Other

National Semiconductor Corporation

Jet City Electronics, Inc.

Glacier Microelectronics

David A Byrd

Craig M Davis

Thomas M Luich

Gary W Tietz

Max R Byrd

A display system for use in a pool or a small body of water. The display system including an anchor, a floating platform tethered to the anchor, and at least one display element. The floating platform is generally flat. The generally flat floating platform provides buoyancy. The display element protruding up from the floating platform.

Lightscape display system

The present invention, generally speaking, provides for a non volatile memory cell requiring no extra process steps. In one embodiment, the non volatile memory cell is a lateral polysilicon programmable read only memory cell, in particular a lateral poly fuse memory cell. Technique are provided to achieve a high yielding, voltage, temperature, and process insensitive lateral poly fuse memory. In one embodiment, a fusible link memory circuit includes a fusible link memory element and a programming circuit. The programming circuit includes a replica of the fusible link memory element and a programming current source for producing a known current density in the fusible link memory element in spite of variations including at least process variations.

High yielding, voltage, temperature, and process insensitive lateral poly fuse memory

According to the invention there is provided a system for supporting fixtures such as birdhouses, lanterns and feeders from differentiated supports. The apparatus includes a mounting board having front and back major surfaces. At least a first and preferably first and second horizontal rows of a plurality of slots pass through the backplane member from the back to the front major surfaces. A retainer strap is fitted through a pair of slots in each row and is closable to form a circuit, which may be sized to fit around a post, branch or trunk abutting the back major surface of the backplane. A support is pivotally attached to the front major surface and is positionable to provide a ledge.

Apparatus for supporting birdhouses, feeders and the like from differentiated members

An Electrically Erasable Programmable Read Only Memory (EEPROM) cell uses a single standard NMOS (or PMOS) transistor with its gate connected to a Metal-Insulator-Metal, or Poly-Insulator-Poly capacitor such that a floating gate is formed. The floating gate is programmed and erased via Fowler-Nordheim tunneling.

Electronically erasable memory cell using CMOS technology

A phase lock loop (PLL) circuit for controlling an oscillator includes a phase comparator, a loop filter, a reference converter and a feedback converter whose performance characteristics are dynamically controlled so as to provide a phase-locked output signal with both high frequency stepping resolution and low phase locking time. The phase comparator compares the relative phases of the reference and feedback signals, and outputs a phase difference signal representing such phase comparison. The loop filter, in accordance with a filter bandwidth dynamically selected by a filter control signal, filters the phase difference signal to provide a frequency control signal for a voltage controlled oscillator (VCO). The reference converter is a programmable frequency divider which, in accordance with a reference proportionality factor dynamically selected by a reference control signal, reduces the frequency of the PLL reference signal frequency used by the phase comparator. The feedback converter is another programmable frequency divider which, in accordance with a feedback proportionality factor dynamically determined by a feedback control signal, reduces the frequency of the VCO feedback signal frequency used by the phase comparator. Each combination of a selected filter bandwidth, a reference proportionality factor and a feedback proportionality factor corresponds to a different time interval within which phase lock is achieved.

Phase lock loop with selectable frequency switching time

An improved ground cover. The ground cover is comprised of mulch and a binder. The mulch is molded into the shape desired and held together by the binder. The mulch is comprised of a plurality of small pieces. The binder surrounds the mulch and holds the mulch together. The mulch bound together is both gas and water permeable. Also, the bound mulch is biodegradable and harmless to soil and plants. The mulch may contain leachable plant nutriments. The mulch is opaque so as to retard weed growth and able to retain water.

Ground cover and soil supplement

A phase-locked loop having automatic internal phase offset calibration includes a voltage-controlled oscillator circuit for generating a recovered data signal in response to an error signal. A phase detector determines the phase difference between the recovered data signal and a reference data signal. The phase-locked loop further includes a charge pump circuit, coupled to the phase detector, for generating an error signal in response to the detected phase difference. The charge pump circuit includes first and second pump generators for respectively providing first and second sets of pump signals, with the pump generators being interconnected to facilitate generation of the error signal. The phase-locked loop is designed to alternate between operation in phase correction and phase calibration cycles. In each phase correction cycle an error signal is synthesized as described above on the basis of the most recent phase comparison. During each intervening phase calibration cycle a calibration network operates to adjust the second charge pump generator such that the first and second sets of pump signals are precisely balanced when the reference and recovered data signals have a predefined phase relationship. In a preferred embodiment the predefined phase relationship corresponds to that of the reference and recovered data signals being matched in phase. In this way inconsistencies in the operating characteristics of the pump generators are precluded from engendering steady-state phase alignment errors between the reference and recovered waveforms.

Phase-locked loop with automatic phase offset calibration

A phase detector and charge pump combination is disclosed for use in a digital phase locked loop system. The phase detector includes a reset circuit that responds to the charge pump condition where it is simultaneously sourcing and sinking current. The pump up and down circuits are fast acting and balanced so that minimum conduction is employed for the phase lock condition.

Digital phase comparator/charge pump with zero deadband and minimum

A portable truck cap comprising a plurality of frame members, which are detachably connected to each other to form a frame, the frame has a top portion and a base portion, the top portion is resilient, the base portion is detachably connectable to a truck. A flexible cover is disposed over the frame, and detachably connected to said base portion of the frame. The cover is tensioned by the top portion of the frame to maintain the cover in a predetermined configuration.

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Puyallup, WA, United States of America

David A Byrd