Motorola Corporation

Andrx Pharmaceuticals, Inc.

Himedics, Inc.

Motorloa, Inc.

Jose I Suarez

Yolanda Prieto

Yolanda M Pirez

Jaime Andres Borras

William J Martin

Alan M Victor

Chih-Ming Chen

Frederick Y Cho

James S Irwin

David Penunuri

Clifford D Leitch

Alfred B Wieczorek

Francis Robert Steel

James V Motsinger

Ruben J Gonzalez

Wayne P Shepherd

Harold M Cook

Daniel M Smith

James V Lauder

Robert P Giannini

Charles S Chiao

Marc H Popek

James Edward Jesse

George Revtai, Jr

Susan M Fromm

A digital data system () provides 1-D, 2-D and 3-D capability and multi-band channel capability. Improved filter banks are created by generating a filter bank having an analysis portion and synthesis portion and obtaining wavelet coefficients () for each portion. The wavelet coefficients are expressed in a format capable of canonical signed digit (CSD) representation, such as integers (). The canonical signed digit (CSD) representation is controlled by a value, N, selected to control resolution of the CSD coding. Optimized CSD-coded wavelet coefficients are used as filters for data signals ().

Method and apparatus for implementing wavelet filters in a digital system

An encoder () selects () one or more subsets of spatially or temporally correlated transformed data coefficients, on the basis of the significance of each subset in representing the data. The encoder () and a complementary decoder () may be applied to wavelet transform encoded images (). The encoder () may be implemented on a wireless to Internet gateway server (), in order to reduce byte size of encoded images () sent through a wireless network (), and reduce the amount of processing that must be performed by a wireless device () to decode an image or other data. The decoder () and/or encoder () may be implemented on the wireless device ().

System and method for efficiently encoding an image by prioritizing groups of spatially correlated coefficients based on an activity measure

A digital data system ( ) provides 1-D, 2-D and 3-D capability and multi-band channel capability. Improved filter banks are created by generating a filter bank having an analysis portion and synthesis portion and obtaining wavelet coefficients ( ) for each portion. The wavelet coefficients are expressed in a format capable of canonical signed digit (CSD) representation, such as integers ( ). The canonical signed digit (CSD) representation is controlled by a value, N, selected to control resolution of the CSD coding. Optimized CSD-coded wavelet coefficients are used as filters for data signals ( ).

An encoder ( ) selects ( ) one or more subsets of spatially or temporally correlated transformed data coefficients, on the basis of the significance of each subset in representing the data. The encoder ( ) and a complementary decoder ( ) may be applied to wavelet transform encoded images ( ). The encoder ( ) may be implemented on a wireless to Internet gateway server ( ), in order to reduce byte size of encoded images ( ) sent through a wireless network ( ), and reduce the amount of processing that must be performed by a wireless device ( ) to decode an image or other data. The decoder ( ) and/or encoder ( ) may be implemented on the wireless device ( ).

A method for generating a wavelet filter provides improved selectivity with minimal computational intensity in digital data systems (,). The process begins by generating an initial wavelet formed of low pass and high pass analysis filter bank (,). The next steps include obtaining an upper triangular matrix which, when multiplied by the initial wavelet, produces a product retaining the symmetry and enhancing the number of zero moment(s) of the initial wavelet (,); and obtaining a lower triangular matrix which, when multiplied by the initial wavelet, produces a product retaining the symmetry and the zero moment of the initial wavelet (,). By multiplying the upper and lower triangular matrices with the initial wavelet, an updated wavelet filter with improved selectivity is produced (,).

Method and apparatus of creating and implementing wavelet filters in a digital system

The present invention is directed to a controlled release dosage form which may be made using an osmotic core which contains a drug containing phase which includes a water swellable component and a continuous coating which comprises a major amount of a water resistant polymer and a minor amount of a non-toxic, water soluble, pharmaceutically acceptable compound.

Controlled release tablet formulation

In a radio transceiver (100), an IF stage (110) is formed on a single substrate. A balanced or image rejection mixer (204) having two pairs of inputs and a pair of outputs is integrated on an IC substrate (202). Disposed on the IC substrate are SAW transformers (210, 212 and 214) which provide a desired phase transformation. The SAW transformers comprise piezoelectric layers (228) and metallization layers (230) which are suitably patterned to provide the desired phase transformation and frequency selectivity.

