - An integrated circuit is disclosed. The integrated circuit includes a plurality of bit-cells arranged to store data. The integrated circuit also includes a sensor configured to generate an output for determining whether the bit-cells are operating at a process corner. The sensor comprises the same circuitry as the bit-cells. | 09-18-2014 |
20140269018 | Write-Assisted Memory with Enhanced Speed - A write-assisted memory includes a pre-charge assist circuit that assists the pre-charge of the power supply voltage on a power supply lead for an accessed memory cell in a bit-line-multiplexed group of memory cells subsequent to a write-assist period by coupling charge from the power supply leads for the remaining non-accessed memory cells in the bit-line-multiplexed group of memory cells. | 09-18-2014 |
Qihui Jin, San Diego, CA US
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20090312308 | COMPOUNDS AND COMPOSITIONS AS HEDGEHOG SIGNALING PATHWAY MODULATORS - The invention provides a method for modulating the activity of the hedgehog signaling pathway. In particular, the invention provides a method for inhibiting aberrant growth states resulting from phenotypes such as Ptc loss-of-function, hedgehog gain-of-function, smoothened gain-of-function or Gli gain-of-function, comprising contacting a cell with a sufficient amount of a compound of Formula I. | 12-17-2009 |
20110003790 | PYRIDO [4, 3-D] PYRIMIDINONE DERIVATIVES AS KINASE INHIBITORS - The invention provides a class of compounds of Formula (I), pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with abnormal or deregulated kinase activity, particularly Syk, ZAP70, KDR, FMS, FLT3, c-Kit, RET, TrkA, TrkB, TrkC, IGR-IR, AIk, c-FMS, or combinations thereof. | 01-06-2011 |
20110003798 | COMPOUNDS AND COMPOSITIONS AS KINASE INHIBITORS - The invention provides a novel class of 2,7-naphthyridin derivatives; pharmaceutical compositions comprising such compounds and methods of using such compounds to treat o prevent diseases or disorders associated with abnormal or deregulated kinase activity, particularly Syk, ZAP70, KDR, FMS, FLT*, c-Kit, RET, TrkA, TrkB, TrkC-GR-1R, Alk, c-FMS or combinations thereof. | 01-06-2011 |
20110053897 | COMPOUNDS AND COMPOSITIONS AS SYK KINASE INHIBITORS - Provided herein area novel class of compounds, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with abnormal or deregulated Syk kinase activity. | 03-03-2011 |
Sung-Ho Jin, San Diego, CA US
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20090075157 | Carbon nanotube for fuel cell, nanocomposite comprising the same, method for making the same, and fuel cell using the same - Provided are aligned carbon nanotubes for a fuel cell having a large surface area, a nanocomposite that includes the aligned carbon nanotubes loaded with highly dispersed nanoparticles of a metallic catalyst, methods of producing the carbon nanotubes and the nanocomposite, and a fuel cell including the nanocomposite. In the nanocomposite, nanoparticles of the metallic catalyst are uniformly distributed on external walls of the nanotubes. A fuel cell including the nanocomposite exhibits better performance. | 03-19-2009 |
20100112018 | Microcapsule, structure having a microcapsule, article having a microcapsule, and method of preparing microcapsules - A microcapsule, a structure including a microcapsule, an article including a microcapsule and a method of preparing microcapsules provided, the microcapsule includes at least one material selected from the group consisting of a magnetic substance, a dielectric substance and a combination thereof. The microcapsule also includes a volatile material. | 05-06-2010 |
20100236596 | ANISOTROPICALLY ELONGATED THERMOELECTRIC MATERIAL, PROCESS FOR PREPARING THE SAME, AND DEVICE COMPRISING THE MATERIAL - An anisotropically elongated thermoelectric nanocomposite includes a thermoelectric material. | 09-23-2010 |
20120024333 | THERMOELECTRIC MATERIAL DEFORMED BY CRYOGENIC IMPACT AND METHOD OF PREPARING THE SAME - A thermoelectric material has a microstructure deformed by cryogenic impact. When the cryogenic impact is applied to the thermoelectric material, defects are induced in the thermoelectric material, and such defects increase phonon scattering, which results in enhanced figure of merit. | 02-02-2012 |
20120076695 | OPEN-AND-CLOSE CONTROLLABLE ODOR COMPOUND RELEASE DEVICE AND METHOD OF MANUFACTURE - An odor compound release device includes a support that is deformed when an external stimulus is applied, and when the external stimulus is not applied, restored to its original state. A plurality of spaces are located in the support, have upper portions closed by the support, and are to be filled with odor compounds, wherein the upper portions are opened or closed by deformation or restoration of the support due to the application of the external stimulus. A member that is located in the support or on a surface of the support and applies the external stimulus to the support. | 03-29-2012 |
