Abstract: An ultra-low profile vibrating transducer, particularly suited for floor mat and ultra thin vibrating pad and multimedia tactical feedback applications, using an “I” core coil in the center and permanent magnets positioned at both ends of the “I” core to create balanced push-pull vibrating actions. Mounting methods to effectively transfer energy to the users while withstanding user's body weight. “I” core coil may be driven by AC power, pulsed and/or DC power or audio power. Elastomeric supports are configured to provide rotational leverage action to further enhance the vibrating effectiveness.

Abstract: An ultra-low profile vibrating transducer, particularly suited for floor mat and ultra thin vibrating pad and multimedia tactical feedback applications, using an “I” core coil in the center and permanent magnets positioned at both ends of the “I” core to create balanced push-pull vibrating actions. Mounting methods to effectively transfer energy to the users while withstanding user's body weight. “I” core coil may be driven by AC power, pulsed and/or DC power or audio power. Elastomeric supports are configured to provide rotational leverage action to further enhance the vibrating effectiveness.

Abstract: Present invention describes a novel vibrator motor apparatus method of effectively transferring vibrating energy to the user, having supporting structure to prevent vibrating motors from collapsing due to the body weight compressing down against floor. Proposed methods and apparatus overcome limitations of effectively using vibrating motors for low profile floor mat applications.

Abstract: A digital inclinometer detects an inclination angle by sensing varying conductive current of various electrodes. When the inclinometer is rotated through an inclination angle, various segments of the sensing electrodes become immersed in a conductive fluid causing varying conductive currents to these sensing electrodes. A driving signal is applied to driving of electrode and the sensing side of electrodes is kept at a constant voltage by connecting them to an analog ground or to current sensing amplifier which maintains virtual ground during measurement to achieve an equipotential at both sides of the sensor plates. An Analog to Digital converter, microprocessor, and LCD display achieves a digital readout. Novel methods allow 360-degree precise measurements, while overcoming traditional limitations and errors due to fringe effects, non-linearity, and various environmental changes.

Abstract: The Music Massager is a system that interacts with a full spectrum of audio signals. The system contains, input process or band-pass discriminators, post processors including fixed or variable threshold detection, music beat pattern detectors, and beat enhancer to control vibrators. The post processor contains various syntheses of massage patterns, beat rhythm, dynamic non-linear signal operator, re-mapping of signal pass between detected band-passed signal to the output vibrator devices, combined with resynthesized vibrating action operates in concert with music or sound beat and rhythm. The system offers the user selectivity of vibrator modes to respond to easy listening, moderate or hard beating rock or jazz. The user beat pattern programmability allows it to customize the vibrator mood to be modified in tune with the user's mood and rhythm of the selected music.

Abstract: An interactive vibrator system provides stimulus to a computer user in response to interaction between computer and user. A signal pick-off device (16) gathers signals present at the computer input/output port (11) and delivers such signals to signal processing device (14) which in turn drives vibrator (21) to provide soothing vibration to the user's body. An interactive vibrator in conjunction with a multimedia computer detects pulses or the like from joystick or other input devices. Corresponding driving of one or more vibrators in response to the detected input device X, Y, Z movement commands or in response to detected audio output from the computer produces tactile feedback to a user of a multimedia game or the like. The vibrations can thereby simulate "G" forces or the like. The joystick, steering wheel or other such input devices are also suitably provided with vibrators therein to generate tactile feedback in response to operation thereof or in response to the audio signals.

Abstract: A low profile vibrating floor mat includes a magnetic gap elastomer placed between vibrating magnetic laminates. The elastomer controls the magnetic gap and prevents the magnetic gap from physically collapsing due to the body weight. Upper and lower protective materials insulate the vibrating magnetic laminates from the environment while effectively transfering vibrating energy to the surface of the floor mat. The floor mat is able to withstand body weight.

Abstract: A signal acquisition system using an ultra-wide time range digitizer with variable time interval data sampling and data storage includes signal conditioning and sampling stages, a digitizing stage for generating digital representations of a signal, and a memory for storing the digital representations. Timing circuitry controls sampling and digitizing which may be varied so as to acquire signals on linear, logarithmic, or other time bases. Signal compression may be obtained by digitizing information only when a desired change rate is observed. A display allows acquired signals to be displayed in linear, logarithmic or other manner.

Abstract: An electronic circuit parameter extraction system is provided with a pulse signal forcing generator, an interface to a device under test (DUT), a signal digitizer, a timebase to control the digitizing interval, a data processor to extract DUT essential root parameters, a circuit and/or system simulator to generate signals from the extracted parameters, and a display system to view acquired and/or simulated signals, and is able to compare simulated signals with previously acquired signals. The circuit parameter extraction system further allows extraction of realistic behavioral model parameters which may be used as a component library model within a computer aided engineering (CAE) simulator, allowing improved convergence between the results obtained with the CAE simulator and the physical circuit system response being modeled.

Abstract: A signal acquisition system using an ultra-wide time range digitizer with variable time interval data sampling and data storage includes signal conditioning and sampling stages, a digitizing stage for generating digital representations of a signal, and a memory for storing the digital representations. Timing circuitry controls sampling and digitizing which may be varied so as to acquire signals on linear, logarithmic, or other time bases. Signal compression may be obtained by digitizing information only when a desired change rate is observed. A display allows acquired signals to be displayed in linear, logarithmic or other manner.

Abstract: A dual path amplifier circuit configuration to obtain wideband and precision DC response includes a wideband voltage amplifier, an input termination, a virtual ground feedback amplifier, and a compensated attenuator. The circuit allows precision DC and wideband measurements through a common signal probe while maintaining the input impedance of the measurement instrument. An additional feature of the circuit is to selectively allow DC measurements before or after an attenuator. The circuit can provide combined wideband and DC signal output or separate wideband and DC outputs. Additionally, the circuit can use a DC offset to null the DC level of an input signal.

Abstract: A general-purpose oscilloscope system is disclosed wherein waveforms acquired by the vertical and horizontal preamplifier channels can be displayed immediately, or they can be digitized and stored in a memory from where they can be recalled, reconstituted in their analog form and displayed at a later time. The processing system permits simultaneous display of instantaneous and processed waveforms, and includes facilities for processing associated z-axis signals and readout data as well. Access to peripheral equipment, such as a computer or the like, permits the digitized waveforms to be mathematically manipulated and returned to the memory in the processing system for ultimate display. The oscilloscope system can be assembled in a modular manner, whereby the processing unit becomes an integral part of the instrument, or the system can be assembled as a general-purpose oscilloscope without the processing unit, allowing a user to add the processing capability to his system at a later time.