Integrated circuit including a surface acoustic wave transformer and a

An apparatus (200) and method for adjusting the bias current of the oscillating device (320) in a VCO (202) in response to changes in the tuning voltage of the VCO to achieve reduced sideband noise.

Voltage controlled oscillator with current control

An RF contact (2) provides multiple RF paths (51-53) with minimal RF path lengths between a first (8) and second (36) interconnecting surfaces. A stationary member (6) is soldered on the first surface (8). A main spring member (22) is resiliently (26) connected to the stationary member (6) on a springing end (27) to provide contact travel (38) which ensures wiping action with the second surface (36). A secondary spring member (28) having at least two wiping portions (42 and 46) is resiliently (29) connected to the displacement member on its other end (38) to engage the stationary member (6) and the main spring member (22) along the at least two wiping portions (42 and 46) when the main spring member (22) is resiliently biased against the secondary spring member (28) and the stationary member (6).

RF interconnect

An oscillator circuit is tunable by a tuning circuit which includes a spiral inductor disposed on a ferrite substrate. The oscillator circuit is tuned or modulated by varying a current through the spiral inductor.

Oscillator tunable by varying current in spiral inductor on ferrite

A fast locking phase locked loop includes a first integrator that provides a signal representing a function of the mathematical or ideal integral of the phase difference between an input signal and a feedback signal. A voltage controlled oscillator is coupled to the first integrator and provides a signal to a phase shifter that provides the phase shifted signal that represents a function of the phase of the signal from the VCO, and a function of the integral of the phase difference between the integrated signals.

Fast lock time phase locked loop

The invention disclosed is erythromycin microencapsulated granules activity densities greater than about 0.300 g/ml. These granules are unusually small having diameters less than about 1000 microns. The granules are particularly useful in hand-held flowable material dispensers. A process for manufacturing such granules is also disclosed.

Erythromycin microencapsulated granules

A method and apparatus are provided for generating a uniquely shaped prototype digital pulse which is transmitted with minimal frequency spectrum consumption and yet a relatively high bit rate. Such uniquely shaped digital pulse is stored in a memory included in a transmitter until transmission is desired, at which time a positive of the pulse is transmitted to correspond to a first logic level or the negative of the pulse is transmitted to correspond to a second logic level.

Spectrally efficient digital modulation method and apparatus

A frequency synthesized transceiver capable of tuning to a plurality of communication channels is disclosed. The transceiver includes a receiver and a transmitter section which are coupled to the synthesizer which generates the appropriate injection signals to achieve tuning. A battery saving circuit generates a battery saving signal having a predetermined duty cycle and period and is responsive to the phase detector in the synthesizer to disrupt power to the synthesizer while maintaining precise tuning. The battery saver circuit is also responsive to the transceiver. In a normal receive operation, a battery saving circuit synchronizes its battery saving signal with the hold condition of the phase detector to disrupt power to selected modules in the synthesizer without altering the injection frequency of the receiver. In a standby mode, power is disrupted to all modules in the receiver, the selected modules in the phase locked loop and the voltage controlled oscillator. During a transmit mode all battery saving is terminated.

Battery saving system for a frequency synthesizer

A frequency synthesizer is provided including a reference frequency generator coupled to one input of a phase detector. The output of the phase detector is coupled via a pair of alternatingly connected filters through a voltage controlled oscillator and a divider circuit to the remaining input of the phase detector to form a phase locked loop. The first filter of the pair is designated for operation on a main channel frequency while the remaining filter is designated for operation on a priority channel frequency. The capacitive elements of each respective filter remain fully charged up for operation on their respective frequencies and thus when such filters are alternately switched between to change frequency from the main channel to the priority channel, the capacitive elements need not be charged to new levels to accommodate such frequency change. Thus, switching between a main channel and a priority channel is accomplished in a minimal amount of time with a significant reduction in frequency synthesizer energy requirements.

Growing community of inventors

Coral Gables, FL, United States of America

Jose I Suarez