Abstract:
A transmission gate includes first and second MOS transistors of opposite conductivity type coupled in parallel with each other. Each transistor includes a body connection that is separately biased by corresponding first and second biasing circuits. The first biasing circuit generates a first bias voltage having a voltage level that is generated as a function of the signal at the first node and a first (for example, positive) reference voltage. The second biasing circuit generates a second bias voltage having a voltage level that is generated as a function of the signal at the first node and a second (for examples ground) reference voltage.
Abstract:
A method tracks a plurality of touch points across successive frames of a touch sensitive input device to determine a trajectory. Each touch point on a frame of a touch sensitive input device is correlated with another distinct touch point on a subsequent frame of the same touch sensitive input device. The correlation is based on examining in the subsequent frame an area surrounding each touch point on the previous frame. Touch points identified within this search area are prioritized based on a projected trajectory through the prior touch point based on historical data.
Abstract:
The present disclosure provides a very thin semiconductor package including a leadframe with a die-attach pad and a plurality of lead terminals, a die attached to the die-attach pad and electrically connected to the lead terminals via bonding wires, a position member disposed upon the die and/or die-attach pad, and a molding material encapsulating the leadframe, the die, and the position member together to form the semiconductor package. The method for manufacturing a very thin semiconductor package includes disposing a first position member on one side of the die-attach pad of a leadframe, attaching a die onto the opposite side of the die-attach pad, optionally disposing a second position member on top of the die, electrically connecting the die to the lead terminals of the leadframe, and encapsulating the leadframe, the die, and the position member(s) together to form the very thin semiconductor package.
Abstract:
A device and method for generation of a dynamic focus correction signal for use with a CRT that includes an analog scanning processor for generating a dynamic focus correction signal that is proportional to Kx2+(1−K)x4, where x is the distance from a mid point of a viewing surface of the CRT, and K is a real number in the range 0.00 to 1.00. Embodiments of the invention find particular use in CRTs having generally flatter, squarer configurations.
Abstract:
The invention relates to microelectromechanical systems (MEMS), and more particularly, to MEMS switches using magnetic actuation. The MEMS switch may be actuated with no internal power consumption. The switch is formed in an integrated solid state MEMS technology. The MEMS switch is micron and/or nanoscale, very reliable and accurate. The MEMS switch can be designed into various architectures, e.g., a cantilever architecture and torsion architecture. The torsion architecture is more efficient than a cantilever architecture.
Abstract:
Row propagation delay is the duration it takes for a signal to travel the length of a row in a flat panel display matrix. Row propagation delay compensation modifies when column voltages are applied to each column in a flat panel matrix by substantially matching the delay for its position relative to the length of the row. A ternary signal generated by the timing controller with embedded clock and data information is buffered at the timing controller and transmitted to each column driver as required to substantially match row propagation delay while minimizing system interconnects and column driver circuitry.
Abstract:
An apparatus and method are disclosed for providing a power switch array with adjustable current rating power switches. A plurality of current rating power switches is provided that connects a power supply unit to a plurality of device ports. A power switch array controller is provided that adjusts an adjustable current rating in each of the plurality of adjustable current rating power switches. Each of the plurality of adjustable current rating power switches is adjustable to a selected number of current values. The power switch array controller dynamically adjusts the current ratings in the adjustable current power switches as required by the current requirements of the device ports.
Abstract:
A touch screen capable of correctly identifying multiple touches employs multiple active line arrays oriented to provide multi-dimensional data. Three arrays of capacitance based active lines are each distinctly oriented to form a plurality of intersections. A first and second array are generally oriented perpendicularly while a third array is oriented to bisect the resulting matrix such that the active lines of the third array also intersect the existing vertices. As a result of a touch each active line array identifies the location of the touch from three distinct directions. Ambiguity from dual touch scenarios existing in dual array systems is removed by providing an additional reference.
Abstract:
A disk drive power system is described. The system is operable such that during power interruption, the system taps electric power by rectifying the back-EMF generated across each winding of a DC motor and supplying power to a voice-coil motor to park a read/write head safely away from an associated magnetic disk surface.
Abstract:
A mask generation process for use in encoding audio data, including generating linear masking components from the audio data, generating logarithmic masking components from the linear masking components, and generating a global masking threshold from the logarithmic masking components. The process is a psychoacoustic masking process for use in an MPEG-1-L2 encoder, and includes generating energy values from a Fourier transform of the audio data, determining sound pressure level values from the energy values, selecting tonal and non-tonal masking components on the basis of the energy values, generating power values from the energy values, generating masking thresholds on the basis of the masking components and the power values, and generating signal to mask ratios for a quantizier on the basis of the sound pressure level values and the masking thresholds.