20130298729 | THERMOELECTRIC MATERIAL AND METHOD OF PREPARING THE THERMOELECTRIC MATERIAL - A method of preparing thermoelectric material particles, the method comprising: disposing a first electrode and a second electrode in a dielectric liquid medium, wherein the first and second electrodes each comprise a thermoelectric material; applying an electrical potential between the first and second electrodes to cause a spark between the first and second electrodes to provide a vaporized thermoelectric material at a sparking point of at least one of the first and second electrodes; and cooling the vaporized thermoelectric material with the dielectric liquid medium to prepare the thermoelectric material particles. | 11-14-2013 |
Yuefeng Jin, San Diego, CA US
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20100077135 | MEMORY WEAR LEVELING METHOD, SYSTEM AND DEVICE - A wear leveling method for a non-volatile memory is provided. The non-volatile memory includes a plurality of data blocks, each corresponding to a time value. The data blocks are arranged according to a sequence of the time values corresponding thereto. The arranged blocks form a key table. An erase operation is determined whether to be executed for the data blocks. When the erase operation is executed for the data blocks, the corresponding data block is erased according to a sequence of the time values of the data blocks in the key table. | 03-25-2010 |
20100287327 | COMPUTING SYSTEMS AND METHODS FOR MANAGING FLASH MEMORY DEVICE - A computing system is provided. A flash memory device includes at least one mapping block, at least one modification block and at least one cache block. A processor is configured to perform: receiving a write command with a write logical address and predetermined data, loading content of a cache page from the cache block corresponding to the modification block according to the write logical address to a random access memory device in response to that a page of the mapping block corresponding to the write logical address has been used, the processor, reading orderly the content of the cache page stored in the random access memory device to obtain location information of an empty page of the modification block, and writing the predetermined data to the empty page according to the location information. Each cache page includes data fields to store location information corresponding to the data has been written in the pages of the modification block in order. | 11-11-2010 |
Yuehai Jin, San Diego, CA US
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20150349712 | RECONFIGURABLE VARACTOR BANK FOR A VOLTAGE-CONTROLLED OSCILLATOR - Aspects of a reconfigurable varactor array for providing a capacitance to control an output frequency of a voltage-controlled oscillator are provided. The reconfigurable varactor array can be configured to provide a configurable capacitance. The reconfigurable varactor array can include a plurality of varactor cells connected in parallel. The reconfigurable varactor array can also include a control circuit configured to receive a control signal to select the configurable capacitance from the reconfigurable varactor array. The control circuit can include a plurality of switch groups. Each switch group can be separately connected to one varactor cell in the reconfigurable varactor array. The control signal from the control circuit can control operation of each switch group. | 12-03-2015 |
Yunho Jin, San Diego, CA US
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20110003798 | COMPOUNDS AND COMPOSITIONS AS KINASE INHIBITORS - The invention provides a novel class of 2,7-naphthyridin derivatives; pharmaceutical compositions comprising such compounds and methods of using such compounds to treat o prevent diseases or disorders associated with abnormal or deregulated kinase activity, particularly Syk, ZAP70, KDR, FMS, FLT*, c-Kit, RET, TrkA, TrkB, TrkC-GR-1R, Alk, c-FMS or combinations thereof. | 01-06-2011 |
20110053897 | COMPOUNDS AND COMPOSITIONS AS SYK KINASE INHIBITORS - Provided herein area novel class of compounds, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with abnormal or deregulated Syk kinase activity. | 03-03-2011 |
20110190259 | COMPOUNDS AND COMPOSITIONS AS PROTEIN KINASE INHIBITORS - The invention provides novel pyrimidine and pyridine derivatives and pharmaceutical compositions thereof, and methods for using such compounds. For example, the pyrimidine and pyridine derivatives of the invention may be used to treat, ameliorate or prevent a condition which responds to inhibition of anaplastic lymphoma kinase (ALK) activity, focal adhesion kinase (FAK), zeta-chain-associated protein kinase 70 (ZAP-70), insulin-like growth factor (IGF-1R), or a combination thereof. | 08-04-2011 |
