Abstract: A variable gain amplifier comprises a plurality of serially connected transistor cells, in which each of the transistor cells has a plurality of connecting terminals. The first terminals of the transistor cells are serially coupled together to receive a first input voltage. The second terminals of the transistor cells are serially connected via a first set of resistors between adjacent cells and coupled to a first gain control. Each of the second terminals is AC or virtual grounded. The third terminals of the transistor cells are coupled together to supply a positive current output. The fourth terminals of the transistor cells are coupled together to supply a negative current output.

Abstract: The present technique provides a method for controlling an electron beam (e-beam) in an X-ray tube. The method comprises emitting electrons from an electron source to form the e-beam, accelerating the e-beam from a cathode through an aperture in a plate, focusing and steering the e-beam from the aperture through a plurality of field generating plates, and accelerating the e-beam from the plurality of the field generating plates to a target. Also provided are X-ray tubes and computed tomography systems.

Abstract: A metal nanoparticle supported on or dispersed in a polymer is irradiated with photons from a laser source to address the nanoparticles. The polymer is transmissive to the photons and addressed nanoparticles transform the energy of the photon to heat which is transferred to a material in the vicinity of the nanoparticle. The locally heated material undergoes a physical or chemical transformation upon heating. The transformed material can be a material in the proximity of the metal nanoparticle supported polymer or metal nanoparticle/polymer composite. In this manner thermally induced physical or chemical transformations can be carried out in very small volumes of material without significant heating to the bulk of the material.

Abstract: A method includes executing a gesture with a user-manipulated physical object in the vicinity of a device; generating data that is descriptive of the presence of the user-manipulated object when executing the gesture; and interpreting the data as pertaining to at least one object, such as an object displayed by the device.

Abstract: A polarization imaging apparatus measures the Stokes image of a sample. The apparatus consists of an optical lens set 11, a linear polarizer 14 with its optical axis 18, a first variable phase retarder 12 with its optical axis 16 aligned 22.5° to axis 18, a second variable phase retarder 13 with its optical axis 17 aligned 45° to axis 18, a imaging sensor 15 for sensing the intensity images of the sample, a controller 101 and a computer 102. Two variable phase retarders 12 and 13 were controlled independently by a computer 102 through a controller unit 101 which generates a sequential of voltages to control the phase retardations of VPRs 12 and 13. A set of four intensity images, I0, I1, I2 and I3 of the sample were captured by imaging sensor 15 when the phase retardations of VPRs 12 and 13 were set at (0,0), (?,0), (?,?) and (?/2,?), respectively Then four Stokes components of a Stokes image, S0, S1, S2 and S3 were calculated using the four intensity images.

Abstract: A variable gain amplifier comprises a plurality of serially connected transistor cells, in which each of the transistor cells has a plurality of connecting terminals. The first terminals of the transistor cells are serially coupled together to receive a first input voltage. The second terminals of the transistor cells are serially connected via a first set of resistors between adjacent cells and coupled to a first gain control. Each of the second terminals is AC or virtual grounded. The third terminals of the transistor cells are coupled together to supply a positive current output. The fourth terminals of the transistor cells are coupled together to supply a negative current output.

Abstract: The present invention relates to optical glass having a high refractive index, high dispersion, and a low glass transition temperature; a preform comprised of the optical glass for precision press-molding and a method of manufacturing the same; and an optical element comprised of the optical glass and a method of manufacturing the same.

Abstract: The present invention provides a neodymium doped, transparent electro-optic gain ceramic material consisting lead, zirconium, titanium and lanthanum. The electro-optic gain ceramic material either has a linear electro-optic coefficient or a quadratic electro-optic coefficient, which is greater than about 0.3×10?16 m2/V2 for the latter, a propagation loss of less than about 0.3 dB/mm, and an optical gain of great than 2 dB/mm at a wavelength of about 1064 nm while optically pumped by a 2 watts diode laser at a wavelength of 802 nm at 20° C. The present invention also provides electro-optic devices including a neodymium doped, transparent electro-optic gain ceramic material consisting lead, zirconium, titanium and lanthanum. The present invention also provides lossless optical devices and amplifiers with an operating wavelength in the range of 1040 nm to 1100 nm while optically pumped at a wavelength in the range of 794 nm to 810 nm.

Abstract: A method is provided for sending messages to a plurality of access terminals in a wireless network. The method comprises broadcasting a multicast message along with a predetermined address associated with the plurality of access terminals. The multicast message and the address associated with a plurality of access terminals is received at an access terminal. The access terminal compares the received address with a locally stored address, and the message is accepted in response to the received and locally stored addresses being the same. If the received and locally stored addresses are different, then the multicast message is discarded.

Abstract: A method is provided for controlling delivery of packets over a synchronous control channel in a wireless system employing the High Rate Packet Data (HRPD) standard. The synchronous channel is comprised of a plurality of slots, and a first packet is sent over the synchronous control channel in a first one of the plurality of slots along with an indication of a second one of the plurality of slots in which a second packet will be delivered. Thereafter, the second packet is sent over the control channel in the second one of the plurality of slots. Subsequent packets are handled similarly.

Abstract: The present invention provides a method of wireless communication. One embodiment of the method includes providing a message including information indicative of at least one carrier and at least one system type associated with each carrier. Another embodiment of the method includes receiving a message including information indicative of at least one carrier and at least one system type associated with each carrier.

Abstract: The present invention provides a method of wireless communication involving at least one first carrier operating according to a first system type and at least one second carrier operating according to a second system type is provided. The method may include determining that a mobile unit is to be handed over between a first carrier operating according to the first system type and a second carrier operating according to the second system type based on a loading of at least one of the first and second carriers.

Abstract: Provided are crystals relating to the autoinhibited structure of c-KIT tyrosine kinase (c-KIT) and its various uses.

Abstract: An area array device has a grid array of primary electrical contacts coupled to a coupling surface of the device and configured to carry data signals between the area array package and a circuit board. The area array device also has an additional series of secondary electrical contacts coupled to the coupling surface of the device and configured to carry power signals between the area array package and the circuit board. The additional series of secondary electrical contacts provides a relatively large amount of power to the area array package while allowing a manufacturer to maintain the number of primary electrical contacts of the grid array configured to carrying data signals and therefore maintain the overall performance of the area array package.

Abstract: An improved Land Grid Array interconnect structure is provided with the use of small metal bumps on the substrate electrical contact pad. The bumps interlock with segments of the fuzz button connection and increase the physical contact surface area between the contact pad and fuss button. The improved contact reduces displacement of electrical contact points due to thermo-mechanical stress and lowers the required actuation force during assembly.

Abstract: The invention provides methods of inhibiting growth of tumor cells comprising contacting the cells with a Cdk4 inhibitor. The invention also provides methods of treating patients having, suspected of having, or at a high risk for developing, a cancer, comprising treatment with a Cdk4 inhibitor. The invention also relates to pharmaceutical compositions for treating such patients, wherein the pharmaceutical compositions comprise a Cdk4 inhibitor. The invention further relates to Cdk4 siRNA molecules capable of inhibiting Cdk4 expression or activity.

Abstract: A current squaring cell is provided for producing an output current that correlates to the square of an input signal current. The current squaring cell comprises a first circuit portion, which receives a first tail current that is positively proportional to the input signal current, and a second circuit portion, which connects to the first circuit portion and receives a second tail current that is negatively proportional to the input signal current.