Abstract: A system and method is provided for enabling data transfer over the same electrical routing network utilized by the mobile device to obtain electric power from an external power source. The system includes a contact base connected to a power supply, and mobile device adapters. The contact base is a flat surface that comprises a segmented conductive area with conductive contact pads on the surface, and a plurality of base controller modules that detect the presence of compatible mobile devices placed on the contact surface and routes the electrical power through the contact points on the surface to the compatible mobile devices accordingly, after a handshake protocol. The data communication portion of the system comprises a power line communication bypass circuit and a repeater for power line communication either within or adjunct to the power supply that powers the contact base.
Abstract: A system and method is provided for the inductive transfer of electric power between a substantially flat primary surface and a multitude of secondary devices in such a way that the power transfer is localized to the vicinities of individual device coils. The contact free power transfer does not require precise physical alignment between the primary surface and the secondary device and can allow the secondary device or devices to be placed anywhere and in arbitrary orientation with respect to the primary surface. Such power transfer is realized without the need of complex high frequency power switching network to turn the individual primary coils on or off and is completely scalable to almost arbitrary size. The local anti-resonance architecture of the primary device will block primary current from flowing when no secondary device or devices are in proximity to the local RF power network.
Abstract: A simplified system of recording and displaying input data signals having a multi-stage memory that provides a given magnitude output signal to a meter or recorder for each memory stage energized, with said memory having a stage, magnitude discriminator circuit, and a scaling network for interfacing signal inputs to appropriate memory stages, with a timer for resetting the memory stages to provide an update readout periodically to the meter, and with a direct display for displaying the particular memory stages that are energized, providing a direct display readout of the meter readings.
Abstract: A system for providing X-Y trace coding of multiple parameter recordings through use of a single stylus, single trace recorder by multiplexing multiple signals to the recorder with given time intervals for each multiplexing channel, and in a separate mode by superimposing predetermined waveforms upon the signal information, which superimposed waveforms in coordination with the time the signals are supplied to the recorder and the time of movement of the recorder, moves the stylus to record a given indicia or design, identifying a given channel of information on the single trace recording.
Abstract: A circuit for determining on a half-wave cycle basis the maximum and minimum voltages of input cyclic line voltages for selected time periods in which the line voltages are rectified to half-waves, and an integrating voltage to frequency converter provides output pulses proportional to the voltage magnitudes of the half-waves with the pulses being counted and placed in a memory and then compared with minimum and maximum previous counts for previous half-waves, to provide an updated minimum and maximum voltage for such half-waves over a period of time or period of half-waves, with provisions for providing resetting strobe pulses at zero voltages of the half-waves and for providing accurate measuring of the pulse outputs in the integrating voltage to frequency converter by modulating the integrator sense voltage and achieving substantially accurate compensation for the effects of timing errors in the V/F converter.