20110257154 | COMPOUNDS AND COMPOSITIONS AS PROTEIN KINASE INHIBITORS - The invention provides novel pyrimidine and pyridine derivatives and pharmaceutical compositions thereof, and methods for using such compounds. For example, the pyrimidine and pyridine derivatives of the invention may be used to treat, ameliorate or prevent a condition which responds to inhibition of anaplastic lymphoma kinase (ALK) activity, focal adhesion kinase (FAK), zeta-chain-associated protein kinase 70 (ZAP-70), insulin-like growth factor (IGF-1R), or a combination thereof. | 10-20-2011 |
20130005748 | COMPOUNDS AND COMPOSITIONS AS PROTEIN KINASE INHIBITORS - The invention provides novel pyrimidine and pyridine derivatives and pharmaceutical compositions thereof, and methods for using such compounds. For example, the pyrimidine and pyridine derivatives of the invention may be used to treat, ameliorate or prevent a condition which responds to inhibition of anaplastic lymphoma kinase (ALK) activity, focal adhesion kinase (FAK), zeta-chain-associated protein kinase 70 (ZAP-70), insulin-like growth factor (IGF-1R), or a combination thereof. | 01-03-2013 |
20150105390 | COMPOUNDS AND COMPOSITIONS AS PROTEIN KINASE INHIBITORS - The invention provides novel pyrimidine and pyridine derivatives and pharmaceutical compositions thereof, and methods for using such compounds. For example, the pyrimidine and pyridine derivatives of the invention may be used to treat, ameliorate or prevent a condition which responds to inhibition of anaplastic lymphoma kinase (ALK) activity, focal adhesion kinase (FAK), zeta-chain-associated protein kinase 70 (ZAP-70), insulin-like growth factor (IGF-1R), or a combination thereof. | 04-16-2015 |
Zhang Jin, San Diego, CA US
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20090250262 | INDUCTOR WITH PATTERNED GROUND PLANE - An inductor with patterned ground plane is described. In one design, the inductor includes a conductor formed on a first layer and a patterned ground plane formed on a second layer under the conductor. The patterned ground plane has an open center area and a shape matching the shape of the conductor. The patterned ground plane includes multiple shields, e.g., eight shields for eight sides of an octagonal shape conductor. Each shield has multiple slots formed perpendicular to the conductor. Partitioning the patterned ground plane into separate shields and forming slots on each shield help prevent the flow of eddy current on the patterned ground plane, which may improve the Q of the inductor. Multiple interconnects couple the multiple shields to circuit ground, which may be located at the center of the conductor. | 10-08-2009 |
20100026368 | HIGH Q TRANSFORMER DISPOSED AT LEAST PARTLY IN A NON-SEMICONDUCTOR SUBSTRATE - An assembly involves an integrated circuit die that is bonded, e.g., flip-chip bonded, to a non-semiconductor substrate by a plurality of low-resistance microbumps. In one novel aspect, at least a part of a novel high-frequency transformer is disposed in the non-semiconductor substrate where the non-semiconductor substrate is the substrate of a ball grid array (BGA) integrated circuit package. At least one of the low-resistance microbumps connects the part of the transformer in the substrate to a circuit in the integrated circuit die. At two gigahertz, the novel transformer has a coupling coefficient k of at least at least 0.4 and also has a transformer quality factor Q of at least ten. The novel transformer structure sees use in coupling differential outputs of a mixer to a single-ended input of a driver amplifier in a transmit chain of an RF transceiver within a cellular telephone. | 02-04-2010 |
20100308924 | APPARATUS AND METHOD FOR FREQUENCY GENERATION - A wideband frequency generator has two or more oscillators for different frequency bands, disposed on the same die within a flip chip package. Coupling between inductors of the two oscillators is reduced by placing one inductor on the die and the other inductor on the package, separating the inductors by a solder bump diameter. The loosely coupled inductors allow manipulation of the LC tank circuit of one of the oscillators to increase the bandwidth of the other oscillator, and vice versa. Preventing undesirable mode of oscillation in one of the oscillators may be achieved by loading the LC tank circuit of the other oscillator with a large capacitance, such as the entire capacitance of the coarse tuning bank of the other oscillator. Preventing the undesirable mode may also be achieved by decreasing the quality factor of the other oscillator's LC tank and thereby increasing the losses in the tank circuit. | 12-09-2010 |
