Other

Tripath Technology, Inc.

Microlab/fxr

Richard N Keller

Joseph E Pokorny

Alson R Kemp, Iii

Harry A Augenblick

A circuit is described for balancing a power supply having a positive bus with a positive voltage, and a negative bus with a negative voltage. The circuit includes a transformer having a primary winding and a secondary winding. Switching circuitry alternately connects the positive bus and the negative bus to the primary winding of the transformer thereby generating a secondary voltage of opposite polarity on the secondary winding of the transformer. Recycling circuitry is also included which is coupled to the secondary winding of the transformer and the positive and negative buses. When the secondary voltage is greater than the positive voltage, power is transferred from the negative bus to the positive bus via the transformer and the recycling circuit. When the secondary voltage is less than the negative voltage, power is transferred from the positive bus to the negative bus via the transformer and the recycling circuit.

Power supply topology to reduce the effects of supply pumping

A portable stage is formed from a plurality of similar interlocking members having interconnecting fastening mechanisms located on the ends and sides of the stage top. Each member has a removable upper surface panel, and a plurality of foldable legs of at least two different lengths.

Portable stage

A self-leveling table has a rectangular top bolted to a unitized base. The base has a horizontal rectangular frame which supports the top fabricated from four welded angle irons. The frame is supported by two pairs of crossed legs, welded at the cross, each of which terminate in a foot. The feet are heavy sheet metal bent slightly so as to touch the floor only at the ends. The table top is fitted with latching devices at each end of the top for attachment of a table extension or another table.

Self-leveling extendable table

A communication system comprising a transmitter for radiating a carrier frequency signal, which may be modulated, to a data station. The station includes a rectifier for rectifying the received carrier signal to provide energy to the station elements. A data source at the station produces a data signal representative of the information to be transmitted. A harmonic generator produces harmonics of the carrier signal and the harmonic signal is modulated with the data or information signal. An antenna radiates the modulated harmonic signal to a receiver which demodulates the received signal to extract the information therefrom. Thus, a completely self-contained and economic system is provided, since the carrier signal per se supplies the energy to operate the data station. Additionally, the communication system may include a carrier signal having an address encoded therein and the station may comprise an address decoder so that only a selected addressed station will transmit the desired data at any one time.

Growing community of inventors

North Las Vegas, NV, United States of America

Richard N Keller