20110018635 | MULTI-MODE LOW NOISE AMPLIFIER WITH TRANSFORMER SOURCE DEGENERATION - A multi-mode low noise amplifier (LNA) with transformer source degeneration is described. In an exemplary design, the multi-mode LNA includes first, second, and third transistors and first and second inductors. The first transistor has its source coupled to the first inductor, amplifies an input signal, and provides a first amplified signal in a first mode. The second transistor has its source coupled to the second inductor, amplifies the input signal, and provides a second amplified signal in a second mode. The third transistor has its source coupled to the second inductor. The first and third transistors receive the input signal and conduct current through the first and second inductors, respectively, in a third mode. The first transistor observes source degeneration from a transformer formed by the first and second inductors, amplifies the input signal, and provides a third amplified signal in the third mode. | 01-27-2011 |
20120068777 | APPARATUS AND METHOD FOR FREQUENCY GENERATION - A wideband frequency generator has two or more oscillators for different frequency bands, disposed on the same die within a flip chip package. Coupling between inductors of the two oscillators is reduced by placing one inductor on the die and the other inductor on the package, separating the inductors by a solder bump diameter. The loosely coupled inductors allow manipulation of the LC tank circuit of one of the oscillators to increase the bandwidth of the other oscillator, and vice versa. Preventing undesirable mode of oscillation in one of the oscillators may be achieved by loading the LC tank circuit of the other oscillator with a large capacitance, such as the entire capacitance of the coarse tuning bank of the other oscillator. Preventing the undesirable mode may also be achieved by decreasing the quality factor of the other oscillator's LC tank and thereby increasing the losses in the tank circuit. | 03-22-2012 |
20130141177 | TUNABLE INDUCTOR CIRCUIT - A tunable inductor circuit is disclosed. The tunable inductor circuit includes a first inductor. The tunable inductor circuit also includes a second inductor in parallel with the first inductor. The tunable inductor circuit also includes a switch coupled to the second inductor. A resistance of the switch is added in parallel to the first inductor based on operation of the switch. | 06-06-2013 |
20150035600 | AMPLIFIERS WITH CONFIGURABLE MUTUALLY-COUPLED SOURCE DEGENERATION INDUCTORS - Amplifiers with configurable mutually-coupled source degeneration inductors are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes a gain transistor and a plurality of inductors, which may implement an amplifier. The gain transistor receives an input signal and provides an amplified signal. The plurality of inductors are mutually coupled, are coupled to the gain transistor, and provide a programmable source degeneration inductance for the gain transistor. The inductors may have a positive coupling coefficient and may provide a larger source degeneration inductance. Alternatively, the inductors may have a negative coupling coefficient and may provide a smaller source degeneration inductance. | 02-05-2015 |
20150130552 | TUNABLE GUARD RING FOR IMPROVED CIRCUIT ISOLATION - A tunable guard ring for improved circuit isolation is disclosed. In an exemplary embodiment, an apparatus includes a closed loop guard ring formed on an integrated circuit and magnetically coupled by a selected coupling factor to a first inductor formed on the integrated circuit. The apparatus also includes a tunable capacitor forming a portion of the closed loop guard ring and configured to reduce magnetic field coupling from the first inductor to a second inductor. | 05-14-2015 |
20150207482 | AREA-EFFICIENT DEGENERATIVE INDUCTANCE FOR A LOW NOISE AMPLIFIER (LNA) - A device includes a first and a second low noise amplifier (LNA), a first degenerative inductance coupled between the first LNA and ground by a first ground connection, and a second degenerative inductance coupled between the second LNA and ground by a second ground connection, the first and second degenerative inductances configured to establish negative inductive coupling between the first and second degenerative inductances. | 07-23-2015 |
20150349711 | INDUCTOR-ENCLOSED VOLTAGE-CONTROLLED OSCILLATORS - Certain aspects of the present disclosure provide an inductor-enclosed switchable voltage-controlled oscillator (VCO), for use in a frequency synthesizer of a radio frequency integrated circuit (RFIC), for example. One example apparatus is a frequency synthesizer that generally includes a first VCO circuit comprising a first inductor and a second VCO circuit comprising a second inductor, wherein at least a portion of the first VCO circuit is disposed inside a loop of the second inductor. According to certain aspects, at least a portion of the second VCO circuit is disposed inside a loop of the first inductor. | 12-03-2015 |